按属性列出产品 prestashop

Question

我是 prestashop 1.6 开发的新手，我想创建一个模块，允许根据产品的不同属性列出产品 例如：我们有两种颜色（黑色和蓝色）和两种尺码（L，XL）的牛仔裤，页面显示四种产品（黑色L，黑色XL，蓝色L，蓝色XL），如图 listing example

你能指导我完成这个模块吗

Answer 1

有一个付费模块可以完美实现这一目标：https://addons.prestashop.com/en/combinaisons-customization/31071-show-combinations-or-product-attributes-in-product-list.html

或者，您还可以覆盖 Category 类中存在的 getProducts() 方法，并在 Category 控制器中调用。

这是一个与 PrestaShop 1.6.x 版本兼容的基本示例：

1. 在 /override/classes/ 中创建一个空的 Category.php 文件
2. 删除文件/cache/class_index.php
3. 在 /override/classes/Category.php 中添加 getProducts() 方法

class Category extends CategoryCore
{
    public function getProducts($id_lang, $p, $n, $order_by = null, $order_way = null, $get_total = false, $active = true, $random = false, $random_number_products = 1, $check_access = true, Context $context = null)
    {
        if (!$context) {
            $context = Context::getContext();
        }

        if ($check_access && !$this->checkAccess($context->customer->id)) {
            return false;
        }

        $front = in_array($context->controller->controller_type, array('front', 'modulefront'));
        $id_supplier = (int)Tools::getValue('id_supplier');

        /** Return only the number of products */
        if ($get_total) {
            $sql = 'SELECT COUNT(cp.`id_product`) AS total
                    FROM `'._DB_PREFIX_.'product` p
                    '.Shop::addSqlAssociation('product', 'p').'
                    LEFT JOIN `'._DB_PREFIX_.'category_product` cp ON p.`id_product` = cp.`id_product`
                    LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa ON pa.`id_product` = p.`id_product`
                    WHERE cp.`id_category` = '.(int)$this->id.
                ($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '').
                ($active ? ' AND product_shop.`active` = 1' : '').
                ($id_supplier ? 'AND p.id_supplier = '.(int)$id_supplier : '');

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

        if ($p < 1) {
            $p = 1;
        }

        /** Tools::strtolower is a fix for all modules which are now using lowercase values for 'orderBy' parameter */
        $order_by  = Validate::isOrderBy($order_by)   ? Tools::strtolower($order_by)  : 'position';
        $order_way = Validate::isOrderWay($order_way) ? Tools::strtoupper($order_way) : 'ASC';

        $order_by_prefix = false;
        if ($order_by == 'id_product' || $order_by == 'date_add' || $order_by == 'date_upd') {
            $order_by_prefix = 'p';
        } elseif ($order_by == 'name') {
            $order_by_prefix = 'pl';
        } elseif ($order_by == 'manufacturer' || $order_by == 'manufacturer_name') {
            $order_by_prefix = 'm';
            $order_by = 'name';
        } elseif ($order_by == 'position') {
            $order_by_prefix = 'cp';
        }

        if ($order_by == 'price') {
            $order_by = 'orderprice';
        }

        $nb_days_new_product = Configuration::get('PS_NB_DAYS_NEW_PRODUCT');
        if (!Validate::isUnsignedInt($nb_days_new_product)) {
            $nb_days_new_product = 20;
        }

        $sql = 'SELECT p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) AS quantity'.(Combination::isFeatureActive() ? ', IFNULL(product_attribute_shop.id_product_attribute, 0) AS id_product_attribute,
                    product_attribute_shop.minimal_quantity AS product_attribute_minimal_quantity' : '').', pl.`description`, pl.`description_short`, pl.`available_now`,
                    pl.`available_later`, pl.`link_rewrite`, pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`, pl.`name`, image_shop.`id_image` id_image,
                    il.`legend` as legend, m.`name` AS manufacturer_name, cl.`name` AS category_default,
                    DATEDIFF(product_shop.`date_add`, DATE_SUB("'.date('Y-m-d').' 00:00:00",
                    INTERVAL '.(int)$nb_days_new_product.' DAY)) > 0 AS new, product_shop.price AS orderprice, pa.id_product_attribute
                FROM `'._DB_PREFIX_.'category_product` cp
                LEFT JOIN `'._DB_PREFIX_.'product` p
                    ON p.`id_product` = cp.`id_product`
                '.Shop::addSqlAssociation('product', 'p').
                (Combination::isFeatureActive() ? ' 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)$context->shop->id.')':'').'
                '.Product::sqlStock('p', 0).'
                LEFT JOIN `'._DB_PREFIX_.'category_lang` cl
                    ON (product_shop.`id_category_default` = cl.`id_category`
                    AND cl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('cl').')
                LEFT JOIN `'._DB_PREFIX_.'product_lang` pl
                    ON (p.`id_product` = pl.`id_product`
                    AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').')
                LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa ON pa.`id_product` = p.`id_product`
                LEFT JOIN `'._DB_PREFIX_.'product_attribute_image` pai ON (pai.`id_product_attribute` = pa.`id_product_attribute`)
                LEFT JOIN `'._DB_PREFIX_.'image_shop` image_shop ON (image_shop.`id_image` = pai.`id_image` AND image_shop.cover=1 AND image_shop.id_shop='.(int)$context->shop->id.')
                LEFT JOIN `'._DB_PREFIX_.'image_lang` il
                    ON (image_shop.`id_image` = il.`id_image`
                    AND il.`id_lang` = '.(int)$id_lang.')
                LEFT JOIN `'._DB_PREFIX_.'manufacturer` m
                    ON m.`id_manufacturer` = p.`id_manufacturer`
                WHERE product_shop.`id_shop` = '.(int)$context->shop->id.'
                    AND cp.`id_category` = '.(int)$this->id
                    .($active ? ' AND product_shop.`active` = 1' : '')
                    .($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '')
                    .($id_supplier ? ' AND p.id_supplier = '.(int)$id_supplier : '');

        if ($random === true) {
            $sql .= ' ORDER BY RAND() LIMIT '.(int)$random_number_products;
        } else {
            $sql .= ' ORDER BY '.(!empty($order_by_prefix) ? $order_by_prefix.'.' : '').'`'.bqSQL($order_by).'` '.pSQL($order_way).'
            LIMIT '.(((int)$p - 1) * (int)$n).','.(int)$n;
        }

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

        if (!$result) {
            return array();
        }

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

        /* Extended name */
        foreach ($result as &$p)
        {
            $attributes = Db::getInstance()->ExecuteS('
            SELECT al.name
            FROM '._DB_PREFIX_.'attribute_lang al
            WHERE al.id_attribute IN (SELECT pac.id_attribute FROM '._DB_PREFIX_.'product_attribute_combination pac WHERE pac.id_product_attribute = '.(int)$p['id_product_attribute'].')
            AND al.id_lang = '.(int)$id_lang);

            $extended_name = $p['name'].' (';
            foreach ($attributes as $a)
                $extended_name .= $a['name'].', ';

            $p['name'] = rtrim($extended_name, ', ').')';
        }

        /** Modify SQL result */
        return Product::getProductsProperties($id_lang, $result);
    }
}

这将显示每个产品的所有可用组合，并选择正确的封面图片以及详细名称（例如“我的连衣裙（红色，M）”）。这个例子并不完美，分页和库存也必须调整，但你明白了。