public InvitationService(HappeningsContext hc, ILoginService loginServ, IApiEntityService <Reminder, ReminderDto> reminderServ) : base(hc, loginServ)
 {
     reminderService = reminderServ;
 }
 public HappeningService(HappeningsContext hc, ILoginService loginServ, IInvitationEntityService invitationService, IApiEntityService <User, UserDto> userServ) : base(hc, loginServ)
 {
     joinService = invitationService;
     userService = userServ;
 }