public function setup()
 {
     parent::setup();
     /* unset not needed fields */
     unset($this['is_active']);
     /* validate email adress */
     $this->changeToEmail('email');
     $this->validatorSchema['email']->setOption('required', false);
     /* set label for text field */
     $this->widgetSchema['text']->setLabel('Your message');
     /* text is required */
     $this->validatorSchema['text']->setOption('required', true)->setMessage('required', 'Please enter a message');
     /* add captcha if enabled */
     if ($this->isCaptchaEnabled()) {
         $this->addCaptcha();
     }
 }
 public function configure()
 {
     parent::configure();
 }