From fe964eddf26585b550ba7a523201d05372dcae62 Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sesse@samfundet.no>
Date: Sat, 5 Mar 2005 01:47:10 +0000
Subject: [PATCH] When there's only one group, insert it with ID 0, not ID 1,
 so the rest of the scripts understand it's special.

---
 html/do-start-round.pl | 53 ++++++++++++++++++++++++++++--------------
 1 file changed, 36 insertions(+), 17 deletions(-)

diff --git a/html/do-start-round.pl b/html/do-start-round.pl
index 00d94ff..f7a86ce 100755
--- a/html/do-start-round.pl
+++ b/html/do-start-round.pl
@@ -19,9 +19,14 @@ $dbh->{AutoCommit} = 0;
 $dbh->do('INSERT INTO rounds (tournament, round, randomsongs, chosensongs, numqualifying) VALUES (?, ?, ?, ?, ?)',
 	undef, $tournament, $round, $num_random, $num_chosen, $num_qual);
 
-for my $i (1..$num_groups) {
+if ($num_groups == 1) {
 	$dbh->do('INSERT INTO groups (tournament, round, parallel) VALUES (?, ?, ?)',
-		undef, $tournament, $round, $i);
+		undef, $tournament, $round, 0);
+} else {
+	for my $i (1..$num_groups) {
+		$dbh->do('INSERT INTO groups (tournament, round, parallel) VALUES (?, ?, ?)',
+			undef, $tournament, $round, $i);
+	}
 }
 
 # Seed people into groups (quite preliminary for now)
@@ -61,24 +66,36 @@ if ($round == 1) {
 	}
 }
 
-# Zigzag people to get the most fair groups possible
-my $group = 1;
-my $direction = 1;
-my $position = 1;
-for my $p (@$people) {
-	$dbh->do('INSERT INTO roundparticipation (tournament, round, parallel, player, position) VALUES (?, ?, ?, ?, ?)', undef,
-		$tournament, $round, $group, $p->{'player'}, $position);
-
-	if ($group + $direction < 1 || $group + $direction > $num_groups) {
-		$direction = -$direction;
+if ($num_groups == 1) {
+	# Everybody's in the same group
+	my $position = 1;
+	for my $p (@$people) {
+		$dbh->do('INSERT INTO roundparticipation (tournament, round, parallel, player, position) VALUES (?, ?, ?, ?, ?)', undef,
+			$tournament, $round, 0, $p->{'player'}, $position);
 		$position++;
-	} else {
-		$group += $direction;
+	}
+} else {
+	# Zigzag people to get the most fair groups possible
+	my $group = 1;
+	my $direction = 1;
+	my $position = 1;
+	for my $p (@$people) {
+		$dbh->do('INSERT INTO roundparticipation (tournament, round, parallel, player, position) VALUES (?, ?, ?, ?, ?)', undef,
+				$tournament, $round, $group, $p->{'player'}, $position);
+
+		if ($group + $direction < 1 || $group + $direction > $num_groups) {
+			$direction = -$direction;
+			$position++;
+		} else {
+			$group += $direction;
+		}
 	}
 }
 
 # Pick random songs for the groups
 for my $g (1..$num_groups) {
+	my $gg = ($num_groups == 1) ? 0 : $g;
+
 	for my $s (1..$num_random) {
 		my $ref = $dbh->selectrow_hashref('SELECT * FROM machinesongs WHERE song NOT IN ( SELECT song FROM randomsongsused ) AND machine=( SELECT machine FROM tournaments WHERE tournament=? ) ORDER BY random() LIMIT 1',
 			undef, $tournament);
@@ -88,18 +105,20 @@ for my $g (1..$num_groups) {
 		$dbh->do('INSERT INTO randomsongsused (song) VALUES (?)',
 			undef, $ref->{'song'});
 		$dbh->do('INSERT INTO roundrandomsongs (tournament, round, parallel, song) VALUES (?,?,?,?)',
-			undef, $tournament, $round, $g, $ref->{'song'});
+			undef, $tournament, $round, $gg, $ref->{'song'});
 
 		$dbh->do('INSERT INTO scores SELECT tournament,round,parallel,player,?,?,\'single\',\'expert\',\'f\',NULL FROM roundparticipation WHERE tournament=? AND round=? AND parallel=?', undef,
-			$s, $ref->{'song'}, $tournament, $round, $g);
+			$s, $ref->{'song'}, $tournament, $round, $gg);
 	}
 }
 
 # Add empty "score" records for the chosen songs.
 for my $g (1..$num_groups) {
+	my $gg = ($num_groups == 1) ? 0 : $g;
+
 	for my $s (1..$num_chosen) {
 		$dbh->do('INSERT INTO scores SELECT tournament,round,parallel,player,?,NULL,\'single\',\'expert\',\'t\',NULL FROM roundparticipation WHERE tournament=? AND round=? AND parallel=?', undef,
-			$s + $num_random, $tournament, $round, $g);
+			$s + $num_random, $tournament, $round, $gg);
 	}
 }
 
-- 
2.39.2