/**
* Gets a trimmed string element of the record data array.
* If the array has not been initialized properly, an empty string is
* returned instead. If we are a date record, it'll be retrieved from the
* corresponding topic record.
*
* @param string $key the name of the field to retrieve
*
* @return string the corresponding element from the record data array
*/
private function getTopicString($key)
{
$result = '';
if ($this->isTopicOkay()) {
$result = $this->topic->getRecordPropertyString($key);
} else {
$result = $this->getRecordPropertyString($key);
}
return $result;
}
