/**
* Generate a SURN,GIVN and GIVN,SURN sortable name for an individual.
* This allows table data to sort by surname or given names.
*
* Use AAAA as a separator (instead of ","), as Javascript localeCompare()
* ignores punctuation and "ANN,ROACH" would sort after "ANNE,ROACH",
* instead of before it.
*
* @param Individual $individual
*
* @return string[]
*/
private static function sortableNames(Individual $individual)
{
$names = $individual->getAllNames();
$primary = $individual->getPrimaryName();
list($surn, $givn) = explode(',', $names[$primary]['sort']);
$givn = str_replace('@P.N.', 'AAAA', $givn);
$surn = str_replace('@N.N.', 'AAAA', $surn);
return array($surn . 'AAAA' . $givn, $givn . 'AAAA' . $surn);
}