add: 支持添加评论

src/app.module.ts

@@ -17,6 +17,7 @@ import { AdminModule } from './admin/admin.module';
       password: 'LXDW4RjtyYdGKh64',
       database: 'sunny-blog',
       entities: [__dirname + '/**/*.entity{.ts,.js}'],
+      synchronize: true,
     },
   ), UserModule, AuthModule, PostModule, AdminModule],
   controllers: [AppController],

src/entity/comment.entity.ts

@@ -1,6 +1,5 @@
 import { Column, Entity, ManyToOne, OneToOne, PrimaryGeneratedColumn } from 'typeorm';
 import { Post } from './post.entity';
-import { User } from './user.entity';
 
 /**
  * 评论表
@@ -8,7 +7,7 @@ import { User } from './user.entity';
 @Entity()
 export class Comment {
   @PrimaryGeneratedColumn()
-  id: number;
+  id?: number;
 
   @Column()
   name: string;

src/entity/post.entity.ts

@@ -32,7 +32,7 @@ export class Post {
   comments?: Comment[];      // 评论
 
   @ManyToOne(type => User, user => user.posts)
-  owner: User;
+  owner?: User;
 
   @CreateDateColumn()
   createdAt?: string;

src/model/response-util.ts

@@ -33,7 +33,7 @@ export class ResponseUtil {
     }
   }
 
-  static fail(message, code = StatusCode.COMMENT_ERROR) {
+  static fail(message = '请求失败', code = StatusCode.COMMENT_ERROR) {
     return {
       statusCode: code,
       error: '',

src/post/dto/add-comment.dto.ts

@@ -0,0 +1,15 @@
+import { IsNumber, IsString } from 'class-validator';
+
+export class AddCommentDto {
+  @IsString()
+  name: string;
+
+  @IsString()
+  email: string;
+
+  @IsString()
+  content: string;
+
+  @IsNumber()
+  postId: number;
+}

src/post/post.controller.ts

@@ -1,6 +1,7 @@
-import { Controller, Get, Param, Query } from '@nestjs/common';
+import { Body, Controller, Get, Param, Post, Query } from '@nestjs/common';
 import { PostService } from './post.service';
 import { ResponseUtil } from '../model/response-util';
+import { AddCommentDto } from './dto/add-comment.dto';
 
 @Controller('post')
 export class PostController {
@@ -27,4 +28,19 @@ export class PostController {
     const post = await this.postService.getPostById(id);
     return ResponseUtil.success(post);
   }
+
+  @Post('addComment')
+  async addComment(@Body() addCommentDto: AddCommentDto) {
+    const result = await this.postService.saveComment(
+      addCommentDto.postId,
+      addCommentDto.name,
+      addCommentDto.email,
+      addCommentDto.content,
+    );
+    if (result) {
+      return ResponseUtil.success();
+    } else {
+      return ResponseUtil.fail();
+    }
+  }
 }

src/post/post.service.ts

@@ -80,6 +80,7 @@ export class PostService {
       .skip((page - 1) * size)
       .limit(size)
       .leftJoinAndSelect('post.tags', 'tag')
+      .leftJoinAndSelect('post.comments', 'comments')
       .getMany();
   }
 
@@ -94,6 +95,7 @@ export class PostService {
       .skip((page - 1) * size)
       .limit(size)
       .leftJoinAndSelect('post.tags', 'tag')
+      .leftJoinAndSelect('post.comments', 'comments')
       .where('tag.id = :id', { id: tagId })
       .getMany();
   }
@@ -106,7 +108,7 @@ export class PostService {
     return await this.postRepository.findOne({
       id: postId,
     }, {
-      relations: ['tags'],
+      relations: ['tags', 'comments'],
     });
   }
 
@@ -114,6 +116,20 @@ export class PostService {
   /////// 评论相关
   ////////////////////////////////////////////////////////////////////
 
-  // async saveComment(postId: number, name: string, email: string, content: string) {
-  // }
+  async saveComment(postId: number, name: string, email: string, content: string) {
+    const post: Post = await this.postRepository.findOne({
+      id: postId,
+    });
+    if (!post) {
+      return null;
+    }
+
+    const comment: Comment = {
+      post,
+      name,
+      email,
+      content,
+    };
+    return await this.commentRepository.save(comment);
+  }
 }