# The LearningOnline Network with CAPA
# Metadata display handler
#
# $Id: lonmeta.pm,v 1.257 2023/11/07 21:31:11 raeburn 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/
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;
use LONCAPA qw(:DEFAULT :match);
sub get_dynamic_metadata_from_sql {
my ($url) = shift();
my ($authordom,$author)=($url=~m{^/res/($match_domain)/($match_username)/});
if (! defined($authordom)) {
$authordom = shift();
}
if (! defined($author)) {
$author = shift();
}
if (! defined($authordom) || ! defined($author)) {
return ();
}
my $query = 'SELECT * FROM metadata WHERE url LIKE "'.$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 (! $result);
my %hash=&LONCAPA::lonmetadata::metadata_col_to_hash('metadata',
map { &unescape($_) } split(/\,/,$result));
foreach my $key (keys(%hash)) {
$ReturnHash{$hash{'url'}}->{$key}=$hash{$key};
}
}
$finished = 1;
}
#
return %ReturnHash;
}
# Fetch and evaluate dynamic metadata
sub dynamicmeta {
my $url=&Apache::lonnet::declutter(shift);
$url=~s/\.meta$//;
my ($adomain,$aauthor)=($url=~/^($match_domain)\/($match_username)\//);
my $regexp=$url;
$regexp=~s/(\W)/\\$1/g;
$regexp='___'.$regexp.'___';
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('-------------------');
}
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};
}
}
# 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 $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
if ($val>=20) {
$output.='<td width="20" bgcolor="#555555">'.(' ' x2).'</td>';
} else {
$output.='<td width="'.($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>';
} else {
$output.='<td width="20" bgcolor="#555555">'.(' ' x2).'</td>';
}
$output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
return $output;
}
sub diffgraph {
my $value=shift;
if (! $value) {
return '';
}
my $val=int(40.0*$value+0.5);
my @colors=('#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>';
} else {
$output.='<td width="5" bgcolor="#555555"> </td>';
}
}
$output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
return $output;
}
# The field names
sub fieldnames {
my $file_type=shift;
my %fields =
('title' => 'Title',
'author' =>'Author(s)',
'authorspace' => 'Author Space',
'modifyinguser' => 'Last Modifying User',
'subject' => 'Subject',
'standards' => 'Standards',
'keywords' => 'Keyword(s)',
'notes' => 'Notes',
'abstract' => 'Abstract',
'lowestgradelevel' => 'Lowest Grade Level',
'highestgradelevel' => 'Highest Grade Level');
if ( !defined($file_type) || ($file_type ne 'portfolio' && $file_type ne 'groups') ) {
%fields =
(%fields,
'domain' => 'Domain',
'mime' => 'MIME Type',
'language' => 'Language',
'creationdate' => 'Creation Date',
'lastrevisiondate' => 'Last Revision Date',
'owner' => 'Publisher/Owner',
'copyright' => 'Copyright/Distribution',
'customdistributionfile' => 'Custom Distribution File',
'sourceavail' => 'Source Available',
'sourcerights' => 'Source Custom Distribution File',
'obsolete' => 'Obsolete',
'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
'count' => 'Network-wide number of accesses (hits)',
'course' => 'Network-wide number of courses using resource',
'course_list' => 'Network-wide courses using resource',
'sequsage' => 'Number of resources using or importing resource',
'sequsage_list' => 'Resources using or importing resource',
'goto' => 'Number of resources that follow this resource in maps',
'goto_list' => 'Resources that follow this resource in maps',
'comefrom' => 'Number of resources that lead up to this resource in maps',
'comefrom_list' => 'Resources that lead up to this resource in maps',
'clear' => 'Material presented in clear way',
'depth' => 'Material covered with sufficient depth',
'helpful' => 'Material is helpful',
'correct' => 'Material appears to be correct',
'technical' => 'Resource is technically correct',
'avetries' => 'Average number of tries till solved',
'stdno' => 'Statistics calculated for number of students',
'difficulty' => 'Degree of difficulty',
'disc' => 'Degree of discrimination',
'dependencies' => 'Resources used by this resource',
);
}
return &Apache::lonlocal::texthash(%fields);
}
sub portfolio_linked_path {
my ($path,$group,$port_path) = @_;
my $start = 'portfolio';
if ($group) {
$start = "groups/$group/".$start;
}
my %anchor_fields = (
'selectfile' => $start,
'currentpath' => '/'
);
my $result = &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$start);
my $fullpath = '/';
my (undef,@tree) = split('/',$path);
my $filename = pop(@tree);
foreach my $dir (@tree) {
$fullpath .= $dir.'/';
$result .= '/';
my %anchor_fields = (
'selectfile' => $dir,
'currentpath' => $fullpath
);
$result .= &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$dir);
}
$result .= "/$filename";
return $result;
}
sub get_port_path_and_group {
my ($uri)=@_;
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my ($port_path,$group);
if ($uri =~ m{^/editupload/\Q$cdom\E/\Q$cnum\E/groups/}) {
$group = (split('/',$uri))[5];
$port_path = '/adm/coursegrp_portfolio';
} else {
$port_path = '/adm/portfolio';
}
if ($env{'form.group'} ne $group) {
$env{'form.group'} = $group;
}
return ($port_path,$group);
}
sub portfolio_display_uri {
my ($uri,$as_links)=@_;
my ($port_path,$group) = &get_port_path_and_group($uri);
$uri =~ s|.*/(portfolio/.*)$|$1|;
my ($res_uri,$meta_uri) = ($uri,$uri);
if ($uri =~ /\.meta$/) {
$res_uri =~ s/\.meta//;
} else {
$meta_uri .= '.meta';
}
my ($path) = ($res_uri =~ m|^portfolio(.*/)[^/]*$|);
if ($as_links) {
$res_uri = &portfolio_linked_path($res_uri,$group,$port_path);
$meta_uri = &portfolio_linked_path($meta_uri,$group,$port_path);
}
return ($res_uri,$meta_uri,$path);
}
sub pre_select_course {
my ($r,$uri) = @_;
my $output;
my $fn=&Apache::lonnet::filelocation('',$uri);
my ($res_uri,$meta_uri,$path) = &portfolio_display_uri($uri);
%Apache::lonpublisher::metadatafields=();
%Apache::lonpublisher::metadatakeys=();
my $result=&Apache::lonnet::getfile($fn);
if ($result == -1){
$r->print(&mt('Creating new file [_1]'),$meta_uri);
} else {
&Apache::lonpublisher::metaeval($result);
}
$r->print('<hr /><form method="post" action="" >');
$r->print('<p>'.&mt('If you would like to associate this resource ([_1]) with a current or previous course, please select one from the list below, otherwise select, "None".','<tt>'.$res_uri.'</tt>').'</p>');
$output = &select_course();
$r->print($output.'<br /><input type="submit" name="store" value="'.
