--- loncom/interface/lonmeta.pm 2001/12/25 21:02:35 1.13 +++ loncom/interface/lonmeta.pm 2009/05/27 13:29:47 1.233 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Metadata display handler # -# $Id: lonmeta.pm,v 1.13 2001/12/25 21:02:35 www Exp $ +# $Id: lonmeta.pm,v 1.233 2009/05/27 13:29:47 bisitz Exp $ # # Copyright Michigan State University Board of Trustees # @@ -17,290 +17,1674 @@ # 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; +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 +# 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 ($adomain,$aauthor)=($url=~/^($match_domain)\/($match_username)\//); + 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{$1}.='
'.$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('-------------------'); + } + 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}; } - 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 { - $returnhash{$_}=$sum{$_}; - } +} + +# 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 $alttag; + } else { + return &mt('No information available'); } - return %returnhash; } -# -------------------------------------------------------------- Pretty display +# Author display +sub authordisplay { + my ($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.=''; } - $output.='
  '.(' ' x2).'           '.(' ' x2).' ('.$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 +# 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('
'); + $r->print('

'.&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".',''.$res_uri.'').'

'); + $output = &select_course(); + $r->print($output.'
'); + $r->print(''); + $r->print(''); + $r->print('
'); + + my ($port_path,$group) = &get_port_path_and_group($uri); + my $group_input; + if ($group) { + $group_input = ''; + } + $r->print('

'. + ''. + $group_input. + ''. + '
'); + + 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(). + ''. + $field_name.''.$value.''. + &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).'
'."\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.').'

'. + &Apache::loncommon::start_data_table(). + &Apache::loncommon::start_data_table_header_row(). + 'Copy to notes?'."\n". + 'Field name'."\n". + 'Values'."\n". + &Apache::loncommon::end_data_table_header_row(). + $transfernotes. + &Apache::loncommon::end_data_table().'
'; + } + } + } + } + $output .= '
'; + return ($output); +} +# Pretty printing of metadata field + +sub prettyprint { + my ($type,$value,$target,$prefix,$form,$noformat)=@_; +# $target,$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 ' '. + &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 (! $env{'user.adv'}) { + return '- '.&mt('not displayed').' -'; + } + # File + if (($type eq 'customdistributionfile') || + ($type eq 'obsoletereplacement') || + ($type eq 'goto_list') || + ($type eq 'comefrom_list') || + ($type eq 'sequsage_list') || + ($type eq 'dependencies')) { + return ''; + } + # Evaluations + if (($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=''; + } + # No pretty print found + return $value; +} + +# Pretty input of metadata field +sub direct { + return shift; +} + +sub selectbox { + my ($name,$value,$functionref,@idlist)=@_; + if (! defined($functionref)) { + $functionref=\&direct; + } + my $selout=''; +} + +sub relatedfield { + my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_; + if (! $relatedsearchflag) { + return ''; + } + if (! defined($relatedsep)) { + $relatedsep=' '; + } + if (! $show) { + return $relatedsep.' '; + } + return $relatedsep.''; +} + +sub prettyinput { + my ($type,$value,$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 (''); + } + 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) { + $output .= ''. + &relatedfield(1,$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, + $value, + \&Apache::loncommon::copyrightdescription, + (&Apache::loncommon::copyrightids)). + &relatedfield(0,$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 ''. + &relatedfield(0,$relatedsearchflag,$relatedsep); + } + # Obsolete replacement file + if ($type eq 'obsoletereplacement') { + return '".&mt('Select').''. + &relatedfield(0,$relatedsearchflag,$relatedsep); + } + # Customdistribution file + if ($type eq 'customdistributionfile') { + return '".&mt('Select').''. + &relatedfield(0,$relatedsearchflag,$relatedsep); + } + # Source Customdistribution file + if ($type eq 'sourcerights') { + return '".&mt('Select').''. + &relatedfield(0,$relatedsearchflag,$relatedsep); + } + if ($type eq 'courserestricted') { + return (&select_course()); + #return (''); + } + + # 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; + $value=~s/\"/\"\;/gs; + return + ''. + &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname, + $relatedvalue); +} + +# Main Handler sub handler { - my $r=shift; - my %content=(); + my $r=shift; + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['currentpath','changecourse']); + 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)\//); + if ($uri=~m:/adm/bombs/(.*)$:) { + $r->print(&Apache::loncommon::start_page('Error Messages')); + # Looking for all bombs? + &report_bombs($r,$uri); + } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/portfolio/|) { + ($resdomain,$resuser)= + (&Apache::lonnet::declutter($uri)=~m|^($match_domain)/($match_name)/portfolio|); + $r->print(&Apache::loncommon::start_page('Edit Portfolio File Metadata', + undef, + {'domain' => $resdomain,})); + if ($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/|) { + $r->print(&Apache::loncommon::start_page('Edit Group Portfolio File Metadata', + undef, + {'domain' => $resdomain,})); + &present_editable_metadata($r,$uri,'groups'); + } elsif ($uri=~m|^/~|) { + # Construction space + $r->print(&Apache::loncommon::start_page('Edit Metadata', + "\n".'', + {'domain' => $resdomain,})); + &present_editable_metadata($r,$uri); + } else { + $r->print(&Apache::loncommon::start_page('Metadata', + undef, + {'domain' => $resdomain,})); + &present_uneditable_metadata($r,$uri); + } + $r->print(&Apache::loncommon::end_page()); + return OK; +} + +##################################################### +##################################################### +### ### +### Report Bombs ### +### ### +##################################################### +##################################################### +sub report_bombs { + my ($r,$uri) = @_; + # Set document type + $uri =~ s:/adm/bombs/::; + $uri = &Apache::lonnet::declutter($uri); + $r->print('

'.&Apache::lonnet::clutter($uri).'

