<?php
/*
* 2007-2015 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2015 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

/**
 * @deprecated 1.5.0.1
 */
define('_CUSTOMIZE_FILE_', 0);
/**
 * @deprecated 1.5.0.1
 */
define('_CUSTOMIZE_TEXTFIELD_', 1);

class ProductCore extends ObjectModel
{
    /** @var string Tax name */
    public $tax_name;

    /** @var string Tax rate */
    public $tax_rate;

    /** @var int Manufacturer id */
    public $id_manufacturer;

    /** @var int Supplier id */
    public $id_supplier;

    /** @var int default Category id */
    public $id_category_default;

    /** @var int default Shop id */
    public $id_shop_default;

    /** @var string Manufacturer name */
    public $manufacturer_name;

    /** @var string Supplier name */
    public $supplier_name;

    /** @var string Name */
    public $name;

    /** @var string Long description */
    public $description;

    /** @var string Short description */
    public $description_short;

    /** @var int Quantity available */
    public $quantity = 0;

    /** @var int Minimal quantity for add to cart */
    public $minimal_quantity = 1;

    /** @var string available_now */
    public $available_now;

    /** @var string available_later */
    public $available_later;

    /** @var float Price in euros */
    public $price = 0;

    public $specificPrice = 0;

    /** @var float Additional shipping cost */
    public $additional_shipping_cost = 0;

    /** @var float Wholesale Price in euros */
    public $wholesale_price = 0;

    /** @var bool on_sale */
    public $on_sale = false;

    /** @var bool online_only */
    public $online_only = false;

    /** @var string unity */
    public $unity = null;

        /** @var float price for product's unity */
    public $unit_price;

        /** @var float price for product's unity ratio */
    public $unit_price_ratio = 0;

    /** @var float Ecotax */
    public $ecotax = 0;

    /** @var string Reference */
    public $reference;

    /** @var string Supplier Reference */
    public $supplier_reference;

    /** @var string Location */
    public $location;

    /** @var string Width in default width unit */
    public $width = 0;

    /** @var string Height in default height unit */
    public $height = 0;

    /** @var string Depth in default depth unit */
    public $depth = 0;

    /** @var string Weight in default weight unit */
    public $weight = 0;

    /** @var string Ean-13 barcode */
    public $ean13;

    /** @var string Upc barcode */
    public $upc;

    /** @var string Friendly URL */
    public $link_rewrite;

    /** @var string Meta tag description */
    public $meta_description;

    /** @var string Meta tag keywords */
    public $meta_keywords;

    /** @var string Meta tag title */
    public $meta_title;

    /** @var bool Product statuts */
    public $quantity_discount = 0;

    /** @var bool Product customization */
    public $customizable;

    /** @var bool Product is new */
    public $new = null;

    /** @var int Number of uploadable files (concerning customizable products) */
    public $uploadable_files;

    /** @var int Number of text fields */
    public $text_fields;

    /** @var bool Product statuts */
    public $active = true;

    /** @var bool Product statuts */
    public $redirect_type = '';

    /** @var bool Product statuts */
    public $id_product_redirected = 0;

    /** @var bool Product available for order */
    public $available_for_order = true;

    /** @var string Object available order date */
    public $available_date = '0000-00-00';

    /** @var string Enumerated (enum) product condition (new, used, refurbished) */
    public $condition;

    /** @var bool Show price of Product */
    public $show_price = true;

    /** @var bool is the product indexed in the search index? */
    public $indexed = 0;

    /** @var string ENUM('both', 'catalog', 'search', 'none') front office visibility */
    public $visibility;

    /** @var string Object creation date */
    public $date_add;

    /** @var string Object last modification date */
    public $date_upd;

    /*** @var array Tags */
    public $tags;

    /**
     * @var float Base price of the product
     * @deprecated 1.6.0.13
     */
    public $base_price;

    public $id_tax_rules_group = 1;

    /**
     * We keep this variable for retrocompatibility for themes
     * @deprecated 1.5.0
     */
    public $id_color_default = 0;

    /**
     * @since 1.5.0
     * @var bool Tells if the product uses the advanced stock management
     */
    public $advanced_stock_management = 0;
    public $out_of_stock;
    public $depends_on_stock;

    public $isFullyLoaded = false;

    public $cache_is_pack;
    public $cache_has_attachments;
    public $is_virtual;
    public $id_pack_product_attribute;
    public $cache_default_attribute;

    /**
     * @var string If product is populated, this property contain the rewrite link of the default category
     */
    public $category;

    /**
     * @var int tell the type of stock management to apply on the pack
     */
    public $pack_stock_type = 3;

    public static $_taxCalculationMethod = null;
    protected static $_prices = array();
    protected static $_pricesLevel2 = array();
    protected static $_incat = array();

    /**
     * @since 1.5.6.1
     * @var array $_cart_quantity is deprecated since 1.5.6.1
     */
    protected static $_cart_quantity = array();

    protected static $_tax_rules_group = array();
    protected static $_cacheFeatures = array();
    protected static $_frontFeaturesCache = array();
    protected static $producPropertiesCache = array();

    /** @var array cache stock data in getStock() method */
    protected static $cacheStock = array();

    public static $definition = array(
        'table' => 'product',
        'primary' => 'id_product',
        'multilang' => true,
        'multilang_shop' => true,
        'fields' => array(
            /* Classic fields */
            'id_shop_default' =>            array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'id_manufacturer' =>            array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'id_supplier' =>                array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'reference' =>                    array('type' => self::TYPE_STRING, 'validate' => 'isReference', 'size' => 32),
            'supplier_reference' =>        array('type' => self::TYPE_STRING, 'validate' => 'isReference', 'size' => 32),
            'location' =>                    array('type' => self::TYPE_STRING, 'validate' => 'isReference', 'size' => 64),
            'width' =>                        array('type' => self::TYPE_FLOAT, 'validate' => 'isUnsignedFloat'),
            'height' =>                    array('type' => self::TYPE_FLOAT, 'validate' => 'isUnsignedFloat'),
            'depth' =>                        array('type' => self::TYPE_FLOAT, 'validate' => 'isUnsignedFloat'),
            'weight' =>                    array('type' => self::TYPE_FLOAT, 'validate' => 'isUnsignedFloat'),
            'quantity_discount' =>            array('type' => self::TYPE_BOOL, 'validate' => 'isBool'),
            'ean13' =>                        array('type' => self::TYPE_STRING, 'validate' => 'isEan13', 'size' => 13),
            'upc' =>                        array('type' => self::TYPE_STRING, 'validate' => 'isUpc', 'size' => 12),
            'cache_is_pack' =>                array('type' => self::TYPE_BOOL, 'validate' => 'isBool'),
            'cache_has_attachments' =>        array('type' => self::TYPE_BOOL, 'validate' => 'isBool'),
            'is_virtual' =>                array('type' => self::TYPE_BOOL, 'validate' => 'isBool'),

            /* Shop fields */
            'id_category_default' =>        array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedId'),
            'id_tax_rules_group' =>        array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedId'),
            'on_sale' =>                    array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'online_only' =>                array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'ecotax' =>                    array('type' => self::TYPE_FLOAT, 'shop' => true, 'validate' => 'isPrice'),
            'minimal_quantity' =>            array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedInt'),
            'price' =>                        array('type' => self::TYPE_FLOAT, 'shop' => true, 'validate' => 'isPrice', 'required' => true),
            'wholesale_price' =>            array('type' => self::TYPE_FLOAT, 'shop' => true, 'validate' => 'isPrice'),
            'unity' =>                        array('type' => self::TYPE_STRING, 'shop' => true, 'validate' => 'isString'),
            'unit_price_ratio' =>            array('type' => self::TYPE_FLOAT, 'shop' => true),
            'additional_shipping_cost' =>    array('type' => self::TYPE_FLOAT, 'shop' => true, 'validate' => 'isPrice'),
            'customizable' =>                array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedInt'),
            'text_fields' =>                array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedInt'),
            'uploadable_files' =>            array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedInt'),
            'active' =>                    array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'redirect_type' =>                array('type' => self::TYPE_STRING, 'shop' => true, 'validate' => 'isString'),
            'id_product_redirected' =>        array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedId'),
            'available_for_order' =>        array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'available_date' =>            array('type' => self::TYPE_DATE, 'shop' => true, 'validate' => 'isDateFormat'),
            'condition' =>                    array('type' => self::TYPE_STRING, 'shop' => true, 'validate' => 'isGenericName', 'values' => array('new', 'used', 'refurbished'), 'default' => 'new'),
            'show_price' =>                array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'indexed' =>                    array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'visibility' =>                array('type' => self::TYPE_STRING, 'shop' => true, 'validate' => 'isProductVisibility', 'values' => array('both', 'catalog', 'search', 'none'), 'default' => 'both'),
            'cache_default_attribute' =>    array('type' => self::TYPE_INT, 'shop' => true),
            'advanced_stock_management' =>    array('type' => self::TYPE_BOOL, 'shop' => true, 'validate' => 'isBool'),
            'date_add' =>                    array('type' => self::TYPE_DATE, 'shop' => true, 'validate' => 'isDate'),
            'date_upd' =>                    array('type' => self::TYPE_DATE, 'shop' => true, 'validate' => 'isDate'),
            'pack_stock_type' =>            array('type' => self::TYPE_INT, 'shop' => true, 'validate' => 'isUnsignedInt'),

            /* Lang fields */
            'meta_description' =>            array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
            'meta_keywords' =>                array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
            'meta_title' =>                array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 128),
            'link_rewrite' =>    array(
                'type' => self::TYPE_STRING,
                'lang' => true,
                'validate' => 'isLinkRewrite',
                'required' => true,
                'size' => 128,
                'ws_modifier' => array(
                    'http_method' => WebserviceRequest::HTTP_POST,
                    'modifier' => 'modifierWsLinkRewrite'
                )
            ),
            'name' =>                        array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isCatalogName', 'required' => true, 'size' => 128),
            'description' =>                array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isCleanHtml'),
            'description_short' =>            array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isCleanHtml'),
            'available_now' =>                array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
            'available_later' =>            array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'IsGenericName', 'size' => 255),
        ),
        'associations' => array(
            'manufacturer' =>                array('type' => self::HAS_ONE),
            'supplier' =>                    array('type' => self::HAS_ONE),
            'default_category' =>            array('type' => self::HAS_ONE, 'field' => 'id_category_default', 'object' => 'Category'),
            'tax_rules_group' =>            array('type' => self::HAS_ONE),
            'categories' =>                    array('type' => self::HAS_MANY, 'field' => 'id_category', 'object' => 'Category', 'association' => 'category_product'),
            'stock_availables' =>            array('type' => self::HAS_MANY, 'field' => 'id_stock_available', 'object' => 'StockAvailable', 'association' => 'stock_availables'),
        ),
    );

    protected $webserviceParameters = array(
        'objectMethods' => array(
            'add' => 'addWs',
            'update' => 'updateWs'
        ),
        'objectNodeNames' => 'products',
        'fields' => array(
            'id_manufacturer' => array(
                'xlink_resource' => 'manufacturers'
            ),
            'id_supplier' => array(
                'xlink_resource' => 'suppliers'
            ),
            'id_category_default' => array(
                'xlink_resource' => 'categories'
            ),
            'new' => array(),
            'cache_default_attribute' => array(),
            'id_default_image' => array(
                'getter' => 'getCoverWs',
                'setter' => 'setCoverWs',
                'xlink_resource' => array(
                    'resourceName' => 'images',
                    'subResourceName' => 'products'
                )
            ),
            'id_default_combination' => array(
                'getter' => 'getWsDefaultCombination',
                'setter' => 'setWsDefaultCombination',
                'xlink_resource' => array(
                    'resourceName' => 'combinations'
                )
            ),
            'id_tax_rules_group' => array(
                'xlink_resource' => array(
                    'resourceName' => 'tax_rule_groups'
                )
            ),
            'position_in_category' => array(
                'getter' => 'getWsPositionInCategory',
                'setter' => 'setWsPositionInCategory'
            ),
            'manufacturer_name' => array(
                'getter' => 'getWsManufacturerName',
                'setter' => false
            ),
            'quantity' => array(
                'getter' => false,
                'setter' => false
            ),
            'type' => array(
                'getter' => 'getWsType',
                'setter' => 'setWsType',
            ),
        ),
        'associations' => array(
            'categories' => array(
                'resource' => 'category',
                'fields' => array(
                    'id' => array('required' => true),
                )
            ),
            'images' => array(
                'resource' => 'image',
                'fields' => array('id' => array())
            ),
            'combinations' => array(
                'resource' => 'combination',
                'fields' => array(
                    'id' => array('required' => true),
                )
            ),
            'product_option_values' => array(
                'resource' => 'product_option_value',
                'fields' => array(
                    'id' => array('required' => true),
                )
            ),
            'product_features' => array(
                'resource' => 'product_feature',
                'fields' => array(
                    'id' => array('required' => true),
                    'id_feature_value' => array(
                        'required' => true,
                        'xlink_resource' => 'product_feature_values'
                    ),
                )
            ),
            'tags' => array('resource' => 'tag',
                'fields' => array(
                    'id' => array('required' => true),
            )),
            'stock_availables' => array('resource' => 'stock_available',
                'fields' => array(
                    'id' => array('required' => true),
                    'id_product_attribute' => array('required' => true),
                ),
                'setter' => false
            ),
            'accessories' => array(
                'resource' => 'product',
                'api' => 'products',
                'fields' => array(
                    'id' => array(
                        'required' => true,
                        'xlink_resource' => 'product'),
                )
            ),
            'product_bundle' => array(
                'resource' => 'product',
                'api' => 'products',
                'fields' => array(
                    'id' => array('required' => true),
                    'quantity' => array(),
                ),
            ),
        ),
    );

    const CUSTOMIZE_FILE = 0;
    const CUSTOMIZE_TEXTFIELD = 1;

    /**
     * Note:  prefix is "PTYPE" because TYPE_ is used in ObjectModel (definition)
     */
    const PTYPE_SIMPLE = 0;
    const PTYPE_PACK = 1;
    const PTYPE_VIRTUAL = 2;

    public function __construct($id_product = null, $full = false, $id_lang = null, $id_shop = null, Context $context = null)
    {
        parent::__construct($id_product, $id_lang, $id_shop);
        if ($full && $this->id) {
            if (!$context) {
                $context = Context::getContext();
            }

            $this->isFullyLoaded = $full;
            $this->tax_name = 'deprecated'; // The applicable tax may be BOTH the product one AND the state one (moreover this variable is some deadcode)
            $this->manufacturer_name = Manufacturer::getNameById((int)$this->id_manufacturer);
            $this->supplier_name = Supplier::getNameById((int)$this->id_supplier);
            $address = null;
            if (is_object($context->cart) && $context->cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')} != null) {
                $address = $context->cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')};
            }

            $this->tax_rate = $this->getTaxesRate(new Address($address));

            $this->new = $this->isNew();

            // Keep base price
            $this->base_price = $this->price;

            $this->price = Product::getPriceStatic((int)$this->id, false, null, 6, null, false, true, 1, false, null, null, null, $this->specificPrice);
            $this->unit_price = ($this->unit_price_ratio != 0  ? $this->price / $this->unit_price_ratio : 0);
            if ($this->id) {
                $this->tags = Tag::getProductTags((int)$this->id);
            }

            $this->loadStockData();
        }

        if ($this->id_category_default) {
            $this->category = Category::getLinkRewrite((int)$this->id_category_default, (int)$id_lang);
        }
    }

    /**
     * @see ObjectModel::getFieldsShop()
     * @return array
     */
    public function getFieldsShop()
    {
        $fields = parent::getFieldsShop();
        if (is_null($this->update_fields) || (!empty($this->update_fields['price']) && !empty($this->update_fields['unit_price']))) {
            $fields['unit_price_ratio'] = (float)$this->unit_price > 0 ? $this->price / $this->unit_price : 0;
        }
        $fields['unity'] = pSQL($this->unity);

        return $fields;
    }

    public function add($autodate = true, $null_values = false)
    {
        if (!parent::add($autodate, $null_values)) {
            return false;
        }

        $id_shop_list = Shop::getContextListShopID();
        if ($this->getType() == Product::PTYPE_VIRTUAL) {
            foreach ($id_shop_list as $value) {
                StockAvailable::setProductOutOfStock((int)$this->id, 1, $value);
            }

            if ($this->active && !Configuration::get('PS_VIRTUAL_PROD_FEATURE_ACTIVE')) {
                Configuration::updateGlobalValue('PS_VIRTUAL_PROD_FEATURE_ACTIVE', '1');
            }
        } else {
            foreach ($id_shop_list as $value) {
                StockAvailable::setProductOutOfStock((int)$this->id, 2, $value);
            }
        }

        $this->setGroupReduction();
        Hook::exec('actionProductSave', array('id_product' => (int)$this->id, 'product' => $this));
        return true;
    }

    public function update($null_values = false)
    {
        $return = parent::update($null_values);
        $this->setGroupReduction();

        // Sync stock Reference, EAN13 and UPC
        if (Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT') && StockAvailable::dependsOnStock($this->id, Context::getContext()->shop->id)) {
            Db::getInstance()->update('stock', array(
                'reference' => pSQL($this->reference),
                'ean13'     => pSQL($this->ean13),
                'upc'        => pSQL($this->upc),
            ), 'id_product = '.(int)$this->id.' AND id_product_attribute = 0');
        }

        Hook::exec('actionProductSave', array('id_product' => (int)$this->id, 'product' => $this));
        Hook::exec('actionProductUpdate', array('id_product' => (int)$this->id, 'product' => $this));
        if ($this->getType() == Product::PTYPE_VIRTUAL && $this->active && !Configuration::get('PS_VIRTUAL_PROD_FEATURE_ACTIVE')) {
            Configuration::updateGlobalValue('PS_VIRTUAL_PROD_FEATURE_ACTIVE', '1');
        }

        return $return;
    }

    public static function initPricesComputation($id_customer = null)
    {
        if ($id_customer) {
            $customer = new Customer((int)$id_customer);
            if (!Validate::isLoadedObject($customer)) {
                die(Tools::displayError());
            }
            self::$_taxCalculationMethod = Group::getPriceDisplayMethod((int)$customer->id_default_group);
            $cur_cart = Context::getContext()->cart;
            $id_address = 0;
            if (Validate::isLoadedObject($cur_cart)) {
                $id_address = (int)$cur_cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')};
            }
            $address_infos = Address::getCountryAndState($id_address);

            if (self::$_taxCalculationMethod != PS_TAX_EXC
                && !empty($address_infos['vat_number'])
                && $address_infos['id_country'] != Configuration::get('VATNUMBER_COUNTRY')
                && Configuration::get('VATNUMBER_MANAGEMENT')) {
                self::$_taxCalculationMethod = PS_TAX_EXC;
            }
        } else {
            self::$_taxCalculationMethod = Group::getPriceDisplayMethod(Group::getCurrent()->id);
        }
    }

    public static function getTaxCalculationMethod($id_customer = null)
    {
        if (self::$_taxCalculationMethod === null || $id_customer !== null) {
            Product::initPricesComputation($id_customer);
        }

        return (int)self::$_taxCalculationMethod;
    }

    /**
     * Move a product inside its category
     * @param bool $way Up (1)  or Down (0)
     * @param int $position
     * return boolean Update result
     */
    public function updatePosition($way, $position)
    {
        if (!$res = Db::getInstance()->executeS('
            SELECT cp.`id_product`, cp.`position`, cp.`id_category`
            FROM `'._DB_PREFIX_.'category_product` cp
            WHERE cp.`id_category` = '.(int)Tools::getValue('id_category', 1).'
            ORDER BY cp.`position` ASC')
            ) {
            return false;
        }

        foreach ($res as $product) {
            if ((int)$product['id_product'] == (int)$this->id) {
                $moved_product = $product;
            }
        }

        if (!isset($moved_product) || !isset($position)) {
            return false;
        }

        // < and > statements rather than BETWEEN operator
        // since BETWEEN is treated differently according to databases
        $result = (Db::getInstance()->execute('
            UPDATE `'._DB_PREFIX_.'category_product` cp
            INNER JOIN `'._DB_PREFIX_.'product` p ON (p.`id_product` = cp.`id_product`)
            '.Shop::addSqlAssociation('product', 'p').'
            SET cp.`position`= `position` '.($way ? '- 1' : '+ 1').',
            p.`date_upd` = "'.date('Y-m-d H:i:s').'", product_shop.`date_upd` = "'.date('Y-m-d H:i:s').'"
            WHERE cp.`position`
            '.($way
                ? '> '.(int)$moved_product['position'].' AND `position` <= '.(int)$position
                : '< '.(int)$moved_product['position'].' AND `position` >= '.(int)$position).'
            AND `id_category`='.(int)$moved_product['id_category'])
        && Db::getInstance()->execute('
            UPDATE `'._DB_PREFIX_.'category_product` cp
            INNER JOIN `'._DB_PREFIX_.'product` p ON (p.`id_product` = cp.`id_product`)
            '.Shop::addSqlAssociation('product', 'p').'
            SET cp.`position` = '.(int)$position.',
            p.`date_upd` = "'.date('Y-m-d H:i:s').'", product_shop.`date_upd` = "'.date('Y-m-d H:i:s').'"
            WHERE cp.`id_product` = '.(int)$moved_product['id_product'].'
            AND cp.`id_category`='.(int)$moved_product['id_category'])

        );
        Hook::exec('actionProductUpdate', array('id_product' => (int)$this->id, 'product' => $this));
        return $result;
    }

    /*
     * Reorder product position in category $id_category.
     * Call it after deleting a product from a category.
     *
     * @param int $id_category
     */
    public static function cleanPositions($id_category, $position = 0)
    {
        $return = true;

        if (!(int)$position) {
            $result = Db::getInstance()->executeS('
                SELECT `id_product`
                FROM `'._DB_PREFIX_.'category_product`
                WHERE `id_category` = '.(int)$id_category.'
                ORDER BY `position`
            ');
            $total = count($result);

            for ($i = 0; $i < $total; $i++) {
                $return &= Db::getInstance()->update(
                    'category_product',
                    array('position' => $i),
                    '`id_category` = '.(int)$id_category.' AND `id_product` = '.(int)$result[$i]['id_product']
                );
                $return &= Db::getInstance()->execute(
                    'UPDATE `'._DB_PREFIX_.'product` p'.Shop::addSqlAssociation('product', 'p').'
                    SET p.`date_upd` = "'.date('Y-m-d H:i:s').'", product_shop.`date_upd` = "'.date('Y-m-d H:i:s').'"
                    WHERE p.`id_product` = '.(int)$result[$i]['id_product']
                );
            }
        } else {
            $result = Db::getInstance()->executeS('
                SELECT `id_product`
                FROM `'._DB_PREFIX_.'category_product`
                WHERE `id_category` = '.(int)$id_category.' AND `position` > '.(int)$position.'
                ORDER BY `position`
            ');
            $total = count($result);
            $return &= Db::getInstance()->update(
                'category_product',
                array('position' => array('type' => 'sql', 'value' => '`position`-1')),
                '`id_category` = '.(int)$id_category.' AND `position` > '.(int)$position
            );

            for ($i = 0; $i < $total; $i++) {
                $return &= Db::getInstance()->execute(
                    'UPDATE `'._DB_PREFIX_.'product` p'.Shop::addSqlAssociation('product', 'p').'
                    SET p.`date_upd` = "'.date('Y-m-d H:i:s').'", product_shop.`date_upd` = "'.date('Y-m-d H:i:s').'"
                    WHERE p.`id_product` = '.(int)$result[$i]['id_product']
                );
            }
        }
        return $return;
    }

    /**
    * Get the default attribute for a product
    *
    * @return int Attributes list
    */
    public static function getDefaultAttribute($id_product, $minimum_quantity = 0, $reset = false)
    {
        static $combinations = array();

        if (!Combination::isFeatureActive()) {
            return 0;
        }

        if ($reset && isset($combinations[$id_product])) {
            unset($combinations[$id_product]);
        }

        if (!isset($combinations[$id_product])) {
            $combinations[$id_product] = array();
        }
        if (isset($combinations[$id_product][$minimum_quantity])) {
            return $combinations[$id_product][$minimum_quantity];
        }


        $sql = 'SELECT product_attribute_shop.id_product_attribute
				FROM '._DB_PREFIX_.'product_attribute pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				WHERE pa.id_product = '.(int)$id_product;

        $result_no_filter = Db::getInstance()->getValue($sql);
        if (!$result_no_filter) {
            $combinations[$id_product][$minimum_quantity] = 0;
            return 0;
        }

        $sql = 'SELECT product_attribute_shop.id_product_attribute
				FROM '._DB_PREFIX_.'product_attribute pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				'.($minimum_quantity > 0 ? Product::sqlStock('pa', 'pa') : '').
                ' WHERE product_attribute_shop.default_on = 1 '
                .($minimum_quantity > 0 ? ' AND IFNULL(stock.quantity, 0) >= '.(int)$minimum_quantity : '').
                ' AND pa.id_product = '.(int)$id_product;
        $result = Db::getInstance()->getValue($sql);

        if (!$result) {
            $sql = 'SELECT product_attribute_shop.id_product_attribute
					FROM '._DB_PREFIX_.'product_attribute pa
					'.Shop::addSqlAssociation('product_attribute', 'pa').'
					'.($minimum_quantity > 0 ? Product::sqlStock('pa', 'pa') : '').
                    ' WHERE pa.id_product = '.(int)$id_product
                    .($minimum_quantity > 0 ? ' AND IFNULL(stock.quantity, 0) >= '.(int)$minimum_quantity : '');

            $result = Db::getInstance()->getValue($sql);
        }

        if (!$result) {
            $sql = 'SELECT product_attribute_shop.id_product_attribute
					FROM '._DB_PREFIX_.'product_attribute pa
					'.Shop::addSqlAssociation('product_attribute', 'pa').'
					WHERE product_attribute_shop.`default_on` = 1
					AND pa.id_product = '.(int)$id_product;

            $result = Db::getInstance()->getValue($sql);
        }

        if (!$result) {
            $result = $result_no_filter;
        }

        $combinations[$id_product][$minimum_quantity] = $result;
        return $result;
    }

    public function setAvailableDate($available_date = '0000-00-00')
    {
        if (Validate::isDateFormat($available_date) && $this->available_date != $available_date) {
            $this->available_date = $available_date;
            return $this->update();
        }
        return false;
    }

