--- loncom/interface/lonmeta.pm	2000/10/21 10:46:35	1.1
+++ loncom/interface/lonmeta.pm	2003/12/29 17:11:53	1.46
@@ -1,107 +1,619 @@
 # The LearningOnline Network with CAPA
-#
 # Metadata display handler
 #
-# (TeX Content Handler
+# $Id: lonmeta.pm,v 1.46 2003/12/29 17:11:53 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
 #
-# 05/29/00,05/30,10/11 Gerd Kortemeyer)
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
-# 10/19,10/21 Gerd Kortemeyer
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+
 
 package Apache::lonmeta;
 
 use strict;
-use Apache::File;
 use Apache::Constants qw(:common);
-use HTML::TokeParser;
+use Apache::lonnet();
+use Apache::loncommon();
+use Apache::lonhtmlcommon();
+use Apache::lonmsg;
+use Apache::lonpublisher;
+use Apache::lonlocal;
+use Apache::lonmysql;
+
+# MySQL table columns
+
+my @columns;
+
+# ----------------------------------------- Fetch and evaluate dynamic metadata
+
+sub dynamicmeta {
+    my $url=&Apache::lonnet::declutter(shift);
+    $url=~s/\.meta$//;
+    my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
+    my $regexp=$url;
+    $regexp=~s/(\W)/\\$1/g;
+    $regexp='___'.$regexp.'___';
+    my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
+				       $aauthor,$regexp);
+    my %sum=();
+    my %cnt=();
+    my %concat=();
+    my %listitems=(
+                   'course'       => 'add',
+                   'goto'         => 'add',
+                   'comefrom'     => 'add',
+                   'avetries'     => 'avg',
+                   'stdno'        => 'add',
+                   'difficulty'   => 'avg',
+                   'clear'        => 'avg',
+                   'technical'    => 'avg',
+                   'helpful'      => 'avg',
+                   'correct'      => 'avg',
+                   'depth'        => 'avg',
+                   'comments'     => 'app',
+                   'usage'        => 'cnt'
+                   );
+    while ($_=each(%evaldata)) {
+	my ($item,$purl,$cat)=split(/___/,$_);
+	### Apache->request->print("\n".$_.' - '.$item.'<br />');
+	if (defined($cnt{$cat})) { $cnt{$cat}++; } else { $cnt{$cat}=1; }
+        unless ($listitems{$cat} eq 'app') {
+            if (defined($sum{$cat})) {
+               $sum{$cat}+=$evaldata{$_};
+               $concat{$cat}.=','.$item;
+	    } else {
+               $sum{$cat}=$evaldata{$_};
+               $concat{$cat}=$item;
+	    }
+        } else {
+            if (defined($sum{$cat})) {
+               if ($evaldata{$_}) {
+                  $sum{$cat}.='<hr />'.$evaldata{$_};
+	       }
+ 	    } else {
+	       $sum{$cat}=''.$evaldata{$_};
+	    }
+	}
+    }
+    my %returnhash=();
+    while ($_=each(%cnt)) {
+       if ($listitems{$_} eq 'avg') {
+	   $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0;
+       } elsif ($listitems{$_} eq 'cnt') {
+           $returnhash{$_}=$cnt{$_};
+       } else {
+           $returnhash{$_}=$sum{$_};
+       }
+       $returnhash{$_.'_list'}=$concat{$_};
+       ### Apache->request->print("\n<hr />".$_.': '.$returnhash{$_}.'<br />'.$returnhash{$_.'_list'});
+    }
+    #
+    # Deal with 'count' separately
+    $returnhash{'count'} = &access_count($url,$aauthor,$adomain);
 
+    return %returnhash;
+}
 
-# ================================================= Unpack metadata into a hash
+sub access_count {
+    my ($src,$author,$adomain) = @_;
+    my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
+                                        $author,$src);
+    if (! exists($countdata{$src})) {
+        return 'Not Available';
+    } else {
+        return $countdata{$src};
+    }
+}
 
