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rails-admin自定义行为

Posted on Edited on

参考：
http://dmitrypol.github.io/2015/09/10/rails-admin.html
http://fernandomarcelo.com/2012/05/rails-admin-creating-a-custom-action/

问题

  1. Rails: update_attribute vs update_attributes

代码实现

  1. lib/rails_admin_course_open.rb

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    require 'rails_admin/config/actions'
    require 'rails_admin/config/actions/base'
     
    module RailsAdminCourseOpen
    end
     
    module RailsAdmin
      module Config
        module Actions
          class CourseOpen < RailsAdmin::Config::Actions::Base
            # There are several options that you can set here. 
            # Check https://github.com/sferik/rails_admin/blob/master/lib/rails_admin/config/actions/base.rb for more info.
     
            register_instance_option :bulkable? do
              true
            end
     
            register_instance_option :controller do
              Proc.new do
                # Get all selected rows
                @objects = list_entries(@model_config, :destroy)
     
                # Update field open to true
                @objects.each do |object|
                    object.update_attribute(:open, true)
                end
     
                flash[:success] = "#{@model_config.label} successfully opend."
     
                redirect_to back_or_index
              end
            end
          end

          class CourseClose < RailsAdmin::Config::Actions::Base
            # There are several options that you can set here. 
            # Check https://github.com/sferik/rails_admin/blob/master/lib/rails_admin/config/actions/base.rb for more info.
     
            register_instance_option :bulkable? do
              true
            end
     
            register_instance_option :controller do
              Proc.new do
                # Get all selected rows
                @objects = list_entries(@model_config, :destroy)
                # Update field open to true
                @objects.each do |object|
                    object.update_attribute(:open, false)
                end
     
                flash[:success] = "#{@model_config.label} successfully closed."
     
                redirect_to back_or_index
              end
            end
          end


        end
      end
    end

  2. config/initializers/rails_admin.rb 注册

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    RailsAdmin.config do |config|
      # Register the class in lib/rails_admin_publish.rb
      module RailsAdmin
        module Config
          module Actions
            class CourseOpen < RailsAdmin::Config::Actions::Base
              RailsAdmin::Config::Actions.register(self)
            end
            class CourseClose < RailsAdmin::Config::Actions::Base
              RailsAdmin::Config::Actions.register(self)
            end
          end
        end
      end

      config.actions do
        # root actions
        dashboard                     # mandatory
        # collection actions
        index                         # mandatory
        new
        export
        history_index
        bulk_delete
        # member actions
        show
        edit
        delete
        history_show
        # show_in_app
        course_open do
          # Make it visible only for Course model. You can remove this if you don't need.
          visible do
            bindings[:abstract_model].model.to_s == "Course"
          end
        end
        course_close do
          # Make it visible only for Course model. You can remove this if you don't need.
          visible do
            bindings[:abstract_model].model.to_s == "Course"
          end
        end
      end
    end

  3. config/locales/zh-CN.yml

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    actions:
         course_open:
           menu: "开启选课"
           bulk_link: "开启选课%{model_label_plural}"
         course_close:
           menu: "关闭选课"
           bulk_link: "关闭选课%{model_label_plural}"