original_string: public function disable_fields() {
  
          $mform    =& $this->_form;
  
          $mform->disabledIf('lti_registrationurl', null);
          $mform->disabledIf('lti_capabilities', null);
          $mform->disabledIf('lti_services', null);
  
      }
code: public function disable_fields() {
  
          $mform    =& $this->_form;
  
          $mform->disabledIf('lti_registrationurl', null);
          $mform->disabledIf('lti_capabilities', null);
          $mform->disabledIf('lti_services', null);
  
      }
code_tokens: public function disable_fields ( ) { $ mform = & $ this -> _form ; $ mform -> disabledIf ( 'lti_registrationurl' , null ) ; $ mform -> disabledIf ( 'lti_capabilities' , null ) ; $ mform -> disabledIf ( 'lti_services' , null ) ; }
docstring: Set up rules for disabling fields.
docstring_tokens: Set up rules for disabling fields .