Yii2 Grid view syntax to access data from related model - php

Question

for example I can retrieve the data in the view with this command:
<?=$model->instructor->manager->location['location_title']?>
I have a relation defined in Instructor model like:
/**
* #return mixed
*/
public function getUser()
{
return $this->hasOne(User::className(), ['id' => 'user_id']);
}
/**
* #return mixed
*/
public function getManager()
{
return $this->hasOne(Manager::className(), ['user_id' => 'manager_id']);
}
and in Manager Model relations are defined like this:
/**
* #return mixed
*/
public function getLocation()
{
return $this->hasOne(Location::className(), ['id' => 'location_id']);
}
/**
* #return mixed
*/
public function getUser()
{
return $this->hasOne(User::className(), ['id' => 'user_id']);
}
Now How I can retrieve the same data in grid-view as also add filter for the same.
Thanks.
update: Gridview Code
echo GridView::widget(
[
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
//'id',
'first_name',
'last_name',
// 'username',
// 'auth_key',
// 'password_hash',
// 'password_reset_token',
'email:email',
// 'phone',
//'user_role',
['attribute' => 'created_at', 'label' => 'Last Login', 'value' => function ($data) {
return $data->getLast($data);
},
'contentOptions' => ['style' => 'width:100px']
],
['attribute' => 'created_at', 'label' => 'Create Date', 'contentOptions' => ['style' => 'width:100px'], 'value' => function ($data) {return date('M d, Y', $data->created_at);}
],
// 'updated_at',
['attribute' => 'status', 'value' => function ($data) {
return $data->getStatus($data);
},
'filter' => ['10' => 'Active', '0' => 'Deactive'],
'contentOptions' => function ($data) {
$clr = $data->status == 10 ? 'green' : 'red';
return ['style' => 'width:80px;font-weight:bold;color:' . $clr];
}
]
]
]
);
Update-1
public function actionInstructor()
{
$cond = "user_role='instructor' ";
$searchModel = new UserSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams, $cond);
return $this->render(
'instructor', [
'searchModel' => $searchModel,
'dataProvider' => $dataProvider
]
);
}
update-2
public function getInstructor()
{
return $this->hasOne(Instructor::className(), ['user_id' => 'id']);
}

Answer 1

You can specify relations either as a string of relation names concatenated with . like below. Make sure you have the relations defined in the respective models the below is for the $dataProvider from the UserSearch model and your User Model should have the relation getInstructor() defined
[
'intructor.manager.location.location_title'
]
or
[
'label' => 'Manager Location',
'value' => function($model){
return $model->instructor->manager->location->location_title;
}
]
if I have the $dataProvider for the UserSearch model below should be the gridview code.
<?=GridView::widget([
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
//'id',
'first_name',
'last_name',
[
'label'=>'Manager Location'
'attribute'=>'manager_id'.
'value'=>function($model){
return $model->instructor->manager->location->location_title;
}
]
// 'username',
// 'auth_key',
// 'password_hash',
// 'password_reset_token',
'email:email',
// 'phone',
//'user_role',
['attribute' => 'created_at', 'label' => 'Last Login', 'value' => function ($data) {
return $data->getLast($data);
},
'contentOptions' => ['style' => 'width:100px'],
],
['attribute' => 'created_at', 'label' => 'Create Date', 'contentOptions' => ['style' => 'width:100px'], 'value' => function ($data) {return date('M d, Y', $data->created_at);}],
// 'updated_at',
['attribute' => 'status', 'value' => function ($data) {
return $data->getStatus($data);
},
'filter' => ['10' => 'Active', '0' => 'Deactive'],
'contentOptions' => function ($data) {
$clr = $data->status == 10 ? 'green' : 'red';
return ['style' => 'width:80px;font-weight:bold;color:' . $clr];
},
],