error => {
   if (error.status == 400) {
     let errorContent = error.json();
     for (let em in errorContent)
       for (let e of errorContent[em])
         this.notify.error(em, e);
   }
   else if (error.status == 401)
     this.notify.error('Authentication Failed', 'Wrong Passoword');
 });

 () => {
   this.notificationsService.success(
     this.i18n('Success'),
     this.i18n('User {{username}} updated.', { username: this.username })
   )
   this.router.navigate([ '/admin/users/list' ])
 },

 // Notification Shortcut
 display(kind, header, body) {
   switch (kind) {
     case 'success': {
       this._service.success(header, body, {});
       break;
     }
     case 'error': {
       this._service.error(header, body, {});
       break;
     }
     case 'warn': {
       this._service.warn(header, body, {});
       break;
     }
   }
 }

 logout() {
   localStorage.removeItem('access_token');
   this.notify.info('Logged out', 'Goodbye');
   setTimeout(() => {
     this.router.navigate(['/login']);
   }, 10);
 }

 () => {
   this.authService.refreshUserInformation()
   this.notificationsService.success(
     this.i18n('Success'),
     this.i18n('Video channel {{videoChannelName}} created.', { videoChannelName: videoChannelCreate.displayName })
   )
   this.router.navigate([ '/my-account', 'video-channels' ])
 },

 error => {
   if (error.status == 400) {
     let errorContent = error.json();
     console.log(errorContent);
     for (let em in errorContent)
       for (let e of errorContent[em])
         this.notify.error(em.toUpperCase(), e);
   }
 });

 canActivate(route: ActivatedRouteSnapshot, 
             state: RouterStateSnapshot): Observable<boolean>|boolean {
     console.log('AdminGuard#canActivate called');
     if (this.user.isAdmin) {
         return true
     }
     // not logged in so redirect to login page
     this.notService.error('Admin', 
                           'Login as an admin to access this page', 
                           {setTimeout: 5000})
 }

 shield(post){
   this.http.put('/api/post/'+post._id, {isShielded: true}).subscribe();
   post.isShielded = true;
   this._notificationsService.alert(
     '成功隐藏博客',
     '管理员大大辛苦啦~',
     {
         timeOut: 2000,
         showProgressBar: true,
         pauseOnHover: true,
         clickToClose: false
     });
 }

 Unshield(post){
   this.http.put('/api/post/'+post._id, {isShielded: false}).subscribe();
   post.isShielded = false;
   this._notificationsService.info(
     '取消隐藏博客',
     '文明上网~',
     {
         timeOut: 2000,
         showProgressBar: true,
         pauseOnHover: true,
         clickToClose: false
     });
 }

 showSuccess() {
     this._notificationsService.success(
         'Correcto',
         'La ubicación fue guardada correctamente',
         {
             timeOut: 3000,
             showProgressBar: true,
             pauseOnHover: false,
             clickToClose: true,
             maxLength: 100,
             position: ['top', 'right'],
         }
     );
 }