    /**
     * For a given id_product and id_product_attribute, return available date
     *
     * @param int $id_product
     * @param int $id_product_attribute Optional
     * @return string/null
     */
    public static function getAvailableDate($id_product, $id_product_attribute = null)
    {
        $sql = 'SELECT';

        if ($id_product_attribute === null) {
            $sql .= ' p.`available_date`';
        } else {
            $sql .= ' IF(pa.`available_date` = "0000-00-00", p.`available_date`, pa.`available_date`) AS available_date';
        }

        $sql .= ' FROM `'._DB_PREFIX_.'product` p';

        if ($id_product_attribute !== null) {
            $sql .= ' LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa ON (pa.`id_product` = p.`id_product`)';
        }

        $sql .= Shop::addSqlAssociation('product', 'p');

        if ($id_product_attribute !== null) {
            $sql .= Shop::addSqlAssociation('product_attribute', 'pa');
        }

        $sql .= ' WHERE p.`id_product` = '.(int)$id_product;

        if ($id_product_attribute !== null) {
            $sql .= ' AND pa.`id_product` = '.(int)$id_product.' AND pa.`id_product_attribute` = '.(int)$id_product_attribute;
        }

        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($sql);

        if ($result == '0000-00-00') {
            $result = null;
        }

        return $result;
    }

    public static function updateIsVirtual($id_product, $is_virtual = true)
    {
        Db::getInstance()->update('product', array(
            'is_virtual' => (bool)$is_virtual,
        ), 'id_product = '.(int)$id_product);
    }

    /**
     * @see ObjectModel::validateField()
     */
    public function validateField($field, $value, $id_lang = null, $skip = array(), $human_errors = false)
    {
        if ($field == 'description_short') {
            $limit = (int)Configuration::get('PS_PRODUCT_SHORT_DESC_LIMIT');
            if ($limit <= 0) {
                $limit = 800;
            }

            $size_without_html = Tools::strlen(strip_tags($value));
            $size_with_html = Tools::strlen($value);
            $this->def['fields']['description_short']['size'] = $limit + $size_with_html - $size_without_html;
        }
        return parent::validateField($field, $value, $id_lang, $skip, $human_errors);
    }

    public function toggleStatus()
    {
        //test if the product is active and if redirect_type is empty string and set default value to id_product_redirected & redirect_type
        //  /!\ after parent::toggleStatus() active will be false, that why we set 404 by default :p
        if ($this->active) {
            //case where active will be false after parent::toggleStatus()
            $this->id_product_redirected = 0;
            $this->redirect_type = '404';
        } else {
            //case where active will be true after parent::toggleStatus()
            $this->id_product_redirected = 0;
            $this->redirect_type = '';
        }
        return parent::toggleStatus();
    }

    public function delete()
    {
        /*
         * @since 1.5.0
         * It is NOT possible to delete a product if there are currently:
         * - physical stock for this product
         * - supply order(s) for this product
         */
        if (Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT') && $this->advanced_stock_management) {
            $stock_manager = StockManagerFactory::getManager();
            $physical_quantity = $stock_manager->getProductPhysicalQuantities($this->id, 0);
            $real_quantity = $stock_manager->getProductRealQuantities($this->id, 0);
            if ($physical_quantity > 0) {
                return false;
            }
            if ($real_quantity > $physical_quantity) {
                return false;
            }

            $warehouse_product_locations = Adapter_ServiceLocator::get('Core_Foundation_Database_EntityManager')->getRepository('WarehouseProductLocation')->findByIdProduct($this->id);
            foreach ($warehouse_product_locations as $warehouse_product_location) {
                $warehouse_product_location->delete();
            }

            $stocks = Adapter_ServiceLocator::get('Core_Foundation_Database_EntityManager')->getRepository('Stock')->findByIdProduct($this->id);
            foreach ($stocks as $stock) {
                $stock->delete();
            }
        }
        $result = parent::delete();

        // Removes the product from StockAvailable, for the current shop
        StockAvailable::removeProductFromStockAvailable($this->id);
        $result &= ($this->deleteProductAttributes() && $this->deleteImages() && $this->deleteSceneProducts());
        // If there are still entries in product_shop, don't remove completely the product
        if ($this->hasMultishopEntries()) {
            return true;
        }

        Hook::exec('actionProductDelete', array('id_product' => (int)$this->id, 'product' => $this));
        if (!$result ||
            !GroupReduction::deleteProductReduction($this->id) ||
            !$this->deleteCategories(true) ||
            !$this->deleteProductFeatures() ||
            !$this->deleteTags() ||
            !$this->deleteCartProducts() ||
            !$this->deleteAttributesImpacts() ||
            !$this->deleteAttachments(false) ||
            !$this->deleteCustomization() ||
            !SpecificPrice::deleteByProductId((int)$this->id) ||
            !$this->deletePack() ||
            !$this->deleteProductSale() ||
            !$this->deleteSearchIndexes() ||
            !$this->deleteAccessories() ||
            !$this->deleteFromAccessories() ||
            !$this->deleteFromSupplier() ||
            !$this->deleteDownload() ||
            !$this->deleteFromCartRules()) {
            return false;
        }

        return true;
    }

    public function deleteSelection($products)
    {
        $return = 1;
        if (is_array($products) && ($count = count($products))) {
            // Deleting products can be quite long on a cheap server. Let's say 1.5 seconds by product (I've seen it!).
            if (intval(ini_get('max_execution_time')) < round($count * 1.5)) {
                ini_set('max_execution_time', round($count * 1.5));
            }

            foreach ($products as $id_product) {
                $product = new Product((int)$id_product);
                $return &= $product->delete();
            }
        }
        return $return;
    }

    public function deleteFromCartRules()
    {
        CartRule::cleanProductRuleIntegrity('products', $this->id);
        return true;
    }

    public function deleteFromSupplier()
    {
        return Db::getInstance()->delete('product_supplier', 'id_product = '.(int)$this->id);
    }

    /**
     * addToCategories add this product to the category/ies if not exists.
     *
     * @param mixed $categories id_category or array of id_category
     * @return bool true if succeed
     */
    public function addToCategories($categories = array())
    {
        if (empty($categories)) {
            return false;
        }

        if (!is_array($categories)) {
            $categories = array($categories);
        }

        if (!count($categories)) {
            return false;
        }

        $categories = array_map('intval', $categories);

        $current_categories = $this->getCategories();
        $current_categories = array_map('intval', $current_categories);

        // for new categ, put product at last position
        $res_categ_new_pos = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
			SELECT id_category, MAX(position)+1 newPos
			FROM `'._DB_PREFIX_.'category_product`
			WHERE `id_category` IN('.implode(',', $categories).')
			GROUP BY id_category');
        foreach ($res_categ_new_pos as $array) {
            $new_categories[(int)$array['id_category']] = (int)$array['newPos'];
        }

        $new_categ_pos = array();
        foreach ($categories as $id_category) {
            $new_categ_pos[$id_category] = isset($new_categories[$id_category]) ? $new_categories[$id_category] : 0;
        }

        $product_cats = array();

        foreach ($categories as $new_id_categ) {
            if (!in_array($new_id_categ, $current_categories)) {
                $product_cats[] = array(
                    'id_category' => (int)$new_id_categ,
                    'id_product' => (int)$this->id,
                    'position' => (int)$new_categ_pos[$new_id_categ],
                );
            }
        }

        Db::getInstance()->insert('category_product', $product_cats);
        return true;
    }

    /**
    * Update categories to index product into
    *
    * @param string $productCategories Categories list to index product into
    * @param bool $keeping_current_pos (deprecated, no more used)
    * @return array Update/insertion result
    */
    public function updateCategories($categories, $keeping_current_pos = false)
    {
        if (empty($categories)) {
            return false;
        }

        $result = Db::getInstance()->executeS('
			SELECT c.`id_category`
			FROM `'._DB_PREFIX_.'category_product` cp
			LEFT JOIN `'._DB_PREFIX_.'category` c ON (c.`id_category` = cp.`id_category`)
			'.Shop::addSqlAssociation('category', 'c', true, null, true).'
			WHERE cp.`id_category` NOT IN ('.implode(',', array_map('intval', $categories)).')
			AND cp.id_product = '.$this->id
        );

        // if none are found, it's an error
        if (!is_array($result)) {
            return false;
        }

        foreach ($result as $categ_to_delete) {
            $this->deleteCategory($categ_to_delete['id_category']);
        }

        if (!$this->addToCategories($categories)) {
            return false;
        }

        SpecificPriceRule::applyAllRules(array((int)$this->id));
        return true;
    }

    /**
     * deleteCategory delete this product from the category $id_category
     *
     * @param mixed $id_category
     * @param mixed $clean_positions
     * @return bool
     */
    public function deleteCategory($id_category, $clean_positions = true)
    {
        $result = Db::getInstance()->executeS(
            'SELECT `id_category`, `position`
			FROM `'._DB_PREFIX_.'category_product`
			WHERE `id_product` = '.(int)$this->id.'
			AND id_category = '.(int)$id_category.''
        );

        $return = Db::getInstance()->delete('category_product', 'id_product = '.(int)$this->id.' AND id_category = '.(int)$id_category);
        if ($clean_positions === true) {
            foreach ($result as $row) {
                $this->cleanPositions((int)$row['id_category'], (int)$row['position']);
            }
        }
        SpecificPriceRule::applyAllRules(array((int)$this->id));
        return $return;
    }

    /**
    * Delete all association to category where product is indexed
    *
    * @param bool $clean_positions clean category positions after deletion
    * @return array Deletion result
    */
    public function deleteCategories($clean_positions = false)
    {
        if ($clean_positions === true) {
            $result = Db::getInstance()->executeS(
                'SELECT `id_category`, `position`
				FROM `'._DB_PREFIX_.'category_product`
				WHERE `id_product` = '.(int)$this->id
            );
        }

        $return = Db::getInstance()->delete('category_product', 'id_product = '.(int)$this->id);
        if ($clean_positions === true && is_array($result)) {
            foreach ($result as $row) {
                $return &= $this->cleanPositions((int)$row['id_category'], (int)$row['position']);
            }
        }

        return $return;
    }

    /**
    * Delete products tags entries
    *
    * @return array Deletion result
    */
    public function deleteTags()
    {
        return Tag::deleteTagsForProduct((int)$this->id);
    }

    /**
    * Delete product from cart
    *
    * @return array Deletion result
    */
    public function deleteCartProducts()
    {
        return Db::getInstance()->delete('cart_product', 'id_product = '.(int)$this->id);
    }

    /**
    * Delete product images from database
    *
    * @return bool success
    */
    public function deleteImages()
    {
        $result = Db::getInstance()->executeS('
			SELECT `id_image`
			FROM `'._DB_PREFIX_.'image`
			WHERE `id_product` = '.(int)$this->id
        );

        $status = true;
        if ($result) {
            foreach ($result as $row) {
                $image = new Image($row['id_image']);
                $status &= $image->delete();
            }
        }
        return $status;
    }

    /**
     * @deprecated 1.5.0 Use Combination::getPrice()
     */
    public static function getProductAttributePrice($id_product_attribute)
    {
        return Combination::getPrice($id_product_attribute);
    }

    /**
    * Get all available products
    *
    * @param int $id_lang Language id
    * @param int $start Start number
    * @param int $limit Number of products to return
    * @param string $order_by Field for ordering
    * @param string $order_way Way for ordering (ASC or DESC)
    * @return array Products details
    */
    public static function getProducts($id_lang, $start, $limit, $order_by, $order_way, $id_category = false,
        $only_active = false, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront'))) {
            $front = false;
        }

        if (!Validate::isOrderBy($order_by) || !Validate::isOrderWay($order_way)) {
            die(Tools::displayError());
        }
        if ($order_by == 'id_product' || $order_by == 'price' || $order_by == 'date_add' || $order_by == 'date_upd') {
            $order_by_prefix = 'p';
        } elseif ($order_by == 'name') {
            $order_by_prefix = 'pl';
        } elseif ($order_by == 'position') {
            $order_by_prefix = 'c';
        }

        if (strpos($order_by, '.') > 0) {
            $order_by = explode('.', $order_by);
            $order_by_prefix = $order_by[0];
            $order_by = $order_by[1];
        }
        $sql = 'SELECT p.*, product_shop.*, pl.* , m.`name` AS manufacturer_name, s.`name` AS supplier_name
				FROM `'._DB_PREFIX_.'product` p
				'.Shop::addSqlAssociation('product', 'p').'
				LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (p.`id_product` = pl.`id_product` '.Shop::addSqlRestrictionOnLang('pl').')
				LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON (m.`id_manufacturer` = p.`id_manufacturer`)
				LEFT JOIN `'._DB_PREFIX_.'supplier` s ON (s.`id_supplier` = p.`id_supplier`)'.
                ($id_category ? 'LEFT JOIN `'._DB_PREFIX_.'category_product` c ON (c.`id_product` = p.`id_product`)' : '').'
				WHERE pl.`id_lang` = '.(int)$id_lang.
                    ($id_category ? ' AND c.`id_category` = '.(int)$id_category : '').
                    ($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '').
                    ($only_active ? ' AND product_shop.`active` = 1' : '').'
				ORDER BY '.(isset($order_by_prefix) ? pSQL($order_by_prefix).'.' : '').'`'.pSQL($order_by).'` '.pSQL($order_way).
                ($limit > 0 ? ' LIMIT '.(int)$start.','.(int)$limit : '');
        $rq = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
        if ($order_by == 'price') {
            Tools::orderbyPrice($rq, $order_way);
        }

        foreach ($rq as &$row) {
            $row = Product::getTaxesInformations($row);
        }

        return ($rq);
    }

    public static function getSimpleProducts($id_lang, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront'))) {
            $front = false;
        }

        $sql = 'SELECT p.`id_product`, pl.`name`
				FROM `'._DB_PREFIX_.'product` p
				'.Shop::addSqlAssociation('product', 'p').'
				LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (p.`id_product` = pl.`id_product` '.Shop::addSqlRestrictionOnLang('pl').')
				WHERE pl.`id_lang` = '.(int)$id_lang.'
				'.($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '').'
				ORDER BY pl.`name`';
        return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
    }

    public function isNew()
    {
        $result = Db::getInstance()->executeS('
			SELECT p.id_product
			FROM `'._DB_PREFIX_.'product` p
			'.Shop::addSqlAssociation('product', 'p').'
			WHERE p.id_product = '.(int)$this->id.'
			AND DATEDIFF(
				product_shop.`date_add`,
				DATE_SUB(
					"'.date('Y-m-d').' 00:00:00",
					INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY
				)
			) > 0
		', true, false);
        return count($result) > 0;
    }

    public function productAttributeExists($attributes_list, $current_product_attribute = false, Context $context = null, $all_shops = false, $return_id = false)
    {
        if (!Combination::isFeatureActive()) {
            return false;
        }
        if ($context === null) {
            $context = Context::getContext();
        }
        $result = Db::getInstance()->executeS(
            'SELECT pac.`id_attribute`, pac.`id_product_attribute`
			FROM `'._DB_PREFIX_.'product_attribute` pa
			JOIN `'._DB_PREFIX_.'product_attribute_shop` pas ON (pas.id_product_attribute = pa.id_product_attribute)
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
			WHERE 1 '.(!$all_shops ? ' AND pas.id_shop ='.(int)$context->shop->id : '').' AND pa.`id_product` = '.(int)$this->id.
            ($all_shops ? ' GROUP BY pac.id_attribute, pac.id_product_attribute ' : '')
        );

        /* If something's wrong */
        if (!$result || empty($result)) {
            return false;
        }
        /* Product attributes simulation */
        $product_attributes = array();
        foreach ($result as $product_attribute) {
            $product_attributes[$product_attribute['id_product_attribute']][] = $product_attribute['id_attribute'];
        }
        /* Checking product's attribute existence */
        foreach ($product_attributes as $key => $product_attribute) {
            if (count($product_attribute) == count($attributes_list)) {
                $diff = false;
                for ($i = 0; $diff == false && isset($product_attribute[$i]); $i++) {
                    if (!in_array($product_attribute[$i], $attributes_list) || $key == $current_product_attribute) {
                        $diff = true;
                    }
                }
                if (!$diff) {
                    if ($return_id) {
                        return $key;
                    }
                    return true;
                }
            }
        }

        return false;
    }

    /**
     * addProductAttribute is deprecated
     *
     * The quantity params now set StockAvailable for the current shop with the specified quantity
     * The supplier_reference params now set the supplier reference of the default supplier of the product if possible
     *
     * @see StockManager if you want to manage real stock
     * @see StockAvailable if you want to manage available quantities for sale on your shop(s)
     * @see ProductSupplier for manage supplier reference(s)
     *
     * @deprecated since 1.5.0
     */
    public function addProductAttribute($price, $weight, $unit_impact, $ecotax, $quantity, $id_images, $reference,
        $id_supplier = null, $ean13, $default, $location = null, $upc = null, $minimal_quantity = 1)
    {
        Tools::displayAsDeprecated();

        $id_product_attribute = $this->addAttribute(
            $price, $weight, $unit_impact, $ecotax, $id_images,
            $reference, $ean13, $default, $location, $upc, $minimal_quantity
        );

        if (!$id_product_attribute) {
            return false;
        }

        StockAvailable::setQuantity($this->id, $id_product_attribute, $quantity);
        //Try to set the default supplier reference
        $this->addSupplierReference($id_supplier, $id_product_attribute);
        return $id_product_attribute;
    }

    public function generateMultipleCombinations($combinations, $attributes)
    {
        $res = true;
        $default_on = 1;
        foreach ($combinations as $key => $combination) {
            $id_combination = (int)$this->productAttributeExists($attributes[$key], false, null, true, true);
            $obj = new Combination($id_combination);

            if ($id_combination) {
                $obj->minimal_quantity = 1;
                $obj->available_date = '0000-00-00';
            }

            foreach ($combination as $field => $value) {
                $obj->$field = $value;
            }

            $obj->default_on = $default_on;
            $default_on = 0;
            $this->setAvailableDate();

            $obj->save();

            if (!$id_combination) {
                $attribute_list = array();
                foreach ($attributes[$key] as $id_attribute) {
                    $attribute_list[] = array(
                        'id_product_attribute' => (int)$obj->id,
                        'id_attribute' => (int)$id_attribute
                    );
                }
                $res &= Db::getInstance()->insert('product_attribute_combination', $attribute_list);
            }
        }

        return $res;
    }

    /**
    * @param int $quantity DEPRECATED
    * @param string $supplier_reference DEPRECATED
    */
    public function addCombinationEntity($wholesale_price, $price, $weight, $unit_impact, $ecotax, $quantity,
        $id_images, $reference, $id_supplier, $ean13, $default, $location = null, $upc = null, $minimal_quantity = 1, array $id_shop_list = array(), $available_date = null)
    {
        $id_product_attribute = $this->addAttribute(
            $price, $weight, $unit_impact, $ecotax, $id_images,
            $reference, $ean13, $default, $location, $upc, $minimal_quantity, $id_shop_list, $available_date);
        $this->addSupplierReference($id_supplier, $id_product_attribute);
        $result = ObjectModel::updateMultishopTable('Combination', array(
            'wholesale_price' => (float)$wholesale_price,
        ), 'a.id_product_attribute = '.(int)$id_product_attribute);

        if (!$id_product_attribute || !$result) {
            return false;
        }

        return $id_product_attribute;
    }

    /**
     * @deprecated 1.5.5.0
     * @param $attributes
     * @param bool $set_default
     * @return array
     */
    public function addProductAttributeMultiple($attributes, $set_default = true)
    {
        Tools::displayAsDeprecated();
        $return = array();
        $default_value = 1;
        foreach ($attributes as &$attribute) {
            $obj = new Combination();
            foreach ($attribute as $key => $value) {
                $obj->$key = $value;
            }

            if ($set_default) {
                $obj->default_on = $default_value;
                $default_value = 0;
                // if we add a combination for this shop and this product does not use the combination feature in other shop,
                // we clone the default combination in every shop linked to this product
                if (!$this->hasAttributesInOtherShops()) {
                    $id_shop_list_array = Product::getShopsByProduct($this->id);
                    $id_shop_list = array();
                    foreach ($id_shop_list_array as $array_shop) {
                        $id_shop_list[] = $array_shop['id_shop'];
                    }
                    $obj->id_shop_list = $id_shop_list;
                }
            }
            $obj->add();
            $return[] = $obj->id;
        }

        return $return;
    }

    /**
    * Del all default attributes for product
    */
    public function deleteDefaultAttributes()
    {
        return ObjectModel::updateMultishopTable('Combination', array(
            'default_on' => null,
        ), 'a.`id_product` = '.(int)$this->id);
    }

    public function setDefaultAttribute($id_product_attribute)
    {
        $result = ObjectModel::updateMultishopTable('Combination', array(
            'default_on' => 1
        ), 'a.`id_product` = '.(int)$this->id.' AND a.`id_product_attribute` = '.(int)$id_product_attribute);

        $result &= ObjectModel::updateMultishopTable('product', array(
            'cache_default_attribute' => (int)$id_product_attribute,
        ), 'a.`id_product` = '.(int)$this->id);
        $this->cache_default_attribute = (int)$id_product_attribute;
        return $result;
    }

    public static function updateDefaultAttribute($id_product)
    {
        $id_default_attribute = (int)Product::getDefaultAttribute($id_product, 0, true);

        $result = Db::getInstance()->update('product_shop', array(
            'cache_default_attribute' => $id_default_attribute,
        ), 'id_product = '.(int)$id_product.Shop::addSqlRestriction());

        $result &= Db::getInstance()->update('product', array(
            'cache_default_attribute' => $id_default_attribute,
        ), 'id_product = '.(int)$id_product);

        if ($result && $id_default_attribute) {
            return $id_default_attribute;
        } else {
            return $result;
        }
    }

    /**
    * Update a product attribute
    *
    * @deprecated since 1.5
    * @see updateAttribute() to use instead
    * @see ProductSupplier for manage supplier reference(s)
    *
    */
    public function updateProductAttribute($id_product_attribute, $wholesale_price, $price, $weight, $unit, $ecotax,
        $id_images, $reference, $id_supplier = null, $ean13, $default, $location = null, $upc = null, $minimal_quantity, $available_date)
    {
        Tools::displayAsDeprecated();

        $return = $this->updateAttribute(
            $id_product_attribute, $wholesale_price, $price, $weight, $unit, $ecotax,
            $id_images, $reference, $ean13, $default, $location = null, $upc = null, $minimal_quantity, $available_date
        );
        $this->addSupplierReference($id_supplier, $id_product_attribute);

        return $return;
    }

    /**
     * Sets or updates Supplier Reference
     *
     * @param int $id_supplier
     * @param int $id_product_attribute
     * @param string $supplier_reference
     * @param float $price
     * @param int $id_currency
     */
    public function addSupplierReference($id_supplier, $id_product_attribute, $supplier_reference = null, $price = null, $id_currency = null)
    {
        //in some case we need to add price without supplier reference
        if ($supplier_reference === null) {
            $supplier_reference = '';
        }

        //Try to set the default supplier reference
        if (($id_supplier > 0) && ($this->id > 0)) {
            $id_product_supplier = (int)ProductSupplier::getIdByProductAndSupplier($this->id, $id_product_attribute, $id_supplier);

            $product_supplier = new ProductSupplier($id_product_supplier);

            if (!$id_product_supplier) {
                $product_supplier->id_product = (int)$this->id;
                $product_supplier->id_product_attribute = (int)$id_product_attribute;
                $product_supplier->id_supplier = (int)$id_supplier;
            }

            $product_supplier->product_supplier_reference = pSQL($supplier_reference);
            $product_supplier->product_supplier_price_te = !is_null($price) ? (float)$price : (float)$product_supplier->product_supplier_price_te;
            $product_supplier->id_currency = !is_null($id_currency) ? (int)$id_currency : (int)$product_supplier->id_currency;
            $product_supplier->save();
        }
    }

    /**
    * Update a product attribute
    *
    * @param int $id_product_attribute Product attribute id
    * @param float $wholesale_price Wholesale price
    * @param float $price Additional price
    * @param float $weight Additional weight
    * @param float $unit
    * @param float $ecotax Additional ecotax
    * @param int $id_image Image id
    * @param string $reference Reference
    * @param string $ean13 Ean-13 barcode
    * @param int $default Default On
    * @param string $upc Upc barcode
    * @param string $minimal_quantity Minimal quantity
    * @return array Update result
    */
    public function updateAttribute($id_product_attribute, $wholesale_price, $price, $weight, $unit, $ecotax,
        $id_images, $reference, $ean13, $default, $location = null, $upc = null, $minimal_quantity = null, $available_date = null, $update_all_fields = true, array $id_shop_list = array())
    {
        $combination = new Combination($id_product_attribute);

        if (!$update_all_fields) {
            $combination->setFieldsToUpdate(array(
                'price' => !is_null($price),
                'wholesale_price' => !is_null($wholesale_price),
                'ecotax' => !is_null($ecotax),
                'weight' => !is_null($weight),
                'unit_price_impact' => !is_null($unit),
                'default_on' => !is_null($default),
                'minimal_quantity' => !is_null($minimal_quantity),
                'available_date' => !is_null($available_date),
            ));
        }

        $price = str_replace(',', '.', $price);
        $weight = str_replace(',', '.', $weight);

        $combination->price = (float)$price;
        $combination->wholesale_price = (float)$wholesale_price;
        $combination->ecotax = (float)$ecotax;
        $combination->weight = (float)$weight;
        $combination->unit_price_impact = (float)$unit;
        $combination->reference = pSQL($reference);
        $combination->location = pSQL($location);
        $combination->ean13 = pSQL($ean13);
        $combination->upc = pSQL($upc);
        $combination->default_on = (int)$default;
        $combination->minimal_quantity = (int)$minimal_quantity;
        $combination->available_date = $available_date ? pSQL($available_date) : '0000-00-00';

        if (count($id_shop_list)) {
            $combination->id_shop_list = $id_shop_list;
        }

        $combination->save();

        if (is_array($id_images) && count($id_images)) {
            $combination->setImages($id_images);
        }

        $id_default_attribute = (int)Product::updateDefaultAttribute($this->id);
        if ($id_default_attribute) {
            $this->cache_default_attribute = $id_default_attribute;
        }

        // Sync stock Reference, EAN13 and UPC for this attribute
        if (Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT') && StockAvailable::dependsOnStock($this->id, Context::getContext()->shop->id)) {
            Db::getInstance()->update('stock', array(
                'reference' => pSQL($reference),
                'ean13'     => pSQL($ean13),
                'upc'        => pSQL($upc),
            ), 'id_product = '.$this->id.' AND id_product_attribute = '.(int)$id_product_attribute);
        }

