--- loncom/homework/structuretags.pm 2002/10/14 15:43:06 1.125
+++ loncom/homework/structuretags.pm 2007/05/23 22:36:21 1.377
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# definition of tags that give a structure to a document
#
-# $Id: structuretags.pm,v 1.125 2002/10/14 15:43:06 sakharuk Exp $
+# $Id: structuretags.pm,v 1.377 2007/05/23 22:36:21 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,28 +25,33 @@
#
# http://www.lon-capa.org/
#
-# 2/19 Guy
-# 6/26/2001 fixed extra web display at end of tags
-# 8/17,8/18,8/20 Gerd Kortemeyer
+###
+
package Apache::structuretags;
use strict;
use Apache::lonnet;
use Apache::File();
-
+use Apache::lonmenu;
+use Apache::lonlocal;
+use Apache::lonxml;
+use Apache::lonenc();
+use Time::HiRes qw( gettimeofday tv_interval );
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+
BEGIN {
- &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext'));
-# &Apache::lonxml::register_insert('problem','',('part','postanswerdate','preduedate'))
+ &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
}
sub start_web {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]);
- if ($target eq 'web') {
- return $bodytext;
- }
- return '';
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
+ if ($target eq 'web' || $target eq 'webgrade') {
+ return $bodytext;
+ }
+ return '';
}
sub end_web {
@@ -54,12 +59,13 @@ sub end_web {
}
sub start_tex {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]);
- if ($target eq 'tex') {
- return $bodytext.' ';
- }
- return '';
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result='';
+ my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
+ if ($target eq 'tex') {
+ return $bodytext.' ';
+ }
+ return $result;;
}
sub end_tex {
@@ -67,709 +73,1624 @@ sub end_tex {
}
sub page_start {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my %found;
- foreach my $taginside ($tagstack) {
- foreach my $taglookedfor ('html','body','form') {
- if ($taginside =~ /^$taglookedfor$/i) { $found{$taglookedfor} = 1; }
- }
- }
-
- my $result;
- my $head_tag_start;
- if (!defined($found{'html'})) {
- $result=&Apache::londefdef::start_html($target,$token,$tagstack,$parstack,
- $parser,$safeeval);
- $head_tag_start='
'.&Apache::lonxml::registerurl(undef,$target);
- }
- my $body_tag_start;
- if (!defined($found{'body'})) {
- $body_tag_start='
+function setSubmittedPart (part) {
+ this.document.lonhomework.submitted.value="part_"+part;
+}
+
+';
+
+ my %body_args;
+ if (defined($found{'html'})) {
+ $body_args{'skip_phases'}{'head'}=1;
} else {
- my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,$safeeval);
- if ($bgcolor) {
- $body_tag_start.='bgcolor="'.$bgcolor.'" ';
- } else {
- $body_tag_start.='bgcolor="#ffffff"';
- }
- }
- $body_tag_start.='>';
- }
- my $form_tag_start;
- if (!defined($found{'form'})) {
- $form_tag_start='\n".&Apache::loncommon::end_page();
+}
+
+sub option {
+ my ($value,$name) = @_;
+ my $result ="
+ ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."
+ ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."
+ ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."
+ ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."
+
+
+
+Problem Type:
+
+
+
+Feedback Mode:
+
+
+
+";
+ my $numtoanalyze=$env{'form.numtoanalyze'};
+ if (!$numtoanalyze) { $numtoanalyze=20; }
+ $result.= ' for
+ '.&mt('versions of this problem').
+ '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
+ '',undef,undef,300).
