gistfile1.builder

@contact = Contact.find params[:id]
@contact.attributes = params[:contact]

if params[:is_supplier] == '1'
  @contact.type = 'supplier'
elsif params[:is_supplier] == '0'
  @contact.type = 'customer'
end

if @contact.save
  redirect_to contact_path(@contact), :notice => 'Successfully updated Contact.'
else
  render :action => 'edit'
end