Admin_ElementController::replaceAssignmentsAction PHP Метод

    public function replaceAssignmentsAction()
    {
        $success = false;
        $message = "";
        $element = Element\Service::getElementById($this->getParam("type"), $this->getParam("id"));
        $sourceEl = Element\Service::getElementById($this->getParam("sourceType"), $this->getParam("sourceId"));
        $targetEl = Element\Service::getElementById($this->getParam("targetType"), $this->getParam("targetId"));
        if ($element && $sourceEl && $targetEl && $this->getParam("sourceType") == $this->getParam("targetType") && $sourceEl->getType() == $targetEl->getType()) {
            $rewriteConfig = [$this->getParam("sourceType") => [$sourceEl->getId() => $targetEl->getId()]];
            if ($element instanceof Document) {
                $element = Document\Service::rewriteIds($element, $rewriteConfig);
            } elseif ($element instanceof Object\AbstractObject) {
                $element = Object\Service::rewriteIds($element, $rewriteConfig);
            } elseif ($element instanceof Asset) {
                $element = Asset\Service::rewriteIds($element, $rewriteConfig);
            }
            $element->setUserModification($this->getUser()->getId());
            $element->save();
            $success = true;
        } else {
            $message = "source-type and target-type do not match";
        }
        $this->_helper->json(["success" => $success, "message" => $message]);
    }