public function index(Request $request)
{
$asc = preg_match("/^[\\-]{1}/", $request->input('order', '-created_at')) ? 'DESC' : 'ASC';
$order = preg_replace("/^[\\-]{1}/", "", $request->input('order', '-created_at'));
$stmt = Role::orderBy($order, $asc);
if ($request->input('filter')) {
$q = $request->input('filter');
$stmt->where('name', 'like', '%' . $q . '%');
}
$roles = $stmt->paginate($request->input('limit'));
return response()->json($roles);
}
