CONCAT_WS无法处理select语句

Question

我试图连接＆＃34; firstname＆＃34;和＆＃34;姓氏＆＃34;喜欢这个＆＃34;名字姓氏＆＃34; 在进行搜索查询时。

这是我的代码：

$query = Contact::find()
    ->select([
        "CONCAT_WS(' ', firstname, lastname) AS name"
    ])
    ->where('(firstname like :fname) OR (lastname like :lname) OR (email = :email)', [
        ':fname' => $searchkey,
        ':lname' => $searchkey,
        ':email' => $searchkey,
    ])->all();

但结果是空的，如下：

Array
(
   [0] => common\models\contact\Contact Object
   (
        [_attributes:yii\db\BaseActiveRecord:private] => Array
            (
            )

        [_oldAttributes:yii\db\BaseActiveRecord:private] => Array
            (
            )

        [_related:yii\db\BaseActiveRecord:private] => Array
            (
            )

        [_errors:yii\base\Model:private] => 
        [_validators:yii\base\Model:private] => 
        [_scenario:yii\base\Model:private] => default
        [_events:yii\base\Component:private] => Array
            (
            )

        [_behaviors:yii\base\Component:private] => Array
            (
            )

   )

)

我希望我能有类似的东西

[name] => "firstname lastname"

输出但没有运气。需要帮助谢谢。

Answer 1

您应该在Contcat模型中添加公共var $ name ，并在规则中添加属性为安全，以便使用别名来重新计算值

class Contact extends \yii\db\ActiveRecord
{

  public $name;
  .... 

}