From d7fc5adc22c71261dd3f4544a3a5a1816b8d724e Mon Sep 17 00:00:00 2001
From: Michael Foster <savetheinternet@tinyboard.org>
Date: Thu, 29 Aug 2013 12:38:37 +1000
Subject: [PATCH] Performance: Use only one INSERT INTO (with multiple rows)
 for tracked cites

---
 post.php | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/post.php b/post.php
index 21d294cd..7ca9c1a9 100644
--- a/post.php
+++ b/post.php
@@ -682,15 +682,14 @@ if (isset($_POST['delete'])) {
 		incrementSpamHash($post['antispam_hash']);
 	}
 	
-	if (isset($post['tracked_cites'])) {
+	if (isset($post['tracked_cites']) && count($post['tracked_cites'])) {
+		$insert_rows = array();
 		foreach ($post['tracked_cites'] as $cite) {
-			$query = prepare('INSERT INTO ``cites`` VALUES (:board, :post, :target_board, :target)');
-			$query->bindValue(':board', $board['uri']);
-			$query->bindValue(':post', $id, PDO::PARAM_INT);
-			$query->bindValue(':target_board',$cite[0]);
-			$query->bindValue(':target', $cite[1], PDO::PARAM_INT);
-			$query->execute() or error(db_error($query));
+			$insert_rows[] = '(' .
+				$pdo->quote($board['uri']) . ', ' . (int)$id . ', ' .
+				$pdo->quote($cite[0]) . ', ' . (int)$cite[1] . ')';
 		}
+		query('INSERT INTO ``cites`` VALUES ' . implode(', ', $insert_rows)) or error(db_error());;
 	}
 	
 	if (!$post['op'] && strtolower($post['email']) != 'sage' && !$thread['sage'] && ($config['reply_limit'] == 0 || $numposts['replies']+1 < $config['reply_limit'])) {