--- loncom/homework/essayresponse.pm 2002/07/19 20:43:11 1.9
+++ loncom/homework/essayresponse.pm 2012/12/18 17:09:45 1.117
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# essay (ungraded) style responses
#
-# $Id: essayresponse.pm,v 1.9 2002/07/19 20:43:11 ng Exp $
+# $Id: essayresponse.pm,v 1.117 2012/12/18 17:09:45 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,56 +25,587 @@
#
# http://www.lon-capa.org/
#
-# 4/3 Guy
+
package Apache::essayresponse;
use strict;
+use Apache::lonxml();
+use Apache::lonhtmlcommon;
+use Apache::loncommon;
+use Apache::lonnet;
+use Apache::lonnavmaps;
+use Apache::lonlocal;
+use LONCAPA qw(:DEFAULT :match);
+
BEGIN {
- &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
+ &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
}
sub start_essayresponse {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $result;
- my $id = &Apache::response::start_response($parstack,$safeeval);
- if ($target eq 'meta') {
- $result=&Apache::response::meta_package_write('essayresponse');
- }
- if ($target eq 'web') {
- my $id = $Apache::inputtags::response['-1'];
- my $part= $Apache::inputtags::part;
- my $symb= &Apache::lonnet::symbread($ENV{'form.url'});
-# my $ncol= &Apache::lonnet::EXT('parameter\_$part\_$id\_maxcollaborators',$symb);
- my $ncol= &Apache::lonnet::get($symb,['parameter\_$part\_$id\_maxcollaborators']);
- $result ='<br />Collaborators: <input type="text" size="40" max="70" name="HWCOL'.
- $Apache::inputtags::response['-1'].'" /><br />'.$ncol.':<br>'.
- '(Enter collaborators using username or username@domain, e.g. smithje or doej@msu or smithje@fsu.)';
- }
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result;
+ my $id = &Apache::response::start_response($parstack,$safeeval);
+ if ($target eq 'meta') {
+ $result=&Apache::response::meta_package_write('essayresponse');
+ } elsif ($target eq 'web' &&
+ $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+ my $part= $Apache::inputtags::part;
+ my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
+ my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
+ my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
+ $uploadedfiletypes=~s/[^\w\,]//g;
+ my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
+ if (!defined($maxfilesize)) {
+ $maxfilesize = 10.0; #FIXME This should become a domain configuration
+ }
+ my $hiddendraft;
+ if (($Apache::lonhomework::type eq 'survey') ||
+ ($Apache::lonhomework::type eq 'surveycred') ||
+ ($Apache::lonhomework::type eq 'anonsurvey') ||
+ ($Apache::lonhomework::type eq 'anonsurveycred')) {
+ $hiddendraft = '<input type="hidden" name="HWDRAFT'.$part.'_'.$id.'" value="yes" />';
+ } else {
+ my $status_text = &mt('Submission type');
+ if ($Apache::lonhomework::history{"resource.$part.award"} eq 'DRAFT') {
+ $status_text .= '<br />'.&mt('(Currently -- draft)');
+ }
+ $result = &Apache::lonhtmlcommon::row_title($status_text);
+ my $closure;
+ unless ($ncol || $uploadedfiletypes) {
+ $closure = 1;
+ }
+ $result.=
+ '<label>'.
+ '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
+ &mt('Submit entries below as answer to receive credit').
+ '</label> <br />'.
+ '<label>'.
+ '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
+ &mt('Save entries below (not submitted for credit yet)').
+ '</label>'.
+ &Apache::lonhtmlcommon::row_closure($closure);
+ }
+
+ if ($ncol > 0) {
+ $result.= &Apache::lonhtmlcommon::row_title(&mt('Collaborators')).
+ '<label>'.
+ &mt('Collaborators:').' <input type="text" size="70" max="80" name="HWCOL'.
+ $part.'_'.$id.'" value="'.$coll.'" /><br />'.
