Ember model reloading in interval

Question

I have a User model, which has latitude and longitude properties, which are used to show current user location on map.

App.User = DS.Model.extend({
    firstName: DS.attr('string'),
    lastName: DS.attr('string'),
    email: DS.attr('string'),
    jobs: DS.hasMany("App.Job"),
    latitude:   DS.attr('number'),
    longitude: DS.attr('number'),
    measuredAt: DS.attr('date'),
});

What is the best way to autoupdate latitude and longitude properties from server every given interval? Does ember-data support this kind of use case? I can't find any samples with this functionality. I think I will need to override find method for User class with setInterval in it, is this the right approach?

Thanks

lazzi · Answer 1 · 2015-07-30T10:39:53.200

EDIT: Please see Dmitri Zagidulin's answer.

So I figured it out. For now all I need was to override didLoad method on model, in future I will probably need more complex solution, but this is adequate for now.

didLoad: function(){
  var self = this;
  setInterval(function() {self.reload()}, 5*60*1000); //every 5 minutes
}

In case someone needs to reload more models, good solution would be to implement this as Mixin.

Dmitri Zagidulin · Accepted Answer · 2019-02-03T17:03:53.770

8

For those who are coming across this question now -- don't use setInterval, it's been shown to cause serious memory leaks.

Use Ember's own Ember.run.later instead.

See also:

Edit: Feb 3, 2019 - Update broken links.

edited Feb 03 '19 at 17:03

answered Jul 29 '15 at 21:44

Dmitri Zagidulin

1,097
9
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+1 for using the Ember run loop instead of a willy nilly setInterval. This should be voted up or at least incorporated into the chosen answer. – Tom Netzband Jul 30 '15 at 00:34
Thanks for the answer, I will accept this one as correct. – lazzi Jul 30 '15 at 10:39
voting up for bringing up [ember run loop](http://guides.emberjs.com/v2.0.0/applications/run-loop/). I believe that understanding run loop is the most empowering bit of learning a beginner can do – Dmitry Matveev Nov 11 '15 at 09:59
@DmitryMatveev all your links are 404 – aandis Feb 02 '19 at 16:29
@aandis - Thanks for the heads up, I updated the links. – Dmitri Zagidulin Feb 03 '19 at 17:04

score 5 · Answer 3 · edited May 23 '17 at 12:24

5

The model has a .reload() method now, which you could use in a setInterval callback. See https://stackoverflow.com/a/14183507/363073

P.S. Watch #545.

edited May 23 '17 at 12:24

Community

1
1

answered Mar 25 '13 at 18:16

dechov

1,833
1
15
18

I'm curios to know: where does `setInterval` come from? – Abdull Mar 26 '13 at 16:58

Ember model reloading in interval

3 Answers3

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