public function save_shelf()
{
$id = Input::get('id');
$store_id = Input::get('store_id');
$department_id = Input::get('department_id');
$shelf = Shelf::find($id);
if (!$shelf) {
$shelf = new Shelf();
}
$shelf->name = Input::get('name');
$shelf->store_id = $store_id;
$shelf->department_id = $department_id;
$shelf->save();
$message = "Successfully updated the shelf";
$type = "success";
return Redirect::to('/admin/store/' . $store_id . '/department/' . $department_id . '/shelves')->with('type', $type)->with('message', $message);
}