&mt('Associate Resource With Selected Course').'" />');
$r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
$r->print('<input type="hidden" name="associate" value="true" />');
$r->print('</form>');
my ($port_path,$group) = &get_port_path_and_group($uri);
my $group_input;
if ($group) {
$group_input = '<input type="hidden" name="group" value="'.$group.'" />';
}
$r->print(' <form method="post" action="'.$port_path.'">'.
'<input type="hidden" name="currentpath" value="'.$path.'" />'.
$group_input.
'<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'.
'</form>');
return;
}
sub select_course {
my $output=$/;
my $current_restriction=
$Apache::lonpublisher::metadatafields{'courserestricted'};
my $selected = ($current_restriction eq 'none' ? 'selected="selected"'
: '');
if ($current_restriction =~ /^course\.($match_domain\_$match_courseid)$/) {
my $assoc_crs = $1;
my $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
if (ref($added_metadata_fields) eq 'HASH') {
if (keys(%{$added_metadata_fields}) > 0) {
my $transfernotes;
foreach my $field_name (keys(%{$added_metadata_fields})) {
my $value = $Apache::lonpublisher::metadatafields{$field_name};
if ($value) {
$transfernotes .=
&Apache::loncommon::start_data_table_row().
'<td><input type="checkbox" name="transfer_'.
$field_name.'" value="1" /></td><td>'.
$field_name.'</td><td>'.$value.'</td>'.
&Apache::loncommon::end_data_table_row();
}
}
if ($transfernotes ne '') {
my %courseinfo = &Apache::lonnet::coursedescription($assoc_crs,{'one_time' => 1});
my $assoc_crs_description = $courseinfo{'description'};
$output .= &mt('This resource is currently associated with a course ([_1]) which includes added metadata fields specific to the course.',$assoc_crs_description).'<br />'."\n".
&mt('You can choose to transfer data from the added fields to the "Notes" field if you are planning to change the course association.').'<br /><br />'.
&Apache::loncommon::start_data_table().
&Apache::loncommon::start_data_table_header_row().
'<th>'.&mt('Copy to notes?').'</th>'."\n".
'<th>'.&mt('Field Name').'</th>'."\n".
'<th>'.&mt('Values').'</th>'."\n".
&Apache::loncommon::end_data_table_header_row().
$transfernotes.
&Apache::loncommon::end_data_table().'<br />';
}
}
}
}
$output .= '<select name="new_courserestricted" >';
$output .= '<option value="none" '.$selected.'>'.
&mt('None').'</option>'.$/;
my %courses;
foreach my $key (keys(%env)) {
if ($key !~ m/^course\.(.+)\.description$/) { next; }
my $cid = $1;
if ($env{$key} !~ /\S/) { next; }
$courses{$key} = $cid;
}
foreach my $key (sort { lc($env{$a}) cmp lc($env{$b}) } (keys(%courses))) {
my $cid = 'course.'.$courses{$key};
my $selected = ($current_restriction eq $cid ? 'selected="selected"'
: '');
if ($env{$key} !~ /\S/) { next; }
$output .= '<option value="'.$cid.'" '.$selected.'>';
$output .= $env{$key};
$output .= '</option>'.$/;
$selected = '';
}
$output .= '</select><br />';
return ($output);
}
# Pretty printing of metadata field
sub prettyprint {
my ($type,$value,$target,$prefix,$form)=@_;
# $target,$prefix,$form are optional and for filecrumbs only
if (! defined($value)) {
return ' ';
}
# Title
if ($type eq 'title') {
return $value;
}
# Dates
if (($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($value);
}
# Copyright
if ($type eq 'sourceavail') {
return &Apache::loncommon::source_copyrightdescription($value);
}
# MIME
if ($type eq 'mime') {
return '<img src="'.&Apache::loncommon::icon($value).'" alt="" /> '.
&Apache::loncommon::filedescription($value);
}
# Person
if (($type eq 'author') ||
($type eq 'owner') ||
($type eq 'modifyinguser') ||
($type eq 'authorspace')) {
$value=~s/($match_username)(\:|\@)($match_domain)/&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') ||
($type eq 'dependencies')) {
return '<ul class="LC_fontsize_medium">'.join("\n",map {
my $url = &Apache::lonnet::clutter_with_no_wrapper($_);
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';
}
}
$_ = '<li>'.$title.' '.
&Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form).
'</li>'
} split(/\s*\,\s*/,$value)).'</ul>';
}
# Evaluations
if (($type eq 'clear') ||
($type eq 'depth') ||
($type eq 'helpful') ||
($type eq 'correct') ||
($type eq 'technical')) {
return &evalgraph($value);
}
# Difficulty
if ($type eq 'difficulty' || $type eq 'disc') {
return &diffgraph($value);
}
# List of courses
if ($type=~/\_list/) {
my @Courses = split(/\s*\,\s*/,$value);
my $Str='<ul class="LC_fontsize_medium">';
my %descriptions;
foreach my $course (@Courses) {
my %courseinfo =
&Apache::lonnet::coursedescription($course,
{'one_time' => 1});
if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
next;
}
$descriptions{join('\0',@courseinfo{'domain','description'})} .=
'<li><a href="/public/'.$courseinfo{'domain'}.'/'.
$courseinfo{'num'}.'/syllabus" target="preview">'.
$courseinfo{'description'}.' ('.$courseinfo{'domain'}.
')</a></li>';
}
foreach my $course (sort {lc($a) cmp lc($b)} (keys(%descriptions))) {
$Str .= $descriptions{$course};
}
return $Str.'</ul>';
}
# No pretty print found
return $value;
}
# Pretty input of metadata field
sub direct {
return shift;
}
sub selectbox {
my ($name,$value,$readonly,$functionref,@idlist)=@_;
if (! defined($functionref)) {
$functionref=\&direct;
}
my $disabled;
if ($readonly) {
$disabled = ' disabled="disabled"';
}
my $selout='<select name="'.$name.'">';
foreach my $id (@idlist) {
$selout.='<option value="'.$id.'"'.$disabled;
if ($id eq $value) {
$selout.=' selected="selected">'.&{$functionref}($id).'</option>';
} else {
$selout.='>'.&{$functionref}($id).'</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"'.
