Craft\FormBuilder2_FormController::actionEditForm PHP Method

    public function actionEditForm(array $variables = array())
    {
        $variables['brandNewForm'] = false;
        $variables['navigation'] = $this->navigation();
        if (!empty($variables['formId'])) {
            if (empty($variables['form'])) {
                $variables['form'] = craft()->formBuilder2_form->getFormById($variables['formId']);
                if (!$variables['form']) {
                    throw new HttpException(404);
                }
            }
            $variables['title'] = $variables['form']->name;
        } else {
            if (empty($variables['form'])) {
                $variables['form'] = new FormBuilder2_FormModel();
                $variables['brandNewForm'] = true;
            }
            $variables['title'] = Craft::t('Create a new form');
        }
        $this->renderTemplate('formbuilder2/forms/_edit', $variables);
    }