-sub unpackagemeta {
-    my ($datastring,$fordisplay)=@_;
-    my %content=();
-    my $parser=HTML::TokeParser->new(\$datastring);
-    my $token;
-    while ($token=$parser->get_token) {
-       if ($token->[0] eq 'S') {
-	   my $entry=$token->[1];
-           my $value=$parser->get_text('/'.$entry);
-           if (($token->[2]->{'display'}) && ($fordisplay)) {
-	       $value.='__dis__'.$token->[2]->{'display'};
-           }
-           $content{$entry}=$value;
-       }
+# ------------------------------------- Try to make an alt tag if there is none
+
+sub alttag {
+    my ($base,$src)=@_;
+    my $fullpath=&Apache::lonnet::hreflocation($base,$src);
+    my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
+               &Apache::lonnet::metadata($fullpath,'subject').' '.
+               &Apache::lonnet::metadata($fullpath,'abstract');
+    $alttag=~s/\s+/ /gs;
+    $alttag=~s/\"//gs;
+    $alttag=~s/\'//gs;
+    $alttag=~s/\s+$//gs;
+    $alttag=~s/^\s+//gs;
+    if ($alttag) { return $alttag; } else 
+                 { return 'No information available'; }
+}
+
+# -------------------------------------------------------------- Author display
+
+sub authordisplay {
+    my ($aname,$adom)=@_;
+    return &Apache::loncommon::aboutmewrapper(
+                &Apache::loncommon::plainname($aname,$adom),
+                    $aname,$adom,'preview').' <tt>['.$aname.'@'.$adom.']</tt>';
+}
+
+# -------------------------------------------------------------- Pretty display
+
+sub evalgraph {
+    my $value=shift;
+    unless ($value) { return ''; }
+    my $val=int($value*10.+0.5)-10;
+    my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
+    if ($val>=20) {
+	$output.='<td width=20 bgcolor="#555555">&nbsp&nbsp;</td>';
+    } else {
+        $output.='<td width='.($val).' bgcolor="#555555">&nbsp;</td>'.
+                 '<td width='.(20-$val).' bgcolor="#FF3333">&nbsp;</td>';
+    }
+    $output.='<td bgcolor="#FFFF33">&nbsp;</td>';
+    if ($val>20) {
+	$output.='<td width='.($val-20).' bgcolor="#33FF33">&nbsp;</td>'.
+                 '<td width='.(40-$val).' bgcolor="#555555">&nbsp;</td>';
+    } else {
+       $output.='<td width=20 bgcolor="#555555">&nbsp&nbsp;</td>';
+    }
+    $output.='<td> ('.$value.') </td></tr></table>';
+    return $output;
+}
+
+sub diffgraph {
+    my $value=shift;
+    unless ($value) { return ''; }
+    my $val=int(40.0*$value+0.5);
+    my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
+                '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
+    my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
+    for (my $i=0;$i<8;$i++) {
+	if ($val>$i*5) {
+            $output.='<td width=5 bgcolor="'.$colors[$i].'">&nbsp;</td>';
+        } else {
+	    $output.='<td width=5 bgcolor="#555555">&nbsp;</td>';
+	}
+    }
+    $output.='<td> ('.$value.') </td></tr></table>';
+    return $output;
+}
+
+# ==================================================== Turn MySQL row into hash
+
+sub metadata_col_to_hash {
+    my @cols=@_;
+    my %hash=();
+    for (my $i=0; $i<=$#columns; $i++) {
+	$hash{$columns[$i]}=$cols[$i];
+    }
+    return %hash;
+}
+
+# ============================================================= The field names
+
+sub fieldnames {
+    return &Apache::lonlocal::texthash(
+				   'title' => 'Title',
+				   'author' =>'Author(s)',
+				   'subject' => 'Subject',
+				   'keywords' => 'Keyword(s)',
+				   'notes' => 'Notes',
+				   'abstract' => 'Abstract',
+                                   'lowestgradelevel' => 'Lowest Grade Level',
+                                   'highestgradelevel' => 'Highest Grade Level',
