--- loncom/homework/structuretags.pm 2000/11/28 20:11:25 1.15
+++ loncom/homework/structuretags.pm 2005/06/04 02:56:44 1.293
@@ -1,171 +1,1462 @@
-# The LearningOnline Network with CAPA # '."\n".
+ ''."\n";
+ }
+ return $body_tag_start;
+}
+
+sub page_start {
+ my ($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);
+ $head_tag_start='
'.&Apache::lonmenu::registerurl(undef,$target).
+ &Apache::lonhtmlcommon::htmlareaheaders().
+ &Apache::lonhtmlcommon::spellheader().
+ &Apache::lonxml::fontsettings();
+ }
+ my $body_tag_start;
+ if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
+ && $env{'environment.remote'} eq 'off') {
+ $body_tag_start=&Apache::loncommon::bodytag();
+ $body_tag_start.=&Apache::lonxml::message_location();
+ } elsif (!defined($found{'body'})) {
+ my $background=&Apache::lonxml::get_param('background',$parstack,
+ $safeeval);
+ my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
+ $safeeval);
+ $body_tag_start=&body_tag_start($background,$bgcolor);
+ if ( ($target eq 'web' || $target eq 'webgrade')
+ && $env{'request.state'} ne 'construct') {
+ my ($symb,undef,undef,undef,$publicuser)=
+ &Apache::lonxml::whichuser();
+ if ($symb eq '' && !$publicuser) {
+ my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
+ $help=&mt("Browsing resource, all submissions are temporary.")." ";
+ $body_tag_start.=$help;
+ }
+ }
+ $body_tag_start.=&Apache::lonxml::message_location();
+ }
+ my $form_tag_start;
+ if (!defined($found{'form'})) {
+ $form_tag_start='\n".&Apache::loncommon::endbodytag()."\n";
+}
+
+sub option {
+ my ($value,$name) = @_;
+ my $result ="';
+ return $result;
+}
+
+sub problem_web_to_edit_header {
+ my ($rndseed)=@_;
+ my $result.='
+
+
+
+
+
+
+ '.&mt(' Show All Foils').
+ &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
+ ' ';
+ $result.="
+
+Problem Status:
+
+
+ ".&option('CLOSED' ,'problemstate').&mt("Closed")."
+ ".&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:
+
+
+ ".&option('exam' ,'problemtype').&mt("Exam Problem")."
+ ".&option('problem','problemtype').&mt("Homework problem")."
+ ".&option('survey' ,'problemtype').&mt("Survey Question")."
+
+
+
+Feedback Mode:
+
+
+ ".&option('yes','problemstatus').&mt("Show Feedback")."
+ ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."
+
+
+
+ ";
+ 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).
+ ' ';
+ return $result;
+}
+
+sub initialize_storage {
+ %Apache::lonhomework::results=();
+ %Apache::lonhomework::history=();
+ my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ if ($env{'request.state'} eq 'construct' || $symb eq '') {
+ %Apache::lonhomework::history=
+ &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$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 ;
+ 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 $result;
+ if (%Apache::lonhomework::results) {
+ my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ if ($env{'request.state'} eq 'construct' || $symb eq '') {
+ $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
+ $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
+ $env{'request.uri'},'',$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);
+ }
+ }
+ }
+ 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);
+ }
+}
+
+sub checkout_msg {
+ 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?');
+ 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 $foldertitle");
+ return (<The resources in "$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 ($type)=@_;
+ #initialize globals
+ if ($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;
+ }
+ @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);
+
+}
+
+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);
+}
+
+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)=@_;
+
+ 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);
+ return '';
+ }
+
+ $Apache::lonhomework::parsing_a_problem=1;
+ &init_problem_globals('problem');
+
+ if (defined($env{'scantron.maxquest'})) {
+ $Apache::lonhomework::scantronmode=1;
+ }
+
+ &initialize_storage();
+ if ($target ne 'analyze') {
+ if ($target eq 'web') {
+ &Apache::lonhomework::showhash(%Apache::lonhomework::history);
+ }
+ if ($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 :$Apache::ltonhomework::type:");
+ }
+ if ($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:");
+ }
+ }
+
+ #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 $accessmsg;
+
+ #should get back a or the neccesary stuff to start XML/MathML
+ my ($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 '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;
+ }
+ $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
+ }
+ if ($env{'form.markaccess'}) {
+ &Apache::lonnet::set_first_access('map');
+ }
+ #handle rand seed in construction space
+ my $rndseed=&setup_rndseed($safeeval);
+ my ($symb)=&Apache::lonxml::whichuser();
+ if ($env{'request.state'} ne "construct" && $symb eq '') {
+ $form_tag_start.=' '.
+ ' '.
+ ' ';
+ if ($env{'user.adv'}) {
+ $form_tag_start.=
+ ' '.&mt(' Show All Foils');
+ }
+ $form_tag_start.=' ';
+ }
+ ($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);
+ &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 'INVALID_ACCESS')) {
+ my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
+ if ( $target eq "web" ) {
+ $result.= $head_tag_start.'';
+ my $msg=$body_tag_start;
+ 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);
+ }
+ $result.=$msg.' ';
+ } elsif ($target eq 'tex') {
+ $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
+ if ($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')." $accessmsg \\vskip 0 mm ";
+ }
+ }
+ } elsif ($target eq 'web') {
+ my $name= &get_resource_name($parstack,$safeeval);
+ $result.="$head_tag_start$name
+ $body_tag_start \n $form_tag_start".
+ ' ';
+ # create a page header and exit
+ if ($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') {
+ my $startminipage = '';
+ if (not $env{'form.problem_split'}=~/yes/) {
+ $startminipage = '\begin{minipage}{\textwidth}';
+ }
+ my $id = $Apache::inputtags::part;
+ 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; }
+ my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
+ $duedate = POSIX::strftime("%c",localtime($duedate));
+ 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);
+ } else {
+ $temp_file = Apache::File->new('>>'.$filename);
+ }
+ my @due_file_content = <$temp_file>;
+ my $due_file_content = $due_file_content[$#due_file_content];
+ chomp $due_file_content;
+ my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
+ if ($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/ and $Apache::lonhomework::type ne 'exam') {
+ $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource "'.$name_of_resourse.'" located in '.$env{'request.uri'}.' STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
+ } else {
+ $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource "'.$name_of_resourse.'" located in '.$env{'request.uri'}.' STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
+ if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
+ }
+ } else {
+ $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
+ }
+ } else {
+ if (not $env{'request.symb'} =~ m/\.page_/) {
+ $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource "'.$name_of_resourse.'" located in '.$env{'request.uri'}.' STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
+ if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
+ } else {
+ $result .= '\vskip 1mm \\\\\\\\';
+ }
+ }
+ }
+ } elsif ($target eq 'edit') {
+ $result.=$head_tag_start."".$body_tag_start.$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];
+ $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 {
- return "