File:
[LON-CAPA] /
loncom /
homework /
lonhomework.pm
Revision
1.314:
download - view:
text,
annotated -
select for diffs
Fri Jul 3 14:52:47 2009 UTC (15 years, 10 months ago) by
bisitz
Branches:
MAIN
CVS tags:
HEAD
- Use new Box style for problem template list
(not so) quick and (not so) dirty solution: way of building categories and two columns should be revisited.
- Corrected nested tags issue (a / font)
- Replaced font tag by style
- XHTML: Replaced "<p><form..." by "<div></form..."
- Corrected unbalanced tags (added missing <div>)
- Use info style for info message about what to do
# The LearningOnline Network with CAPA
# The LON-CAPA Homework handler
#
# $Id: lonhomework.pm,v 1.314 2009/07/03 14:52:47 bisitz 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::lonhomework;
use strict;
use Apache::style();
use Apache::lonxml();
use Apache::lonnet;
use Apache::lonplot();
use Apache::inputtags();
use Apache::structuretags();
use Apache::randomlabel();
use Apache::response();
use Apache::hint();
use Apache::outputtags();
use Apache::caparesponse();
use Apache::radiobuttonresponse();
use Apache::optionresponse();
use Apache::imageresponse();
use Apache::essayresponse();
use Apache::externalresponse();
use Apache::rankresponse();
use Apache::matchresponse();
use Apache::chemresponse();
use Apache::drawimage();
use Apache::Constants qw(:common);
use Apache::loncommon();
use Apache::lonlocal;
use Time::HiRes qw( gettimeofday tv_interval );
use HTML::Entities();
use File::Copy();
# FIXME - improve commenting
BEGIN {
&Apache::lonxml::register_insert();
}
=pod
=item set_bubble_lines()
Called at analysis time to set the bubble lines
hash for the problem.. This should be called in the
end_problemtype tag in analysis mode.
We fetch the hash of part id counters from lonxml
and push them into analyze:{part_id.bubble_lines}.
=cut
sub set_bubble_lines {
my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
foreach my $key (keys(%bubble_counters)) {
$Apache::lonhomework::analyze{"$key.bubble_lines"} =
$bubble_counters{"$key"};
}
}
#
# Decides what targets to render for.
# Implicit inputs:
# Various session environment variables:
# request.state - published - is a /res/ resource
# uploaded - is a /uploaded/ resource
# contruct - is a /priv/ resource
# form.grade_target - a form parameter requesting a specific target
sub get_target {
&Apache::lonxml::debug("request.state = $env{'request.state'}");
if( defined($env{'form.grade_target'})) {
&Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
} else {
&Apache::lonxml::debug("form.grade_target <undefined>");
}
if (($env{'request.state'} eq "published") ||
($env{'request.state'} eq "uploaded")) {
if ( defined($env{'form.grade_target'} )
&& ($env{'form.grade_target'} eq 'tex')) {
return ($env{'form.grade_target'});
} elsif ( defined($env{'form.grade_target'} )
&& ($Apache::lonhomework::viewgrades eq 'F' )) {
return ($env{'form.grade_target'});
} elsif ( $env{'form.grade_target'} eq 'webgrade'
&& ($Apache::lonhomework::queuegrade eq 'F' )) {
return ($env{'form.grade_target'});
}
if ($env{'form.webgrade'} &&
($Apache::lonhomework::modifygrades eq 'F'
|| $Apache::lonhomework::queuegrade eq 'F' )) {
return ('grade','webgrade');
}
if ( defined($env{'form.submitted'}) &&
( !defined($env{'form.newrandomization'}))) {
return ('grade', 'web');
} else {
return ('web');
}
} elsif ($env{'request.state'} eq "construct") {
if ( defined($env{'form.grade_target'}) ) {
return ($env{'form.grade_target'});
}
if ( defined($env{'form.preview'})) {
if ( defined($env{'form.submitted'})) {
return ('grade', 'web');
} else {
return ('web');
}
} else {
if ($env{'form.problemstate'} eq 'WEB_GRADE') {
#$env{'form.webgrade'} = 'yes';
return ('grade','webgrade','answer');
} elsif (($env{'form.problemmode'} eq 'view') ||
($env{'form.problemmode'} eq 'discard')) {
if ( defined($env{'form.submitted'}) &&
(!defined($env{'form.resetdata'})) &&
