### Eclipse Workspace Patch 1.0
#P drupal
Index: modules/tracker/tracker.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/tracker/tracker.module,v
retrieving revision 1.138
diff -u -r1.138 tracker.module
--- modules/tracker/tracker.module	21 Nov 2006 20:14:19 -0000	1.138
+++ modules/tracker/tracker.module	29 Nov 2006 22:16:55 -0000
@@ -78,14 +78,29 @@
  */
 function tracker_page($uid = 0) {
   if ($uid) {
-    $sql = 'SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, l.last_comment_timestamp AS last_post, l.comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {users} u ON n.uid = u.uid LEFT JOIN {comments} c ON n.nid = c.nid AND (c.status = %d OR c.status IS NULL) WHERE n.status = 1 AND (n.uid = %d OR c.uid = %d) ORDER BY last_post DESC';
-    $sql = db_rewrite_sql($sql);
-    $sql_count = 'SELECT COUNT(DISTINCT(n.nid)) FROM {node} n LEFT JOIN {comments} c ON n.nid = c.nid AND (c.status = %d OR c.status IS NULL) WHERE n.status = 1 AND (n.uid = %d OR c.uid = %d)';
-    $sql_count = db_rewrite_sql($sql_count);
-    $result = pager_query($sql, 25, 0, $sql_count, COMMENT_PUBLISHED, $uid, $uid);
+    // Different SQL code whether the comment module is enabled or not
+    if (module_exists('comment')) {
+      $sql = 'SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, COALESCE(l.last_comment_timestamp, n.changed) AS last_post, l.comment_count FROM {node} n LEFT JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {users} u ON n.uid = u.uid LEFT JOIN {comments} c ON n.nid = c.nid AND (c.status = %d OR c.status IS NULL) WHERE n.status = 1 AND (n.uid = %d OR c.uid = %d) ORDER BY last_post DESC';
+      $sql = db_rewrite_sql($sql);
+      $sql_count = 'SELECT COUNT(DISTINCT(n.nid)) FROM {node} n LEFT JOIN {comments} c ON n.nid = c.nid AND (c.status = %d OR c.status IS NULL) WHERE n.status = 1 AND (n.uid = %d OR c.uid = %d)';
+      $sql_count = db_rewrite_sql($sql_count);
+      $result = pager_query($sql, 25, 0, $sql_count, COMMENT_PUBLISHED, $uid, $uid);
+    } 
+    else {
+      $sql = 'SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, n.changed AS last_post FROM {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE n.status = 1 AND (n.uid = %d) ORDER BY last_post DESC';
+      $sql = db_rewrite_sql($sql);
+      $sql_count = 'SELECT COUNT(DISTINCT(n.nid)) FROM {node} n WHERE n.status = 1 AND n.uid = %d';
+      $sql_count = db_rewrite_sql($sql_count);
+      $result = pager_query($sql, 25, 0, $sql_count, $uid);
+    }
   }
   else {
-    $sql = 'SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, l.last_comment_timestamp AS last_post, l.comment_count FROM {node} n INNER JOIN {users} u ON n.uid = u.uid INNER JOIN {node_comment_statistics} l ON n.nid = l.nid WHERE n.status = 1 ORDER BY last_post DESC';
+    if (module_exists('comment')) {
+      $sql = 'SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, COALESCE(l.last_comment_timestamp, n.changed) AS last_post, l.comment_count FROM {node} n INNER JOIN {users} u ON n.uid = u.uid LEFT JOIN {node_comment_statistics} l ON n.nid = l.nid WHERE n.status = 1 ORDER BY last_post DESC';
+    } 
+    else {
+      $sql = 'SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, n.changed AS last_post FROM {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE n.status = 1 ORDER BY last_post DESC';
+    }
     $sql = db_rewrite_sql($sql);
     $sql_count = 'SELECT COUNT(n.nid) FROM {node} n WHERE n.status = 1';
     $sql_count = db_rewrite_sql($sql_count);
@@ -104,17 +119,22 @@
       }
     }
 
-    $rows[] = array(
-      node_get_types('name', $node->type),
-      l($node->title, "node/$node->nid") .' '. theme('mark', node_mark($node->nid, $node->changed)),
-      theme('username', $node),
-      array('class' => 'replies', 'data' => $comments),
-      t('@time ago', array('@time' => format_interval(time() - $node->last_post)))
-    );
+    $row = array();
+    $row[] = node_get_types('name', $node);
+    $row[] = l($node->title, "node/$node->nid") .' '. theme('mark', node_mark($node->nid, $node->changed));
+    $row[] = theme('username', $node);
+    if (module_exists('comment')) {
+      $row[] = array('class' => 'replies', 'data' => $comments);
+    }
+    $row[] = t('@time ago', array('@time' => format_interval(time() - $node->last_post)));
+    $rows[] = $row;
+  }
+  if (module_exists('comment')) {
+    $header = array(t('Type'), t('Post'), t('Author'), t('Replies'), t('Last post'));
+  } 
+  else {
+    $header = array(t('Type'), t('Post'), t('Author'), t('Posted'));
   }
-
-  $header = array(t('Type'), t('Post'), t('Author'), t('Replies'), t('Last post'));
-
   $output = '<div id="tracker">';
   $output .= theme('table', $header, $rows);
   $output .= theme('pager', NULL, 25, 0);