--- loncom/interface/lonparmset.pm	2007/09/05 00:58:57	1.380
+++ loncom/interface/lonparmset.pm	2007/09/11 01:59:30	1.381
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set parameters for assessments
 #
-# $Id: lonparmset.pm,v 1.380 2007/09/05 00:58:57 albertel Exp $
+# $Id: lonparmset.pm,v 1.381 2007/09/11 01:59:30 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2582,6 +2582,26 @@ sub extractuser {
     return ($key=~/^$env{'request.course.id'}.\[useropt\:($match_username)\:($match_domain)\]\./);
 }
 
+sub parse_listdata_key {
+    my ($key,$listdata) = @_;
+    # split into student/section affected, and
+    # the realm (folder/resource part and parameter
+    my ($student,$realm) = 
+	($key=~/^\Q$env{'request.course.id'}\E\.\[([^\.]+)\]\.(.+)$/);
+    # if course wide student would be undefined
+    if (!defined($student)) {
+	($realm)=($key=~/^\Q$env{'request.course.id'}\E\.(.+)$/);
+    }
+    # strip off the .type if it's not the Question type parameter
+    if ($realm=~/\.type$/ && !exists($listdata->{$key.'.type'})) {
+	$realm=~s/\.type//;
+    }
+    # split into resource+part and parameter name
+    my ($res, $parm) = ($realm=~/^(.*)\.(.*)$/);
+    my ($res, $part) = ($res  =~/^(.*)\.(.*)$/);
+    return ($student,$res,$part,$parm);
+}
+
 sub listdata {
     my ($r,$resourcedata,$listdata,$sortorder)=@_;
 # Start list output
@@ -2593,40 +2613,48 @@ sub listdata {
     $tableopen=0;
     my $foundkeys=0;
     my %keyorder=&standardkeyorder();
+
     foreach my $thiskey (sort {
+	my ($astudent,$ares,$apart,$aparm) = &parse_listdata_key($a,$listdata);
+	my ($bstudent,$bres,$bpart,$bparm) = &parse_listdata_key($b,$listdata);
+
+	# get the numerical order for the param
+	$aparm=$keyorder{'parameter_0_'.$aparm};
+	$bparm=$keyorder{'parameter_0_'.$bparm};
+
+	my $result=0;
+
 	if ($sortorder eq 'realmstudent') {
-	    my ($astudent,$arealm)=($a=~/^\Q$env{'request.course.id'}\E\.\[([^\.]+)\]\.(.+)\.[^\.]+$/);
-	    my ($bstudent,$brealm)=($b=~/^\Q$env{'request.course.id'}\E\.\[([^\.]+)\]\.(.+)\.[^\.]+$/);
-	    if (!defined($astudent)) {
-		($arealm)=($a=~/^\Q$env{'request.course.id'}\E\.(.+)$/);
+            if ($ares     ne $bres    ) {
+		$result = ($ares     cmp $bres);
+            } elsif ($astudent ne $bstudent) { 
+		$result = ($astudent cmp $bstudent);
+	    } elsif ($apart    ne $bpart   ) {
+		$result = ($apart    cmp $bpart);
 	    }
-	    if (!defined($bstudent)) {
-		($brealm)=($b=~/^\Q$env{'request.course.id'}\E\.(.+)$/);
+	} else {
+	    if      ($astudent ne $bstudent) { 
+		$result = ($astudent cmp $bstudent);
+	    } elsif ($ares     ne $bres    ) {
+		$result = ($ares     cmp $bres);
+	    } elsif ($apart    ne $bpart   ) {
+		$result = ($apart    cmp $bpart);
 	    }
-	    $arealm=~s/\.type//;
-	    my ($ares, $aparm) = ($arealm=~/^(.*)\.(.*)$/);
-	    $aparm=$keyorder{'parameter_0_'.$aparm};
-	    $brealm=~s/\.type//;
-	    my ($bres, $bparm) = ($brealm=~/^(.*)\.(.*)$/);
-	    $bparm=$keyorder{'parameter_0_'.$bparm};	   
-	    if ($ares eq $bres) {
-		if (defined($aparm) && defined($bparm)) {
-		    ($aparm <=> $bparm);
-		} elsif (defined($aparm)) {
-		    -1;
-		} elsif (defined($bparm)) {
-		    1;
-		} else {
-		    ($arealm cmp $brealm) || ($astudent cmp $bstudent);
-		}
-	    } else {
-		($arealm cmp $brealm) || ($astudent cmp $bstudent);
+	}
+	    
+	if (!$result) {
+            if (defined($aparm) && defined($bparm)) {
+		$result = ($aparm <=> $bparm);
+            } elsif (defined($aparm)) {
+		$result = -1;
+            } elsif (defined($bparm)) {
+		$result = 1;
 	    }
-	} else {
-	    $a cmp $b;
 	}
+
+	$result;
     } keys %{$listdata}) {
-	 
+
 	if ($$listdata{$thiskey.'.type'}) {
             my $thistype=$$listdata{$thiskey.'.type'};
             if ($$resourcedata{$thiskey.'.type'}) {