I have some models set up with async relationships, eg:
User = DS.Model({
postsApproved: DS.hasMany('post', {async: true, inverse: 'approved'})
})
Post = DS.Model({
approver: DS.belongsTo('user', {async: true, inverse: 'postsApproved'})
})
In a controller, I have a property on the post, isApproved
, which simply checks if approver
is set. I expect that this should work:
isApproved: function() {
return !Ember.isNone(this.get('approver'));
}
But that always returns true, and if I inspect the data I see that it is because this.get('approver')
returns a promise. This works:
isApproved: function() {
return !Ember.isNone(this.get('approver.content'));
}
But using content
seems to me to be messing around with the internals a bit too much. Is this the right way to do it, or am I missing something?
You are right, testing for this.get('approver.content')
is not correct, as the element may actually have an associated approver
, but it may not be loaded yet.
Try to load the related model on the route:
// route.js
model: function(params) {
return this.store.find('post', params.post_id).then(function(post) {
return Ember.RSVP.hash({
post: post,
approver: post.get('approver')
});
});
},
setupController: function(controller, model) {
controller.set('model', model.post);
controller.set('approver', model.approver);
},
// controller.js
isApproved: function() {
return !Ember.isNone(this.get('approver'));
}.property('approver')
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.