Cannot match against 'undefined' or 'null in JsonApiView with Relationships

[Eusse]

Hi, i have an User model that has many Contact.

This is my JsonApiViews/User.js file

const JsonApiView = require('adonis-jsonapi/src/JsonApiView')
class User extends JsonApiView {
  get attributes() {
    return ['first-name', 'last-name', 'email'];
  }
  contacts() {
    return this.hasMany('App/Http/JsonApiViews/Contact');
  }
}
module.exports = User

This is my JsonApiViews/Contact.js file

const JsonApiView = require('adonis-jsonapi/src/JsonApiView')
class Contact extends JsonApiView {
  get attributes() {
    return ['first-name', 'last-name', 'email', 'phone'];
  }
  user() {
    return this.belongsTo('App/Http/JsonApiViews/User');
  }
}
module.exports = Contact

In my ContactCotroller.js in the index method i have this:

* index (request, response) {
    const contacts = yield Contact.all()
    response.jsonApi('Contact', contacts)
  }

And i'm getting this error:

{
  "error": {
    "type": "TypeError",
    "message": "Cannot match against 'undefined' or 'null'.",
    "file": "node_modules/adonis-jsonapi/src/JsonApiView.js",
    "line": 5
  }
}

I started getting that when i configured the relationship. When they were not related, everything worked fine. What i am missing?

[rtablada]

This is likely because of the breaking change with the way that relation options work. This has now been updated in the docs.

Change your relation to:

return this.hasMany('App/Http/JsonApiViews/Contact', {
  included: true,
  excludeRelation: 'user'
});

And similar for your other relation

[Eusse]

This is my new setup for JsonApiViews/User.js

const JsonApiView = require('adonis-jsonapi/src/JsonApiView')
class User extends JsonApiView {
  get attributes() {
    return ['first-name', 'last-name', 'email'];
  }
  contacts() {
    return this.hasMany('App/Http/JsonApiViews/Contact', {
      included: true,
      excludeRelation: 'user'
    });
  }
}
module.exports = User

for my JsonApiViews/Contact.js

const JsonApiView = require('adonis-jsonapi/src/JsonApiView')
class Contact extends JsonApiView {
  get attributes() {
    return ['first-name', 'last-name', 'email', 'phone'];
  }
  user() {
    return this.belongsTo('App/Http/JsonApiViews/User', {
      included: true,
      excludeRelation: 'contact'
    });
  }
}
module.exports = Contact

and finally, the index method in ContactController.js

* index (request, response) {
    const user = yield User.find(1)
    const contacts = yield user.contacts().fetch()
    response.jsonApi('Contact', contacts)
  }

I no longer get the error, but the relationship is not the response either, it looks like this

{
    "data": [
        {
            "type": "contacts",
            "id": "4",
            "attributes": {
                "first-name": "Test",
                "last-name": "dude1",
                "email": "test.dude1@test.com",
                "phone": "1234567890"
            }
        },
        {
            "type": "contacts",
            "id": "5",
            "attributes": {
                "first-name": "Another test",
                "last-name": "dude2",
                "email": "test.dude2@example.com",
                "phone": "12345689"
            }
        }
    ]
}

What else am i missing? I'm currently on version 0.5.3