fix(category): handle null category in category service

Innei · Innei · commit 71f4f91f41fe · 2026-03-22T20:17:52.000+08:00
- Added a null check for the category in the CategoryService to return null if the category is not found.
- Updated PostService to use category._id or category.id for categoryId assignment when creating a new post.
- Imported extractDocumentContext in lexical-translation-parser tests for improved utility access.

Signed-off-by: Innei &lt;tukon479@gmail.com&gt;
diff --git a/apps/core/src/modules/category/category.service.ts b/apps/core/src/modules/category/category.service.ts
@@ -1,6 +1,9 @@
 import { Injectable, OnApplicationBootstrap } from '@nestjs/common'
 import { ModuleRef } from '@nestjs/core'
 import type { DocumentType, ReturnModelType } from '@typegoose/typegoose'
+import { omit } from 'es-toolkit/compat'
+import type { QueryFilter } from 'mongoose'
+
 import { BizException } from '~/common/exceptions/biz.exception'
 import { CannotFindException } from '~/common/exceptions/cant-find.exception'
 import { NoContentCanBeModifiedException } from '~/common/exceptions/no-content-canbe-modified.exception'
@@ -12,8 +15,7 @@ import { POST_SERVICE_TOKEN } from '~/constants/injection.constant'
 import { EventManagerService } from '~/processors/helper/helper.event.service'
 import { InjectModel } from '~/transformers/model.transformer'
 import { scheduleManager } from '~/utils/schedule.util'
-import { omit } from 'es-toolkit/compat'
-import type { QueryFilter } from 'mongoose'
+
 import type { PostModel } from '../post/post.model'
 import type { PostService } from '../post/post.service'
 import { SlugTrackerService } from '../slug-tracker/slug-tracker.service'
@@ -42,6 +44,9 @@ export class CategoryService implements OnApplicationBootstrap {
       this.model.findById(categoryId).lean(),
       this.postService.model.countDocuments({ categoryId }),
     ])
+    if (!category) {
+      return null
+    }
     return {
       ...category,
       count,
diff --git a/apps/core/src/modules/post/post.service.ts b/apps/core/src/modules/post/post.service.ts
@@ -2,7 +2,6 @@ import { Injectable, OnApplicationBootstrap } from '@nestjs/common'
 import { ModuleRef } from '@nestjs/core'
 import { debounce, omit } from 'es-toolkit/compat'
 import type { AggregatePaginateModel, Document } from 'mongoose'
-import { Types } from 'mongoose'
 import slugify from 'slugify'
 
 import {
@@ -92,7 +91,7 @@ export class PostService implements OnApplicationBootstrap {
     const newPost = await this.postModel.create({
       ...post,
       slug,
-      categoryId: new Types.ObjectId(String(categoryId)),
+      categoryId: category._id ?? category.id,
       created: getLessThanNow(post.created),
       modified: null,
       meta: post.meta
diff --git a/apps/core/test/src/modules/ai/lexical-translation-parser.spec.ts b/apps/core/test/src/modules/ai/lexical-translation-parser.spec.ts
@@ -1,10 +1,10 @@
 import { describe, expect, it } from 'vitest'
 
 import {
-  extractDocumentContext,
   parseLexicalForTranslation,
   restoreLexicalTranslation,
 } from '~/modules/ai/ai-translation/lexical-translation-parser'
+import { extractDocumentContext } from '~/utils/content.util'
 
 const makeEditorState = (children: any[]) =>
   JSON.stringify({ root: { children, type: 'root', direction: 'ltr' } })
