Setting default radio button on edit
So I'm trying to setup scaffolding to use radio buttons for the format button.  It definitely works to add a new and edit.  The problem is when I go to edit an entry the correct radio button isn't selected by default.
      <p>
    <%= f.label :format %><br />
	<%= f.radio_button :format, "black & white" %>
	<%= label :format_bw, "Black & White" %>
	<%= f.radio_button :format, "color" %>
	<%= label :format_color, "Color" %>
     </p>


Setting default radio button on edit
===

So I'm trying to setup scaffolding to use radio buttons for the format button.  It definitely works to add a new and edit.  The problem is when I go to edit an entry the correct radio button isn't selected by default.
      <p>
    <%= f.label :format %><br />
	<%= f.radio_button :format, "black & white" %>
	<%= label :format_bw, "Black & White" %>
	<%= f.radio_button :format, "color" %>
	<%= label :format_color, "Color" %>
     </p>