+ &mt('Enter a maximum of [quant,_1,collaborator] using username or username:domain, e.g. smithje or smithje:[_2].',$ncol,$env{'user.domain'});
+ if ($ncol > 1) {
+ $result .= '<br />'.&mt('If entering more than one, use spaces to separate the collaborators.');
+ }
+ $result .= '</label><br />';
+ $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
+ $result .= &Apache::lonhtmlcommon::row_closure();
+ }
+ my $filesfrom = 'both';
+ my $stuname = &Apache::lonnet::EXT('user.name');
+ my $studom = &Apache::lonnet::EXT('user.domain');
+ if (!&Apache::lonnet::usertools_access($stuname,$studom,'portfolio')) {
+ $filesfrom = 'uploadonly';
+ }
+ $result.=&Apache::inputtags::file_selector($part,$id,$uploadedfiletypes,
+ $filesfrom,undef,$maxfilesize);
+ if ($result) {
+ $result =
+ '<div>'.$hiddendraft.
+ &Apache::lonhtmlcommon::start_pick_box().
+ $result.
+ &Apache::lonhtmlcommon::end_pick_box().'</div>';
+ } else {
+ $result = $hiddendraft;
+ }
+ } elsif ($target eq 'web' &&
+ $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
+ my $part= $Apache::inputtags::part;
+ my @msgs;
+ if ($Apache::lonhomework::history{"resource.$part.$id.collaborators"} =~ /\S/) {
+ my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
+ $result .= '<td><i>'.&mt('Collaborated with [_1]',$coll).'</i></td>';
+ }
+
+ my $current_files_display = &Apache::inputtags::current_file_submissions($part,$id);
+ if ($current_files_display) {
+ $result .= '<td><b>'.&mt('Submitted files:').'</b><br />'.
+ $current_files_display.'</td>';
+ }
+
+ if ($result ne '') {
+ $result =
+ '<table class="LC_pastsubmission"><tr>'.$result.
+ '</tr></table>';
+ }
+ }
+ return $result;
}
sub end_essayresponse {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- if ( $target eq 'grade' ) {
- if ( defined $ENV{'form.submitted'}) {
- my $id = $Apache::inputtags::response['-1'];
- my $response = $ENV{'form.HWVAL'.$id};
- my $collaborators = $ENV{'form.HWCOL'.$id};
-# my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
-# my $collaborators = $ENV{'form.HWCOL'.$Apache::inputtags::response['-1']};
- if ( $response =~ /[^\s]/) {
- my $part=$Apache::inputtags::part;
- $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
- $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}="SUBMITTED";
- $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators;
- my %previous=&Apache::response::check_for_previous($response,$part,$id);
- &Apache::response::handle_previous(\%previous,'SUBMITTED');
- }
- }
- }
- &Apache::response::end_response;
- return '';
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $part = $Apache::inputtags::part;
+ my $id = $Apache::inputtags::response[-1];
+ my $increment = &Apache::response::repetition();
+ my $result;
+ if ( $target eq 'grade' ) {
+# Deal with collaborators
+ my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};
+ my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
+ if ($collaborators ne $previous_list) {
+# &Apache::lonnet::logthis("New collaborators [$collaborators] [$previous_list]");
+ $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators;
+ }
+# Scantron
+ if ( &Apache::response::submitted('scantron') ) {
+ $increment=&Apache::response::scored_response($part,$id);
+ } elsif ( &Apache::response::submitted() ) {
+ my $response = $env{'form.HWVAL_'.$id};
+ my $jspart=$part;
+ $jspart=~s/\./_/g;
+ my $filename = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'} ||
+ $env{'form.HWFILETOOBIG'.$part.'_'.$id};
+ my $portfiles = $env{'form.HWPORT'.$jspart.'_'.$id};
+ my @deletions = &Apache::loncommon::get_env_multiple('form.HWFILE'.$jspart.'_'.$id.'_delete');
+ my ($is_submit,$was_draft);
