Ember.js view for object

2
votes

I have simple view in my Ember.js application, like this. Each "content" element consists of two objects, first and second:

{{#each App.myController.content}}
    {{view for content.first}}
    {{view for content.second}}
{{/each}}

I'd like to define view for each content separately (so as not to have to write it twice), in another handlebars template script. How can I pass the first and second variables to the view?

Here is a code sample, see http://jsfiddle.net/Zm4Xg/5/:

Handlebars:

<script type="text/x-handlebars" data-template-name="contact-view">
     <div>{{name}}</div>
     <img {{bindAttr src="avatar"}} {{bindAttr alt="name"}}>
</script>

<script type="text/x-handlebars">
  {{#each App.contactsController.pair}}
    <div class="menu_vertical_group">
      {{#with this.first}}
         {{view App.contactView}}
      {{/with}}

      {{#with this.second}}
         {{view App.contactView}}
      {{/with}}

    </div>
  {{/each}}
</script>

​JavaScript:

App = Ember.Application.create();

App.Contact = Em.Object.extend({
    name: null,
    avatar: null
});

App.contactView = Ember.View.extend({
    templateName: 'contact-view'
});

App.contactsController = Em.ArrayController.create({
    content: [],
    initData: function(data) {
        var contacts = data.map(function(contact) {
            return App.Contact.create({
                "name": contact.name,
                "avatar": contact.avatar
            });
        });
        this.pushObjects(contacts);
    },

    pair: (function() {
        content = this.get('content');
        var result = [];
        for (ii = 0; ii < content.length; ii += 2) {
            result.pushObject({
                "first": content[ii],
                "second": content[ii + 1] ? content[ii + 1] : null
            });
        }
        return result;
    }).property('content')
});

App.contactsController.initData([{
    "name": "John Doe",
    "avatar": "/john.jpg"},
{
    "name": "Someone Else",
    "avatar": "/else.jpg"}]);​
2
templatesviewember.jshandlebars.js
Does it have something to see with this question: stackoverflow.com/q/8526070/90741 ? – Mike Aski
Can you give a more detailed example? Maybe a JSFiddle? – pangratz
Unfortunately, I didn't manage to run it. I hope you get the idea: jsfiddle.net/Zm4Xg/5 – Pavel S.
Ahh, whoops, I probably shouldn't have put pseudo-code inside curly-braces. – Bradley Priest

2 Answers

5
votes

Something like this?

{{#each App.myController.content}}
    {{view MyView contentBinding="content.first"}}
    {{view MyView contentBinding="content.second"}}
{{/each}}
2
votes

You can extend the View class with a templateName function that evaluates to a different view based on a property of the model, like this:

App.customView = Ember.View.extend({
    templateName:function(){     
          if(this.get('content').get('index') === 1){
            return 'view1';
          }
          else{
            return 'view2';                               
          }
    }.property('content.index') // custom template function based on 'index' property
});

Check out this fiddle: http://jsfiddle.net/lifeinafolder/7hnc9/