        Hook::exec('actionProductAttributeUpdate', array('id_product_attribute' => (int)$id_product_attribute));
        Tools::clearColorListCache($this->id);

        return true;
    }

    /**
     * Add a product attribute
     * @since 1.5.0.1
     *
     * @param float $price Additional price
     * @param float $weight Additional weight
     * @param float $ecotax Additional ecotax
     * @param int $id_images Image ids
     * @param string $reference Reference
     * @param string $location Location
     * @param string $ean13 Ean-13 barcode
     * @param bool $default Is default attribute for product
     * @param int $minimal_quantity Minimal quantity to add to cart
     * @return mixed $id_product_attribute or false
     */
    public function addAttribute($price, $weight, $unit_impact, $ecotax, $id_images, $reference, $ean13,
                                 $default, $location = null, $upc = null, $minimal_quantity = 1, array $id_shop_list = array(), $available_date = null)
    {
        if (!$this->id) {
            return;
        }

        $price = str_replace(',', '.', $price);
        $weight = str_replace(',', '.', $weight);

        $combination = new Combination();
        $combination->id_product = (int)$this->id;
        $combination->price = (float)$price;
        $combination->ecotax = (float)$ecotax;
        $combination->quantity = 0;
        $combination->weight = (float)$weight;
        $combination->unit_price_impact = (float)$unit_impact;
        $combination->reference = pSQL($reference);
        $combination->location = pSQL($location);
        $combination->ean13 = pSQL($ean13);
        $combination->upc = pSQL($upc);
        $combination->default_on = (int)$default;
        $combination->minimal_quantity = (int)$minimal_quantity;
        $combination->available_date = $available_date;

        if (count($id_shop_list)) {
            $combination->id_shop_list = array_unique($id_shop_list);
        }

        $combination->add();

        if (!$combination->id) {
            return false;
        }

        $total_quantity = (int)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT SUM(quantity) as quantity
			FROM '._DB_PREFIX_.'stock_available
			WHERE id_product = '.(int)$this->id.'
			AND id_product_attribute <> 0 '
        );

        if (!$total_quantity) {
            Db::getInstance()->update('stock_available', array('quantity' => 0), '`id_product` = '.$this->id);
        }

        $id_default_attribute = Product::updateDefaultAttribute($this->id);

        if ($id_default_attribute) {
            $this->cache_default_attribute = $id_default_attribute;
            if (!$combination->available_date) {
                $this->setAvailableDate();
            }
        }

        if (!empty($id_images)) {
            $combination->setImages($id_images);
        }

        Tools::clearColorListCache($this->id);

        if (Configuration::get('PS_DEFAULT_WAREHOUSE_NEW_PRODUCT') != 0 && Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT')) {
            $warehouse_location_entity = new WarehouseProductLocation();
            $warehouse_location_entity->id_product = $this->id;
            $warehouse_location_entity->id_product_attribute = (int)$combination->id;
            $warehouse_location_entity->id_warehouse = Configuration::get('PS_DEFAULT_WAREHOUSE_NEW_PRODUCT');
            $warehouse_location_entity->location = pSQL('');
            $warehouse_location_entity->save();
        }

        return (int)$combination->id;
    }


    /**
     * @deprecated since 1.5.0
     */
    public function updateQuantityProductWithAttributeQuantity()
    {
        Tools::displayAsDeprecated();

        return Db::getInstance()->execute('
		UPDATE `'._DB_PREFIX_.'product`
		SET `quantity` = IFNULL(
		(
			SELECT SUM(`quantity`)
			FROM `'._DB_PREFIX_.'product_attribute`
			WHERE `id_product` = '.(int)$this->id.'
		), \'0\')
		WHERE `id_product` = '.(int)$this->id);
    }
    /**
    * Delete product attributes
    *
    * @return array Deletion result
    */
    public function deleteProductAttributes()
    {
        Hook::exec('actionProductAttributeDelete', array('id_product_attribute' => 0, 'id_product' => (int)$this->id, 'deleteAllAttributes' => true));

        $result = true;
        $combinations = new PrestaShopCollection('Combination');
        $combinations->where('id_product', '=', $this->id);
        foreach ($combinations as $combination) {
            $result &= $combination->delete();
        }
        SpecificPriceRule::applyAllRules(array((int)$this->id));
        Tools::clearColorListCache($this->id);
        return $result;
    }

    /**
     * Delete product attributes impacts
     *
     * @return bool
     */
    public function deleteAttributesImpacts()
    {
        return Db::getInstance()->execute(
            'DELETE FROM `'._DB_PREFIX_.'attribute_impact`
			WHERE `id_product` = '.(int)$this->id
        );
    }

    /**
    * Delete product features
    *
    * @return array Deletion result
    */
    public function deleteProductFeatures()
    {
        SpecificPriceRule::applyAllRules(array((int)$this->id));
        return $this->deleteFeatures();
    }


    public static function updateCacheAttachment($id_product)
    {
        $value = (bool)Db::getInstance()->getValue('
								SELECT id_attachment
								FROM '._DB_PREFIX_.'product_attachment
								WHERE id_product='.(int)$id_product);
        return Db::getInstance()->update(
                        'product',
                        array('cache_has_attachments' => (int)$value),
                        'id_product = '.(int)$id_product
                    );
    }

    /**
    * Delete product attachments
    *
    * @param bool $update_cache If set to true attachment cache will be updated
    * @return array Deletion result
    */
    public function deleteAttachments($update_attachment_cache = true)
    {
        $res = Db::getInstance()->execute('
			DELETE FROM `'._DB_PREFIX_.'product_attachment`
			WHERE `id_product` = '.(int)$this->id
        );

        if (isset($update_attachment_cache) && (bool)$update_attachment_cache === true) {
            Product::updateCacheAttachment((int)$this->id);
        }

        return $res;
    }

    /**
    * Delete product customizations
    *
    * @return array Deletion result
    */
    public function deleteCustomization()
    {
        return (
            Db::getInstance()->execute(
                'DELETE FROM `'._DB_PREFIX_.'customization_field`
				WHERE `id_product` = '.(int)$this->id
            )
            &&
            Db::getInstance()->execute(
                'DELETE `'._DB_PREFIX_.'customization_field_lang` FROM `'._DB_PREFIX_.'customization_field_lang` LEFT JOIN `'._DB_PREFIX_.'customization_field`
				ON ('._DB_PREFIX_.'customization_field.id_customization_field = '._DB_PREFIX_.'customization_field_lang.id_customization_field)
				WHERE '._DB_PREFIX_.'customization_field.id_customization_field IS NULL'
            )
        );
    }

    /**
    * Delete product pack details
    *
    * @return array Deletion result
    */
    public function deletePack()
    {
        return Db::getInstance()->execute(
            'DELETE FROM `'._DB_PREFIX_.'pack`
			WHERE `id_product_pack` = '.(int)$this->id.'
			OR `id_product_item` = '.(int)$this->id
        );
    }

    /**
    * Delete product sales
    *
    * @return array Deletion result
    */
    public function deleteProductSale()
    {
        return Db::getInstance()->execute(
            'DELETE FROM `'._DB_PREFIX_.'product_sale`
			WHERE `id_product` = '.(int)$this->id
        );
    }

    /**
    * Delete product in its scenes
    *
    * @return array Deletion result
    */
    public function deleteSceneProducts()
    {
        return Db::getInstance()->execute(
            'DELETE FROM `'._DB_PREFIX_.'scene_products`
			WHERE `id_product` = '.(int)$this->id
        );
    }

    /**
    * Delete product indexed words
    *
    * @return array Deletion result
    */
    public function deleteSearchIndexes()
    {
        return (
            Db::getInstance()->execute(
                'DELETE `'._DB_PREFIX_.'search_index`, `'._DB_PREFIX_.'search_word`
				FROM `'._DB_PREFIX_.'search_index` JOIN `'._DB_PREFIX_.'search_word`
				WHERE `'._DB_PREFIX_.'search_index`.`id_product` = '.(int)$this->id.'
						AND `'._DB_PREFIX_.'search_word`.`id_word` = `'._DB_PREFIX_.'search_index`.id_word'
            )
        );
    }

    /**
    * Add a product attributes combinaison
    *
    * @param int $id_product_attribute Product attribute id
    * @param array $attributes Attributes to forge combinaison
    * @return array Insertion result
    * @deprecated since 1.5.0.7
    */
    public function addAttributeCombinaison($id_product_attribute, $attributes)
    {
        Tools::displayAsDeprecated();
        if (!is_array($attributes)) {
            die(Tools::displayError());
        }
        if (!count($attributes)) {
            return false;
        }

        $combination = new Combination((int)$id_product_attribute);
        return $combination->setAttributes($attributes);
    }

    /**
     * @deprecated 1.5.5.0
     * @param $id_attributes
     * @param $combinations
     * @return bool
     * @throws PrestaShopDatabaseException
     */
    public function addAttributeCombinationMultiple($id_attributes, $combinations)
    {
        Tools::displayAsDeprecated();
        $attributes_list = array();
        foreach ($id_attributes as $nb => $id_product_attribute) {
            if (isset($combinations[$nb])) {
                foreach ($combinations[$nb] as $id_attribute) {
                    $attributes_list[] = array(
                        'id_product_attribute' => (int)$id_product_attribute,
                        'id_attribute' => (int)$id_attribute,
                    );
                }
            }
        }

        return Db::getInstance()->insert('product_attribute_combination', $attributes_list);
    }


    /**
    * Delete a product attributes combination
    *
    * @param int $id_product_attribute Product attribute id
    * @return array Deletion result
    */
    public function deleteAttributeCombination($id_product_attribute)
    {
        if (!$this->id || !$id_product_attribute || !is_numeric($id_product_attribute)) {
            return false;
        }

        Hook::exec(
            'deleteProductAttribute',
            array(
                'id_product_attribute' => $id_product_attribute,
                'id_product' => $this->id,
                'deleteAllAttributes' => false
            )
        );

        $combination = new Combination($id_product_attribute);
        $res = $combination->delete();
        SpecificPriceRule::applyAllRules(array((int)$this->id));
        return $res;
    }

    /**
    * Delete features
    *
    */
    public function deleteFeatures()
    {
        // List products features
        $features = Db::getInstance()->executeS('
		SELECT p.*, f.*
		FROM `'._DB_PREFIX_.'feature_product` as p
		LEFT JOIN `'._DB_PREFIX_.'feature_value` as f ON (f.`id_feature_value` = p.`id_feature_value`)
		WHERE `id_product` = '.(int)$this->id);
        foreach ($features as $tab) {
            // Delete product custom features
            if ($tab['custom']) {
                Db::getInstance()->execute('
				DELETE FROM `'._DB_PREFIX_.'feature_value`
				WHERE `id_feature_value` = '.(int)$tab['id_feature_value']);
                Db::getInstance()->execute('
				DELETE FROM `'._DB_PREFIX_.'feature_value_lang`
				WHERE `id_feature_value` = '.(int)$tab['id_feature_value']);
            }
        }
        // Delete product features
        $result = Db::getInstance()->execute('
		DELETE FROM `'._DB_PREFIX_.'feature_product`
		WHERE `id_product` = '.(int)$this->id);

        SpecificPriceRule::applyAllRules(array((int)$this->id));
        return ($result);
    }

    /**
    * Get all available product attributes resume
    *
    * @param int $id_lang Language id
    * @return array Product attributes combinations
    */
    public function getAttributesResume($id_lang, $attribute_value_separator = ' - ', $attribute_separator = ', ')
    {
        if (!Combination::isFeatureActive()) {
            return array();
        }

        $combinations = Db::getInstance()->executeS('SELECT pa.*, product_attribute_shop.*
				FROM `'._DB_PREFIX_.'product_attribute` pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				WHERE pa.`id_product` = '.(int)$this->id.'
				GROUP BY pa.`id_product_attribute`');

        if (!$combinations) {
            return false;
        }

        $product_attributes = array();
        foreach ($combinations as $combination) {
            $product_attributes[] = (int)$combination['id_product_attribute'];
        }

        $lang = Db::getInstance()->executeS('SELECT pac.id_product_attribute, GROUP_CONCAT(agl.`name`, \''.pSQL($attribute_value_separator).'\',al.`name` ORDER BY agl.`id_attribute_group` SEPARATOR \''.pSQL($attribute_separator).'\') as attribute_designation
				FROM `'._DB_PREFIX_.'product_attribute_combination` pac
				LEFT JOIN `'._DB_PREFIX_.'attribute` a ON a.`id_attribute` = pac.`id_attribute`
				LEFT JOIN `'._DB_PREFIX_.'attribute_group` ag ON ag.`id_attribute_group` = a.`id_attribute_group`
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)$id_lang.')
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl ON (ag.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)$id_lang.')
				WHERE pac.id_product_attribute IN ('.implode(',', $product_attributes).')
				GROUP BY pac.id_product_attribute');

        foreach ($lang as $k => $row) {
            $combinations[$k]['attribute_designation'] = $row['attribute_designation'];
        }

        //Get quantity of each variations
        foreach ($combinations as $key => $row) {
            $cache_key = $row['id_product'].'_'.$row['id_product_attribute'].'_quantity';

            if (!Cache::isStored($cache_key)) {
                $result = StockAvailable::getQuantityAvailableByProduct($row['id_product'], $row['id_product_attribute']);
                Cache::store(
                    $cache_key,
                    $result
                );
                $combinations[$key]['quantity'] = $result;
            } else {
                $combinations[$key]['quantity'] = Cache::retrieve($cache_key);
            }
        }

        return $combinations;
    }

    /**
    * Get all available product attributes combinations
    *
    * @param int $id_lang Language id
    * @return array Product attributes combinations
    */
    public function getAttributeCombinations($id_lang)
    {
        if (!Combination::isFeatureActive()) {
            return array();
        }

        $sql = 'SELECT pa.*, product_attribute_shop.*, ag.`id_attribute_group`, ag.`is_color_group`, agl.`name` AS group_name, al.`name` AS attribute_name,
					a.`id_attribute`
				FROM `'._DB_PREFIX_.'product_attribute` pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON pac.`id_product_attribute` = pa.`id_product_attribute`
				LEFT JOIN `'._DB_PREFIX_.'attribute` a ON a.`id_attribute` = pac.`id_attribute`
				LEFT JOIN `'._DB_PREFIX_.'attribute_group` ag ON ag.`id_attribute_group` = a.`id_attribute_group`
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)$id_lang.')
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl ON (ag.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)$id_lang.')
				WHERE pa.`id_product` = '.(int)$this->id.'
				GROUP BY pa.`id_product_attribute`, ag.`id_attribute_group`
				ORDER BY pa.`id_product_attribute`';

        $res = Db::getInstance()->executeS($sql);

        //Get quantity of each variations
        foreach ($res as $key => $row) {
            $cache_key = $row['id_product'].'_'.$row['id_product_attribute'].'_quantity';

            if (!Cache::isStored($cache_key)) {
                Cache::store(
                    $cache_key,
                    StockAvailable::getQuantityAvailableByProduct($row['id_product'], $row['id_product_attribute'])
                );
            }

            $res[$key]['quantity'] = Cache::retrieve($cache_key);
        }

        return $res;
    }

    /**
    * Get product attribute combination by id_product_attribute
    *
    * @param int $id_product_attribute
    * @param int $id_lang Language id
    * @return array Product attribute combination by id_product_attribute
    */
    public function getAttributeCombinationsById($id_product_attribute, $id_lang)
    {
        if (!Combination::isFeatureActive()) {
            return array();
        }
        $sql = 'SELECT pa.*, product_attribute_shop.*, ag.`id_attribute_group`, ag.`is_color_group`, agl.`name` AS group_name, al.`name` AS attribute_name,
					a.`id_attribute`
				FROM `'._DB_PREFIX_.'product_attribute` pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON pac.`id_product_attribute` = pa.`id_product_attribute`
				LEFT JOIN `'._DB_PREFIX_.'attribute` a ON a.`id_attribute` = pac.`id_attribute`
				LEFT JOIN `'._DB_PREFIX_.'attribute_group` ag ON ag.`id_attribute_group` = a.`id_attribute_group`
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)$id_lang.')
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl ON (ag.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)$id_lang.')
				WHERE pa.`id_product` = '.(int)$this->id.'
				AND pa.`id_product_attribute` = '.(int)$id_product_attribute.'
				GROUP BY pa.`id_product_attribute`, ag.`id_attribute_group`
				ORDER BY pa.`id_product_attribute`';

        $res = Db::getInstance()->executeS($sql);

        //Get quantity of each variations
        foreach ($res as $key => $row) {
            $cache_key = $row['id_product'].'_'.$row['id_product_attribute'].'_quantity';

            if (!Cache::isStored($cache_key)) {
                $result = StockAvailable::getQuantityAvailableByProduct($row['id_product'], $row['id_product_attribute']);
                Cache::store(
                    $cache_key,
                    $result
                );
                $res[$key]['quantity'] = $result;
            } else {
                $res[$key]['quantity'] = Cache::retrieve($cache_key);
            }
        }

        return $res;
    }

    public function getCombinationImages($id_lang)
    {
        if (!Combination::isFeatureActive()) {
            return false;
        }

        $product_attributes = Db::getInstance()->executeS(
            'SELECT `id_product_attribute`
			FROM `'._DB_PREFIX_.'product_attribute`
			WHERE `id_product` = '.(int)$this->id
        );

        if (!$product_attributes) {
            return false;
        }

        $ids = array();

        foreach ($product_attributes as $product_attribute) {
            $ids[] = (int)$product_attribute['id_product_attribute'];
        }

        $result = Db::getInstance()->executeS('
			SELECT pai.`id_image`, pai.`id_product_attribute`, il.`legend`
			FROM `'._DB_PREFIX_.'product_attribute_image` pai
			LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (il.`id_image` = pai.`id_image`)
			LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_image` = pai.`id_image`)
			WHERE pai.`id_product_attribute` IN ('.implode(', ', $ids).') AND il.`id_lang` = '.(int)$id_lang.' ORDER by i.`position`'
        );

        if (!$result) {
            return false;
        }

        $images = array();

        foreach ($result as $row) {
            $images[$row['id_product_attribute']][] = $row;
        }

        return $images;
    }

    public static function getCombinationImageById($id_product_attribute, $id_lang)
    {
        if (!Combination::isFeatureActive() || !$id_product_attribute) {
            return false;
        }

        $result = Db::getInstance()->executeS('
			SELECT pai.`id_image`, pai.`id_product_attribute`, il.`legend`
			FROM `'._DB_PREFIX_.'product_attribute_image` pai
			LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (il.`id_image` = pai.`id_image`)
			LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_image` = pai.`id_image`)
			WHERE pai.`id_product_attribute` = '.(int)$id_product_attribute.' AND il.`id_lang` = '.(int)$id_lang.' ORDER by i.`position` LIMIT 1'
        );

        if (!$result) {
            return false;
        }

        return $result[0];
    }

    /**
    * Check if product has attributes combinations
    *
    * @return int Attributes combinations number
    */
    public function hasAttributes()
    {
        if (!Combination::isFeatureActive()) {
            return 0;
        }
        return Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT COUNT(*)
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE pa.`id_product` = '.(int)$this->id
        );
    }

    /**
    * Get new products
    *
    * @param int $id_lang Language id
    * @param int $pageNumber Start from (optional)
    * @param int $nbProducts Number of products to return (optional)
    * @return array New products
    */
    public static function getNewProducts($id_lang, $page_number = 0, $nb_products = 10, $count = false, $order_by = null, $order_way = null, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront'))) {
            $front = false;
        }

        if ($page_number < 0) {
            $page_number = 0;
        }
        if ($nb_products < 1) {
            $nb_products = 10;
        }
        if (empty($order_by) || $order_by == 'position') {
            $order_by = 'date_add';
        }
        if (empty($order_way)) {
            $order_way = 'DESC';
        }
        if ($order_by == 'id_product' || $order_by == 'price' || $order_by == 'date_add' || $order_by == 'date_upd') {
            $order_by_prefix = 'product_shop';
        } elseif ($order_by == 'name') {
            $order_by_prefix = 'pl';
        }
        if (!Validate::isOrderBy($order_by) || !Validate::isOrderWay($order_way)) {
            die(Tools::displayError());
        }

        $sql_groups = '';
        if (Group::isFeatureActive()) {
            $groups = FrontController::getCurrentCustomerGroups();
            $sql_groups = ' AND EXISTS(SELECT 1 FROM `'._DB_PREFIX_.'category_product` cp
				JOIN `'._DB_PREFIX_.'category_group` cg ON (cp.id_category = cg.id_category AND cg.`id_group` '.(count($groups) ? 'IN ('.implode(',', $groups).')' : '= 1').')
				WHERE cp.`id_product` = p.`id_product`)';
        }

        if (strpos($order_by, '.') > 0) {
            $order_by = explode('.', $order_by);
            $order_by_prefix = $order_by[0];
            $order_by = $order_by[1];
        }

        if ($count) {
            $sql = 'SELECT COUNT(p.`id_product`) AS nb
					FROM `'._DB_PREFIX_.'product` p
					'.Shop::addSqlAssociation('product', 'p').'
					WHERE product_shop.`active` = 1
					AND product_shop.`date_add` > "'.date('Y-m-d', strtotime('-'.(Configuration::get('PS_NB_DAYS_NEW_PRODUCT') ? (int)Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY')).'"
					'.($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '').'
					'.$sql_groups;
            return (int)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($sql);
        }

        $sql = new DbQuery();
        $sql->select(
            'p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) as quantity, pl.`description`, pl.`description_short`, pl.`link_rewrite`, pl.`meta_description`,
			pl.`meta_keywords`, pl.`meta_title`, pl.`name`, pl.`available_now`, pl.`available_later`, image_shop.`id_image` id_image, il.`legend`, m.`name` AS manufacturer_name,
			product_shop.`date_add` > "'.date('Y-m-d', strtotime('-'.(Configuration::get('PS_NB_DAYS_NEW_PRODUCT') ? (int)Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY')).'" as new'
        );

        $sql->from('product', 'p');
        $sql->join(Shop::addSqlAssociation('product', 'p'));
        $sql->leftJoin('product_lang', 'pl', '
			p.`id_product` = pl.`id_product`
			AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl')
        );
        $sql->leftJoin('image_shop', 'image_shop', 'image_shop.`id_product` = p.`id_product` AND image_shop.cover=1 AND image_shop.id_shop='.(int)$context->shop->id);
        $sql->leftJoin('image_lang', 'il', 'image_shop.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang);
        $sql->leftJoin('manufacturer', 'm', 'm.`id_manufacturer` = p.`id_manufacturer`');

        $sql->where('product_shop.`active` = 1');
        if ($front) {
            $sql->where('product_shop.`visibility` IN ("both", "catalog")');
        }
        $sql->where('product_shop.`date_add` > "'.date('Y-m-d', strtotime('-'.(Configuration::get('PS_NB_DAYS_NEW_PRODUCT') ? (int)Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY')).'"');
        if (Group::isFeatureActive()) {
            $groups = FrontController::getCurrentCustomerGroups();
            $sql->where('EXISTS(SELECT 1 FROM `'._DB_PREFIX_.'category_product` cp
				JOIN `'._DB_PREFIX_.'category_group` cg ON (cp.id_category = cg.id_category AND cg.`id_group` '.(count($groups) ? 'IN ('.implode(',', $groups).')' : '= 1').')
				WHERE cp.`id_product` = p.`id_product`)');
        }

        $sql->orderBy((isset($order_by_prefix) ? pSQL($order_by_prefix).'.' : '').'`'.pSQL($order_by).'` '.pSQL($order_way));
        $sql->limit($nb_products, $page_number * $nb_products);

        if (Combination::isFeatureActive()) {
            $sql->select('product_attribute_shop.minimal_quantity AS product_attribute_minimal_quantity, IFNULL(product_attribute_shop.id_product_attribute,0) id_product_attribute');
            $sql->leftJoin('product_attribute_shop', 'product_attribute_shop', 'p.`id_product` = product_attribute_shop.`id_product` AND product_attribute_shop.`default_on` = 1 AND product_attribute_shop.id_shop='.(int)$context->shop->id);
        }
        $sql->join(Product::sqlStock('p', 0));

        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);

        if (!$result) {
            return false;
        }

        if ($order_by == 'price') {
            Tools::orderbyPrice($result, $order_way);
        }

        $products_ids = array();
        foreach ($result as $row) {
            $products_ids[] = $row['id_product'];
        }
        // Thus you can avoid one query per product, because there will be only one query for all the products of the cart
        Product::cacheFrontFeatures($products_ids, $id_lang);
        return Product::getProductsProperties((int)$id_lang, $result);
    }

    protected static function _getProductIdByDate($beginning, $ending, Context $context = null, $with_combination = false)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $id_address = $context->cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')};
        $ids = Address::getCountryAndState($id_address);
        $id_country = $ids['id_country'] ? (int)$ids['id_country'] : (int)Configuration::get('PS_COUNTRY_DEFAULT');

        return SpecificPrice::getProductIdByDate(
            $context->shop->id,
            $context->currency->id,
            $id_country,
            $context->customer->id_default_group,
            $beginning,
            $ending,
            0,
            $with_combination
        );
    }

    /**
    * Get a random special
    *
    * @param int $id_lang Language id
    * @return array Special
    */
    public static function getRandomSpecial($id_lang, $beginning = false, $ending = false, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront'))) {
            $front = false;
        }

        $current_date = date('Y-m-d H:i:00');
        $product_reductions = Product::_getProductIdByDate((!$beginning ? $current_date : $beginning), (!$ending ? $current_date : $ending), $context, true);

        if ($product_reductions) {
            $ids_products = '';
            foreach ($product_reductions as $product_reduction) {
                $ids_products .= '('.(int)$product_reduction['id_product'].','.($product_reduction['id_product_attribute'] ? (int)$product_reduction['id_product_attribute'] :'0').'),';
            }

            $ids_products = rtrim($ids_products, ',');
            Db::getInstance()->execute('CREATE TEMPORARY TABLE `'._DB_PREFIX_.'product_reductions` (id_product INT UNSIGNED NOT NULL DEFAULT 0, id_product_attribute INT UNSIGNED NOT NULL DEFAULT 0) ENGINE=MEMORY', false);
            if ($ids_products) {
                Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'product_reductions` VALUES '.$ids_products, false);
            }

