--- loncom/interface/lonmeta.pm 2003/02/18 22:39:18 1.26
+++ loncom/interface/lonmeta.pm 2005/10/25 01:23:47 1.116
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Metadata display handler
#
-# $Id: lonmeta.pm,v 1.26 2003/02/18 22:39:18 www Exp $
+# $Id: lonmeta.pm,v 1.116 2005/10/25 01:23:47 banghart Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -17,31 +17,112 @@
# 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
+# 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)
-#
-# 10/19,10/21,10/23,11/27,08/09/01,12/22,12/24,12/25 Gerd Kortemeyer
+
package Apache::lonmeta;
use strict;
+use LONCAPA::lonmetadata();
use Apache::Constants qw(:common);
-use Apache::lonnet();
+use Apache::lonnet;
use Apache::loncommon();
+use Apache::lonhtmlcommon();
use Apache::lonmsg;
use Apache::lonpublisher;
+use Apache::lonlocal;
+use Apache::lonmysql;
+use Apache::lonmsg;
+
+
+############################################################
+############################################################
+##
+## &get_dynamic_metadata_from_sql($url)
+##
+## Queries sql database for dynamic metdata
+## Returns a hash of hashes, with keys of urls which match $url
+## Returned fields are given below.
+##
+## Examples:
+##
+## %DynamicMetadata = &Apache::lonmeta::get_dynmaic_metadata_from_sql
+## ('/res/msu/korte/');
+##
+## $DynamicMetadata{'/res/msu/korte/example.problem'}->{$field}
+##
+############################################################
+############################################################
+sub get_dynamic_metadata_from_sql {
+ my ($url) = shift();
+ my ($authordom,$author)=($url=~m:^/res/(\w+)/(\w+)/:);
+ if (! defined($authordom)) {
+ $authordom = shift();
+ }
+ if (! defined($author)) {
+ $author = shift();
+ }
+ if (! defined($authordom) || ! defined($author)) {
+ return ();
+ }
+ my @Fields = ('url','count','course',
+ 'goto','goto_list',
+ 'comefrom','comefrom_list',
+ 'sequsage','sequsage_list',
+ 'stdno','stdno_list',
+ 'dependencies',
+ 'avetries','avetries_list',
+ 'difficulty','difficulty_list',
+ 'disc','disc_list',
+ 'clear','technical','correct',
+ 'helpful','depth');
+ #
+ my $query = 'SELECT '.join(',',@Fields).
+ ' FROM metadata WHERE url LIKE "'.$url.'%"';
+ my $server = &Apache::lonnet::homeserver($author,$authordom);
+ my $reply = &Apache::lonnet::metadata_query($query,undef,undef,
+ ,[$server]);
+ return () if (! defined($reply) || ref($reply) ne 'HASH');
+ my $filename = $reply->{$server};
+ if (! defined($filename) || $filename =~ /^error/) {
+ return ();
+ }
+ my $max_time = time + 10; # wait 10 seconds for results at most
+ my %ReturnHash;
+ #
+ # Look for results
+ my $finished = 0;
+ while (! $finished && time < $max_time) {
+ my $datafile=$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename;
+ if (! -e "$datafile.end") { next; }
+ my $fh;
+ if (!($fh=Apache::File->new($datafile))) { next; }
+ while (my $result = <$fh>) {
+ chomp($result);
+ next if (! $result);
+ my @Data =
+ map {
+ &Apache::lonnet::unescape($_);
+ } split(',',$result);
+ my $url = $Data[0];
+ for (my $i=0;$i<=$#Fields;$i++) {
+ $ReturnHash{$url}->{$Fields[$i]}=$Data[$i];
+ }
+ }
+ $finished = 1;
+ }
+ #
+ return %ReturnHash;
+}
-# ----------------------------------------- Fetch and evaluate dynamic metadata
+# Fetch and evaluate dynamic metadata
sub dynamicmeta {
my $url=&Apache::lonnet::declutter(shift);
$url=~s/\.meta$//;
@@ -51,383 +132,1015 @@ sub dynamicmeta {
$regexp='___'.$regexp.'___';
my %evaldata=&Apache::lonnet::dump('nohist_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 {
- $returnhash{$_}=$sum{$_};
- }
+ 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('-------------------');
}
- return %returnhash;
+ return %Data;
}
-# ------------------------------------- Try to make an alt tag if there is none
+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');
+ &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 $alttag; } else
- { return 'No information available'; }
+ if ($alttag) {
+ return $alttag;
+ } else {
+ return &mt('No information available');
+ }
}
-# -------------------------------------------------------------- Pretty display
+# Author display
+sub authordisplay {
+ my ($aname,$adom)=@_;
+ return &Apache::loncommon::aboutmewrapper
+ (&Apache::loncommon::plainname($aname,$adom),
+ $aname,$adom,'preview').' ['.$aname.'@'.$adom.']';
+}
+# Pretty display
sub evalgraph {
my $value=shift;
- unless ($value) { return ''; }
+ if (! $value) {
+ return '';
+ }
my $val=int($value*10.+0.5)-10;
- my $output='';
+ my $output='';
if ($val>=20) {
- $output.='  | ';
+ $output.='  | ';
} else {
- $output.=' | '.
