通过accepts_nested_attributes_for更新模型时,会忽略其他非Paperclip属性

时间:2011-09-29 13:53:13

标签: ruby-on-rails paperclip nested-attributes fields-for

我有一个模型,“更新”,其中包含“资产”。资产具有has_attached_file:资产,使用Paperclip。

我可以通过更新表单(使用fields_for)成功创建多个资源,但在编辑更新时,我无法更新资产上名为“sort_order”的其他非Paperclip属性。发布了新值,但该对象似乎没有更新。

模型/ asset.rb

...
belongs_to :update
...

模型/ update.rb

has_many :assets, :dependent => :destroy
...
accepts_nested_attributes_for :assets, :allow_destroy => true

我没有在任何一个模型上使用attr_accessible

视图/更新/ _form.html.erb

<ul class="existing-images">
    <%= f.fields_for :assets do |a| %>
        <% unless a.object.new_record? %>
            <li>
                <%= link_to image_tag(a.object.asset.url(:small)), a.object.asset.url(:original) %>

                <%= a.check_box :_destroy %>
                <%= a.label :_destroy %>

                <%= a.text_field :sort_order %>
                <%= a.label :sort_order %>
            </li>
        <% end %>
    <% end %>
    </ul>

在上面的a.text_field :sort_order字段中,系统会显示资产的默认排序顺序,但无法更新。

根据日志发送输入此字段的新值:

  Parameters: {"utf8"=>"✓", "authenticity_token"=>"2IUei4WR7fRpsM0TKD3Yk8u5FlYv2FDszzjJc3y4eG8=", "update"=>{"year"=>"2011", "week"=>"39", "title"=>"A new piece of work", "content"=>"", "assets_attributes"=>{"3"=>{"_destroy"=>"0", "sort_order"=>"1", "id"=>"1"}, "4"=>{"_destroy"=>"0", **"sort_order"=>"20"**, "id"=>"2"}}, "video_url"=>"", "quote"=>"", "allow_reactions"=>"1", "is_published"=>"1", "allow_public_feed"=>"0"}, "id"=>"1"}
  User Load (0.2ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
  Update Load (0.2ms)  SELECT "updates".* FROM "updates" WHERE "updates"."id" = ? LIMIT 1  [["id", "1"]]
  Asset Load (0.4ms)  SELECT "assets".* FROM "assets" WHERE "assets"."update_id" = 1 AND "assets"."id" IN (1, 2) ORDER BY assets.sort_order
   (0.1ms)  SELECT 1 FROM "updates" WHERE ("updates"."update_type_id" = 1 AND "updates"."id" != 1 AND "updates"."year" = 2011 AND "updates"."week" = 39 AND "updates"."user_id" = 1) LIMIT 1
  Update Load (0.1ms)  SELECT "updates".* FROM "updates" WHERE "updates"."id" = 1 LIMIT 1
[paperclip] Saving attachments.

(“sort_order”=&gt;“20”是新值)但该值未保存。

尽管_destroy复选框按预期工作,但这也是如此。

希望有足够的信息;如果有人能提供帮助,我会非常感激!!

1 个答案:

答案 0 :(得分:1)

我认为你必须在资产模型中使用attr_accessible:

attr_accessible :sort_order

这应该可以解决你的问题。