Yii2 - how to refer to main model in a gii(ant) generated view, under a relations tab?

Question

I have a standard giiant generated view where the main model $model is present. First part of the View is a Detailview widget:

<?=
DetailView::widget([
    'model' => $model,

So far clear. Then comes relations tabs (or blocks):

<?php $this->beginBlock('relatedmodels');
echo GridView::widget(['dataProvider' => new \yii\data\ActiveDataProvider(['query' => $model->getRelatedmodels()]),
...
'columns' => [
    [
        'attribute' => 'calculated',
        'value' => function ($relatedmodel) {return $relatedmodel->getCalculated($model->id);},
    ],

This gives of course an error

Undefined variable: model

Controller is also standard giiant generated:

public function actionView($id) {
    \Yii::$app->session['__crudReturnUrl'] = Url::previous();
    Url::remember();
    Tabs::rememberActiveState();

    return $this->render('view', [
        'model' => $this->findModel($id),
    ]);
}

How can I pass the main model id to the function getCalculated() ? Or how to initialise $model into the anonymous function (is it possible at all) ? Can you please point me to the right direction ?

`'value' => function ($relatedmodel) use ($model) {return $relatedmodel->getCalculated($model->id);},` — Insane Skull, Sep 03 '20 at 07:11
Wow, thank you, it's working flawlessly. Is there some kind of documentation about this? — user2511599, Sep 03 '20 at 07:14

score 1 · Accepted Answer · answered Sep 03 '20 at 07:17

You need to use Anonymous function - use() and what is a closure and why does it use the “use” identifier?

$this->beginBlock('relatedmodels');
<?= GridView::widget(['dataProvider' => new \yii\data\ActiveDataProvider(['query' => $model->getRelatedmodels()]),
...
'columns' => [
    [
        'attribute' => 'calculated',
        'value' => function ($relatedmodel) use ($model) {return $relatedmodel->getCalculated($model->id);},
    ],

Yii2 - how to refer to main model in a gii(ant) generated view, under a relations tab?

1 Answers1