public function setCampus($id) { $ucampus = UserCampus::whereUserId(Auth::user()->id)->first(); if ($id == 1) { return 'false'; } //return json_encode($ucampus); if ($ucampus) { $now = Carbon::parse($ucampus->updated_at); if ($now->diffInDays() < 30) { return 'false'; } $ucampus->campus_id = $id; $ucampus->save(); return 'true'; } else { $ucampus = new UserCampus(); $ucampus->user_id = Auth::user()->id; $ucampus->campus_id = $id; $ucampus->save(); return 'true'; } return 'false'; }