我正在使用Opencart 2.2.0。我有两个客户组-默认客户和批发客户。在我的整个网站中，price字段是默认组，wholesale字段是批发客户组。我还在特殊选项卡中的wholesale字段中添加了oc_product_special字段（到price表中），一切正常（它记住了admin中的值，并且被前面两组的特殊价格添加到购物车中我唯一的问题是它无法在前端正确显示。这意味着它显示两个客户组的特殊wholesale字段中的值，而不是显示批发客户的model/catalog/product file特殊价格。我在wholesale的查询中找出了问题所在。我想知道如何更改以下查询，以便可以包含$query = $this->db->query("SELECT DISTINCT *, pd.name AS name, p.image, m.name AS manufacturer, (SELECT price FROM " . DB_PREFIX . "product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND pd2.quantity = '1' AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < NOW()) AND (pd2.date_end = '0000-00-00' OR pd2.date_end > NOW())) ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, **(SELECT price FROM " . DB_PREFIX . "product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special,** (SELECT points FROM " . DB_PREFIX . "product_reward pr WHERE pr.product_id = p.product_id AND customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "') AS reward, (SELECT ss.name FROM " . DB_PREFIX . "stock_status ss WHERE ss.stock_status_id = p.stock_status_id AND ss.language_id = '" . (int)$this->config->get('config_language_id') . "') AS stock_status, (SELECT wcd.unit FROM " . DB_PREFIX . "weight_class_description wcd WHERE p.weight_class_id = wcd.weight_class_id AND wcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS weight_class, (SELECT lcd.unit FROM " . DB_PREFIX . "length_class_description lcd WHERE p.length_class_id = lcd.length_class_id AND lcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS length_class, (SELECT AVG(rating) AS total FROM " . DB_PREFIX . "review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating, (SELECT COUNT(*) AS total FROM " . DB_PREFIX . "review r2 WHERE r2.product_id = p.product_id AND r2.status = '1' GROUP BY r2.product_id) AS reviews, p.sort_order FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) LEFT JOIN " . DB_PREFIX . "manufacturer m ON (p.manufacturer_id = m.manufacturer_id) WHERE p.product_id = '" . (int)$product_id . "' AND pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'");
字段，因为只有这样我才能在前端显示它。我的查询是：
(SELECT price FROM " . DB_PREFIX . "product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special,
查询的特殊部分是：
patternSourceCanvas感谢
答案 0 :(得分：0)
我解决了这个问题...如果有人卡在同一个地方，这就是我所做的：
我在查询中添加了另一行（子查询），在其中我定义了special_wholesale，如下所示：
SELECT wholesale FROM " . DB_PREFIX . "product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.wholesale ASC LIMIT 1) AS special_wholesale
以及定义的'special_wholesale' => $query->row['special_wholesale']，位于'special'函数内catalog/model/catalog/product.php文件中的public function getProduct($product_id)数组元素下面的查询数组中。
然后，我在控制器文件中为特色产品（$special_wholesale）定义了/catalog/controller/module/featured.php变量。
我做的最后一件事是像这样在Featured.php $product['special_wholesale'];文件中调用(/catalog/view/theme/your-theme-name/template/module/featured.tpl)：
<font size="2" color="red"> <span class="price-new"><?php echo "VP:" . $product['special_wholesale']; ?></span> <span class="price-old"><?php echo "VP:". $product['wholesale']; ?></span></font></br>
输出为：剔除旧批发价并显示特殊批发价。
我希望这可以帮助某人。干杯！