app/views/rails_admin/main/edit.html.haml

edit.html.haml

/ オリジナル：https://github.com/sferik/rails_admin/blob/master/app/views/rails_admin/main/edit.html.haml
= rails_admin_form_for @object, url: edit_path(@abstract_model, @object.id), as: @abstract_model.param_key, html: { method: "put", multipart: true, class: "form-horizontal denser", data: { title: @page_name } } do |form|
    / ↓ 挿入部分 ↓
    - if @model_name == "Brand" or @model_name == "Item"
        %table.table{:class => "table-striped　table-bordered"}
            %caption 画像の表示順編集
            %tr
                %th ID
                - if @model_name == "Product"
                    %th Name
                %th Order
                - @order_objects.each do |order_object|
                    %tr
                        %td= order_object.id
                        - if @model_name == "Product"
                            %td= order_object.name
                        %td
                            %input{:name => "products[][order]", :type => "number", :value => order_object.order}/
                            %input{:name => "products[][id]", :type => "hidden", :value => order_object.id}/
　　/ ↑ 挿入部分 ↑
    = form.generate action: :update