($relatedvalue?' checked="checked"':'').' />';
}
sub prettyinput {
my ($type,$value,$readonly,$fieldname,$formname,
$relatedsearchflag,$relatedsep,$relatedvalue,$size,$course_key)=@_;
if (! defined($size)) {
$size = 80;
}
my $output;
if (defined($course_key)
&& exists($env{$course_key.'.metadata.'.$type.'.options'})) {
my $stu_add;
my $only_one;
my %meta_options;
my @cur_values_inst;
my $cur_values_stu;
my $values = $env{$course_key.'.metadata.'.$type.'.values'};
if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/stuadd/) {
$stu_add = 'true';
}
if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/onlyone/) {
$only_one = 'true';
}
# need to take instructor values out of list where instructor and student
# values may be mixed.
if ($values) {
foreach my $item (split(/,/,$values)) {
$item =~ s/^\s+//;
$meta_options{$item} = $item;
}
foreach my $item (split(/,/,$value)) {
$item =~ s/^\s+//;
if ($meta_options{$item}) {
push(@cur_values_inst,$item);
} else {
if ($item ne '') {
$cur_values_stu .= $item.',';
}
}
}
$cur_values_stu =~ s/,$//;
my @key_order = sort(keys(%meta_options));
unshift(@key_order,'');
$meta_options{''} = 'Not specified';
$meta_options{'select_form_order'} = \@key_order;
} else {
$cur_values_stu = $value;
}
if ($type eq 'courserestricted') {
return (&select_course());
# return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
}
if (($type eq 'keywords') || ($type eq 'subject')
|| ($type eq 'author')||($type eq 'notes')
|| ($type eq 'abstract')|| ($type eq 'title')|| ($type eq 'standards')
|| (exists($env{$course_key.'.metadata.'.$type.'.added'}))) {
if ($values) {
if ($only_one) {
$output .= (&Apache::loncommon::select_form($cur_values_inst[0],'new_'.$type,\%meta_options));
} else {
$output .= (&Apache::loncommon::multiple_select_form('new_'.$type,\@cur_values_inst,undef,\%meta_options));
}
}
if ($stu_add) {
$output .= '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
'value="'.$cur_values_stu.'" />'.
&relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
$relatedvalue);
}
return ($output);
}
if (($type eq 'lowestgradelevel') ||
($type eq 'highestgradelevel')) {
return &Apache::loncommon::select_level_form($value,$fieldname).
&relatedfield(0,$relatedsearchflag,$relatedsep);
}
return();
}
# 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,
$value,$readonly,
\&Apache::loncommon::copyrightdescription,
(&Apache::loncommon::copyrightids)).
&relatedfield(0,$relatedsearchflag,$relatedsep);
}
# Source Copyright
if ($type eq 'sourceavail') {
return &selectbox($fieldname,
$value,'',
\&Apache::loncommon::source_copyrightdescription,
(&Apache::loncommon::source_copyrightids)).
&relatedfield(0,$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="checked"':'').' />'.
&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') {
my $disabled;
if ($readonly) {
$disabled = ' disabled="disabled"';
}
my $output;
$output = '<input type="text" name="'.$fieldname.
'" size="60" value="'.$value.'"'.$disabled.' />';
unless ($readonly) {
$output .= '<a href="javascript:openbrowser'.
"('".$formname."','".$fieldname."'".
",'rights')\">".&mt('Select').'</a>';
}
$output .= &relatedfield(0,$relatedsearchflag,$relatedsep);
return $output;
}
# Source Customdistribution file
if ($type eq 'sourcerights') {
return '<input type="text" name="'.$fieldname.
'" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
"('".$formname."','".$fieldname."'".
",'rights')\">".&mt('Select').'</a>'.
&relatedfield(0,$relatedsearchflag,$relatedsep);
}
if ($type eq 'courserestricted') {
return (&select_course());
#return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
}
# 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;
$value=~s/\"/\"\;/gs;
return
'<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
'value="'.$value.'" />'.
&relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
$relatedvalue);
}
# Create pageheader
sub pageheader {
my $output = '';
# No CSTR? Include breadcrumbs
if ($env{'request.state'} ne 'construct') {
# loncommon::bodytag already includes breadcrumbs for CSTR
# by calling lonmenu::innerregister
$output = &Apache::lonhtmlcommon::breadcrumbs();
}
# CSTR? Include CSTR header
if ($env{'request.state'} eq 'construct') {
$output .= &Apache::loncommon::head_subbox(
&Apache::loncommon::CSTR_pageheader());
}
return $output;
}
# Main Handler
sub handler {
my $r=shift;
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['currentpath','changecourse','modal']);
my $uri=$r->uri;
#
# Set document type
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
my ($resdomain,$resuser)=
(&Apache::lonnet::declutter($uri)=~/^($match_domain)\/($match_username)\//);
# Breadcrumbs
&Apache::lonhtmlcommon::clear_breadcrumbs();
if ($env{'request.state'} eq 'construct') {
my $text = 'Authoring Space';
my $href = &Apache::loncommon::authorspace($uri);
if ($env{'request.course.id'}) {
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
if ($href eq "/priv/$cdom/$cnum/") {
$text = 'Course Authoring Space';
}
}
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => $text,
'href' => $href,
});
}
if ($uri=~m:/adm/bombs/(.*)$:) {
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => 'Error Messages',
'href' => '',
});
$r->print(&Apache::loncommon::start_page('Error Messages'));
$r->print(&pageheader());
# Looking for all bombs?
&report_bombs($r,$uri);
} elsif ($uri=~m|^/editupload/[^/]+/[^/]+/portfolio/|) {
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => 'Edit Portfolio File Metadata',
'href' => '',
});
($resdomain,$resuser)=
(&Apache::lonnet::declutter($uri)=~m|^($match_domain)/($match_name)/portfolio|);
$r->print(&Apache::loncommon::start_page('Edit Portfolio File Metadata',
undef,
{'domain' => $resdomain,}));
$r->print(&pageheader());
if ($env{'form.store'}) {
&present_editable_metadata($r,$uri,'portfolio');
} else {
my $fn=&Apache::lonnet::filelocation('',$uri);
%Apache::lonpublisher::metadatafields=();
%Apache::lonpublisher::metadatakeys=();
my $result=&Apache::lonnet::getfile($fn);
&Apache::lonpublisher::metaeval($result);
if ((!$Apache::lonpublisher::metadatafields{'courserestricted'}) ||
($env{'form.changecourse'} eq 'true')) {
&pre_select_course($r,$uri);
} else {
&present_editable_metadata($r,$uri,'portfolio');
}
}
} elsif ($uri=~m|^/editupload/[^/]+/[^/]+/groups/|) {
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => 'Edit Group Portfolio File Metadata',
'href' => '',
});
$r->print(&Apache::loncommon::start_page('Edit Group Portfolio File Metadata',
undef,
{'domain' => $resdomain,}));
$r->print(&pageheader());
&present_editable_metadata($r,$uri,'groups');
} elsif ($uri=~m|^/priv|) {
# Authoring space
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => 'Edit Metadata',
'href' => '',
});
$r->print(&Apache::loncommon::start_page('Edit Metadata',
"\n".'<script type="text/javascript">'."\n".
