'.
+ ''.
+ ' Prob. '.($env{'form.vProb'} eq 'no' ? 'Title' : 'Problem Text').'/Grade ';
+
+ &Apache::lonxml::clear_problem_counter();
+ my ($depth,$question,$prob) = (1,1,1);
+ $iterator->next(); # skip the first BEGIN_MAP
+ my $curRes = $iterator->next(); # for "current resource"
+ while ($depth > 0) {
+ if($curRes == $iterator->BEGIN_MAP) { $depth++; }
+ if($curRes == $iterator->END_MAP) { $depth--; }
+
+ if (ref($curRes) && $curRes->is_problem()) {
+ my $parts = $curRes->parts();
+ my $title = $curRes->compTitle();
+ my $symbx = $curRes->symb();
+ $studentTable.=''.$prob.
+ (scalar(@{$parts}) == 1 ? '' : ' ';
+ $studentTable.='';
+ my %form = ('CODE' => $env{'form.CODE'},);
+ if ($env{'form.vProb'} eq 'yes' ) {
+ $studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
+ undef,'both',\%form);
+ } else {
+ my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
+ $companswer =~ s|||g;
+ $companswer =~ s|||g;
+# while ($companswer =~ /()/s) { # ||g;
+ $studentTable.=' '.$title.' Correct answer: No recorded submission for this problem
'."\n".
+ ''.&mt('Date/Time').' '.
+ ($isCODE?''.&mt('CODE').' ':'').
+ ''.&mt('Submission').' '.
+ ''.&mt('Status').' '.
+ &Apache::loncommon::end_data_table_header_row();
+ my ($version);
+ my %mark;
+ my %orders;
+ $mark{'correct_by_student'} = $checkIcon;
+ if (!exists($$record{'1:timestamp'})) {
+ return ''.&mt('Nothing submitted - no attempts').' '.$timestamp.' ';
+ if ($isCODE) {
+ $studentTable.=''.$record->{$version.':resource.CODE'}.' ';
+ }
+ my @versionKeys = split(/\:/,$$record{$version.':keys'});
+ my @displaySub = ();
+ foreach my $partid (@{$parts}) {
+ my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
+ : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
+
+
+# next if ($$record{"$version:resource.$partid.solved"} eq '');
+ my $display_part=&get_display_part($partid,$symb);
+ foreach my $matchKey (@matchKey) {
+ if (exists($$record{$version.':'.$matchKey}) &&
+ $$record{$version.':'.$matchKey} ne '') {
+
+ my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
+ : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
+ $displaySub[0].=''.&mt('Part:').' '.$display_part.' ';
+ $displaySub[0].='('.&mt('ID').' '.
+ $responseId.') ';
+ if ($$record{"$where.$partid.tries"} eq '') {
+ $displaySub[0].=&mt('Trial not counted');
+ } else {
+ $displaySub[0].=&mt('Trial [_1]',
+ $$record{"$where.$partid.tries"});
+ }
+ my $responseType=($isTask ? 'Task'
+ : $responseType->{$partid}->{$responseId});
+ if (!exists($orders{$partid})) { $orders{$partid}={}; }
+ if (!exists($orders{$partid}->{$responseId})) {
+ $orders{$partid}->{$responseId}=
+ &get_order($partid,$responseId,$symb,$uname,$udom);
+ }
+ $displaySub[0].=' '.
+ &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom).'Part: '.$display_part.' '.
+ lc($$record{"$where.$partid.award"}).' '.
+ $mark{$$record{"$where.$partid.solved"}}.
+ ''.&mt('Part').': '.$display_part.')';
+ } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
+ $displaySub[2].=
+ $$record{"$version:resource.$partid.regrader"}.
+ ' ('.&mt('Part').': '.$display_part.')';
+ }
+ }
+ # needed because old essay regrader has not parts info
+ if (exists $$record{"$version:resource.regrader"}) {
+ $displaySub[2].=$$record{"$version:resource.regrader"};
+ }
+ $studentTable.=''.$displaySub[0].' '.$displaySub[1];
+ if ($displaySub[2]) {
+ $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
+ }
+ $studentTable.=' '.
+ &Apache::loncommon::end_data_table_row();
+ }
+ $studentTable.=&Apache::loncommon::end_data_table();
+ return $studentTable;
+}
+
+sub updateGradeByPage {
+ my ($request) = shift;
+
+ my $cdom = $env{"course.$env{'request.course.id'}.domain"};
+ my $cnum = $env{"course.$env{'request.course.id'}.num"};
+ my $getsec = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
+ my $pageTitle = $env{'form.page'};
+ my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
+ my ($uname,$udom) = split(/:/,$env{'form.student'});
+ my $usec=$classlist->{$env{'form.student'}}[5];
+ if (!&canmodify($usec)) {
+ $request->print('Unable to modify requested student.('.$env{'form.student'}.' ');
+ $request->print(&show_grading_menu_form($env{'form.symb'}));
+ return;
+ }
+ my $result=' '.$env{'form.title'}.' Student: '.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
+ ' '."\n";
+
+ $request->print($result);
+
+ my $navmap = Apache::lonnavmaps::navmap->new();
+ my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
+ my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
+ if (!$map) {
+ $request->print('Unable to grade requested sequence. ('.$resUrl.') ');
+ my ($symb)=&get_symb($request);
+ $request->print(&show_grading_menu_form($symb));
+ return;
+ }
+ my $iterator = $navmap->getIterator($map->map_start(),
+ $map->map_finish());
+
+ my $studentTable=''.
