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115046: Fixed issue where relationsToItems would never emit when an empty array was passed to it

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This commit is contained in:
Alexandre Vryghem
2024-06-03 13:50:42 +02:00
parent 8ee375016f
commit 6d1e6f90fc
1 changed files with 12 additions and 11 deletions
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23
src/app/item-page/simple/item-types/shared/item-relationships-utils.ts
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@@ -1,4 +1,4 @@
import { combineLatest as observableCombineLatest, Observable, zip as observableZip } from 'rxjs';
import { combineLatest as observableCombineLatest, Observable, of as observableOf, zip as observableZip } from 'rxjs';
import { distinctUntilChanged, map, mergeMap, switchMap } from 'rxjs/operators';
import { PaginatedList } from '../../../../core/data/paginated-list.model';
import { RemoteData } from '../../../../core/data/remote-data';
@@ -46,17 +46,19 @@ export const compareArraysUsingIds = <T extends { id: string }>() =>
/**
* Operator for turning a list of relationships into a list of the relevant items
* @param {string} thisId The item's id of which the relations belong to
* @returns {(source: Observable<Relationship[]>) => Observable<Item[]>}
*/
export const relationsToItems = (thisId: string) =>
export const relationsToItems = (thisId: string): (source: Observable<Relationship[]>) => Observable<Item[]> =>
(source: Observable<Relationship[]>): Observable<Item[]> =>
source.pipe(
mergeMap((rels: Relationship[]) =>
observableZip(
...rels.map((rel: Relationship) => observableCombineLatest(rel.leftItem, rel.rightItem))
)
),
map((arr) =>
mergeMap((relationships: Relationship[]) => {
if (relationships.length === 0) {
return observableOf([]);
}
return observableZip(
...relationships.map((rel: Relationship) => observableCombineLatest([rel.leftItem, rel.rightItem])),
);
}),
map((arr: [RemoteData<Item>, RemoteData<Item>][]) =>
arr
.filter(([leftItem, rightItem]) => leftItem.hasSucceeded && rightItem.hasSucceeded)
.map(([leftItem, rightItem]) => {
@@ -75,9 +77,8 @@ export const relationsToItems = (thisId: string) =>
* Operator for turning a paginated list of relationships into a paginated list of the relevant items
* The result is wrapped in the original RemoteData and PaginatedList
* @param {string} thisId The item's id of which the relations belong to
* @returns {(source: Observable<Relationship[]>) => Observable<Item[]>}
*/
export const paginatedRelationsToItems = (thisId: string) =>
export const paginatedRelationsToItems = (thisId: string): (source: Observable<RemoteData<PaginatedList<Relationship>>>) => Observable<RemoteData<PaginatedList<Item>>> =>
(source: Observable<RemoteData<PaginatedList<Relationship>>>): Observable<RemoteData<PaginatedList<Item>>> =>
source.pipe(
getFirstSucceededRemoteData(),