how to use unionEntities for custom created entities.

[uganjha]

In my project we have multiple entities which needs to join and create union out of it.

I have defined a custom entity with props

interface TodoUI {
  id: number;
  open: boolean;
}
interface Todo {
  id: number;
  name: string;
}
interface TodoUITest {
  id: number;
  close: boolean;
}
const { uiTest2EntitiesRef, withUiTest2Entities } =
  entitiesPropsFactory('uiTest2');
const todosStore = createStore(
  { name: 'todos' },
  withEntities<Todo>(),
  // withUIEntities<TodoUI>(),
  withUiTest2Entities<TodoUITest>()
);

but not able to union those entities with below code

todosStore
  .combine({
    entities: todosStore.pipe(selectAllEntities()),
    UIEntities: todosStore.pipe(selectAllEntities({ ref: UIEntitiesRef })),
    UiTest2Entities: todosStore.pipe(
      selectAllEntities({ ref: UiTest2EntitiesRef })
    ),
  })
  .pipe(unionEntities())
  .subscribe(console.log);

I can union by some other library but wanted to check if it can be done using elf library.
Stack blitz for same https://stackblitz.com/edit/etjjro?file=index.ts

[NetanelBasal]

No. The union function is only for entities and UIEentities. https://github.com/ngneat/elf/blob/master/packages/entities/src/lib/union-entities.ts#L13