public static string Delete(SiteSettings ss, int groupId) { var groupModel = new GroupModel(ss, groupId); var invalid = GroupValidators.OnDeleting(ss, groupModel); switch (invalid) { case Error.Types.None: break; default: return(invalid.MessageJson()); } var error = groupModel.Delete(ss); if (error.Has()) { return(error.MessageJson()); } else { Sessions.Set("Message", Messages.Deleted(groupModel.Title.Value).Html); var res = new GroupsResponseCollection(groupModel); res .SetMemory("formChanged", false) .Href(Locations.Index("Groups")); return(res.ToJson()); } }