/**
* Check if a record has an empty value for this attribute.
*
* If the record only contains tags or spaces, we consider it empty. We exclude the div
* tag, since it is often used as (for instance) a placeholder for script results.
*
* @param array $record The record that holds this attribute's value.
*
* @return bool
*/
public function isEmpty($record)
{
$record[$this->fieldName()] = trim(strip_tags($record[$this->fieldName()], '<div>'));
return parent::isEmpty($record);
}
