[moka同学笔记]Yii2.0给一张表中增加一个属性

1.model中建立关联

    public function getUser(){
        return$this->hasOne(User::className(),['id'=>'uid']) ;
    }

2.在视图中

    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'columns' => [
//            ['class' => 'yii\grid\SerialColumn'], 取消掉编号
            ['attribute'=>'id',
            'contentOptions'=>['width'=>'30'],
            ],
            'code',
            'name',
            'population',
            [
                'attribute'=>'username',
                'label'=>'作者',
                'value'=>'user.username',
            ],
            'create_at',
            // 'update_at',

            ['class' => 'yii\grid\ActionColumn'],
        ],
    ]); ?>

3.在model中增加属性

public function attributes()
    {
        return array_merge(parent::attributes(),['username']);// TODO: Change the autogenerated stub
    }

 

4.效果