Home\Controller\ItemController::add PHP Метод

    public function add()
    {
        $login_user = $this->checkLogin();
        $item_id = I("item_id/d");
        if (!IS_POST) {
            $item = D("Item")->where("item_id = '{$item_id}' ")->find();
            $this->assign("item", $item);
            $this->display();
        } else {
            $item_name = I("item_name");
            $item_domain = I("item_domain") ? I("item_domain") : '';
            $copy_item_id = I("copy_item_id");
            $password = I("password");
            $item_description = I("item_description");
            $item_type = I("item_type");
            if ($item_domain) {
                $item = D("Item")->where("item_domain = '{$item_domain}' and item_id !='{$item_id}' ")->find();
                if ($item) {
                    //个性域名已经存在
                    $this->message(L('domain_already_exists'));
                    return false;
                }
                if (!ctype_alnum($item_domain) || is_numeric($item_domain)) {
                    //echo '个性域名只能是字母或数字的组合';exit;
                    $this->message(L('item_domain_illegal'));
                    return false;
                }
            }
            //如果是复制项目
            if ($copy_item_id > 0) {
                if (!$this->checkItemPermn($login_user['uid'], $copy_item_id)) {
                    $this->message(L('no_permissions'));
                    return;
                }
                $ret = D("Item")->copy($copy_item_id, $login_user['uid'], $item_name, $item_description, $password, $item_domain);
                if ($ret) {
                    $this->message(L('operation_succeeded'), U('Home/Item/index'));
                } else {
                    $this->message(L('operation_failed'), U('Home/Item/index'));
                }
                return;
            }
            if ($item_id > 0) {
                $data = array("item_name" => $item_name, "item_domain" => $item_domain, "password" => $password, "item_description" => $item_description);
                $ret = D("Item")->where("item_id = '{$item_id}' ")->save($data);
            } else {
                $insert = array("uid" => $login_user['uid'], "username" => $login_user['username'], "item_name" => $item_name, "password" => $password, "item_description" => $item_description, "item_domain" => $item_domain, "item_type" => $item_type, "addtime" => time());
                $item_id = D("Item")->add($insert);
            }
            if ($item_id) {
                //如果是单页应用，则新建一个默认页
                if ($item_type == 2) {
                    $insert = array('author_uid' => $login_user['uid'], 'author_username' => $login_user['username'], "page_title" => $item_name, "item_id" => $item_id, "cat_id" => 0, "page_content" => '欢迎使用showdoc。点击右上方的编辑按钮进行编辑吧！', "addtime" => time());
                    D("Page")->add($insert);
                }
                $this->message(L('operation_succeeded'), U('Home/Item/index'));
            } else {
                $this->message(L('operation_failed'), U('Home/Item/index'));
            }
        }
    }