Symfony/Doctrine - 搜索

Question

有人可以帮助我进行基本搜索吗？ 我就是想不通。 只有当我输入 1 个单词时，我的搜索才有效。但是如果我输入 2,3,4,... 单词，它就不起作用了。

示例：POLYKARBONÁTOVÉ POUZDRO NA MACBOOK（Macbook 的聚碳酸酯封面）

如果我输入“pouzdro”来搜索输入，它会返回所有封面。 如果我输入“Polykarbonátové pouzdro”，它什么也不返回。 如果我输入“Polykarbonátové”，它什么也不返回。

这是我的代码：

    if ($keyword != null) {
        $keyword = strtolower(preg_replace('/\p{Mn}/u', '', \Normalizer::normalize($keyword, \Normalizer::FORM_KD)));
        $keywords = explode(' ', $keyword);
        $i = 0;
        foreach ($keywords as $key) {
            $i++;
            if ($i == 1) {
                $qb->where("p.title LIKE :keyword$i");
            } else {
                $qb->andWhere("p.title LIKE :keyword$i");
            }
            $qb->setParameter("keyword$i", "%" . $key . "%");
        }
    }

谢谢你:)

编辑： 从日志中查询（我用的是postgresql）：

[2016-10-26 16:47:11] 学说.DEBUG: SELECT p0_.id AS id_0, p0_.serial_number AS serial_number_1, p0_.title AS title_2, p0_.url AS url_3, p0_.note AS note_4, p0_.views AS views_5, p0_.price AS price_6, p0_.bought_price AS 买了_price_7, p0_.old_price AS old_price_8, p0_.is_active AS is_active_9, p0_.is_accessory AS is_accessory_10, p0_.is_special AS is_special_11, p0_.quantity AS quantity_12, p0_.created_at AS created_at_13, p0_.updated_at AS updated_at_14, p0_.details_id AS details_id_15, p0_.accessory_category_id AS Accessories_category_id_16 FROM products p0_ WHERE p0_.title LIKE ? ["%polykarbonatove%"] []

[2016-10-26 16:53:52] 学说.DEBUG: SELECT p0_.id AS id_0, p0_.serial_number AS serial_number_1, p0_.title AS title_2, p0_.url AS url_3, p0_.note AS note_4, p0_.views AS views_5, p0_.price AS price_6, p0_.bought_price AS 买了_price_7, p0_.old_price AS old_price_8, p0_.is_active AS is_active_9, p0_.is_accessory AS is_accessory_10, p0_.is_special AS is_special_11, p0_.quantity AS quantity_12, p0_.created_at AS created_at_13, p0_.updated_at AS updated_at_14, p0_.details_id AS details_id_15, p0_.accessory_category_id AS Accessories_category_id_16 FROM products p0_ WHERE p0_.title LIKE ?和 p0_.title 喜欢？ ["%polykarbonatove%","%pouzdro%"] []

Answer 1

所以，

1. 你真的不需要这个

   LOWER() // LIKE is not case sensitive
   

2. 尝试清除你的代码，你应该这样编码

   foreach ($keywords as $key) {
       $i++;
       if ($i == 1) {
           $qb->where("p.title LIKE :keyword$i");
       } else {
           $qb->andWhere("p.title LIKE :keyword$i");
       }
       $qb->setParameter("keyword$i", "%" . $key . "%");
   }
   

3. 你能打开日志文件，给我们教义尝试过的真实查询吗（var/cache/logs/dev.log）

Answer 2

您遇到的问题不在于搜索词的数量，而在于口音。

如果要执行不带重音的搜索，可以将排序规则更改为utf8_general_ci，它不区分重音。

要使用 Doctrine 更改排序规则，您必须实现自定义 DQL 函数，如 here 所述并在 this answer 中从 hattila 实现：

namespace MyCompany\MyBundle\DQL;

use Doctrine\ORM\Query\AST\Functions\FunctionNode;
use Doctrine\ORM\Query\Lexer;

class CollateFunction extends FunctionNode
{
    public $expressionToCollate = null;
    public $collation = null;

    public function parse(\Doctrine\ORM\Query\Parser $parser)
    {
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);
        $this->expressionToCollate = $parser->StringPrimary();

        $parser->match(Lexer::T_COMMA);

        $parser->match(Lexer::T_IDENTIFIER);
        $lexer = $parser->getLexer();
        $this->collation = $lexer->token['value'];

        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
    }

    public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
    {
        return sprintf( '%s COLLATE %s', $this->expressionToCollate->dispatch($sqlWalker), $this->collation );
    }
}

然后将其添加到 Symfony as explained here。