ruby-on-rails-3 – 为特定模型自定义rails_admin删除操作

经过一段时间的黑客攻击后,我终于找到了一种方法：重写RailsAdmin的默认删除操作.

这是我添加自己的自定义代码后的删除操作(不是删除,而是使用自定义通知标记删除,如果用户已标记为删除,则隐藏删除按钮). ：

# config/initializers/rails_admin_delete_override.rb
module RailsAdmin
  module Config
    module Actions
      class Delete < RailsAdmin::Config::Actions::Base

        RailsAdmin::Config::Actions.register(self)

        register_instance_option :member do
          true
        end

        register_instance_option :route_fragment do
          'delete'
        end

        register_instance_option :http_methods do
          [:get,:delete]
        end

        register_instance_option :authorization_key do
          :destroy
        end

        register_instance_option :visible? do
          bindings[:object].class.base_class.name != 'User' || !bindings[:object].to_destroy?
        end

        register_instance_option :controller do
          Proc.new do
            if request.get? # DELETE

              respond_to do |format|
                format.html { render @action.template_name }
                format.js   { render @action.template_name,:layout => false }
              end

            elsif request.delete? # DESTROY

              redirect_path = nil
              @auditing_adapter && @auditing_adapter.delete_object(@object,@abstract_model,_current_user)
              if @object.class.base_class.name == 'User'
                @object.to_destroy!
                flash[:success] = t("admin.flash.user_destroy_successful",:name => @model_config.label)
                redirect_path = index_path
              else
                if @object.destroy
                  flash[:success] = t("admin.flash.successful",:name => @model_config.label,:action => t("admin.actions.delete.done"))
                  redirect_path = index_path
                else
                  flash[:error] = t("admin.flash.error",:action => t("admin.actions.delete.done"))
                  redirect_path = back_or_index
                end
              end

              redirect_to redirect_path

            end
          end
        end

        register_instance_option :link_icon do
          'icon-remove'
        end
      end
    end
  end
end

您可以在此处找到原始操作代码：https://github.com/sferik/rails_admin/blob/master/lib/rails_admin/config/actions/delete.rb