+ '';
+ } elsif ($Apache::lonhomework::parsing_a_task) {
+ $result.="
+
+Problem Status:
+
+
+
+";
+ }
+ return $result;
}
sub initialize_storage {
- %Apache::lonhomework::results=();
- my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
- if ($ENV{'request.state'} eq 'construct') {
- %Apache::lonhomework::history=
- &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
+ my ($given_symb) = @_;
+ undef(%Apache::lonhomework::results);
+ undef(%Apache::lonhomework::history);
+ my ($symb,$courseid,$domain,$name) =
+ &Apache::lonnet::whichuser($given_symb);
+
+ # anonymous users (CODEd exams) have no data
+ if ($name eq 'anonymous'
+ && !defined($domain)) {
+ return;
+ }
+
+ if ($env{'request.state'} eq 'construct'
+ || $symb eq ''
+ || $Apache::lonhomework::type eq 'practice') {
+
+ my $namespace = $symb || $env{'request.uri'};
+ if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
+ ($env{'form.resetdata'} eq &mt('New Problem Variation')
+ && $env{'form.submitted'} eq 'yes') ||
+ $env{'form.newrandomization'} eq &mt('New Randomization')) {
+ &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
+ &Apache::lonxml::debug("Attempt reset");
+ }
+ %Apache::lonhomework::history=
+ &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
+ my ($temp)=keys %Apache::lonhomework::history ;
+ &Apache::lonxml::debug("Return message of $temp");
+ } else {
+ %Apache::lonhomework::history=
+ &Apache::lonnet::restore($symb,$courseid,$domain,$name);
+ }
+
+ #ignore error conditions
my ($temp)=keys %Apache::lonhomework::history ;
- &Apache::lonxml::debug("Return message of $temp");
- } else {
- %Apache::lonhomework::history=
- &Apache::lonnet::restore($symb,$courseid,$domain,$name);
- }
- #ignore error conditions
- my ($temp)=keys %Apache::lonhomework::history ;
- if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
+ if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
}
# -------------------------------------------------------------finalize_storage
# Stores away the result has to a student's environment
# checks form.grade_ for specific values, other wises stores
# to the running users environment
+# Will increment totals for attempts, students, and corrects
+# if running user has student role.
sub finalize_storage {
- my $result;
- my ($temp) = keys %Apache::lonhomework::results;
- if ( $temp ne '' ) {
- my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
- if ($ENV{'request.state'} eq 'construct') {
- $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
- $ENV{'request.uri'},'',$domain,$name);
- &Apache::lonxml::debug('Construct Store return message:'.$result);
+ my ($given_symb) = @_;
+ my $result;
+ if (%Apache::lonhomework::results) {
+ my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
+ delete(@Apache::lonhomework::results{@remove});
+ my ($symb,$courseid,$domain,$name) =
+ &Apache::lonnet::whichuser($given_symb);
+ if ($env{'request.state'} eq 'construct'
+ || $symb eq ''
+ || $Apache::lonhomework::type eq 'practice') {
+ my $namespace = $symb || $env{'request.uri'};
+ $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
+ $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
+ $namespace,'',$domain,$name);
+ &Apache::lonxml::debug('Construct Store return message:'.$result);
+ } else {
+ $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
+ $symb,$courseid,$domain,$name);
+ &Apache::lonxml::debug('Store return message:'.$result);
+ if ($env{'request.role'} =~/^st/) {
+ &store_aggregates($symb,$courseid);
+ }
+ }
} else {
- $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
- $symb,$courseid,$domain,$name);
- &Apache::lonxml::debug('Store return message:'.$result);
+ &Apache::lonxml::debug('Nothing to store');
+ }
+ return $result;
+}
+use Data::Dumper;
+
+# -------------------------------------------------------------store_aggregates
+# Sends hash of values to be incremented in nohist_resourcetracker.db
+# for the course. Increments total number of attempts, unique students
+# and corrects for each part for an instance of a problem, as appropriate.
+sub store_aggregates {
+ my ($symb,$courseid) = @_;
+ my %aggregate;
+ my @parts;
+ my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
+ foreach my $key (keys(%Apache::lonhomework::results)) {
+ if ($key =~ /resource\.([^\.]+)\.tries/) {
+ push(@parts, $1);
+ }
+ }
+ foreach my $part (@parts) {
+ if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
+ eq 'APPROX_ANS' ||
+ $Apache::lonhomework::results{'resource.'.$part.'.award'}
+ eq 'EXACT_ANS') {
+ $aggregate{$symb."\0".$part."\0correct"} = 1;
+ }
+ if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
+ $aggregate{$symb."\0".$part."\0users"} = 1;
+ } else {
+ my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
+ if ($last_reset) {
+ if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
+ $aggregate{$symb."\0".$part."\0users"} = 1;
+ }
+ }
+ }
+ $aggregate{$symb."\0".$part."\0attempts"} = 1;
+ }
+ if (keys (%aggregate) > 0) {
+ &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
+ $cdomain,$cname);
}
- }
- return $result;
}
sub checkout_msg {
-return (<The resource needs to be checked out
-As a resource gets checked out, a unique timestamped ID is given to it, and a
-permanent record is left in the system.
