Create science fair conferences for all past years that the system knows about

Also add a temporary year field to the conferences table, to make migration easier (easier to find a conference id for a given science fair year)

db/db.code.version.txt

@@ -1 +1 @@
-187
+188

db/db.update.188.php

@@ -0,0 +1,24 @@
+<?
+function db_update_188_pre() 
+{
+}
+
+function db_update_188_post()
+{
+	global $config;
+	$q=mysql_query("SELECT * FROM config WHERE var='fairname' AND year>0 ORDER BY year");
+	while($r=mysql_fetch_object($q)) {
+		echo "  Creating conference: $r->val $r->year\n";
+		mysql_query("INSERT INTO conferences (`name`,`type`,`status`,`year`) VALUES ('".mysql_real_escape_string($r->val." ".$r->year)."',
+			'sciencefair',
+			'ended',
+			'$r->year')");
+	}
+	//but wait, the current fairyear is still running
+	echo "   Setting science fair conference for {$config['FAIRYEAR']} to running\n";
+	mysql_query("UPDATE conferences SET status='running' WHERE year='{$config['FAIRYEAR']}'");
+
+
+}
+
+?>

db/db.update.188.sql

@@ -0,0 +1,2 @@
+ALTER TABLE `conferences` ADD `year` INT NULL DEFAULT NULL COMMENT 'used for migration only, this field will be dropped!';
+