From df2e5ef505d954230956a4109aebf72198e4a3f4 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Tue, 13 Jul 2004 20:44:13 +0000
Subject: - Patch #8942 by Morbus: when testing under devel.module, the "SELECT
 timestamp from {history}" SQL statement is executed multiple times in two
 different functions. This duplicated code should be placed in a function, and
 that's been done already with node_last_visited() - the remaining code was
 just never updated to use the new routine. This patch changes the old code to
 use node_last_visited, and also modifies node_last_visited() to cache the
 result of the database call.

---
 modules/node.module      | 14 ++++++++------
 modules/node/node.module | 14 ++++++++------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/modules/node.module b/modules/node.module
index af41ab7a2..4044d64cd 100644
--- a/modules/node.module
+++ b/modules/node.module
@@ -104,8 +104,7 @@ function node_tag_new($nid) {
   global $user;
 
   if ($user->uid) {
-    $result = db_query('SELECT timestamp FROM {history} WHERE uid = %d AND nid = %d', $user->uid, $nid);
-    if (db_fetch_object($result)) {
+    if (node_last_viewed($nid)) {
       db_query('UPDATE {history} SET timestamp = %d WHERE uid = %d AND nid = %d', time(), $user->uid, $nid);
     }
     else {
@@ -120,9 +119,13 @@ function node_tag_new($nid) {
  */
 function node_last_viewed($nid) {
   global $user;
+  static $history;
 
-  $history = db_fetch_object(db_query("SELECT timestamp FROM {history} WHERE uid = '$user->uid' AND nid = %d", $nid));
-  return ($history->timestamp ? $history->timestamp : NODE_NEW_LIMIT);
+  if (!isset($history[$nid])) {
+    $history[$nid] = db_fetch_object(db_query("SELECT timestamp FROM {history} WHERE uid = '$user->uid' AND nid = %d", $nid));
+  }
+
+  return ($history[$nid]->timestamp ? $history[$nid]->timestamp : 0);
 }
 
 /**
@@ -140,8 +143,7 @@ function node_is_new($nid, $timestamp) {
 
   if (!isset($cache[$nid])) {
     if ($user->uid) {
-      $history = db_fetch_object(db_query('SELECT timestamp FROM {history} WHERE uid = %d AND nid = %d', $user->uid, $nid));
-      $cache[$nid] = $history->timestamp ? $history->timestamp : 0;
+      $cache[$nid] = node_last_viewed($nid);
     }
     else {
       $cache[$nid] = time();
diff --git a/modules/node/node.module b/modules/node/node.module
index af41ab7a2..4044d64cd 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -104,8 +104,7 @@ function node_tag_new($nid) {
   global $user;
 
   if ($user->uid) {
-    $result = db_query('SELECT timestamp FROM {history} WHERE uid = %d AND nid = %d', $user->uid, $nid);
-    if (db_fetch_object($result)) {
+    if (node_last_viewed($nid)) {
       db_query('UPDATE {history} SET timestamp = %d WHERE uid = %d AND nid = %d', time(), $user->uid, $nid);
     }
     else {
@@ -120,9 +119,13 @@ function node_tag_new($nid) {
  */
 function node_last_viewed($nid) {
   global $user;
+  static $history;
 
-  $history = db_fetch_object(db_query("SELECT timestamp FROM {history} WHERE uid = '$user->uid' AND nid = %d", $nid));
-  return ($history->timestamp ? $history->timestamp : NODE_NEW_LIMIT);
+  if (!isset($history[$nid])) {
+    $history[$nid] = db_fetch_object(db_query("SELECT timestamp FROM {history} WHERE uid = '$user->uid' AND nid = %d", $nid));
+  }
+
+  return ($history[$nid]->timestamp ? $history[$nid]->timestamp : 0);
 }
 
 /**
@@ -140,8 +143,7 @@ function node_is_new($nid, $timestamp) {
 
   if (!isset($cache[$nid])) {
     if ($user->uid) {
-      $history = db_fetch_object(db_query('SELECT timestamp FROM {history} WHERE uid = %d AND nid = %d', $user->uid, $nid));
-      $cache[$nid] = $history->timestamp ? $history->timestamp : 0;
+      $cache[$nid] = node_last_viewed($nid);
     }
     else {
       $cache[$nid] = time();
-- 
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