Class DS.ManyArray

A ManyArray is a MutableArray that represents the contents of a has-many relationship.

The ManyArray is instantiated lazily the first time the relationship is requested.

Inverses

Often, the relationships in Ember Data applications will have an inverse. For example, imagine the following models are defined:

1
2
3
4
5

import DS from 'ember-data';

export default DS.Model.extend({
  comments: DS.hasMany('comment')
});

1
2
3
4
5

import DS from 'ember-data';

export default DS.Model.extend({
  post: DS.belongsTo('post')
});

If you created a new instance of App.Post and added a App.Comment record to its comments has-many relationship, you would expect the comment's post property to be set to the post that contained the has-many.

We call the record to which a relationship belongs the relationship's owner.

1
2
3
4
5
6
7
8
9
10
11
12
13

{
  "comments": [{
    "id": 1,
    "comment": "This is the first comment",
  }, {
// ...
  }],

  "meta": {
    "page": 1,
    "total": 5
  }
}

1
2
3
4
5
6

post.get('comments').then(function(comments) {
  var meta = comments.get('meta');

// meta.page => 1
// meta.total => 5
});