Model层简单应用2

<?phpnamespace frontend\models;use yii\base\Model;use common\models\Admin;use yii\db\Query;class AdminModel extends  \yii\db\ActiveRecord{    public  static function tablename(){        return 'admin';    }    public  function  rules(){        return [            ['a_admin,a_pwd','required'],            [['a_pwd'],'string','min'=>2,'tooShort'=>'密码最少两个字符','max'=>16,'tooLong'=>'密码最长是十六个字符']        ];    }    public  function  fin($ar){        return $data= AdminModel::find()->where(['a_admin'=>$ar['a_admin']])->asArray()->all();    }}?>