ruby-on-rails-3 - railscarrierwave上传图片或图片url错误

Question

我已经安装了carrierwave gem。我的模型是

class Rating < ActiveRecord::Base
  attr_accessible :pic_url, :rating

  mount_uploader :pic_url , ImageUploader
end

我的看法是

<%= form_for @rating, :html => {:multipart=>true} do |f| %>

    <div class="field">
       <%= f.file_field :pic_url %>
    </div>

    <div class="field">
      <%= f.label :remote_pic_url_url, 'or image url' %>
      <br/>
      <%= f.text_field :remote_pic_url_url %>
    </div>

    <div class="actions">
      <%= f.submit 'Upload Picture', :class => 'btn btn-primary' %>
    </div>
<% end %>

Can't mass-assign protected attributes: remote_pic_url_url 当我删除可选的图片 url 字段时，我收到一条错误消息，然后它可以工作。

Answer 1

只需添加remote_file_url到attr_accessible.