如何从 opencart 3 管理面板中的 MySQL 查询中获取另一列值？

Question

下面的代码使用 2 tables "category_path" 和 "category_description" 来获取所有类别和子类别的 id=>name。我不擅长 mySql，所以如果你能帮助我，我将不胜感激。在此函数中，我还需要从名为 'category'

的另一个（第三个）table 中获取 'cat_name' 列的值

https://i.stack.imgur.com/1PC4A.jpg

public function getCategories($data = array()) {
    $sql = "SELECT cp.category_id AS category_id, 
                GROUP_CONCAT(cd1.name ORDER BY cp.level SEPARATOR '&nbsp;&nbsp;&gt;&nbsp;&nbsp;') AS name, 
                c1.parent_id, c1.sort_order 
            FROM " . DB_PREFIX . "category_path cp 
                LEFT JOIN " . DB_PREFIX . "category c1 ON (cp.category_id = c1.category_id) 
                LEFT JOIN " . DB_PREFIX . "category c2 ON (cp.path_id = c2.category_id) 
                LEFT JOIN " . DB_PREFIX . "category_description cd1 ON (cp.path_id = cd1.category_id) 
                LEFT JOIN " . DB_PREFIX . "category_description cd2 ON (cp.category_id = cd2.category_id)  
            WHERE cd1.language_id = '" . (int)$this->config->get('config_language_id') . "' 
            AND cd2.language_id = '" . (int)$this->config->get('config_language_id') . "'";

Answer 1

您已经在第一个连接中使用 category table 并且给它起了一个别名 c1 所以

SELECT cp.category_id AS category_id, c1.cat_name,
. . .

. . .

如何从 opencart 3 管理面板中的 MySQL 查询中获取另一列值？

How to get another column values from MySQL Query in opencart3 admin panel?

php

mysql

opencart-3