Сопутствующие товары Opencart

У товаров есть замечательное свойство- связанные товары. Opencart одновременно проставляет связи и на текущий товар и на выбранный товар, и это очень грустно, ибо не всегда нужен такой принцип работы. Давайте это исправлять:

Открываем: /admin/model/catalog/product.php

if (isset($data['product_related'])) {
foreach ($data['product_related'] as $related_id) {
$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . $this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$product_id . "', related_id = '" . (int)$related_id . "'");
$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$related_id . "' AND related_id = '" . (int)$product_id . "'");
$this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$related_id . "', related_id = '" . (int)$product_id . "'"); }
}

Комментируем лишнее и получаем:

if (isset($data['product_related'])) {
foreach ($data['product_related'] as $related_id) { $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . $this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$product_id . "', related_id = '" . (int)$related_id . "'");
//$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$related_id . "' AND related_id = '" . (int)$product_id . "'");
//$this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$related_id . "', related_id = '" . (int)$product_id . "'"); }
}

Далее находим:

$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "'");
$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE related_id = '" . (int)$product_id . "'");
if (isset($data['product_related'])) {
foreach ($data['product_related'] as $related_id) {
$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "' AND related_id = '" . (int)$related_id . "'");
$this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$product_id . "', related_id = '" . (int)$related_id . "'");
$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$related_id . "' AND related_id = '" . (int)$product_id . "'");
$this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$related_id . "', related_id = '" . (int)$product_id . "'"); }
}

Опять комментируем лишнее:

$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "'");
//$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE related_id = '" . (int)$product_id . "'");
if (isset($data['product_related'])) {
foreach ($data['product_related'] as $related_id) {
$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "' AND related_id = '" . (int)$related_id . "'");
$this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$product_id . "', related_id = '" . (int)$related_id . "'");
//$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$related_id . "' AND related_id = '" . (int)$product_id . "'");
//$this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$related_id . "', related_id = '" . (int)$product_id . "'"); } }

Комментируем строчку:

$this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE related_id = '" . (int)$product_id . "'");

Все, теперь модуль работает так, как нам нужно: мы прикрепили товар, и он не отобразился в прикрепленного в сопутствующих.