relationships.md

Relationships

The adapter supports hasMany and belongsTo. However, there are some optional configs that you can make use of to support your needs.

belongsTo

The optional configs are available by passing it as a param.

import Model, { attr, belongsTo } from '@ember-data/model';

export default class UserModel extends Model {
  @attr name;
  @belongsTo('country', { isRealtime: true }) country;
}

isRealtime

Indicates if the record will update in realtime

Type: boolean

buildReference

Hook for providing a custom collection reference.

Type: function

Params:

Name	Type	Description
db	Firestore
record	Object	The record itself

hasMany

The optional configs are available by passing it as a param.

import Model, { attr, hasMany } from '@ember-data/model';

import { query, where } from 'ember-cloud-firestore-adapter/firebase/firestore';

export default class GroupModel extends Model {
  @attr name;

  @hasMany('post', {
    isRealtime: true,

    filter(reference) {
      return query(reference, where('status', '==', 'approved'));
    }
  })
  approvedPosts;
}

If the document contains a field that matches your referenceKeyName, it'll fetch that one instead.

isRealtime

Indicates if the record will update in realtime after creating it

Type: boolean

buildReference

Hook for providing a custom collection reference.

Type: function

Params:

Name	Type	Description
db	Firestore
record	Object	The record itself

filter

Hook for providing the query for the collection reference

Type: function

Params:

Name	Type	Description
reference	CollectionReference	Will contain the return of buildReference when overriden. Otherwise, it will be provided by the adapter itself.
record	Object	The record itself

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