emberSync doesn't save to firebase (via EmberFire)

[codepreneur]

So fetching data from firebase works perfectly (with this.emberSync.find('user', '9nj32')), but trying to save to firebase (via EmberFire) doesn't work and the worst part it doesn't throw any errors.

For example:

export default Ember.Route.extend({
    model: function () {
        return this.emberSync.find('user', '2oj9m').then(function(record){
              return user = record;
    });
    },
    actions: {
        save: function () {
            // this.modelFor('index').save();
            // debugger;
            // user.get('name')
            user.save();
            // return user.emberSync.save();
        }
    }
});

with a template:

{{input value=name}}
<button {{action "save"}}>Save</button>

Any ideas? How would you save to firebase?

P.S. I am also using ember localForage adapter

[kurko]

I think your code is wrong.

export default Ember.Route.extend({
  model: function () {
    return this.emberSync.find('user', '2oj9m');
  },

  actions: {
    save: function () {
      // do something cool
      this.get('content').emberSync.save();
    }
  }
});

You need to read Ember.js' guide about what this.get('content') is. I'm closing this, if you have other problems, let us know.

[codepreneur]

If after loading application I do this in the console:

var route = Ember.Namespace.NAMESPACES_BY_ID[''].__container__.lookup('route:index');

I get:

Class {routeName: "index", _names: Array[0], context: Class, currentModel: Class, controller: Class…}

then, when I type this:

var user = route.emberSync.createRecord('user', {name:'kurko'})

I get this:

Class {id: "8tp85", store: Class, container: Container, _changesToSync: Object, _deferredTriggers: Array[0]…}

and then when I type this:

user.emberSync.save()

I get this:

Class {__ember1412872464239: null, __nextSuper: undefined, __ember_meta__: Object, constructor: function, _super: function…}

Then I go to my firebase dashboard and I see that nothing has been added...

However, this: route.emberSync.find('user', '2oj9m') works fine and returns a promise

https://github.com/codepreneur/embersync-localforage-example

[csprocket777]

@codepreneur did you find a solution to this? I'm running into a similar issue myself.

[kurko]

@codepreneur @csprocket777 I really don't have a way to debug this, but I'll be helping you with whatever I can. Can you perhaps put some debugger; here and there and see what's going on?

Basically, if your Firebase adapter is similar to RESTAdapter/LSAdapter or any Ember compatible adapter, it'll be called according to that interface and it should work. If it works for RESTAdapter and not for Firebase, there's a possibility that your Firebase adapter is broken somehow because nothing is done on EmberSync side, except calling these adapters.

I've been using with ember-json-api (online) and ember-local-storage-adapter (offline) and it works fine.

[csprocket777]

For the record, here are my versions:

Ember: 1.9.1
Ember-Data: 1.0.0-beta.14
Handlebars: 2.0.0
jQuery: 2.1.3

I'm using the default REST adapter and the LocalStorage Ember-CLI add-on (kurko)

So I've been diving into the code to see if I can pin point where my issue is.

So far I've narrowed it down to a failing promise in ember-sync.js,
at this line: https://github.com/kurko/ember-sync/blob/master/dist/ember-sync.js#L448

The console error states:

undefined is not a function

Which is caused by a failure to generate relations, from the function "_this.generateRelationForRecord(type, relation);" here:
https://github.com/kurko/ember-sync/blob/master/dist/ember-sync.js#L655

(sorry for the rambling nature, I'm tracing my way through the code)

HERE'S THE CULPRIT
At: https://github.com/kurko/ember-sync/blob/master/dist/ember-sync.js#L678
There is a "record.serialize" call, except that in my case, the record is a promise that hasn't been resolved. This is where it fails for me.

I see there is a comment on line 638 to "implement for when .get(relation) returns a Promise". That time might be now. 😉

In fact, removing the relationships from my model allows the online sync to occur. I'm wondering if there was a change in ember-data to ensure that ALL relationships returned promises by default (maybe they always did and I'm thinking wrong).

Further clarification, I have my "belongsTo" relationship set to async. Removing the async attribute allows the online sync to work as well. It boils down to the need to handle async relationships.

[kurko]

@csprocket777 you rock, sir!

Do you think you can code a PR to implement this? I'll do it myself but I can't guarantee when.

[csprocket777]

Ugh, I'm not sure how to approach implementing a solution. I'm not sure where to implement a promise to solve for this without breaking the whole thing. I'll play around and see if I can solve for this.

(I know this is alpha and I'm breaking the "don't use it in production yet" rule, but I'm doing it anyways because this solves a huge issue for me right now, and I'm under the gun)

[kurko]

@csprocket777 under the gun? 😱 🔫

You can hit me up at #emberjs channel on Freenode if you need. If you can at least write a failing spec in a PR, I'll try to make a patch tonight.

[kurko]

@csprocket777 from our conversation on IRC, here's a gist with what I think should be done: https://gist.github.com/kurko/7ca3b17fa6b7590b93a1