+ ''.
+ ' Prob. Title Previous Score New Score ';
+
+ $iterator->next(); # skip the first BEGIN_MAP
+ my $curRes = $iterator->next(); # for "current resource"
+ my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
+ while ($depth > 0) {
+ if($curRes == $iterator->BEGIN_MAP) { $depth++; }
+ if($curRes == $iterator->END_MAP) { $depth--; }
+
+ if (ref($curRes) && $curRes->is_problem()) {
+ my $parts = $curRes->parts();
+ my $title = $curRes->compTitle();
+ my $symbx = $curRes->symb();
+ $studentTable.=''.$prob.
+ (scalar(@{$parts}) == 1 ? '' : ' ';
+ $studentTable.=' '.$title.' ';
+
+ my %newrecord=();
+ my @displayPts=();
+ my %aggregate = ();
+ my $aggregateflag = 0;
+ foreach my $partid (@{$parts}) {
+ my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
+ my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
+
+ my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ?
+ $env{'form.WGT'.$question.'_'.$partid} : 1;
+ my $partial = $newpts/$wgt;
+ my $score;
+ if ($partial > 0) {
+ $score = 'correct_by_override';
+ } elsif ($newpts ne '') { #empty is taken as 0
+ $score = 'incorrect_by_override';
+ }
+ my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
+ if ($dropMenu eq 'excused') {
+ $partial = '';
+ $score = 'excused';
+ } elsif ($dropMenu eq 'reset status'
+ && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
+ $newrecord{'resource.'.$partid.'.tries'} = 0;
+ $newrecord{'resource.'.$partid.'.solved'} = '';
+ $newrecord{'resource.'.$partid.'.award'} = '';
+ $newrecord{'resource.'.$partid.'.awarded'} = 0;
+ $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
+ $changeflag++;
+ $newpts = '';
+
+ my $aggtries = $env{'form.aggtries'.$question.'_'.$partid};
+ my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
+ my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
+ if ($aggtries > 0) {
+ &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
+ $aggregateflag = 1;
+ }
+ }
+ my $display_part=&get_display_part($partid,$curRes->symb());
+ my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
+ $displayPts[0].=' Part: '.$display_part.' = '.
+ (($oldstatus eq 'excused') ? 'excused' : $oldpts).
+ ' Part: '.$display_part.' = '.
+ (($score eq 'excused') ? 'excused' : $newpts).
+ ' '.$displayPts[0].' '.
+ ''.$displayPts[1].' '.
+ '
';
+ $studentTable.=&show_grading_menu_form($env{'form.symb'});
+ my $grademsg=($changeflag == 0 ? 'No score was changed or updated.' :
+ 'The scores were changed for '.
+ $changeflag.' problem'.($changeflag == 1 ? '.' : 's.'));
+ $request->print($grademsg.$studentTable);
+
+ return '';
+}
+
+#-------- end of section for handling grading by page/sequence ---------
+#
+#-------------------------------------------------------------------
+
+#--------------------Scantron Grading-----------------------------------
+#
+#------ start of section for handling grading by page/sequence ---------
+
+=pod
+
+=head1 Bubble sheet grading routines
+
+ For this documentation:
+
+ 'scanline' refers to the full line of characters
+ from the file that we are parsing that represents one entire sheet
+
+ 'bubble line' refers to the data
+ representing the line of bubbles that are on the physical bubble sheet
+
+
+The overall process is that a scanned in bubble sheet data is uploaded
+into a course. When a user wants to grade, they select a
+sequence/folder of resources, a file of bubble sheet info, and pick
+one of the predefined configurations for what each scanline looks
+like.
+
+Next each scanline is checked for any errors of either 'missing
+bubbles' (it's an error because it may have been mis-scanned
+because too light bubbling), 'double bubble' (each bubble line should
+have no more that one letter picked), invalid or duplicated CODE,
+invalid student ID
+
+If the CODE option is used that determines the randomization of the
+homework problems, either way the student ID is looked up into a
+username:domain.
+
+During the validation phase the instructor can choose to skip scanlines.
+
+After the validation phase, there are now 3 bubble sheet files
+
+ scantron_original_filename (unmodified original file)
+ scantron_corrected_filename (file where the corrected information has replaced the original information)
+ scantron_skipped_filename (contains the exact text of scanlines that where skipped)
+
+Also there is a separate hash nohist_scantrondata that contains extra
+correction information that isn't representable in the bubble sheet
+file (see &scantron_getfile() for more information)
+
+After all scanlines are either valid, marked as valid or skipped, then
+foreach line foreach problem in the picked sequence, an ssi request is
+made that simulates a user submitting their selected letter(s) against
+the homework problem.