-
-Checking out resources is subject to course policies, and may exclude future
-credit even if done erroneously.
+ my %lt=&Apache::lonlocal::texthash(
+ 'resource'=>'The resource needs to be checked out',
+ 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
+ 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
+ 'checkout'=>'Check out Exam for Viewing',
+ 'checkout?'=>'Check out Exam?');
+ my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
+ return (<$lt{'resource'}
+
$lt{'id_expln'}
+
+
$lt{'warning'}
-
+ENDCHECKOUT
+}
+
+sub firstaccess_msg {
+ my ($time,$symb)=@_;
+ my ($map)=&Apache::lonnet::decode_symb($symb);
+ my $foldertitle=&Apache::lonnet::gettitle($map);
+ &Apache::lonxml::debug("map is $map title is $foldertitle");
+ my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
+ return (<The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".
+
ENDCHECKOUT
}
+sub init_problem_globals {
+ my ($type)=@_;
+ #initialize globals
+ # For problems, we start out in part 0 (outside a tag).
+ # and part 0 is used to describe the main body of the
+ #
+ if ($type eq 'problem') {
+ $Apache::inputtags::part='0';
+ @Apache::inputtags::partlist=('0');
+ $Apache::lonhomework::problemstatus=&get_problem_status('0');
+ $Apache::lonhomework::ignore_response_errors=0;
+
+ } elsif ($type eq 'library') {
+ $Apache::inputtags::part='';
+ @Apache::inputtags::partlist=();
+ $Apache::lonhomework::problemstatus='';
+ $Apache::lonhomework::ignore_response_errors=1;
+
+ } elsif ($type eq 'Task') {
+ $Apache::inputtags::part='0';
+ @Apache::inputtags::partlist=('0');
+ $Apache::lonhomework::problemstatus='';
+ $Apache::lonhomework::ignore_response_errors=1;
+ }
+ @Apache::inputtags::responselist = ();
+ @Apache::inputtags::importlist = ();
+ @Apache::inputtags::previous=();
+ @Apache::inputtags::previous_version=();
+ $Apache::structuretags::printanswer='No';
+ @Apache::structuretags::whileconds=();
+ @Apache::structuretags::whilebody=();
+ @Apache::structuretags::whileline=();
+ $Apache::lonhomework::scantronmode=0;
+ undef($Apache::lonhomework::name);
+ undef($Apache::lonhomework::default_type);
+ undef($Apache::lonhomework::type);
+}
+
+sub reset_problem_globals {
+ my ($type)=@_;
+ undef(%Apache::lonhomework::history);
+ undef(%Apache::lonhomework::results);
+ undef($Apache::inputtags::part);
+#don't undef this, lonhomework.pm takes care of this, we use this to
+#detect if we try to do 2 problems in one file
+# undef($Apache::lonhomework::parsing_a_problem);
+ undef($Apache::lonhomework::name);
+ undef($Apache::lonhomework::default_type);
+ undef($Apache::lonhomework::type);
+ undef($Apache::lonhomework::scantronmode);
+ undef($Apache::lonhomework::problemstatus);
+ undef($Apache::lonhomework::ignore_response_errors);
+}
+
+sub set_problem_state {
+ my ($part)=@_;
+ if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
+ $Apache::lonhomework::history{"resource.$part.solved"}=
+ 'correct_by_student';
+ }
+}
+
+sub get_problem_status {
+ my ($part)=@_;
+ my $problem_status;
+ if ($env{'request.state'} eq 'construct' &&
+ defined($env{'form.problemstatus'})) {
+ $problem_status=$env{'form.problemstatus'};
+ } else {
+ $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
+ &Apache::lonxml::debug("problem status for $part is $problem_status");
+ &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
+ }
+ return $problem_status;
+}
+
sub start_problem {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+
+ # We'll use the redirection to fix up printing of duedates.