(!defined($env{'form.newrandomization'}))) {
return ('grade', 'web','answer');
} else {
return ('web','answer');
}
} elsif ($env{'form.problemmode'} eq 'edit') {
if ( $env{'form.submitted'} eq 'edit' ) {
if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
return ('modified','web','answer');
} else {
return ('modified','no_output_web','edit');
}
} else {
return ('no_output_web','edit');
}
} else {
return ('web');
}
}
}
return ();
}
sub setup_vars {
my ($target) = @_;
return ';'
# return ';$external::target='.$target.';';
}
sub createmenu {
my ($which,$request)=@_;
if ($which eq 'grade') {
$request->print('<script type="text/javascript" language="JavaScript">
hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
"height=350,width=150,menubar=no");
</script>');
}
}
sub proctor_checked_in {
my ($slot_name,$slot,$type)=@_;
my @possible_proctors=split(",",$slot->{'proctor'});
return 1 if (!@possible_proctors);
my $key;
if ($type eq 'Task') {
my $version=$Apache::lonhomework::history{'resource.0.version'};
$key ="resource.$version.0.checkedin";
} elsif ($type eq 'problem') {
$key ='resource.0.checkedin';
}
# backward compatability, used to be username@domain,
# now is username:domain
my $who = $Apache::lonhomework::history{$key};
if ($who !~ /:/) {
$who =~ tr/@/:/;
}
foreach my $possible (@possible_proctors) {
if ($who eq $possible
&& $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
return 1;
}
}
return 0;
}
sub check_slot_access {
my ($id,$type)=@_;
# does it pass normal muster
my ($status,$datemsg)=&check_access($id);
my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
if ($useslots ne 'resource' && $useslots ne 'map'
&& $useslots ne 'map_map') {
return ($status,$datemsg);
}
if ($status eq 'SHOW_ANSWER' ||
$status eq 'CLOSED' ||
$status eq 'INVALID_ACCESS' ||
$status eq 'UNAVAILABLE') {
return ($status,$datemsg);
}
if ($env{'request.state'} eq "construct") {
return ($status,$datemsg);
}
if ($type eq 'Task') {
my $version=$Apache::lonhomework::history{'resource.version'};
if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
$Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
return ('SHOW_ANSWER');
}
}
my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
my $available = &Apache::lonnet::EXT("resource.0.available");
my @slots= (split(':',$availablestudent),split(':',$available));
# if (!@slots) {
# return ($status,$datemsg);
# }
my $slotstatus='NOT_IN_A_SLOT';
my ($returned_slot,$slot_name);
foreach my $slot (@slots) {
$slot =~ s/(^\s*|\s*$)//g;
&Apache::lonxml::debug("getting $slot");
my %slot=&Apache::lonnet::get_slot($slot);
&Apache::lonhomework::showhash(%slot);
if ($slot{'starttime'} < time &&
$slot{'endtime'} > time &&
&Apache::loncommon::check_ip_acc($slot{'ip'})) {
&Apache::lonxml::debug("$slot is good");
$slotstatus='NEEDS_CHECKIN';
$returned_slot=\%slot;
$slot_name=$slot;
last;
}
}
if ($slotstatus eq 'NEEDS_CHECKIN' &&
&proctor_checked_in($slot_name,$returned_slot,$type)) {
&Apache::lonxml::debug("protoctor checked in");
$slotstatus='CAN_ANSWER';
}
my ($is_correct,$got_grade,$checkedin);
if ($type eq 'Task') {
my $version=$Apache::lonhomework::history{'resource.0.version'};
$got_grade =
($Apache::lonhomework::history{"resource.$version.0.status"}
=~ /^(?:pass|fail)$/);
$is_correct =
($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
|| $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
$checkedin =
$Apache::lonhomework::history{"resource.$version.0.checkedin"};
} elsif ($type eq 'problem') {
$got_grade = 1;
$checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
$is_correct =
($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
}
&Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
# no slot is currently open, and has been checked in for this version
# but hasn't got a grade, therefore must be awaiting a grade
if (!defined($slot_name)
&& $checkedin
&& !$got_grade) {
return ('WAITING_FOR_GRADE');
