private static function insert(&$set)
{
\Core\DB::$db->beginTransaction();
$PK = \Core\DB::nextPK(static::table(), static::PK());
$SQL = 'INSERT INTO ' . static::table() . ' ';
$columns = [static::PK()];
$params = [':' . static::PK() => $PK];
foreach ($set as $col => $val) {
$columns[] = $col;
$params[':' . $col] = $val;
}
$SQL .= '(' . implode(',', $columns) . ') ' . 'VALUES (' . implode(',', array_keys($params)) . ')';
$sInsert = \Core\DB::$db->prepare($SQL);
if (!$sInsert->execute($params)) {
http_response_code(500) && exit('Failed to create object :/');
}
$sInsert->closeCursor();
\Core\DB::$db->commit();
return $PK;
}