Add mixins (extends) feature to work with @nestjs/mapped-types and @nestjs/swagger

[ouwais-chaoui]

Is there an existing issue for this?

• I have searched the existing issues

Describe the issue

Hello folks,

I want to create a DTO class that keeps the @Swagger() and @AutoMap() annotations.

import { DictionaryEntryDto } from './dictionary-entry.dto';
import { MapperPickType } from '@automapper/classes/mapped-types';

export class CreateDictionaryEntryDto extends MapperPickType(
  DictionaryEntryDto,
  ['definition', 'name'],
) {}

The problem is that the swagger annotations are not taken ...

If I use the PickType of swagger, I loose the @AutoMap() metadata ...

I found an issue that was closed but never got resolved : #271

Is there a solution for that ?

Models/DTOs/VMs

Parent class :

import { ApiProperty } from '@nestjs/swagger';
import { IsString, MaxLength, MinLength } from 'class-validator';
import { DictionaryDto } from 'src/dictionary/dto/dictionary.dto';
import { DictionaryEntry } from '../entities/dictionary-entry.entity';
import { AutoMap } from '@automapper/classes';

export class DictionaryEntryDto implements DictionaryEntry {
  @AutoMap()
  @ApiProperty({
    example: '64f52fdb-7621-454f-a35e-524ee2ab3466',
    type: 'string',
    format: 'uuid',
  })
  @IsString()
  id: string;

  @AutoMap()
  @ApiProperty({
    example: 'test',
  })
  @IsString()
  @MaxLength(28)
  @MinLength(3)
  name: string;

  @AutoMap()
  @ApiProperty({
    example: 'test',
  })
  @IsString()
  definition: string;

  dictionary: DictionaryDto;
}

Subclass DTO :

import { DictionaryEntryDto } from './dictionary-entry.dto';
import { MapperPickType } from '@automapper/classes/mapped-types';

export class CreateDictionaryEntryDto extends MapperPickType(
  DictionaryEntryDto,
  ['definition', 'name'],
) {}

Mapping configuration

No response

Steps to reproduce

No response

Expected behavior

To keep both @AutoMap() and @ApiProperty() metadata

Screenshots

No response

Minimum reproduction code

No response

Package

• I don't know.
• @automapper/core
• @automapper/classes
• @automapper/nestjs
• @automapper/pojos
• @automapper/mikro
• @automapper/sequelize
• Other (see below)

Other package and its version

No response

AutoMapper version

8.0.0

Additional context

No response

[ouwais-chaoui]

@micalevisk @nartc Hello folks !

Could you please help me with this problem ? I know you had already the same issue #271

Do you have any work around or did I miss something ?

Thank you in advance guys your library is gold !

[devskar]

We also would need an update for this issue

[ouwais-chaoui]

Any updates on this ticket guys ?