--- loncom/interface/lonmeta.pm 2001/12/24 23:01:31 1.12
+++ loncom/interface/lonmeta.pm 2004/04/15 18:06:29 1.72
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Metadata display handler
#
-# $Id: lonmeta.pm,v 1.12 2001/12/24 23:01:31 www Exp $
+# $Id: lonmeta.pm,v 1.72 2004/04/15 18:06:29 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -24,281 +24,793 @@
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
-#
-# (TeX Content Handler
-#
-# 05/29/00,05/30,10/11 Gerd Kortemeyer)
-#
-# 10/19,10/21,10/23,11/27,08/09/01,12/22,12/24 Gerd Kortemeyer
+
package Apache::lonmeta;
use strict;
+use LONCAPA::lonmetadata();
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;
-# ----------------------------------------- Fetch and evaluate dynamic metadata
+# Fetch and evaluate dynamic metadata
sub dynamicmeta {
my $url=&Apache::lonnet::declutter(shift);
$url=~s/\.meta$//;
my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
- my $regexp=&Apache::lonnet::escape($url);
+ my $regexp=$url;
$regexp=~s/(\W)/\\$1/g;
$regexp='___'.$regexp.'___';
- my %evaldata=&Apache::lonnet::dump
- ('resevaldata',$adomain,$aauthor,$regexp);
- my %sum;
- my %cnt;
- my %listitems=('count' => 'add',
- 'course' => 'add',
- 'avetries' => 'avg',
- 'stdno' => 'add',
- 'difficulty' => 'avg',
- 'clear' => 'avg',
- 'technical' => 'avg',
- 'helpful' => 'avg',
- 'correct' => 'avg',
- 'depth' => 'avg',
- 'comments' => 'app',
- 'usage' => 'cnt'
- );
- foreach (keys %evaldata) {
- $_=~/___(\w+)$/;
- if (defined($cnt{$1})) { $cnt{$1}++; } else { $cnt{$1}=1; }
- unless ($listitems{$1} eq 'app') {
- if (defined($sum{$1})) {
- $sum{$1}+=$evaldata{$_};
- } else {
- $sum{$1}=$evaldata{$_};
- }
- } else {
- if (defined($sum{$1})) {
- if ($evaldata{$_}) {
- $sum{$1}.='<hr>'.$evaldata{$_};
- }
- } else {
- $sum{$1}=''.$evaldata{$_};
- }
- }
+ my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
+ $aauthor,$regexp);
+ my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
+ my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
+ \%DynamicData);
+ #
+ # Deal with 'count' separately
+ $Data{'count'} = &access_count($url,$aauthor,$adomain);
+ #
+ # Debugging code I will probably need later
+ if (0) {
+ &Apache::lonnet::logthis('Dynamic Metadata');
+ while(my($k,$v)=each(%Data)){
+ &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
+ }
+ &Apache::lonnet::logthis('-------------------');
}
- my %returnhash=();
- foreach (keys %cnt) {
- if ($listitems{$_} eq 'avg') {
- $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0;
- } elsif ($listitems{$_} eq 'cnt') {
- $returnhash{$_}=$cnt{$_};
- } else {
- $returnhash{$_}=$sum{$_};
- }
+ return %Data;
+}
+
+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};
}
- return %returnhash;
}
-# -------------------------------------------------------------- Pretty display
+# 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;
+ if (! $value) {
+ return '';
+ }
my $val=int($value*10.+0.5)-10;
- my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
+ my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
if ($val>=20) {
- $output.='<td width=20 bgcolor="#555555">  </td>';
+ $output.='<td width="20" bgcolor="#555555">  </td>';
} else {
- $output.='<td width='.($val).' bgcolor="#555555"> </td>'.
- '<td width='.(20-$val).' bgcolor="#FF3333"> </td>';
+ $output.='<td width="'.($val).'" bgcolor="#555555"> </td>'.
+ '<td width="'.(20-$val).'" bgcolor="#FF3333"> </td>';
}
$output.='<td bgcolor="#FFFF33"> </td>';
if ($val>20) {
- $output.='<td width='.($val-20).' bgcolor="#33FF33"> </td>'.