- ' | ';
+ $output.=' | '.
+ ' | ';
}
$output.=' | ';
if ($val>20) {
- $output.=' | '.
- ' | ';
+ $output.=' | '.
+ ' | ';
} else {
- $output.='  | ';
+ $output.='  | ';
}
- $output.=' ('.$value.') |
';
+ $output.=' ('.sprintf("%5.2f",$value).') |
';
return $output;
}
sub diffgraph {
my $value=shift;
- unless ($value) { return ''; }
+ if (! $value) {
+ return '';
+ }
my $val=int(40.0*$value+0.5);
my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
'#BBDD33','#CCCC33','#DDBB33','#EEAA33');
- my $output='';
+ my $output='';
for (my $i=0;$i<8;$i++) {
if ($val>$i*5) {
- $output.=' | ';
+ $output.=' | ';
} else {
- $output.=' | ';
+ $output.=' | ';
}
}
- $output.=' ('.$value.') |
';
+ $output.=' ('.sprintf("%3.2f",$value).') |
';
return $output;
}
-# ================================================================ Main Handler
-sub handler {
- my $r=shift;
+# The field names
+sub fieldnames {
+ my $file_type=shift;
+ my %fields =
+ ('title' => 'Title',
+ 'author' =>'Author(s)',
+ 'authorspace' => 'Author Space',
+ 'modifyinguser' => 'Last Modifying User',
+ 'subject' => 'Subject',
+ 'keywords' => 'Keyword(s)',
+ 'notes' => 'Notes',
+ 'abstract' => 'Abstract',
+ 'lowestgradelevel' => 'Lowest Grade Level',
+ 'highestgradelevel' => 'Highest Grade Level');
+ if (! defined($file_type) || $file_type ne 'portfolio') {
+ %fields =
+ (%fields,
+ 'domain' => 'Domain',
+ 'standards' => 'Standards',
+ 'mime' => 'MIME Type',
+ 'language' => 'Language',
+ 'creationdate' => 'Creation Date',
+ 'lastrevisiondate' => 'Last Revision Date',
+ 'owner' => 'Publisher/Owner',
+ 'copyright' => 'Copyright/Distribution',
+ 'customdistributionfile' => 'Custom Distribution File',
+ 'sourceavail' => 'Source Available',
+ 'sourcerights' => 'Source Custom Distribution File',
+ 'obsolete' => 'Obsolete',
+ 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
+ 'count' => 'Network-wide number of accesses (hits)',
+ 'course' => 'Network-wide number of courses using resource',
+ 'course_list' => 'Network-wide courses using resource',
+ 'sequsage' => 'Number of resources using or importing resource',
+ 'sequsage_list' => 'Resources using or importing resource',
+ 'goto' => 'Number of resources that follow this resource in maps',
+ 'goto_list' => 'Resources that follow this resource in maps',
+ 'comefrom' => 'Number of resources that lead up to this resource in maps',
+ 'comefrom_list' => 'Resources that lead up to this resource in maps',
+ 'clear' => 'Material presented in clear way',
+ 'depth' => 'Material covered with sufficient depth',
+ 'helpful' => 'Material is helpful',
+ 'correct' => 'Material appears to be correct',
+ 'technical' => 'Resource is technically correct',
+ 'avetries' => 'Average number of tries till solved',
+ 'stdno' => 'Total number of students who have worked on this problem',
+ 'difficulty' => 'Degree of difficulty',
+ 'disc' => 'Degree of discrimination',
+ 'dependencies' => 'Resources used by this resource',
+ );
+ }
+ return &Apache::lonlocal::texthash(%fields);
+}
+
+sub select_course {
+ my ($r)=@_;
+ my %courses;
+ foreach my $key (keys (%env)) {
+ if ($key =~ m/\.metadata\./) {
+ $key =~ m/^course\.(.+)(\.metadata.+$)/;
+ my $course = $1;
+ my $coursekey = 'course.'.$course.'.description';
+ my $value = $env{$coursekey};
+ $courses{$coursekey} = $value;
+ }
+ }
+ $r->print('Course Related Meta-Data
');
+ $r->print('