repository.deleteById() doesn't work with MongoDB?

[gtamas]

Hi

I'm using MongoDB datasource (the latest)

When I try to call myRepository.deleteById('someObjectId'), it's unable the find the record.
My repo looks like this:

export class UserRepository extends SoftCrudRepository<
  User,
  typeof User.prototype._id,
  UserRelations
  > {
  constructor(
    @inject('datasources.mongo') dataSource: MongoDataSource,
  ) {
    super(User, dataSource);
  }

...
}

This is a SoftCrudRepository, but I also tried with DefaultCrudRepository and I'm getting the same result.

My User model has an "_id" field which looks like this:

@property({
    type: 'string',
    id: true,
    generated: true,
  })
  _id: string;

Should this be called "id"? Or why doesn't this work?

[gtamas]

Anybody please?

The all id based methods seem to be having the same issue. I can't find, delete or update by id. EntityNotFound exception is thrown.
I can locate records by any other property, but the id!

I'm sure it's some config problem, but I can't see what's wrong.

[dougal83]

Should this be called "id"? Or why doesn't this work?

With reference to the mongodb connector docs, try using 'id' as '_id' is reserved.

[gtamas]

Yeah, I just figured this out too, but thanks for the info!
I know now that this is actually mentioned in the loopback docs and it's not only Mongo related. You have to call it "id", otherwise the CRUD operations won't work.

But if that's the case, then maybe the docs should updated to make this info easy to find. I mean it's there, but it's a tip, it doesn't really stand out.

Anyway, thanks again! Now it works.

One more thing:

To make it work with Mongo, I had to add this to my model:

 @property({
    type: 'string',
    id: true,
    mongodb: {dataType: 'ObjectId'}
  })
  id: string;

I added the mongodb prop.