&Apache::loncommon::browser_and_searcher_javascript().
"\n".'</script>',
{'domain' => $resdomain,}));
$r->print(&pageheader());
&present_editable_metadata($r,$uri);
} else {
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => 'Metadata',
'href' => '',
});
$r->print(
&Apache::loncommon::start_page(
'Metadata',
undef,
{'domain' => $resdomain,
'only_body' => 1,})
.'<h1>'.&mt('Metadata').'</h1>'
);
if ($env{'form.modal'}) {
my $width = 500;
my $height = 400;
my $machine = &Apache::lonnet::absolute_url();
$r->print(&Apache::loncommon::nicescroll_javascript('metadatawrapper',
{cursorcolor => '#00F',
railalign => 'right',
railoffset => '{top:5,left:40}'},
undef,1,$machine.$uri));
$r->print('<div id="metadatawrapper" style="height:'.$height.'px; width:'.$width.'px; overflow: auto;">');
}
&present_uneditable_metadata($r,$uri);
if ($env{'form.modal'}) {
$r->print('</div>');
}
}
$r->print(&Apache::loncommon::end_page());
return OK;
}
#####################################################
#####################################################
### ###
### Report Bombs ###
### ###
#####################################################
#####################################################
sub report_bombs {
my ($r,$uri) = @_;
# Set document type
$uri =~ s:/adm/bombs/::;
$uri = &Apache::lonnet::declutter($uri);
$r->print(
'<p>'.&mt('Folder: [_1]',
'<span class="LC_filename">'.&Apache::lonnet::clutter($uri).'</span>')
.'</p>'
);
my ($domain,$author)=($uri=~/^($match_domain)\/($match_username)\//);
if (!&Apache::lonnet::constructaccess('/priv/'.$domain.'/'.$author.'/')) {
$r->print('<p class="LC_error">'.&mt('Not authorized').'</p>');
return;
}
my $showbuttons=1;
my $message='';
if ($env{'form.clearbombs'}) {
my $rc=&Apache::lonmsg::clear_author_res_msg($uri);
if ($rc eq 'ok') {
$message=&Apache::lonhtmlcommon::confirm_success(
&mt('Messages cleared.'));
$showbuttons=0;
} else {
$message=&Apache::lonhtmlcommon::confirm_success(
&mt('Error clearing messages'),1)
.'<br />'.&mt('Error: [_1]',$rc);
}
}
if ($message) {
$message=&Apache::loncommon::confirmwrapper($message);
$r->print($message);
}
my $cancelurl=$uri;
$cancelurl=~s/^\Q$domain\E/\/priv\/$domain/;
if ($showbuttons) {
$r->print(
'<form method="post" action="">'.
'<input type="submit" name="clearbombs" value="'.
&mt('Clear all Messages in Subdirectory').'" />'.
' <a href="'.$cancelurl.'">'.
&mt('Back to Source Directory').'</a>'.
'</form><hr />'
);
# Display all bombs of subdirectory
my %brokenurls =
&Apache::lonmsg::all_url_author_res_msg($author,$domain);
foreach my $key (sort(keys(%brokenurls))) {
if ($key=~/^\Q$uri\E/) {
$r->print
('<a href="'.&Apache::lonnet::clutter($key).'">'.$key.'</a>'.
&Apache::lonmsg::retrieve_author_res_msg($key).
'<hr />');
}
}
} else {
my $functions=&Apache::lonhtmlcommon::start_funclist('Actions');
$functions.=&Apache::lonhtmlcommon::add_item_funclist(
'<a href="'.$cancelurl.'">'.
&mt('Back to Source Directory').'</a>');
$functions .= &Apache::lonhtmlcommon::end_funclist();
$r->print('<p>'.$functions.'</p>');
}
return;
}
#####################################################
#####################################################
### ###
### Uneditable Metadata Display ###
### ###
#####################################################
#####################################################
sub present_uneditable_metadata {
my ($r,$uri) = @_;
#
my $uploaded = ($uri =~ m|/uploaded/|);
my %content=();
# Read file
foreach my $key (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
$content{$key}=&Apache::lonnet::metadata($uri,$key);
}
# Render Output
# displayed url
my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
$uri=~s/\.meta$//;
my $disuri=&Apache::lonnet::clutter_with_no_wrapper($uri);
# version
my $versiondisplay='';
if (!$uploaded) {
my $currentversion=&Apache::lonnet::getversion($disuri);
if ($thisversion) {
$versiondisplay=&mt('Version').': '.$thisversion.
' ('.&mt('most recent version').': '.
($currentversion>0 ?
$currentversion :
&mt('information not available')).')';
} else {
$versiondisplay=&mt('Version: [_1]',$currentversion);
}
}
# crumbify displayed URL uri target prefix form
$disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef);
# obsolete
my $obsolete=$content{'obsolete'};
my $obsoletewarning='';
if (($obsolete) && ($env{'user.adv'})) {
$obsoletewarning='<p><span class="LC_warning">'.
&mt('This resource has been marked obsolete by the author(s)').
'</span></p>';
}
#
my %lt=&fieldnames();
my $table='';
my $title = $content{'title'};
if (! defined($title)) {
$title = &mt('Untitled Resource');
}
my @fields;
if ($uploaded) {
@fields = ('title','author','subject','keywords','notes','abstract',
'lowestgradelevel','highestgradelevel','standards','mime',
'owner');
} else {
@fields = ('title',
'author',
'subject',
'keywords',
'notes',
'abstract',
'lowestgradelevel',
'highestgradelevel',
'standards',
'mime',
'language',
'creationdate',
'lastrevisiondate',
'owner',
'copyright',
'customdistributionfile',
'sourceavail',
'sourcerights',
'obsolete',
'obsoletereplacement');
}
my $rownum = 0;
foreach my $field (@fields) {
my $lastrow = '';
$rownum ++;
$lastrow = 1 if ($rownum == @fields);
$table.=&Apache::lonhtmlcommon::row_title($lt{$field})
.&prettyprint($field,$content{$field})
.&Apache::lonhtmlcommon::row_closure($lastrow);
delete($content{$field});
}
#
$r->print("<h2>$title</h2>"
.'<p>'
.$disuri.'<br />'
.$obsoletewarning
.$versiondisplay
.'</p>'
.&Apache::lonhtmlcommon::start_pick_box()
.$table
.&Apache::lonhtmlcommon::end_pick_box()
);
if (!$uploaded && $env{'user.adv'}) {
&print_dynamic_metadata($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
$r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>');
if (exists($dynmeta{'count'}) ||
exists($dynmeta{'sequsage'}) ||
exists($dynmeta{'comefrom'}) ||
exists($dynmeta{'goto'}) ||
exists($dynmeta{'course'})) {
$r->print(&Apache::lonhtmlcommon::start_pick_box());
my @counts = ('count','sequsage','sequsage_list',
'comefrom','comefrom_list','goto',
'goto_list','course','course_list');
my $rownum = 0;
foreach my $item (@counts) {
my $lastrow = '';
$rownum ++;
$lastrow = 1 if ($rownum == @counts);
$r->print(&Apache::lonhtmlcommon::row_title($lt{$item})
.&prettyprint($item,$dynmeta{$item})
.&Apache::lonhtmlcommon::row_closure($lastrow)
);
}
$r->print(&Apache::lonhtmlcommon::end_pick_box());
} else {
$r->print('<p>'
.&mt('No Access or Usages Statistics are available for this resource.')
