mysql - 如何在 Yii2 中创建和分组 OR LIKE 多列查询？

Question

如何使用查询生成器在 Yii2 中创建这样的查询？

SELECT * 
FROM blog 
WHERE status = 1 AND (
    author_username LIKE '%Steve%' 
    OR author_first_name LIKE '%Steve%' 
    OR author_last_name LIKE '%Steve%'
)

我正在尝试找到在搜索模型中使用它的正确方法。

Answer 1

有很多方法可以实现这个查询:

1. 使用PDO:

   $q='Stev';
   Yii::$app->db->createCommand('
       SELECT * 
       FROM blog 
       WHERE status = 1 AND (
           author_username LIKE :Q 
           OR author_first_name LIKE :Q 
           OR author_last_name LIKE :Q
       )
       ',['Q'=>"%$q%"])
       ->queryAll();
   

2. 使用yii\db\Query:

   $condition = [
       'OR',                               //Operand (C1 OR C2)
       [                                   //Condition1 (C1) which is complex
           'OR',                           //Operand (C1.1 OR C1.2)
           ['like','author_username',$q],  //C1.1
           ['like','author_first_name',$q] //C1.2
       ],
       ['like','author_last_name',$q]      //Condition2(C2)
   ];
   
   (new yii\db\Query())
       ->from('blog')
       ->andWhere('status = 1')
       ->andWhere($condition)
       ->all();
   

3. 使用ActiveRecord (ActiveQuery):

   Blog::find()
   ->active()
   ->andWhere($condition)
   ->all();
   

您可以使用QueryBuilder测试您的查询:

var_dump(Yii::$app->db->queryBuilder->build($your_query));