+
+=over 4
+
+
+
+=item defaultFormData
+
+ Returns html hidden inputs used to hold context/default values.
+
+ Arguments:
+ $symb - $symb of the current resource
+
+=cut
+
+sub defaultFormData {
+ my ($symb)=@_;
+ return ''."\n";
+ my ($titles,$symbx) = &getSymbMap();
+ my ($curpage)=&Apache::lonnet::decode_symb($symb);
+ my $ctr=0;
+ foreach (@$titles) {
+ my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+ $result.=''.$showtitle.' '."\n";
+ $ctr++;
+ }
+ $result.= ' ';
+ return $result;
+}
+
+
+=pod
+
+=item scantron_filenames
+
+ Returns a list of the scantron files in the current course
+
+=cut
+
+sub scantron_filenames {
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my @files=&Apache::lonnet::dirlist('userfiles',$cdom,$cname,
+ &propath($cdom,$cname));
+ my @possiblenames;
+ foreach my $filename (sort(@files)) {
+ ($filename)=split(/&/,$filename);
+ if ($filename!~/^scantron_orig_/) { next ; }
+ $filename=~s/^scantron_orig_//;
+ push(@possiblenames,$filename);
+ }
+ return @possiblenames;
+}
+
+=pod
+
+=item scantron_uploads
+
+ Returns html drop-down list of scantron files in current course.
+
+ Arguments:
+ $file2grade - filename to set as selected in the dropdown
+
+=cut
+
+sub scantron_uploads {
+ my ($file2grade) = @_;
+ my $result= '';
+ $result.="$filename\n";
+ }
+ $result.=" ";
+ return $result;
+}
+
+=pod
+
+=item scantron_scantab
+
+ Returns html drop down of the scantron formats in the scantronformat.tab
+ file.
+
+=cut
+
+sub scantron_scantab {
+ my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
+ my $result=''."\n";
+ $result.=''.$descrip.' '."\n";
+ }
+ $result.=' '."\n";
+
+ return $result;
+}
+
+=pod
+
+=item scantron_CODElist
+
+ Returns html drop down of the saved CODE lists from current course,
+ generated from earlier printings.
+
+=cut
+
+sub scantron_CODElist {
+ my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+ my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
+ my $namechoice=''.$name.' ';
+ }
+ $namechoice=''.$namechoice.' ';
+ return $namechoice;
+}
+
+=pod
+
+=item scantron_CODEunique
+
+ Returns the html for "Each CODE to be used once" radio.
+
+=cut
+
+sub scantron_CODEunique {
+ my $result='
+
+
+ ';
+ return $result;
+}
+
+=pod
+
+=item scantron_selectphase
+
+ Generates the initial screen to start the bubble sheet process.
+ Allows for - starting a grading run.
+ - downloading existing scan data (original, corrected
+ or skipped info)
+
+ - uploading new scan data
+
+ Arguments:
+ $r - The Apache request object
+ $file2grade - name of the file that contain the scanned data to score
+
+=cut
+
+sub scantron_selectphase {
+ my ($r,$file2grade) = @_;
+ my ($symb)=&get_symb($r);
+ if (!$symb) {return '';}
+ my $sequence_selector=&getSequenceDropDown($symb);
+ my $default_form_data=&defaultFormData($symb);
+ my $grading_menu_button=&show_grading_menu_form($symb);
+ my $file_selector=&scantron_uploads($file2grade);
+ my $format_selector=&scantron_scantab();
+ my $CODE_selector=&scantron_CODElist();
+ my $CODE_unique=&scantron_CODEunique();
+ my $result;
+
+ # Chunk of form to prompt for a file to grade and how:
+
+ $result.= <
+
+
+
+SCANTRONFORM
+
+ $r->print($result);
+
+ if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
+ &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
+
+ # Chunk of form to prompt for a scantron file upload.
+
+ $r->print(<
+
+
+
+
+ Specify a Scantron data file to upload.
+
+
+
+
+SCANTRONFORM
+ my $default_form_data=&defaultFormData(&get_symb($r,1));
+ my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
+ $r->print(<
+ function checkUpload(formname) {
+ if (formname.upfile.value == "") {
+ alert("Please use the browse button to select a file from your local directory.");
+ return false;
+ }
+ formname.submit();
+ }
+
+
+
+UPLOAD
+
+ $r->print(<
+
+
+
+
+
+
+SCANTRONFORM
+
+ $r->print('');
+ &Apache::lonpickcode::code_list($r,2);
+ $r->print('
');
+ $r->print($grading_menu_button);
+ return
+}
+
+=pod
+
+=item get_scantron_config
+
+ Parse and return the scantron configuration line selected as a
+ hash of configuration file fields.
