Active Admin Hackery

A few tips on customizing ActiveAdmin, the Ruby on Rails Admin Framework.

Customizing the Index Page:

If you have customized the index page, you might want to get back links to the object which was previously linked by the ID field. You can do that like this:

ActiveAdmin.register Post do

  index do

    selectable_column

    column :name do |post|

      link_to post.name, admin_post_path(post)

    end

    column :author

    #...

  end

end

Customizing the show page:

You can have tables for related models within a show page like this:

show do

  attributes_table do

    row :title

    #...

  end

  panel :comments do

    table_for post.comments do

      column :body

      #...

    end

  end

end

 Custom Column with links to multiple actions:

In a similar situation, you may want to add custom links to the earlier panel. You can do that in the following way:

column "Actions" do |comment|

  text_node link_to "View", admin_comment_path(comment)

  text_node " ".html_safe

  text_node link_to "Edit", edit_admin_comment_path(comment)

  text_node " ".html_safe

  text_node link_to "Delete", delete_comment_admin_page_path(page, :comment => content_item.id), :method => 'delete'

end