/**
  * This method controls what happens when you move to /note/edit(/XX) in your app.
  * Shows the current content of the note and an editing form.
  * @param $note_id int id of the note
  */
 public function edit($product_id)
 {
     $this->View->render('inventory/edit', array('product' => InventoryModel::getProduct($product_id)));
 }