feat: add post entity

src/app.module.ts

@@ -6,6 +6,7 @@ import { ConfigModule, ConfigService } from '@nestjs/config';
 import { ServeStaticModule } from '@nestjs/serve-static';
 import { join } from 'path';
 import { AuthModule } from './auth/auth.module';
+import { PostsModule } from './posts/posts.module';
 import { UsersModule } from './users/users.module';
 
 @Module({
@@ -25,6 +26,7 @@ import { UsersModule } from './users/users.module';
       }),
       inject: [ConfigService],
     }),
+    PostsModule,
     ServeStaticModule.forRoot({
       rootPath: join(__dirname, '..', 'uploads'),
       serveRoot: '/uploads',

src/common/entities/base.entity.ts

@@ -0,0 +1,12 @@
+import { PrimaryKey, Property } from '@mikro-orm/core';
+
+export abstract class BaseEntity {
+  @PrimaryKey()
+  id: number;
+
+  @Property()
+  createdAt = new Date();
+
+  @Property({ onUpdate: () => new Date() })
+  updatedAt = new Date();
+}

src/posts/dto/create-post.dto.ts

@@ -0,0 +1 @@
+export class CreatePostDto {}

src/posts/dto/update-post.dto.ts

@@ -0,0 +1,4 @@
+import { PartialType } from '@nestjs/mapped-types';
+import { CreatePostDto } from './create-post.dto';
+
+export class UpdatePostDto extends PartialType(CreatePostDto) {}

src/posts/entities/post-comment.entity.ts

@@ -0,0 +1,16 @@
+import { Entity, ManyToOne, Property } from '@mikro-orm/core';
+import { BaseEntity } from 'src/common/entities/base.entity';
+import { User } from 'src/users/entities/user.entity';
+import { Post } from './post.entity';
+
+@Entity()
+export class PostComment extends BaseEntity {
+  @Property()
+  text: string;
+
+  @ManyToOne({ entity: () => User, inversedBy: 'comments' })
+  author: User;
+
+  @ManyToOne({ entity: () => Post, inversedBy: 'comments' })
+  post: Post;
+}

src/posts/entities/post-location.embeddable.ts

@@ -0,0 +1,10 @@
+import { Embeddable, Property } from '@mikro-orm/core';
+
+@Embeddable()
+export class PostLocation {
+  @Property()
+  latitude: number;
+
+  @Property()
+  longitude: number;
+}

src/posts/entities/post-sticker.embeddable.ts

@@ -0,0 +1,16 @@
+import { Embeddable, Property } from '@mikro-orm/core';
+
+@Embeddable()
+export class PostSticker {
+  @Property()
+  id: number;
+
+  @Property()
+  x: number;
+
+  @Property()
+  y: number;
+
+  @Property()
+  rotation: number;
+}

src/posts/entities/post.entity.ts

@@ -0,0 +1,38 @@
+import {
+  Collection,
+  Embedded,
+  Entity,
+  ManyToMany,
+  ManyToOne,
+  OneToMany,
+  Property,
+} from '@mikro-orm/core';
+import { BaseEntity } from 'src/common/entities/base.entity';
+import { User } from 'src/users/entities/user.entity';
+import { PostComment } from './post-comment.entity';
+import { PostLocation } from './post-location.embeddable';
+import { PostSticker } from './post-sticker.embeddable';
+
+@Entity()
+export class Post extends BaseEntity {
+  @Property()
+  imageUrl: string;
+
+  @Property()
+  caption: string;
+
+  @ManyToOne({ entity: () => User, inversedBy: 'posts' })
+  author: User;
+
+  @Embedded(() => PostSticker, { array: true })
+  stickers: PostSticker[] = [];
+
+  @ManyToMany({ entity: () => User, inversedBy: 'likedPosts' })
+  likedBy = new Collection<User>(this);
+
+  @OneToMany({ entity: () => PostComment, mappedBy: 'post' })
+  comments = new Collection<PostComment>(this);
+
+  @Embedded(() => PostLocation)
+  location: PostLocation;
+}

src/posts/posts.controller.ts

@@ -0,0 +1,34 @@
+import { Controller, Get, Post, Body, Patch, Param, Delete } from '@nestjs/common';
+import { PostsService } from './posts.service';
+import { CreatePostDto } from './dto/create-post.dto';
+import { UpdatePostDto } from './dto/update-post.dto';
+
+@Controller('posts')
+export class PostsController {
+  constructor(private readonly postsService: PostsService) {}
+
+  @Post()
+  create(@Body() createPostDto: CreatePostDto) {
+    return this.postsService.create(createPostDto);
+  }
+
+  @Get()
+  findAll() {
+    return this.postsService.findAll();
+  }
+
+  @Get(':id')
+  findOne(@Param('id') id: string) {
+    return this.postsService.findOne(+id);
+  }
+
+  @Patch(':id')
+  update(@Param('id') id: string, @Body() updatePostDto: UpdatePostDto) {
+    return this.postsService.update(+id, updatePostDto);
+  }
+
+  @Delete(':id')
+  remove(@Param('id') id: string) {
+    return this.postsService.remove(+id);
+  }
+}

src/posts/posts.module.ts

@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+import { PostsService } from './posts.service';
+import { PostsController } from './posts.controller';
+
+@Module({
+  controllers: [PostsController],
+  providers: [PostsService],
+})
+export class PostsModule {}

src/posts/posts.service.ts

@@ -0,0 +1,26 @@
+import { Injectable } from '@nestjs/common';
+import { CreatePostDto } from './dto/create-post.dto';
+import { UpdatePostDto } from './dto/update-post.dto';
+
+@Injectable()
+export class PostsService {
+  create(createPostDto: CreatePostDto) {
+    return 'This action adds a new post';
+  }
+
+  findAll() {
+    return `This action returns all posts`;
+  }
+
+  findOne(id: number) {
+    return `This action returns a #${id} post`;
+  }
+
+  update(id: number, updatePostDto: UpdatePostDto) {
+    return `This action updates a #${id} post`;
+  }
+
+  remove(id: number) {
+    return `This action removes a #${id} post`;
+  }
+}

src/users/entities/user.entity.ts

@@ -1,10 +1,17 @@
-import { Entity, PrimaryKey, Property, Unique } from '@mikro-orm/core';
+import {
+  Collection,
+  Entity,
+  ManyToMany,
+  OneToMany,
+  Property,
+  Unique,
+} from '@mikro-orm/core';
+import { BaseEntity } from 'src/common/entities/base.entity';
+import { PostComment } from 'src/posts/entities/post-comment.entity';
+import { Post } from 'src/posts/entities/post.entity';
 
 @Entity()
-export class User {
-  @PrimaryKey()
-  id: number;
-
+export class User extends BaseEntity {
   @Property()
   @Unique()
   username: string;
@@ -14,4 +21,13 @@ export class User {
 
   @Property({ nullable: true })
   imageUrl?: string;
+
+  @OneToMany({ entity: () => Post, mappedBy: 'author' })
+  posts = new Collection<Post>(this);
+
+  @ManyToMany({ entity: () => Post, mappedBy: 'likedBy' })
+  likedPosts = new Collection<Post>(this);
+
+  @OneToMany({ entity: () => PostComment, mappedBy: 'author' })
+  comments = new Collection<PostComment>(this);
 }