Yii2 Gridview Dataprovider create with relationship

 

In Yii2, if you want to create a GridView with a DataProvider that includes related models and additional select columns, you can do the following:

1. Create a Query with Related Models and Additional Select Columns:

$query = YourModel::find()

    ->select(['your_table.*', 'related_table.column AS alias'])

    ->joinWith('relatedRelation')

    ->where(['your_condition'])

    ->asArray();

Create a DataProvider using the Query:

$dataProvider = new \yii\data\ActiveDataProvider([

    'query' => $query,

    'pagination' => [

        'pageSize' => 20, // Set your desired page size

    ],

]);

Configure GridView to use the DataProvider:

<?= \yii\grid\GridView::widget([

    'dataProvider' => $dataProvider,

    'columns' => [

        'attribute1',

        'attribute2',

        // ... other attributes from your model ...

        'alias', // Access the added select column

        [

            'class' => 'yii\grid\ActionColumn',

            // ... configure action buttons ...

        ],

    ],

]); ?>

Make sure to replace 'your_table', 'related_table', 'alias', 'relatedRelation', and 'attribute1', 'attribute2' with actual table and attribute names from your application.

Keep in mind that this assumes you have properly set up your models, relations, and database tables in Yii2.

Remember to adjust the column names, relations, and conditions to match your specific application. This code serves as a template and may need to be customized based on your specific requirements.