            $groups = FrontController::getCurrentCustomerGroups();
            $sql_groups = ' AND EXISTS(SELECT 1 FROM `'._DB_PREFIX_.'category_product` cp
				JOIN `'._DB_PREFIX_.'category_group` cg ON (cp.id_category = cg.id_category AND cg.`id_group` '.(count($groups) ? 'IN ('.implode(',', $groups).')' : '= 1').')
				WHERE cp.`id_product` = p.`id_product`)';

            // Please keep 2 distinct queries because RAND() is an awful way to achieve this result
            $sql = 'SELECT product_shop.id_product, IFNULL(product_attribute_shop.id_product_attribute,0) id_product_attribute
					FROM
					`'._DB_PREFIX_.'product_reductions` pr,
					`'._DB_PREFIX_.'product` p
					'.Shop::addSqlAssociation('product', 'p').'
					LEFT JOIN `'._DB_PREFIX_.'product_attribute_shop` product_attribute_shop
				   		ON (p.`id_product` = product_attribute_shop.`id_product` AND product_attribute_shop.`default_on` = 1 AND product_attribute_shop.id_shop='.(int)$context->shop->id.')
					WHERE p.id_product=pr.id_product AND (pr.id_product_attribute = 0 OR product_attribute_shop.id_product_attribute = pr.id_product_attribute) AND product_shop.`active` = 1
						'.$sql_groups.'
					'.($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '').'
					ORDER BY RAND()';

            $result = Db::getInstance()->getRow($sql);

            Db::getInstance()->execute('DROP TEMPORARY TABLE `'._DB_PREFIX_.'product_reductions`', false);

            if (!$id_product = $result['id_product']) {
                return false;
            }

            // no group by needed : there's only one attribute with cover=1 for a given id_product + shop
            $sql = 'SELECT p.*, product_shop.*, stock.`out_of_stock` out_of_stock, pl.`description`, pl.`description_short`,
						pl.`link_rewrite`, pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`, pl.`name`, pl.`available_now`, pl.`available_later`,
						p.`ean13`, p.`upc`, image_shop.`id_image` id_image, il.`legend`,
						DATEDIFF(product_shop.`date_add`, DATE_SUB("'.date('Y-m-d').' 00:00:00",
						INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).'
							DAY)) > 0 AS new
					FROM `'._DB_PREFIX_.'product` p
					LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (
						p.`id_product` = pl.`id_product`
						AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').'
					)
					'.Shop::addSqlAssociation('product', 'p').'
					LEFT JOIN `'._DB_PREFIX_.'image_shop` image_shop
						ON (image_shop.`id_product` = p.`id_product` AND image_shop.cover=1 AND image_shop.id_shop='.(int)$context->shop->id.')
					LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (image_shop.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang.')
					'.Product::sqlStock('p', 0).'
					WHERE p.id_product = '.(int)$id_product;

            $row = Db::getInstance(_PS_USE_SQL_SLAVE_)->getRow($sql);
            if (!$row) {
                return false;
            }

            $row['id_product_attribute'] = (int)$result['id_product_attribute'];
            return Product::getProductProperties($id_lang, $row);
        } else {
            return false;
        }
    }

    /**
    * Get prices drop
    *
    * @param int $id_lang Language id
    * @param int $pageNumber Start from (optional)
    * @param int $nbProducts Number of products to return (optional)
    * @param bool $count Only in order to get total number (optional)
    * @return array Prices drop
    */
    public static function getPricesDrop($id_lang, $page_number = 0, $nb_products = 10, $count = false,
        $order_by = null, $order_way = null, $beginning = false, $ending = false, Context $context = null)
    {
        if (!Validate::isBool($count)) {
            die(Tools::displayError());
        }

        if (!$context) {
            $context = Context::getContext();
        }
        if ($page_number < 0) {
            $page_number = 0;
        }
        if ($nb_products < 1) {
            $nb_products = 10;
        }
        if (empty($order_by) || $order_by == 'position') {
            $order_by = 'price';
        }
        if (empty($order_way)) {
            $order_way = 'DESC';
        }
        if ($order_by == 'id_product' || $order_by == 'price' || $order_by == 'date_add' || $order_by == 'date_upd') {
            $order_by_prefix = 'product_shop';
        } elseif ($order_by == 'name') {
            $order_by_prefix = 'pl';
        }
        if (!Validate::isOrderBy($order_by) || !Validate::isOrderWay($order_way)) {
            die(Tools::displayError());
        }
        $current_date = date('Y-m-d H:i:00');
        $ids_product = Product::_getProductIdByDate((!$beginning ? $current_date : $beginning), (!$ending ? $current_date : $ending), $context);

        $tab_id_product = array();
        foreach ($ids_product as $product) {
            if (is_array($product)) {
                $tab_id_product[] = (int)$product['id_product'];
            } else {
                $tab_id_product[] = (int)$product;
            }
        }

        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront'))) {
            $front = false;
        }

        $sql_groups = '';
        if (Group::isFeatureActive()) {
            $groups = FrontController::getCurrentCustomerGroups();
            $sql_groups = ' AND EXISTS(SELECT 1 FROM `'._DB_PREFIX_.'category_product` cp
				JOIN `'._DB_PREFIX_.'category_group` cg ON (cp.id_category = cg.id_category AND cg.`id_group` '.(count($groups) ? 'IN ('.implode(',', $groups).')' : '= 1').')
				WHERE cp.`id_product` = p.`id_product`)';
        }

        if ($count) {
            return Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT COUNT(DISTINCT p.`id_product`)
			FROM `'._DB_PREFIX_.'product` p
			'.Shop::addSqlAssociation('product', 'p').'
			WHERE product_shop.`active` = 1
			AND product_shop.`show_price` = 1
			'.($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '').'
			'.((!$beginning && !$ending) ? 'AND p.`id_product` IN('.((is_array($tab_id_product) && count($tab_id_product)) ? implode(', ', $tab_id_product) : 0).')' : '').'
			'.$sql_groups);
        }

        if (strpos($order_by, '.') > 0) {
            $order_by = explode('.', $order_by);
            $order_by = pSQL($order_by[0]).'.`'.pSQL($order_by[1]).'`';
        }

        $sql = '
		SELECT
			p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) as quantity, pl.`description`, pl.`description_short`, pl.`available_now`, pl.`available_later`,
			IFNULL(product_attribute_shop.id_product_attribute, 0) id_product_attribute,
			pl.`link_rewrite`, pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`,
			pl.`name`, image_shop.`id_image` id_image, il.`legend`, m.`name` AS manufacturer_name,
			DATEDIFF(
				p.`date_add`,
				DATE_SUB(
					"'.date('Y-m-d').' 00:00:00",
					INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY
				)
			) > 0 AS new
		FROM `'._DB_PREFIX_.'product` p
		'.Shop::addSqlAssociation('product', 'p').'
		LEFT JOIN `'._DB_PREFIX_.'product_attribute_shop` product_attribute_shop
			ON (p.`id_product` = product_attribute_shop.`id_product` AND product_attribute_shop.`default_on` = 1 AND product_attribute_shop.id_shop='.(int)$context->shop->id.')
		'.Product::sqlStock('p', 0, false, $context->shop).'
		LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (
			p.`id_product` = pl.`id_product`
			AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').'
		)
		LEFT JOIN `'._DB_PREFIX_.'image_shop` image_shop
			ON (image_shop.`id_product` = p.`id_product` AND image_shop.cover=1 AND image_shop.id_shop='.(int)$context->shop->id.')
		LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (image_shop.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang.')
		LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON (m.`id_manufacturer` = p.`id_manufacturer`)
		WHERE product_shop.`active` = 1
		AND product_shop.`show_price` = 1
		'.($front ? ' AND p.`visibility` IN ("both", "catalog")' : '').'
		'.((!$beginning && !$ending) ? ' AND p.`id_product` IN ('.((is_array($tab_id_product) && count($tab_id_product)) ? implode(', ', $tab_id_product) : 0).')' : '').'
		'.$sql_groups.'
		ORDER BY '.(isset($order_by_prefix) ? pSQL($order_by_prefix).'.' : '').pSQL($order_by).' '.pSQL($order_way).'
		LIMIT '.(int)($page_number * $nb_products).', '.(int)$nb_products;

        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);

        if (!$result) {
            return false;
        }

        if ($order_by == 'price') {
            Tools::orderbyPrice($result, $order_way);
        }

        return Product::getProductsProperties($id_lang, $result);
    }


    /**
     * getProductCategories return an array of categories which this product belongs to
     *
     * @return array of categories
     */
    public static function getProductCategories($id_product = '')
    {
        $cache_id = 'Product::getProductCategories_'.(int)$id_product;
        if (!Cache::isStored($cache_id)) {
            $ret = array();

            $row = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
				SELECT `id_category` FROM `'._DB_PREFIX_.'category_product`
				WHERE `id_product` = '.(int)$id_product
            );

            if ($row) {
                foreach ($row as $val) {
                    $ret[] = $val['id_category'];
                }
            }
            Cache::store($cache_id, $ret);
            return $ret;
        }
        return Cache::retrieve($cache_id);
    }

    public static function getProductCategoriesFull($id_product = '', $id_lang = null)
    {
        if (!$id_lang) {
            $id_lang = Context::getContext()->language->id;
        }

        $ret = array();
        $row = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
			SELECT cp.`id_category`, cl.`name`, cl.`link_rewrite` FROM `'._DB_PREFIX_.'category_product` cp
			LEFT JOIN `'._DB_PREFIX_.'category` c ON (c.id_category = cp.id_category)
			LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (cp.`id_category` = cl.`id_category`'.Shop::addSqlRestrictionOnLang('cl').')
			'.Shop::addSqlAssociation('category', 'c').'
			WHERE cp.`id_product` = '.(int)$id_product.'
				AND cl.`id_lang` = '.(int)$id_lang
        );

        foreach ($row as $val) {
            $ret[$val['id_category']] = $val;
        }

        return $ret;
    }

    /**
     * getCategories return an array of categories which this product belongs to
     *
     * @return array of categories
     */
    public function getCategories()
    {
        return Product::getProductCategories($this->id);
    }

    /**
     * Gets carriers assigned to the product
     */
    public function getCarriers()
    {
        return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
			SELECT c.*
			FROM `'._DB_PREFIX_.'product_carrier` pc
			INNER JOIN `'._DB_PREFIX_.'carrier` c
				ON (c.`id_reference` = pc.`id_carrier_reference` AND c.`deleted` = 0)
			WHERE pc.`id_product` = '.(int)$this->id.'
				AND pc.`id_shop` = '.(int)$this->id_shop);
    }

    /**
     * Sets carriers assigned to the product
     */
    public function setCarriers($carrier_list)
    {
        $data = array();

        foreach ($carrier_list as $carrier) {
            $data[] = array(
                'id_product' => (int)$this->id,
                'id_carrier_reference' => (int)$carrier,
                'id_shop' => (int)$this->id_shop
            );
        }
        Db::getInstance()->execute(
            'DELETE FROM `'._DB_PREFIX_.'product_carrier`
			WHERE id_product = '.(int)$this->id.'
			AND id_shop = '.(int)$this->id_shop
        );

        $unique_array = array();
        foreach ($data as $sub_array) {
            if (!in_array($sub_array, $unique_array)) {
                $unique_array[] = $sub_array;
            }
        }

        if (count($unique_array)) {
            Db::getInstance()->insert('product_carrier', $unique_array, false, true, Db::INSERT_IGNORE);
        }
    }

    /**
    * Get product images and legends
    *
    * @param int $id_lang Language id for multilingual legends
    * @return array Product images and legends
    */
    public function getImages($id_lang, Context $context = null)
    {
        return Db::getInstance()->executeS('
			SELECT image_shop.`cover`, i.`id_image`, il.`legend`, i.`position`
			FROM `'._DB_PREFIX_.'image` i
			'.Shop::addSqlAssociation('image', 'i').'
			LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang.')
			WHERE i.`id_product` = '.(int)$this->id.'
			ORDER BY `position`'
        );
    }

    /**
    * Get product cover image
    *
    * @return array Product cover image
    */
    public static function getCover($id_product, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }
        $cache_id = 'Product::getCover_'.(int)$id_product.'-'.(int)$context->shop->id;
        if (!Cache::isStored($cache_id)) {
            $sql = 'SELECT image_shop.`id_image`
					FROM `'._DB_PREFIX_.'image` i
					'.Shop::addSqlAssociation('image', 'i').'
					WHERE i.`id_product` = '.(int)$id_product.'
					AND image_shop.`cover` = 1';
            $result = Db::getInstance()->getRow($sql);
            Cache::store($cache_id, $result);
            return $result;
        }
        return Cache::retrieve($cache_id);
    }

    /**
     * Returns product price
     *
     * @param int      $id_product            Product id
     * @param bool     $usetax                With taxes or not (optional)
     * @param int|null $id_product_attribute  Product attribute id (optional).
     *                                        If set to false, do not apply the combination price impact.
     *                                        NULL does apply the default combination price impact.
     * @param int      $decimals              Number of decimals (optional)
     * @param int|null $divisor               Useful when paying many time without fees (optional)
     * @param bool     $only_reduc            Returns only the reduction amount
     * @param bool     $usereduc              Set if the returned amount will include reduction
     * @param int      $quantity              Required for quantity discount application (default value: 1)
     * @param bool     $force_associated_tax  DEPRECATED - NOT USED Force to apply the associated tax.
     *                                        Only works when the parameter $usetax is true
     * @param int|null $id_customer           Customer ID (for customer group reduction)
     * @param int|null $id_cart               Cart ID. Required when the cookie is not accessible
     *                                        (e.g., inside a payment module, a cron task...)
     * @param int|null $id_address            Customer address ID. Required for price (tax included)
     *                                        calculation regarding the guest localization
     * @param null     $specific_price_output If a specific price applies regarding the previous parameters,
     *                                        this variable is filled with the corresponding SpecificPrice object
     * @param bool     $with_ecotax           Insert ecotax in price output.
     * @param bool     $use_group_reduction
     * @param Context  $context
     * @param bool     $use_customer_price
     * @return float                          Product price
     */
    public static function getPriceStatic($id_product, $usetax = true, $id_product_attribute = null, $decimals = 6, $divisor = null,
        $only_reduc = false, $usereduc = true, $quantity = 1, $force_associated_tax = false, $id_customer = null, $id_cart = null,
        $id_address = null, &$specific_price_output = null, $with_ecotax = true, $use_group_reduction = true, Context $context = null,
        $use_customer_price = true)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $cur_cart = $context->cart;

        if ($divisor !== null) {
            Tools::displayParameterAsDeprecated('divisor');
        }

        if (!Validate::isBool($usetax) || !Validate::isUnsignedId($id_product)) {
            die(Tools::displayError());
        }

        // Initializations
        $id_group = null;
        if ($id_customer) {
            $id_group = Customer::getDefaultGroupId((int)$id_customer);
        }
        if (!$id_group) {
            $id_group = (int)Group::getCurrent()->id;
        }

        // If there is cart in context or if the specified id_cart is different from the context cart id
        if (!is_object($cur_cart) || (Validate::isUnsignedInt($id_cart) && $id_cart && $cur_cart->id != $id_cart)) {
            /*
            * When a user (e.g., guest, customer, Google...) is on PrestaShop, he has already its cart as the global (see /init.php)
            * When a non-user calls directly this method (e.g., payment module...) is on PrestaShop, he does not have already it BUT knows the cart ID
            * When called from the back office, cart ID can be inexistant
            */
            if (!$id_cart && !isset($context->employee)) {
                die(Tools::displayError());
            }
            $cur_cart = new Cart($id_cart);
            // Store cart in context to avoid multiple instantiations in BO
            if (!Validate::isLoadedObject($context->cart)) {
                $context->cart = $cur_cart;
            }
        }

        $cart_quantity = 0;
        if ((int)$id_cart) {
            $cache_id = 'Product::getPriceStatic_'.(int)$id_product.'-'.(int)$id_cart;
            if (!Cache::isStored($cache_id) || ($cart_quantity = Cache::retrieve($cache_id) != (int)$quantity)) {
                $sql = 'SELECT SUM(`quantity`)
				FROM `'._DB_PREFIX_.'cart_product`
				WHERE `id_product` = '.(int)$id_product.'
				AND `id_cart` = '.(int)$id_cart;
                $cart_quantity = (int)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($sql);
                Cache::store($cache_id, $cart_quantity);
            } else {
                $cart_quantity = Cache::retrieve($cache_id);
            }
        }

        $id_currency = Validate::isLoadedObject($context->currency) ? (int)$context->currency->id : (int)Configuration::get('PS_CURRENCY_DEFAULT');

        // retrieve address informations
        $id_country = (int)$context->country->id;
        $id_state = 0;
        $zipcode = 0;

        if (!$id_address && Validate::isLoadedObject($cur_cart)) {
            $id_address = $cur_cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')};
        }

        if ($id_address) {
            $address_infos = Address::getCountryAndState($id_address);
            if ($address_infos['id_country']) {
                $id_country = (int)$address_infos['id_country'];
                $id_state = (int)$address_infos['id_state'];
                $zipcode = $address_infos['postcode'];
            }
        } elseif (isset($context->customer->geoloc_id_country)) {
            $id_country = (int)$context->customer->geoloc_id_country;
            $id_state = (int)$context->customer->id_state;
            $zipcode = $context->customer->postcode;
        }

        if (Tax::excludeTaxeOption()) {
            $usetax = false;
        }

        if ($usetax != false
            && !empty($address_infos['vat_number'])
            && $address_infos['id_country'] != Configuration::get('VATNUMBER_COUNTRY')
            && Configuration::get('VATNUMBER_MANAGEMENT')) {
            $usetax = false;
        }

        if (is_null($id_customer) && Validate::isLoadedObject($context->customer)) {
            $id_customer = $context->customer->id;
        }

        $return = Product::priceCalculation(
            $context->shop->id,
            $id_product,
            $id_product_attribute,
            $id_country,
            $id_state,
            $zipcode,
            $id_currency,
            $id_group,
            $quantity,
            $usetax,
            $decimals,
            $only_reduc,
            $usereduc,
            $with_ecotax,
            $specific_price_output,
            $use_group_reduction,
            $id_customer,
            $use_customer_price,
            $id_cart,
            $cart_quantity
        );

        return $return;
    }

    /**
     * Price calculation / Get product price
     *
     * @param int    $id_shop Shop id
     * @param int    $id_product Product id
     * @param int    $id_product_attribute Product attribute id
     * @param int    $id_country Country id
     * @param int    $id_state State id
     * @param string $zipcode
     * @param int    $id_currency Currency id
     * @param int    $id_group Group id
     * @param int    $quantity Quantity Required for Specific prices : quantity discount application
     * @param bool   $use_tax with (1) or without (0) tax
     * @param int    $decimals Number of decimals returned
     * @param bool   $only_reduc Returns only the reduction amount
     * @param bool   $use_reduc Set if the returned amount will include reduction
     * @param bool   $with_ecotax insert ecotax in price output.
     * @param null   $specific_price If a specific price applies regarding the previous parameters,
     *                               this variable is filled with the corresponding SpecificPrice object
     * @param bool   $use_group_reduction
     * @param int    $id_customer
     * @param bool   $use_customer_price
     * @param int    $id_cart
     * @param int    $real_quantity
     * @return float Product price
     **/
    public static function priceCalculation($id_shop, $id_product, $id_product_attribute, $id_country, $id_state, $zipcode, $id_currency,
        $id_group, $quantity, $use_tax, $decimals, $only_reduc, $use_reduc, $with_ecotax, &$specific_price, $use_group_reduction,
        $id_customer = 0, $use_customer_price = true, $id_cart = 0, $real_quantity = 0)
    {
        static $address = null;
        static $context = null;

        if ($address === null) {
            $address = new Address();
        }

        if ($context == null) {
            $context = Context::getContext()->cloneContext();
        }

        if ($id_shop !== null && $context->shop->id != (int)$id_shop) {
            $context->shop = new Shop((int)$id_shop);
        }

        if (!$use_customer_price) {
            $id_customer = 0;
        }

        if ($id_product_attribute === null) {
            $id_product_attribute = Product::getDefaultAttribute($id_product);
        }

        $cache_id = (int)$id_product.'-'.(int)$id_shop.'-'.(int)$id_currency.'-'.(int)$id_country.'-'.$id_state.'-'.$zipcode.'-'.(int)$id_group.
            '-'.(int)$quantity.'-'.(int)$id_product_attribute.
            '-'.(int)$with_ecotax.'-'.(int)$id_customer.'-'.(int)$use_group_reduction.'-'.(int)$id_cart.'-'.(int)$real_quantity.
            '-'.($only_reduc?'1':'0').'-'.($use_reduc?'1':'0').'-'.($use_tax?'1':'0').'-'.(int)$decimals;

        // reference parameter is filled before any returns
        $specific_price = SpecificPrice::getSpecificPrice(
            (int)$id_product,
            $id_shop,
            $id_currency,
            $id_country,
            $id_group,
            $quantity,
            $id_product_attribute,
            $id_customer,
            $id_cart,
            $real_quantity
        );

        if (isset(self::$_prices[$cache_id])) {
            return self::$_prices[$cache_id];
        }

        // fetch price & attribute price
        $cache_id_2 = $id_product.'-'.$id_shop;
        if (!isset(self::$_pricesLevel2[$cache_id_2])) {
            $sql = new DbQuery();
            $sql->select('product_shop.`price`, product_shop.`ecotax`');
            $sql->from('product', 'p');
            $sql->innerJoin('product_shop', 'product_shop', '(product_shop.id_product=p.id_product AND product_shop.id_shop = '.(int)$id_shop.')');
            $sql->where('p.`id_product` = '.(int)$id_product);
            if (Combination::isFeatureActive()) {
                $sql->select('IFNULL(product_attribute_shop.id_product_attribute,0) id_product_attribute, product_attribute_shop.`price` AS attribute_price, product_attribute_shop.default_on');
                $sql->leftJoin('product_attribute_shop', 'product_attribute_shop', '(product_attribute_shop.id_product = p.id_product AND product_attribute_shop.id_shop = '.(int)$id_shop.')');
            } else {
                $sql->select('0 as id_product_attribute');
            }

            $res = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);

            if (is_array($res) && count($res)) {
                foreach ($res as $row) {
                    $array_tmp = array(
                        'price' => $row['price'],
                        'ecotax' => $row['ecotax'],
                        'attribute_price' => (isset($row['attribute_price']) ? $row['attribute_price'] : null)
                    );
                    self::$_pricesLevel2[$cache_id_2][(int)$row['id_product_attribute']] = $array_tmp;

                    if (isset($row['default_on']) && $row['default_on'] == 1) {
                        self::$_pricesLevel2[$cache_id_2][0] = $array_tmp;
                    }
                }
            }
        }

        if (!isset(self::$_pricesLevel2[$cache_id_2][(int)$id_product_attribute])) {
            return;
        }

        $result = self::$_pricesLevel2[$cache_id_2][(int)$id_product_attribute];

        if (!$specific_price || $specific_price['price'] < 0) {
            $price = (float)$result['price'];
        } else {
            $price = (float)$specific_price['price'];
        }
        // convert only if the specific price is in the default currency (id_currency = 0)
        if (!$specific_price || !($specific_price['price'] >= 0 && $specific_price['id_currency'])) {
            $price = Tools::convertPrice($price, $id_currency);
        }

        // Attribute price
        if (is_array($result) && (!$specific_price || !$specific_price['id_product_attribute'] || $specific_price['price'] < 0)) {
            $attribute_price = Tools::convertPrice($result['attribute_price'] !== null ? (float)$result['attribute_price'] : 0, $id_currency);
            // If you want the default combination, please use NULL value instead
            if ($id_product_attribute !== false) {
                $price += $attribute_price;
            }
        }

        // Tax
        $address->id_country = $id_country;
        $address->id_state = $id_state;
        $address->postcode = $zipcode;

        $tax_manager = TaxManagerFactory::getManager($address, Product::getIdTaxRulesGroupByIdProduct((int)$id_product, $context));
        $product_tax_calculator = $tax_manager->getTaxCalculator();

        // Add Tax
        if ($use_tax) {
            $price = $product_tax_calculator->addTaxes($price);
        }

        // Eco Tax
        if (($result['ecotax'] || isset($result['attribute_ecotax'])) && $with_ecotax) {
            $ecotax = $result['ecotax'];
            if (isset($result['attribute_ecotax']) && $result['attribute_ecotax'] > 0) {
                $ecotax = $result['attribute_ecotax'];
            }

            if ($id_currency) {
                $ecotax = Tools::convertPrice($ecotax, $id_currency);
            }
            if ($use_tax) {
                // reinit the tax manager for ecotax handling
                $tax_manager = TaxManagerFactory::getManager(
                    $address,
                    (int)Configuration::get('PS_ECOTAX_TAX_RULES_GROUP_ID')
                );
                $ecotax_tax_calculator = $tax_manager->getTaxCalculator();
                $price += $ecotax_tax_calculator->addTaxes($ecotax);
            } else {
                $price += $ecotax;
            }
        }

        // Reduction
        $specific_price_reduction = 0;
        if (($only_reduc || $use_reduc) && $specific_price) {
            if ($specific_price['reduction_type'] == 'amount') {
                $reduction_amount = $specific_price['reduction'];

                if (!$specific_price['id_currency']) {
                    $reduction_amount = Tools::convertPrice($reduction_amount, $id_currency);
                }

                $specific_price_reduction = $reduction_amount;

                    // Adjust taxes if required

                    if (!$use_tax && $specific_price['reduction_tax']) {
                        $specific_price_reduction = $product_tax_calculator->removeTaxes($specific_price_reduction);
                    }
                if ($use_tax && !$specific_price['reduction_tax']) {
                    $specific_price_reduction = $product_tax_calculator->addTaxes($specific_price_reduction);
                }
            } else {
                $specific_price_reduction = $price * $specific_price['reduction'];
            }
        }

        if ($use_reduc) {
            $price -= $specific_price_reduction;
        }

        // Group reduction
        if ($use_group_reduction) {
            $reduction_from_category = GroupReduction::getValueForProduct($id_product, $id_group);
            if ($reduction_from_category !== false) {
                $group_reduction = $price * (float)$reduction_from_category;
            } else { // apply group reduction if there is no group reduction for this category
                $group_reduction = (($reduc = Group::getReductionByIdGroup($id_group)) != 0) ? ($price * $reduc / 100) : 0;
            }

            $price -= $group_reduction;
        }

        if ($only_reduc) {
            return Tools::ps_round($specific_price_reduction, $decimals);
        }