+
+ Arguments:
+ which - the name of the configuration to parse from the file.
+
+
+ Returns:
+ If the named configuration is not in the file, an empty
+ hash is returned.
+ a hash with the fields
+ name - internal name for the this configuration setup
+ description - text to display to operator that describes this config
+ CODElocation - if 0 or the string 'none'
+ - no CODE exists for this config
+ if -1 || the string 'letter'
+ - a CODE exists for this config and is
+ a string of letters
+ Unsupported value (but planned for future support)
+ if a positive integer
+ - The CODE exists as the first n items from
+ the question section of the form
+ if the string 'number'
+ - The CODE exists for this config and is
+ a string of numbers
+ CODEstart - (only matter if a CODE exists) column in the line where
+ the CODE starts
+ CODElength - length of the CODE
+ IDstart - column where the student ID number starts
+ IDlength - length of the student ID info
+ Qstart - column where the information from the bubbled
+ 'questions' start
+ Qlength - number of columns comprising a single bubble line from
+ the sheet. (usually either 1 or 10)
+ Qon - either a single character representing the character used
+ to signal a bubble was chosen in the positional setup, or
+ the string 'letter' if the letter of the chosen bubble is
+ in the final, or 'number' if a number representing the
+ chosen bubble is in the file (1->A 0->J)
+ Qoff - the character used to represent that a bubble was
+ left blank
+ PaperID - if the scanning process generates a unique number for each
+ sheet scanned the column that this ID number starts in
+ PaperIDlength - number of columns that comprise the unique ID number
+ for the sheet of paper
+ FirstName - column that the first name starts in
+ FirstNameLength - number of columns that the first name spans
+
+ LastName - column that the last name starts in
+ LastNameLength - number of columns that the last name spans
+
+=cut
+
+sub get_scantron_config {
+ my ($which) = @_;
+ my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
+ my %config;
+ #FIXME probably should move to XML it has already gotten a bit much now
+ foreach my $line (<$fh>) {
+ my ($name,$descrip)=split(/:/,$line);
+ if ($name ne $which ) { next; }
+ chomp($line);
+ my @config=split(/:/,$line);
+ $config{'name'}=$config[0];
+ $config{'description'}=$config[1];
+ $config{'CODElocation'}=$config[2];
+ $config{'CODEstart'}=$config[3];
+ $config{'CODElength'}=$config[4];
+ $config{'IDstart'}=$config[5];
+ $config{'IDlength'}=$config[6];
+ $config{'Qstart'}=$config[7];
+ $config{'Qlength'}=$config[8];
+ $config{'Qoff'}=$config[9];
+ $config{'Qon'}=$config[10];
+ $config{'PaperID'}=$config[11];
+ $config{'PaperIDlength'}=$config[12];
+ $config{'FirstName'}=$config[13];
+ $config{'FirstNamelength'}=$config[14];
+ $config{'LastName'}=$config[15];
+ $config{'LastNamelength'}=$config[16];
+ last;
+ }
+ return %config;
+}
+
+=pod
+
+=item username_to_idmap
+
+ creates a hash keyed by student id with values of the corresponding
+ student username:domain.
+
+ Arguments:
+
+ $classlist - reference to the class list hash. This is a hash
+ keyed by student name:domain whose elements are references
+ to arrays containing various chunks of information
+ about the student. (See loncoursedata for more info).
+
+ Returns
+ %idmap - the constructed hash
+
+=cut
+
+sub username_to_idmap {
+ my ($classlist)= @_;
+ my %idmap;
+ foreach my $student (keys(%$classlist)) {
+ $idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
+ $student;
+ }
+ return %idmap;
+}
+
+=pod
+
+=item scantron_fixup_scanline
+
+ Process a requested correction to a scanline.
+
+ Arguments:
+ $scantron_config - hash from &get_scantron_config()
+ $scan_data - hash of correction information
+ (see &scantron_getfile())
+ $line - existing scanline
+ $whichline - line number of the passed in scanline
+ $field - type of change to process
+ (either
+ 'ID' -> correct the student ID number
+ 'CODE' -> correct the CODE
+ 'answer' -> fixup the submitted answers)
+
+ $args - hash of additional info,
+ - 'ID'
+ 'newid' -> studentID to use in replacement
+ of existing one
+ - 'CODE'
+ 'CODE_ignore_dup' - set to true if duplicates
+ should be ignored.
