gistfile1.rb

# View

<% form_for :spec do |form| %>
  <fieldset>
    <legend><span><%= future_i18t("What's your current marital status?") %></span></legend>                        
    <div class="form-input">      
      <%= error_messages_for'spec' %> 
      <div class="radio_button_row"> 
        <%= radio_button :spec, :p2_marital_status, 'p2_marital_single_never_married',  :onclick =>"toggleOtherExplain;" %> 
        <%= future_i18t('Single, Never Married') %>      <br />
        <%= radio_button :spec, :p2_marital_status, 'p2_marital_married',  :onclick => "toggleOtherExplain();"%>
        <%= future_i18t('Married') %>                    <br /> 
        <%= radio_button :spec, :p2_marital_status, 'p2_marital_divorced',  :onclick => "toggleOtherExplain();" %>
        <%= future_i18t('Divorced') %>                   <br /> 
        <%= radio_button :spec, :p2_marital_status, 'p2_marital_widowed',  :onclick => "toggleOtherExplain();"%>
        <%= future_i18t('Widowed') %>                    <br /> 
        <%= radio_button :spec, :p2_marital_status, 'p2_marital_annulled',  :onclick => "toggleOtherExplain();"%>
        <%= future_i18t('Married Annulled or other') %> <br />      
      </div>            

     <div id="sub_question" style="display:none">
       <%= text_field_for form, :p2_marital_others,   "Explain" %>
     </div>
    </div>
      <%= submit_tag 'Continue', :class => "submit" %> 
  </fieldset>
<% end %>    

<script language="JavaScript" type="text/javascript">
  function toggleOtherExplain() {
    if ($('spec_p2_marital_status_p2_marital_annulled').checked) {      
      Element.show('sub_question');
      Field.focus('spec_p2_marital_others');
    } else {
      Element.hide('sub_question');
      Field.clear('spec_p2_marital_others');
    }
  }
    toggleOtherExplain();   
</script>


# Controller

  def marital_status
    @last_action      = 'marital_status'   
    @percent_complete = 40        
    @title = "Information About Your Marital Status"
    @ind = "times_married"  
    @spec.marital_status = true  
    if param_posted?(:spec) 
      if params[:spec][:p2_marital_status] == 'p2_marital_single_never_married'    
        @ind = 'children_count'                       
      end 
      if params[:spec][:p2_marital_status] == 'p2_marital_annulled'  
        @spec.marital_status_others = true
      end
     validate_and_update_form
    end
  end

# Helper

  def validate_and_update_form 
    params[:spec][:last_action] = @last_action
    params[:spec][:last_controller] = @last_controller
    if @user.spec.update_attributes(params[:spec])
      redirect_to :controller => @con, :action => @ind 
    end    
  end

  # wraps in div tags and formates "form.text_field", require the parameter for field
  # field is the actually name of the field
  # has an optional parameter of field_english, eg. if the field name is "p1_pr_fist_name", field_english should be name  ¬
  # "first_name".
  # if you didn't specify size, size will be taken from HTML_TEXT_FIELD_SIZE located in enviroment.rb
  # if you didn't specify size, size will be taken from DB_STRING_MAX_LENGTH located in enviroment.rb
  # field and field_english used together is for using humanize;
  def text_field_for(form, field, field_human='', 
                     size=HTML_TEXT_FIELD_SIZE, 
                     maxlength=DB_STRING_MAX_LENGTH) 
                           
    # field_human is used to check to see if it is not blank and then translates it on the label                   
    if field_human.blank?                 
      label = content_tag("label", "#{ h field.humanize}: ", :for => field)  
    elsif field_human == 'leave empty' 
      label = ''
    else
      label = content_tag("label", "#{future_i18t( h field_human)}: ", :for => field) 
    end   
#    # added a a star to required fields    
#    if not_required.blank?  
#      star = content_tag("em", "<img src=\"#{image_path('required_star.gif')}\" alt=\"required\"/>") 
#    else
#      star =''
#    end
       
    form_field = form.text_field field, :size => size, :maxlength => maxlength
    content_tag("div", "#{label} #{h form_field}", :class => "form_row")      
   # content_tag("li", "#{label} #{form_field}")
  end
  def future_i18t(abc)
    @abd=abc
  end