.'</p>'
);
}
#
# Assessment statistics
if ($uri=~/$LONCAPA::assess_re/) {
if (exists($dynmeta{'stdno'}) ||
exists($dynmeta{'avetries'}) ||
exists($dynmeta{'difficulty'}) ||
exists($dynmeta{'disc'})) {
# This is an assessment, print assessment data
$r->print('<h4>'.
&mt('Overall Assessment Statistical Data').
'</h4>'.
&Apache::lonhtmlcommon::start_pick_box());
$r->print(&Apache::lonhtmlcommon::row_title($lt{'stdno'})
.&prettyprint('stdno',$dynmeta{'stdno'})
.&Apache::lonhtmlcommon::row_closure()
);
my @stats = ('avetries','difficulty','disc');
my $rownum = 0;
foreach my $item (@stats) {
my $lastrow = '';
$rownum ++;
$lastrow = 1 if ($rownum == @stats);
$r->print(&Apache::lonhtmlcommon::row_title($lt{$item})
.&prettyprint($item,sprintf('%5.2f',$dynmeta{$item}))
.&Apache::lonhtmlcommon::row_closure($lastrow)
);
}
$r->print(&Apache::lonhtmlcommon::end_pick_box());
}
#
# New assessment statistics
$r->print('<h4>'
.&mt('Recent Detailed Assessment Statistical Data')
.'</h4>'
);
if (exists($dynmeta{'stats'})) {
my $table=&Apache::loncommon::start_data_table()
.&Apache::loncommon::start_data_table_header_row()
.'<th>'.&mt('Domain').'</th>'
.'<th>'.&mt('Course').'</th>'
.'<th>'.&mt('Section(s)').'</th>'
.'<th>'.&mt('Num Students').'</th>'
.'<th>'.&mt('Part').'</th>'
.'<th>'.&mt('Mean Tries').'</th>'
.'<th>'.&mt('Degree of Difficulty').'</th>'
.'<th>'.&mt('Degree of Discrimination').'</th>'
.'<th>'.&mt('Time of computation').'</th>'
.&Apache::loncommon::end_data_table_header_row().$/;
foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
my $data = $dynmeta{'stats'}->{$identifier};
my $course = $data->{'course'};
my %courseinfo =
&Apache::lonnet::coursedescription($course,
{'one_time' => 1});
if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
&Apache::lonnet::logthis('lookup for '.$course.' failed');
next;
}
$table .= &Apache::loncommon::start_data_table_row();
$table .=
'<td><span class="LC_nobreak">'.$courseinfo{'domain'}.'</span></td>';
$table .=
'<td><span class="LC_nobreak">'.$courseinfo{'description'}.'</span></td>';
$table .=
'<td align="right">'.$data->{'sections'}.'</td>';
$table .=
'<td align="right">'.$data->{'stdno'}.'</td>';
$table .=
'<td align="right">'.$data->{'part'}.'</td>';
foreach my $item ('avetries','difficulty','disc') {
$table .= '<td align="right">';
if (exists($data->{$item})) {
$table .= sprintf('%.2f',$data->{$item}).' ';
} else {
$table .= '';
}
$table .= '</td>';
}
$table .=
'<td><span class="LC_nobreak">'.
&Apache::lonlocal::locallocaltime($data->{'timestamp'}).
'</span></td>';
$table .= &Apache::loncommon::end_data_table_row().$/;
}
$table .= &Apache::loncommon::end_data_table().$/;
$r->print($table);
} else {
$r->print('<p>'
.&mt('No new dynamic data found.')
.'</p>'
);
}
} else {
$r->print('<h4>'.
&mt('No Assessment Statistical Data is available for this resource').
'</h4>');
}
#
# Evaluation Data
$r->print('<h4>'.&mt('Evaluation Data').'</h4>');
if (exists($dynmeta{'clear'}) ||
exists($dynmeta{'depth'}) ||
exists($dynmeta{'helpful'}) ||
exists($dynmeta{'correct'}) ||
exists($dynmeta{'technical'})){
$r->print(&Apache::lonhtmlcommon::start_pick_box());
my @criteria = ('clear','depth','helpful','correct','technical');
my $rownum = 0;
foreach my $item (@criteria) {
my $lastrow = '';
$rownum ++;
$lastrow = 1 if ($rownum == @criteria);
$r->print(&Apache::lonhtmlcommon::row_title($lt{$item})
.&prettyprint($item,$dynmeta{$item})
.&Apache::lonhtmlcommon::row_closure($lastrow)
);
}
$r->print(&Apache::lonhtmlcommon::end_pick_box());
} else {
$r->print('<p>'
.&mt('No Evaluation Data is available for this resource.')
.'</p>'
);
}
# Evaluation Comments
$uri=~/^\/res\/($match_domain)\/($match_username)\//;
if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
|| ($env{'user.role.ca./'.$1.'/'.$2})) {
$r->print('<h4>'.&mt('Evaluation Comments').'</h4>'
.'<div>('
.&mt('visible to author and co-authors only')
.')</div>'
);
if (exists($dynmeta{'comments'})) {
$r->print('<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
} else {
$r->print('<p>'
.&mt('There are no Evaluation Comments on this resource.')