+ 'CODE' - is new code or 'use_unfound'
+ if the existing unfound code should
+ be used as is
+ - 'answer'
+ 'response' - new answer or 'none' if blank
+ 'question' - the bubble line to change
+
+ Returns:
+ $line - the modified scanline
+
+ Side effects:
+ $scan_data - may be updated
+
+=cut
+
+
+sub scantron_fixup_scanline {
+ my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
+
+ if ($field eq 'ID') {
+ if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
+ return ($line,1,'New value too large');
+ }
+ if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
+ $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
+ $args->{'newid'});
+ }
+ substr($line,$$scantron_config{'IDstart'}-1,
+ $$scantron_config{'IDlength'})=$args->{'newid'};
+ if ($args->{'newid'}=~/^\s*$/) {
+ &scan_data($scan_data,"$whichline.user",
+ $args->{'username'}.':'.$args->{'domain'});
+ }
+ } elsif ($field eq 'CODE') {
+ if ($args->{'CODE_ignore_dup'}) {
+ &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
+ }
+ &scan_data($scan_data,"$whichline.useCODE",'1');
+ if ($args->{'CODE'} ne 'use_unfound') {
+ if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
+ return ($line,1,'New CODE value too large');
+ }
+ if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
+ $args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
+ }
+ substr($line,$$scantron_config{'CODEstart'}-1,
+ $$scantron_config{'CODElength'})=$args->{'CODE'};
+ }
+ } elsif ($field eq 'answer') {
+ my $length=$scantron_config->{'Qlength'};
+ my $off=$scantron_config->{'Qoff'};
+ my $on=$scantron_config->{'Qon'};
+ my $answer=${off}x$length;
+ if ($args->{'response'} eq 'none') {
+ &scan_data($scan_data,
+ "$whichline.no_bubble.".$args->{'question'},'1');
+ } else {
+ if ($on eq 'letter') {
+ my @alphabet=('A'..'Z');
+ $answer=$alphabet[$args->{'response'}];
+ } elsif ($on eq 'number') {
+ $answer=$args->{'response'}+1;
+ if ($answer == 10) { $answer = '0'; }
+ } else {
+ substr($answer,$args->{'response'},1)=$on;
+ }
+ &scan_data($scan_data,
+ "$whichline.no_bubble.".$args->{'question'},undef,'1');
+ }
+ my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
+ substr($line,$where-1,$length)=$answer;
+ }
+ return $line;
+}
+
+=pod
+
+=item scan_data
+
+ Edit or look up an item in the scan_data hash.
+
+ Arguments:
+ $scan_data - The hash (see scantron_getfile)
+ $key - shorthand of the key to edit (actual key is
+ scantronfilename_key).
+ $data - New value of the hash entry.
+ $delete - If true, the entry is removed from the hash.
+
+ Returns:
+ The new value of the hash table field (undefined if deleted).
+
+=cut
+
+
+sub scan_data {
+ my ($scan_data,$key,$value,$delete)=@_;
+ my $filename=$env{'form.scantron_selectfile'};
+ if (defined($value)) {
+ $scan_data->{$filename.'_'.$key} = $value;
+ }
+ if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
+ return $scan_data->{$filename.'_'.$key};
+}
+
+=pod
+
+=item scantron_parse_scanline
+
+ Decodes a scanline from the selected scantron file
+
+ Arguments:
+ line - The text of the scantron file line to process
+ whichline - Line number
+ scantron_config - Hash describing the format of the scantron lines.
+ scan_data - Hash of extra information about the scanline
+ (see scantron_getfile for more information)
+ just_header - True if should not process question answers but only
+ the stuff to the left of the answers.
+ Returns:
+ Hash containing the result of parsing the scanline
+
+ Keys are all proceeded by the string 'scantron.'
+
+ CODE - the CODE in use for this scanline
+ useCODE - 1 if the CODE is invalid but it usage has been forced
+ by the operator
+ CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
+ CODEs were selected, but the usage has been
+ forced by the operator
+ ID - student ID
+ PaperID - if used, the ID number printed on the sheet when the
+ paper was scanned
+ FirstName - first name from the sheet
+ LastName - last name from the sheet
+
+ if just_header was not true these key may also exist
+
+ missingerror - a list of bubble ranges that are considered to be answers
+ to a single question that don't have any bubbles filled in.
+ Of the form questionnumber:firstbubblenumber:count.
+ doubleerror - a list of bubble ranges that are considered to be answers
+ to a single question that have more than one bubble filled in.
+ Of the form questionnumber::firstbubblenumber:count
+
+ In the above, count is the number of bubble responses in the
+ input line needed to represent the possible answers to the question.
+ e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
+ per line would have count = 2.
+
+ maxquest - the number of the last bubble line that was parsed
+
+ ( starts at 1)
+ .answer - zero or more letters representing the selected
+ letters from the scanline for the bubble line
+ .
