item ancestors

src/items/items.model.ts

@@ -16,6 +16,9 @@ export class ItemModel {
   @Field({ nullable: true })
   parent?: ItemModel;
 
+  @Field((type) => [ItemModel])
+  ancestors: ItemModel[];
+
   @Field((type) => [ItemModel])
   children: ItemModel[];
 

src/items/items.resolver.ts

@@ -25,6 +25,11 @@ export class ItemsResolver {
     return this.itemsService.getItemParent(item);
   }
 
+  @ResolveField()
+  async ancestors(@Parent() item: ItemModel) {
+    return this.itemsService.getItemAncestors(item);
+  }
+
   @ResolveField()
   async children(@Parent() item: ItemModel) {
     return this.itemsService.getItemChildren(item);

src/items/items.service.ts

@@ -28,6 +28,14 @@ export class ItemsService {
     return childItem.parent;
   }
 
+  async getItemAncestors(item: ItemModel): Promise<Item[]> {
+    const childItem = await this.itemRepository.findOneOrFail(item.id, {
+      relations: ['parent'],
+    });
+    // TreeRepository.findAncestors()[0] is always the child item
+    return (await this.treeRepository.findAncestors(childItem)).slice(1);
+  }
+
   async getItemChildren(item: ItemModel): Promise<Item[]> {
     return this.itemRepository.find({
       where: {