Backend\Modules\Analytics\Form\SettingsStepWebPropertyType::handle PHP Метод

    public function handle()
    {
        $this->form->cleanupFields();
        if (!$this->form->isSubmitted() || !$this->isValid()) {
            return false;
        }
        $this->settings->set('Analytics', 'web_property_id', $this->form->getField('web_property_id')->getValue());
        return true;
    }