+                                   'standards' => 'Standards',
+				   'mime' => 'MIME Type',
+				   'language' => 'Language',
+				   'creationdate' => 'Creation Date',
+				   'lastrevisiondate' => 'Last Revision Date',
+				   'owner' => 'Publisher/Owner',
+                                   'copyright' => 'Copyright/Distribution',
+				   'customdistributionfile' => 'Custom Distribution File',
+                                   'obsolete' => 'Obsolete',
+				   'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
+				   'count'      => 'Network-wide number of accesses (hits)',
+				   'course'     => 'Network-wide number of courses using resource',
+				   'usage'      => 'Number of resources using or importing resource',
+				   'goto'       => 'Number of resources that follow this resource in maps',
+				   'comefrom'   => 'Number of resources that lead up to this resource in maps',
+				   'clear'      => 'Material presented in clear way',
+				   'depth'      => 'Material covered with sufficient depth',
+				   'helpful'    => 'Material is helpful',
+				   'correct'    => 'Material appears to be correct',
+				   'technical'  => 'Resource is technically correct', 
+				   'avetries'   => 'Average number of tries till solved',
+				   'stdno'      => 'Total number of students who have worked on this problem',
+				   'difficulty' => 'Degree of difficulty'
+				       );
+}
+
+# =========================================== Pretty printing of metadata field
+
+sub prettyprint {
+    my ($type,$value)=@_;
+    unless (defined($value)) { return '&nbsp;'; }
+# Title
+    if ($type eq 'title') {
+	return '<font size="+1" face="arial">'.$value.'</font>';
     }
-    return %content;
+# Dates
+    if (($type eq 'creationdate') ||
+	($type eq 'lastrevisiondate')) {
+	return &Apache::lonlocal::locallocaltime(
+			  &Apache::lonmysql::unsqltime($value));
+    }
+# Language
+    if ($type eq 'language') {
+	return &Apache::loncommon::languagedescription($value);
+    }
+# Copyright
+    if ($type eq 'copyright') {
+	return &Apache::loncommon::copyrightdescription($value);
+    }
+# MIME
+    if ($type eq 'mime') {
+       return '<img src="'.&Apache::loncommon::icon($value).'" />&nbsp;'.
+	   &Apache::loncommon::filedescription($value);
+   }
+# Person
+    if (($type eq 'author') || 
+	($type eq 'owner') ||
+	($type eq 'modifyinguser') ||
+	($type eq 'authorspace')) {
+	$value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
+	return $value;
+    }
+# File
+    if (($type eq 'customdistributionfile') ||
+	($type eq 'obsoletereplacement') ||
+	($type eq 'goto_list') ||
+	($type eq 'comefrom_list') ||
+	($type eq 'sequsage_list')) {
+	return join('<br />',map {
+	       &Apache::lonnet::gettitle($_).' ['.
+	       &Apache::lonhtmlcommon::crumbs(&Apache::lonnet::clutter($_),'preview').']';
+	    } split(/\s*\,\s*/,$value));
+    }
+# Evaluations
+    if (($type eq 'clear') ||
+	($type eq 'depth') ||
+	($type eq 'helpful') ||
+	($type eq 'correct') ||
+	($type eq 'technical')) {
+	return &evalgraph($value);
+    }
+# Difficulty
+    if ($type eq 'difficulty') {
+	return &diffgraph($value);
+    }
+# List of courses
+    if ($type=~/\_list/) {
+	return join('<br />',map {
+	    my %courseinfo=&Apache::lonnet::coursedescription($_);  
+	    '<a href="/public/'.
+		$courseinfo{'domain'}.'/'.$courseinfo{'num'}.'/syllabus" target="preview">'.
+		$courseinfo{'description'}.'</a>';
+	} split(/\s*\,\s*/,$value));
+    }
+# No pretty print found
+    return $value;
+}
+# ============================================== Pretty input of metadata field
+
+sub prettyinput {
+    my ($type,$value,$fieldname)=@_;
 }
 