- '<td width='.(40-$val).' bgcolor="#555555"> </td>';
+ $output.='<td width="'.($val-20).'" bgcolor="#33FF33"> </td>'.
+ '<td width="'.(40-$val).'" bgcolor="#555555"> </td>';
} else {
- $output.='<td width=20 bgcolor="#555555">  </td>';
+ $output.='<td width="20" bgcolor="#555555">  </td>';
}
- $output.='<td> ('.$value.') </td></tr></table>';
+ $output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
return $output;
}
sub diffgraph {
my $value=shift;
+ if (! $value) {
+ return '';
+ }
my $val=int(40.0*$value+0.5);
- my @colors=('#FF3333','#EEBB33','#BBEE33','#33FF33',
- '#33FF33','#BBEE33','#EEBB33','#FF3333');
- my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
+ 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].'"> </td>';
+ $output.='<td width="5" bgcolor="'.$colors[$i].'"> </td>';
} else {
- $output.='<td width=5 bgcolor="#555555"> </td>';
+ $output.='<td width="5" bgcolor="#555555"> </td>';
}
}
- $output.='<td> ('.$value.') </td></tr></table>';
+ $output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
return $output;
}
-# ================================================================ Main Handler
-sub handler {
- my $r=shift;
- my %content=();
+# The field names
+sub fieldnames {
+ return &Apache::lonlocal::texthash
+ (
+ 'title' => 'Title',
+ 'author' =>'Author(s)',
+ 'authorspace' => 'Author Space',
+ 'modifyinguser' => 'Last Modifying User',
+ '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'
+ );
+}
-# ----------------------------------------------------------- Set document type
+# Pretty printing of metadata field
- $r->content_type('text/html');
- $r->send_http_header;
+sub prettyprint {
+ my ($type,$value)=@_;
+ if (! defined($value)) {
+ return ' ';
+ }
+ # Title
+ if ($type eq 'title') {
+ return '<font size="+1" face="arial">'.$value.'</font>';
+ }
+ # Dates
+ if (($type eq 'creationdate') ||
+ ($type eq 'lastrevisiondate')) {
+ return ($value?&Apache::lonlocal::locallocaltime(
+ &Apache::lonmysql::unsqltime($value)):
+ &mt('not available'));
+ }
+ # 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).'" /> '.
+ &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
+ if (! $ENV{'user.adv'}) {
+ return '<i>- '.&mt('not displayed').' -</i>';
+ }
+ # File
+ if (($type eq 'customdistributionfile') ||
+ ($type eq 'obsoletereplacement') ||
+ ($type eq 'goto_list') ||
+ ($type eq 'comefrom_list') ||
+ ($type eq 'sequsage_list')) {
+ return join('<br />',map {
+ my $url = &Apache::lonnet::clutter($_);
+ my $title = &Apache::lonnet::gettitle($url);
+ if ($title eq '') {
+ $title = 'Untitled';
+ if ($url =~ /\.sequence$/) {
+ $title .= ' Sequence';
+ } elsif ($url =~ /\.page$/) {
+ $title .= ' Page';
+ } elsif ($url =~ /\.problem$/) {
+ $title .= ' Problem';
+ } elsif ($url =~ /\.html$/) {
+ $title .= ' HTML document';
+ } elsif ($url =~ m:/syllabus$:) {
+ $title .= ' Syllabus';
+ }
+ }
+ $_ = '<b>'.$title.'</b> '.
+ '<a href="'.$url.'" target="preview">'.
+ '<font size="-1">'.$url.'</font>'.
+ '</a>'
+ } 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/) {
+ my @Courses = split(/\s*\,\s*/,$value);
+ my $Str;
+ foreach my $course (@Courses) {
+ my %courseinfo = &Apache::lonnet::coursedescription($course);
+ if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
+ next;
+ }
+ if ($Str ne '') { $Str .= '<br />'; }
+ $Str .= '<a href="/public/'.$courseinfo{'domain'}.'/'.
+ $courseinfo{'num'}.'/syllabus" target="preview">'.
