Relational data fields display in Yii2 Details views - php

Question

I have a Table KHDN references table Loaihinh via foreign key loaihinh_ten
Table Loaihinh:
ten int identity primary key; //
loai varchar(100);
Table KHDN:
...fields
loaihinh_ten: foreign key references Loaihinh(ten)
What should i do if i want to show Loaihinh. loai instead of the foreign key loaihinh_ten in khdn/views.php Yii2:
<?php
use yii\widgets\DetailView;
/* #var $this yii\web\View */
/* #var $model common\models\Khdn */
?>
<div class="khdn-view">
<?= DetailView::widget([
'model' => $model,
'attributes' => [
'id',
'ten:ntext',
'chudautu:ntext',
'ngaybatdau:ntext',
'ngayhoanthanh:ntext',
'giatri:ntext',
'trangthai_ten',
'diachi:ntext',
'ghichu:ntext',
'loaihinh_ten',
],
]) ?>
</div>
thanks you so much!!

Answer 1

Use
$model->relationName->fieldName
Example:
/**
* #return \yii\db\ActiveQuery
*/
public function getLoaihinh()
{
return $this->hasOne(KHDN::className(), ['id' =>
'loaihinh_ten']);
}
Then use the following relation in View:
$model->loaihinh->loai;

Answer 2

There are many method of doing this things. you can use any of the following methods for this problem.
you need not to use joinWith method for this you can get that relation data any where in your program just using
$model->relation_name_decleared_in_model
below is the sample code that is use a
<?= GridView::widget([
'dataProvider' => $dataProvider,
//'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
[
'attribute' => 'type',
'value' => function ($model) {
return \app\models\BlockType::getConstantMessage($model->type);
},
],
[
'class' => 'kartik\grid\EditableColumn',
'header' => 'POSITION',
'attribute' => 'position',
],
[
'attribute' => 'access',
'value' => function ($model) {
return \app\components\Helper::ACCESS[$model->access];
},
],
'some_attribute',
[
'attribute' => 'other_relation',
'value' => 'model.relation.column'
],
[
'attribute' => 'Page',
'value' => function ($model) {
return $model->page->pageContent->name;
},
],
['class' => 'yii\grid\ActionColumn'],
],
]); ?>