Backend\Modules\Profiles\Actions\EditGroup::execute PHP Метод

    public function execute()
    {
        // get parameters
        $this->id = $this->getParameter('id', 'int');
        // does the item exists
        if ($this->id !== null && BackendProfilesModel::existsGroup($this->id)) {
            parent::execute();
            $this->getData();
            $this->loadForm();
            $this->validateForm();
            $this->parse();
            $this->display();
        } else {
            $this->redirect(BackendModel::createURLForAction('Groups') . '&error=non-existing');
        }
    }