+ if (!$Apache::lonxml::metamode) {
+ &Apache::lonxml::startredirection();
+ }
+
+ # Problems don't nest and we don't allow more than one in
+ # a .problem file.
+ #
+ if ( $Apache::inputtags::part ne '' ||
+ $Apache::lonhomework::parsing_a_problem) {
+ &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
+ #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
+ return '';
+ }
+
+ $Apache::lonhomework::parsing_a_problem=1;
+ &init_problem_globals('problem');
+
+ if (defined($env{'scantron.maxquest'})) {
+ $Apache::lonhomework::scantronmode=1;
+ }
+
+ if ($target ne 'analyze') {
+ if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
+ $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
+ if (($env{'request.state'} eq 'construct') &&
+ defined($env{'form.problemtype'})) {
+ $Apache::lonhomework::type=$env{'form.problemtype'};
+ }
+ &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
+ }
+ if ($Apache::lonhomework::type eq '' ) {
+ my $uri=$env{'request.uri'};
+ if ($uri=~/\.(\w+)$/) {
+ $Apache::lonhomework::type=$1;
+ &Apache::lonxml::debug("Using type of $1");
+ } else {
+ $Apache::lonhomework::type='problem';
+ &Apache::lonxml::debug("Using default type, problem, :$uri:");
+ }
+ }
+ $Apache::lonhomework::default_type = $Apache::lonhomework::type;
- # meta is called from lonpublisher, which doesn't uses the normal
- # lonhomework method of parsing the file which means that inputtags
- # won't get reset
- if ( $Apache::inputtags::part ne '' && $target != 'meta' ) {
- &Apache::lonxml::error('Only one problem allowed in a .problem file');
- my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[-1]);
- return '';
- }
-#intialize globals
- $Apache::inputtags::part='0';
- @Apache::inputtags::responselist = ();
- @Apache::inputtags::previous=();
- if ($target ne 'analyze') {
&initialize_storage();
if ($target eq 'web') {
- &Apache::lonhomework::showhash(%Apache::lonhomework::history);
+ &Apache::lonxml::debug(" grading history ");
+ &Apache::lonhomework::showhash(%Apache::lonhomework::history);
}
- $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
- &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
- }
- if ($Apache::lonhomework::type eq '') {
- my $uri=$ENV{'request.uri'};
- if ($uri=~/\.(\w+)$/) {
- $Apache::lonhomework::type=$1;
- &Apache::lonxml::debug("Using type of $1");
+
+ #added vars to the scripting enviroment
+ my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
+ $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
+ &Apache::run::run($expression,$safeeval);
+ my $status;
+ my $accessmsg;
+
+ my $name= &get_resource_name($parstack,$safeeval);
+ my ($result,$form_tag_start);
+ if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
+ || $target eq 'edit') {
+ ($result,$form_tag_start) =
+ &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
+ $name);
+ }
+
+ if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
+
+ if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
+ if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+ $target eq 'tex') {
+ #handle exam checkout
+ if ($Apache::lonhomework::type eq 'exam') {
+ my $token=
+ $Apache::lonhomework::history{"resource.0.outtoken"};
+ if (($env{'form.doescheckout'}) && (!$token)) {
+ $token=&Apache::lonxml::maketoken();
+ $Apache::lonhomework::history{"resource.0.outtoken"}=
+ $token;
+ }
+ $result.=&Apache::lonxml::printtokenheader($target,$token);
+ }
+ if ($env{'form.markaccess'}) {
+ &Apache::lonnet::set_first_access('map');
+ }
+ #handle rand seed in construction space
+ my $rndseed=&setup_rndseed($safeeval);
+ my ($symb)=&Apache::lonnet::whichuser();
+ if ($env{'request.state'} ne "construct" &&
+ ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
+ $form_tag_start.=''.