+ $courseinfo{'description'}.'</a>';
+ }
+ return $Str;
+ }
+ # No pretty print found
+ return $value;
+}
- return OK if $r->header_only;
-
-# ------------------------------------------------------------------- Read file
-
- my $uri=$r->uri;
- map {
- $content{$_}=&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
-
-my $creationdate=localtime($content{'creationdate'});
-my $lastrevisiondate=localtime($content{'lastrevisiondate'});
-my $language=&Apache::loncommon::languagedescription($content{'language'});
-my $mime=&Apache::loncommon::filedescription($content{'mime'});
-my $disuri=&Apache::lonnet::declutter($uri);
- $disuri=~s/\.meta$//;
- $r->print(<<ENDHEAD);
-<html><head><title>Catalog Information</title></head>
-<body bgcolor="#FFFFFF">
-<h1>Catalog Information</h1>
-<h2>$content{'title'}</h2>
-<h3><tt>$disuri</tt></h3>
-<table cellspacing=2 border=0>
-<tr><td bgcolor='#AAAAAA'>Author(s)</td>
-<td bgcolor="#CCCCCC">$content{'author'} </td></tr>
-<tr><td bgcolor='#AAAAAA'>Subject</td>
-<td bgcolor="#CCCCCC">$content{'subject'} </td></tr>
-<tr><td bgcolor='#AAAAAA'>Keyword(s)</td>
-<td bgcolor="#CCCCCC">$content{'keywords'} </td></tr>
-<tr><td bgcolor='#AAAAAA'>Notes</td>
-<td bgcolor="#CCCCCC">$content{'notes'} </td></tr>
-<tr><td bgcolor='#AAAAAA'>Abstract</td>
-<td bgcolor="#CCCCCC">$content{'abstract'} </td></tr>
-<tr><td bgcolor='#AAAAAA'>MIME Type</td>
-<td bgcolor="#CCCCCC">$mime ($content{'mime'}) </td></tr>
-<tr><td bgcolor='#AAAAAA'>Language</td>
-<td bgcolor="#CCCCCC">$language </td></tr>
-<tr><td bgcolor='#AAAAAA'>Creation Date</td>
-<td bgcolor="#CCCCCC">$creationdate </td></tr>
-<tr><td bgcolor='#AAAAAA'>
-Last Revision Date</td><td bgcolor="#CCCCCC">$lastrevisiondate </td></tr>
-<tr><td bgcolor='#AAAAAA'>Publisher/Owner</td>
-<td bgcolor="#CCCCCC">$content{'owner'} </td></tr>
-<tr><td bgcolor='#AAAAAA'>Copyright/Distribution</td>
-<td bgcolor="#CCCCCC">$content{'copyright'}
-</table>
-ENDHEAD
- delete($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'}) {
-# ------------------------------------------------------------ Dynamic Metadata
- $r->print('<h3>Dynamic Metadata (updated periodically)</h3>');
- my %items=(
- 'count' => 'Network-wide number of accesses (hits)',
- 'course' => 'Network-wide number of courses using resource',
- 'usage' => 'Number of resources using or importing resource',
- 'clear' => 'Material presented in clear way',
- 'depth' => 'Material covered with sufficient depth',
- 'helpful' => 'Material is helpful',
- 'correct' => 'Material appears to be correct',
- 'technical' => 'Resource is technically correct',
- 'avetries' => 'Average number of tries till solved',
- 'stdno' => 'Total number of students who have worked on this problem',
- 'difficulty' => 'Degree of difficulty');
- my %dynmeta=&dynamicmeta($uri);
- $r->print(
-'</table><h4>Access and Usage Statistics</h4><table cellspacing=2 border=0>');
- foreach ('count','usage','course') {
- $r->print(
-'<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
-$dynmeta{$_}." </td></tr>\n");
- }
- $r->print('</table>');
- if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) {
- $r->print(
-'<h4>Assessment Statistical Data</h4><table cellspacing=2 border=0>');
- foreach ('stdno','avetries') {
- $r->print(
-'<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
-$dynmeta{$_}." </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>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})) {
- $r->print(
- '<h4>Evaluation Comments (visible to author and co-authors only)</h4>'.
