class AccessCodeUser extend DataObject {
   static $db - array(
                'Name' => 'Text',
                'Email' => 'Text',
                'ProductName' => 'Text'
                );
   
   static $has_one = array(
      'AccessCodePage' => 'AccessCodePage',      
   );
   
   public function getCMSFields_forPopup()
   {
      return new FieldSet (
                      new TextField('Name'),
                      new EmailField('Email'),
                      new TextField('ProductName')
                      );
   }
}

class AccessCodePage extends Page {
   public static $db = array(
                      'LifestyleText' => 'HTMLVarchar(255)',
                      'AccessCode' => 'Text'
                      );
   
   public static $has_many = array (
                      'ExtraPageImages' => 'ExtraPageImages',
                      'AccessCodeUsers' => 'AccessCodeUser'
   );
   
   function getCMSFields() {
      $f = parent::getCMSFields();
      
      $f->removeFieldFromTab('Root.Content.Main', 'LifestyleText');
      $f->addFieldToTab("Root.Content.AccessCode", new TextField("AccessCode","Access Code"));
      $f->addFieldToTab("Root.Content.AccessCode", new DataObjectManager(
                                                       $this,
                                                       'AccessCodeUsers',
                                                       'AccessCodeUser',
                                                       array('Name' => 'Name','Email'=>'Email','ProductName' => 'ProductName'),
                                                       'getCMSFields_forPopup'
                                                       ));
      
      
      return $f;
      
   }
   
}