simple_form's collection_radio_button and custom label class

Question

I\'m trying to make a star rating form with radio collection using FontAwesome, for this I actually need to change the label classes of the collection_radio_button input gen

Answer 1

This can be achieved by using a block:

form_for @user do |f|
  f.collection_radio_buttons :rating, [[1, 'Bad'] ,[2, 'Ok'], [3, 'Great']],
                             :first, :last, { item_wrapper_tag: false } do |b|
    b.radio_button + b.label(:class => "collection_radio_buttons icon-star")
  end
end

This doc can showcase some other example: http://rubydoc.info/github/plataformatec/simple_form/SimpleForm/FormBuilder:collection_radio_buttons