- '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
- }
-# ------------------------------------------------------------- All other stuff
- $r->print(
- '<h3>Additional Metadata (non-standard, parameters, exports)</h3>');
- foreach (sort keys %content) {
- 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.')');
- }
- $r->print("<br>\n");
- }
- }
- $r->print('</body></html>');
- return OK;
+# Pretty input of metadata field
+sub direct {
+ return shift;
}
-1;
-__END__
+sub selectbox {
+ my ($name,$value,$functionref,@idlist)=@_;
+ if (! defined($functionref)) {
+ $functionref=\&direct;
+ }
+ my $selout='<select name="'.$name.'">';
+ foreach (@idlist) {
+ $selout.='<option value=\''.$_.'\'';
+ if ($_ eq $value) {
+ $selout.=' selected>'.&{$functionref}($_).'</option>';
+ }
+ else {$selout.='>'.&{$functionref}($_).'</option>';}
+ }
+ return $selout.'</select>';
+}
+sub relatedfield {
+ my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
+ if (! $relatedsearchflag) {
+ return '';
+ }
+ if (! defined($relatedsep)) {
+ $relatedsep=' ';
+ }
+ if (! $show) {
+ return $relatedsep.' ';
+ }
+ return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
+ ($relatedvalue?' checked="1"':'').' />';
+}
+sub prettyinput {
+ my ($type,$value,$fieldname,$formname,
+ $relatedsearchflag,$relatedsep,$relatedvalue)=@_;
+ # Language
+ if ($type eq 'language') {
+ return &selectbox($fieldname,
+ $value,
+ \&Apache::loncommon::languagedescription,
+ (&Apache::loncommon::languageids)).
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # Copyright
+ if ($type eq 'copyright') {
+ return &selectbox($fieldname,
+ $value,
+ \&Apache::loncommon::copyrightdescription,
+ (&Apache::loncommon::copyrightids)).
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # Gradelevels
+ if (($type eq 'lowestgradelevel') ||
+ ($type eq 'highestgradelevel')) {
+ return &Apache::loncommon::select_level_form($value,$fieldname).
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # Obsolete
+ if ($type eq 'obsolete') {
+ return '<input type="checkbox" name="'.$fieldname.'"'.
+ ($value?' checked="1"':'').' />'.
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # Obsolete replacement file
+ if ($type eq 'obsoletereplacement') {
+ return '<input type="text" name="'.$fieldname.
+ '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
+ "('".$formname."','".$fieldname."'".
+ ",'')\">".&mt('Select').'</a>'.
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # Customdistribution file
+ if ($type eq 'customdistributionfile') {
+ return '<input type="text" name="'.$fieldname.
+ '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
+ "('".$formname."','".$fieldname."'".
+ ",'rights')\">".&mt('Select').'</a>'.
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # Dates
+ if (($type eq 'creationdate') ||
+ ($type eq 'lastrevisiondate')) {
+ return
+ &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
+ &relatedfield(0,$relatedsearchflag,$relatedsep);
+ }
+ # 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="'.$value.'" />'.
+ &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
+ $relatedvalue);
+}
+
+# Main Handler
+sub handler {
+ my $r=shift;
+ #
+ my $uri=$r->uri;
+ #
+ # Check to see if this server is overloaded
+ my $loaderror=&Apache::lonnet::overloaderror($r);
+ if ($loaderror) {
+ return $loaderror;
+ }
+ #
+ # Check to see if original resource server is overloaded
+ my ($resdomain,$resuser)=
+ (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
+ $loaderror=&Apache::lonnet::overloaderror
+ ($r,&Apache::lonnet::homeserver($resuser,$resdomain));
+ if ($loaderror) {
+ return $loaderror;
+ }
+ #
+ # Set document type
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ return OK if $r->header_only;
+ #
+ $r->print('<html><head><title>'.
+ 'Catalog Information'.
+ '</title></head>');
+ if ($uri=~m:/adm/bombs/(.*)$:) {
+ $r->print(&Apache::loncommon::bodytag('Error Messages'));
+ # Looking for all bombs?