}
# Previously used slot is no longer open, and has been checked in for this version.
# However, the problem is not closed, and potentially, another slot might be
# used to gain access to it to work on it, until the due date is reached, and the
# problem then becomes CLOSED. Therefore return the slotstatus -
# (which will be NOT_IN_SLOT).
if (!defined($slot_name)
&& $checkedin
&& $type eq 'problem') {
return ($slotstatus);
}
if ($slotstatus eq 'NOT_IN_A_SLOT'
&& $checkedin ) {
if ($got_grade) {
return ('SHOW_ANSWER');
} else {
return ('WAITING_FOR_GRADE');
}
}
if ( $is_correct) {
if ($type eq 'problem') {
return ($status);
}
return ('SHOW_ANSWER');
}
if ( $status eq 'CANNOT_ANSWER' &&
($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
return ($status,$datemsg);
}
return ($slotstatus,$datemsg,$slot_name,$returned_slot);
}
# JB, 9/24/2002: Any changes in this function may require a change
# in lonnavmaps::resource::getDateStatus.
sub check_access {
my ($id) = @_;
my $date ='';
my $status;
my $datemsg = '';
my $lastdate = '';
my $type;
my $passed;
if ($env{'request.state'} eq "construct") {
if ($env{'form.problemstate'}) {
if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
&& &hide_problem_status())) {
return ('CANNOT_ANSWER',
&mt('is in this state due to author settings.'));
}
} else {
return ($env{'form.problemstate'},
&mt('is in this state due to author settings.'));
}
}
&Apache::lonxml::debug("in construction ignoring dates");
$status='CAN_ANSWER';
$datemsg=&mt('is in under construction');
# return ($status,$datemsg);
}
&Apache::lonxml::debug("checking for part :$id:");
&Apache::lonxml::debug("time:".time);
my ($symb)=&Apache::lonnet::whichuser();
&Apache::lonxml::debug("symb:".$symb);
#if ($env{'request.state'} ne "construct" && $symb ne '') {
if ($env{'request.state'} ne "construct") {
my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
my $allowed=&Apache::loncommon::check_ip_acc($idacc);
if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
$status='INVALID_ACCESS';
$date=&mt("can not be accessed from your location.");
return($status,$date);
}
foreach my $temp ("opendate","duedate","answerdate") {
$lastdate = $date;
if ($temp eq 'duedate') {
$date = &due_date($id);
} else {
$date = &Apache::lonnet::EXT("resource.$id.$temp");
}
my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
if ($thistype =~ /^(con_lost|no_such_host)/ ||
$date =~ /^(con_lost|no_such_host)/) {
$status='UNAVAILABLE';
$date=&mt("may open later.");
return($status,$date);
}
if ($thistype eq 'date_interval') {
if ($temp eq 'opendate') {
$date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
}
if ($temp eq 'answerdate') {
$date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
}
}
&Apache::lonxml::debug("found :$date: for :$temp:");
if ($date eq '') {
$date = &mt("an unknown date"); $passed = 0;
} elsif ($date eq 'con_lost') {
$date = &mt("an indeterminate date"); $passed = 0;
} else {
if (time < $date) { $passed = 0; } else { $passed = 1; }
$date = &Apache::lonlocal::locallocaltime($date);
}
if (!$passed) { $type=$temp; last; }
}
&Apache::lonxml::debug("have :$type:$passed:");
if ($passed) {
$status='SHOW_ANSWER';
$datemsg=$date;
} elsif ($type eq 'opendate') {
$status='CLOSED';
$datemsg = &mt("will open on")." $date";
} elsif ($type eq 'duedate') {
$status='CAN_ANSWER';
$datemsg = &mt("is due at")." $date";
} elsif ($type eq 'answerdate') {
$status='CLOSED';
$datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
}
}
if ($status eq 'CAN_ANSWER' ||
(($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
#check #tries, and if correct.
my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
if ( $tries eq '' ) { $tries = '0'; }
if ( $maxtries eq '' &&
$env{'request.state'} ne 'construct') { $maxtries = '2'; }
if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
# if (correct and show prob status) or excused then CANNOT_ANSWER
if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
&&
&show_problem_status())
||
$Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
$status = 'CANNOT_ANSWER';
}
if ($status eq 'CANNOT_ANSWER'
&& &show_answer_problem_status()) {
$status = 'SHOW_ANSWER';
}
}
if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
my @interval=&Apache::lonnet::EXT("resource.$id.interval");
&Apache::lonxml::debug("looking for interval @interval");
if ($interval[0]) {
my $first_access=&Apache::lonnet::get_first_access($interval[1]);
&Apache::lonxml::debug("looking for accesstime $first_access");
if (!$first_access) {
$status='NOT_YET_VIEWED';
my $due_date = &due_date($id);
my $seconds_left = $due_date - time;
if ($seconds_left > $interval[0] || $due_date eq '') {
$seconds_left = $interval[0];
}
$datemsg=&seconds_to_human_length($seconds_left);
}
}
}
#if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
# (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
# return ('UNCHECKEDOUT','needs to be checked out');
#}
&Apache::lonxml::debug("sending back :$status:$datemsg:");
if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
&Apache::lonxml::debug("should be allowed to browse a resource when closed");
$status='CAN_ANSWER';
$datemsg=&mt('is closed but you are allowed to view it');
}
return ($status,$datemsg);
}
# this should work exactly like the copy in lonnavmaps.pm
sub due_date {
my ($part_id,$symb,$udom,$uname)=@_;
my $date;
my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
$udom,$uname);
&Apache::lonxml::debug("looking for interval $part_id $symb @interval");
my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
$udom,$uname);
&Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
if ($interval[0] =~ /\d+/) {
my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
&Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
if (defined($first_access)) {
my $interval = $first_access+$interval[0];
$date = (!$due_date || $interval < $due_date) ? $interval
: $due_date;
} else {
$date = $due_date;
}
} else {
$date = $due_date;
}
return $date
}
sub seconds_to_human_length {
my ($length)=@_;
my $seconds=$length%60; $length=int($length/60);
my $minutes=$length%60; $length=int($length/60);
my $hours=$length%24; $length=int($length/24);
my $days=$length;
my $timestr;
if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
if ($hours > 0) { $timestr.=($timestr?", ":"").
