my problem is... during edit process radio button should be checked as default ..how can i do that ..pl help..
my edit .erb file
<% form_tag (:action => 'update', :id => @mobile )do%> <p><label for="book_title">Title</label>: <%= radio_button 'mobile', 'brand', 'yes' :checked => checked?( 'mobile', 'brand', 'yes' )%><%= radio_button 'mobile', 'brand', no' :checked => checked?( 'mobile', 'brand', 'no' )%></p>
<%= submit_tag "Save changes" %> <%end %>