+ &report_bombs($r,$uri);
+ } elsif ($uri=~/^\/\~/) {
+ # Construction space
+ $r->print(&Apache::loncommon::bodytag
+ ('Edit Catalog Information','','','',$resdomain));
+ &present_editable_metadata($r,$uri);
+ } else {
+ $r->print(&Apache::loncommon::bodytag
+ ('Catalog Information','','','',$resdomain));
+ &present_uneditable_metadata($r,$uri);
+ }
+ $r->print('</body></html>');
+ return OK;
+}
+#####################################################
+#####################################################
+### ###
+### Report Bombs ###
+### ###
+#####################################################
+#####################################################
+sub report_bombs {
+ my ($r,$uri) = @_;
+ # Set document type
+ $uri =~ s:/adm/bombs/::;
+ $uri = &Apache::lonnet::declutter($uri);
+ $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
+ my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
+ if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
+ my %brokenurls =
+ &Apache::lonmsg::all_url_author_res_msg($author,$domain);
+ foreach (sort(keys(%brokenurls))) {
+ if ($_=~/^\Q$uri\E/) {
+ $r->print
+ ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
+ &Apache::lonmsg::retrieve_author_res_msg($_).
+ '<hr />');
+ }
+ }
+ } else {
+ $r->print(&mt('Not authorized'));
+ }
+ return;
+}
+#####################################################
+#####################################################
+### ###
+### Uneditable Metadata Display ###
+### ###
+#####################################################
+#####################################################
+sub present_uneditable_metadata {
+ my ($r,$uri) = @_;
+ #
+ my %content=();
+ # Read file
+ foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
+ $content{$_}=&Apache::lonnet::metadata($uri,$_);
+ }
+ # Render Output
+ # displayed url
+ my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
+ $uri=~s/\.meta$//;
+ my $disuri=&Apache::lonnet::clutter($uri);
+ # 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;
+ }
+ # crumbify displayed URL uri target prefix form size
+ $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
+ $disuri =~ s:<br />::g;
+ # 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 $title = $content{'title'};
+ if (! defined($title)) {
+ $title = 'Untitled Resource';
+ }
+ foreach ('title',
+ 'author',
+ 'subject',
+ 'keywords',
+ 'notes',
+ 'abstract',
+ 'lowestgradelevel',
+ 'highestgradelevel',
+ 'standards',
+ 'mime',
+ 'language',
+ 'creationdate',
+ 'lastrevisiondate',
+ 'owner',
+ 'copyright',
+ 'customdistributionfile',
+ 'obsolete',
+ 'obsoletereplacement') {
+ $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
+ '</td><td bgcolor="#CCCCCC">'.
+ &prettyprint($_,$content{$_}).'</td></tr>';
+ delete $content{$_};
+ }
+ #
+ $r->print(<<ENDHEAD);
+<h2>$title</h2>
+<p>
+$disuri<br />
+$obsoletewarning
+$versiondisplay
+</p>
+<table cellspacing=2 border=0>
+$table
+</table>
+ENDHEAD
+ if ($ENV{'user.adv'}) {
+ &print_dynamic_metadata($r,$uri,\%content);
+ }
+ return;
+}
+sub print_dynamic_metadata {
+ my ($r,$uri,$content) = @_;
+ #
+ my %content = %$content;
+ my %lt=&fieldnames();
+ #
+ my $description = 'Dynamic Metadata (updated periodically)';
+ $r->print('<h3>'.&mt($description).'</h3>'.
+ &mt('Processing'));
+ $r->rflush();
+ my %items=&fieldnames();
+ my %dynmeta=&dynamicmeta($uri);
+ #
+ # General Access and Usage Statistics
+ if (exists($dynmeta{'count'}) ||
+ exists($dynmeta{'sequsage'}) ||
+ exists($dynmeta{'comefrom'}) ||
+ exists($dynmeta{'goto'}) ||
+ exists($dynmeta{'course'})) {
+ $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>');
+ } else {
+ $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
+ }
+ #
+ # Assessment statistics
+ if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/ &&
+ (exists($dynmeta{'stdno'}) ||
+ exists($dynmeta{'avetries'}) ||
+ exists($dynmeta{'difficulty'}))) {
+ # 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{$_}.'</td>'.
+ '<td bgcolor="#CCCCCC">'.
+ &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).'</td>'.
