问如何使用载波异步上传视频

EN

<%= form_tag user_new_drag_drop_photo_path, method: :post, class: "dropzone form-horizontal", id: "media-dropzone", :authenticity_token => true do %>
  <div class="fallback">
    <%= file_field_tag "photo", multiple: true %>
  </div>
<% end %>

function create_dropzone(thumbnailUrls){
  Dropzone.autoDiscover = false;
  var mediaDropzone;
  mediaDropzone = new Dropzone("#media-dropzone", {
    addRemoveLinks: true,

    success: function(file, response) {
              $(file.previewTemplate).find('.dz-remove').attr('id', response.id);
              $(file.previewElement).addClass("dz-success");
            },

    removedfile: function(file){
                  var id = $(file.previewTemplate).find('.dz-remove').attr('id');
                  var parent = $(file.previewTemplate).find('.dz-remove').parent();
                  parent.remove();
                 // The above will remove the file preview but you can send a AJAX request to delete it from server
            },

    init: function () {
                // This callback be used to do some task on dropzone intialize
    }
  });