        $price = Tools::ps_round($price, $decimals);

        if ($price < 0) {
            $price = 0;
        }

        self::$_prices[$cache_id] = $price;
        return self::$_prices[$cache_id];
    }

    public static function convertAndFormatPrice($price, $currency = false, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }
        if (!$currency) {
            $currency = $context->currency;
        }
        return Tools::displayPrice(Tools::convertPrice($price, $currency), $currency);
    }

    public static function isDiscounted($id_product, $quantity = 1, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $id_group = $context->customer->id_default_group;
        $cart_quantity = !$context->cart ? 0 : Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT SUM(`quantity`)
			FROM `'._DB_PREFIX_.'cart_product`
			WHERE `id_product` = '.(int)$id_product.' AND `id_cart` = '.(int)$context->cart->id
        );
        $quantity = $cart_quantity ? $cart_quantity : $quantity;

        $id_currency = (int)$context->currency->id;
        $ids = Address::getCountryAndState((int)$context->cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')});
        $id_country = $ids['id_country'] ? (int)$ids['id_country'] : (int)Configuration::get('PS_COUNTRY_DEFAULT');
        return (bool)SpecificPrice::getSpecificPrice((int)$id_product, $context->shop->id, $id_currency, $id_country, $id_group, $quantity, null, 0, 0, $quantity);
    }

    /**
    * Get product price
    * Same as static function getPriceStatic, no need to specify product id
    *
    * @param bool $tax With taxes or not (optional)
    * @param int $id_product_attribute Product attribute id (optional)
    * @param int $decimals Number of decimals (optional)
    * @param int $divisor Util when paying many time without fees (optional)
    * @return float Product price in euros
    */
    public function getPrice($tax = true, $id_product_attribute = null, $decimals = 6,
        $divisor = null, $only_reduc = false, $usereduc = true, $quantity = 1)
    {
        return Product::getPriceStatic((int)$this->id, $tax, $id_product_attribute, $decimals, $divisor, $only_reduc, $usereduc, $quantity);
    }

    public function getPublicPrice($tax = true, $id_product_attribute = null, $decimals = 6,
            $divisor = null, $only_reduc = false, $usereduc = true, $quantity = 1)
    {
        return Product::getPriceStatic((int)$this->id, $tax, $id_product_attribute, $decimals, $divisor, $only_reduc, $usereduc, $quantity,
            false, null, null, null, null, true, true, null, false);
    }

    public function getIdProductAttributeMostExpensive()
    {
        if (!Combination::isFeatureActive()) {
            return 0;
        }

        return (int)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
		SELECT pa.`id_product_attribute`
		FROM `'._DB_PREFIX_.'product_attribute` pa
		'.Shop::addSqlAssociation('product_attribute', 'pa').'
		WHERE pa.`id_product` = '.(int)$this->id.'
		ORDER BY product_attribute_shop.`price` DESC');
    }

    public function getDefaultIdProductAttribute()
    {
        if (!Combination::isFeatureActive()) {
            return 0;
        }

        return (int)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT pa.`id_product_attribute`
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE pa.`id_product` = '.(int)$this->id.'
			AND product_attribute_shop.default_on = 1'
        );
    }

    public function getPriceWithoutReduct($notax = false, $id_product_attribute = false, $decimals = 6)
    {
        return Product::getPriceStatic((int)$this->id, !$notax, $id_product_attribute, $decimals, null, false, false);
    }

    /**
    * Display price with right format and currency
    *
    * @param array $params Params
    * @param $smarty Smarty object
    * @return string Price with right format and currency
    */
    public static function convertPrice($params, &$smarty)
    {
        return Tools::displayPrice($params['price'], Context::getContext()->currency);
    }

    /**
     * Convert price with currency
     *
     * @param array $params
     * @param object $smarty DEPRECATED
     * @return string Ambigous <string, mixed, Ambigous <number, string>>
     */
    public static function convertPriceWithCurrency($params, &$smarty)
    {
        return Tools::displayPrice($params['price'], $params['currency'], false);
    }

    public static function displayWtPrice($params, &$smarty)
    {
        return Tools::displayPrice($params['p'], Context::getContext()->currency);
    }

    /**
     * Display WT price with currency
     *
     * @param array $params
     * @param Smarty $smarty DEPRECATED
     * @return string Ambigous <string, mixed, Ambigous <number, string>>
     */
    public static function displayWtPriceWithCurrency($params, &$smarty)
    {
        return Tools::displayPrice($params['price'], $params['currency'], false);
    }

    /**
    * Get available product quantities
    *
    * @param int $id_product Product id
    * @param int $id_product_attribute Product attribute id (optional)
    * @return int Available quantities
    */
    public static function getQuantity($id_product, $id_product_attribute = null, $cache_is_pack = null)
    {
        if ((int)$cache_is_pack || ($cache_is_pack === null && Pack::isPack((int)$id_product))) {
            if (!Pack::isInStock((int)$id_product)) {
                return 0;
            }
        }

        // @since 1.5.0
        return (StockAvailable::getQuantityAvailableByProduct($id_product, $id_product_attribute));
    }

    /**
     * Create JOIN query with 'stock_available' table
     *
     * @param string $productAlias Alias of product table
     * @param string|int $productAttribute If string : alias of PA table ; if int : value of PA ; if null : nothing about PA
     * @param bool $innerJoin LEFT JOIN or INNER JOIN
     * @param Shop $shop
     * @return string
     */
    public static function sqlStock($product_alias, $product_attribute = null, $inner_join = false, Shop $shop = null)
    {
        $id_shop = ($shop !== null ? (int)$shop->id : null);
        $sql = (($inner_join) ? ' INNER ' : ' LEFT ')
            .'JOIN '._DB_PREFIX_.'stock_available stock
			ON (stock.id_product = '.pSQL($product_alias).'.id_product';

        if (!is_null($product_attribute)) {
            if (!Combination::isFeatureActive()) {
                $sql .= ' AND stock.id_product_attribute = 0';
            } elseif (is_numeric($product_attribute)) {
                $sql .= ' AND stock.id_product_attribute = '.$product_attribute;
            } elseif (is_string($product_attribute)) {
                $sql .= ' AND stock.id_product_attribute = IFNULL(`'.bqSQL($product_attribute).'`.id_product_attribute, 0)';
            }
        }

        $sql .= StockAvailable::addSqlShopRestriction(null, $id_shop, 'stock').' )';

        return $sql;
    }

    /**
     * @deprecated since 1.5.0
     *
     * It's not possible to use this method with new stockManager and stockAvailable features
     * Now this method do nothing
     *
     * @see StockManager if you want to manage real stock
     * @see StockAvailable if you want to manage available quantities for sale on your shop(s)
     *
     * @deprecated 1.5.3.0
     * @return false
     */
    public static function updateQuantity()
    {
        Tools::displayAsDeprecated();

        return false;
    }

    /**
     * @deprecated since 1.5.0
     *
     * It's not possible to use this method with new stockManager and stockAvailable features
     * Now this method do nothing
     *
     * @deprecated 1.5.3.0
     * @see StockManager if you want to manage real stock
     * @see StockAvailable if you want to manage available quantities for sale on your shop(s)
     * @return false
     */
    public static function reinjectQuantities()
    {
        Tools::displayAsDeprecated();

        return false;
    }

    public static function isAvailableWhenOutOfStock($out_of_stock)
    {
        // @TODO 1.5.0 Update of STOCK_MANAGEMENT & ORDER_OUT_OF_STOCK
        static $ps_stock_management = null;
        if ($ps_stock_management === null) {
            $ps_stock_management = Configuration::get('PS_STOCK_MANAGEMENT');
        }

        if (!$ps_stock_management) {
            return true;
        } else {
            static $ps_order_out_of_stock = null;
            if ($ps_order_out_of_stock === null) {
                $ps_order_out_of_stock = Configuration::get('PS_ORDER_OUT_OF_STOCK');
            }

            return (int)$out_of_stock == 2 ? (int)$ps_order_out_of_stock : (int)$out_of_stock;
        }
    }

    /**
     * Check product availability
     *
     * @param int $qty Quantity desired
     * @return bool True if product is available with this quantity
     */
    public function checkQty($qty)
    {
        if (Pack::isPack((int)$this->id) && !Pack::isInStock((int)$this->id)) {
            return false;
        }

        if ($this->isAvailableWhenOutOfStock(StockAvailable::outOfStock($this->id))) {
            return true;
        }

        if (isset($this->id_product_attribute)) {
            $id_product_attribute = $this->id_product_attribute;
        } else {
            $id_product_attribute = 0;
        }

        return ($qty <= StockAvailable::getQuantityAvailableByProduct($this->id, $id_product_attribute));
    }

    /**
     * Check if there is no default attribute and create it if not
     */
    public function checkDefaultAttributes()
    {
        if (!$this->id) {
            return false;
        }

        if (Db::getInstance()->getValue('SELECT COUNT(*)
				FROM `'._DB_PREFIX_.'product_attribute` pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				WHERE product_attribute_shop.`default_on` = 1
				AND pa.`id_product` = '.(int)$this->id) > Shop::getTotalShops(true)) {
            Db::getInstance()->execute('UPDATE '._DB_PREFIX_.'product_attribute_shop product_attribute_shop, '._DB_PREFIX_.'product_attribute pa
					SET product_attribute_shop.default_on=NULL, pa.default_on = NULL
					WHERE product_attribute_shop.id_product_attribute=pa.id_product_attribute AND pa.id_product='.(int)$this->id
                    .Shop::addSqlRestriction(false, 'product_attribute_shop'));
        }

        $row = Db::getInstance()->getRow('
			SELECT pa.id_product
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE product_attribute_shop.`default_on` = 1
				AND pa.`id_product` = '.(int)$this->id
        );
        if ($row) {
            return true;
        }

        $mini = Db::getInstance()->getRow('
		SELECT MIN(pa.id_product_attribute) as `id_attr`
		FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE pa.`id_product` = '.(int)$this->id
        );
        if (!$mini) {
            return false;
        }

        if (!ObjectModel::updateMultishopTable('Combination', array('default_on' => 1), 'a.id_product_attribute = '.(int)$mini['id_attr'])) {
            return false;
        }
        return true;
    }

    public static function getAttributesColorList(Array $products, $have_stock = true)
    {
        if (!count($products)) {
            return array();
        }

        $id_lang = Context::getContext()->language->id;

        $check_stock = !Configuration::get('PS_DISP_UNAVAILABLE_ATTR');
        if (!$res = Db::getInstance()->executeS('
			SELECT pa.`id_product`, a.`color`, pac.`id_product_attribute`, '.($check_stock ? 'SUM(IF(stock.`quantity` > 0, 1, 0))' : '0').' qty, a.`id_attribute`, al.`name`, IF(color = "", a.id_attribute, color) group_by
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').
            ($check_stock ? Product::sqlStock('pa', 'pa') : '').'
			JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.`id_product_attribute` = product_attribute_shop.`id_product_attribute`)
			JOIN `'._DB_PREFIX_.'attribute` a ON (a.`id_attribute` = pac.`id_attribute`)
			JOIN `'._DB_PREFIX_.'attribute_lang` al ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)$id_lang.')
			JOIN `'._DB_PREFIX_.'attribute_group` ag ON (a.id_attribute_group = ag.`id_attribute_group`)
			WHERE pa.`id_product` IN ('.implode(array_map('intval', $products), ',').') AND ag.`is_color_group` = 1
			GROUP BY pa.`id_product`, a.`id_attribute`, `group_by`
			'.($check_stock ? 'HAVING qty > 0' : '').'
			ORDER BY a.`position` ASC;'
            )
        ) {
            return false;
        }

        $colors = array();
        foreach ($res as $row) {
            if (Tools::isEmpty($row['color']) && !@filemtime(_PS_COL_IMG_DIR_.$row['id_attribute'].'.jpg')) {
                continue;
            }

            $colors[(int)$row['id_product']][] = array('id_product_attribute' => (int)$row['id_product_attribute'], 'color' => $row['color'], 'id_product' => $row['id_product'], 'name' => $row['name'], 'id_attribute' => $row['id_attribute']);
        }

        return $colors;
    }

    /**
     * Get all available attribute groups
     *
     * @param int $id_lang Language id
     * @return array Attribute groups
     */
    public function getAttributesGroups($id_lang)
    {
        if (!Combination::isFeatureActive()) {
            return array();
        }
        $sql = 'SELECT ag.`id_attribute_group`, ag.`is_color_group`, agl.`name` AS group_name, agl.`public_name` AS public_group_name,
					a.`id_attribute`, al.`name` AS attribute_name, a.`color` AS attribute_color, product_attribute_shop.`id_product_attribute`,
					IFNULL(stock.quantity, 0) as quantity, product_attribute_shop.`price`, product_attribute_shop.`ecotax`, product_attribute_shop.`weight`,
					product_attribute_shop.`default_on`, pa.`reference`, product_attribute_shop.`unit_price_impact`,
					product_attribute_shop.`minimal_quantity`, product_attribute_shop.`available_date`, ag.`group_type`
				FROM `'._DB_PREFIX_.'product_attribute` pa
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				'.Product::sqlStock('pa', 'pa').'
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
				LEFT JOIN `'._DB_PREFIX_.'attribute` a ON (a.`id_attribute` = pac.`id_attribute`)
				LEFT JOIN `'._DB_PREFIX_.'attribute_group` ag ON (ag.`id_attribute_group` = a.`id_attribute_group`)
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (a.`id_attribute` = al.`id_attribute`)
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl ON (ag.`id_attribute_group` = agl.`id_attribute_group`)
				'.Shop::addSqlAssociation('attribute', 'a').'
				WHERE pa.`id_product` = '.(int)$this->id.'
					AND al.`id_lang` = '.(int)$id_lang.'
					AND agl.`id_lang` = '.(int)$id_lang.'
				GROUP BY id_attribute_group, id_product_attribute
				ORDER BY ag.`position` ASC, a.`position` ASC, agl.`name` ASC';
        return Db::getInstance()->executeS($sql);
    }

    /**
     * Delete product accessories
     *
     * @return mixed Deletion result
     */
    public function deleteAccessories()
    {
    	return Db::getInstance()->delete('accessory', 'id_product_1 = '.(int)$this->id);
    }

    /**
     * Delete product from other products accessories
     *
     * @return mixed Deletion result
     */
    public function deleteFromAccessories()
    {
    	return Db::getInstance()->delete('accessory', 'id_product_2 = '.(int)$this->id);
    }

    /**
     * Get product accessories (only names)
     *
     * @param int $id_lang Language id
     * @param int $id_product Product id
     * @return array Product accessories
     */
    public static function getAccessoriesLight($id_lang, $id_product)
    {
        return Db::getInstance()->executeS('
			SELECT p.`id_product`, p.`reference`, pl.`name`
			FROM `'._DB_PREFIX_.'accessory`
			LEFT JOIN `'._DB_PREFIX_.'product` p ON (p.`id_product`= `id_product_2`)
			'.Shop::addSqlAssociation('product', 'p').'
			LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (
				p.`id_product` = pl.`id_product`
				AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').'
			)
			WHERE `id_product_1` = '.(int)$id_product
        );
    }

    /**
     * Get product accessories
     *
     * @param int $id_lang Language id
     * @return array Product accessories
     */
    public function getAccessories($id_lang, $active = true)
    {
        $sql = 'SELECT p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) as quantity, pl.`description`, pl.`description_short`, pl.`link_rewrite`,
					pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`, pl.`name`, pl.`available_now`, pl.`available_later`,
					image_shop.`id_image` id_image, il.`legend`, m.`name` as manufacturer_name, cl.`name` AS category_default, IFNULL(product_attribute_shop.id_product_attribute, 0) id_product_attribute,
					DATEDIFF(
						p.`date_add`,
						DATE_SUB(
							"'.date('Y-m-d').' 00:00:00",
							INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY
						)
					) > 0 AS new
				FROM `'._DB_PREFIX_.'accessory`
				LEFT JOIN `'._DB_PREFIX_.'product` p ON p.`id_product` = `id_product_2`
				'.Shop::addSqlAssociation('product', 'p').'
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_shop` product_attribute_shop
					ON (p.`id_product` = product_attribute_shop.`id_product` AND product_attribute_shop.`default_on` = 1 AND product_attribute_shop.id_shop='.(int)$this->id_shop.')
				LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (
					p.`id_product` = pl.`id_product`
					AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').'
				)
				LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (
					product_shop.`id_category_default` = cl.`id_category`
					AND cl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('cl').'
				)
				LEFT JOIN `'._DB_PREFIX_.'image_shop` image_shop
					ON (image_shop.`id_product` = p.`id_product` AND image_shop.cover=1 AND image_shop.id_shop='.(int)$this->id_shop.')
				LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (image_shop.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang.')
				LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON (p.`id_manufacturer`= m.`id_manufacturer`)
				'.Product::sqlStock('p', 0).'
				WHERE `id_product_1` = '.(int)$this->id.
                ($active ? ' AND product_shop.`active` = 1 AND product_shop.`visibility` != \'none\'' : '').'
				GROUP BY product_shop.id_product';

        if (!$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql)) {
            return false;
        }

        foreach ($result as &$row) {
            $row['id_product_attribute'] = Product::getDefaultAttribute((int)$row['id_product']);
        }

        return $this->getProductsProperties($id_lang, $result);
    }

    public static function getAccessoryById($accessory_id)
    {
        return Db::getInstance()->getRow('SELECT `id_product`, `name` FROM `'._DB_PREFIX_.'product_lang` WHERE `id_product` = '.(int)$accessory_id);
    }

    /**
     * Link accessories with product
     *
     * @param array $accessories_id Accessories ids
     */
    public function changeAccessories($accessories_id)
    {
        foreach ($accessories_id as $id_product_2) {
            Db::getInstance()->insert('accessory', array(
                'id_product_1' => (int)$this->id,
                'id_product_2' => (int)$id_product_2
            ));
        }
    }

    /**
     * Add new feature to product
     */
    public function addFeaturesCustomToDB($id_value, $lang, $cust)
    {
        $row = array('id_feature_value' => (int)$id_value, 'id_lang' => (int)$lang, 'value' => pSQL($cust));
        return Db::getInstance()->insert('feature_value_lang', $row);
    }

    public function addFeaturesToDB($id_feature, $id_value, $cust = 0)
    {
        if ($cust) {
            $row = array('id_feature' => (int)$id_feature, 'custom' => 1);
            Db::getInstance()->insert('feature_value', $row);
            $id_value = Db::getInstance()->Insert_ID();
        }
        $row = array('id_feature' => (int)$id_feature, 'id_product' => (int)$this->id, 'id_feature_value' => (int)$id_value);
        Db::getInstance()->insert('feature_product', $row);
        SpecificPriceRule::applyAllRules(array((int)$this->id));
        if ($id_value) {
            return ($id_value);
        }
    }

    public static function addFeatureProductImport($id_product, $id_feature, $id_feature_value)
    {
        return Db::getInstance()->execute('
			INSERT INTO `'._DB_PREFIX_.'feature_product` (`id_feature`, `id_product`, `id_feature_value`)
			VALUES ('.(int)$id_feature.', '.(int)$id_product.', '.(int)$id_feature_value.')
			ON DUPLICATE KEY UPDATE `id_feature_value` = '.(int)$id_feature_value
        );
    }

    /**
    * Select all features for the object
    *
    * @return array Array with feature product's data
    */
    public function getFeatures()
    {
        return Product::getFeaturesStatic((int)$this->id);
    }

    public static function getFeaturesStatic($id_product)
    {
        if (!Feature::isFeatureActive()) {
            return array();
        }
        if (!array_key_exists($id_product, self::$_cacheFeatures)) {
            self::$_cacheFeatures[$id_product] = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
				SELECT fp.id_feature, fp.id_product, fp.id_feature_value, custom
				FROM `'._DB_PREFIX_.'feature_product` fp
				LEFT JOIN `'._DB_PREFIX_.'feature_value` fv ON (fp.id_feature_value = fv.id_feature_value)
				WHERE `id_product` = '.(int)$id_product
            );
        }
        return self::$_cacheFeatures[$id_product];
    }

    public static function cacheProductsFeatures($product_ids)
    {
        if (!Feature::isFeatureActive()) {
            return;
        }

        $product_implode = array();
        foreach ($product_ids as $id_product) {
            if ((int)$id_product && !array_key_exists($id_product, self::$_cacheFeatures)) {
                $product_implode[] = (int)$id_product;
            }
        }
        if (!count($product_implode)) {
            return;
        }

        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
		SELECT id_feature, id_product, id_feature_value
		FROM `'._DB_PREFIX_.'feature_product`
		WHERE `id_product` IN ('.implode($product_implode, ',').')');
        foreach ($result as $row) {
            if (!array_key_exists($row['id_product'], self::$_cacheFeatures)) {
                self::$_cacheFeatures[$row['id_product']] = array();
            }
            self::$_cacheFeatures[$row['id_product']][] = $row;
        }
    }

    public static function cacheFrontFeatures($product_ids, $id_lang)
    {
        if (!Feature::isFeatureActive()) {
            return;
        }

        $product_implode = array();
        foreach ($product_ids as $id_product) {
            if ((int)$id_product && !array_key_exists($id_product.'-'.$id_lang, self::$_cacheFeatures)) {
                $product_implode[] = (int)$id_product;
            }
        }
        if (!count($product_implode)) {
            return;
        }

        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
		SELECT id_product, name, value, pf.id_feature
		FROM '._DB_PREFIX_.'feature_product pf
		LEFT JOIN '._DB_PREFIX_.'feature_lang fl ON (fl.id_feature = pf.id_feature AND fl.id_lang = '.(int)$id_lang.')
		LEFT JOIN '._DB_PREFIX_.'feature_value_lang fvl ON (fvl.id_feature_value = pf.id_feature_value AND fvl.id_lang = '.(int)$id_lang.')
		LEFT JOIN '._DB_PREFIX_.'feature f ON (f.id_feature = pf.id_feature)
		'.Shop::addSqlAssociation('feature', 'f').'
		WHERE `id_product` IN ('.implode($product_implode, ',').')
		ORDER BY f.position ASC');

        foreach ($result as $row) {
            if (!array_key_exists($row['id_product'].'-'.$id_lang, self::$_frontFeaturesCache)) {
                self::$_frontFeaturesCache[$row['id_product'].'-'.$id_lang] = array();
            }
            if (!isset(self::$_frontFeaturesCache[$row['id_product'].'-'.$id_lang][$row['id_feature']])) {
                self::$_frontFeaturesCache[$row['id_product'].'-'.$id_lang][$row['id_feature']] = $row;
            }
        }
    }

    /**
    * Admin panel product search
    *
    * @param int $id_lang Language id
    * @param string $query Search query
    * @return array Matching products
    */
    public static function searchByName($id_lang, $query, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        $sql = new DbQuery();
        $sql->select('p.`id_product`, pl.`name`, p.`ean13`, p.`upc`, p.`active`, p.`reference`, m.`name` AS manufacturer_name, stock.`quantity`, product_shop.advanced_stock_management, p.`customizable`');
        $sql->from('product', 'p');
        $sql->join(Shop::addSqlAssociation('product', 'p'));
        $sql->leftJoin('product_lang', 'pl', '
			p.`id_product` = pl.`id_product`
			AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl')
        );
        $sql->leftJoin('manufacturer', 'm', 'm.`id_manufacturer` = p.`id_manufacturer`');

        $where = 'pl.`name` LIKE \'%'.pSQL($query).'%\'
		OR p.`ean13` LIKE \'%'.pSQL($query).'%\'
		OR p.`upc` LIKE \'%'.pSQL($query).'%\'
		OR p.`reference` LIKE \'%'.pSQL($query).'%\'
		OR p.`supplier_reference` LIKE \'%'.pSQL($query).'%\'
		OR EXISTS(SELECT * FROM `'._DB_PREFIX_.'product_supplier` sp WHERE sp.`id_product` = p.`id_product` AND `product_supplier_reference` LIKE \'%'.pSQL($query).'%\')';

        $sql->orderBy('pl.`name` ASC');

        if (Combination::isFeatureActive()) {
            $where .= ' OR EXISTS(SELECT * FROM `'._DB_PREFIX_.'product_attribute` `pa` WHERE pa.`id_product` = p.`id_product` AND (pa.`reference` LIKE \'%'.pSQL($query).'%\'
			OR pa.`supplier_reference` LIKE \'%'.pSQL($query).'%\'
			OR pa.`ean13` LIKE \'%'.pSQL($query).'%\'
			OR pa.`upc` LIKE \'%'.pSQL($query).'%\'))';
        }
        $sql->where($where);
        $sql->join(Product::sqlStock('p', 0));

        $result = Db::getInstance()->executeS($sql);

        if (!$result) {
            return false;
        }

        $results_array = array();
        foreach ($result as $row) {
            $row['price_tax_incl'] = Product::getPriceStatic($row['id_product'], true, null, 2);
            $row['price_tax_excl'] = Product::getPriceStatic($row['id_product'], false, null, 2);
            $results_array[] = $row;
        }
        return $results_array;
    }

    /**
    * Duplicate attributes when duplicating a product
    *
    * @param int $id_product_old Old product id
    * @param int $id_product_new New product id
    */
    public static function duplicateAttributes($id_product_old, $id_product_new)
    {
        $return = true;
        $combination_images = array();

        $result = Db::getInstance()->executeS('
		SELECT pa.*, product_attribute_shop.*
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE pa.`id_product` = '.(int)$id_product_old
        );
        $combinations = array();

        foreach ($result as $row) {
            $id_product_attribute_old = (int)$row['id_product_attribute'];
            if (!isset($combinations[$id_product_attribute_old])) {
                $id_combination = null;
                $id_shop = null;
                $result2 = Db::getInstance()->executeS('
				SELECT *
				FROM `'._DB_PREFIX_.'product_attribute_combination`
					WHERE `id_product_attribute` = '.$id_product_attribute_old
                );
            } else {
                $id_combination = (int)$combinations[$id_product_attribute_old];
                $id_shop = (int)$row['id_shop'];
                $context_old = Shop::getContext();
                $context_shop_id_old = Shop::getContextShopID();
                Shop::setContext(Shop::CONTEXT_SHOP, $id_shop);
            }

            $row['id_product'] = $id_product_new;
            unset($row['id_product_attribute']);

            $combination = new Combination($id_combination, null, $id_shop);
            foreach ($row as $k => $v) {
                $combination->$k = $v;
            }
            $return &= $combination->save();

