public NotificationCenterSender(IMessengerProvider messengerProvider, INotificationSubscriber subscriber, IDbContextFetcher dbContextFetcher, EmailSender emailSender)
 {
     this._messengerProvider = messengerProvider;
     this._subscriber        = subscriber;
     this._context           = dbContextFetcher.FetchDbContext <INotificationCenterDbContext>();
     this._emailSender       = emailSender;
 }
 public NotificationCenterSubscriber(IDbContextFetcher dbContextFetcher)
 {
     this._context = dbContextFetcher.FetchDbContext <INotificationCenterDbContext>();
 }