+ if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
+ $is_submit = 1;
+ }
+ if ($Apache::lonhomework::history{"resource.$part.award"} eq 'DRAFT') {
+ $was_draft = 1;
+ }
+ if (($response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/) ||
+ (@deletions > 0) || ($was_draft && $is_submit)) {
+ my $award='DRAFT';
+ if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
+ if ($Apache::lonhomework::type eq 'anonsurvey') {
+ $award='ANONYMOUS';
+ } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
+ $award='ANONYMOUS_CREDIT';
+ } elsif ($Apache::lonhomework::type eq 'surveycred') {
+ $award='SUBMITTED_CREDIT';
+ } else {
+ $award='SUBMITTED';
+ }
+ }
+ my $uploadedflag=0;
+ my $totalsize=0;
+ &file_submission($part,$id,\$award,\$uploadedflag,\$totalsize,\@deletions);
+ $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
+ $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
+ my %previous=&Apache::response::check_for_previous($response,$part,$id);
+ if ($uploadedflag) {
+ if ($award eq 'FILENAME_INUSE') {
+ delete($Apache::lonhomework::results{"resource.$id.tries"});
+ }
+ } else {
+ &Apache::response::handle_previous(\%previous,$award);
+ }
+#
+# Store with resource author for similarity testing
+#
+ if ($award eq 'SUBMITTED') {
+ my ($symb,$crsid,$domain,$name)=
+ &Apache::lonnet::whichuser();
+ if ($crsid) {
+ my $akey=join('.',&escape($name),&escape($domain),
+ &escape($crsid));
+ my $essayurl=
+ &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
+ my ($adom,$aname,$apath)=
+ ($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
+ $apath=&escape($apath);
+ $apath=~s/\W/\_/gs;
+ &Apache::lonnet::put('nohist_essay_'.$apath,
+ { $akey => $response },$adom,$aname);
+ }
+ }
+ }
+ }
+ } elsif ($target eq 'edit') {
+ $result.=&Apache::edit::end_table();
+
+ } elsif ($target eq 'tex'
+ && $Apache::lonhomework::type eq 'exam') {
+ $result .= &Apache::inputtags::exam_score_line($target);
+
+ } elsif ($target eq 'answer') {
+ $result.=&Apache::response::answer_header($$tagstack[-1]);
+ my $answer = &mt('Essay will be hand graded.');
+ $result.=&Apache::response::answer_part($$tagstack[-1],$answer,
+ {'no_verbatim' => 1});
+ $result.=&Apache::response::answer_footer($$tagstack[-1]);
+ }
+ if ($target eq 'web') {
+ &Apache::response::setup_prior_tries_hash(\&format_prior_response,
+ ['portfiles',
+ 'uploadedurl']);
+ }
+
+ if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
+ $target eq 'tex' || $target eq 'analyze') {
+ &Apache::lonxml::increment_counter($increment, "$part.$id");
+
+ if ($target eq 'analyze') {
+ $Apache::lonhomework::analyze{"$part.$id.type"} = 'essayresponse';
+ push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
+ &Apache::lonhomework::set_bubble_lines();
+ }
+ }
+ &Apache::response::end_response;
+
+ return $result;
+}
+
+sub format_prior_response {
+ my ($mode,$answer,$other_data) = @_;
+ my $output;
+
+ my (undef,undef,$udom,$uname) = &Apache::lonnet::whichuser();
+ my $port_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
+
+ my $file_list;
+
+ foreach my $file (split(/\s*,\s*/,
+ $other_data->[0].','.$other_data->[1])) {
+ next if ($file!~/\S/);
+ if ($file !~ m{^/uploaded/}) { $file=$port_url.$file; }
+ $file=~s|/+|/|g;
+ &Apache::lonnet::allowuploaded('/adm/essayresponse',$file);
+ $file_list.='<li><span class="LC_nobreak"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
+ &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
+ '</a></span></li>'."\n";
+ }
+ if ($file_list) {
+ $output.= &mt('Submitted Files').'<ul>'.$file_list.'</ul>';
+ }
+ if ($answer =~ /\S/) {
+ $output.='<p>'.&mt('Submitted text').
