Troubles with reciprocal reference fields in the models about typegoose

[WillsonHaw]

The workaround I've been using is to use an object with a name property as the class name as the ref/itemsRef:

class Chapter extends Typegoose {
    @prop({ ref: { name: 'Series' } }) public series: Ref<Series>;
}

class Series extends Typegoose {
    @arrayProp({ itemsRef: { name: 'Chapter' } }) public chapters: Ref<Chapter[]>;
}

Seems to work so far for me, but probably not something that'll work long term.

[pgsfredda]

Hi @WillsonHaw ,

I tested your solution: it works perfectly with 'populate' method.

I think this is not a workaround. This is using the metadata.

Thank you!

[szokodiakos]

Hello. Yes I believe at this time, circular schema definitions are not supported, haven't tested it myself though but judging by your example that is the case.

I will keep an eye on this when developing Typegoose (also all PRs are appreciated).

[pgsfredda]

EDIT: 10/oct/2017:
Maybe I found the solution but I'm still testing that.
I'm using Angular forwardRef function.
It seems it works.

import { prop, staticMethod, instanceMethod, Typegoose, ModelType, InstanceType, Ref } from 'typegoose';

import { forwardRef } from 'forwardref'
import { User } from './user.model';

export class AdminName {
    @prop() first: string;
    @prop() last: string;
};

export class Admin extends Typegoose {
    @prop() name?: AdminName;
    @prop({ ref: forwardRef(() => User) }) user?: Ref<User>;
}

export const AdminModel = new Admin().getModelForClass(Admin);

[pgsfredda]

Great! Thank you.
It transpilles. ;-)

Why do you think this solution is not good in the long term?
The 'name' property for the 'ref' field works for the mongoose 'populate' method?

[WillsonHaw]

If that metadata changes, then it can be an issue. Not likely, but just keep that in mind. Glad it worked out for you though!

[hasezoey]

@Ben305 this can be closed as "not an issue with typegoose" - limitation of javascript

if someone has this error, please look at https://typegoose.github.io/typegoose/guides/advanced/reference-other-classes/