use classTransformer only for input

[jselesan]

Hi there. A time ago, I had to disable classTransformer (in useExpressServer) because it didn't work fine with mongoose models, but now, I would like to take advantage of classTransformer to transform the query params to an object, so it would be nice to have the ability to enable classTransformer only for the input and keep it disabled for output. Is it posible?

[pleerock]

no I don't think its possible right now. What problem do you have with mongooose models? Maybe @Exclude can help you in your mongoose models?

[ruiming]

It would be nice to have a option to disable transform on response.
Return a sequelize instance or mongoose instance both throw error.

I now doing this to disable transform on response:

import { KoaDriver } from 'routing-controllers/driver/koa/KoaDriver'

const originHandleSuccess = KoaDriver.prototype.handleSuccess
KoaDriver.prototype.handleSuccess = function () {
  this.useClassTransformer = false
  return originHandleSuccess.apply(this, arguments)
}

[pleerock]

thats why you should use typeorm instead of sequelize or mongoose 😝 . But seriously it should be easily fixed if you do something like this in your models:

@Exclude()
_id: string;

@Expose()
get id() {
    return this._id.toString(); // or some other method that normalizes that id
}

[MichalLytek]

Closing as a duplicate in favor of #226.
Please subscribe there to be notified when the required changes land.

[nathanosdev]

@ruiming Nice workaround, thanks!

@pleerock I really appreciate the work you've done with routing controllers so far, it's great! But I believe a library like this should be agnostic of any data mappers being used rather than being developed to suit only TypeORM.

[pleerock]

It does not "suit typeorm". class-transformer is generic serializer and does work with object. In mongodb you have complex MongoID object and it simply tries to serialize it as well. The issue with complexity of mongoid object, not with class-transformer.

[nathanosdev]

thats why you should use typeorm instead of sequelize or mongoose

I was referring to your comment, which implies you shouldn't be using anything other TypeOrm with routing-controllers.

[pleerock]

I didnt say that routing-controllers cannot be used with anything else except typeorm. It was simple advice and a bit of joke as you can see from "😝" smile I used.

[nathanosdev]

Okay that's my bad 😆 sorry for misunderstanding!

[pleerock]

BTW you should really try TypeORM 😝