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This tutorial applies the same method used in the previous one to Filter by country in the PrestaShop Order list.

Open up AdminProductsController.php located in controllers/admin. You can either modify the original or create an override for it.

Locate the following join, at around line 179, inside the construct method

        $this->_join .= ' JOIN `'._DB_PREFIX_.'product_shop` sa ON (a.`id_product` = sa.`id_product` AND sa.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON ('.$alias.'.`id_category_default` = cl.`id_category` AND b.`id_lang` = cl.`id_lang` AND cl.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'shop` shop ON (shop.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'image_shop` image_shop ON (image_shop.`id_product` = a.`id_product` AND image_shop.`cover` = 1 AND image_shop.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_image` = image_shop.`id_image`)
                LEFT JOIN `'._DB_PREFIX_.'product_download` pd ON (pd.`id_product` = a.`id_product`)';

Before the last line, join the manufacturer table:

        $this->_join .= ' JOIN `'._DB_PREFIX_.'product_shop` sa ON (a.`id_product` = sa.`id_product` AND sa.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON ('.$alias.'.`id_category_default` = cl.`id_category` AND b.`id_lang` = cl.`id_lang` AND cl.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'shop` shop ON (shop.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'image_shop` image_shop ON (image_shop.`id_product` = a.`id_product` AND image_shop.`cover` = 1 AND image_shop.id_shop = '.$id_shop.')
                LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_image` = image_shop.`id_image`)
                LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON (m.`id_manufacturer` = a.`id_manufacturer`)
                LEFT JOIN `'._DB_PREFIX_.'product_download` pd ON (pd.`id_product` = a.`id_product`)';

Next, right after that join, let’s select the manufacturer name, giving it an alias so that it does not conflict with the product name:

$this->_select .= 'm.`name` AS `manufacturer_name`, ';

Lastly, we need to add the manufacturer name as column, in the products list. I added it right before $this->fields_list[‘name’]:

$this->fields_list['manufacturer_name'] = array(
            'title' => $this->l('Manufacturer'),
            'filter_key' => 'm!name',
            'orderby' => true,
        );

Save and refresh.
We are done!

The post Filter Products By Manufacturer in the PrestaShop Back Office appeared first on NemoPS.