Active Admin

Active Admin gives complete control over the output of the form by creating a thin DSL on top of the fabulous DSL created by Formtastic (http://github.com/justinfrench/formtastic).

  ActiveAdmin.register Post do

    form do |f|
      f.inputs "Details" do
        f.input :title
        f.input :published_at, :label => "Publish Post At"
        f.input :category
      end
      f.inputs "Content" do
        f.input :body
      end
      f.buttons
    end

  end

Please view the documentation for Formtastic to see all the wonderful things you can do: http://github.com/justinfrench/formtastic

If you require a more custom form than can be provided through the DSL, you can pass a partial in to render the form yourself.

For example:

  ActiveAdmin.register Post do
    form :partial => "form"
  end

Then implement app/views/admin/posts/_form.html.erb:

  <%= semantic_form_for [:admin, @post] do |f| %>
    <%= f.inputs :title, :body %>
    <%= f.buttons :commit %>
  <% end %>