Admin_DocumentController::docTypesAction PHP Method

    public function docTypesAction()
    {
        if ($this->getParam("data")) {
            $this->checkPermission("document_types");
            if ($this->getParam("xaction") == "destroy") {
                $data = \Zend_Json::decode($this->getParam("data"));
                if (\Pimcore\Tool\Admin::isExtJS6()) {
                    $id = $data["id"];
                } else {
                    $id = $data;
                }
                $type = Document\DocType::getById($id);
                $type->delete();
                $this->_helper->json(["success" => true, "data" => []]);
            } elseif ($this->getParam("xaction") == "update") {
                $data = \Zend_Json::decode($this->getParam("data"));
                // save type
                $type = Document\DocType::getById($data["id"]);
                $type->setValues($data);
                $type->save();
                $this->_helper->json(["data" => $type, "success" => true]);
            } elseif ($this->getParam("xaction") == "create") {
                $data = \Zend_Json::decode($this->getParam("data"));
                unset($data["id"]);
                // save type
                $type = Document\DocType::create();
                $type->setValues($data);
                $type->save();
                $this->_helper->json(["data" => $type, "success" => true]);
            }
        } else {
            // get list of types
            $list = new Document\DocType\Listing();
            $list->load();
            $docTypes = [];
            foreach ($list->getDocTypes() as $type) {
                if ($this->getUser()->isAllowed($type->getId(), "docType")) {
                    $docTypes[] = $type;
                }
            }
            $this->_helper->json(["data" => $docTypes, "success" => true, "total" => count($docTypes)]);
        }
        $this->_helper->json(false);
    }