How to enable query-params-new feature using ember-rails

Question

I am having trouble using the query-params-new feature.

My version of ember is 1.4.0-beta.2.

Ember.js is loaded into my rails app through the ember-rails and ember-source gems.

Before initializing the Ember App I turn on the feature like so.

Ember.FEATURES["query-params-new"] = true

After doing so I get the following error when navigating to any route.

Error while loading route: TypeError: Object [object Object] has no method 'paramsFor' at Ember.Route.Ember.Object.extend.deserialize

Am I missing something? Do I need to define a paramsFor method at each route?

Runthral · Accepted Answer · 2014-01-14T23:53:22.100

7

I'm having the same problem, I noticed this issue mentioning the problem, and attributes it to misusing the new query params API. Where you using the prior implementation?

Edit: My problem was how I was enabling it. I was following the prior method of simply passing a value to Ember.FEATURES:

Ember.FEATURES['query-params-new'] = true;

However, the docs now specify the correct method (which also needs to happen before the Ember js file is loaded by the browser):

ENV = {FEATURES: {'query-params-new': true}};

edited Jan 14 '14 at 23:53

answered Jan 14 '14 at 22:57

Runthral

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Not using the prior implementation just trying to turn it on. – Aaron Renoir Jan 14 '14 at 23:13
I have a feeling it is a problem with ember-rails and only loading some of the code based on load order? – Aaron Renoir Jan 14 '14 at 23:14
Ok I posted an answer of my hacked solution. – Aaron Renoir Jan 15 '14 at 01:18
hi its now working for me can you plese help http://stackoverflow.com/a/21964405/433271 – Rigel Feb 23 '14 at 05:02
I don't see how this can work at all. Isn't ember-source going to serve the precompiled ember.js? – aceofspades Apr 30 '14 at 06:04

Aaron Renoir · Answer 2 · 2014-02-20T05:48:56.307

3

I forgot coffee-script wraps everything in a top-level function.

Here is the way I do it in coffee-script.

#= require_self
#= require handlebars
#= require ember

@ENV = {FEATURES: {'query-params-new': true}}

edited Feb 20 '14 at 05:48

answered Jan 15 '14 at 01:16

Aaron Renoir

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Glad its working. The code from the guide works for me with ember-rails as long as that ENV.FEATURES variable gets set before the Ember code loads. The error is because as soon as the code gets read into memory by the browser, an anonymous function adds paramsFor to Ember.Route if the flag exists. I just setup a separate js file with the feature code above ember in application.js – Runthral Jan 15 '14 at 01:47
If I just set ENV.FEATURES then Ember.FEATURES.isEnabled("query-params-new") returns undefined. I must be missing something because having to define Ember so that I can configure it before I load Ember seems wrong. Oh well, It works for now. – Aaron Renoir Jan 15 '14 at 02:03

How to enable query-params-new feature using ember-rails

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