Admin_QuantityValueController::unitProxyAction PHP Метод

    public function unitProxyAction()
    {
        if ($this->getParam("data")) {
            if ($this->getParam("xaction") == "destroy") {
                $data = Zend_Json::decode($this->getParam("data"));
                $id = $data["id"];
                $unit = \Pimcore\Model\Object\QuantityValue\Unit::getById($id);
                if (!empty($unit)) {
                    $unit->delete();
                    $this->_helper->json(["data" => [], "success" => true]);
                } else {
                    throw new \Exception("Unit with id " . $id . " not found.");
                }
            } elseif ($this->getParam("xaction") == "update") {
                $data = Zend_Json::decode($this->getParam("data"));
                $unit = Pimcore\Model\Object\QuantityValue\Unit::getById($data['id']);
                if (!empty($unit)) {
                    $unit->setValues($data);
                    $unit->save();
                    $this->_helper->json(["data" => get_object_vars($unit), "success" => true]);
                } else {
                    throw new \Exception("Unit with id " . $data['id'] . " not found.");
                }
            } elseif ($this->getParam("xaction") == "create") {
                $data = Zend_Json::decode($this->getParam("data"));
                unset($data['id']);
                $unit = new Pimcore\Model\Object\QuantityValue\Unit();
                $unit->setValues($data);
                $unit->save();
                $this->_helper->json(["data" => get_object_vars($unit), "success" => true]);
            }
        } else {
            $list = new Pimcore\Model\Object\QuantityValue\Unit\Listing();
            $orderKey = "abbreviation";
            $order = "asc";
            $sortingSettings = \Pimcore\Admin\Helper\QueryParams::extractSortingSettings($this->getAllParams());
            if ($sortingSettings['orderKey']) {
                $orderKey = $sortingSettings['orderKey'];
            }
            if ($sortingSettings['order']) {
                $order = $sortingSettings['order'];
            }
            $list->setOrder($order);
            $list->setOrderKey($orderKey);
            $list->setLimit($this->getParam("limit"));
            $list->setOffset($this->getParam("start"));
            $condition = "1 = 1";
            if ($this->getParam("filter")) {
                $filterString = $this->getParam("filter");
                $filters = json_decode($filterString);
                $db = \Pimcore\Db::get();
                foreach ($filters as $f) {
                    if ($f->type == "string") {
                        $condition .= " AND " . $db->getQuoteIdentifierSymbol() . $f->field . $db->getQuoteIdentifierSymbol() . " LIKE " . $db->quote("%" . $f->value . "%");
                    } elseif ($f->type == "numeric") {
                        $operator = $this->getOperator($f->comparison);
                        $condition .= " AND " . $db->getQuoteIdentifierSymbol() . $f->field . $db->getQuoteIdentifierSymbol() . " " . $operator . " " . $db->quote($f->value);
                    }
                }
                $list->setCondition($condition);
            }
            $list->load();
            $units = [];
            foreach ($list->getUnits() as $u) {
                $units[] = get_object_vars($u);
            }
            $this->_helper->json(["data" => $units, "success" => true, "total" => $list->getTotalCount()]);
        }
    }