'); + my ($domain,$author)=($uri=~/^($match_domain)\/($match_username)\//); + if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) { + if ($env{'form.clearbombs'}) { + &Apache::lonmsg::clear_author_res_msg($uri); + } + my $clear=&mt('Clear all Messages in Subdirectory'); + my $cancel=&mt('Back to Directory'); + my $cancelurl=$uri; + $cancelurl=~s/^\Q$domain\E/\/priv/; + $r->print(< + +$cancel +
+ENDCLEAR + my %brokenurls = + &Apache::lonmsg::all_url_author_res_msg($author,$domain); + foreach my $key (sort(keys(%brokenurls))) { + if ($key=~/^\Q$uri\E/) { + $r->print + (''.$key.''. + &Apache::lonmsg::retrieve_author_res_msg($key). + '
'); + } + } + } else { + $r->print(&mt('Not authorized')); + } + return; +} -# ----------------------------------------------------------- Set document type +##################################################### +##################################################### +### ### +### Uneditable Metadata Display ### +### ### +##################################################### +##################################################### +sub present_uneditable_metadata { + my ($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 { + $versiondisplay='Version: '.$currentversion; + } + } + # crumbify displayed URL uri target prefix form size + $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1'); + $disuri =~ s:
::g; + # obsolete + my $obsolete=$content{'obsolete'}; + my $obsoletewarning=''; + if (($obsolete) && ($env{'user.adv'})) { + $obsoletewarning='

'. + &mt('This resource has been marked obsolete by the author(s)'). + '

'; + } + # + my %lt=&fieldnames(); + my $table=''; + my $title = $content{'title'}; + if (! defined($title)) { + $title = 'Untitled Resource'; + } + my @fields; + if ($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("

$title

" + .'

' + .$disuri.'
' + .$obsoletewarning + .$versiondisplay + .'

' + .&Apache::lonhtmlcommon::start_pick_box() + .$table + .&Apache::lonhtmlcommon::end_pick_box() + ); + if (!$uploaded && $env{'user.adv'}) { + &print_dynamic_metadata($r,$uri,\%content); + } + return; +} - $r->content_type('text/html'); - $r->send_http_header; +sub print_dynamic_metadata { + my ($r,$uri,$content) = @_; + # + my %content = %$content; + my %lt=&fieldnames(); + # + my $description = 'Dynamic Metadata (updated periodically)'; + $r->print('

'.&mt($description).'

'. + &mt('Processing')); + $r->rflush(); + my %items=&fieldnames(); + my %dynmeta=&dynamicmeta($uri); + # + # General Access and Usage Statistics + $r->print('

'.&mt('Access and Usage Statistics').'

'); + 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('

' + .&mt('No Access or Usages Statistics are available for this resource.') + .'

' + ); + } + # + # Assessment statistics + if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) { + if (exists($dynmeta{'stdno'}) || + exists($dynmeta{'avetries'}) || + exists($dynmeta{'difficulty'}) || + exists($dynmeta{'disc'})) { + # This is an assessment, print assessment data + $r->print('

'. + &mt('Overall Assessment Statistical Data'). + '

'. + &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('

' + .&mt('Recent Detailed Assessment Statistical Data') + .'

' + ); + if (exists($dynmeta{'stats'})) { + my $table=&Apache::loncommon::start_data_table() + .&Apache::loncommon::start_data_table_header_row() + .''.&mt('Course').'' + .''.&mt('Section(s)').'' + .''.&mt('Num Students').'' + .''.&mt('Mean Tries').'' + .''.&mt('Degree of Difficulty').'' + .''.&mt('Degree of Discrimination').'' + .''.&mt('Time of computation').'' + .&Apache::loncommon::end_data_table_header_row().$/; + 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(); + $table .= + ''.$courseinfo{'description'}.''; + $table .= + ''.$data->{'sections'}.''; + $table .= + ''.$data->{'stdno'}.''; + foreach my $item ('avetries','difficulty','disc') { + $table .= ''; + if (exists($data->{$item})) { + $table .= sprintf('%.2f',$data->{$item}).' '; + } else { + $table .= ''; + } + $table .= ''; + } + $table .= + ''. + &Apache::lonlocal::locallocaltime($data->{'timestamp'}). + ''; + $table .= &Apache::loncommon::end_data_table_row().$/; + } + $table .= &Apache::loncommon::end_data_table().$/; + $r->print($table); + } else { + $r->print('

' + .&mt('No new dynamic data found.') + .'