 # ================================================================ Main Handler
 
 sub handler {
   my $r=shift;
-  my @metacontents;
-  my %content;
+
+    my $loaderror=&Apache::lonnet::overloaderror($r);
+    if ($loaderror) { return $loaderror; }
+
+
+    my $uri=$r->uri;
+
+  unless ($uri=~/^\/\~/) { 
+# =========================================== This is not in construction space
+    my ($resdomain,$resuser)=
+           (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
+
+    $loaderror=
+       &Apache::lonnet::overloaderror($r,
+         &Apache::lonnet::homeserver($resuser,$resdomain));
+    if ($loaderror) { return $loaderror; }
+
+  my %content=();
 
 # ----------------------------------------------------------- Set document type
 
-  $r->content_type('text/html');
+  &Apache::loncommon::content_type($r,'text/html');
   $r->send_http_header;
 
   return OK if $r->header_only;
 
 # ------------------------------------------------------------------- Read file
-
-  {
-    my $fh=Apache::File->new($r->filename);
-    @metacontents=<$fh>;
+  foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
+      $content{$_}=&Apache::lonnet::metadata($uri,$_);
   }
+# ------------------------------------------------------------------ Hide stuff
 
-  %content=&unpackagemeta(join("\n",@metacontents),1);
+  unless ($ENV{'user.adv'}) {
+      foreach ('keywords','notes','abstract','subject') {
+          $content{$_}='<i>- '.&mt('not displayed').' -</i>';
+      }
+  }
 
