图像的字段不会以活动管理员形式显示 [英] fields for images don't displays in active admin form

问题描述

宝石 formtastic，〜> 2.1.1
宝石 activeadmin，〜> 0.4.2
宝石回形针

gem "formtastic", "~> 2.1.1" gem "activeadmin", "~> 0.4.2" gem "paperclip"

字段未以活动管理表单app / views / admin / products / _form.html.erb显示，但是
在app / views / products / _form.html.erb中的相同表单有效在产品视图中正确显示

fields for photos don't displays in active admin form app/views/admin/products/_form.html.erb ,but the same form in app/views/products/_form.html.erb works correctly in product's views


ActiveAdmin.register产品操作

形式：partial => 表单

结尾

    <%= semantic_form_for  [:admin , @product ], :html => { :multipart => true } do |f| %>
    <%= f.semantic_errors :name , :price , :description, :category_id %>

    <%= f.inputs :new_product do%>
        <%= f.input :name %>
        <%= f.input :price %>
        <%= f.input :description %>
        <%= f.input :category_id , :as => :select , :collection => Hash[Category.all.map{|c| [c.name, c.id]}] %>
    <% end %>    

  <%= f.inputs "Product images" do %>
     <%= f.fields_for :prod_images do |p| %>

         <%= p.input :photo, :as => :file, :label => "Image",:hint => p.template.image_tag(p.object.photo.url(:thumb)) %>

         <%= p.input :_destroy, :as=>:boolean, :required => false, :label => 'Remove image' ,:hint => p.object.new_record? ? p.template.image_tag(p.object.photo.url(:thumb)) : p.template.image_tag(p.object.photo.url(:thumb)) %>

     <%end%> 
  <% end %>      

  <%= f.actions do %>
     <%= f.action :submit , :as => :button %>
  <% end %>

<% end %>

推荐答案

我找到了解决方案。

如果要在active_admin中使用回形针，则无法渲染外部表单，因为它无法使用has_many关联。
我的解决方案：

If you want to use paperclip with active_admin you can't render outer form, becouse it's not able to use has_many association in it. My solution:

ActiveAdmin.register Product do
  form :html => { :multipart=>true } do |f|
    f.inputs :new_product  do
      f.input :name
      f.input :price
      f.input :category
      f.input :description

      f.has_many :prod_images  do |p|
        p.input :photo, :as => :file, :label => "Image",:hint => p.template.image_tag(p.object.photo.url(:thumb)) 
        p.input :_destroy, :as=>:boolean, :required => false, :label => 'Remove image'
      end
    end

    f.buttons  
  end
end

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