Add delete account functionality (#2)

* Add delete account functionality

* Add delete constraint to category

---------

Co-authored-by: Florian Raith <florianraith00@gmail.com>

database/migrations/.snapshot-collab_space.json

@@ -177,6 +177,7 @@
             "id"
           ],
           "referencedTableName": "users",
+          "deleteRule": "cascade",
           "updateRule": "cascade"
         }
       }

database/migrations/Migration20230608100226.ts

+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20230608100226 extends Migration {
+
+  async up(): Promise<void> {
+    this.addSql('alter table `categories` drop foreign key `categories_owner_id_foreign`;');
+
+    this.addSql('alter table `categories` add constraint `categories_owner_id_foreign` foreign key (`owner_id`) references `users` (`id`) on update cascade on delete cascade;');
+  }
+
+  async down(): Promise<void> {
+    this.addSql('alter table `categories` drop foreign key `categories_owner_id_foreign`;');
+
+    this.addSql('alter table `categories` add constraint `categories_owner_id_foreign` foreign key (`owner_id`) references `users` (`id`) on update cascade;');
+  }
+
+}

src/auth/auth.controller.ts

@@ -5,6 +5,7 @@ import {
   HttpCode,
   HttpStatus,
   Post,
+  Delete,
   Res,
   UseGuards,
 } from '@nestjs/common';
@@ -59,4 +60,16 @@ export class AuthController {
 
     return { message: 'success' };
   }
+
+  @UseGuards(AuthGuard)
+  @Delete('delete')
+  public async delete(@Res({ passthrough: true }) response: Response) {
+    const user = await this.auth.user();
+    const id = user.id;
+
+    await this.auth.delete(id);
+    response.clearCookie('jwt');
+
+    return { message: 'success' };
+  }
 }

src/auth/auth.service.ts

@@ -34,6 +34,10 @@ export class AuthService {
     return this.createToken(user);
   }
 
+  public async delete(id: number): Promise<void> {
+    return await this.users.delete(id);
+  }
+
   private createToken(user: User): AuthPayload {
     const payload = { sub: user.id };
     const token = this.jwtService.sign(payload);

src/category/category.entity.ts

@@ -17,7 +17,7 @@ export class Category {
   @Property()
   name: string;
 
-  @ManyToOne({ hidden: true })
+  @ManyToOne({ hidden: true, onDelete: 'cascade' })
   owner: User;
 
   @OneToMany(() => Room, (room) => room.category)

src/user/user.service.ts

@@ -33,4 +33,7 @@ export class UserService {
 
     return user;
   }
+  public async delete(id: number): Promise<void> {
+    await this.repository.nativeDelete({ id });
+  }
 }