&mt('[quant,_1,hour]',$hours); }
if ($minutes > 0) { $timestr.=($timestr?", ":"").
&mt('[quant,_1,minute]',$minutes); }
if ($seconds > 0) { $timestr.=($timestr?", ":"").
&mt('[quant,_1,second]',$seconds); }
return $timestr;
}
sub showhash {
my (%hash) = @_;
&showhashsubset(\%hash,'.');
return '';
}
sub showarray {
my ($array)=@_;
my $string="(";
foreach my $elm (@{ $array }) {
if (ref($elm) eq 'ARRAY') {
$string.=&showarray($elm);
} elsif (ref($elm) eq 'HASH') {
$string.= "HASH --- \n<br />";
$string.= &showhashsubset($elm,'.');
} else {
$string.="$elm,"
}
}
chop($string);
$string.=")";
return $string;
}
sub showhashsubset {
my ($hash,$keyre) = @_;
my $resultkey;
foreach $resultkey (sort keys %$hash) {
if ($resultkey !~ /$keyre/) { next; }
if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
&Apache::lonxml::debug("$resultkey ---- ".
&showarray($$hash{$resultkey}));
} elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
&showhashsubset($$hash{$resultkey},'.');
} else {
&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
}
}
&Apache::lonxml::debug("\n<br />restored values^</br>\n");
return '';
}
sub setuppermissions {
$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
if (! $viewgrades &&
exists($env{'request.course.sec'}) &&
$env{'request.course.sec'} !~ /^\s*$/) {
$viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
'/'.$env{'request.course.sec'});
}
$Apache::lonhomework::viewgrades = $viewgrades;
if ($Apache::lonhomework::browse eq 'F' &&
$env{'form.devalidatecourseresdata'} eq 'on') {
my (undef,$courseid) = &Apache::lonnet::whichuser();
&Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
$env{"course.$courseid.domain"});
}
my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
if (! $modifygrades &&
exists($env{'request.course.sec'}) &&
$env{'request.course.sec'} !~ /^\s*$/) {
$modifygrades =
&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
'/'.$env{'request.course.sec'});
}
$Apache::lonhomework::modifygrades = $modifygrades;
my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
if (! $queuegrade &&
exists($env{'request.course.sec'}) &&
$env{'request.course.sec'} !~ /^\s*$/) {
$queuegrade =
&Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
'/'.$env{'request.course.sec'});
}
$Apache::lonhomework::queuegrade = $queuegrade;
return '';
}
sub unset_permissions {
undef($Apache::lonhomework::queuegrade);
undef($Apache::lonhomework::modifygrades);
undef($Apache::lonhomework::viewgrades);
undef($Apache::lonhomework::browse);
}
sub setupheader {
my $request=$_[0];
&Apache::loncommon::content_type($request,'text/html');
if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
&Apache::loncommon::no_cache($request);
}
# $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
# 'lastrevisiondate'));
$request->send_http_header;
return OK if $request->header_only;
return ''
}
sub handle_save_or_undo {
my ($request,$problem,$result) = @_;
my $file = &Apache::lonnet::filelocation("",$request->uri);
my $filebak =$file.".bak";
my $filetmp =$file.".tmp";
my $error=0;
if ($env{'form.Undo'} eq &mt('undo')) {
my $error=0;
if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
if (!$error) {
&Apache::lonxml::info("<p><b>".
&mt("Undid changes, Switched [_1] and [_2]",
'<span class="LC_filename">'.$filebak.
