chore: format

src/app.module.ts

@@ -4,8 +4,8 @@ import { AppController } from './app.controller'
 import { InitModule } from './modules/init/init.module'
 import { UserModule } from './modules/user/user.module'
 import { HelperModule } from './modules/helper/helper.module'
-import { PostModule } from './modules/post/post.module';
-import { CategoryModule } from './modules/category/category.module';
+import { PostModule } from './modules/post/post.module'
+import { CategoryModule } from './modules/category/category.module'
 
 @Module({
   imports: [

src/common/exceptions/cant-find.exception.ts

@@ -0,0 +1,15 @@
+import { NotFoundException } from '@nestjs/common'
+import { sample } from 'lodash'
+export const NotFoundMessage = [
+  '真不巧, 内容走丢了 o(╥﹏╥)o',
+  '电波无法到达 ωω',
+  '数据..不小心丢失了啦 π_π',
+  '404, 这也不是我的错啦 (๐•̆ ·̭ •̆๐)',
+  '嘿, 这里空空如也, 不如别处走走?',
+]
+
+export class CannotFindException extends NotFoundException {
+  constructor() {
+    super(sample(NotFoundMessage))
+  }
+}

src/modules/post/post.controller.spec.ts

@@ -1,18 +1,18 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { PostController } from './post.controller';
+import { Test, TestingModule } from '@nestjs/testing'
+import { PostController } from './post.controller'
 
 describe('PostController', () => {
-  let controller: PostController;
+  let controller: PostController
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
       controllers: [PostController],
-    }).compile();
+    }).compile()
 
-    controller = module.get<PostController>(PostController);
-  });
+    controller = module.get<PostController>(PostController)
+  })
 
   it('should be defined', () => {
-    expect(controller).toBeDefined();
-  });
-});
+    expect(controller).toBeDefined()
+  })
+})

src/modules/post/post.service.ts

@@ -6,6 +6,7 @@ import {
 } from '@nestjs/common'
 import { ReturnModelType } from '@typegoose/typegoose'
 import { InjectModel } from 'nestjs-typegoose'
+import { CannotFindException } from '~/common/exceptions/cant-find.exception'
 import { CategoryService } from '../category/category.service'
 import { PostModel } from './post.model'
 
@@ -27,7 +28,21 @@ export class PostService {
     if (!category) {
       throw new UnprocessableEntityException('分类丢失了 ಠ_ಠ')
     }
-    const res = this.postModel.create(post)
+    const res = await this.postModel.create({
+      ...post,
+      categoryId: category.id,
+      created: new Date(),
+      modified: null,
+    })
+    // TODO: clean cache
     return res
   }
+
+  async findPostById(id: string) {
+    const doc = await this.postModel.findById(id).populate('category')
+    if (!doc) {
+      throw new CannotFindException()
+    }
+    return doc
+  }
 }

src/shared/base.model.ts

@@ -45,8 +45,8 @@ export abstract class WriteBaseModel extends BaseCommentIndexModel {
   @prop({ type: Image })
   images?: Image[]
 
-  @prop({ default: () => new Date() })
-  modified: Date
+  @prop({ default: null })
+  modified: Date | null
 }
 
 @modelOptions({