+ '';
+ if (exists($env{'form.username'})) {
+ $form_tag_start.=
+ '';
+ }
+ if ($env{'request.role.adv'}) {
+ $form_tag_start.=
+ ' ';
+ }
+ $form_tag_start.='';
+ }
+
+ ($status,$accessmsg,my $slot_name,my $slot) =
+ &Apache::lonhomework::check_slot_access('0','problem');
+ push (@Apache::inputtags::status,$status);
+
+ my $expression='$external::datestatus="'.$status.'";';
+ $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
+ &Apache::run::run($expression,$safeeval);
+ &Apache::lonxml::debug("Got $status");
+
+ if (( $status eq 'CLOSED' ) ||
+ ( $status eq 'UNCHECKEDOUT') ||
+ ( $status eq 'NOT_YET_VIEWED') ||
+ ( $status eq 'BANNED') ||
+ ( $status eq 'UNAVAILABLE') ||
+ ( $status eq 'NOT_IN_A_SLOT') ||
+ ( $status eq 'INVALID_ACCESS')) {
+ my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
+ $style);
+ if ( $target eq "web" ) {
+ my $msg;
+ if ($status eq 'UNAVAILABLE') {
+ $msg.='
'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'
';
+ } elsif ($status ne 'NOT_YET_VIEWED') {
+ $msg.='
'.&mt('Not open to be viewed').'
';
+ }
+ if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
+ $msg.='The problem '.$accessmsg;
+ } elsif ($status eq 'UNCHECKEDOUT') {
+ $msg.=&checkout_msg();
+ } elsif ($status eq 'NOT_YET_VIEWED') {
+ $msg.=&firstaccess_msg($accessmsg,$symb);
+ } elsif ($status eq 'NOT_IN_A_SLOT') {
+ $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
+ }
+ $result.=$msg.' ';
+ } elsif ($target eq 'tex') {
+ my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
+ : '\begin{minipage}{\textwidth}';
+ $result.='\begin{document}\noindent \vskip 1 mm '.
+ $startminipage.'\vskip 0 mm';
+ if ($status eq 'UNAVAILABLE') {
+ $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
+ } else {
+ $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
+ }
+ }
+ } elsif ($status eq 'NEEDS_CHECKIN') {
+ my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
+ $style);
+ if ($target eq 'web') {
+ $result .=
+ &Apache::bridgetask::proctor_validation_screen($slot);
+ } elsif ($target eq 'grade') {
+ &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
+ 'problem');
+ }
+ } elsif ($target eq 'web') {
+ if ($status eq 'CAN_ANSWER'
+ && $slot_name ne ''
+ && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
+ # unproctored slot access, self checkin
+ &Apache::bridgetask::check_in('problem',undef,undef,
+ $slot_name);
+ }
+ $result.="\n $form_tag_start \t".
+ '';
+ # create a page header and exit
+ if ($env{'request.state'} eq "construct") {
+ $result.= &problem_web_to_edit_header($env{'form.rndseed'});
+ }
+ # if we are viewing someone else preserve that info
+ if (defined $env{'form.grade_symb'}) {
+ foreach my $field ('symb','courseid','domain','username') {
+ $result .= ''."\n";
+ }
+ }
+ } elsif ($target eq 'tex') {
+ $result .= 'INSERTTEXFRONTMATTERHERE';
+
+ }
+ } elsif ($target eq 'edit') {
+ $result .= $form_tag_start.&problem_edit_header();
+ $Apache::lonxml::warnings_error_header=
+ &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")." ";
+ my $temp=&Apache::edit::insertlist($target,$token);
+ $result.=$temp;
+ } elsif ($target eq 'modified') {
+ $result=$token->[4];
} else {
- $Apache::lonhomework::type='problem';
- &Apache::lonxml::debug("Using default type, problem, :$uri:");
+ # page_start returned a starting result, delete it if we don't need it
+ $result = '';
}
- }
+ return $result;
+}
- #added vars to the scripting enviroment
- my $expression='$external::part='.$Apache::inputtags::part.';';
- &Apache::run::run($expression,$safeeval);
- my $status;
- my $accessmsg;
-
- #should get back a or the neccesary stuff to start XML/MathML
- my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
- &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
- if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) { $result = '';}
-
- if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
- #handle exam checkout
- if ($Apache::lonhomework::type eq 'exam') {
- my $token=$Apache::lonhomework::history{"resource.0.outtoken"};
- if (($ENV{'form.doescheckout'}) && (!$token)) {
- $token=&Apache::lonxml::maketoken();
- $Apache::lonhomework::history{"resource.0.outtoken"}=$token;
- }
- $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
- }
-
- #handle rand seed in construction space
- my $rndseed=&setup_rndseed($safeeval);
- ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
- push (@Apache::inputtags::status,$status);
- my $expression='$external::datestatus="'.$status.'";';
- $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
- &Apache::run::run($expression,$safeeval);
- if (( $status eq 'CLOSED' ) ||
- ( $status eq 'UNCHECKEDOUT') ||
- ( $status eq 'BANNED')) {
- my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
- if ( $target eq "web" ) {
- $result.= $head_tag_start.'';
- my $msg=$body_tag_start.