'</span>',
'<span class="LC_filename">'.$file.
'</span>')."</b></p>");
} else {
&Apache::lonxml::info("<p><span class=\"LC_error\">".
&mt("Unable to undo, unable to switch [_1] and [_2]",
'<span class="LC_filename">'.
$filebak.'</span>',
'<span class="LC_filename">'.
$file.'</span>')."</span></p>");
$error=1;
}
} else {
&Apache::lonnet::correct_line_ends($result);
my $fs=Apache::File->new(">$filebak");
if (defined($fs)) {
print $fs $$problem;
} else {
&Apache::lonxml::info("<span class=\"LC_error\">".
&mt("Unable to make backup [_1]",
'<span class="LC_filename">'.
$filebak.'</span>')."</span>");
$error=2;
}
my $fh=Apache::File->new(">$file");
if (defined($fh)) {
print $fh $$result;
} else {
&Apache::lonxml::info('<span class="LC_error">'.
&mt("Unable to write to [_1]",
'<span class="LC_filename">'.
$file.'</span>').
'</span>');
$error|=4;
}
}
return $error;
}
sub analyze_header {
my ($request) = @_;
my $js = &Apache::structuretags::setmode_javascript();
# Breadcrumbs
my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
'text' => 'Construction Space'},
{'href' => '',
'text' => 'Problem Testing'},
{'href' => '',
'text' => 'Analyzing a problem'}];
my $result =
&Apache::loncommon::start_page('Analyzing a problem',
$js,
{'bread_crumbs' => $brcrum,})
.&Apache::loncommon::head_subbox(
&Apache::loncommon::CSTR_pageheader());
$result .=
&Apache::lonxml::message_location().'
<form name="lonhomework" method="post" action="'.
&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
'<input type="hidden" name="problemmode" value="'.
$env{'form.problemmode'}.'" />'.
&Apache::structuretags::remember_problem_state().'
<div class="LC_edit_problem_analyze_header">
<input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
'onclick="javascript:setmode(this.form,'."'editxml'".')" />
<input type="button" name="submitmode" value="'.&mt('Edit').'" '.
'onclick="javascript:setmode(this.form,'."'edit'".')" />
<hr />
<input type="button" name="submitmode" value="'.&mt("View").'" '.
'onclick="javascript:setmode(this.form,'."'view'".')" />
<hr />
</div>
</form>';
&Apache::lonxml::add_messages(\$result);
$request->print($result);
$request->rflush();
}
sub analyze_footer {
my ($request) = @_;
$request->print(&Apache::loncommon::end_page());
$request->rflush();
}
sub analyze {
my ($request,$file) = @_;
&Apache::lonxml::debug("Analyze");
my $result;
my %overall;
my %seedexample;
my %allparts;
my $rndseed=$env{'form.rndseed'};
&analyze_header($request);
my %prog_state=
&Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
&mt('Getting Problem Variants'),
$env{'form.numtoanalyze'},
'inline',undef);
for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
&Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
&mt('last problem'));
if (&Apache::loncommon::connection_aborted($request)) { return; }
my $thisseed=$i+$rndseed;
my $subresult=&Apache::lonnet::ssi($request->uri,
('grade_target' => 'analyze'),
('rndseed' => $thisseed));
(my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
my %analyze=&Apache::lonnet::str2hash($subresult);
my @parts;
if (defined(@{ $analyze{'parts'} })) {
@parts=@{ $analyze{'parts'} };
}
foreach my $part (@parts) {
if (!exists($allparts{$part})) {$allparts{$part}=1;};
if ($analyze{$part.'.type'} eq 'numericalresponse' ||
$analyze{$part.'.type'} eq 'stringresponse' ||
$analyze{$part.'.type'} eq 'formularesponse' ) {
foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
my $i=0;
foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
push( @{ $overall{$part.'.answer'}[$i] },
$answer_part);
my $concatanswer= join("\0",@{ $answer_part });
if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
$answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
}
$seedexample{join("\0",$part,$i,@{$answer_part})}=
$thisseed;
$i++;
}
}
if (!keys(%{ $analyze{$part.'.answer'} })) {
my $answer_part =
['<span class="LC_error">'.&mt('Error').'</span>'];
$seedexample{join("\0",$part,0,@{$answer_part})}=
$thisseed;
push( @{ $overall{$part.'.answer'}[0] },
$answer_part);
}
}
}
}
&Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
&mt('Analyzing Results'));
$request->print('<hr />'
.'<h3>'
.&mt('List of possible answers')
.'</h3>'
);
foreach my $part (sort(keys(%allparts))) {
if (defined(@{ $overall{$part.'.answer'} })) {
for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
$request->print(&Apache::loncommon::start_data_table()
.&Apache::loncommon::start_data_table_header_row()
.'<th colspan="'.($num_cols+1).'">'
.&mt('Part').' '.$part
);
if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
