通过ng-file-upload和paperclip上传文件

Question

我花了很多时间使用ng-file-upload和rails paperclip并卡住了（（。在标准视图中使用new.html.erb paperclip工作得很完美。但是使用ng-file-upload浏览器会返回错误。

Internal Server Error

bad content body

或者如果我在控制器中更改上传：

afisha: {file: file} => to file: {file: file}

路由错误：

Routing Error
No route matches [POST] "/public"

这是我的控制器：

$scope.upload = function (file) {
           console.log(file);
            Upload.upload({
                url: 'http://localhost:3000/public',
                method: 'POST',
                afisha: {file: file}
            }).then(function (resp) {
                console.log('Success ' + resp.config.data.file.name + 'uploaded. Response: ' + resp.data);
            }, function (resp) {
                console.log('Error status: ' + resp.status);
            }, function (evt) {
                var progressPercentage = parseInt(100.0 * evt.loaded / evt.total);
                console.log('progress: ' + progressPercentage + '% ' + evt.config.data.file.name);
            });
        };

查看：

<button class="btn" ngf-select="upload($file)">Upload on file select</button>

Rails控制器：

class EventsController < ApplicationController

  respond_to :json
  before_filter :authenticate_user!

    def index
    respond_with Event.all
  end
  def show
    respond_with Event.find(params[:id])
  end
  def create
    @event = Event.create(event_params)
    @guests = guests_params[:guests].map { |guest|
      Guest.create(name: guest[:name], surname: guest[:surname], event: @event)
    }
    respond_with @event
  end

  def destroy
    @event = Event.find(params[:id])
    @event.destroy

  end

  def authenticate_user!
    if user_signed_in?
      super
    else
      redirect_to login_path
    end
  end

  private
  def event_params
    params.require(:event).permit(:name, :description, :date, :afisha)
  end
  def guests_params
    params.permit(guests: [:name, :surname])
  end
end

模型：

class Event < ActiveRecord::Base

  has_attached_file :afisha, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png"
  validates_attachment_content_type :afisha, content_type: /\Aimage\/.*\z/

  has_many :guests

  def as_json(options={})
    super(options.merge(include: :guests))
        .merge(:afisha => afisha.url)
  end

end