item editing

src/items/dto/edit-item.input.ts

@@ -0,0 +1,16 @@
+import { Field, ID, InputType } from '@nestjs/graphql';
+
+@InputType()
+export class EditItemInput {
+  @Field((type) => ID)
+  id: string;
+
+  @Field({ nullable: true })
+  name?: string;
+
+  @Field({ nullable: true })
+  notes?: string;
+
+  @Field((type) => ID, { nullable: true })
+  parent?: string;
+}

src/items/items.resolver.ts

@@ -7,6 +7,7 @@ import {
   ResolveField,
   Resolver,
 } from '@nestjs/graphql';
+import { EditItemInput } from './dto/edit-item.input';
 import { NewItemInput } from './dto/new-item.input';
 import { EANService } from './ean/ean.service';
 import { ItemModel, PaginatedItems } from './items.model';
@@ -58,6 +59,11 @@ export class ItemsResolver {
     return this.itemsService.createItem(itemData);
   }
 
+  @Mutation((returns) => ItemModel)
+  async editItem(@Args('input') input: EditItemInput) {
+    return this.itemsService.editItem(input);
+  }
+
   @Mutation((returns) => ItemModel)
   async deleteItem(@Args('id', { type: () => ID }) itemId: string) {
     return this.itemsService.deleteItem(itemId);

src/items/items.service.ts

@@ -3,6 +3,7 @@ import { InjectEntityManager, InjectRepository } from '@nestjs/typeorm';
 import { EntityManager, Repository, TreeRepository } from 'typeorm';
 import assert from 'assert';
 import { NewItemInput } from './dto/new-item.input';
+import { EditItemInput } from './dto/edit-item.input';
 import { EANService } from './ean/ean.service';
 import { Item } from './items.entity';
 import { ItemModel, PaginatedItems } from './items.model';
@@ -118,6 +119,23 @@ export class ItemsService {
     return item;
   }
 
+  async editItem(input: EditItemInput) {
+    const item = await this.itemRepository.findOneOrFail(
+      this.eans.toID(input.id),
+    );
+    const edited: Item = {
+      ...item,
+      ...input,
+      // input.id can be an EAN-13
+      id: item.id,
+      parent: input.parent
+        ? await this.itemRepository.findOneOrFail(this.eans.toID(input.parent))
+        : undefined,
+    };
+    await this.itemRepository.save(edited);
+    return edited;
+  }
+
   async deleteItem(id: string) {
     const item = await this.itemRepository.findOne(this.eans.toID(id));
     if (!item) {