+ '<blockquote>'.$answer.'</blockquote></p>';
+ }
+
+ return '<div class="LC_prior_essay">'.$output.'</div>';
+}
+
+sub file_submission {
+ my ($part,$id,$award,$uploadedflag,$totalsize,$deletions)=@_;
+ my $files;
+ my $jspart=$part;
+ $jspart=~s/\./_/g;
+ my ($symb,$crsid,$udom,$uname) = &Apache::lonnet::whichuser();
+ my %crsinfo = &Apache::lonnet::coursedescription($crsid);
+ my $cdom = $crsinfo{'domain'};
+ my $cnum = $crsinfo{'num'};
+ my (@portfiles,$uploadedurl,@submitted_portfiles,$submitted_upload,
+ @acceptable_portfiles,$acceptable_upload,@accepted_portfiles,
+ $accepted_upload,@savedportfiles,$stored_upload,@tolock,
+ %port_delete,$uploaded_delete);
+ if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"} ||
+ $Apache::lonhomework::history{"resource.$part.$id.uploadedurl"}) {
+ if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}) {
+ @portfiles = split(/,/,$Apache::lonhomework::history{"resource.$part.$id.portfiles"});
+ }
+ $uploadedurl = $Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
+ if (ref($deletions) eq 'ARRAY') {
+ if (@{$deletions} > 0) {
+ foreach my $file (@{$deletions}) {
+ $file = &HTML::Entities::decode($file);
+ if (grep(/^\Q$file\E$/,@portfiles)) {
+ $port_delete{$file} = 1;
+ } elsif ($file =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/essayresponse/\Q$cdom\E/\Q$cnum\E/}) {
+ $uploaded_delete = $file;
+ } elsif ($file =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/essayresponse/[^/]+$}) {
+ $uploaded_delete = $file;
+ }
+ }
+ }
+ }
+ foreach my $current (@portfiles) {
+ unless ($port_delete{$current}) {
+ push(@savedportfiles,$current);
+ }
+ }
+ if ($uploaded_delete) {
+ if ($uploaded_delete eq $uploadedurl) {
+ $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"} = "";
+ $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"} = "";
+ } else {
+ undef($uploaded_delete);
+ }
+ }
+ }
+ if ($env{'form.HWPORT'.$jspart.'_'.$id} ne '') {
+ my $newfiles= $env{'form.HWPORT'.$jspart.'_'.$id};
+ $newfiles =~s/,$//;
+ if ($newfiles =~ /[^\s]/) {
+ foreach my $file (split(/\s*,\s*/,$newfiles)) {
+ if ($file =~ /[^\s]/) {
+ push(@submitted_portfiles,$file);
+ }
+ }
+ }
+ }
+ if ($env{'form.HWFILETOOBIG'.$part.'_'.$id} ne '') {
+ $$award = 'EXCESS_FILESIZE';
+ } elsif ($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'} ne '') {
+ my $newfile = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'};
+ if ($newfile =~ /[^\s]/) {
+ $submitted_upload = $newfile;
+ }
+ }
+ if (@savedportfiles) {
+ foreach my $file (reverse(@savedportfiles)) {
+ unless(grep(/^\Q$file\E$/,@submitted_portfiles)) {
+ unshift(@submitted_portfiles,$file);
+ }
+ }
+ }
+ if (@submitted_portfiles || $submitted_upload) {
+ my $uploadedfiletypes=
+ &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
+ if ($uploadedfiletypes ne '') {
+ $uploadedfiletypes=~s/[^\w\,]//g;
+ $uploadedfiletypes=','.$uploadedfiletypes.',';
+ if (@submitted_portfiles) {
+ foreach my $file (@submitted_portfiles) {
+ my ($extension)=($file=~/\.(\w+)$/);
+ if ($uploadedfiletypes=~/\,\s*\Q$extension\E\s*\,/i) {
+ push(@acceptable_portfiles,$file);
+ }
+ }
+ }
+ if ($submitted_upload) {
+ my ($upload_ext)=($submitted_upload=~/\.(\w+)$/);
