Ember.js: Upload file component

Question

I need to create an Ember component to select a file. My page will include multiple "upload component"

I have read a post trying to implement that: (https://stackoverflow.com/questions/9200000/file-upload-with-ember-data) BUT the UploadFileView is directly linked to the controller. I would like to have something more generic...

I would like to remove the App.StoreCardController.set('logoFile'..) dependency from the view or pass the field (logoFile) from the template...

Any idea to improve this code ?

   App.UploadFileView = Ember.TextField.extend({
    type: 'file',
    attributeBindings: ['name'],
    change: function(evt) {
      var self = this;
      var input = evt.target;
      if (input.files && input.files[0]) {
        App.StoreCardController.set('logoFile', input.files[0]);
      }
    }
});

and the template:

{{view App.UploadFileView name="icon_image"}}
{{view App.UploadFileView name="logo_image"}}

Answer 1

I completed a full blown example to show this in action

https://github.com/toranb/ember-file-upload

Here is the basic handlebars template

<script type="text/x-handlebars" data-template-name="person">
{{view PersonApp.UploadFileView name="logo" contentBinding="content"}}
{{view PersonApp.UploadFileView name="other" contentBinding="content"}}
<a {{action submitFileUpload content target="parentView"}}>Save</a>
</script>

Here is the custom file view object

PersonApp.UploadFileView = Ember.TextField.extend({
    type: 'file',
    attributeBindings: ['name'],
    change: function(evt) {
      var self = this;
      var input = evt.target;
      if (input.files && input.files[0]) {
        var reader = new FileReader();
        var that = this;
        reader.onload = function(e) {
          var fileToUpload = reader.result;
          self.get('controller').set(self.get('name'), fileToUpload);
        }
        reader.readAsDataURL(input.files[0]);
      }
    }
});

Here is the controller

PersonApp.PersonController = Ember.ObjectController.extend({
  content: null,
  logo: null,
  other: null
});

And finally here is the view w/ submit event

PersonApp.PersonView = Ember.View.extend({
  templateName: 'person',
  submitFileUpload: function(event) {
    event.preventDefault();
    var person = PersonApp.Person.createRecord({ username: 'heyo', attachment: this.get('controller').get('logo'), other: this.get('controller').get('other') });
    this.get('controller.target').get('store').commit();
  }
});

This will drop 2 files on the file system if you spin up the django app