--- loncom/interface/lonmeta.pm	2001/12/19 17:17:46	1.8
+++ loncom/interface/lonmeta.pm	2003/12/30 20:39:30	1.50
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Metadata display handler
 #
-# $Id: lonmeta.pm,v 1.8 2001/12/19 17:17:46 albertel Exp $
+# $Id: lonmeta.pm,v 1.50 2003/12/30 20:39:30 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -24,108 +24,630 @@
 # /home/httpd/html/adm/gpl.txt
 #
 # http://www.lon-capa.org/
-#
-# (TeX Content Handler
-#
-# 05/29/00,05/30,10/11 Gerd Kortemeyer)
-#
-# 10/19,10/21,10/23,11/27,08/09/01 Gerd Kortemeyer
+
 
 package Apache::lonmeta;
 
 use strict;
 use Apache::Constants qw(:common);
 use Apache::lonnet();
+use Apache::loncommon();
+use Apache::lonhtmlcommon();
+use Apache::lonmsg;
+use Apache::lonpublisher;
+use Apache::lonlocal;
+use Apache::lonmysql;
+use Apache::lonmsg;
+
+# 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);
+    # since "usage" is reserved word in MySQL ...
+    $returnhash{'sequsage'}=$returnhash{'usage'};
+    $returnhash{'sequsage_list'}=$returnhash{'usage_list'};
+
+    return %returnhash;
+}
+
+sub access_count {
+    my ($src,$author,$adomain) = @_;
+    my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
+                                        $author,$src);
+    if (! exists($countdata{$src})) {
+        return &mt('Not Available');
+    } else {
+        return $countdata{$src};
+    }
+}
+
+# ------------------------------------- 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 $alttag; } else 
+                 { return &mt('No information available'); }
+}
+
+# -------------------------------------------------------------- Author display
+
+sub authordisplay {
+    my ($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',
+				   'course_list' => 'Network-wide courses using resource',
+				   'sequsage'      => 'Number of resources using or importing resource',
+				   'sequsage_list' => 'Resources using or importing resource',
+				   'goto'       => 'Number of resources that follow this resource in maps',
+				   'goto_list'  => 'Resources that follow this resource in maps',
+				   'comefrom'   => 'Number of resources that lead up to this resource in maps',
+				   'comefrom_list' => '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>';
+    }
+# 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 $value;
+    }
+# Gradelevel
+    if (($type eq 'lowestgradelevel') ||
+	($type eq 'highestgradelevel')) {
+	return &Apache::loncommon::gradeleveldescription($value);
+    }
+# Only for advance users below
+    unless ($ENV{'user.adv'}) { return '<i>- '.&mt('not displayed').' -</i>' };
+# File
+    if (($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 $value;
+}
+# ============================================== Pretty input of metadata field
+
+sub selectbox {
+    my ($name,$value,$functionref,@idlist)=@_;
+    my $selout='<select name="'.$name.'">';
+    foreach (@idlist) {
+        $selout.='<option value=\''.$_.'\'';
+        if ($_ eq $value) {
+	    $selout.=' selected>'.&{$functionref}($_).'</option>';
+	}
+        else {$selout.='>'.&{$functionref}($_).'</option>';}
+    }
+    return $selout.'</select>';
+}
+
+
+sub prettyinput {
+    my ($type,$value,$fieldname,$formname)=@_;
+# Language
+    if ($type eq 'language') {
+	return &selectbox($fieldname,
+			  $value,
+			  \&Apache::loncommon::languagedescription,
+			  (&Apache::loncommon::languageids));
+    }
+# Copyright
+    if ($type eq 'copyright') {
+	return &selectbox($fieldname,
+			  $value,
+			  \&Apache::loncommon::copyrightdescription,
+			  (&Apache::loncommon::copyrightids));
+    }
+# Gradelevels
+    if (($type eq 'lowestgradelevel') ||
+	($type eq 'highestgradelevel')) {
+	return &Apache::loncommon::select_level_form($value,$fieldname);
+    }
+# Obsolete
+    if ($type eq 'obsolete') {
+	return '<input type="checkbox" name="'.$fieldname.'"'.
+	    ($value?' checked="1"':'').' />'; 
+    }
+# Obsolete replacement file
+    if ($type eq 'obsoletereplacement') {
+	return '<input type="text" name="'.$fieldname.
+	    '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
+	    "('".$formname."','".$fieldname."'".
+	    ",'')\">".&mt('Select').'</a>'; 
+   }
+# Customdistribution file
+    if ($type eq 'customdistributionfile') {
+	return '<input type="text" name="'.$fieldname.
+	    '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
+	    "('".$formname."','".$fieldname."'".
+	    ",'rights')\">".&mt('Select').'</a>'; 
+    }
+# Dates
+    if (($type eq 'creationdate') ||
+	($type eq 'lastrevisiondate')) {
+	return &Apache::lonhtmlcommon::date_setter($formname,
+						   $fieldname,$value);
+    }
+# No pretty input found
+    $value=~s/^\s+//gs;
+    $value=~s/\s+$//gs;
+    $value=~s/\s+/ /gs;
+    $value=~s/\"/\&quod\;/gs;
+    return '<input type="text" name="'.$fieldname.'" size="80" value="'.$value.'" />'; 
+}
 
