/**
* @param integer $from
* @return null
*/
public function setFrom($from)
{
if (!isset($this->loadedFields['from'])) {
$this->loadProperties();
}
$oldValue = null;
if (array_key_exists('from', $this->loadedValues)) {
$oldValue = $this->loadedValues['from'];
}
if ($oldValue === $from) {
$this->from = $from;
return;
}
return parent::setFrom($from);
}