            $id_product_attribute_new = (int)$combination->id;

            if ($result_images = Product::_getAttributeImageAssociations($id_product_attribute_old)) {
                $combination_images['old'][$id_product_attribute_old] = $result_images;
                $combination_images['new'][$id_product_attribute_new] = $result_images;
            }

            if (!isset($combinations[$id_product_attribute_old])) {
                $combinations[$id_product_attribute_old] = (int)$id_product_attribute_new;
                foreach ($result2 as $row2) {
                    $row2['id_product_attribute'] = $id_product_attribute_new;
                    $return &= Db::getInstance()->insert('product_attribute_combination', $row2);
                }
            } else {
                Shop::setContext($context_old, $context_shop_id_old);
            }

            //Copy suppliers
            $result3 = Db::getInstance()->executeS('
			SELECT *
			FROM `'._DB_PREFIX_.'product_supplier`
			WHERE `id_product_attribute` = '.(int)$id_product_attribute_old.'
			AND `id_product` = '.(int)$id_product_old);

            foreach ($result3 as $row3) {
                unset($row3['id_product_supplier']);
                $row3['id_product'] = $id_product_new;
                $row3['id_product_attribute'] = $id_product_attribute_new;
                $return &= Db::getInstance()->insert('product_supplier', $row3);
            }
        }

        $impacts = self::getAttributesImpacts($id_product_old);

        if (is_array($impacts) && count($impacts)) {
            $impact_sql = 'INSERT INTO `'._DB_PREFIX_.'attribute_impact` (`id_product`, `id_attribute`, `weight`, `price`) VALUES ';

            foreach ($impacts as $id_attribute => $impact) {
                $impact_sql .= '('.(int)$id_product_new.', '.(int)$id_attribute.', '.(float)$impacts[$id_attribute]['weight'].', '
                    .(float)$impacts[$id_attribute]['price'].'),';
            }

            $impact_sql = substr_replace($impact_sql, '', -1);
            $impact_sql .= ' ON DUPLICATE KEY UPDATE `price` = VALUES(price), `weight` = VALUES(weight)';

            Db::getInstance()->execute($impact_sql);
        }

        return !$return ? false : $combination_images;
    }

    public static function getAttributesImpacts($id_product)
    {
        $return = array();
        $result = Db::getInstance()->executeS(
            'SELECT ai.`id_attribute`, ai.`price`, ai.`weight`
			FROM `'._DB_PREFIX_.'attribute_impact` ai
			WHERE ai.`id_product` = '.(int)$id_product);

        if (!$result) {
            return array();
        }
        foreach ($result as $impact) {
            $return[$impact['id_attribute']]['price'] = (float)$impact['price'];
            $return[$impact['id_attribute']]['weight'] = (float)$impact['weight'];
        }
        return $return;
    }

    /**
    * Get product attribute image associations
    * @param int $id_product_attribute
    * @return array
    */
    public static function _getAttributeImageAssociations($id_product_attribute)
    {
        $combination_images = array();
        $data = Db::getInstance()->executeS('
			SELECT `id_image`
			FROM `'._DB_PREFIX_.'product_attribute_image`
			WHERE `id_product_attribute` = '.(int)$id_product_attribute);
        foreach ($data as $row) {
            $combination_images[] = (int)$row['id_image'];
        }
        return $combination_images;
    }

    public static function duplicateAccessories($id_product_old, $id_product_new)
    {
        $return = true;

        $result = Db::getInstance()->executeS('
		SELECT *
		FROM `'._DB_PREFIX_.'accessory`
		WHERE `id_product_1` = '.(int)$id_product_old);
        foreach ($result as $row) {
            $data = array(
                'id_product_1' => (int)$id_product_new,
                'id_product_2' => (int)$row['id_product_2']);
            $return &= Db::getInstance()->insert('accessory', $data);
        }
        return $return;
    }

    public static function duplicateTags($id_product_old, $id_product_new)
    {
        $tags = Db::getInstance()->executeS('SELECT `id_tag`, `id_lang` FROM `'._DB_PREFIX_.'product_tag` WHERE `id_product` = '.(int)$id_product_old);
        if (!Db::getInstance()->NumRows()) {
            return true;
        }

        $data = array();
        foreach ($tags as $tag) {
            $data[] = array(
                'id_product' => (int)$id_product_new,
                'id_tag' => (int)$tag['id_tag'],
                'id_lang' => (int)$tag['id_lang'],
            );
        }

        return Db::getInstance()->insert('product_tag', $data);
    }

    public static function duplicateDownload($id_product_old, $id_product_new)
    {
        $sql = 'SELECT `display_filename`, `filename`, `date_add`, `date_expiration`, `nb_days_accessible`, `nb_downloadable`, `active`, `is_shareable`
				FROM `'._DB_PREFIX_.'product_download`
				WHERE `id_product` = '.(int)$id_product_old;
        $results = Db::getInstance()->executeS($sql);
        if (!$results) {
            return true;
        }

        $data = array();
        foreach ($results as $row) {
            $new_filename = ProductDownload::getNewFilename();
            copy(_PS_DOWNLOAD_DIR_.$row['filename'], _PS_DOWNLOAD_DIR_.$new_filename);

            $data[] = array(
                'id_product' => (int)$id_product_new,
                'display_filename' => pSQL($row['display_filename']),
                'filename' => pSQL($new_filename),
                'date_expiration' => pSQL($row['date_expiration']),
                'nb_days_accessible' => (int)$row['nb_days_accessible'],
                'nb_downloadable' => (int)$row['nb_downloadable'],
                'active' => (int)$row['active'],
                'is_shareable' => (int)$row['is_shareable'],
                'date_add' => date('Y-m-d H:i:s')
            );
        }
        return Db::getInstance()->insert('product_download', $data);
    }

    public static function duplicateAttachments($id_product_old, $id_product_new)
    {
        // Get all ids attachments of the old product
        $sql = 'SELECT `id_attachment` FROM `'._DB_PREFIX_.'product_attachment` WHERE `id_product` = '.(int)$id_product_old;
        $results = Db::getInstance()->executeS($sql);

        if (!$results) {
            return true;
        }

        $data = array();

        // Prepare data of table product_attachment
        foreach ($results as $row) {
            $data[] = array(
                'id_product' => (int)$id_product_new,
                'id_attachment' => (int)$row['id_attachment']
            );
        }

        // Duplicate product attachement
        $res = Db::getInstance()->insert('product_attachment', $data);
        Product::updateCacheAttachment((int)$id_product_new);
        return $res;
    }

    /**
    * Duplicate features when duplicating a product
    *
    * @param int $id_product_old Old product id
    * @param int $id_product_old New product id
    */
    public static function duplicateFeatures($id_product_old, $id_product_new)
    {
        $return = true;

        $result = Db::getInstance()->executeS('
		SELECT *
		FROM `'._DB_PREFIX_.'feature_product`
		WHERE `id_product` = '.(int)$id_product_old);
        foreach ($result as $row) {
            $result2 = Db::getInstance()->getRow('
			SELECT *
			FROM `'._DB_PREFIX_.'feature_value`
			WHERE `id_feature_value` = '.(int)$row['id_feature_value']);
            // Custom feature value, need to duplicate it
            if ($result2['custom']) {
                $old_id_feature_value = $result2['id_feature_value'];
                unset($result2['id_feature_value']);
                $return &= Db::getInstance()->insert('feature_value', $result2);
                $max_fv = Db::getInstance()->getRow('
					SELECT MAX(`id_feature_value`) AS nb
					FROM `'._DB_PREFIX_.'feature_value`');
                $new_id_feature_value = $max_fv['nb'];

                foreach (Language::getIDs(false) as $id_lang) {
                    $result3 = Db::getInstance()->getRow('
					SELECT *
					FROM `'._DB_PREFIX_.'feature_value_lang`
					WHERE `id_feature_value` = '.(int)$old_id_feature_value.'
					AND `id_lang` = '.(int)$id_lang);

                    if ($result3) {
                        $result3['id_feature_value'] = (int)$new_id_feature_value;
                        $result3['value'] = pSQL($result3['value']);
                        $return &= Db::getInstance()->insert('feature_value_lang', $result3);
                    }
                }
                $row['id_feature_value'] = $new_id_feature_value;
            }

            $row['id_product'] = (int)$id_product_new;
            $return &= Db::getInstance()->insert('feature_product', $row);
        }
        return $return;
    }

    protected static function _getCustomizationFieldsNLabels($product_id, $id_shop = null)
    {
        if (!Customization::isFeatureActive()) {
            return false;
        }

        if (Shop::isFeatureActive() && !$id_shop) {
            $id_shop = (int)Context::getContext()->shop->id;
        }

        $customizations = array();
        if (($customizations['fields'] = Db::getInstance()->executeS('
			SELECT `id_customization_field`, `type`, `required`
			FROM `'._DB_PREFIX_.'customization_field`
			WHERE `id_product` = '.(int)$product_id.'
			ORDER BY `id_customization_field`')) === false) {
            return false;
        }

        if (empty($customizations['fields'])) {
            return array();
        }

        $customization_field_ids = array();
        foreach ($customizations['fields'] as $customization_field) {
            $customization_field_ids[] = (int)$customization_field['id_customization_field'];
        }

        if (($customization_labels = Db::getInstance()->executeS('
			SELECT `id_customization_field`, `id_lang`, `name`
			FROM `'._DB_PREFIX_.'customization_field_lang`
			WHERE `id_customization_field` IN ('.implode(', ', $customization_field_ids).')'.($id_shop ? ' AND cfl.`id_shop` = '.$id_shop : '').'
			ORDER BY `id_customization_field`')) === false) {
            return false;
        }

        foreach ($customization_labels as $customization_label) {
            $customizations['labels'][$customization_label['id_customization_field']][] = $customization_label;
        }

        return $customizations;
    }

    public static function duplicateSpecificPrices($old_product_id, $product_id)
    {
        foreach (SpecificPrice::getIdsByProductId((int)$old_product_id) as $data) {
            $specific_price = new SpecificPrice((int)$data['id_specific_price']);
            if (!$specific_price->duplicate((int)$product_id)) {
                return false;
            }
        }
        return true;
    }

    public static function duplicateCustomizationFields($old_product_id, $product_id)
    {
        // If customization is not activated, return success
        if (!Customization::isFeatureActive()) {
            return true;
        }
        if (($customizations = Product::_getCustomizationFieldsNLabels($old_product_id)) === false) {
            return false;
        }
        if (empty($customizations)) {
            return true;
        }
        foreach ($customizations['fields'] as $customization_field) {
            /* The new datas concern the new product */
            $customization_field['id_product'] = (int)$product_id;
            $old_customization_field_id = (int)$customization_field['id_customization_field'];

            unset($customization_field['id_customization_field']);

            if (!Db::getInstance()->insert('customization_field', $customization_field)
                || !$customization_field_id = Db::getInstance()->Insert_ID()) {
                return false;
            }

            if (isset($customizations['labels'])) {
                foreach ($customizations['labels'][$old_customization_field_id] as $customization_label) {
                    $data = array(
                        'id_customization_field' => (int)$customization_field_id,
                        'id_lang' => (int)$customization_label['id_lang'],
                        'name' => pSQL($customization_label['name']),
                    );

                    if (!Db::getInstance()->insert('customization_field_lang', $data)) {
                        return false;
                    }
                }
            }
        }
        return true;
    }

    /**
     * Adds suppliers from old product onto a newly duplicated product
     *
     * @param int $id_product_old
     * @param int $id_product_new
     */
    public static function duplicateSuppliers($id_product_old, $id_product_new)
    {
        $result = Db::getInstance()->executeS('
		SELECT *
		FROM `'._DB_PREFIX_.'product_supplier`
		WHERE `id_product` = '.(int)$id_product_old.' AND `id_product_attribute` = 0');

        foreach ($result as $row) {
            unset($row['id_product_supplier']);
            $row['id_product'] = $id_product_new;
            if (!Db::getInstance()->insert('product_supplier', $row)) {
                return false;
            }
        }

        return true;
    }

    /**
    * Get the link of the product page of this product
    */
    public function getLink(Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }
        return $context->link->getProductLink($this);
    }

    public function getTags($id_lang)
    {
        if (!$this->isFullyLoaded && is_null($this->tags)) {
            $this->tags = Tag::getProductTags($this->id);
        }

        if (!($this->tags && array_key_exists($id_lang, $this->tags))) {
            return '';
        }

        $result = '';
        foreach ($this->tags[$id_lang] as $tag_name) {
            $result .= $tag_name.', ';
        }

        return rtrim($result, ', ');
    }

    public static function defineProductImage($row, $id_lang)
    {
        if (isset($row['id_image']) && $row['id_image']) {
            return $row['id_product'].'-'.$row['id_image'];
        }

        return Language::getIsoById((int)$id_lang).'-default';
    }

    public static function getProductProperties($id_lang, $row, Context $context = null)
    {
        if (!$row['id_product']) {
            return false;
        }

        if ($context == null) {
            $context = Context::getContext();
        }

        $id_product_attribute = $row['id_product_attribute'] = (!empty($row['id_product_attribute']) ? (int)$row['id_product_attribute'] : null);

        // Product::getDefaultAttribute is only called if id_product_attribute is missing from the SQL query at the origin of it:
        // consider adding it in order to avoid unnecessary queries
        $row['allow_oosp'] = Product::isAvailableWhenOutOfStock($row['out_of_stock']);
        if (Combination::isFeatureActive() && $id_product_attribute === null
            && ((isset($row['cache_default_attribute']) && ($ipa_default = $row['cache_default_attribute']) !== null)
                || ($ipa_default = Product::getDefaultAttribute($row['id_product'], !$row['allow_oosp'])))) {
            $id_product_attribute = $row['id_product_attribute'] = $ipa_default;
        }
        if (!Combination::isFeatureActive() || !isset($row['id_product_attribute'])) {
            $id_product_attribute = $row['id_product_attribute'] = 0;
        }

        // Tax
        $usetax = Tax::excludeTaxeOption();

        $cache_key = $row['id_product'].'-'.$id_product_attribute.'-'.$id_lang.'-'.(int)$usetax;
        if (isset($row['id_product_pack'])) {
            $cache_key .= '-pack'.$row['id_product_pack'];
        }

        if (isset(self::$producPropertiesCache[$cache_key])) {
            return array_merge($row, self::$producPropertiesCache[$cache_key]);
        }

        // Datas
        $row['category'] = Category::getLinkRewrite((int)$row['id_category_default'], (int)$id_lang);
        $row['link'] = $context->link->getProductLink((int)$row['id_product'], $row['link_rewrite'], $row['category'], $row['ean13']);

        $row['attribute_price'] = 0;
        if ($id_product_attribute) {
            $row['attribute_price'] = (float)Product::getProductAttributePrice($id_product_attribute);
        }

        $row['price_tax_exc'] = Product::getPriceStatic(
            (int)$row['id_product'],
            false,
            $id_product_attribute,
            (self::$_taxCalculationMethod == PS_TAX_EXC ? 2 : 6)
        );

        if (self::$_taxCalculationMethod == PS_TAX_EXC) {
            $row['price_tax_exc'] = Tools::ps_round($row['price_tax_exc'], 2);
            $row['price'] = Product::getPriceStatic(
                (int)$row['id_product'],
                true,
                $id_product_attribute,
                6
            );
            $row['price_without_reduction'] = Product::getPriceStatic(
                (int)$row['id_product'],
                false,
                $id_product_attribute,
                2,
                null,
                false,
                false
            );
        } else {
            $row['price'] = Tools::ps_round(
                Product::getPriceStatic(
                    (int)$row['id_product'],
                    true,
                    $id_product_attribute,
                    6
                ),
                (int)Configuration::get('PS_PRICE_DISPLAY_PRECISION')
            );
            $row['price_without_reduction'] = Product::getPriceStatic(
                (int)$row['id_product'],
                true,
                $id_product_attribute,
                6,
                null,
                false,
                false
            );
        }

        $row['reduction'] = Product::getPriceStatic(
            (int)$row['id_product'],
            (bool)$usetax,
            $id_product_attribute,
            6,
            null,
            true,
            true,
            1,
            true,
            null,
            null,
            null,
            $specific_prices
        );

        $row['specific_prices'] = $specific_prices;

        $row['quantity'] = Product::getQuantity(
            (int)$row['id_product'],
            0,
            isset($row['cache_is_pack']) ? $row['cache_is_pack'] : null
        );

        $row['quantity_all_versions'] = $row['quantity'];

        if ($row['id_product_attribute']) {
            $row['quantity'] = Product::getQuantity(
                (int)$row['id_product'],
                $id_product_attribute,
                isset($row['cache_is_pack']) ? $row['cache_is_pack'] : null
            );
        }

        $row['id_image'] = Product::defineProductImage($row, $id_lang);
        $row['features'] = Product::getFrontFeaturesStatic((int)$id_lang, $row['id_product']);

        $row['attachments'] = array();
        if (!isset($row['cache_has_attachments']) || $row['cache_has_attachments']) {
            $row['attachments'] = Product::getAttachmentsStatic((int)$id_lang, $row['id_product']);
        }

        $row['virtual'] = ((!isset($row['is_virtual']) || $row['is_virtual']) ? 1 : 0);

        // Pack management
        $row['pack'] = (!isset($row['cache_is_pack']) ? Pack::isPack($row['id_product']) : (int)$row['cache_is_pack']);
        $row['packItems'] = $row['pack'] ? Pack::getItemTable($row['id_product'], $id_lang) : array();
        $row['nopackprice'] = $row['pack'] ? Pack::noPackPrice($row['id_product']) : 0;
        if ($row['pack'] && !Pack::isInStock($row['id_product'])) {
            $row['quantity'] = 0;
        }

        $row['customization_required'] = false;
        if (isset($row['customizable']) && $row['customizable'] && Customization::isFeatureActive()) {
            if (count(Product::getRequiredCustomizableFieldsStatic((int)$row['id_product']))) {
                $row['customization_required'] = true;
            }
        }

        $row = Product::getTaxesInformations($row, $context);
        self::$producPropertiesCache[$cache_key] = $row;
        return self::$producPropertiesCache[$cache_key];
    }

    public static function getTaxesInformations($row, Context $context = null)
    {
        static $address = null;

        if ($context === null) {
            $context = Context::getContext();
        }
        if ($address === null) {
            $address = new Address();
        }

        $address->id_country = (int)$context->country->id;
        $address->id_state = 0;
        $address->postcode = 0;

        $tax_manager = TaxManagerFactory::getManager($address, Product::getIdTaxRulesGroupByIdProduct((int)$row['id_product'], $context));
        $row['rate'] = $tax_manager->getTaxCalculator()->getTotalRate();
        $row['tax_name'] = $tax_manager->getTaxCalculator()->getTaxesName();

        return $row;
    }

    public static function getProductsProperties($id_lang, $query_result)
    {
        $results_array = array();

        if (is_array($query_result)) {
            foreach ($query_result as $row) {
                if ($row2 = Product::getProductProperties($id_lang, $row)) {
                    $results_array[] = $row2;
                }
            }
        }

        return $results_array;
    }

    /*
    * Select all features for a given language
    *
    * @param $id_lang Language id
    * @return array Array with feature's data
    */
    public static function getFrontFeaturesStatic($id_lang, $id_product)
    {
        if (!Feature::isFeatureActive()) {
            return array();
        }
        if (!array_key_exists($id_product.'-'.$id_lang, self::$_frontFeaturesCache)) {
            self::$_frontFeaturesCache[$id_product.'-'.$id_lang] = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
				SELECT name, value, pf.id_feature
				FROM '._DB_PREFIX_.'feature_product pf
				LEFT JOIN '._DB_PREFIX_.'feature_lang fl ON (fl.id_feature = pf.id_feature AND fl.id_lang = '.(int)$id_lang.')
				LEFT JOIN '._DB_PREFIX_.'feature_value_lang fvl ON (fvl.id_feature_value = pf.id_feature_value AND fvl.id_lang = '.(int)$id_lang.')
				LEFT JOIN '._DB_PREFIX_.'feature f ON (f.id_feature = pf.id_feature AND fl.id_lang = '.(int)$id_lang.')
				'.Shop::addSqlAssociation('feature', 'f').'
				WHERE pf.id_product = '.(int)$id_product.'
				ORDER BY f.position ASC'
            );
        }
        return self::$_frontFeaturesCache[$id_product.'-'.$id_lang];
    }

    public function getFrontFeatures($id_lang)
    {
        return Product::getFrontFeaturesStatic($id_lang, $this->id);
    }

    public static function getAttachmentsStatic($id_lang, $id_product)
    {
        return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
		SELECT *
		FROM '._DB_PREFIX_.'product_attachment pa
		LEFT JOIN '._DB_PREFIX_.'attachment a ON a.id_attachment = pa.id_attachment
		LEFT JOIN '._DB_PREFIX_.'attachment_lang al ON (a.id_attachment = al.id_attachment AND al.id_lang = '.(int)$id_lang.')
		WHERE pa.id_product = '.(int)$id_product);
    }

    public function getAttachments($id_lang)
    {
        return Product::getAttachmentsStatic($id_lang, $this->id);
    }

    /*
    ** Customization management
    */

    public static function getAllCustomizedDatas($id_cart, $id_lang = null, $only_in_cart = true, $id_shop = null)
    {
        if (!Customization::isFeatureActive()) {
            return false;
        }

        // No need to query if there isn't any real cart!
        if (!$id_cart) {
            return false;
        }
        if (!$id_lang) {
            $id_lang = Context::getContext()->language->id;
        }
        if (Shop::isFeatureActive() && !$id_shop) {
            $id_shop = (int)Context::getContext()->shop->id;
        }


        if (!$result = Db::getInstance()->executeS('
			SELECT cd.`id_customization`, c.`id_address_delivery`, c.`id_product`, cfl.`id_customization_field`, c.`id_product_attribute`,
				cd.`type`, cd.`index`, cd.`value`, cfl.`name`
			FROM `'._DB_PREFIX_.'customized_data` cd
			NATURAL JOIN `'._DB_PREFIX_.'customization` c
			LEFT JOIN `'._DB_PREFIX_.'customization_field_lang` cfl ON (cfl.id_customization_field = cd.`index` AND id_lang = '.(int)$id_lang.
                ($id_shop ? ' AND cfl.`id_shop` = '.$id_shop : '').')
			WHERE c.`id_cart` = '.(int)$id_cart.
            ($only_in_cart ? ' AND c.`in_cart` = 1' : '').'
			ORDER BY `id_product`, `id_product_attribute`, `type`, `index`')) {
            return false;
        }

        $customized_datas = array();

        foreach ($result as $row) {
            $customized_datas[(int)$row['id_product']][(int)$row['id_product_attribute']][(int)$row['id_address_delivery']][(int)$row['id_customization']]['datas'][(int)$row['type']][] = $row;
        }

        if (!$result = Db::getInstance()->executeS(
            'SELECT `id_product`, `id_product_attribute`, `id_customization`, `id_address_delivery`, `quantity`, `quantity_refunded`, `quantity_returned`
			FROM `'._DB_PREFIX_.'customization`
			WHERE `id_cart` = '.(int)$id_cart.($only_in_cart ? '
			AND `in_cart` = 1' : ''))) {
            return false;
        }

        foreach ($result as $row) {
            $customized_datas[(int)$row['id_product']][(int)$row['id_product_attribute']][(int)$row['id_address_delivery']][(int)$row['id_customization']]['quantity'] = (int)$row['quantity'];
            $customized_datas[(int)$row['id_product']][(int)$row['id_product_attribute']][(int)$row['id_address_delivery']][(int)$row['id_customization']]['quantity_refunded'] = (int)$row['quantity_refunded'];
            $customized_datas[(int)$row['id_product']][(int)$row['id_product_attribute']][(int)$row['id_address_delivery']][(int)$row['id_customization']]['quantity_returned'] = (int)$row['quantity_returned'];
        }

        return $customized_datas;
    }

    public static function addCustomizationPrice(&$products, &$customized_datas)
    {
        if (!$customized_datas) {
            return;
        }

        foreach ($products as &$product_update) {
            if (!Customization::isFeatureActive()) {
                $product_update['customizationQuantityTotal'] = 0;
                $product_update['customizationQuantityRefunded'] = 0;
                $product_update['customizationQuantityReturned'] = 0;
            } else {
                $customization_quantity = 0;
                $customization_quantity_refunded = 0;
                $customization_quantity_returned = 0;

                /* Compatibility */
                $product_id = isset($product_update['id_product']) ? (int)$product_update['id_product'] : (int)$product_update['product_id'];
                $product_attribute_id = isset($product_update['id_product_attribute']) ? (int)$product_update['id_product_attribute'] : (int)$product_update['product_attribute_id'];
                $id_address_delivery = (int)$product_update['id_address_delivery'];
                $product_quantity = isset($product_update['cart_quantity']) ? (int)$product_update['cart_quantity'] : (int)$product_update['product_quantity'];
                $price = isset($product_update['price']) ? $product_update['price'] : $product_update['product_price'];
                if (isset($product_update['price_wt']) && $product_update['price_wt']) {
                    $price_wt = $product_update['price_wt'];
                } else {
                    $price_wt = $price * (1 + ((isset($product_update['tax_rate']) ? $product_update['tax_rate'] : $product_update['rate']) * 0.01));
                }

                if (!isset($customized_datas[$product_id][$product_attribute_id][$id_address_delivery])) {
                    $id_address_delivery = 0;
                }
                if (isset($customized_datas[$product_id][$product_attribute_id][$id_address_delivery])) {
                    foreach ($customized_datas[$product_id][$product_attribute_id][$id_address_delivery] as $customization) {
                        $customization_quantity += (int)$customization['quantity'];
                        $customization_quantity_refunded += (int)$customization['quantity_refunded'];
                        $customization_quantity_returned += (int)$customization['quantity_returned'];
                    }
                }

                $product_update['customizationQuantityTotal'] = $customization_quantity;
                $product_update['customizationQuantityRefunded'] = $customization_quantity_refunded;
                $product_update['customizationQuantityReturned'] = $customization_quantity_returned;

                if ($customization_quantity) {
                    $product_update['total_wt'] = $price_wt * ($product_quantity - $customization_quantity);
                    $product_update['total_customization_wt'] = $price_wt * $customization_quantity;
                    $product_update['total'] = $price * ($product_quantity - $customization_quantity);
                    $product_update['total_customization'] = $price * $customization_quantity;
                }
            }
        }
    }

