Carrierwave_Direct的direct_upload_form_for返回FileUploader:Class的未定义方法"model_name"

问题描述

我已经为此苦苦挣扎了两个小时.在我的视图中使用carrierwave_direct的direct_upload_form_for时，它返回此错误:

I've been struggling with this for a couple of hours now. When using carrierwave_direct's direct_upload_form_for in my view, it returns me this error:

FileUploader Carrierwave类别:

class FileUploader < CarrierWave::Uploader::Base
  include CarrierWaveDirect::Uploader
end

手册文件模型:

class ManualFile
  include Mongoid::Document
  mount_uploader :file, FileUploader

  field :name, :type => String
end

UploadController:

class UploadController < ApplicationController
    def manual_new
        @uploader = ManualFile.new.file
        @uploader.success_action_redirect = upload_edit_path
    end

    def manual_edit
        @myfile = ManualFile.new(key: params[:key])
    end
end

我的视图:

<%= direct_upload_form_for @uploader do |f| %>
  <%= f.file_field :file %>
  <%= f.submit %>
<% end %>

我不明白我在做什么错.我尝试遵循此 railscast .我使用的是Ruby 1.9.3，Rails 3.2.3，Mongoid 3，以及载有指向github master的载波的宝石.

I can't understand what I'm doing wrong. I tried to follow this railscast. I'm using Ruby 1.9.3, Rails 3.2.3, Mongoid 3 with carrierwave gems pointing to github master.

推荐答案

显然direct_upload_form_for与ActiveRecord一起使用效果最佳.为了使其与Mongoid一起使用(或至少不会崩溃)，我在文件上传器中添加了以下几行.

Apparently direct_upload_form_for works best with ActiveRecord. To make it work (or at least not crash) with Mongoid, I added the following lines to my file uploader.

include ActiveModel::Conversion
 extend ActiveModel::Naming

所以在您的情况下:

class FileUploader < CarrierWave::Uploader::Base
    include CarrierWaveDirect::Uploader

    include ActiveModel::Conversion
    extend ActiveModel::Naming
end

这篇关于Carrierwave_Direct的direct_upload_form_for返回FileUploader:Class的未定义方法"model_name"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！