/**
* @inheritdoc
*/
public function __construct($expression, $params = [], $config = [])
{
parent::__construct($expression, $params, $config);
if ($this->query instanceof ActiveQuery) {
$this->query->on(ActiveQuery::EVENT_ALIAS, function (Event $event) use($expression) {
/* @var $query ActiveQuery */
$query = $event->sender;
$this->expression = str_replace('{a}', $query->getAlias(), $expression);
});
$this->expression = str_replace('{a}', $this->query->getAlias(), $expression);
}
}