 # ================================================================ Main Handler
 
 sub handler {
   my $r=shift;
+
+    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 $uri=$r->uri;
-  map {
+  foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
       $content{$_}=&Apache::lonnet::metadata($uri,$_);
-  } split(/\,/,&Apache::lonnet::metadata($uri,'keys'));
-
-# ------------------------------------------------------------------ Hide stuff
-
-  unless ($ENV{'user.adv'}) {
-      map {
-          $content{$_}='<i>- not displayed -</i>';
-      } ('keywords','notes','abstract','subject');
   }
-
 # --------------------------------------------------------------- Render Output
+# displayed url
+    my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
+    $uri=~s/\.meta$//;
+    my $disuri=&Apache::lonnet::clutter($uri);
+    $disuri=&Apache::lonhtmlcommon::crumbs($disuri);
+# version
+    my $currentversion=&Apache::lonnet::getversion($disuri);
+    my $versiondisplay='';
+    if ($thisversion) {
+	$versiondisplay=&mt('Version').': '.$thisversion.
+	    ' ('.&mt('most recent version').': '.
+	    ($currentversion>0?$currentversion:&mt('information not available')).')';
+    } 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 $content{$_};
+    }
 
-my $creationdate=localtime($content{'creationdate'});
-my $lastrevisiondate=localtime($content{'lastrevisiondate'});
-  
   $r->print(<<ENDHEAD);
 <html><head><title>Catalog Information</title></head>
-<body bgcolor="#FFFFFF">
-<h1>Catalog Information</h1>
+$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> $creationdate<br>
-<b>Last Revision Date:</b> $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($content{'copyright'});
   if ($ENV{'user.adv'}) {
-   map {
-      my $name=$_;
-      my $display=&Apache::lonnet::metadata($uri,$name.'.display');
-      unless ($display) { $display=$name; };
-      my $otherinfo='';
-      map {
-          if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
-             $otherinfo.=' '.$_.'='.
-		 &Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
-          }
-      } ('name','part','type','default'); 
-      $r->print('<b>'.$display.':</b> '.$content{$name});
-      if ($otherinfo) {
-         $r->print(' ('.$otherinfo.')');
+# ------------------------------------------------------------ Dynamic Metadata
+      $r->print(
+		'<h3>'.&mt('Dynamic Metadata').' ('.
+		&mt('updated periodically').')</h3>'.&mt('Processing').
+		' ...<br />');
+      $r->rflush();
+      my %items=&fieldnames();
+      my %dynmeta=&dynamicmeta($uri);
+# General Access and Usage Statistics
+      $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4><table cellspacing=2 border=0>');
+      foreach ('count',
+	       'sequsage','sequsage_list',
+	       'comefrom','comefrom_list',
+	       'goto','goto_list',
+	       'course','course_list') {
+	  $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td><td bgcolor="#CCCCCC">'.
+		    &prettyprint($dynmeta{$_})."</td></tr>\n");
+      }
+      $r->print('</table>');
+      if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) {
+# This is an assessment, print assessment data
+	  $r->print(
+		    '<h4>'.&mt('Assessment Statistical Data').'</h4><table cellspacing=2 border=0>');
+	  foreach ('stdno','avetries','difficulty') {
+	      $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td><td bgcolor="#CCCCCC">'.
+			&prettyprint($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') {
+	  $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td><td bgcolor="#CCCCCC">'.
+		    &prettyprint($dynmeta{$_})."</td></tr>\n");
+     }    
+      $r->print('</table>');
+      $uri=~/^\/res\/(\w+)\/(\w+)\//; 
+      if ((($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>'.
+		    &Apache::lonmsg::retrieve_author_res_msg($2,$1,$uri));
+      }
+# ------------------------------------------------------------- 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");
+	  }
       }
-      $r->print("<br>\n");
-   } sort keys %content;
   }
-  $r->print('</body></html>');
-  return OK;
+# ===================================================== End Resource Space Call
+ } else {
+# ===================================================== Construction Space Call
+
+# ----------------------------------------------------------- Set document type
+
+  &Apache::loncommon::content_type($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" name="defaultmeta">
+ENDEDIT
+  $r->print('<script language="JavaScript">'.
+	    &Apache::loncommon::browser_and_searcher_javascript.
+	    '</script>');
+   my %lt=&fieldnames();
+   foreach ('author','title','subject','keywords','abstract','notes',
+            'copyright','customdistributionfile','language','standards',
+	    'lowestgradelevel','highestgradelevel',
+            'obsolete','obsoletereplacement') {
+       $Apache::lonpublisher::metadatafields{$_}=$ENV{'form.new_'.$_};
+       unless ($Apache::lonpublisher::metadatafields{'copyright'}) {
+	   $Apache::lonpublisher::metadatafields{'copyright'}='default';
+       }
+       $r->print('<p>'.$lt{$_}.': '.&prettyinput($_,
+				  $Apache::lonpublisher::metadatafields{$_},
+				  'new_'.$_,'defaultmeta').'</p>');
+   }
+   if ($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__