- '
Not open to be viewed
';
- if ($status eq 'CLOSED') {
- $msg.='The problem '.$accessmsg;
- } elsif ($status eq 'UNCHECKEDOUT') {
- $msg.=&checkout_msg;
- }
- $result.=$msg.' ';
- } elsif ($target eq 'tex') {
- $result.="\\begin{document}\\noindent \\vskip 1 mm \\begin{minipage}{\\textwidth}\\vskip 0 mm Problem is not open to be viewed. It $accessmsg \\vskip 0 mm ";
- }
- } elsif ($target eq 'web') {
- my $name= &get_resource_name($parstack,$safeeval);
- if ($status eq 'CAN_ANSWER') {
- # create a page header and exit
- $result.="$head_tag_start$name
- $body_tag_start \n $form_tag_start".
- '';
- if ($ENV{'request.state'} eq "construct") {
- $result.= &problem_web_to_edit_header($rndseed);
- }
- # if we are viewing someone else preserve that info
- if (defined $ENV{'form.grade_symb'}) {
- foreach my $field ('symb','courseid','domain','username') {
- $result .= ''."\n";
- }
- }
- } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
- || $status eq 'CLOSED') {
- $result.=$head_tag_start.
- "$name\n$body_tag_start\n";
- }
- } elsif ($target eq 'tex') {
- my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
- if ($name eq '') {
- $name=&Apache::lonnet::EXT('resource.title');
- if ($name eq 'con_lost') { $name = ''; }
+sub end_problem {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ my $result;
+
+ if (!$Apache::lonxml::metamode) {
+ $result = &Apache::lonxml::endredirection(); #started in &start_problem
+ $Apache::lonxml::post_evaluate=0;
+ }
+
+ if ($target eq 'tex') {
+ # Figure out the front matter and replace the
+ # INSERTTEXFRONTMATTERHERE in result with it. note that we do
+ # this in end_problem because whether or not we display due
+ # dates depends on whether due dates have already been
+ # displayed in the problem parts.
+
+ my $frontmatter = '';
+ my $startminipage = '';
+ if (not $env{'form.problem_split'}=~/yes/) {
+ $startminipage = '\begin{minipage}{\textwidth}';
}
- $Apache::lonhomework::name=$name;
my $id = $Apache::inputtags::part;
- my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
- $duedate = POSIX::strftime("%c",localtime($duedate));
+ my $weight = &Apache::lonnet::EXT("resource.$id.weight");
+ my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
+ my @packages = split /,/,$packages;
+ my $allow_print_points = 0;
+ foreach my $partial_key (@packages) {
+ if ($partial_key=~m/^part_0$/) {
+ $allow_print_points=1;
+ }
+ }
+ my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
+ if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
+ if (lc($env{'course.'.$env{'request.course.id'}.
+ '.disableexampointprint'}) eq 'yes') {
+ $allow_print_points=0;
+ }
+ my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
+ my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource
"'.$name_of_resourse.'"
located in '.$env{'request.uri'}.' STAMPOFPASSEDRESOURCEEND} \noindent ';
+ my $toc_line='\vskip 1 mm\noindent '.$startminipage.
