情境要求：
要在订单（Order）视图的gridview中显示出客户（Customer）姓名，并使其具有与其它字段相同的排序和搜索功能。
数据库结构
订单表order含有字段customer_id 与 客户表customer的id字段关联
首先确保在Order Model中包含以下代码：
public function getCustomer()
{
return $this->hasOne(Customer::className(), ['id' => 'customer_id']);
}
用gii会自动生成此代码；
第一步：
在OrderSearch添加一个$customer_name变量
class OrderSearch extends Order
{
public $customer_name; //<=====就是加在这里
}
第二步：
修改OrderSearch中的search函数
public function search($params)
{
$query = Order::find();
$query->joinWith(['customer']);<=====加入这句
$dataProvider = new ActiveDataProvider([
'query' => $query,
]);
$dataProvider->setSort([
'attributes' => [
/* 其它字段不要动 */
/* 下面这段是加入的 */
/*=============*/
'customer_name' => [
'asc' => ['customer.customer_name' => SORT_ASC],
'desc' => ['customer.customer_name' => SORT_DESC],
'label' => 'Customer Name'
],
/*=============*/
]
]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere([
'id' => $this->id,
'user_id' => $this->user_id,
'customer_id' => $this->customer_id,
'order_time' => $this->order_time,
'pay_time' => $this->pay_time,
]);
$query->andFilterWhere(['like', 'status', $this->status]);
$query->andFilterWhere(['like', 'customer.customer_name', $this->customer_name]) ;//<=====加入这句
return $dataProvider;
}
第三步：
修改order/index视图的gridview
<?= GridView::widget([
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
'id',
'customer_id',
'status',
['label'=>'客户', 'attribute' => 'customer_name', 'value' => 'customer.customer_name' ],//<=====加入这句
['class' => 'yii\grid\ActionColumn'],
],
]); ?>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持Devmax。