' + ); + } + } else { + $r->print('

'. + &mt('No Assessment Statistical Data is available for this resource'). + '

'); + } - 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 { - $content{$_}='- not displayed -'; - } ('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(<Catalog Information - -

Catalog Information

-

$content{'title'}

-

$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'}); - 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('

Dynamic Metadata (updated periodically)

'); - 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 $otherinfo=''; - map { - if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) { - $otherinfo.=' '.$_.'='. - &Apache::lonnet::metadata($uri,$name.'.'.$_).'; '; - } - } ('name','part','type','default'); - $r->print(''.$display.': '.$content{$name}); - if ($otherinfo) { - $r->print(' ('.$otherinfo.')'); - } - $r->print("
\n"); - } - } - $r->print(''); - return OK; + # + # Evaluation Data + $r->print('

'.&mt('Evaluation Data').'

'); + 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('

' + .&mt('No Evaluation Data is available for this resource.') + .'

' + ); + } + # 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('

'.&mt('Evaluation Comments').'

' + .'
(' + .&mt('visible to author and co-authors only') + .')
' + ); + if (exists($dynmeta{'comments'})) { + $r->print('
'.$dynmeta{'comments'}.'
'); + } else { + $r->print('

' + .&mt('There are no Evaluation Comments on this resource.') + .'

' + ); + } + my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri); + if (defined($bombs) && $bombs ne '') { + $r->print('' + .'

'.&mt('Error Messages').'

' + .'
(' + .&mt('visible to author and co-authors only') + .')
' + .$bombs + ); + } #else { + # $r->print('

'.&mt('There are currently no Error Messages for this resource.').'

'); + #} + } + # + # All other stuff + $r->print('

'. + &mt('Additional Metadata (non-standard, parameters, exports)'). + '

'); + $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) = @_; + # Construction Space Call + # Header + my $disuri=$uri; + 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) { + my $showdel=1; + if ($env{'form.delmsg'}) { + if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') { + $bombs=&mt('Messages deleted.'); + $showdel=0; + } else { + $bombs=&mt('Error deleting messages'); + } + } + if ($env{'form.clearmsg'}) { + my $cleardir=$target; + $cleardir=~s/\/[^\/]+$/\//; + if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') { + $bombs=&mt('Messages cleared.'); + $showdel=0; + } else { + $bombs=&mt('Error clearing messages'); + } + } + my $del=&mt('Delete Messages for this Resource'); + my $clear=&mt('Clear all Messages in Subdirectory'); + my $goback=&mt('Back to Source File'); + $r->print(<$disuri +
+ENDBOMBS + if ($showdel) { + $r->print(< + +ENDDEL + } else { + $r->print('

'.$goback.'

'); + if ($env{'form.clearmsg'}) { + my ($diruri) = ($disuri =~ m{(.*/)[^/]*}); + $r->print('

'. + &mt('Back To Directory').'

'); + } + } + $r->print('
'.$bombs); + } else { + my $displayfile=&mt('Metadata for [_1]',$disuri); + if ($disuri=~/\/default$/) { + my $dir=$disuri; + $dir=~s/default$//; + $displayfile=&mt('Default Metadata for Directory [_1]' + ,''.$dir.''); + } + %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($result); + } + if ($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); + } + } + } + $r->print(<$displayfile

+ +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{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'})); + } else { + # no saved field list, use default list + @fields = ('author','title','subject','keywords','abstract', + 'notes','lowestgradelevel', + 'highestgradelevel','standards'); + if ($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 = ('author','title','subject','keywords','abstract','notes', + 'copyright','customdistributionfile','language', + 'standards', + 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights', + 'obsolete','obsoletereplacement'); + } + if (! $Apache::lonpublisher::metadatafields{'copyright'}) { + $Apache::lonpublisher::metadatafields{'copyright'}= + 'default'; + } + if (($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]', + ''. + $env{$Apache::lonpublisher::metadatafields{'courserestricted'}. + ".description"}. + '').'
'); + } else { + $r->print(&mt('Associated with course [_1]', + ''. + $env{$Apache::lonpublisher::metadatafields{'courserestricted'}. + ".description"}.'').'
'); + } + } else { + $r->print(''.&mt('This resource is not associated with a course.').'
'); + } + } + 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}, + '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}, + '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 = '

'; + $r->print($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(''); + } + $r->print(''); + $r->print('

'); + if ($group ne '') { + $r->print(''); + } + $r->print(''. + ''); + } + } + + $r->print('
'); + + return; +} + +sub store_metadata { + my ($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')); + } + 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{$unikey},'<>&"'). + ''; + } + if ($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 .= '

'; + 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').'

'; + $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 = '

'; + 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').'

'; + $outcome = 'fail'; + } else { + &update_metadata_table($uri); + $output = '

'; + if ($caller eq 'transfer') { + $output .= &mt('Transferred data in added fields to notes'); + } else { + $output .= &mt('Wrote Metadata'); + } + $output .= ' '.&Apache::lonlocal::locallocaltime(time). + '

'; + $outcome = 'ok'; + } + return ($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