+ if ($uploadedfiletypes=~/\,\s*\Q$upload_ext\E\s*\,/i) {
+ $acceptable_upload = $submitted_upload;
+ } else {
+ $$award='INVALID_FILETYPE';
+ &delete_form_items($jspart,$id);
+ }
+ }
+ } else {
+ @acceptable_portfiles = @submitted_portfiles;
+ $acceptable_upload = $submitted_upload;
+ }
+ }
+ if ((@acceptable_portfiles) || ($acceptable_upload ne '')) {
+ my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
+ if (!$maxfilesize) {
+ $maxfilesize = 10.0; #FIXME This should become a domain configuration
+ }
+ my %dirlist;
+ if (@acceptable_portfiles) {
+ foreach my $file (@acceptable_portfiles) {
+ my ($path,$filename) = ($file =~ m{^(.*/)([^/]+)$});
+ my $fullpath = '/userfiles/portfolio'.$path;
+ if (!exists($dirlist{$fullpath})) {
+ my ($listref,$listerror) =
+ &Apache::lonnet::dirlist($fullpath,$udom,$uname,1);
+ if (ref($listref) eq 'ARRAY') {
+ $dirlist{$fullpath} = $listref;
+ }
+ }
+ if (ref($dirlist{$fullpath}) eq 'ARRAY') {
+ foreach my $dir_line (@{$dirlist{$fullpath}}) {
+ my ($fname,$dom,undef,$testdir,undef,undef,undef,undef,
+ $size,undef,$mtime,undef,undef,undef,$obs,undef) =
+ split(/\&/,$dir_line,16);
+ if ($filename eq $fname) {
+ my $mbsize = $size/(1024.0*1024.0);
+ if (ref($totalsize)) {
+ $$totalsize += $mbsize;
+ }
+ last;
+ }
+ }
+ }
+ if (ref($totalsize)) {
+ if ($$totalsize > $maxfilesize) {
+ $$award='EXCESS_FILESIZE';
+ &delete_form_items($jspart,$id);
+ } else {
+ push(@accepted_portfiles,$file);
+ }
+ } else {
+ push(@accepted_portfiles,$file);
+ }
+ }
+ }
+ if ($acceptable_upload ne '') {
+ if (ref($totalsize)) {
+ $$totalsize += $env{'form.HWFILESIZE'.$jspart.'_'.$id};
+ if ($$totalsize > $maxfilesize) {
+ $$award='EXCESS_FILESIZE';
+ delete($env{'form.HWFILE'.$jspart.'_'.$id});
+ } else {
+ $accepted_upload = $acceptable_upload;
+ }
+ } else {
+ $accepted_upload = $acceptable_upload;
+ }
+ }
+ }
+ if ($accepted_upload ne '') {
+ my ($path,$multiresp) =
+ &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom,
+ 'submission');
+ if ($path eq '') {
+ $$award = 'INTERNAL_ERROR';
+ } else {
+ if ($multiresp) {
+ $path .= '/'.$jspart.'_'.$id;
+ }
+ my $prefix = 'portfolio';
+ my $formelement = 'HWFILE'.$jspart.'_'.$id;
+ my $fname = &Apache::lonnet::clean_filename($env{'form.'.$formelement.'.filename'});
+ my $url = '/uploaded/'.$udom.'/'.$uname.'/'.$prefix.$path.'/'.$fname;
+ my @stat = &Apache::lonnet::stat_file($url);
+ my $conflicts = 0;
+ if (@stat && $stat[0] ne 'no_such_dir') {
+ my $current_permissions =
+ &Apache::lonnet::get_portfile_permissions($udom,$uname);
+ if (ref($current_permissions) eq 'HASH') {
+ if (ref($current_permissions->{$path.'/'.$fname}) eq 'ARRAY') {
+ foreach my $record (@{$current_permissions->{$path.'/'.$fname}}) {
+ if (ref($record) eq 'ARRAY') {
+ next if (($record->[0] eq $symb) &&
+ ($record->[1] eq $crsid));
+ $conflicts ++;
+ }
+ }
+ }
+ }
+ if ($conflicts) {
+ $$award = 'FILENAME_INUSE';
+ }
+ }
+ unless ($conflicts) {
+ my ($mode,%allfiles,%codebase);
+ my $result = &Apache::lonnet::userfileupload($formelement,'',
+ $prefix.$path,$mode,\%allfiles,\%codebase);
+ if ($result =~ m{^/uploaded/}) {
+ $stored_upload = $path.'/'.$fname;
+ unless (grep(/^\Q$stored_upload\E$/,@accepted_portfiles)) {
