odata expand for files

WEB/src/app/data/edit-song.service.ts

@@ -56,7 +56,8 @@ export class EditSongService {
         SongType: null,
         Key: null,
         Comments: null,
-        Final: false
+        Final: false,
+        Files: []
       };
 
       return song;

WEB/src/app/data/odata.service.ts

@@ -1,5 +1,5 @@
 import { Song } from 'src/app/models/song.model';
-import { ODataService, ODataQuery } from 'odata-v4-ng';
+import { ODataService, ODataQuery, Expand } from 'odata-v4-ng';
 import { Observable } from 'rxjs';
 import { map, tap } from 'rxjs/operators';
 import { base } from './urls';
@@ -21,11 +21,13 @@ export class OdataService {
 
   public get$<TResponse>(
     id: number,
-    properties: string[]
+    properties: string[],
+    expands: string[]
   ): Observable<TResponse> {
     const query = new ODataQuery(this.odataService, this.url)
       .entitySet(this.entity)
       .entityKey(id)
+      .expand(expands.map(_ => new Expand(_)))
       .select(properties);
     const get = query.get().pipe(map(_ => _.toEntity<TResponse>()));
 

WEB/src/app/data/songs.service.ts

@@ -45,9 +45,10 @@ export class SongsService extends OdataService {
       return;
     }
 
-    this.get$<Song>(id, ['Text', 'Comments']).subscribe(_ => {
+    this.get$<Song>(id, ['Text', 'Comments'], ['Files']).subscribe(_ => {
       song.Text = _.Text;
       song.Comments = _.Comments;
+      song.Files = _.Files;
       this.selectedSong.next(song);
     });
   }

WEB/src/app/models/file.model.ts

@@ -0,0 +1,6 @@
+import { FileType } from './files-types.model.ts';
+export interface File {
+  ID: number;
+  Name: string;
+  FileType: FileType;
+}

WEB/src/app/models/files-types.model.ts.ts

@@ -0,0 +1,6 @@
+export enum FileType {
+  None = 'None',
+  Sheet = 'Sheet',
+  Chords = 'Chords',
+  MuseScore = 'MuseScore'
+}

WEB/src/app/models/song.model.ts

@@ -1,3 +1,5 @@
+import { File } from './file.model';
+
 export interface Song {
   ID: number;
   Number: number;
@@ -8,4 +10,5 @@ export interface Song {
   Tempo: number;
   SongType: string;
   Final: boolean;
+  Files: File[];
 }