.'</p>'
);
}
my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
if (defined($bombs) && $bombs ne '') {
$r->print('<a name="bombs" />'
.'<h4 class="LC_warning">'.&mt('Error Messages').'</h4>'
.'<div>('
.&mt('visible to author and co-authors only')
.')</div>'
.$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>');
$r->print(&Apache::lonhtmlcommon::start_pick_box());
my @names;
foreach my $key (sort(keys(%content))) {
if ($key!~/\.display$/) {
push(@names,$key);
}
}
if (@names > 0) {
my $rownum = 0;
foreach my $name (@names) {
my $lastrow = '';
$rownum ++;
$lastrow = 1 if ($rownum == @names);
my $display=&Apache::lonnet::metadata($uri,
$name.'.display');
if (! $display) {
$display=$name;
};
my $otherinfo='';
foreach my $item ('name','part','type','default') {
if (defined(&Apache::lonnet::metadata($uri,
$name.'.'.$item))) {
$otherinfo.=' '.$item.'='.
&Apache::lonnet::metadata($uri,
$name.'.'.$item).'; ';
}
}
$r->print(&Apache::lonhtmlcommon::row_title($display)
.$content{$name}
);
if ($otherinfo) {
$r->print(' ('.$otherinfo.')');
}
$r->print(&Apache::lonhtmlcommon::row_closure($lastrow));
}
}
$r->print(&Apache::lonhtmlcommon::end_pick_box());
return;
}
#####################################################
#####################################################
### ###
### Editable metadata display ###
### ###
#####################################################
#####################################################
sub present_editable_metadata {
my ($r,$uri,$file_type) = @_;
# Authoring Space Call
# Header
my $disuri=$uri;
my ($courseauthor,$crsaurights,$readonly);
if ($env{'request.course.id'}) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
if ($uri =~ m{^\Q/priv/$cdom/$cnum/\E}) {
$courseauthor = $cnum.':'.$cdom;
$crsaurights = "/res/$cdom/$cnum/default.rights";
$readonly = 1;
}
}
my $fn=&Apache::lonnet::filelocation('',$uri);
$disuri=~s{^/\~}{/priv/};
$disuri=~s/\.meta$//;
my $meta_uri = $disuri;
my $path;
if ($disuri =~ m|/portfolio/|) {
($disuri, $meta_uri, $path) = &portfolio_display_uri($disuri,1);
}
my $target=$uri;
$target=~s{^/\~}{/res/$env{'request.role.domain'}/};
$target=~s/\.meta$//;
my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
if ($bombs) {
# Display Bombs, not Metadata
$r->print(
'<h2>'.&mt('Error Messages').'</h2>'
.'<p>'.&mt('Folder: [_1]',
'<span class="LC_filename">'.$disuri.'</span>')
.'</p>'
);
my $showbuttons=1;
my $message='';
my $rc='';
if ($env{'form.delmsg'}) {
$rc=&Apache::lonmsg::del_url_author_res_msg($target);
if ($rc eq 'ok') {
$message=&Apache::lonhtmlcommon::confirm_success(
&mt('Messages deleted.'));
$showbuttons=0;
} else {
$message=&Apache::lonhtmlcommon::confirm_success(
&mt('Error deleting messages'), 1)
.'<br />'.&mt('Error: [_1]',$rc);
}
}
if ($env{'form.clearmsg'}) {
my $cleardir=$target;
$cleardir=~s/\/[^\/]+$/\//; # Extract dir: keep path, remove filename
$rc=&Apache::lonmsg::clear_author_res_msg($cleardir);
if ($rc eq 'ok') {
$message=&Apache::lonhtmlcommon::confirm_success(
&mt('Messages cleared.'));
$showbuttons=0;
} else {
$message=&Apache::lonhtmlcommon::confirm_success(
&mt('Error clearing messages'),1)
.'<br />'.&mt('Error: [_1]',$rc);
}
}
if ($message) {
$message=&Apache::loncommon::confirmwrapper($message);
$r->print($message);
}
$r->print('<form method="post" action="" name="defaultmeta">');
if ($showbuttons) {
$r->print(
'<input type="submit" name="delmsg" value="'.
&mt('Delete Messages for this Resource').'" />'.
'<input type="submit" name="clearmsg" value="'.
&mt('Clear all Messages in Subdirectory').'" />'
.'<br />'.$bombs
);
} else {
my $functions=&Apache::lonhtmlcommon::start_funclist('Actions');
$functions.=&Apache::lonhtmlcommon::add_item_funclist(
'<a href="'.$disuri.'">'.
&mt('Back to Source File').'</a>');
my ($diruri) = ($disuri =~ m{(.*/)[^/]*});
$functions.=&Apache::lonhtmlcommon::add_item_funclist(
'<a href="'.$diruri.'">'.
&mt('Back to Source Directory').'</a>');
$functions .= &Apache::lonhtmlcommon::end_funclist();
$r->print('<p>'.$functions.'</p>');
}
} else {
# Display Metadata, not Bombs
my $displayfile =
&mt('Metadata for [_1]'
,'<span class="LC_filename">'.$disuri.'</span>');
if ($disuri=~/\/default$/) {
my $dir=$disuri;
$dir=~s/default$//;
$displayfile=&mt('Default Metadata for Directory [_1]'
,'<span class="LC_filename">'.$dir.'</span>');
}
%Apache::lonpublisher::metadatafields=();
%Apache::lonpublisher::metadatakeys=();
my $result=&Apache::lonnet::getfile($fn);
if ($result == -1){
my $message = &Apache::lonhtmlcommon::confirm_success(
&mt('Creating new file [_1]'
,'<span class="LC_filename"'.$meta_uri.'</span>'));
$message = &Apache::loncommon::confirmwrapper($message);
$r->print($message);
} else {
&Apache::lonpublisher::metaeval($result);
}
if ($env{'form.new_courserestricted'}) {
my $new_assoc_course = $env{'form.new_courserestricted'};
my $prev_courserestricted = $Apache::lonpublisher::metadatafields{'courserestricted'};
if (($prev_courserestricted) &&
($prev_courserestricted ne $new_assoc_course)) {
my $transfers = [];
foreach my $key (keys(%env)) {
if ($key =~ /^form\.transfer_(.+)$/) {
push(@{$transfers},$1);
}
}
if (@{$transfers} > 0) {
&store_transferred_addedfields($fn,$uri,$transfers);
}
}
}
$r->print(<<ENDEDIT);
<h2>$displayfile</h2>
<form method="post" action="" name="defaultmeta">
ENDEDIT
my %lt=&fieldnames($file_type);
my $output;
my @fields;
my $added_metadata_fields;
my @added_order;
if ($file_type eq 'groups') {
$Apache::lonpublisher::metadatafields{'courserestricted'}=
'course.'.$env{'request.course.id'};
}
if ((! $Apache::lonpublisher::metadatafields{'courserestricted'}) &&
(! $env{'form.new_courserestricted'}) && (! $file_type eq 'groups')) {
$Apache::lonpublisher::metadatafields{'courserestricted'}=
'none';
} elsif ($env{'form.new_courserestricted'}) {
$Apache::lonpublisher::metadatafields{'courserestricted'}=
$env{'form.new_courserestricted'};
}
if ($file_type eq 'portfolio' || $file_type eq 'groups') {
if(exists ($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'})) {
