class EditableYesNoField extends EditableMultipleOptionField {
   
   static $singular_name = 'Yes/No Field';
   
   static $plural_name = 'Yes/No Fields';
   

   function getFormField() {
      $optionSet = $this->Options();
      $options = array('yes' => 'Yes', 'no' => 'No');
      
      /*if($optionSet) {
         foreach( $optionSet as $option ) {
            $options[$option->Title] = $option->Title;
         }   
      }*/
      
      return new OptionsetField($this->Name, $this->Title, $options);
   }
}