edit song

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

@@ -1,29 +1,45 @@
-import { ODataService, ODataQuery } from 'odata-v4-ng';
-import { Observable } from 'rxjs';
-import { map } from 'rxjs/operators';
-import { base } from './urls';
+import { ODataService, ODataQuery } from "odata-v4-ng";
+import { Observable } from "rxjs";
+import { map, tap } from "rxjs/operators";
+import { base } from "./urls";
 
 export class OdataService {
   private url: string;
   constructor(private odataService: ODataService, private entity: string) {
-    this.url = base + '/odata/';
+    this.url = base + "/odata/";
   }
 
-  public list<TResponse>(): Observable<TResponse[]> {
-    const query = new ODataQuery(this.odataService, this.url).entitySet(
-      this.entity
-    );
+  public list<TResponse>(properties: string[]): Observable<TResponse[]> {
+    const query = new ODataQuery(this.odataService, this.url)
+      .entitySet(this.entity)
+      .select(properties);
     const get = query.get().pipe(map(_ => _.toPropertyValue<TResponse[]>()));
 
     return get;
   }
 
-  public get<TResponse>(id: number): Observable<TResponse> {
+  public get<TResponse>(
+    id: number,
+    properties: string[]
+  ): Observable<TResponse> {
     const query = new ODataQuery(this.odataService, this.url)
       .entitySet(this.entity)
-      .entityKey(id);
+      .entityKey(id)
+      .select(properties);
     const get = query.get().pipe(map(_ => _.toEntity<TResponse>()));
 
     return get;
   }
+
+  public patch(id: number, control: string, value: any): Observable<boolean> {
+    const valueSet = { [control]: value };
+    const query = new ODataQuery(this.odataService, this.url)
+      .entitySet(this.entity)
+      .entityKey(id);
+    const get = query.patch(valueSet).pipe(
+      map(() => true)
+    );
+
+    return get;
+  }
 }