<?
function db_update_209_pre() 
{
}

function db_update_209_post()
{
	// get the year => conference_id links
	$q1 = mysql_query("SELECT year, id FROM conferences WHERE year>0");
	$tables=array("projectdivisions","projectsubdivisions","projectcategories","projectcategoriesdivisions_link");

	//update the tables
	while($r = mysql_fetch_assoc($q1)){
		foreach($tables as $tableName){
			$query = "UPDATE `$tableName` SET `conferences_id` = {$r['id']} WHERE `year` = {$r['year']}";
			mysql_query($query);
			echo $query . ";\n";
		}
	}

}
?>