+ if blank there was either no bubble or there where
+ multiple bubbles, (consult the keys missingerror and
+ doubleerror if this is an error condition)
+
+=cut
+
+sub scantron_parse_scanline {
+ my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
+
+ my %record;
+ my $questions=substr($line,$$scantron_config{'Qstart'}-1); # Answers
+ my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # earlier stuff
+ if (!($$scantron_config{'CODElocation'} eq 0 ||
+ $$scantron_config{'CODElocation'} eq 'none')) {
+ if ($$scantron_config{'CODElocation'} < 0 ||
+ $$scantron_config{'CODElocation'} eq 'letter' ||
+ $$scantron_config{'CODElocation'} eq 'number') {
+ $record{'scantron.CODE'}=substr($data,
+ $$scantron_config{'CODEstart'}-1,
+ $$scantron_config{'CODElength'});
+ if (&scan_data($scan_data,"$whichline.useCODE")) {
+ $record{'scantron.useCODE'}=1;
+ }
+ if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
+ $record{'scantron.CODE_ignore_dup'}=1;
+ }
+ } else {
+ #FIXME interpret first N questions
+ }
+ }
+ $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
+ $$scantron_config{'IDlength'});
+ $record{'scantron.PaperID'}=
+ substr($data,$$scantron_config{'PaperID'}-1,
+ $$scantron_config{'PaperIDlength'});
+ $record{'scantron.FirstName'}=
+ substr($data,$$scantron_config{'FirstName'}-1,
+ $$scantron_config{'FirstNamelength'});
+ $record{'scantron.LastName'}=
+ substr($data,$$scantron_config{'LastName'}-1,
+ $$scantron_config{'LastNamelength'});
+ if ($just_header) { return \%record; }
+
+ my @alphabet=('A'..'Z');
+ my $questnum=0;
+ my $ansnum =1; # Multiple 'answer lines'/question.
+
+ chomp($questions); # Get rid of any trailing \n.
+ $questions =~ s/\r$//; # Get rid of trailing \r too (MAC or Win uploads).
+ while (length($questions)) {
+ my $answers_needed = $bubble_lines_per_response{$questnum};
+ my $answer_length = $$scantron_config{'Qlength'} * $answers_needed;
+
+
+
+ $questnum++;
+ my $currentquest = substr($questions,0,$answer_length);
+ $questions = substr($questions,0,$answer_length)='';
+ if (length($currentquest) < $answer_length) { next; }
+
+ # Qon letter implies for each slot in currentquest we have:
+ # ? or * for doubles a letter in A-Z for a bubble and
+ # about anything else (esp. a value of Qoff for missing
+ # bubbles.
+
+
+ if ($$scantron_config{'Qon'} eq 'letter') {
+
+ if ($currentquest =~ /\?/
+ || $currentquest =~ /\*/
+ || (&occurence_count($currentquest, "[A-Z]") > 1)) {
+ push(@{$record{'scantron.doubleerror'}},$questnum);
+ for (my $ans = 0; $ans < $answers_needed; $ans++) {
+ my $bubble = substr($currentquest, $ans, 1);
+ if ($bubble =~ /[A-Z]/ ) {
+ $record{"scantron.$ansnum.answer"} = $bubble;
+ } else {
+ $record{"scantron.$ansnum.answer"}='';
+ }
+ $ansnum++;
+ }
+
+ } elsif (!defined($currentquest)
+ || (&occurence_count($currentquest, $$scantron_config{'Qoff'}) == length($currentquest))
+ || (&occurence_count($currentquest, "[A-Z]") == 0)) {
+ for (my $ans = 0; $ans < $answers_needed; $ans++ ) {
+ $record{"scantron.$ansnum.answer"}='';
+ $ansnum++;
+
+ }
+ if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) {
+ push(@{$record{"scantron.missingerror"}},$questnum);
+ # $ansnum += $answers_needed;
+ }
+ } else {
+ for (my $ans = 0; $ans < $answers_needed; $ans++) {
+ $record{"scantron.$ansnum.answer"} = substr($currentquest, $ans, 1);
+ $ansnum++;
+ }
+ }
+
+ # Qon 'number' implies each slot gives a digit that indexes the
+ # the bubbles filled or Qoff or a non number for unbubbled lines.
+ # and *? for double bubbles on a line.
+ # these answers are also stored as letters.
+
+ } elsif ($$scantron_config{'Qon'} eq 'number') {
+ if ($currentquest =~ /\?/
+ || $currentquest =~ /\*/
+ || (&occurence_count($currentquest, '\d') > 1)) {
+ push(@{$record{'scantron.doubleerror'}},$questnum);
+ for (my $ans = 0; $ans < $answers_needed; $ans++) {
+ my $bubble = substr($currentquest, $ans, 1);
+ if ($bubble =~ /\d/) {
+ $record{"scantron.$ansnum.answer"} = $alphabet[$bubble];
+ } else {
+ $record{"scantron.$ansnum.answer"}=' ';
+ }
+ $ansnum++;
+ }
+
+ } elsif (!defined($currentquest)
+ || (&occurence_count($currentquest,$$scantron_config{'Qoff'}) == length($currentquest))
+ || (&occurence_count($currentquest, '\d') == 0)) {
+ for (my $ans = 0; $ans < $answers_needed; $ans++ ) {
+ $record{"scantron.$ansnum.answer"}='';
+ $ansnum++;
+
+ }
+ if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) {
+ push(@{$record{"scantron.missingerror"}},$questnum);
+ $ansnum += $answers_needed;
+ }
+
+ } else {
+ $currentquest = &digits_to_letters($currentquest);
+ for (my $ans =0; $ans < $answers_needed; $ans++) {
+ $record{"scantron.$ansnum.answer"} = substr($currentquest, $ans, 1);
+ $ansnum++;
+ }
+ }
+ } else {
+
+ # Otherwise there's a positional notation;
+ # each bubble line requires Qlength items, and there are filled in
+ # bubbles for each case where there 'Qon' characters.
