S16 postgresql opslag added

agiledancers-fe/src/app/core/school-api.spec.ts

@@ -18,13 +18,17 @@ describe('SchoolApi contract', () => {
   it('loads all resources from the same school', () => {
     const received = vi.fn();
     api.schoolData(7).subscribe(received);
-    const school = { id: 7, name: 'Studio', dancerIds: [], danceGroupIds: [], showIds: [] };
-    http.expectOne('/api/dance-schools/7').flush(school);
-    http.expectOne('/api/dance-schools/7/dancers').flush([]);
-    http.expectOne('/api/dance-schools/7/dance-groups').flush([]);
-    expect(received).not.toHaveBeenCalled();
-    http.expectOne('/api/dance-schools/7/shows').flush([]);
-    http.expectOne('/api/dance-schools/7/coaches').flush([]);
+    const school = {
+      id: 7,
+      name: 'Studio',
+      revision: 0,
+      dancerIds: [],
+      danceGroupIds: [],
+      showIds: [],
+    };
+    http
+      .expectOne('/api/dance-schools/7/data')
+      .flush({ school, dancers: [], groups: [], shows: [], coaches: [] });
     expect(received).toHaveBeenCalledWith({
       school,
       dancers: [],
@@ -34,12 +38,32 @@ describe('SchoolApi contract', () => {
     });
   });
 
+  it('sends the loaded school revision without retrying a stale mutation', () => {
+    api.schoolData(7).subscribe();
+    http
+      .expectOne('/api/dance-schools/7/data')
+      .flush({ school: { id: 7, revision: 4 }, dancers: [], groups: [], shows: [], coaches: [] });
+    const failure = vi.fn();
+    api.saveDancer(7, { name: 'Sam', birthDate: '2010-05-12' }).subscribe({ error: failure });
+    const request = http.expectOne('/api/dance-schools/7/dancers');
+    expect(request.request.headers.get('X-School-Revision')).toBe('4');
+    request.flush({ message: 'Herlaad de gegevens' }, { status: 409, statusText: 'Conflict' });
+    expect(failure).toHaveBeenCalledOnce();
+  });
+
   it('updates an existing entity even when its id is zero', () => {
     api.saveSchool({ name: 'Renamed' }, 0).subscribe();
     const request = http.expectOne('/api/dance-schools/0');
     expect(request.request.method).toBe('PUT');
     expect(request.request.body).toEqual({ name: 'Renamed' });
-    request.flush({ id: 0, name: 'Renamed', dancerIds: [], danceGroupIds: [], showIds: [] });
+    request.flush({
+      id: 0,
+      name: 'Renamed',
+      revision: 0,
+      dancerIds: [],
+      danceGroupIds: [],
+      showIds: [],
+    });
   });
 
   it('keeps group details separate from memberships', () => {