# retrieve fieldnames (in order) from the course restricted list
@fields = (split(/,/,$env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'}));
} else {
# no saved field list, use default list
@fields = ('title','author','subject','keywords','abstract',
'notes','lowestgradelevel',
'highestgradelevel','standards');
if ($Apache::lonpublisher::metadatafields{'courserestricted'} =~ /^course\.($match_domain\_$match_courseid)$/) {
my $assoc_crs = $1;
$added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
if ($env{'course.'.$assoc_crs.'.metadata.addedorder'}) {
@added_order = split(/,/,$env{'course.'.$assoc_crs.'.metadata.addedorder'});
}
$env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'} = join(",",@fields);
}
}
} else {
@fields = ('title','author','subject','keywords','abstract','notes',
'copyright','customdistributionfile','language',
'standards',
'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
'obsolete','obsoletereplacement');
}
if ($courseauthor) {
$Apache::lonpublisher::metadatafields{'copyright'}='custom';
$Apache::lonpublisher::metadatafields{'customdistributionfile'}=$crsaurights;
}
my (%domdefs,$got_domdefs);
if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
my $copyright = 'default';
if ($env{'environment.copyright'} ne '') {
$copyright = $env{'environment.copyright'};
} else {
my $defdom = $env{'request.role.domain'};
if ($disuri =~ m{^/priv/($match_domain)/}) {
$defdom = $1;
}
if ($defdom ne '') {
%domdefs = &Apache::lonnet::get_domain_defaults($defdom);
$got_domdefs = 1;
if ($domdefs{'copyright'} ne '') {
$copyright = $domdefs{'copyright'};
}
}
}
$Apache::lonpublisher::metadatafields{'copyright'}=
$copyright;
}
if (! $Apache::lonpublisher::metadatafields{'sourceavail'}) {
my $sourceavail = 'closed';
if ($env{'environment.sourceavail'} ne '') {
$sourceavail = $env{'environment.sourceavail'};
} else {
my $defdom = $env{'request.role.domain'};
if ($disuri =~ m{^/priv/($match_domain)/}) {
$defdom = $1;
}
if ($defdom ne '') {
unless ($got_domdefs) {
%domdefs = &Apache::lonnet::get_domain_defaults($defdom);
$got_domdefs = 1;
}
if ($domdefs{'sourceavail'} ne '') {
$sourceavail = $domdefs{'sourceavail'};
}
}
}
$Apache::lonpublisher::metadatafields{'sourceavail'}=
$sourceavail;
}
if (($file_type eq 'portfolio') || ($file_type eq 'groups')) {
if (! $Apache::lonpublisher::metadatafields{'mime'}) {
($Apache::lonpublisher::metadatafields{'mime'}) =
( $target=~/\.(\w+)$/ );
}
if (! $Apache::lonpublisher::metadatafields{'owner'}) {
$Apache::lonpublisher::metadatafields{'owner'} =
$env{'user.name'}.':'.$env{'user.domain'};
}
if (! $Apache::lonpublisher::metadatafields{'author'}) {
$Apache::lonpublisher::metadatafields{'author'} =
&Apache::loncommon::plainname($env{'user.name'},
$env{'user.domain'});
}
if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none') {
if ($file_type eq 'portfolio') {
$r->print(
&mt('Associated with course [_1]'
,'<strong>'
.$env{$Apache::lonpublisher::metadatafields{'courserestricted'}
.".description"}.'</strong>')
.' <a href="'.$uri.'?changecourse=true">'
.&mt('Change')
.'</a>'.'<br />'
);
} else {
$r->print(&mt('Associated with course [_1]',
'<strong>'.
$env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
".description"}.'</strong>').'<br />');
}
} else {
$r->print(
&mt('This resource is not associated with a course.')
.' <a href="'.$uri.'?changecourse=true">'.&mt('Change').'</a><br />'
);
}
}
if (@added_order) {
foreach my $field_name (@added_order) {
push(@fields,$field_name);
$lt{$field_name} = $$added_metadata_fields{$field_name};
}
} else {
foreach my $field_name (keys(%$added_metadata_fields)) {
push(@fields,$field_name);
$lt{$field_name} = $$added_metadata_fields{$field_name};
}
}
$output .= &Apache::lonhtmlcommon::start_pick_box();
my $last = $#fields + 1;
my $rowcount = 0;
foreach my $field_name (@fields) {
$rowcount++;
if (defined($env{'form.new_'.$field_name})) {
my @values = &Apache::loncommon::get_env_multiple('form.new_'.$field_name);
my $newvalue = '';
foreach my $item (@values) {
if ($item ne '') {
$newvalue .= $item.',';
}
}
$newvalue =~ s/,$//;
$Apache::lonpublisher::metadatafields{$field_name}=$newvalue;
}
if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none'
&& exists($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'})) {
# handle restrictions here
if ((($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/active/) ||
($field_name eq 'courserestricted'))&&
(!($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/deleted/))){
$output .= &Apache::lonhtmlcommon::row_title($lt{$field_name})
.&prettyinput($field_name,
$Apache::lonpublisher::metadatafields{$field_name},
$readonly,'new_'.$field_name,'defaultmeta',
undef,undef,undef,undef,
$Apache::lonpublisher::metadatafields{'courserestricted'});
$output .= &Apache::lonhtmlcommon::row_closure($rowcount == $last?1:0);
}
} else {
$output .= &Apache::lonhtmlcommon::row_title($lt{$field_name})
.&prettyinput($field_name,
$Apache::lonpublisher::metadatafields{$field_name},
$readonly,'new_'.$field_name,'defaultmeta')
.&Apache::lonhtmlcommon::row_closure($rowcount == $last?1:0);
}
}
$output .= &Apache::lonhtmlcommon::end_pick_box();
if ($env{'form.store'}) {
my ($outcome,$result) = &store_metadata($fn,$uri,'store');
$r->print($result);
}
my $savebutton = '<p><input type="submit" name="store"'
.' value="'.&mt('Save').'" title="'.&mt('Save Metadata').'" /></p>';
$r->print($savebutton.$output.$savebutton);
if ($file_type eq 'portfolio' || $file_type eq 'groups') {
my ($port_path,$group) = &get_port_path_and_group($uri);
if ($group ne '') {
$r->print('<input type="hidden" name="group" value="'.$group.'" />');
}
$r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
$r->print('</form><br /><br /><form method="post" action="'.$port_path.'">');
if ($group ne '') {
$r->print('<input type="hidden" name="group" value="'.$group.'" />');
}
$r->print('<input type="hidden" name="currentpath" value="'.$path.'" />'.
