Yii2 Dynamically render GridView

Question

I have a table/model "seminar" (Trainings) and a table/model "category". They are connected through the field "seminar.category_id" so e.g. that I can use seminar->category->name. That all works.

Now I want to render a GridView-widget for each category, containing the corresponding seminars.

1) Should I use multiple GridViews or is there a better way (I need no filtering, etc.)

2) If answer of 1) is yes GridView, how should I implement it?

put the code in a widget and call through foreach
put the code in a view and call through foreach
put the code in a view and call through ListView
...

Sorry for the short question, if necessary I can post more details, but it's more a conceptual question.

UPDATE - solution:

The answer of Hesam pointed me in the right direction. Since I have to modified the answer I will post my solution here.

Note: I used ActiveDataProvider

SeminarController/actionIndex:

$categories = Category::find()->where(['Status'=>Category::STATUS_ACTIVE])->All();
$dataProviders = [];

foreach ($categories as $category) {

        $dataProviders[] = new ActiveDataProvider([
            'query' => $category->getSeminars(),
        ]);
}

return $this->render('index', compact('dataProviders'));

Struggled with getting the views to show - dont't work with:

<?php foreach(...){ $this->render()}... ?>

view/seminar/index.php:

<?php
foreach ($dataProviders as $dataProvider) {
?>
<?=
    $this->render('_categoryRow', [
        'dataProvider' => $dataProvider,
    ]);
?>
<?php } ?>

/view/seminar/_categoryRow.php:

<?= GridView::widget([
    'dataProvider' => $dataProvider,
...

Additional tips:

Getting the current category name from $dataProvider ("name" is a column of "category")

$dataProvider->query->primaryModel->name
Getting the current count of seminars from $dataProvider

$dataProvider->getCount()

Amoo Hesam Amoo Hesam · Accepted Answer · 2015-12-03T22:18:20

One approach is to use multiple data providers with multiple widgets. Consider we have this code in our action:

    $categories = Category::find()->All();
    $dataProviders = [];

    foreach ($categories as $category) {
        $dataProviders[] = new ArrayDataProvider([
            'allModels' => $category->seminars,
            'sort' =>['attributes' => ['id'],], // Here you can choose your custom attributes for sorting
            'pagination' => ['pageSize' => 100]
        ]);
    }

    return $this->render('test', compact('dataProviders'));

By looping through $dataProviders array in view, we can show all categories with their child seminars:

    foreach ($dataProviders as $dataProvider) {

    echo GridView::widget([
        'dataProvider' => $dataProvider,

        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],

            'foo',
            'bar',
            'created_at:relativeTime',
            'updated_at:relativeTime',
        ],

    ]) ;

}

Hope it can help.

Yii2 Dynamically render GridView

1 Answers