How to pass parameters with the action Helper of Ember.js?

Question

I have a list of items:

  <ul>
    {{#each applications}}
      <li>
        <a {{bindAttr href="url"}} 
        {{action "appClicked" on="click"}}>                
           {{name}}
        </a>
      </li>
    {{/each}}
  </ul>

On click it calls the method appClicked of the view, that this template belongs to. I want to pass some information (for example, the name of the application) to the method appClicked. Something like, {{action "appClicked(name)" on="click"}}.

Is it possible, and how?

Answer 1

Apparently, Ember has evolved now and there is an ability to pass a parameter to an action:

{{action "functionName" parameter}}

In your case, that would be:

<a {{bindAttr href="url"}} 
   {{action "appClicked" name on='click'}}>                
       {{name}}
   </a>

However, you could pass any attribute from the model (like the id) instead of the name.

See http://emberjs.com/guides/templates/actions/ for more information.

Answer 2

The API says you can pass in multiple parameters.

html and handlebars:

{{officename}} 
<button {{action "actionTest" "hello" "goodbye" officename}}>See parameters through action in the console</button>

controller:

actionTest: function(a, b, c){
   console.log(a);
   console.log(b);
   console.log(c);
},

See it in action in this jsbin