    /*
    ** Customization fields' label management
    */

    protected function _checkLabelField($field, $value)
    {
        if (!Validate::isLabel($value)) {
            return false;
        }
        $tmp = explode('_', $field);
        if (count($tmp) < 4) {
            return false;
        }
        return $tmp;
    }

    protected function _deleteOldLabels()
    {
        $max = array(
            Product::CUSTOMIZE_FILE => (int)$this->uploadable_files,
            Product::CUSTOMIZE_TEXTFIELD => (int)$this->text_fields
        );

        /* Get customization field ids */
        if (($result = Db::getInstance()->executeS(
            'SELECT `id_customization_field`, `type`
			FROM `'._DB_PREFIX_.'customization_field`
			WHERE `id_product` = '.(int)$this->id.'
			ORDER BY `id_customization_field`')
        ) === false) {
            return false;
        }

        if (empty($result)) {
            return true;
        }

        $customization_fields = array(
            Product::CUSTOMIZE_FILE => array(),
            Product::CUSTOMIZE_TEXTFIELD => array()
        );

        foreach ($result as $row) {
            $customization_fields[(int)$row['type']][] = (int)$row['id_customization_field'];
        }

        $extra_file = count($customization_fields[Product::CUSTOMIZE_FILE]) - $max[Product::CUSTOMIZE_FILE];
        $extra_text = count($customization_fields[Product::CUSTOMIZE_TEXTFIELD]) - $max[Product::CUSTOMIZE_TEXTFIELD];

        /* If too much inside the database, deletion */
        if ($extra_file > 0 && count($customization_fields[Product::CUSTOMIZE_FILE]) - $extra_file >= 0 &&
        (!Db::getInstance()->execute(
            'DELETE `'._DB_PREFIX_.'customization_field`,`'._DB_PREFIX_.'customization_field_lang`
			FROM `'._DB_PREFIX_.'customization_field` JOIN `'._DB_PREFIX_.'customization_field_lang`
			WHERE `'._DB_PREFIX_.'customization_field`.`id_product` = '.(int)$this->id.'
			AND `'._DB_PREFIX_.'customization_field`.`type` = '.Product::CUSTOMIZE_FILE.'
			AND `'._DB_PREFIX_.'customization_field_lang`.`id_customization_field` = `'._DB_PREFIX_.'customization_field`.`id_customization_field`
			AND `'._DB_PREFIX_.'customization_field`.`id_customization_field` >= '.(int)$customization_fields[Product::CUSTOMIZE_FILE][count($customization_fields[Product::CUSTOMIZE_FILE]) - $extra_file]
        ))) {
            return false;
        }

        if ($extra_text > 0 && count($customization_fields[Product::CUSTOMIZE_TEXTFIELD]) - $extra_text >= 0 &&
        (!Db::getInstance()->execute(
            'DELETE `'._DB_PREFIX_.'customization_field`,`'._DB_PREFIX_.'customization_field_lang`
			FROM `'._DB_PREFIX_.'customization_field` JOIN `'._DB_PREFIX_.'customization_field_lang`
			WHERE `'._DB_PREFIX_.'customization_field`.`id_product` = '.(int)$this->id.'
			AND `'._DB_PREFIX_.'customization_field`.`type` = '.Product::CUSTOMIZE_TEXTFIELD.'
			AND `'._DB_PREFIX_.'customization_field_lang`.`id_customization_field` = `'._DB_PREFIX_.'customization_field`.`id_customization_field`
			AND `'._DB_PREFIX_.'customization_field`.`id_customization_field` >= '.(int)$customization_fields[Product::CUSTOMIZE_TEXTFIELD][count($customization_fields[Product::CUSTOMIZE_TEXTFIELD]) - $extra_text]
        ))) {
            return false;
        }

        // Refresh cache of feature detachable
        Configuration::updateGlobalValue('PS_CUSTOMIZATION_FEATURE_ACTIVE', Customization::isCurrentlyUsed());

        return true;
    }

    protected function _createLabel($languages, $type)
    {
        // Label insertion
        if (!Db::getInstance()->execute('
			INSERT INTO `'._DB_PREFIX_.'customization_field` (`id_product`, `type`, `required`)
			VALUES ('.(int)$this->id.', '.(int)$type.', 0)') ||
            !$id_customization_field = (int)Db::getInstance()->Insert_ID()) {
            return false;
        }

        // Multilingual label name creation
        $values = '';

        foreach ($languages as $language) {
            foreach (Shop::getContextListShopID() as $id_shop) {
                $values .= '('.(int)$id_customization_field.', '.(int)$language['id_lang'].', '.$id_shop .',\'\'), ';
            }
        }

        $values = rtrim($values, ', ');
        if (!Db::getInstance()->execute('
			INSERT INTO `'._DB_PREFIX_.'customization_field_lang` (`id_customization_field`, `id_lang`, `id_shop`, `name`)
			VALUES '.$values)) {
            return false;
        }

        // Set cache of feature detachable to true
        Configuration::updateGlobalValue('PS_CUSTOMIZATION_FEATURE_ACTIVE', '1');

        return true;
    }

    public function createLabels($uploadable_files, $text_fields)
    {
        $languages = Language::getLanguages();
        if ((int)$uploadable_files > 0) {
            for ($i = 0; $i < (int)$uploadable_files; $i++) {
                if (!$this->_createLabel($languages, Product::CUSTOMIZE_FILE)) {
                    return false;
                }
            }
        }

        if ((int)$text_fields > 0) {
            for ($i = 0; $i < (int)$text_fields; $i++) {
                if (!$this->_createLabel($languages, Product::CUSTOMIZE_TEXTFIELD)) {
                    return false;
                }
            }
        }

        return true;
    }

    public function updateLabels()
    {
        $has_required_fields = 0;
        foreach ($_POST as $field => $value) {
            /* Label update */
            if (strncmp($field, 'label_', 6) == 0) {
                if (!$tmp = $this->_checkLabelField($field, $value)) {
                    return false;
                }
                /* Multilingual label name update */
                if (Shop::isFeatureActive()) {
                    foreach (Shop::getContextListShopID() as $id_shop) {
                        if (!Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'customization_field_lang`
						(`id_customization_field`, `id_lang`, `id_shop`, `name`) VALUES ('.(int)$tmp[2].', '.(int)$tmp[3].', '.$id_shop.', \''.pSQL($value).'\')
						ON DUPLICATE KEY UPDATE `name` = \''.pSQL($value).'\'')) {
                            return false;
                        }
                    }
                } elseif (!Db::getInstance()->execute('
					INSERT INTO `'._DB_PREFIX_.'customization_field_lang`
					(`id_customization_field`, `id_lang`, `name`) VALUES ('.(int)$tmp[2].', '.(int)$tmp[3].', \''.pSQL($value).'\')
					ON DUPLICATE KEY UPDATE `name` = \''.pSQL($value).'\'')) {
                    return false;
                }

                $is_required = isset($_POST['require_'.(int)$tmp[1].'_'.(int)$tmp[2]]) ? 1 : 0;
                $has_required_fields |= $is_required;
                /* Require option update */
                if (!Db::getInstance()->execute(
                    'UPDATE `'._DB_PREFIX_.'customization_field`
					SET `required` = '.(int)$is_required.'
					WHERE `id_customization_field` = '.(int)$tmp[2])) {
                    return false;
                }
            }
        }

        if ($has_required_fields && !ObjectModel::updateMultishopTable('product', array('customizable' => 2), 'a.id_product = '.(int)$this->id)) {
            return false;
        }

        if (!$this->_deleteOldLabels()) {
            return false;
        }

        return true;
    }

    public function getCustomizationFields($id_lang = false, $id_shop = null)
    {
        if (!Customization::isFeatureActive()) {
            return false;
        }

        if (Shop::isFeatureActive() && !$id_shop) {
            $id_shop = (int)Context::getContext()->shop->id;
        }

        if (!$result = Db::getInstance()->executeS('
			SELECT cf.`id_customization_field`, cf.`type`, cf.`required`, cfl.`name`, cfl.`id_lang`
			FROM `'._DB_PREFIX_.'customization_field` cf
			NATURAL JOIN `'._DB_PREFIX_.'customization_field_lang` cfl
			WHERE cf.`id_product` = '.(int)$this->id.($id_lang ? ' AND cfl.`id_lang` = '.(int)$id_lang : '').
                ($id_shop ? ' AND cfl.`id_shop` = '.$id_shop : '').'
			ORDER BY cf.`id_customization_field`')) {
            return false;
        }

        if ($id_lang) {
            return $result;
        }

        $customization_fields = array();
        foreach ($result as $row) {
            $customization_fields[(int)$row['type']][(int)$row['id_customization_field']][(int)$row['id_lang']] = $row;
        }

        return $customization_fields;
    }

    public function getCustomizationFieldIds()
    {
        if (!Customization::isFeatureActive()) {
            return array();
        }
        return Db::getInstance()->executeS('
			SELECT `id_customization_field`, `type`, `required`
			FROM `'._DB_PREFIX_.'customization_field`
			WHERE `id_product` = '.(int)$this->id);
    }

    public function getRequiredCustomizableFields()
    {
        if (!Customization::isFeatureActive()) {
            return array();
        }
        return Product::getRequiredCustomizableFieldsStatic($this->id);
    }

    public static function getRequiredCustomizableFieldsStatic($id)
    {
        if (!$id || !Customization::isFeatureActive()) {
            return array();
        }
        return Db::getInstance()->executeS('
			SELECT `id_customization_field`, `type`
			FROM `'._DB_PREFIX_.'customization_field`
			WHERE `id_product` = '.(int)$id.'
			AND `required` = 1'
        );
    }

    public function hasAllRequiredCustomizableFields(Context $context = null)
    {
        if (!Customization::isFeatureActive()) {
            return true;
        }
        if (!$context) {
            $context = Context::getContext();
        }

        $fields = $context->cart->getProductCustomization($this->id, null, true);
        if (($required_fields = $this->getRequiredCustomizableFields()) === false) {
            return false;
        }

        $fields_present = array();
        foreach ($fields as $field) {
            $fields_present[] = array('id_customization_field' => $field['index'], 'type' => $field['type']);
        }

        if (is_array($required_fields) && count($required_fields)) {
            foreach ($required_fields as $required_field) {
                if (!in_array($required_field, $fields_present)) {
                    return false;
                }
            }
        }
        return true;
    }


    /**
     * Checks if the product is in at least one of the submited categories
     *
     * @param int $id_product
     * @param array $categories array of category arrays
     * @return bool is the product in at least one category
     */
    public static function idIsOnCategoryId($id_product, $categories)
    {
        if (!((int)$id_product > 0) || !is_array($categories) || empty($categories)) {
            return false;
        }
        $sql = 'SELECT id_product FROM `'._DB_PREFIX_.'category_product` WHERE `id_product` = '.(int)$id_product.' AND `id_category` IN (';
        foreach ($categories as $category) {
            $sql .= (int)$category['id_category'].',';
        }
        $sql = rtrim($sql, ',').')';

        $hash = md5($sql);
        if (!isset(self::$_incat[$hash])) {
            if (!Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($sql)) {
                return false;
            }
            self::$_incat[$hash] = (Db::getInstance(_PS_USE_SQL_SLAVE_)->NumRows() > 0 ? true : false);
        }
        return self::$_incat[$hash];
    }

    public function getNoPackPrice()
    {
        return Pack::noPackPrice((int)$this->id);
    }

    public function checkAccess($id_customer)
    {
        return Product::checkAccessStatic((int)$this->id, (int)$id_customer);
    }

    public static function checkAccessStatic($id_product, $id_customer)
    {
        if (!Group::isFeatureActive()) {
            return true;
        }

        $cache_id = 'Product::checkAccess_'.(int)$id_product.'-'.(int)$id_customer.(!$id_customer ? '-'.(int)Group::getCurrent()->id : '');
        if (!Cache::isStored($cache_id)) {
            if (!$id_customer) {
                $result = (bool)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
				SELECT ctg.`id_group`
				FROM `'._DB_PREFIX_.'category_product` cp
				INNER JOIN `'._DB_PREFIX_.'category_group` ctg ON (ctg.`id_category` = cp.`id_category`)
				WHERE cp.`id_product` = '.(int)$id_product.' AND ctg.`id_group` = '.(int)Group::getCurrent()->id);
            } else {
                $result = (bool)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
				SELECT cg.`id_group`
				FROM `'._DB_PREFIX_.'category_product` cp
				INNER JOIN `'._DB_PREFIX_.'category_group` ctg ON (ctg.`id_category` = cp.`id_category`)
				INNER JOIN `'._DB_PREFIX_.'customer_group` cg ON (cg.`id_group` = ctg.`id_group`)
				WHERE cp.`id_product` = '.(int)$id_product.' AND cg.`id_customer` = '.(int)$id_customer);
            }

            Cache::store($cache_id, $result);
            return $result;
        }
        return Cache::retrieve($cache_id);
    }

    /**
     * Add a stock movement for current product
     *
     * Since 1.5, this method only permit to add/remove available quantities of the current product in the current shop
     *
     * @see StockManager if you want to manage real stock
     * @see StockAvailable if you want to manage available quantities for sale on your shop(s)
     *
     * @deprecated since 1.5.0
     *
     * @param int $quantity
     * @param int $id_reason - useless
     * @param int $id_product_attribute
     * @param int $id_order - DEPRECATED
     * @param int $id_employee - DEPRECATED
     * @return bool
     */
    public function addStockMvt($quantity, $id_reason, $id_product_attribute = null, $id_order = null, $id_employee = null)
    {
        if (!$this->id || !$id_reason) {
            return false;
        }

        if ($id_product_attribute == null) {
            $id_product_attribute = 0;
        }

        $reason = new StockMvtReason((int)$id_reason);
        if (!Validate::isLoadedObject($reason)) {
            return false;
        }

        $quantity = abs((int)$quantity) * $reason->sign;

        return StockAvailable::updateQuantity($this->id, $id_product_attribute, $quantity);
    }

    /**
     * @deprecated since 1.5.0
     */
    public function getStockMvts($id_lang)
    {
        Tools::displayAsDeprecated();

        return Db::getInstance()->executeS('
			SELECT sm.id_stock_mvt, sm.date_add, sm.quantity, sm.id_order,
			CONCAT(pl.name, \' \', GROUP_CONCAT(IFNULL(al.name, \'\'), \'\')) product_name, CONCAT(e.lastname, \' \', e.firstname) employee, mrl.name reason
			FROM `'._DB_PREFIX_.'stock_mvt` sm
			LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (
				sm.id_product = pl.id_product
				AND pl.id_lang = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').'
			)
			LEFT JOIN `'._DB_PREFIX_.'stock_mvt_reason_lang` mrl ON (
				sm.id_stock_mvt_reason = mrl.id_stock_mvt_reason
				AND mrl.id_lang = '.(int)$id_lang.'
			)
			LEFT JOIN `'._DB_PREFIX_.'employee` e ON (
				e.id_employee = sm.id_employee
			)
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (
				pac.id_product_attribute = sm.id_product_attribute
			)
			LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (
				al.id_attribute = pac.id_attribute
				AND al.id_lang = '.(int)$id_lang.'
			)
			WHERE sm.id_product='.(int)$this->id.'
			GROUP BY sm.id_stock_mvt
		');
    }

    public static function getUrlRewriteInformations($id_product)
    {
        return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
			SELECT pl.`id_lang`, pl.`link_rewrite`, p.`ean13`, cl.`link_rewrite` AS category_rewrite
			FROM `'._DB_PREFIX_.'product` p
			LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (p.`id_product` = pl.`id_product`'.Shop::addSqlRestrictionOnLang('pl').')
			'.Shop::addSqlAssociation('product', 'p').'
			LEFT JOIN `'._DB_PREFIX_.'lang` l ON (pl.`id_lang` = l.`id_lang`)
			LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (cl.`id_category` = product_shop.`id_category_default`  AND cl.`id_lang` = pl.`id_lang`'.Shop::addSqlRestrictionOnLang('cl').')
			WHERE p.`id_product` = '.(int)$id_product.'
			AND l.`active` = 1
		');
    }

    public function getIdTaxRulesGroup()
    {
        return $this->id_tax_rules_group;
    }

    public static function getIdTaxRulesGroupByIdProduct($id_product, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }
        $key = 'product_id_tax_rules_group_'.(int)$id_product.'_'.(int)$context->shop->id;
        if (!Cache::isStored($key)) {
            $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
							SELECT `id_tax_rules_group`
							FROM `'._DB_PREFIX_.'product_shop`
							WHERE `id_product` = '.(int)$id_product.' AND id_shop='.(int)$context->shop->id);
            Cache::store($key, (int)$result);
            return (int)$result;
        }
        return Cache::retrieve($key);
    }

    /**
     * Returns tax rate.
     *
     * @param Address|null $address
     * @return float The total taxes rate applied to the product
     */
    public function getTaxesRate(Address $address = null)
    {
        if (!$address || !$address->id_country) {
            $address = Address::initialize();
        }

        $tax_manager = TaxManagerFactory::getManager($address, $this->id_tax_rules_group);
        $tax_calculator = $tax_manager->getTaxCalculator();

        return $tax_calculator->getTotalRate();
    }

    /**
    * Webservice getter : get product features association
    *
    * @return array
    */
    public function getWsProductFeatures()
    {
        $rows = $this->getFeatures();
        foreach ($rows as $keyrow => $row) {
            foreach ($row as $keyfeature => $feature) {
                if ($keyfeature == 'id_feature') {
                    $rows[$keyrow]['id'] = $feature;
                    unset($rows[$keyrow]['id_feature']);
                }
                unset($rows[$keyrow]['id_product']);
                unset($rows[$keyrow]['custom']);
            }
            asort($rows[$keyrow]);
        }
        return $rows;
    }

    /**
     * Webservice setter : set product features association
     *
     * @param $product_features Product Feature ids
     * @return bool
     */
    public function setWsProductFeatures($product_features)
    {
        Db::getInstance()->execute('
			DELETE FROM `'._DB_PREFIX_.'feature_product`
			WHERE `id_product` = '.(int)$this->id
        );
        foreach ($product_features as $product_feature) {
            $this->addFeaturesToDB($product_feature['id'], $product_feature['id_feature_value']);
        }
        return true;
    }

    /**
    * Webservice getter : get virtual field default combination
    *
    * @return int
    */
    public function getWsDefaultCombination()
    {
        return Product::getDefaultAttribute($this->id);
    }

    /**
     * Webservice setter : set virtual field default combination
     *
     * @param int $id_combination id default combination
     * @return bool
     */
    public function setWsDefaultCombination($id_combination)
    {
        $this->deleteDefaultAttributes();
        return $this->setDefaultAttribute((int)$id_combination);
    }

    /**
    * Webservice getter : get category ids of current product for association
    *
    * @return array
    */
    public function getWsCategories()
    {
        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS(
            'SELECT cp.`id_category` AS id
			FROM `'._DB_PREFIX_.'category_product` cp
			LEFT JOIN `'._DB_PREFIX_.'category` c ON (c.id_category = cp.id_category)
			'.Shop::addSqlAssociation('category', 'c').'
			WHERE cp.`id_product` = '.(int)$this->id
        );
        return $result;
    }

    /**
     * Webservice setter : set category ids of current product for association
     *
     * @param array $category_ids category ids
     * @return bool
     */
    public function setWsCategories($category_ids)
    {
        $ids = array();
        foreach ($category_ids as $value) {
            $ids[] = $value['id'];
        }
        if ($this->deleteCategories()) {
            if ($ids) {
                $sql_values = '';
                $ids = array_map('intval', $ids);
                foreach ($ids as $position => $id) {
                    $sql_values[] = '('.(int)$id.', '.(int)$this->id.', '.(int)$position.')';
                }
                $result = Db::getInstance()->execute('
					INSERT INTO `'._DB_PREFIX_.'category_product` (`id_category`, `id_product`, `position`)
					VALUES '.implode(',', $sql_values)
                );
                Hook::exec('updateProduct', array('id_product' => (int)$this->id));
                return $result;
            }
        }
        Hook::exec('updateProduct', array('id_product' => (int)$this->id));
        return true;
    }

    /**
    * Webservice getter : get product accessories ids of current product for association
    *
    * @return array
    */
    public function getWsAccessories()
    {
        $result = Db::getInstance()->executeS(
            'SELECT p.`id_product` AS id
			FROM `'._DB_PREFIX_.'accessory` a
			LEFT JOIN `'._DB_PREFIX_.'product` p ON (p.id_product = a.id_product_2)
			'.Shop::addSqlAssociation('product', 'p').'
			WHERE a.`id_product_1` = '.(int)$this->id
        );

        return $result;
    }

    /**
    * Webservice setter : set product accessories ids of current product for association
    *
    * @param $accessories product ids
    */
    public function setWsAccessories($accessories)
    {
        $this->deleteAccessories();
        foreach ($accessories as $accessory) {
            Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'accessory` (`id_product_1`, `id_product_2`) VALUES ('.(int)$this->id.', '.(int)$accessory['id'].')');
        }

        return true;
    }

    /**
    * Webservice getter : get combination ids of current product for association
    *
    * @return array
    */
    public function getWsCombinations()
    {
        $result = Db::getInstance()->executeS(
            'SELECT pa.`id_product_attribute` as id
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE pa.`id_product` = '.(int)$this->id
        );

        return $result;
    }

    /**
    * Webservice setter : set combination ids of current product for association
    *
    * @param $combinations combination ids
    */
    public function setWsCombinations($combinations)
    {
        // No hook exec
        $ids_new = array();
        foreach ($combinations as $combination) {
            $ids_new[] = (int)$combination['id'];
        }

        $ids_orig = array();
        $original = Db::getInstance()->executeS(
            'SELECT pa.`id_product_attribute` as id
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			WHERE pa.`id_product` = '.(int)$this->id
        );

        if (is_array($original)) {
            foreach ($original as $id) {
                $ids_orig[] = $id['id'];
            }
        }

        $all_ids = array();
        $all = Db::getInstance()->executeS('SELECT pa.`id_product_attribute` as id FROM `'._DB_PREFIX_.'product_attribute` pa '.Shop::addSqlAssociation('product_attribute', 'pa'));
        if (is_array($all)) {
            foreach ($all as $id) {
                $all_ids[] = $id['id'];
            }
        }

        $to_add = array();
        foreach ($ids_new as $id) {
            if (!in_array($id, $ids_orig)) {
                $to_add[] = $id;
            }
        }

        $to_delete = array();
        foreach ($ids_orig as $id) {
            if (!in_array($id, $ids_new)) {
                $to_delete[] = $id;
            }
        }

        // Delete rows
        if (count($to_delete) > 0) {
            foreach ($to_delete as $id) {
                $combination = new Combination($id);
                $combination->delete();
            }
        }

        foreach ($to_add as $id) {
            // Update id_product if exists else create
            if (in_array($id, $all_ids)) {
                Db::getInstance()->execute('UPDATE `'._DB_PREFIX_.'product_attribute` SET id_product = '.(int)$this->id.' WHERE id_product_attribute='.$id);
            } else {
                Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'product_attribute` (`id_product`) VALUES ('.$this->id.')');
            }
        }
        return true;
    }

    /**
    * Webservice getter : get product option ids of current product for association
    *
    * @return array
    */
    public function getWsProductOptionValues()
    {
        $result = Db::getInstance()->executeS('SELECT DISTINCT pac.id_attribute as id
			FROM `'._DB_PREFIX_.'product_attribute` pa
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.id_product_attribute = pa.id_product_attribute)
			WHERE pa.id_product = '.(int)$this->id);
        return $result;
    }

    /**
    * Webservice getter : get virtual field position in category
    *
    * @return int
    */
    public function getWsPositionInCategory()
    {
        $result = Db::getInstance()->executeS('SELECT position
			FROM `'._DB_PREFIX_.'category_product`
			WHERE id_category = '.(int)$this->id_category_default.'
			AND id_product = '.(int)$this->id);
        if (count($result) > 0) {
            return $result[0]['position'];
        }
        return '';
    }

    /**
    * Webservice setter : set virtual field position in category
    *
    * @return bool
    */
    public function setWsPositionInCategory($position)
    {
        if ($position < 0) {
            WebserviceRequest::getInstance()->setError(500, Tools::displayError('You cannot set a negative position, the minimum for a position is 0.'), 134);
        }
        $result = Db::getInstance()->executeS('
			SELECT `id_product`
			FROM `'._DB_PREFIX_.'category_product`
			WHERE `id_category` = '.(int)$this->id_category_default.'
			ORDER BY `position`
		');
        if (($position > 0) && ($position + 1 > count($result))) {
            WebserviceRequest::getInstance()->setError(500, Tools::displayError('You cannot set a position greater than the total number of products in the category, minus 1 (position numbering starts at 0).'), 135);
        }

        foreach ($result as &$value) {
            $value = $value['id_product'];
        }
        $current_position = $this->getWsPositionInCategory();

        if ($current_position && isset($result[$current_position])) {
            $save = $result[$current_position];
            unset($result[$current_position]);
            array_splice($result, (int)$position, 0, $save);
        }

        foreach ($result as $position => $id_product) {
            Db::getInstance()->update('category_product', array(
                'position' => $position,
            ), '`id_category` = '.(int)$this->id_category_default.' AND `id_product` = '.(int)$id_product);
        }
        return true;
    }

    /**
    * Webservice getter : get virtual field id_default_image in category
    *
    * @return int
    */
    public function getCoverWs()
    {
        $result = $this->getCover($this->id);
        return $result['id_image'];
    }

    /**
    * Webservice setter : set virtual field id_default_image in category
    *
    * @return bool
    */
    public function setCoverWs($id_image)
    {
        Db::getInstance()->execute('UPDATE `'._DB_PREFIX_.'image_shop` image_shop, `'._DB_PREFIX_.'image` i
			SET image_shop.`cover` = 0
			WHERE i.`id_product` = '.(int)$this->id.' AND i.id_image = image_shop.id_image
			AND image_shop.id_shop='.(int)Context::getContext()->shop->id);
        Db::getInstance()->execute('UPDATE `'._DB_PREFIX_.'image_shop`
			SET `cover` = 1 WHERE `id_image` = '.(int)$id_image);

        return true;
    }

    /**
    * Webservice getter : get image ids of current product for association
    *
    * @return array
    */
    public function getWsImages()
    {
        return Db::getInstance()->executeS('
		SELECT i.`id_image` as id
		FROM `'._DB_PREFIX_.'image` i
		'.Shop::addSqlAssociation('image', 'i').'
		WHERE i.`id_product` = '.(int)$this->id.'
		ORDER BY i.`position`');
    }

    public function getWsStockAvailables()
    {
        return Db::getInstance()->executeS('SELECT `id_stock_available` id, `id_product_attribute`
														FROM `'._DB_PREFIX_.'stock_available`
														WHERE `id_product`='.($this->id).StockAvailable::addSqlShopRestriction());
    }

    public function getWsTags()
    {
        return Db::getInstance()->executeS('
		SELECT `id_tag` as id
		FROM `'._DB_PREFIX_.'product_tag`
		WHERE `id_product` = '.(int)$this->id);
    }

