This extension provides a generic data collection as well as a collection for the ActiveRecord DB layer of Yii 2.

Development is currently in experimental state. It is not ready for production use and may change significantly.

For license information check the LICENSE-file.

Documentation is at docs/guide/README.md.

The preferred way to install this extension is through composer.

Either run

php composer.phar require --prefer-dist yiisoft/yii2-collection

or add

"yiisoft/yii2-collection": "~1.0.0"

to the require section of your composer.json.

To use this extension, you have to attach the yii\collection\CollectionBehavior to the ActiveQuery instance of your ActiveRecord classes by overriding the find() method:

/**
 * {@inheritdoc}
 * @return \yii\db\ActiveQuery|\yii\collection\CollectionBehavior
 */
public static function find()
{
    $query = parent::find();
    $query->attachBehavior('collection', \yii\collection\CollectionBehavior::class);
    return $query;
}