S16 postgresql opslag added

agiledancers-fe/src/app/schools/school-page.html

@@ -477,6 +477,7 @@
     <app-entity-editor
       [target]="target"
       [schoolId]="context.school.id"
+      [revision]="context.school.revision"
       [shows]="context.shows"
       (closed)="editor.set(null)"
       (saved)="saved()"
@@ -487,6 +488,7 @@
       [show]="show"
       [groups]="context.groups"
       [schoolId]="context.school.id"
+      [revision]="context.school.revision"
       (closed)="scheduleEditing.set(null)"
       (saved)="reload()"
     />
@@ -495,6 +497,7 @@
     <app-group-members
       [group]="group"
       [schoolId]="context.school.id"
+      [revision]="context.school.revision"
       [dancers]="context.dancers"
       (closed)="members.set(null)"
       (changed)="membershipChanged($event)"

agiledancers-fe/src/app/schools/school-page.ts

@@ -219,7 +219,10 @@ export class SchoolPage implements OnInit {
         .join(', ') || 'Nog geen groep'
     );
   }
+  private deletionRevision?: number;
+
   askDelete(target: DeleteTarget): void {
+    this.deletionRevision = this.data()?.school.revision;
     this.deleteError.set('');
     if (target.kind === 'group') {
       const names =
@@ -255,7 +258,9 @@ export class SchoolPage implements OnInit {
     this.deleteBusy.set(true);
     this.deleteError.set('');
     try {
-      await firstValueFrom(this.api.delete(target.kind, schoolId, target.id));
+      await firstValueFrom(
+        this.api.delete(target.kind, schoolId, target.id, this.deletionRevision),
+      );
       this.deleting.set(null);
       if (target.kind === 'school') await this.router.navigate(['/schools']);
       else {