ruby-on-rails - 图像字段不显示在事件管理表单中

Question

gem “formtastic”，“~> 2.1.1” gem “activeadmin”，“〜> 0.4.2” gem “回形针”

照片字段不会显示在事件管理表单 app/views/admin/products/_form.html.erb 中，但是 app/views/products/_form.html.erb 中的相同表单在产品 View 中正常工作

> app/admin/products.erb

ActiveAdmin.register Product do<br/> form :partial => "form"<br/> end

app/views/admin/products/_form.html.erb

    <%= 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 %>

Answer 1

我找到了解决方案。

如果您想将回形针与 active_admin 一起使用，则无法呈现外部形式，因为它无法在其中使用 has_many 关联。 我的解决方案:

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