Add TBExptLogFile() function and use that in spewlogfile instead of

the actual query.

www/dbdefs.php3.in

@@ -1122,6 +1122,20 @@ function TBUserPCs($uid)
     return mysql_num_rows($query_result);
 }
 
+function TBExptLogFile($pid, $eid)
+{
+    $query_result =
+	DBQueryFatal("select logfile from experiments ".
+		     "where pid='$pid' and eid='$eid' and ".
+		     " logfile is not null");
+
+    if (mysql_num_rows($query_result) == 0) {
+	return 0;
+    }
+    $row = mysql_fetch_row($query_result);
+    return $row[0];
+}
+
 function TBWebdbAllowed($uid) {
     $query_result =
         DBQueryFatal("select dbedit from users ".

www/spewlogfile.php3

@@ -45,11 +45,7 @@ if (! TBExptAccessCheck($uid, $pid, $eid, $TB_EXPT_READINFO)) {
 # Check for a logfile. This file is transient, so it could be gone by
 # the time we get to reading it.
 #
-$query_result =
-    DBQueryFatal("select logfile from experiments ".
-		 "where pid='$pid' and eid='$eid' and logfile is not null");
-
-if (mysql_num_rows($query_result) == 0) {
+if (! TBExptLogFile($pid, $eid)) {
     USERERROR("Experiment $pid/$eid is no longer in transition!", 1);
 }