Spine file upload

gistfile1.coffee

  	@form.ajaxForm
			dataType:  'json'
			beforeSend: =>
				# ui treatement

			uploadProgress: (event, position, total, percentComplete) =>
				# progress ui

			complete: (xhr) =>
				# fetch model based on id
				attr = JSON.parse xhr.responseText
				App.Layer.url = "/layers/#{attr.id}"
				App.Layer.one "refresh", (data) =>
					App.Layer.url = "/layers"
				App.Layer.fetch()