/**
* Mass delete function from index page
* @param Request $request
*
* @return mixed
*/
public function massDelete(Request $request)
{
if ($request->get('toDelete') != 'mass') {
$toDelete = json_decode($request->get('toDelete'));
Slider::destroy($toDelete);
} else {
Slider::whereNotNull('id')->delete();
}
return redirect()->route('admin.slider.index');
}