 # --------------------------------------------------------------- Render Output
-  
+# displayed url
+    my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
+    my $disuri=&Apache::lonnet::clutter($uri);
+    $disuri=~s/\.meta$//;
+    $disuri=&Apache::lonhtmlcommon::crumbs($disuri);
+# version
+    my $currentversion=&Apache::lonnet::getversion($disuri);
+    my $versiondisplay='';
+    if ($thisversion) {
+	$versiondisplay=&mt('Version').': '.$thisversion.
+	    ' ('.&mt('most recent version').': '.$currentversion.')';
+    } else {
+	$versiondisplay='Version: '.$currentversion;
+    }
+# obsolete
+    my $obsolete=$content{'obsolete'};
+    my $obsoletewarning='';
+    if (($obsolete) && ($ENV{'user.adv'})) {
+	$obsoletewarning='<p><font color="red">'.
+	    &mt('This resource has been marked obsolete by the author(s)').'</font></p>';
+    }
+
+    my %lt=&fieldnames();
+    my $table='';
+    my $bodytag=&Apache::loncommon::bodytag
+            ('Catalog Information','','','',$resdomain);
+    foreach ('title', 
+	     'author', 
+	     'subject', 
+	     'keywords', 
+	     'notes', 
+	     'abstract', 
+	     'mime', 
+	     'language', 
+	     'creationdate', 
+	     'lastrevisiondate', 
+	     'owner', 
+	     'copyright', 
+	     'customdistributionfile', 
+	     'obsolete', 
+	     'obsoletereplacement') {
+	$table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
+	        '</td><td bgcolor="#CCCCCC">'.
+                &prettyprint($_,$content{$_}).'</td></tr>';
+	delete $content{$_};
+    }
+
   $r->print(<<ENDHEAD);
 <html><head><title>Catalog Information</title></head>
-<body bgcolor="#FFFFFF">
-<h1>Catalog Information</h1>
+$bodytag
 <h2>$content{'title'}</h2>
-<h3>Author(s): $content{'author'}</h3>
-<b>Subject:</b> $content{'subject'}<br>
-<b>Keyword(s):</b> $content{'keywords'}<br>
-<b>Notes:</b> $content{'notes'}<br>
-<b>Abstract:</b>
-<blockquote>$content{'abstract'}</blockquote>
-<hr>
-<b>MIME Type:</b> $content{'mime'}<br>
-<b>Language:</b> $content{'language'}<br>
-<b>Creation Date:</b> $content{'creationdate'}<br>
-<b>Last Revision Date:</b> $content{'lastrevisiondate'}<br>
-<b>Publisher/Owner:</b> $content{'owner'}<br>
-<b>Copyright/Distribution:</b> $content{'copyright'}
-<hr>
+<h3><tt>$disuri</tt></h3>
+$obsoletewarning
+$versiondisplay<br />
+<table cellspacing=2 border=0>
+$table
+</table>
 ENDHEAD
-  delete($content{'title'});
-  delete($content{'author'});
-  delete($content{'subject'});
-  delete($content{'keywords'});
-  delete($content{'notes'});
-  delete($content{'abstract'});
-  delete($content{'mime'});
-  delete($content{'language'});
-  delete($content{'creationdate'});
-  delete($content{'lastrevisiondate'});
-  delete($content{'owner'});
-  delete($content{'copyright'});
-  map {
-      my ($value,$name)=split(/\_\_dis\_\_/,$content{$_});
-      unless ($name) { $name=$_; }
-      $r->print('<b>'.$name.':</b> '.$value.'<br>');
-  } sort keys %content;
-  $r->print('</body></html>');
-  return OK;
+  if ($ENV{'user.adv'}) {
+# ------------------------------------------------------------ Dynamic Metadata
+   $r->print(
+   '<h3>'.&mt('Dynamic Metadata').' ('.
+	     &mt('updated periodically').')</h3>'.&mt('Processing').
+	     ' ...<br>');
+   $r->rflush();
+   my %items=&fieldnames();
+   my %dynmeta=&dynamicmeta($uri);
+   $r->print(
+'</table><h4>'.&mt('Access and Usage Statistics').'</h4><table cellspacing=2 border=0>');
+   foreach ('count') {
+       $r->print(
+'<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
+$dynmeta{$_}."&nbsp;</td></tr>\n");
+   }
+   foreach my $cat ('usage','comefrom','goto') {
+       $r->print(
+'<tr><td bgcolor="#AAAAAA">'.$items{$cat}.'</td><td bgcolor="#CCCCCC">'.
+$dynmeta{$cat}.'<font size="-1"><ul>'.join("\n",
+      map { my $murl=$_; 
+ '<li><a href="'.&Apache::lonnet::clutter($murl).'" target="preview">'.
+                        &Apache::lonnet::gettitle($murl).' [<tt>'.$murl
+                        .'</tt>]</a></li>' }
+      split(/\,/,$dynmeta{$cat.'_list'}))."</ul></font></td></tr>\n");
+   }
+   foreach my $cat ('course') {
+       $r->print(
+'<tr><td bgcolor="#AAAAAA">'.$items{$cat}.'</td><td bgcolor="#CCCCCC">'.
+$dynmeta{$cat}.'<font size="-1"><ul>'.join("\n",
+      map { my %courseinfo=&Apache::lonnet::coursedescription($_);  
+ '<li><a href="/public/'.
+  $courseinfo{'domain'}.'/'.$courseinfo{'num'}.'/syllabus" target="preview">'.
+  $courseinfo{'description'}.'</a></li>' }
+      split(/\,/,$dynmeta{$cat.'_list'}))."</ul></font></td></tr>\n");
+   }
+       $r->print('</table>');
+   if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) {
+      $r->print(
+'<h4>'.&mt('Assessment Statistical Data').'</h4><table cellspacing=2 border=0>');
+      foreach ('stdno','avetries') {
+          $r->print(
+'<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
+$dynmeta{$_}."&nbsp;</td></tr>\n");
+      }
+      foreach ('difficulty') {
+         $r->print(
+'<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
+&diffgraph($dynmeta{$_})."</td></tr>\n");
+      }
+      $r->print('</table>');    
+   }
+   $r->print('<h4>'.&mt('Evaluation Data').'</h4><table cellspacing=2 border=0>');
+   foreach ('clear','depth','helpful','correct','technical') {
+       $r->print(
+'<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
