event.context not set by {{action …}} when using {{#each …} (undefined)

问题

I'm trying out Ember.js for the first time by roughly following the Ember.js guide, but I'm running into the following problem.

Relevant code: https://gist.github.com/3257657 (for complete rails app, see: https://github.com/basveeling/ember-test)

Context: I'm running the latest ember-rails build with the 1.0 prerelease ember.js. I'm using ember-data for the post model.

Almost everything works in this app, except that the hrefs created by {{action showPost context="post" href=true}} have an undefined id (#/posts/undefined). Furthermore, the jQuery event passed to the showPost action doesn't have a context property (it does have a view property).

Am I going at this the wrong way, or have I perhaps stumbled on a bug in the prerelease?

edit: this might be related to Url contains 'undefined' instead of id after navigating back from 'edit' to 'show'

回答1:

Try change {{action showPost context="post" href=true}} to {{action showPost post href=true}}

The 1.0 prerelease has changed the action helper.

More info: https://github.com/emberjs/ember.js/commit/83b7a61a892e55423cf1e66f606b13435bcab8f0

来源：https://stackoverflow.com/questions/11808995/event-context-not-set-by-action-when-using-each-undefined