add content

src/modules/content/controllers/post.controller.ts

@@ -7,10 +7,14 @@ import {
     Param,
     Patch,
     Post,
+    ValidationPipe,
 } from '@nestjs/common';
 
 import { isNil } from '@nestjs/common/utils/shared.utils';
 
+import { CreatePostDto } from '@/modules/content/dtos/create-post.dto';
+import { UpdatePostDto } from '@/modules/content/dtos/update-post.dto';
+
 import { PostEntity } from '../types';
 
 let posts: PostEntity[] = [
@@ -39,7 +43,18 @@ export class PostController {
     }
 
     @Post()
-    async store(@Body() data: PostEntity) {
+    async store(
+        @Body(
+            new ValidationPipe({
+                transform: true,
+                forbidNonWhitelisted: true,
+                forbidUnknownValues: true,
+                validationError: { target: false },
+                groups: ['create'],
+            }),
+        )
+        data: CreatePostDto,
+    ) {
         const newPost: PostEntity = {
             id: Math.max(...posts.map(({ id }) => id + 1)),
             ...data,
@@ -49,14 +64,25 @@ export class PostController {
     }
 
     @Patch()
-    async update(@Body() data: PostEntity) {
-        let toUpdate = posts.find((item) => item.id === Number(data.id));
+    async update(
+        @Body(
+            new ValidationPipe({
+                transform: true,
+                forbidNonWhitelisted: true,
+                forbidUnknownValues: true,
+                validationError: { target: false },
+                groups: ['update'],
+            }),
+        )
+        { id, ...data }: UpdatePostDto,
+    ) {
+        let toUpdate = posts.find((item) => item.id === Number(id));
         if (isNil(toUpdate)) {
-            throw new NotFoundException(`the post with id ${data.id} not exits!`);
+            throw new NotFoundException(`the post with id ${id} not exits!`);
         }
 
         toUpdate = { ...toUpdate, ...data };
-        posts = posts.map((item) => (item.id === Number(data.id) ? toUpdate : item));
+        posts = posts.map((item) => (item.id === Number(id) ? toUpdate : item));
         return toUpdate;
     }
 

src/modules/content/dtos/create-post.dto.ts

@@ -0,0 +1,18 @@
+import { Injectable } from '@nestjs/common';
+import { IsNotEmpty, IsOptional, MaxLength } from 'class-validator';
+
+@Injectable()
+export class CreatePostDto {
+    @MaxLength(255, { always: true, message: 'the max length of content title is $constraint1' })
+    @IsNotEmpty({ groups: ['create'], message: 'the title of content should not be empty' })
+    @IsOptional({ groups: ['update'] })
+    title: string;
+
+    @IsNotEmpty({ groups: ['create'], message: 'the body of content should not be empty' })
+    @IsOptional({ groups: ['update'] })
+    body: string;
+
+    @MaxLength(500, { always: true, message: 'the max length of content summary is $constraint1' })
+    @IsOptional({ always: true })
+    summary?: string;
+}

src/modules/content/dtos/update-post.dto.ts

@@ -0,0 +1,13 @@
+import { Injectable } from '@nestjs/common';
+import { PartialType } from '@nestjs/swagger';
+
+import { IsDefined, IsNumber } from 'class-validator';
+
+import { CreatePostDto } from './create-post.dto';
+
+@Injectable()
+export class UpdatePostDto extends PartialType(CreatePostDto) {
+    @IsNumber(undefined, { groups: ['update'], message: 'The format of the post ID is incorrect.' })
+    @IsDefined({ groups: ['update'], message: 'The post ID must be specified' })
+    id: number;
+}