From 9e22638fc282d254a00fb882d259c09a3773db53 Mon Sep 17 00:00:00 2001
From: Lauren Liberda <laura@selfisekai.rocks>
Date: Tue, 20 Jul 2021 23:32:48 +0200
Subject: [PATCH] item ancestors

---
 src/items/items.model.ts    | 3 +++
 src/items/items.resolver.ts | 5 +++++
 src/items/items.service.ts  | 8 ++++++++
 3 files changed, 16 insertions(+)

diff --git a/src/items/items.model.ts b/src/items/items.model.ts
index b583259..0e1f742 100644
--- a/src/items/items.model.ts
+++ b/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[];
 
diff --git a/src/items/items.resolver.ts b/src/items/items.resolver.ts
index 78bac4d..81d6c95 100644
--- a/src/items/items.resolver.ts
+++ b/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);
diff --git a/src/items/items.service.ts b/src/items/items.service.ts
index 5d1de00..0e577e5 100644
--- a/src/items/items.service.ts
+++ b/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: {