protected function _serialize_csv($data)
{
$csv = null;
if (is_array($data)) {
$csv = array();
foreach ($data as $dk => $dv) {
if (!is_array($dv)) {
$dv = array($dv);
}
$csv[] = Sourcemap_Csv::make_csv_row($dv);
}
$csv = implode("\n", $csv);
} else {
throw new Exception('CSV serialization requires array.');
}
return $csv;
}
