news story titles in urls

[eluser]adrian westlake[/eluser]
Great, so I do something like the following (pseudocode)?

Code:

$urltitle = url_title($title)
$title = $this->uri->segment(3);
$q = $this->db->getwhere('blog', array('urltitle' => $title));
if($this->db->num_rows()==0){
   //insert record into database with $urltitle as the title field
}
else{
   //insert record into database with $urltitle appended with a unique number
   $urltitle = $urltitle."_".($this->db->num_rows()+1);
}