ArticleIndex.php

<?php
namespace yiiunit\data\ar\sphinx;

class ArticleIndex extends ActiveRecord
{
	public $custom_column;

	public static function indexName()
	{
		return 'yii2_test_article_index';
	}

	public function getSource()
	{
		return $this->hasOne(ArticleDb::className(), ['id' => 'id']);
	}

	public function getTags()
	{
		return $this->hasMany(TagDb::className(), ['id' => 'tag']);
	}

	public function getSnippetSource()
	{
		return $this->source->content;
	}

	public static function createQuery($config = [])
	{
		$config['modelClass'] = get_called_class();
		return new ArticleIndexQuery($config);
	}
}