+ #
+
+ my @array=split($$scantron_config{'Qon'},$currentquest,-1);
+
+ # If the split only giveas us one element.. the full length of the
+ # answser string, no bubbles are filled in:
+
+ if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
+ for (my $ans = 0; $ans < $answers_needed; $ans++ ) {
+ $record{"scantron.$ansnum.answer"}='';
+ $ansnum++;
+
+ }
+ if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) {
+ push(@{$record{"scantron.missingerror"}},$questnum);
+ }
+ } elsif (scalar(@array) lt 2) {
+
+ my $location = length($array[0]);
+ my $line_num = $location / $$scantron_config{'Qlength'};
+ my $bubble = $alphabet[$location % $$scantron_config{'Qlength'}];
+
+ for (my $ans = 0; $ans < $answers_needed; $ans++) {
+ if ($ans eq $line_num) {
+ $record{"scantron.$ansnum.answer"} = $bubble;
+ } else {
+ $record{"scantron.$ansnum.answer"} = ' ';
+ }
+ $ansnum++;
+ }
+ }
+ # If there's more than one instance of a bubble character
+ # That's a double bubble; with positional notation we can
+ # record all the bubbles filled in as well as the
+ # fact this response consists of multiple bubbles.
+ #
+ else {
+ push(@{$record{'scantron.doubleerror'}},$questnum);
+
+ my $first_answer = $ansnum;
+ for (my $ans =0; $ans < $answers_needed; $ans++) {
+ my $item = $first_answer+$ans;
+ $record{"scantron.$item.answer"} = '';
+ }
+
+ my @ans=@array;
+ my $i=0;
+ my $increment = 0;
+ while ($#ans) {
+ $i+=length($ans[0]) + $increment;
+ my $line = int($i/$$scantron_config{'Qlength'} + $first_answer);
+ my $bubble = $i%$$scantron_config{'Qlength'};
+ $record{"scantron.$line.answer"}.=$alphabet[$bubble];
+ shift(@ans);
+ $increment = 1;
+ }
+ $ansnum += $answers_needed;
+ }
+ }
+ }
+ $record{'scantron.maxquest'}=$questnum;
+ return \%record;
+}
+
+=pod
+
+=item scantron_add_delay
+
+ Adds an error message that occurred during the grading phase to a
+ queue of messages to be shown after grading pass is complete
+
+ Arguments:
+ $delayqueue - arrary ref of hash ref of error messages
+ $scanline - the scanline that caused the error
+ $errormesage - the error message
+ $errorcode - a numeric code for the error
+
+ Side Effects:
+ updates the $delayqueue to have a new hash ref of the error
+
+=cut
+
+sub scantron_add_delay {
+ my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
+ push(@$delayqueue,
+ {'line' => $scanline, 'emsg' => $errormessage,
+ 'ecode' => $errorcode }
+ );
+}
+
+=pod
+
+=item scantron_find_student
+
+ Finds the username for the current scanline
+
+ Arguments:
+ $scantron_record - hash result from scantron_parse_scanline
+ $scan_data - hash of correction information
+ (see &scantron_getfile() form more information)
+ $idmap - hash from &username_to_idmap()
+ $line - number of current scanline
+
+ Returns:
+ Either 'username:domain' or undef if unknown
+
+=cut
+
+sub scantron_find_student {
+ my ($scantron_record,$scan_data,$idmap,$line)=@_;
+ my $scanID=$$scantron_record{'scantron.ID'};
+ if ($scanID =~ /^\s*$/) {
+ return &scan_data($scan_data,"$line.user");
+ }
+ foreach my $id (keys(%$idmap)) {
+ if (lc($id) eq lc($scanID)) {
+ return $$idmap{$id};
+ }
+ }
+ return undef;
+}
+
+=pod
+
+=item scantron_filter
+
+ Filter sub for lonnavmaps, filters out hidden resources if ignore
+ hidden resources was selected
+
+=cut
+
+sub scantron_filter {
+ my ($curres)=@_;
+
+ if (ref($curres) && $curres->is_problem()) {
+ # if the user has asked to not have either hidden
+ # or 'randomout' controlled resources to be graded
+ # don't include them
+ if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
+ && $curres->randomout) {
+ return 0;
+ }
+ return 1;
+ }
+ return 0;
+}
+
+=pod
+
+=item scantron_process_corrections
+
+ Gets correction information out of submitted form data and corrects
+ the scanline
+
+=cut
+
+sub scantron_process_corrections {
+ my ($r) = @_;
+ my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+ my ($scanlines,$scan_data)=&scantron_getfile();
+ my $classlist=&Apache::loncoursedata::get_classlist();
+ my $which=$env{'form.scantron_line'};
+ my $line=&scantron_get_line($scanlines,$scan_data,$which);
+ my ($skip,$err,$errmsg);
+ if ($env{'form.scantron_skip_record'}) {
+ $skip=1;
+ } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
+ my $newstudent=$env{'form.scantron_username'}.':'.
