Backend\Modules\Faq\Engine\Model::insertCategory PHP Method

    public static function insertCategory(array $item, $meta = null)
    {
        $db = BackendModel::get('database');
        // insert the meta if possible
        if ($meta !== null) {
            $item['meta_id'] = $db->insert('meta', $meta);
        }
        // insert extra
        $item['extra_id'] = BackendModel::insertExtra(ModuleExtraType::widget(), 'Faq', 'CategoryList');
        $item['id'] = $db->insert('faq_categories', $item);
        // update extra (item id is now known)
        BackendModel::updateExtra($item['extra_id'], 'data', array('id' => $item['id'], 'extra_label' => \SpoonFilter::ucfirst(BL::lbl('Category', 'Faq')) . ': ' . $item['title'], 'language' => $item['language'], 'edit_url' => BackendModel::createURLForAction('EditCategory', 'Faq', $item['language']) . '&id=' . $item['id']));
        return $item['id'];
    }

 /**
  * Validate the form
  */
 private function validateForm()
 {
     if ($this->frm->isSubmitted()) {
         $this->meta->setURLCallback('Backend\\Modules\\Faq\\Engine\\Model', 'getURLForCategory');
         $this->frm->cleanupFields();
         // validate fields
         $this->frm->getField('title')->isFilled(BL::err('TitleIsRequired'));
         $this->meta->validate();
         if ($this->frm->isCorrect()) {
             // build item
             $item['title'] = $this->frm->getField('title')->getValue();
             $item['language'] = BL::getWorkingLanguage();
             $item['meta_id'] = $this->meta->save();
             $item['sequence'] = BackendFaqModel::getMaximumCategorySequence() + 1;
             // save the data
             $item['id'] = BackendFaqModel::insertCategory($item);
             BackendModel::triggerEvent($this->getModule(), 'after_add_category', array('item' => $item));
             // everything is saved, so redirect to the overview
             $this->redirect(BackendModel::createURLForAction('Categories') . '&report=added-category&var=' . urlencode($item['title']) . '&highlight=row-' . $item['id']);
         }
     }
 }