+&evalgraph($dynmeta{$_})."</td></tr>\n");
+   }    
+   $r->print('</table>');
+   $disuri=~/^(\w+)\/(\w+)\//;   
+   if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2))
+       || ($ENV{'user.role.ca./'.$1.'/'.$2})) {
+      $r->print(
+  '<h4>'.&mt('Evaluation Comments').' ('.&mt('visible to author and co-authors only').')</h4>'.
+      '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
+      $r->print(
+   '<h4>'.&mt('Error Messages').' ('.
+          &mt('visible to author and co-authors only').')</h4>');
+      my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$1,$2);
+      foreach (keys %errormsgs) {
+	if ($_=~/^\Q$disuri\E\_\d+$/) {
+          my %content=&Apache::lonmsg::unpackagemsg($errormsgs{$_});
+	  $r->print('<b>'.$content{'time'}.'</b>: '.$content{'message'}.
+                    '<br />');
+        }
+      }      
+   }
+# ------------------------------------------------------------- All other stuff
+   $r->print(
+ '<h3>'.&mt('Additional Metadata (non-standard, parameters, exports)').'</h3>');
+   foreach (sort keys %content) {
+      my $name=$_;
+      unless ($name=~/\.display$/) {
+	  my $display=&Apache::lonnet::metadata($uri,$name.'.display');
+	  unless ($display) { $display=$name; };
+	  my $otherinfo='';
+	  foreach ('name','part','type','default') {
+	      if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
+		  $otherinfo.=' '.$_.'='.
+		      &Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
+	      }
+	  }
+	  $r->print('<b>'.$display.':</b> '.$content{$name});
+	  if ($otherinfo) {
+	      $r->print(' ('.$otherinfo.')');
+	  }
+	  $r->print("<br>\n");
+      }
+   }
+  }
+# ===================================================== End Resource Space Call
+ } else {
+# ===================================================== Construction Space Call
+
+# ----------------------------------------------------------- Set document type
+
+  &Apache::loncommon::content_type($r,'text/html');
+  $r->send_http_header;
+
+  return OK if $r->header_only;
+# ---------------------------------------------------------------------- Header
+  my $bodytag=&Apache::loncommon::bodytag('Edit Catalog Information');
+  my $disuri=$uri;
+  my $fn=&Apache::lonnet::filelocation('',$uri);
+  $disuri=~s/^\/\~\w+//;
+  $disuri=~s/\.meta$//;
+  my $displayfile='Catalog Information for '.$disuri;
+  if ($disuri=~/\/default$/) {
+      my $dir=$disuri;
+      $dir=~s/default$//;
+      $displayfile=&mt('Default Cataloging Information for Directory').' '.
+	  $dir;
+  }
+  %Apache::lonpublisher::metadatafields=();
+  %Apache::lonpublisher::metadatakeys=();
+  &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile($fn));
+  $r->print(<<ENDEDIT);
+<html><head><title>Edit Catalog Information</title></head>
+$bodytag
+<h1>$displayfile</h1>
+<form method="post">
+ENDEDIT
+   my %lt=&fieldnames();
+   foreach ('author','title','subject','keywords','abstract','notes',
+            'copyright','customdistributionfile','language',
+            'obsolete','obsoletereplacement') {
+       if ($ENV{'form.new_'.$_}) {
+	   $Apache::lonpublisher::metadatafields{$_}=$ENV{'form.new_'.$_};
+       }
+       if (m/copyright/) {
+	   $r->print(&Apache::lonpublisher::selectbox($lt{$_},'new_'.$_,
+			       ($Apache::lonpublisher::metadatafields{$_}?
+				$Apache::lonpublisher::metadatafields{$_}:'default'),
+			       \&Apache::loncommon::copyrightdescription,
+			       (&Apache::loncommon::copyrightids)));
+       } elsif (m/language/) {
+	   $r->print(&Apache::lonpublisher::selectbox($lt{$_},'new_'.$_,
+			      $Apache::lonpublisher::metadatafields{$_},
+			      \&Apache::loncommon::languagedescription,
+			      (&Apache::loncommon::languageids)));
+       } else {
+	   $r->print(&Apache::lonpublisher::textfield($lt{$_},'new_'.$_,
+			     $Apache::lonpublisher::metadatafields{$_}));
+       }
+   }
+   if ($ENV{'form.store'}) {
+      my $mfh;
+      unless ($mfh=Apache::File->new('>'.$fn)) {
+            $r->print(
+            '<p><font color=red>'.&mt('Could not write metadata').', '.
+		      &mt('FAIL').'</font>');
+      } else {
+          foreach (sort keys %Apache::lonpublisher::metadatafields) {
+            unless ($_=~/\./) {
+                my $unikey=$_;
+                $unikey=~/^([A-Za-z]+)/;
+                my $tag=$1;
+                $tag=~tr/A-Z/a-z/;
+                print $mfh "\n\<$tag";
+                foreach 
+                  (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
+                    my $value=
+                       $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
+                    $value=~s/\"/\'\'/g;
+                    print $mfh ' '.$_.'="'.$value.'"';
+                }
+                print $mfh '>'.
+        &HTML::Entities::encode($Apache::lonpublisher::metadatafields{$unikey})
+                        .'</'.$tag.'>';
+            }
+	  }
+          $r->print('<p>'.&mt('Wrote Metadata'));
+      }
+    }
+    $r->print(
+ '<br /><input type="submit" name="store" value="'.
+&mt('Store Catalog Information').'"></form></body></html>');
+    return OK;
+  }
 }
 
+# ================================================================= BEGIN Block
+BEGIN {
+# Get columns of MySQL metadata table
+    @columns=&Apache::lonmysql::col_order('metadata');
+}
 1;
 __END__