$request->print(' '.&mt('Answer [_1]',$i+1));
}
$request->print('</th>'
.&Apache::loncommon::end_data_table_header_row()
);
my %frequency;
foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
$frequency{join("\0",@{ $answer })}++;
}
$request->print(&Apache::loncommon::start_data_table_header_row()
.'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
.'<th>'.&mt('Frequency').'<br />'
.'('.&mt('click for example').')</th>'
.&Apache::loncommon::end_data_table_header_row()
);
foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
$request->print(&Apache::loncommon::start_data_table_row()
.'<td>'
.join('</td><td>',split("\0",$answer))
.'</td>'
.'<td>'
.'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
.'</td>'
.&Apache::loncommon::end_data_table_row()
);
}
$request->print(&Apache::loncommon::end_data_table());
}
} else {
$request->print('<p class="LC_warning">'
.&mt('Response [_1] is not analyzable at this time.',$part)
.'</p>'
);
}
}
if (scalar(keys(%allparts)) == 0 ) {
$request->print('<p class="LC_warning">'
.&mt('Found no analyzable responses in this problem.'
.' Currently only Numerical, Formula and String response styles are supported.')
.'</p>'
);
}
&Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
&analyze_footer($request);
&Apache::lonhomework::showhash(%overall);
return $result;
}
{
my $show_problem_status;
sub reset_show_problem_status {
undef($show_problem_status);
}
sub set_show_problem_status {
my ($new_status) = @_;
$show_problem_status = lc($new_status);
}
sub hide_problem_status {
return ($show_problem_status eq 'no'
|| $show_problem_status eq 'no_feedback_ever');
}
sub show_problem_status {
return ($show_problem_status eq 'yes'
|| $show_problem_status eq 'answer'
|| $show_problem_status eq '');
}
sub show_some_problem_status {
return ($show_problem_status eq 'no');
}
sub show_no_problem_status {
return ($show_problem_status eq 'no_feedback_ever');
}
sub show_answer_problem_status {
return ($show_problem_status eq 'answer');
}
}
sub editxmlmode {
my ($request,$file) = @_;
my $result;
my $problem=&Apache::lonnet::getfile($file);
if ($problem eq -1) {
&Apache::lonxml::error(
'<b> '
.&mt('Unable to find [_1]',
'<span class="LC_filename">'.$file.'</span>')
.'</b>');
$problem='';
}
if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
my $error=&handle_save_or_undo($request,\$problem,
\$env{'form.editxmltext'});
if (!$error) { $problem=&Apache::lonnet::getfile($file); }
}
&Apache::lonhomework::showhashsubset(\%env,'^form');
if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
&Apache::lonhomework::showhashsubset(\%env,'^form');
$env{'form.problemmode'}='view';
&renderpage($request,$file);
} else {
my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
if ($cols > 80) { $cols = 80; }
if ($cols < 70) { $cols = 70; }
if ($rows < 20) { $rows = 20; }
my $js =
&Apache::edit::js_change_detection().
&Apache::loncommon::resize_textarea_js().
&Apache::structuretags::setmode_javascript().
&Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
my $dragmath_button =
&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
# Breadcrumbs
my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
'text' => 'Construction Space'},
{'href' => '',
'text' => 'Problem Editing'}];
my $start_page =
&Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
{'no_auto_mt_title' => 1,
'only_body' => $only_body,
'add_entries' => {
'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
},
'bread_crumbs' => $brcrum,
});
$result=$start_page
.&Apache::loncommon::head_subbox(
&Apache::loncommon::CSTR_pageheader());
$result.=&renderpage($request,$file,['no_output_web'],1).
'<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
&Apache::structuretags::remember_problem_state().'
<div class="LC_edit_problem_editxml_header">
<table class="LC_edit_problem_header_title"><tr><td>
'.&mt('Problem Editing').&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'
</td><td align="right">
'.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
</td></tr>
</table>
<div class="LC_edit_problem_discards">
<input type="hidden" name="problemmode" value="editxml" />
<input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
'onclick="javascript:setmode(this.form,'."'discard'".')" />
<input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
'.$dragmath_button.'
</div>
<div class="LC_edit_problem_saves">
<input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
<input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
</div>
<hr />
'.&Apache::lonxml::message_location().'
