ember.js displaying list of items, each item with it's own view/controller

Question

What I want to achieve: create controller with view, and in this view I have list of \'Gallery\' objects. Each item has it\'s own view and controller.

All files are her

Answer 1

I think that I maybe should use {{collection}} helper, but there is no documentation for it on ember.js page (there is some in code, but I'm not sure if this helper is not a little bit outdated, as in source it says "// TODO: Don't require all of this module").

Agreed. Collection helper still works but I'm not certain it will be part of the public-api going forward. Best to stick with the {{#each}} helper if you can.

I tried to use itemController property, but then I still have template in one file.

The itemController property is a good start. that's the best way to give each item it's own controller.

Also tried to use {{render}} helper in {{#each}}, but then it throw error.

Yeah the {{render}} helper is not designed for use within an {{each}} block.

So, It is there a better/cleaner way to achieve what I want?

Yep. For starters use the itemController property. Then to give each it's own view, provide an itemViewClass option to the {{each helper}}. For example:

# in galleries_index.hbs
{{each controller itemViewClass="App.GalleriesIndexItemView"}

See the "blockless use" section of api docs for the each helper for detail.

Then customize App.GalleriesIndexItemView to specify a template:

App.GalleriesIndexItemView = Ember.View.extend({
    templateName: "galleries_index_item",
    tagName: 'li',
    classNames: ['span4'],
    hover: false,
    mouseEnter: function() {
        this.set('hover', true);
    },
    mouseLeave: function() {
        this.set('hover', false);
    }
});

and move html from the each helper to into the template:

# galleries_index_item.hbs
  

      
          
      
      

          
{{name}}
              
          {{#if view.hover}}
              Edit
              Delete
          {{/if}}
      
  

Now every item has it's own view and controller.