UserDisableForm::initData PHP Method

    function initData($args, $request)
    {
        if ($this->_userId) {
            $userDao = DAORegistry::getDAO('UserDAO');
            $user = $userDao->getById($this->_userId);
            if ($user) {
                $this->_data = array('disableReason' => $user->getDisabledReason());
            }
        }
    }

 /**
  * Edit enable/disable user form
  * @param $args array
  * @param $request PKPRequest
  * @return string Serialized JSON object
  */
 function editDisableUser($args, &$request)
 {
     // Identify the press
     $press =& $request->getPress();
     // Identify the user Id
     $userId = $request->getUserVar('rowId');
     if (!$userId) {
         $userId = $request->getUserVar('userId');
     }
     // Are we enabling or disabling this user
     $enable = isset($args['enable']) ? (bool) $args['enable'] : false;
     if ($userId !== null && !Validation::canAdminister($press->getId(), $userId)) {
         // We don't have administrative rights over this user.
         $json = new JSON('false', Locale::translate('grid.user.cannotAdminister'));
     } else {
         // Form handling
         import('controllers.grid.users.user.form.UserDisableForm');
         $userForm = new UserDisableForm($userId, $enable);
         $userForm->initData($args, $request);
         $json = new JSON('true', $userForm->display($args, $request));
     }
     return $json->getString();
 }