/**
  * This method controls what happens when you move to /inventory/delete(/XX) in your app.
  * Deletes a product. In a real application a deletion via GET/URL is not recommended, but for demo purposes it's
  * totally okay.
  * @param int $product_id id of the note
  */
 public function delete($product_id)
 {
     InventoryModel::deleteProduct($product_id);
     Redirect::to('inventory');
 }