</div>
' . '
<textarea '.&Apache::edit::element_change_detection().
' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
' name="editxmltext" id="LC_editxmltext">'.
&HTML::Entities::encode($problem,'<>&"').'</textarea>
<div id="LC_aftertextarea">
</div>
</form>'.&Apache::loncommon::end_page();
&Apache::lonxml::add_messages(\$result);
$request->print($result);
}
return '';
}
#
# Render the page in whatever target desired.
#
sub renderpage {
my ($request,$file,$targets,$return_string) = @_;
my @targets = @{$targets || [&get_target()]};
&Apache::lonhomework::showhashsubset(\%env,'form.');
&Apache::lonxml::debug("Running targets ".join(':',@targets));
my $overall_result;
foreach my $target (@targets) {
# FIXME need to do something intelligent when a problem goes
# from viewable to not viewable due to map conditions
#&setuppermissions();
#if ( $Apache::lonhomework::browse ne '2'
# && $Apache::lonhomework::browse ne 'F' ) {
# $request->print(" You most likely shouldn't see me.");
#}
#my $t0 = [&gettimeofday()];
my $output=1;
if ($target eq 'no_output_web') {
$target = 'web'; $output=0;
}
my $problem=&Apache::lonnet::getfile($file);
my $result;
if ($problem eq -1) {
$problem='';
my $filename=(split('/',$file))[-1];
my $error =
"<b> ".&mt('Unable to find [_1]',
'<span class="LC_filename">'.$filename.'</span>')
."</b>";
$result.=
&Apache::loncommon::simple_error_page($request,'Not available',
$error);
return;
}
my %mystyle;
if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
&Apache::lonxml::debug("Should be parsing now");
$result .= &Apache::lonxml::xmlparse($request, $target, $problem,
&setup_vars($target),%mystyle);
&finished_parsing();
if (!$output) { $result = ''; }
#$request->print("Result follows:");
if ($target eq 'modified') {
&handle_save_or_undo($request,\$problem,\$result);
} else {
if ($target eq 'analyze') {
$result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
undef(%Apache::lonhomework::analyze);
}
#my $td=&tv_interval($t0);
#if ( $Apache::lonxml::debug) {
#$result =~ s:</body>::;
#$result.="<br />Spent $td seconds processing target $target\n</body>";
#}
# $request->print($result);
$overall_result.=$result;
# $request->rflush();
}
#$request->print(":Result ends");
#my $td=&tv_interval($t0);
}
if (!$return_string) {
&Apache::lonxml::add_messages(\$overall_result);
$request->print($overall_result);
$request->rflush();
} else {
return $overall_result;
}
}
sub finished_parsing {
undef($Apache::lonhomework::parsing_a_problem);
undef($Apache::lonhomework::parsing_a_task);
}
sub get_template_list {
my ($extension) = @_;
my $result;
my @allnames;
&Apache::lonxml::debug("Looking for :$extension:");
my $glob_extension = $extension;
if ($extension eq 'survey' || $extension eq 'exam') {
$glob_extension = 'problem';
}
my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
'/templates/*.'.$glob_extension);
@files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
(&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
&mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
@files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
my ($midpoint,$seconddiv,$numfiles);
$numfiles = 0;
foreach my $file (@files) {
next if ($file->[1] !~ /\S/);
$numfiles ++;
}
if ($numfiles > 0) {
$result = '<div class="LC_left_float">';
$midpoint = int($numfiles/2);
if ($numfiles%2) {
$midpoint ++;
}
}
my $count = 0;
my $currentcategory='';
my $first = 1;
foreach my $file (@files) {
next if ($file->[1] !~ /\S/);
if ($file->[2] ne $currentcategory) {
$currentcategory=$file->[2];
if ((!$seconddiv) && ($count >= $midpoint)) {
$result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
$seconddiv = 1;
} elsif (!$first) {
$result.='</div>'."\n";
} else {
$first = 0;
}
$result.= '<div class="LC_Box">'."\n"
.'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
$count++;
}
$result .=
'<label><input type="radio" name="template" value="'.$file->[0].'" />'.
