Zusätzliche Felder

src/app/songs/services/file-data.service.ts

@@ -1,6 +1,9 @@
 import {Injectable} from '@angular/core';
 import {SongDataService} from './song-data.service';
 import {File} from './file';
+import {Observable} from 'rxjs';
+import {map} from 'rxjs/operators';
+import {FileServer} from './fileServer';
 
 @Injectable({
   providedIn: 'root'
@@ -10,10 +13,22 @@ export class FileDataService {
   constructor(private songDataService: SongDataService) {
   }
 
-  public async put(songId: string, file: File): Promise<string> {
+  public async put(songId: string, file: FileServer): Promise<string> {
     const songRef = this.songDataService.getSongRef(songId);
     const fileCollection = songRef.collection('files');
     const id = await fileCollection.add(file);
     return id.id;
   }
+
+  public get$(songId: string): Observable<File[]> {
+    const songRef = this.songDataService.getSongRef(songId);
+    return songRef.collection<File>('files').snapshotChanges().pipe(map(actions => {
+      return actions.map(a => ({
+        ...a.payload.doc.data(),
+        id: a.payload.doc.id
+      }));
+    }));
+  }
+
+
 }