--- loncom/lonnet/perl/lonnet.pm	2010/05/30 21:12:24	1.1066
+++ loncom/lonnet/perl/lonnet.pm	2010/07/06 18:36:56	1.1072
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1066 2010/05/30 21:12:24 droeschl Exp $
+# $Id: lonnet.pm,v 1.1072 2010/07/06 18:36:56 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -710,7 +710,7 @@ sub compare_server_load {
     my $userloadans = &reply('userload',$try_server);
 
     if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
-	next; #didn't get a number from the server
+	return; #didn't get a number from the server
     }
 
     my $load;
@@ -3035,7 +3035,7 @@ sub courseiddump {
     my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
         $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
         $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
-        $cloneonly,$createdbefore,$createdafter,$creationcontext)=@_;
+        $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
     my $as_hash = 1;
     my %returnhash;
     if (!$domfilter) { $domfilter=''; }
@@ -3057,7 +3057,8 @@ sub courseiddump {
                          $showhidden.':'.$caller.':'.&escape($cloner).':'.
                          &escape($cc_clone).':'.$cloneonly.':'.
                          &escape($createdbefore).':'.&escape($createdafter).':'.
-                         &escape($creationcontext),$tryserver);
+                         &escape($creationcontext).':'.$domcloner,
+                         $tryserver);
                 my @pairs=split(/\&/,$rep);
                 foreach my $item (@pairs) {
                     my ($key,$value)=split(/\=/,$item,2);
@@ -8131,6 +8132,7 @@ sub add_prefix_and_part {
 # ---------------------------------------------------------------- Get metadata
 
 my %metaentry;
+my %importedpartids;
 sub metadata {
     my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
     $uri=&declutter($uri);
@@ -8157,6 +8159,10 @@ sub metadata {
 	if (defined($cached)) { return $result->{':'.$what}; }
     }
     {
+# Imported parts would go here
+        my %importedids=();
+        my @origfileimportpartids=();
+        my $importedparts=0;
 #
 # Is this a recursive call for a library?
 #
@@ -8240,27 +8246,55 @@ sub metadata {
 # This is not a package - some other kind of start tag
 #
 		    my $entry=$token->[1];
-		    my $unikey;
-		    if ($entry eq 'import') {
-			$unikey='';
-		    } else {
-			$unikey=$entry;
-		    }
-		    $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
-
-		    if (defined($token->[2]->{'id'})) { 
-			$unikey.='_'.$token->[2]->{'id'}; 
-		    }
+		    my $unikey='';
 
 		    if ($entry eq 'import') {
 #
 # Importing a library here
 #
+                        my $location=$parser->get_text('/import');
+                        my $dir=$filename;
+                        $dir=~s|[^/]*$||;
+                        $location=&filelocation($dir,$location);
+                       
+                        my $importmode=$token->[2]->{'importmode'};
+                        if ($importmode eq 'problem') {
+# Import as problem/response
+                           $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
+                        } elsif ($importmode eq 'part') {
+# Import as part(s)
+                           $importedparts=1;
+# We need to get the original file and the imported file to get the part order correct
+# Good news: we do not need to worry about nested libraries, since parts cannot be nested
+# Load and inspect original file
+                           if ($#origfileimportpartids<0) {
+                              undef(%importedpartids);
+                              my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
+                              my $origfile=&getfile($origfilelocation);
+                              @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
+                           }
+
+# Load and inspect imported file
+                           my $impfile=&getfile($location);
+                           my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
+                           if ($#impfilepartids>=0) {
+# This problem had parts
+                               $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
+                           } else {
+# Importing by turning a single problem into a problem part
+# It gets the import-tags ID as part-ID
+                               $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
+                               $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
+                           }
+                        } else {
+# Normal import
+                           $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
+                           if (defined($token->[2]->{'id'})) {
+                              $unikey.='_'.$token->[2]->{'id'};
+                           }
+                        }
+
 			if ($depthcount<20) {
-			    my $location=$parser->get_text('/import');
-			    my $dir=$filename;
-			    $dir=~s|[^/]*$||;
-			    $location=&filelocation($dir,$location);
 			    my $metadata = 
 				&metadata($uri,'keys', $location,$unikey,
 					  $depthcount+1);
@@ -8268,9 +8302,16 @@ sub metadata {
 				$metaentry{':'.$meta}=$metaentry{':'.$meta};
 				$metathesekeys{$meta}=1;
 			    }
-			}
-		    } else { 
 			
+                        }
+		    } else {
+#
+# Not importing, some other kind of non-package, non-library start tag
+# 
+                        $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
+                        if (defined($token->[2]->{'id'})) {
+                            $unikey.='_'.$token->[2]->{'id'};
+                        }
 			if (defined($token->[2]->{'name'})) { 
 			    $unikey.='_'.$token->[2]->{'name'}; 
 			}
@@ -8344,6 +8385,22 @@ sub metadata {
 	    grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
 	$metaentry{':packages'} = join(',',@uniq_packages);
 
+        if ($importedparts) {
+# We had imported parts and need to rebuild partorder
+           $metaentry{':partorder'}='';
+           $metathesekeys{'partorder'}=1;
+           for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
+               if ($origfileimportpartids[$index] eq 'part') {
+# original part, part of the problem
+                  $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
+               } else {
+# we have imported parts at this position
+                  $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
+               }
+           }
+           $metaentry{':partorder'}=~s/^\,//;
+        }
+
 	$metaentry{':keys'} = join(',',keys(%metathesekeys));
 	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
 	$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);