protected function applyOrder()
{
$result = parent::applyOrder();
if (!$result) {
return false;
}
if ($this->orderDirection === self::ORDER_DIRECTION_ASC) {
$this->parents = $this->orderMethods[$this->orderMethod]->invokeAscending($this->parents);
} else {
$this->parents = $this->orderMethods[$this->orderMethod]->invokeDescending($this->parents);
}
return true;
}