+ $Apache::lonhomework::results{"resource.$part.$id.portfiles"} = $stored_upload;
+ push(@tolock,$stored_upload);
+ }
+ } else {
+ $$award = 'INTERNAL_ERROR';
+ }
+ }
+ }
+ delete($env{'form.HWFILE'.$jspart.'_'.$id});
+ }
+ if (@accepted_portfiles) {
+ if ($Apache::lonhomework::results{"resource.$part.$id.portfiles"}) {
+ $Apache::lonhomework::results{"resource.$part.$id.portfiles"} .= ',';
+ }
+ $Apache::lonhomework::results{"resource.$part.$id.portfiles"}.=join(',',@accepted_portfiles);
+ push(@tolock,@accepted_portfiles);
+ }
+ if (!defined($Apache::lonhomework::results{"resource.$part.$id.portfiles"})) {
+ if (keys(%port_delete) > 0) {
+ $Apache::lonhomework::results{"resource.$part.$id.portfiles"} = "";
+ }
+ }
+ if (($Apache::lonhomework::history{"resource.$part.$id.portfiles"} ne
+ $Apache::lonhomework::results{"resource.$part.$id.portfiles"}) ||
+ ($uploaded_delete)) {
+ if (ref($uploadedflag)) {
+ $$uploadedflag=1;
+ }
+ }
+ &Apache::lonnet::unmark_as_readonly($udom,$uname,[$symb,$crsid]);
+ &Apache::lonnet::mark_as_readonly($udom,$uname,[@tolock],[$symb,$crsid]);
+ &Apache::lonnet::clear_selected_files($uname);
+ return;
+}
+
+sub delete_form_items {
+ my ($jspart,$id) = @_;
+ delete($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
+ delete($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
+ delete($env{'form.HWFILE'.$jspart.'_'.$id});
+}
+
+sub check_collaborators {
+ my ($ncol,$coll) = @_;
+ my %classlist=&Apache::lonnet::dump('classlist',
+ $env{'course.'.$env{'request.course.id'}.'.domain'},
+ $env{'course.'.$env{'request.course.id'}.'.num'});
+ my (@badcollaborators,$result);
+
+ my (@collaborators) = split(/[,;\s]+/,$coll);
+ foreach my $entry (@collaborators) {
+ my $collaborator;
+ if ($entry =~ /:/) {
+ $collaborator = $entry;
+ } else {
+ $collaborator = $entry.':'.$env{'user.domain'};
+ }
+ if ($collaborator !~ /^$match_username:$match_domain$/) {
+ if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
+ push(@badcollaborators,$entry);
+ }
+ } elsif (!grep(/^\Q$collaborator\E$/i,keys(%classlist))) {
+ if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
+ push(@badcollaborators,$entry);
+ }
+ }
+ }
+
+ my $numbad = scalar(@badcollaborators);
+ if ($numbad) {
+ $result = '<table border="0"><tr bgcolor="#ffbbbb"><td>';
+ if ($numbad == 1) {
+ $result .= &mt('The following user is invalid:');
+ } else {
+ $result .= &mt('The following [_1] users are invalid:',$numbad);
+ }
+ $result .= ' '.join(', ',@badcollaborators).'. '.&mt('Please correct.').
+ '</td></tr></table>';
+ }
+ my $toomany = scalar(@collaborators) - $ncol;
+ if ($toomany > 0) {
+ $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
+ &mt('You have too many collaborators.').' '.
+ &mt('Please remove [quant,_1,collaborator].',$toomany).
+ '</td></tr></table>';
+ }
+ return $result;
}
1;
__END__
+
+
+=pod
+
+=head1 NAME
+
+Apache::essayresponse
+
+=head1 SYNOPSIS
+
+Handler to evaluate essay (ungraded) style responses.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 SUBROUTINES
+
+=over
+
+=item start_essayresponse()
+
+=item end_essayresponse()
+
+=item format_prior_response()
+
+=item file_submission()
+
+=item delete_form_items()
+
+=item check_collaborators()
+
+=back
+
+=cut