ruby on rails 3 - simple_form radio button (need to add <span> tag inside of <label> -

what best way create following html using simple_form_for gem?

<label>    <input name="form-field-radio" type="radio" />    **<span class="lbl"> radio option 2</span>** </label> 

note default when create radio buttons using following statements, above not created. how can add tag in?

<%= f.input :state, :collection => project::states, :as => :radio_buttons %> 

i had similar need (to embed <span> within <label>). isn't cleanest solution did work , think tweaking ability have input , span embedded within label. following modification results in:

<label>name:    <span class="hint">this hint...</span> </label> 

i added following initializer (using rails 4 , simple_form 3) override label_text method:

# initializers/simple_form_custom.rb module simpleform   module components     module labels        def label_text         if hint           hint_text = %[<span class="hint">#{hint}</span>]         else           hint_text = ""         end         simpleform.label_text.call(raw_label_text, required_label_text, hint_text).strip.html_safe       end      end   end end 

then in initializers/simple_form.rb have:

config.label_text = lambda { |label, required, hint| "#{label}: #{required} #{hint}" }