public function getSummary()
 {
     $txt = '';
     if ($this->venueHistoryModel->getIsNew()) {
         $txt .= 'New! ' . "\n";
     }
     if ($this->venueHistoryModel->isAnyChangeFlagsUnknown()) {
         $txt .= $this->venueHistoryModel->getDescription();
     } else {
         if ($this->venueHistoryModel->getTitleChanged()) {
             $txt .= 'Title Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getDescriptionChanged()) {
             $txt .= 'Description Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getAddressChanged()) {
             $txt .= 'Address Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getAddressCodeChanged()) {
             $txt .= 'Address Code Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getLatChanged() || $this->venueHistoryModel->getLngChanged()) {
             $txt .= 'Position on Map Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getAreaIdChanged()) {
             $txt .= 'Area Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getCountryIdChanged()) {
             $txt .= 'Country Changed. ' . "\n";
         }
         if ($this->venueHistoryModel->getIsDeletedChanged()) {
             $txt .= 'Deleted Changed: ' . ($this->venueHistoryModel->getIsDeleted() ? "Deleted" : "Restored") . "\n\n";
         }
     }
     return $txt;
 }