plupload - mongodb - carrierwave

asset.rb

class Asset
  include Mongoid::Document
  include Mongoid::Timestamps

  field :name
  field :type
  field :extension
  field :uploaded_by

  mount_uploader :file, AssetUploader
end

create.rb

def create
  @image = Asset.new(:name => params[:name])
  @image.file = params[:file]
  @image.save!
  render :nothing => true
end

javascript_include.html.erb

<%= javascript_include_tag "path to your javascript dir/plupload.full.min.js" %>

script_tag.html

<script type="text/javascript">
  $(function(){
    var uploader = new plupload.Uploader({
    runtimes : "gears,silverlight,flash,html5",
    browse_button : 'pickfiles',
    container : "upcontainer",
    max_file_size : '10mb',
    url : "/admin/assets",
    flash_swf_url: "/javascripts/plupload.flash.swf",
    silverlight_xap_url: "/javascripts/plupload.silverlight.xap",
    multipart: true,
    multipart_params: {
     "authenticity_token" : '<%= form_authenticity_token %>'
    }
   });
   
   uploader.bind('Init', function(up, params) {
        $('#filelist').html("<div>Current runtime: " + params.runtime + "</div>");
   });
   
   uploader.bind('FilesAdded', function(up, files) {
     $.each(files, function(i, file) {
            $('#filelist').append(
                '<div id="' + file.id + '">' +
                'File: ' + file.name + ' (' + plupload.formatSize(file.size) + ') <b></b>' +'</div>'
            );
        });
    });
   
    uploader.bind('UploadProgress', function(up, file) {
        $('#' + file.id + " b").html(file.percent + "%");
    });
   
    $('#uploadfiles').click(function(e) {
        uploader.start();
        e.preventDefault();
    });
   
    uploader.init();
  });
</script>