Feature Request:

[eluser]Michael Wales[/eluser]
How does this differ from:

Code:

$result = $this->db->query($query);
$inserted_id = $this->db->insert_id();

db->insert_id() merely calls PHP's mysql_insert_id() function (assuming you are running MySQL). That function returns FALSE if no connection was present, 0 if the previous query did not generate an AUTO_INCREMENT ID (the functionality you recommend), or the ID of the row if all was successful.