CODEWITHSUNDEEP
htmlember.jshandlebars.js
lfitzgibbons
lfitzgibbons

Reputation: 833

Ember.js {{#each}} value in html tag?

So I am using Ember.js each helper and I am having trouble putting values where I want them.

Here is what I want my html to look like.

<div id="item0">
  item0Value
</div>

But I can't figure out how to write this in the handlebars template.

This is what I tried.

{{#each item in array}}
  <div id="item{{item.id}}">
    {{item.value}}
  </div>
{{/each}}

This gives me an error.

Uncaught Error: Assertion Failed: An error occured while setting up template bindings. Please check for invalid markup or bindings within HTML comments.

Is there a way to do what I want here? or is it not possible to put values inside the html tags?

Upvotes: 0

Views: 863

Answers (1)

Asgaroth
Asgaroth

Reputation: 4334

From ember/guides:

It is often useful to specify a controller to decorate individual items in the ArrayController while iterating over them. This can be done by creating an ObjectController:

You can use an item controller to generate the values you need, and then access them in your template:

{{#each item in array itemController="song"}}
  <div {{bind-attr="item.cssId"}}>
    {{item.value}}
  </div>
{{/each}}

// controllers/song
App.SongController = Ember.ObjectController.extend({
   cssId: function() {
     return 'item' + this.get('id');
   }.property('id')
...

Note: As best practice it is better to declare your itemController in the template, and not directly in your ArrayController

Upvotes: 1

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