Query::__call

public function __call($method, $arguments)
{
	// where and having proxies
	if (substr($method, 0, 6) === 'having')
	{
		$method = str_replace('having', 'where', $method);
	}

	if (substr($method, 0, 5) === 'where')
	{
		if (method_exists($this->filterHandler, $method))
		{
			call_user_func_array(
				[$this->filterHandler, $method],
				$arguments
			);

			return $this;
		}
	}

	if (substr($method, 0, 4) === 'with')
	{
		$dataClass = $this->entity->getDataClass();

		if (method_exists($dataClass, $method))
		{
			// set query as first element
			array_unshift($arguments, $this);

			call_user_func_array(
				[$dataClass, $method],
				$arguments
			);

			return $this;
		}
	}

	throw new Main\SystemException("Unknown method `{$method}`");
}