public function getSummary()
{
$txt = '';
if ($this->eventHistoryModel->getIsNew()) {
$txt .= "New! \n";
}
if ($this->eventHistoryModel->isAnyChangeFlagsUnknown()) {
$txt .= $this->eventHistoryModel->getDescription();
} else {
if ($this->eventHistoryModel->getSummaryChanged()) {
$txt .= "Summary Changed. \n";
}
if ($this->eventHistoryModel->getDescriptionChanged()) {
$txt .= "Description Changed. \n";
}
if ($this->eventHistoryModel->getUrlChanged()) {
$txt .= "URL Changed. \n";
}
if ($this->eventHistoryModel->getStartAtChanged()) {
$txt .= "Start Changed. \n";
}
if ($this->eventHistoryModel->getEndAtChanged()) {
$txt .= "End Changed. \n";
}
if ($this->eventHistoryModel->getCountryIdChanged()) {
$txt .= "Country Changed.\n";
}
if ($this->eventHistoryModel->getTimezoneChanged()) {
$txt .= "Timezone Changed. \n";
}
if ($this->eventHistoryModel->getAreaIdChanged()) {
$txt .= "Area Changed. \n";
}
if ($this->eventHistoryModel->getVenueIdChanged()) {
$txt .= "Venue Changed. \n";
}
if ($this->eventHistoryModel->getIsVirtualChanged()) {
$txt .= "Is Virtual Changed. \n";
}
if ($this->eventHistoryModel->getIsPhysicalChanged()) {
$txt .= "Is Physical Changed.\n";
}
if ($this->eventHistoryModel->getIsDeletedChanged()) {
$txt .= 'Deleted Changed: ' . ($this->eventHistoryModel->getIsDeleted() ? "Deleted" : "Restored") . "\n";
}
if ($this->eventHistoryModel->getIsCancelledChanged()) {
$txt .= 'cancelled Changed: ' . ($this->eventHistoryModel->getIsCancelled() ? "Cancelled" : "Restored") . "\n";
}
}
return $txt;
}