    /**
    * Webservice setter : set tag ids of current product for association
    *
    * @param $tag_ids tag ids
    */
    public function setWsTags($tag_ids)
    {
        $ids = array();
        foreach ($tag_ids as $value) {
            $ids[] = $value['id'];
        }
        if ($this->deleteWsTags()) {
            if ($ids) {
                $sql_values = '';
                $ids = array_map('intval', $ids);
                foreach ($ids as $position => $id) {
                    $id_lang = Db::getInstance()->getValue('SELECT `id_lang` FROM `'._DB_PREFIX_.'tag` WHERE `id_tag`='.(int)$id);
                    $sql_values[] = '('.(int)$this->id.', '.(int)$id.', '.(int)$id_lang.')';
                }
                $result = Db::getInstance()->execute('
					INSERT INTO `'._DB_PREFIX_.'product_tag` (`id_product`, `id_tag`, `id_lang`)
					VALUES '.implode(',', $sql_values)
                );
                return $result;
            }
        }
        return true;
    }

    /**
    * Delete products tags entries without delete tags for webservice usage
    *
    * @return array Deletion result
    */
    public function deleteWsTags()
    {
        return Db::getInstance()->delete('product_tag', 'id_product = '.(int)$this->id);
    }


    public function getWsManufacturerName()
    {
        return Manufacturer::getNameById((int)$this->id_manufacturer);
    }

    public static function resetEcoTax()
    {
        return ObjectModel::updateMultishopTable('product', array(
            'ecotax' => 0,
        ));
    }

    /**
     * Set Group reduction if needed
     */
    public function setGroupReduction()
    {
        return GroupReduction::setProductReduction($this->id);
    }

    /**
     * Checks if reference exists
     * @return bool
     */
    public function existsRefInDatabase($reference)
    {
        $row = Db::getInstance()->getRow('
		SELECT `reference`
		FROM `'._DB_PREFIX_.'product` p
		WHERE p.reference = "'.pSQL($reference).'"');

        return isset($row['reference']);
    }

    /**
     * Get all product attributes ids
     *
     * @since 1.5.0
     * @param int $id_product the id of the product
     * @return array product attribute id list
     */
    public static function getProductAttributesIds($id_product, $shop_only = false)
    {
        return Db::getInstance()->executeS('
		SELECT pa.id_product_attribute
		FROM `'._DB_PREFIX_.'product_attribute` pa'.
        ($shop_only ? Shop::addSqlAssociation('product_attribute', 'pa') : '').'
		WHERE pa.`id_product` = '.(int)$id_product);
    }

    /**
     * Get label by lang and value by lang too
     * @todo Remove existing module condition
     * @param int $id_product
     * @param int $product_attribute_id
     * @return array
     */
    public static function getAttributesParams($id_product, $id_product_attribute)
    {
        $id_lang = (int)Context::getContext()->language->id;
        $id_shop = (int)Context::getContext()->shop->id;
        $cache_id = 'Product::getAttributesParams_'.(int)$id_product.'-'.(int)$id_product_attribute.'-'.(int)$id_lang.'-'.(int)$id_shop;

        // if blocklayered module is installed we check if user has set custom attribute name
        if (Module::isInstalled('blocklayered') && Module::isEnabled('blocklayered')) {
            $nb_custom_values = Db::getInstance()->executeS('
			SELECT DISTINCT la.`id_attribute`, la.`url_name` as `name`
			FROM `'._DB_PREFIX_.'attribute` a
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
				ON (a.`id_attribute` = pac.`id_attribute`)
			LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
				ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			LEFT JOIN `'._DB_PREFIX_.'layered_indexable_attribute_lang_value` la
				ON (la.`id_attribute` = a.`id_attribute` AND la.`id_lang` = '.(int)$id_lang.')
			WHERE la.`url_name` IS NOT NULL AND la.`url_name` != \'\'
			AND pa.`id_product` = '.(int)$id_product.'
			AND pac.`id_product_attribute` = '.(int)$id_product_attribute);

            if (!empty($nb_custom_values)) {
                $tab_id_attribute = array();
                foreach ($nb_custom_values as $attribute) {
                    $tab_id_attribute[] = $attribute['id_attribute'];

                    $group = Db::getInstance()->executeS('
					SELECT a.`id_attribute`, g.`id_attribute_group`, g.`url_name` as `group`
					FROM `'._DB_PREFIX_.'layered_indexable_attribute_group_lang_value` g
					LEFT JOIN `'._DB_PREFIX_.'attribute` a
						ON (a.`id_attribute_group` = g.`id_attribute_group`)
					WHERE a.`id_attribute` = '.(int)$attribute['id_attribute'].'
					AND g.`id_lang` = '.(int)$id_lang.'
					AND g.`url_name` IS NOT NULL AND g.`url_name` != \'\'');
                    if (empty($group)) {
                        $group = Db::getInstance()->executeS('
						SELECT g.`id_attribute_group`, g.`name` as `group`
						FROM `'._DB_PREFIX_.'attribute_group_lang` g
						LEFT JOIN `'._DB_PREFIX_.'attribute` a
							ON (a.`id_attribute_group` = g.`id_attribute_group`)
						WHERE a.`id_attribute` = '.(int)$attribute['id_attribute'].'
						AND g.`id_lang` = '.(int)$id_lang.'
						AND g.`name` IS NOT NULL');
                    }
                    $result[] = array_merge($attribute, $group[0]);
                }
                $values_not_custom = Db::getInstance()->executeS('
				SELECT DISTINCT a.`id_attribute`, a.`id_attribute_group`, al.`name`, agl.`name` as `group`
				FROM `'._DB_PREFIX_.'attribute` a
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al
					ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)$id_lang.')
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl
					ON (a.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)$id_lang.')
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
					ON (a.`id_attribute` = pac.`id_attribute`)
				LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
					ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				WHERE pa.`id_product` = '.(int)$id_product.'
				AND pac.id_product_attribute = '.(int)$id_product_attribute.'
				AND a.`id_attribute` NOT IN('.implode(', ', $tab_id_attribute).')');
                return array_merge($values_not_custom, $result);
            }
        }

        if (!Cache::isStored($cache_id)) {
            $result = Db::getInstance()->executeS('
			SELECT a.`id_attribute`, a.`id_attribute_group`, al.`name`, agl.`name` as `group`
			FROM `'._DB_PREFIX_.'attribute` a
			LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al
				ON (al.`id_attribute` = a.`id_attribute` AND al.`id_lang` = '.(int)$id_lang.')
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
				ON (pac.`id_attribute` = a.`id_attribute`)
			LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
				ON (pa.`id_product_attribute` = pac.`id_product_attribute`)
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl
				ON (a.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)$id_lang.')
			WHERE pa.`id_product` = '.(int)$id_product.'
				AND pac.`id_product_attribute` = '.(int)$id_product_attribute.'
				AND agl.`id_lang` = '.(int)$id_lang);
            Cache::store($cache_id, $result);
        } else {
            $result = Cache::retrieve($cache_id);
        }
        return $result;
    }

    /**
     * @todo Remove existing module condition
     * @param int $id_product
     */
    public static function getAttributesInformationsByProduct($id_product)
    {
        // if blocklayered module is installed we check if user has set custom attribute name
        if (Module::isInstalled('blocklayered') && Module::isEnabled('blocklayered')) {
            $nb_custom_values = Db::getInstance()->executeS('
			SELECT DISTINCT la.`id_attribute`, la.`url_name` as `attribute`
			FROM `'._DB_PREFIX_.'attribute` a
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
				ON (a.`id_attribute` = pac.`id_attribute`)
			LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
				ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			LEFT JOIN `'._DB_PREFIX_.'layered_indexable_attribute_lang_value` la
				ON (la.`id_attribute` = a.`id_attribute` AND la.`id_lang` = '.(int)Context::getContext()->language->id.')
			WHERE la.`url_name` IS NOT NULL AND la.`url_name` != \'\'
			AND pa.`id_product` = '.(int)$id_product);

            if (!empty($nb_custom_values)) {
                $tab_id_attribute = array();
                foreach ($nb_custom_values as $attribute) {
                    $tab_id_attribute[] = $attribute['id_attribute'];

                    $group = Db::getInstance()->executeS('
					SELECT g.`id_attribute_group`, g.`url_name` as `group`
					FROM `'._DB_PREFIX_.'layered_indexable_attribute_group_lang_value` g
					LEFT JOIN `'._DB_PREFIX_.'attribute` a
						ON (a.`id_attribute_group` = g.`id_attribute_group`)
					WHERE a.`id_attribute` = '.(int)$attribute['id_attribute'].'
					AND g.`id_lang` = '.(int)Context::getContext()->language->id.'
					AND g.`url_name` IS NOT NULL AND g.`url_name` != \'\'');
                    if (empty($group)) {
                        $group = Db::getInstance()->executeS('
						SELECT g.`id_attribute_group`, g.`name` as `group`
						FROM `'._DB_PREFIX_.'attribute_group_lang` g
						LEFT JOIN `'._DB_PREFIX_.'attribute` a
							ON (a.`id_attribute_group` = g.`id_attribute_group`)
						WHERE a.`id_attribute` = '.(int)$attribute['id_attribute'].'
						AND g.`id_lang` = '.(int)Context::getContext()->language->id.'
						AND g.`name` IS NOT NULL');
                    }
                    $result[] = array_merge($attribute, $group[0]);
                }
                $values_not_custom = Db::getInstance()->executeS('
				SELECT DISTINCT a.`id_attribute`, a.`id_attribute_group`, al.`name` as `attribute`, agl.`name` as `group`
				FROM `'._DB_PREFIX_.'attribute` a
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al
					ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)Context::getContext()->language->id.')
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl
					ON (a.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)Context::getContext()->language->id.')
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
					ON (a.`id_attribute` = pac.`id_attribute`)
				LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
					ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				'.Shop::addSqlAssociation('attribute', 'pac').'
				WHERE pa.`id_product` = '.(int)$id_product.'
				AND a.`id_attribute` NOT IN('.implode(', ', $tab_id_attribute).')');
                $result = array_merge($values_not_custom, $result);
            } else {
                $result = Db::getInstance()->executeS('
				SELECT DISTINCT a.`id_attribute`, a.`id_attribute_group`, al.`name` as `attribute`, agl.`name` as `group`
				FROM `'._DB_PREFIX_.'attribute` a
				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al
					ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)Context::getContext()->language->id.')
				LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl
					ON (a.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)Context::getContext()->language->id.')
				LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
					ON (a.`id_attribute` = pac.`id_attribute`)
				LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
					ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
				'.Shop::addSqlAssociation('product_attribute', 'pa').'
				'.Shop::addSqlAssociation('attribute', 'pac').'
				WHERE pa.`id_product` = '.(int)$id_product);
            }
        } else {
            $result = Db::getInstance()->executeS('
			SELECT DISTINCT a.`id_attribute`, a.`id_attribute_group`, al.`name` as `attribute`, agl.`name` as `group`
			FROM `'._DB_PREFIX_.'attribute` a
			LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al
				ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)Context::getContext()->language->id.')
			LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl
				ON (a.`id_attribute_group` = agl.`id_attribute_group` AND agl.`id_lang` = '.(int)Context::getContext()->language->id.')
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac
				ON (a.`id_attribute` = pac.`id_attribute`)
			LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa
				ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
			'.Shop::addSqlAssociation('product_attribute', 'pa').'
			'.Shop::addSqlAssociation('attribute', 'pac').'
			WHERE pa.`id_product` = '.(int)$id_product);
        }
        return $result;
    }

    /**
     * Get the combination url anchor of the product
     *
     * @param int $id_product_attribute
     * @return string
     */
    public function getAnchor($id_product_attribute, $with_id = false)
    {
        $attributes = Product::getAttributesParams($this->id, $id_product_attribute);
        $anchor = '#';
        $sep = Configuration::get('PS_ATTRIBUTE_ANCHOR_SEPARATOR');
        foreach ($attributes as &$a) {
            foreach ($a as &$b) {
                $b = str_replace($sep, '_', Tools::link_rewrite($b));
            }
            $anchor .= '/'.($with_id && isset($a['id_attribute']) && $a['id_attribute']? (int)$a['id_attribute'].$sep : '').$a['group'].$sep.$a['name'];
        }
        return $anchor;
    }

    /**
     * Gets the name of a given product, in the given lang
     *
     * @since 1.5.0
     * @param int $id_product
     * @param int $id_product_attribute Optional
     * @param int $id_lang Optional
     * @return string
     */
    public static function getProductName($id_product, $id_product_attribute = null, $id_lang = null)
    {
        // use the lang in the context if $id_lang is not defined
        if (!$id_lang) {
            $id_lang = (int)Context::getContext()->language->id;
        }

        // creates the query object
        $query = new DbQuery();

        // selects different names, if it is a combination
        if ($id_product_attribute) {
            $query->select('IFNULL(CONCAT(pl.name, \' : \', GROUP_CONCAT(DISTINCT agl.`name`, \' - \', al.name SEPARATOR \', \')),pl.name) as name');
        } else {
            $query->select('DISTINCT pl.name as name');
        }

        // adds joins & where clauses for combinations
        if ($id_product_attribute) {
            $query->from('product_attribute', 'pa');
            $query->join(Shop::addSqlAssociation('product_attribute', 'pa'));
            $query->innerJoin('product_lang', 'pl', 'pl.id_product = pa.id_product AND pl.id_lang = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl'));
            $query->leftJoin('product_attribute_combination', 'pac', 'pac.id_product_attribute = pa.id_product_attribute');
            $query->leftJoin('attribute', 'atr', 'atr.id_attribute = pac.id_attribute');
            $query->leftJoin('attribute_lang', 'al', 'al.id_attribute = atr.id_attribute AND al.id_lang = '.(int)$id_lang);
            $query->leftJoin('attribute_group_lang', 'agl', 'agl.id_attribute_group = atr.id_attribute_group AND agl.id_lang = '.(int)$id_lang);
            $query->where('pa.id_product = '.(int)$id_product.' AND pa.id_product_attribute = '.(int)$id_product_attribute);
        } else {
            // or just adds a 'where' clause for a simple product

            $query->from('product_lang', 'pl');
            $query->where('pl.id_product = '.(int)$id_product);
            $query->where('pl.id_lang = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl'));
        }

        return Db::getInstance()->getValue($query);
    }

    public function addWs($autodate = true, $null_values = false)
    {
        $success = $this->add($autodate, $null_values);
        if ($success && Configuration::get('PS_SEARCH_INDEXATION')) {
            Search::indexation(false, $this->id);
        }
        return $success;
    }

    public function updateWs($null_values = false)
    {
        $success = parent::update($null_values);
        if ($success && Configuration::get('PS_SEARCH_INDEXATION')) {
            Search::indexation(false, $this->id);
        }
        Hook::exec('updateProduct', array('id_product' => (int)$this->id));
        return $success;
    }

    /**
     * For a given product, returns its real quantity
     *
     * @since 1.5.0
     * @param int $id_product
     * @param int $id_product_attribute
     * @param int $id_warehouse
     * @param int $id_shop
     * @return int real_quantity
     */
    public static function getRealQuantity($id_product, $id_product_attribute = 0, $id_warehouse = 0, $id_shop = null)
    {
        static $manager = null;

        if (Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT') && is_null($manager)) {
            $manager = StockManagerFactory::getManager();
        }

        if (Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT') && Product::usesAdvancedStockManagement($id_product) &&
            StockAvailable::dependsOnStock($id_product, $id_shop)) {
            return $manager->getProductRealQuantities($id_product, $id_product_attribute, $id_warehouse, true);
        } else {
            return StockAvailable::getQuantityAvailableByProduct($id_product, $id_product_attribute, $id_shop);
        }
    }

    /**
     * For a given product, tells if it uses the advanced stock management
     *
     * @since 1.5.0
     * @param int $id_product
     * @return bool
     */
    public static function usesAdvancedStockManagement($id_product)
    {
        $query = new DbQuery;
        $query->select('product_shop.advanced_stock_management');
        $query->from('product', 'p');
        $query->join(Shop::addSqlAssociation('product', 'p'));
        $query->where('p.id_product = '.(int)$id_product);

        return (bool)Db::getInstance()->getValue($query);
    }

    /**
     * This method allows to flush price cache
     *
     * @since 1.5.0
     */
    public static function flushPriceCache()
    {
        self::$_prices = array();
        self::$_pricesLevel2 = array();
    }

    /**
     * Get list of parent categories
     *
     * @since 1.5.0
     * @param int $id_lang
     * @return array
     */
    public function getParentCategories($id_lang = null)
    {
        if (!$id_lang) {
            $id_lang = Context::getContext()->language->id;
        }

        $interval = Category::getInterval($this->id_category_default);
        $sql = new DbQuery();
        $sql->from('category', 'c');
        $sql->leftJoin('category_lang', 'cl', 'c.id_category = cl.id_category AND id_lang = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('cl'));
        $sql->where('c.nleft <= '.(int)$interval['nleft'].' AND c.nright >= '.(int)$interval['nright']);
        $sql->orderBy('c.nleft');

        return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
    }

    /**
     * Fill the variables used for stock management
     */
    public function loadStockData()
    {
        if (Validate::isLoadedObject($this)) {
            // By default, the product quantity correspond to the available quantity to sell in the current shop
            $this->quantity = StockAvailable::getQuantityAvailableByProduct($this->id, 0);
            $this->out_of_stock = StockAvailable::outOfStock($this->id);
            $this->depends_on_stock = StockAvailable::dependsOnStock($this->id);
            if (Context::getContext()->shop->getContext() == Shop::CONTEXT_GROUP && Context::getContext()->shop->getContextShopGroup()->share_stock == 1) {
                $this->advanced_stock_management = $this->useAdvancedStockManagement();
            }
        }
    }

    public function useAdvancedStockManagement()
    {
        return Db::getInstance()->getValue('
					SELECT `advanced_stock_management`
					FROM '._DB_PREFIX_.'product_shop
					WHERE id_product='.(int)$this->id.Shop::addSqlRestriction()
                );
    }

    public function setAdvancedStockManagement($value)
    {
        $this->advanced_stock_management = (int)$value;
        if (Context::getContext()->shop->getContext() == Shop::CONTEXT_GROUP && Context::getContext()->shop->getContextShopGroup()->share_stock == 1) {
            Db::getInstance()->execute('
				UPDATE `'._DB_PREFIX_.'product_shop`
				SET `advanced_stock_management`='.(int)$value.'
				WHERE id_product='.(int)$this->id.Shop::addSqlRestriction()
            );
        } else {
            $this->setFieldsToUpdate(array('advanced_stock_management' => true));
            $this->save();
        }
    }

    /**
     * get the default category according to the shop
     */
    public function getDefaultCategory()
    {
        $default_category = Db::getInstance()->getValue('
			SELECT product_shop.`id_category_default`
			FROM `'._DB_PREFIX_.'product` p
			'.Shop::addSqlAssociation('product', 'p').'
			WHERE p.`id_product` = '.(int)$this->id);

        if (!$default_category) {
            return array('id_category_default' => Context::getContext()->shop->id_category);
        } else {
            return $default_category;
        }
    }

    public static function getShopsByProduct($id_product)
    {
        return Db::getInstance()->executeS('
			SELECT `id_shop`
			FROM `'._DB_PREFIX_.'product_shop`
			WHERE `id_product` = '.(int)$id_product);
    }

    /**
     * Remove all downloadable files for product and its attributes
     *
     * @return bool
     */
    public function deleteDownload()
    {
        $result = true;
        $collection_download = new PrestaShopCollection('ProductDownload');
        $collection_download->where('id_product', '=', $this->id);
        foreach ($collection_download as $product_download) {
            /** @var ProductDownload $product_download */
            $result &= $product_download->delete($product_download->checkFile());
        }
        return $result;
    }

    /**
     * @deprecated 1.5.0.10
     * @see Product::getAttributeCombinations()
     * @param int $id_lang
     */
    public function getAttributeCombinaisons($id_lang)
    {
        Tools::displayAsDeprecated('Use Product::getAttributeCombinations($id_lang)');
        return $this->getAttributeCombinations($id_lang);
    }

    /**
     * @deprecated 1.5.0.10
     * @see Product::deleteAttributeCombination()
     * @param int $id_product_attribute
     */
    public function deleteAttributeCombinaison($id_product_attribute)
    {
        Tools::displayAsDeprecated('Use Product::deleteAttributeCombination($id_product_attribute)');
        return $this->deleteAttributeCombination($id_product_attribute);
    }

    /**
     * Get the product type (simple, virtual, pack)
     * @since in 1.5.0
     *
     * @return int
     */
    public function getType()
    {
        if (!$this->id) {
            return Product::PTYPE_SIMPLE;
        }
        if (Pack::isPack($this->id)) {
            return Product::PTYPE_PACK;
        }
        if ($this->is_virtual) {
            return Product::PTYPE_VIRTUAL;
        }

        return Product::PTYPE_SIMPLE;
    }

    public function hasAttributesInOtherShops()
    {
        return (bool)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT pa.id_product_attribute
			FROM `'._DB_PREFIX_.'product_attribute` pa
			LEFT JOIN `'._DB_PREFIX_.'product_attribute_shop` pas ON (pa.`id_product_attribute` = pas.`id_product_attribute`)
			WHERE pa.`id_product` = '.(int)$this->id
        );
    }

    public static function getIdTaxRulesGroupMostUsed()
    {
        return Db::getInstance()->getValue('
					SELECT id_tax_rules_group
					FROM (
						SELECT COUNT(*) n, product_shop.id_tax_rules_group
						FROM '._DB_PREFIX_.'product p
						'.Shop::addSqlAssociation('product', 'p').'
						JOIN '._DB_PREFIX_.'tax_rules_group trg ON (product_shop.id_tax_rules_group = trg.id_tax_rules_group)
						WHERE trg.active = 1 AND trg.deleted = 0
						GROUP BY product_shop.id_tax_rules_group
						ORDER BY n DESC
						LIMIT 1
					) most_used'
                );
    }

    /**
     * For a given ean13 reference, returns the corresponding id
     *
     * @param string $ean13
     * @return int id
     */
    public static function getIdByEan13($ean13)
    {
        if (empty($ean13)) {
            return 0;
        }

        if (!Validate::isEan13($ean13)) {
            return 0;
        }

        $query = new DbQuery();
        $query->select('p.id_product');
        $query->from('product', 'p');
        $query->where('p.ean13 = \''.pSQL($ean13).'\'');

        return Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($query);
    }

    public function getWsType()
    {
        $type_information = array(
            Product::PTYPE_SIMPLE => 'simple',
            Product::PTYPE_PACK => 'pack',
            Product::PTYPE_VIRTUAL => 'virtual',
        );
        return $type_information[$this->getType()];
    }

    /*
        Create the link rewrite if not exists or invalid on product creation
    */
    public function modifierWsLinkRewrite()
    {
        foreach ($this->name as $id_lang => $name) {
            if (empty($this->link_rewrite[$id_lang])) {
                $this->link_rewrite[$id_lang] = Tools::link_rewrite($name);
            } elseif (!Validate::isLinkRewrite($this->link_rewrite[$id_lang])) {
                $this->link_rewrite[$id_lang] = Tools::link_rewrite($this->link_rewrite[$id_lang]);
            }
        }

        return true;
    }

    public function getWsProductBundle()
    {
        return Db::getInstance()->executeS('SELECT id_product_item as id, quantity FROM '._DB_PREFIX_.'pack WHERE id_product_pack = '.(int)$this->id);
    }

    public function setWsType($type_str)
    {
        $reverse_type_information = array(
            'simple' => Product::PTYPE_SIMPLE,
            'pack' => Product::PTYPE_PACK,
            'virtual' => Product::PTYPE_VIRTUAL,
        );

        if (!isset($reverse_type_information[$type_str])) {
            return false;
        }

        $type = $reverse_type_information[$type_str];

        if (Pack::isPack((int)$this->id) && $type != Product::PTYPE_PACK) {
            Pack::deleteItems($this->id);
        }

        $this->cache_is_pack = ($type == Product::PTYPE_PACK);
        $this->is_virtual = ($type == Product::PTYPE_VIRTUAL);

        return true;
    }

    public function setWsProductBundle($items)
    {
        if ($this->is_virtual) {
            return false;
        }

        Pack::deleteItems($this->id);

        foreach ($items as $item) {
            if ((int)$item['id'] > 0) {
                Pack::addItem($this->id, (int)$item['id'], (int)$item['quantity']);
            }
        }
        return true;
    }

    public function isColorUnavailable($id_attribute, $id_shop)
    {
        return Db::getInstance()->getValue('
			SELECT sa.id_product_attribute
			FROM '._DB_PREFIX_.'stock_available sa
			WHERE id_product='.(int)$this->id.' AND quantity <= 0
			'.StockAvailable::addSqlShopRestriction(null, $id_shop, 'sa').'
			AND EXISTS (
				SELECT 1
				FROM '._DB_PREFIX_.'product_attribute pa
				JOIN '._DB_PREFIX_.'product_attribute_shop product_attribute_shop
					ON (product_attribute_shop.id_product_attribute = pa.id_product_attribute AND product_attribute_shop.id_shop='.(int)$id_shop.')
				JOIN '._DB_PREFIX_.'product_attribute_combination pac
					ON (pac.id_product_attribute AND product_attribute_shop.id_product_attribute)
				WHERE sa.id_product_attribute = pa.id_product_attribute AND pa.id_product='.(int)$this->id.' AND pac.id_attribute='.(int)$id_attribute.'
			)'
        );
    }

    public static function getColorsListCacheId($id_product, $full = true)
    {
        $cache_id = 'productlist_colors';
        if ($id_product) {
            $cache_id .= '|'.(int)$id_product;
        }

        if ($full) {
            $cache_id .= '|'.(int)Context::getContext()->shop->id.'|'.(int)Context::getContext()->cookie->id_lang;
        }

        return $cache_id;
    }

    public static function setPackStockType($id_product, $pack_stock_type)
    {
        return Db::getInstance()->execute('UPDATE '._DB_PREFIX_.'product p
		'.Shop::addSqlAssociation('product', 'p').' SET product_shop.pack_stock_type = '.(int)$pack_stock_type.' WHERE p.`id_product` = '.(int)$id_product);
    }
}
