--- loncom/interface/lonmeta.pm 2000/10/23 13:21:12 1.2 +++ loncom/interface/lonmeta.pm 2002/03/29 18:44:41 1.15 @@ -1,47 +1,148 @@ # The LearningOnline Network with CAPA -# # Metadata display handler # +# $Id: lonmeta.pm,v 1.15 2002/03/29 18:44:41 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. +# +# 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 +# +# /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 Gerd Kortemeyer +# 10/19,10/21,10/23,11/27,08/09/01,12/22,12/24,12/25 Gerd Kortemeyer package Apache::lonmeta; use strict; -use Apache::File; use Apache::Constants qw(:common); -use HTML::TokeParser; +use Apache::lonnet(); +use Apache::loncommon(); +# ----------------------------------------- Fetch and evaluate dynamic metadata -# ================================================= Unpack metadata into a hash - -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; +sub dynamicmeta { + my $url=&Apache::lonnet::declutter(shift); + $url=~s/\.meta$//; + my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//); + my $regexp=&Apache::lonnet::escape($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{$1}.='
'.$evaldata{$_}; + } + } else { + $sum{$1}=''.$evaldata{$_}; + } + } + } + my %returnhash=(); + foreach (keys %cnt) { + if ($listitems{$_} eq 'avg') { + $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0; + } elsif ($listitems{$_} eq 'cnt') { + $returnhash{$_}=$cnt{$_}; + } else { + $returnhash{$_}=$sum{$_}; } } - return %content; + return %returnhash; +} + +# -------------------------------------------------------------- Pretty display + +sub evalgraph { + my $value=shift; + unless ($value) { return ''; } + my $val=int($value*10.+0.5)-10; + my $output=''; + if ($val>=20) { + $output.=''; + } else { + $output.=''. + ''; + } + $output.=''; + if ($val>20) { + $output.=''. + ''; + } else { + $output.=''; + } + $output.='
          ('.$value.')
'; + 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=''; + for (my $i=0;$i<8;$i++) { + if ($val>$i*5) { + $output.=''; + } else { + $output.=''; + } + } + $output.='
   ('.$value.')
'; + return $output; } # ================================================================ Main Handler sub handler { my $r=shift; - my @metacontents; - my %content; + my %content=(); # ----------------------------------------------------------- Set document type @@ -52,37 +153,57 @@ sub handler { # ------------------------------------------------------------------- Read file - { - my $fh=Apache::File->new($r->filename); - @metacontents=<$fh>; + my $uri=$r->uri; + foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) { + $content{$_}=&Apache::lonnet::metadata($uri,$_); } - %content=&unpackagemeta(join("\n",@metacontents),1); +# ------------------------------------------------------------------ Hide stuff + + unless ($ENV{'user.adv'}) { + foreach ('keywords','notes','abstract','subject') { + $content{$_}='- not displayed -'; + } + } # --------------------------------------------------------------- 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(<Catalog Information

Catalog Information

$content{'title'}

-

Author(s): $content{'author'}

-Subject: $content{'subject'}
-Keyword(s): $content{'keywords'}
-Notes: $content{'notes'}
-Abstract: -
$content{'abstract'}
-
-MIME Type: $content{'mime'}
-Language: $content{'language'}
-Creation Date: $creationdate
-Last Revision Date: $lastrevisiondate
-Publisher/Owner: $content{'owner'}
-Copyright/Distribution: $content{'copyright'} -
+

$disuri

+ + + + + + + + + + + + + + + + + + + + + +
Author(s)$content{'author'} 
Subject$content{'subject'} 
Keyword(s)$content{'keywords'} 
Notes$content{'notes'} 
Abstract$content{'abstract'} 
MIME Type$mime ($content{'mime'}) 
Language$language 
Creation Date$creationdate 
+Last Revision Date$lastrevisiondate 
Publisher/Owner$content{'owner'} 
Copyright/Distribution$content{'copyright'} +
ENDHEAD delete($content{'title'}); delete($content{'author'}); @@ -96,11 +217,82 @@ ENDHEAD delete($content{'lastrevisiondate'}); delete($content{'owner'}); delete($content{'copyright'}); - map { - my ($value,$name)=split(/\_\_dis\_\_/,$content{$_}); - unless ($name) { $name=$_; } - $r->print(''.$name.': '.$value.'
'); - } sort keys %content; + if ($ENV{'user.adv'}) { +# ------------------------------------------------------------ Dynamic Metadata + $r->print( + '

Dynamic Metadata (updated periodically)

Processing ...
'); + $r->rflush(); + my %items=( + 'count' => 'Network-wide number of accesses (hits)', + 'course' => 'Network-wide number of courses using resource', + 'usage' => 'Number of resources using or importing resource', + 'clear' => 'Material presented in clear way', + 'depth' => 'Material covered with sufficient depth', + 'helpful' => 'Material is helpful', + 'correct' => 'Material appears to be correct', + 'technical' => 'Resource is technically correct', + 'avetries' => 'Average number of tries till solved', + 'stdno' => 'Total number of students who have worked on this problem', + 'difficulty' => 'Degree of difficulty'); + my %dynmeta=&dynamicmeta($uri); + $r->print( +'

Access and Usage Statistics

'); + foreach ('count','usage','course') { + $r->print( +'\n"); + } + $r->print('
'.$items{$_}.''. +$dynmeta{$_}." 
'); + if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) { + $r->print( +'

Assessment Statistical Data

'); + foreach ('stdno','avetries') { + $r->print( +'\n"); + } + foreach ('difficulty') { + $r->print( +'\n"); + } + $r->print('
'.$items{$_}.''. +$dynmeta{$_}." 
'.$items{$_}.''. +&diffgraph($dynmeta{$_})."
'); + } + $r->print('

Evaluation Data

'); + foreach ('clear','depth','helpful','correct','technical') { + $r->print( +'\n"); + } + $r->print('
'.$items{$_}.''. +&evalgraph($dynmeta{$_})."
'); + $disuri=~/^(\w+)\/(\w+)\//; + if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2)) + || ($ENV{'user.role.ca./'.$1.'/'.$2})) { + $r->print( + '

Evaluation Comments (visible to author and co-authors only)

'. + '
'.$dynmeta{'comments'}.'
'); + } +# ------------------------------------------------------------- All other stuff + $r->print( + '

Additional Metadata (non-standard, parameters, exports)

'); + foreach (sort keys %content) { + my $name=$_; + 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.'.'.$_).'; '; + } + } + $r->print(''.$display.': '.$content{$name}); + if ($otherinfo) { + $r->print(' ('.$otherinfo.')'); + } + $r->print("
\n"); + } + } $r->print(''); return OK; } 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.