public function renderProduct()
 {
     if (AppUserRolesConfig::hasAddEditDeletePriviligies()) {
         FormViewHelper::init();
         FormViewHelper::setAttribute('class', 'productForm');
         FormViewHelper::setMethod("post");
         FormViewHelper::setAction(\EShop\Config\RouteConfig::getBasePath() . 'products/edit');
         FormViewHelper::initTextField()->setName('productName')->setValue($this->productOldInformation->getProductName())->setAttribute('class', 'form-group')->create();
         FormViewHelper::initHiddenField()->setName('productId')->setValue($this->productOldInformation->getProductId())->setAttribute('class', 'form-group')->create();
         FormViewHelper::initTextField()->setName('quantity')->setValue($this->productOldInformation->getQuantity())->create();
         $select = FormViewHelper::initSelect();
         $select->setAttribute('class', 'form-group');
         $select->setName('categoryId');
         foreach ($this->categories as $category) {
             if ($category->getId() == $this->productOldInformation->getCategoryId()) {
                 $select->addOption($category->getId(), $category->getName(), true);
             } else {
                 $select->addOption($category->getId(), $category->getName());
             }
         }
         $select->create();
         FormViewHelper::initSubmitButton()->setValue('Edit')->setAttribute('class', 'btn-primary btn-lg')->create()->render();
     }
 }
 public function update(EditProductBindingModel $model)
 {
     $productId = $model->getProductId();
     $isUpdated = $this->db->updateEntityById(self::PRODUCTS_TABLENAME, array('name' => $model->getProductName(), 'category_id' => $model->getCategoryId(), 'quantity' => $model->getQuantity()), $productId);
     return $isUpdated;
 }