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Ember JS: Remove record from hasMany relationship and update view

Asked By: Anonymous

I’m trying to delete a record from store and automatically update the view that lists the items, but so far I had no luck.

I tried tweet.deleteRecord() in the delete method of the controller but it seems it removes all “tweets” a user has, it doesn’t update the view and when trying to access the user tweets again I get an error.

What is the proper way to delete a record from the store, update any relationships the record might have and also update the view?

Bellow is part of my code:


App.Store = DS.Store.extend({
    revision: 11,
    adapter: 'DS.FixtureAdapter'

App.User = DS.Model.extend({
    screenName: DS.attr('string'),
    name: DS.attr('string'),
    profileImage: DS.attr('string'),
    url: DS.attr('string'),
    followersCount: DS.attr('number'),
    description: DS.attr('string'),
    tweetsCount: DS.attr('number'),
    friendsCount: DS.attr('number'),
    tweets: DS.hasMany('App.Tweet')

App.Tweet = DS.Model.extend({
    date: DS.attr('date'),
    text: DS.attr('string'),
    containsURL: DS.attr('boolean')


App.UserController = Ember.ObjectController.extend({
    delete: function(tweet) {
        // code to delete tweet both from
        // App.Tweet and App.User.Tweets relationship
        // and automagically update the view


<script type="text/x-handlebars" data-template-name="user">
    <h3>{{ }}</h3>
    {{#each tweet in tweets}}
            {{ tweet.text }}
            <a href="#" {{action "delete" tweet}}>Delete</a>


Answered By: Anonymous

You need to include a belongsTo relationship inside your App.Tweet model. For example,

App.Tweet = DS.Model.extend({
    date: DS.attr('date'),
    text: DS.attr('string'),
    containsURL: DS.attr('boolean'),
    user: DS.belongsTo('App.User'),

Now when you call tweet.deleteRecord(), the corresponding user model’s tweets relationship will also be updated. Here’s a jsfiddle.

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