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我对 opencart 很陌生，我想知道如何修改搜索功能以按选项或价格搜索产品。我的大学有一个项目，我需要创建这样的功能。

你能告诉我怎么做吗？我需要一个例子。

谢谢！

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1 回答 1

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我在这个例子中使用 Opencart 1.5.3.1

您需要修改 getProducts() 函数。搜索查询在构建时如下所示：

SELECT p.product_id, (SELECT AVG(rating) AS total FROM review r1 WHERE r1.product_id =
p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating FROM product p LEFT
JOIN product_description pd ON (p.product_id = pd.product_id) LEFT JOIN product_to_store  
p2s ON (p.product_id = p2s.product_id) LEFT JOIN product_tag pt ON (p.product_id = 
pt.product_id) WHERE pd.language_id = '1' AND p.status = '1' AND p.date_available <= NOW  
() AND p2s.store_id = '0' AND ( LCASE(pd.name) LIKE '%large%' OR LCASE(pt.tag) LIKE 
'%large%' AND pt.language_id = '1') GROUP BY p.product_id ORDER BY p.sort_order ASC, LCASE
(pd.name) ASC LIMIT 0,15

您需要向查询添加选项值描述以及向 WHERE 子句添加参数：

SELECT p.product_id, (SELECT AVG(rating) AS total FROM review r1 WHERE r1.product_id = 
p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating FROM product p LEFT 
JOIN product_description pd ON (p.product_id = pd.product_id) LEFT JOIN 
product_to_store p2s ON (p.product_id = p2s.product_id) LEFT JOIN product_option_value 
pov ON (p.product_id = pov.product_id) LEFT JOIN option_value_description ovd ON 
(pov.option_value_id = ovd.option_value_id) LEFT JOIN product_tag pt ON (p.product_id 
= pt.product_id) WHERE pd.language_id = '1' AND p.status = '1' AND p.date_available <= 
NOW() AND p2s.store_id = '0' AND ( LCASE(pd.name) LIKE '%large%' OR LCASE(ovd.name) 
LIKE '%large%' OR LCASE(pt.tag) LIKE '%large%' AND pt.language_id = '1') GROUP BY  
p.product_id ORDER BY p.sort_order ASC, LCASE(pd.name) ASC LIMIT 0,15

为此，请编辑 catalog/model/catalog/product.php。查找第 37,38 行：

        if (!$product_data) {
        $sql = "SELECT p.product_id, (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 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)";

之后添加：

            //add option values to search query
        $sql.= " LEFT JOIN " . DB_PREFIX . "product_option_value pov ON (p.product_id = pov.product_id)";   
        $sql.= " LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (pov.option_value_id = ovd.option_value_id)";       
        // - - - - - - - - - - - - -

查找第 70 行：

$implode[] = "LCASE(pd.name) LIKE '%" . $this->db->escape(utf8_strtolower($word)) . "%'";

将其更改为：

$implode[] = "LCASE(pd.name) LIKE '%" . $this->db->escape(utf8_strtolower($word)) . "%'
OR LCASE(ovd.name) LIKE '%" . $this->db->escape(utf8_strtolower($word)) . "%'";

现在搜索将“看到”产品选项值名称，例如“大”、“红色”等。

要搜索价格要容易得多，只需在 WHERE 子句中包含参数以进行精确匹配：

"pd.price = '" . $this->db->escape(utf8_strtolower($word)) . "'

例如，对于达到某个值的价格值，请使用：

"pd.price <= '" . $this->db->escape(utf8_strtolower($word)) . "'

希望，你明白了。

现在，这只是一个快速而肮脏的示例，旨在让您继续前进。

我不建议将此作为最终解决方案。

您需要考虑添加新的 GET 变量来控制是否在搜索中包含选项和/或价格。此外，搜索价格范围而不是价格。添加变量以控制是否使用 AND 或 OR 运算符 - 即查找“red”和“XL”或两者中的任何一个。

祝你好运。

于 2012-12-19T06:55:32.930 回答