'<input type="submit" name="cancel" value="'.&mt('Discard Edits and Return to Portfolio').'" />');
}
}
$r->print('</form>');
return;
}
sub store_metadata {
my ($fn,$uri,$caller) = @_;
my $mfh;
my $formname='store';
my ($file_content,$output,$outcome);
if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
$Apache::lonpublisher::metadatafields{'keywords'} =
join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
}
if (($caller eq 'store') && ($env{'request.course.id'})) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
if ($uri =~ m{^\Q/priv/$cdom/$cnum/\E}) {
unless ($uri eq "/priv/$cdom/$cnum/default.rights.meta") {
$Apache::lonpublisher::metadatafields{'copyright'} = 'custom';
$Apache::lonpublisher::metadatafields{'customdistributionfile'} =
"/res/$cdom/$cnum/default.rights";
}
}
}
foreach my $field (sort(keys(%Apache::lonpublisher::metadatafields))) {
next if ($field =~ /\./);
my $unikey=$field;
$unikey=~/^([A-Za-z_]+)/;
my $tag=$1;
$tag=~tr/A-Z/a-z/;
$file_content.= "\n\<$tag";
foreach my $key (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
my $value = $Apache::lonpublisher::metadatafields{$unikey.'.'.$key};
$value=~s/\"/\'\'/g;
$file_content.=' '.$key.'="'.$value.'"' ;
}
$file_content.= '>'.
&HTML::Entities::encode
($Apache::lonpublisher::metadatafields{$unikey},'<>&"').
'</'.$tag.'>';
}
if ($fn =~ m|^$Apache::lonnet::perlvar{'lonDocRoot'}/userfiles|) {
my ($path, $new_fn);
if ($fn =~ m|$match_name/groups/\w+/portfolio/|) {
($path, $new_fn) = ($fn =~ m|/(groups/\w+/portfolio.*)/([^/]*)$|);
} else {
($path, $new_fn) = ($fn =~ m|/(portfolio.*)/([^/]*)$|);
}
($outcome,my $result) =
&store_portfolio_metadata($formname,$file_content,
$path,$new_fn,$uri,$caller);
$output .= $result;
} else {
if (! ($mfh=Apache::File->new('>'.$fn))) {
$output .= '<p class="LC_error">';
if ($caller eq 'transfer') {
$output .= &mt('Could not transfer data in added fields to notes');
} else {
$output .= &mt('Could not write metadata');
}
$output .= ', '.&mt('FAIL').'</p>';
$outcome = 'fail';
} else {
print $mfh ($file_content);
close($mfh);
&update_metadata_table($uri);
my $confirmtext;
if ($caller eq 'transfer') {
$confirmtext = &mt('Transferred data in added fields to notes');
} else {
$confirmtext = &mt('Wrote Metadata');
}
$output .= &Apache::loncommon::confirmwrapper(
&Apache::lonhtmlcommon::confirm_success(
$confirmtext.' '.&Apache::lonlocal::locallocaltime(time)));
$outcome = 'ok';
}
}
return ($outcome,$output);
}
sub store_transferred_addedfields {
my ($fn,$uri,$transfers) = @_;
foreach my $item (@{$transfers}) {
$Apache::lonpublisher::metadatafields{'notes'} .=
' '.$item.' = '.$Apache::lonpublisher::metadatafields{$item};
}
my ($outcome,$output) = &store_metadata($fn,$uri,'transfer');
if ($outcome eq 'ok') {
foreach my $item (@{$transfers}) {
delete($Apache::lonpublisher::metadatafields{$item});
}
}
}
sub store_portfolio_metadata {
my ($formname,$content,$path,$new_fn,$uri,$caller) = @_;
my ($outcome,$output);
$env{'form.'.$formname}=$content."\n";
$env{'form.'.$formname.'.filename'}=$new_fn;
my $result =&Apache::lonnet::userfileupload($formname,'',$path);
if ($result =~ /(error|notfound)/) {
$output = '<p class="LC_error">';
if ($caller eq 'transfer') {
$output .=
&mt('Could not transfer data in added fields to notes');
} else {
$output .= &mt('Could not write metadata');
}
$output .= ', '.&mt('FAIL').'</p>';
$outcome = 'fail';
} else {
&update_metadata_table($uri);
$output = '<p class="LC_success">';
if ($caller eq 'transfer') {
$output .= &mt('Transferred data in added fields to notes');
} else {
$output .= &mt('Wrote Metadata');
}
$output .= ' '.&Apache::lonlocal::locallocaltime(time).
'</p>';
$outcome = 'ok';
}
return ($outcome,$output);
}
sub update_metadata_table {
my ($uri) = @_;
my ($type,$udom,$uname,$file_name,$group) =
&Apache::lonnet::parse_portfolio_url($uri);
$file_name =~ s/\.meta$//;
my $current_permissions =
&Apache::lonnet::get_portfile_permissions($udom,$uname);
my %access_controls =
&Apache::lonnet::get_access_controls($current_permissions,$group,
$file_name);
my $access_hash = $access_controls{$file_name};
my $available = 0;
if (ref($access_hash) eq 'HASH') {
foreach my $key (keys(%{$access_hash})) {
my ($num,$scope,$end,$start) =
($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
if ($scope eq 'public' || $scope eq 'guest') {
$available = 1;
last;
}
}
}
if ($available) {
my $result =
&Apache::lonnet::update_portfolio_table($uname,$udom,
$file_name,'portfolio_metadata',$group,'update');
}
}
1;
__END__
=head1 NAME
Apache::lonmeta - display meta data
=head1 SYNOPSIS
Handler to display meta data
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 SUBROUTINES
=over
=item &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}
=item dynamicmeta()
Fetch and evaluate dynamic metadata
=item access_count()
=item alttag()
Try to make an alt tag if there is none
=item authordisplay()
Author display
=item evalgraph()
Pretty display
=item diffgraph()
=item fieldnames()
=item portfolio_linked_path()
=item get_port_path_and_group()
=item portfolio_display_uri()
=item pre_select_course()
=item select_course()
=item prettyprint()
Pretty printing of metadata field
=item direct()
Pretty input of metadata field
=item selectbox()
=item relatedfield()
=item prettyinput()
=item report_bombs()
=item present_uneditable_metadata()
=item present_editable_metadata()
=item store_metadata()
=item store_transferred_addedfields()
=item store_portfolio_metadata()
=item update_metadata_table()
=back
=cut
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