$file->[1].'</label>';
if ($file->[3]) {
$result.=&Apache::loncommon::help_open_topic($file->[3]);
}
my $filename=$file->[0];
$filename=~s/^\/home\/httpd\/html//;
$result.=' <span class="LC_fontsize_small">'
.'<a href="'.$filename.'" target="sample">'.&mt('Example').'</a>'
.'</span><br />'."\n";
$count ++;
}
if ($numfiles > 0) {
$result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
}
return $result;
}
sub newproblem {
my ($request) = @_;
if ($env{'form.template'}) {
my $file = $env{'form.template'};
my $dest = &Apache::lonnet::filelocation("",$request->uri);
&File::Copy::copy($file,$dest);
&renderpage($request,$dest);
return;
}
my ($extension) = ($request->uri =~ m/\.(\w+)$/);
&Apache::lonxml::debug("Looking for :$extension:");
my $templatelist=&get_template_list($extension);
if ($env{'form.newfile'} && !$templatelist) {
# no templates found
my $templatefilename =
$request->dir_config('lonIncludes').'/templates/blank.'.$extension;
&Apache::lonxml::debug("$templatefilename");
my $dest = &Apache::lonnet::filelocation("",$request->uri);
&File::Copy::copy($templatefilename,$dest);
&renderpage($request,$dest);
} else {
my $url=&HTML::Entities::encode($request->uri,'<>&"');
my $shownurl=$url;
$shownurl=~s-^/~-/priv/-;
my $dest = &Apache::lonnet::filelocation("",$request->uri);
my $errormsg;
my $instructions;
my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
'text' => 'Construction Space'},
{'href' => '',
'text' => "Create New $extension"}];
my $start_page =
&Apache::loncommon::start_page("Create New $extension",
undef,
{'bread_crumbs' => $brcrum,});
$request->print(
$start_page
.&Apache::loncommon::head_subbox(
&Apache::loncommon::CSTR_pageheader())
.'<h1>'.&mt("Creating a new $extension resource.")."</h1>
$errormsg
".&mt("The requested file [_1] currently does not exist.",
'<span class="LC_filename">'.$shownurl.'</span>').'
<p class="LC_info">
'.&mt("To create a new $extension, select a template from the".
" list below. Then click on the \"Create $extension\" button.").'
</p><div><form action="'.$url.'" method="post">');
if (defined($templatelist)) {
$request->print($templatelist);
}
$request->print('<br /><input type="submit" name="newfile" value="'.
&mt("Create $extension").'" />');
$request->print('</form></div>'.&Apache::loncommon::end_page());
}
return;
}
sub update_construct_style {
if ($env{'request.state'} eq "construct"
&& $env{'form.problemmode'} eq 'view'
&& defined($env{'form.submitted'})
&& !defined($env{'form.resetdata'})
&& !defined($env{'form.newrandomization'})) {
if ((!$env{'form.style_file'} && $env{'construct.style'})
||$env{'form.clear_style_file'}) {
&Apache::lonnet::delenv('construct.style');
} elsif ($env{'form.style_file'}
&& $env{'construct.style'} ne $env{'form.style_file'}) {
&Apache::lonnet::appenv({'construct.style' =>
$env{'form.style_file'}});
}
}
}
sub handler {
#my $t0 = [&gettimeofday()];
my $request=$_[0];
$Apache::lonxml::request=$request;
$Apache::lonxml::debug=$env{'user.debug'};
$env{'request.uri'}=$request->uri;
&setuppermissions();
my $file=&Apache::lonnet::filelocation("",$request->uri);
#check if we know where we are
if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
# if we are browsing we might not be able to know where we are
if ($Apache::lonhomework::browse ne 'F' &&
$env{'request.state'} ne "construct") {
#should know where we are, so ask
&unset_permissions();
$request->internal_redirect('/adm/ambiguous');
return OK;
}
}
if (&setupheader($request)) {
&unset_permissions();
return OK;
}
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
&Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
my ($symb) = &Apache::lonnet::whichuser();
&Apache::lonxml::debug('symb is '.$symb);
if ($env{'request.state'} eq "construct") {
if ( -e $file ) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['problemmode']);
if (!(defined $env{'form.problemmode'})) {
#first visit to problem in construction space
$env{'form.problemmode'}= 'view';
&renderpage($request,$file);
} elsif ($env{'form.problemmode'} eq 'editxml') {
&editxmlmode($request,$file);
} elsif ($env{'form.problemmode'} eq 'calcanswers') {
&analyze($request,$file);
} else {
&update_construct_style();
&renderpage($request,$file);
}
} else {
# requested file doesn't exist in contruction space
&newproblem($request);
}
} else {
# just render the page normally outside of construction space
&Apache::lonxml::debug("not construct");
&renderpage($request,$file);
}
#my $td=&tv_interval($t0);
#&Apache::lonxml::debug("Spent $td seconds processing");
# always turn off debug messages
$Apache::lonxml::debug=0;
&unset_permissions();
return OK;
}
1;
__END__
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