/**
* Check if the relation is empty.
*
* @param array $record The record to check
*
* @return bool true if a destination record is present. False if not.
*/
public function isEmpty($record)
{
if ($this->createDestination() && isset($record[$this->fieldName()][$this->m_destInstance->primaryKeyField()])) {
return empty($record[$this->fieldName()][$this->m_destInstance->primaryKeyField()]);
} else {
if ($this->createDestination() && isset($record[$this->fieldName()])) {
return empty($record[$this->fieldName()]);
}
}
return true;
// always empty if error.
}
