constructor(loggerBase: Logger,
private activatedRoute: ActivatedRoute,
private router: Router,
private store: SlideStore) {
this.logger = loggerBase.source('SlideComponent');
this.slideCollection$ = Observable.fromPromise(store.findMany());
this.slides$ = this.slideCollection$.flatMap(c => Observable.from(c));
this.slideCount$ = this.slides$.count();
}