public ActionResult TrainAllGroups(string id, string language, string db) { if (!IsSitecoreUser()) { return(LoginPage()); } Dictionary <Guid, string> groupIdSet = PersonGroupService.GetAllGroupItems(db).ToDictionary(a => a.ID.Guid, b => b[SearchSettings.FaceEntityIdFieldId]); if (!groupIdSet.Any()) { return(View("TrainAllGroups")); } groupIdSet.ForEach(gid => FaceService.TrainPersonGroup(gid.Value)); return(View("TrainAllGroups", model: JsonConvert.SerializeObject(groupIdSet))); }