/**
* sets this record's temporal dates between a parent record's temporal dates (so that parent_eff <= my_eff < my_exp <= parent_exp)
* @param $record Doctrine_Record
* @return null
*/
public function setDatesWithinParent(Doctrine_Record $parent)
{
$child = $this->getInvoker();
if ($parent->getEffectiveDate() > $child->getEffectiveDate()) {
$child->{$this->_options['eff_date']} = $parent->getEffectiveDate();
}
if (!is_null($parent->getExpirationDate()) && (is_null($child->getExpirationDate()) || $parent->getExpirationDate() < $child->getExpirationDate())) {
$child->{$this->_options['exp_date']} = $parent->getExpirationDate();
}
// sanity check: if we end up with nonsense, then self-destruct.
if (!is_null($child->getExpirationDate()) && $child->getExpirationDate() <= $child->getEffectiveDate()) {
throw new Doctrine_Record_SavingNonsenseException("Nonsense child record with id {$child->id} should be deleted by parent");
}
}
