protected function _updateExisting()
{
if ($this->purpose_id != $this->_initial['purpose_id']) {
$this->purpose = TripPurpose::getValueById($this->purpose_id);
}
if ($this->country_id != $this->_initial['country_id']) {
$this->country = Country::getValueById($this->country_id);
}
if ($this->with_id != $this->_initial['with_id']) {
$this->with = TripWith::getValueById($this->with_id);
}
if ($this->companion_id != $this->_initial['companion_id']) {
$this->companion = TripCompanion::getValueById($this->companion_id);
}
if ($this->end_at < $this->start_at) {
$t = $this->end_at;
$this->end_at = $this->start_at;
$this->start_at = $t;
}
}