+ "</tr>\n");
+ }
+ $r->print('</table>');
+ } else {
+ $r->print('<h4>'.&mt('No Assessment Statistical Data is available for this resource').'</h4>');
+ }
+ if (exists($dynmeta{'clear'}) ||
+ exists($dynmeta{'depth'}) ||
+ exists($dynmeta{'helpful'}) ||
+ exists($dynmeta{'correct'}) ||
+ exists($dynmeta{'technical'})){
+ $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>');
+ } else {
+ $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
+ }
+ $uri=~/^\/res\/(\w+)\/(\w+)\//;
+ if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2))
+ || ($ENV{'user.role.ca./'.$1.'/'.$2})) {
+ if (exists($dynmeta{'comments'})) {
+ $r->print('<h4>'.&mt('Evaluation Comments').' ('.
+ &mt('visible to author and co-authors only').
+ ')</h4>'.
+ '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
+ } else {
+ $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
+ }
+ my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
+ if (defined($bombs) && $bombs ne '') {
+ $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
+ &mt('visible to author and co-authors only').')'.
+ '</h4>'.$bombs);
+ } else {
+ $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
+ }
+ }
+ #
+ # All other stuff
+ $r->print('<h3>'.
+ &mt('Additional Metadata (non-standard, parameters, exports)').
+ '</h3>');
+ foreach (sort(keys(%content))) {
+ my $name=$_;
+ if ($name!~/\.display$/) {
+ my $display=&Apache::lonnet::metadata($uri,
+ $name.'.display');
+ if (! $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.')');
+ }
+ $r->print("<br />\n");
+ }
+ }
+ return;
+}
+#####################################################
+#####################################################
+### ###
+### Editable metadata display ###
+### ###
+#####################################################
+#####################################################
+sub present_editable_metadata {
+ my ($r,$uri) = @_;
+ # Construction Space Call
+ # Header
+ my $disuri=$uri;
+ my $fn=&Apache::lonnet::filelocation('',$uri);
+ $disuri=~s/^\/\~/\/priv\//;
+ $disuri=~s/\.meta$//;
+ my $target=$uri;
+ $target=~s/^\/\~/\/res\/$ENV{'request.role.domain'}\//;
+ $target=~s/\.meta$//;
+ my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
+ if ($bombs) {
+ if ($ENV{'form.delmsg'}) {
+ if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
+ $bombs=&mt('Messages deleted.');
+ } else {
+ $bombs=&mt('Error deleting messages');
+ }
+ }
+ my $del=&mt('Delete Messages');
+ $r->print(<<ENDBOMBS);
+<h1>$disuri</h1>
+<form method="post" name="defaultmeta">
+<input type="submit" name="delmsg" value="$del" />
+<br />$bombs
+ENDBOMBS
+ } else {
+ my $displayfile='Catalog Information for '.$disuri;
+ if ($disuri=~/\/default$/) {
+ my $dir=$disuri;
+ $dir=~s/default$//;
+ $displayfile=
+ &mt('Default Cataloging Information for Directory').' '.
+ $dir;
+ }
+ my $bodytag=
+ &Apache::loncommon::bodytag('Edit Catalog Information');
+ %Apache::lonpublisher::metadatafields=();
+ %Apache::lonpublisher::metadatakeys=();
+ &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile($fn));
+ $r->print(<<ENDEDIT);
+<html><head><title>Edit Catalog Information</title></head>
+$bodytag
+<h1>$displayfile</h1>
+<form method="post" name="defaultmeta">
+ENDEDIT
+ $r->print('<script language="JavaScript">'.
+ &Apache::loncommon::browser_and_searcher_javascript.
+ '</script>');
+ my %lt=&fieldnames();
+ foreach ('author','title','subject','keywords','abstract','notes',
+ 'copyright','customdistributionfile','language',
+ 'standards',
+ 'lowestgradelevel','highestgradelevel',
+ 'obsolete','obsoletereplacement') {
+ if (defined($ENV{'form.new_'.$_})) {
+ $Apache::lonpublisher::metadatafields{$_}=
+ $ENV{'form.new_'.$_};
+ }
+ if (! $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 $mfh;
+ if (! ($mfh=Apache::File->new('>'.$fn))) {
+ $r->print('<p><font color=red>'.
+ &mt('Could not write metadata').', '.
+ &mt('FAIL').'</font>');
+ } else {
+ foreach (sort keys %Apache::lonpublisher::metadatafields) {
+ next if ($_ =~ /\./);
+ 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').'">');
+ }
+ $r->print('</form>');
+ return;
+}
+1;
+__END__