+ '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
+
+ # Figure out what the due date is and if we need to print
+ # it in the problem header. We have been logging the
+ # last due date written to file.
+
+ my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
+ my $duedate = POSIX::strftime("%c",localtime($duetime));
my $temp_file;
- my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
- if (-e $filename) {
- $temp_file = Apache::File->new($filename);
+ my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
+
+ # Figure out what the last printed due date is or set it
+ # to the epoch if no duedates have been printed.
+
+ my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
+ if (-e $filename) {
+ $temp_file = Apache::File->new($filename);
+ my @due_file = <$temp_file>;
+ $due_file_content = $due_file[$#due_file];
+ chomp $due_file_content;
+ }
+
+ # We display the due date iff it is not the same as the last
+ # duedate in problem header ($due_file_content), and
+ # none of our parts displayed a duedate.
+ #
+ my $parts_with_displayduedate;
+ if (defined $Apache::outputtags::showonce{'displayduedate'}) {
+ $parts_with_displayduedate =
+ scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
} else {
- $temp_file = Apache::File->new('>>'.$filename);
+ $parts_with_displayduedate = 0;
}
- my @due_file_content = <$temp_file>;
- my $due_file_content = $due_file_content[$#due_file_content];
- chomp $due_file_content;
- if ($due_file_content ne $duedate) {
- $temp_file = Apache::File->new('>'.$filename);
- print $temp_file "$duedate\n";
- if (not $ENV{'request.symb'} =~ m/\.page_/) {
- if(not $duedate=~m/1969/) {
- $result .= '\begin{document} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent \begin{minipage}{\textwidth}';
+ if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
+ $temp_file = Apache::File->new('>'.$filename);
+ print $temp_file "$duetime\n";
+ if (not $env{'request.symb'} =~ m/\.page_/) {
+ if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
+ $frontmatter .= $begin_doc.
+ '\textit{Due date: '.$duedate.'} '.$toc_line;
} else {
- $result .= '\begin{document} \noindent \vskip 1 mm \noindent\begin{minipage}{\textwidth}';
+ $frontmatter.= $begin_doc.$toc_line;
+ if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
}
} else {
- $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
- }
+ $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
+ }
} else {
- if (not $ENV{'request.symb'} =~ m/\.page_/) {
- $result .= '\begin{document} \noindent \vskip 1 mm\noindent\begin{minipage}{\textwidth}';
+ if (not $env{'request.symb'} =~ m/\.page_/) {
+ $frontmatter .= $begin_doc.$toc_line;
+ if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
} else {
- $result .= '\vskip 1mm \\\\\\\\';
- }
+ $frontmatter .= '\vskip 1mm \\\\\\\\';
+ }
}
+ $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
}
- } elsif ($target eq 'edit') {
- $result.=$head_tag_start."".$body_tag_start.$form_tag_start.
- &problem_edit_header();
- my $temp=&Apache::edit::insertlist($target,$token);
- $result.=$temp;
- } elsif ($target eq 'modified') {
- $result=$token->[4];
- $result.=&Apache::edit::handle_insert();
- } else {
- # page_start returned a starting result, delete it if we don't need it
- $result = '';
- }
- return $result;
-}
-sub end_problem {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my $result='';
- my $status=$Apache::inputtags::status['-1'];
- if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex') {
- if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
- # if part is zero, no s existed, so we need to the grading
- &Apache::inputtags::grade;
- } elsif ( ($target eq 'web' || $target eq 'tex') && $Apache::inputtags::part eq '0' &&
- $status ne 'UNCHECKEDOUT') {
- # if part is zero, no s existed, so we need show the current
- # grading status
- my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
- if ($Apache::lonhomework::type ne 'exam') {$result.= $gradestatus;}
- }
- if (
- (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
- ($target eq 'answer') || ($target eq 'tex')
- ) {
- if ($status eq 'CAN_ANSWER') {
- if ($target ne 'tex') {
- $result.="