+ $env{'form.scantron_domain'};
+ my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
+ ($line,$err,$errmsg)=
+ &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
+ 'ID',{'newid'=>$newid,
+ 'username'=>$env{'form.scantron_username'},
+ 'domain'=>$env{'form.scantron_domain'}});
+ } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
+ my $resolution=$env{'form.scantron_CODE_resolution'};
+ my $newCODE;
+ my %args;
+ if ($resolution eq 'use_unfound') {
+ $newCODE='use_unfound';
+ } elsif ($resolution eq 'use_found') {
+ $newCODE=$env{'form.scantron_CODE_selectedvalue'};
+ } elsif ($resolution eq 'use_typed') {
+ $newCODE=$env{'form.scantron_CODE_newvalue'};
+ } elsif ($resolution =~ /^use_closest_(\d+)/) {
+ $newCODE=$env{"form.scantron_CODE_closest_$1"};
+ }
+ if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
+ $args{'CODE_ignore_dup'}=1;
+ }
+ $args{'CODE'}=$newCODE;
+ ($line,$err,$errmsg)=
+ &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
+ 'CODE',\%args);
+ } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
+ foreach my $question (split(',',$env{'form.scantron_questions'})) {
+ ($line,$err,$errmsg)=
+ &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
+ $which,'answer',
+ { 'question'=>$question,
+ 'response'=>$env{"form.scantron_correct_Q_$question"}});
+ if ($err) { last; }
+ }
+ }
+ if ($err) {
+ $r->print("Unable to accept last correction, an error occurred :$errmsg: ");
+ } else {
+ &scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
+ &scantron_putfile($scanlines,$scan_data);
+ }
+}
+
+=pod
+
+=item reset_skipping_status
+
+ Forgets the current set of remember skipped scanlines (and thus
+ reverts back to considering all lines in the
+ scantron_skipped_ file)
+
+=cut
+
+sub reset_skipping_status {
+ my ($scanlines,$scan_data)=&scantron_getfile();
+ &scan_data($scan_data,'remember_skipping',undef,1);
+ &scantron_putfile(undef,$scan_data);
+}
+
+=pod
+
+=item start_skipping
+
+ Marks a scanline to be skipped.
+
+=cut
+
+sub start_skipping {
+ my ($scan_data,$i)=@_;
+ my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
+ if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
+ $remembered{$i}=2;
+ } else {
+ $remembered{$i}=1;
+ }
+ &scan_data($scan_data,'remember_skipping',join(':',%remembered));
+}
+
+=pod
+
+=item should_be_skipped
+
+ Checks whether a scanline should be skipped.
+
+=cut
+
+sub should_be_skipped {
+ my ($scanlines,$scan_data,$i)=@_;
+ if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
+ # not redoing old skips
+ if ($scanlines->{'skipped'}[$i]) { return 1; }
+ return 0;
+ }
+ my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
+
+ if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
+ return 0;
+ }
+ return 1;
+}
+
+=pod
+
+=item remember_current_skipped
+
+ Discovers what scanlines are in the scantron_skipped_
+ file and remembers them into scan_data for later use.
+
+=cut
+
+sub remember_current_skipped {
+ my ($scanlines,$scan_data)=&scantron_getfile();
+ my %to_remember;
+ for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ if ($scanlines->{'skipped'}[$i]) {
+ $to_remember{$i}=1;
+ }
+ }
+
+ &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
+ &scantron_putfile(undef,$scan_data);
+}
+
+=pod
+
+=item check_for_error
+
+ Checks if there was an error when attempting to remove a specific
+ scantron_.. bubble sheet data file. Prints out an error if
+ something went wrong.
+
+=cut
+
+sub check_for_error {
+ my ($r,$result)=@_;
+ if ($result ne 'ok' && $result ne 'not_found' ) {
+ $r->print("An error occurred ($result) when trying to Remove the existing corrections.");
+ }
+}
+
+=pod
+
+=item scantron_warning_screen
+
+ Interstitial screen to make sure the operator has selected the
+ correct options before we start the validation phase.
+
+=cut
+
+sub scantron_warning_screen {
+ my ($button_text)=@_;
+ my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
+ my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+ my $CODElist;
+ if ($scantron_config{'CODElocation'} &&
+ $scantron_config{'CODEstart'} &&
+ $scantron_config{'CODElength'}) {
+ $CODElist=$env{'form.scantron_CODElist'};
+ if ($env{'form.scantron_CODElist'} eq '') { $CODElist='None '; }
+ $CODElist=
+ 'List of CODES to validate against: '.
+ $env{'form.scantron_CODElist'}.'
+Please double check the information
+ below before clicking on '$button_text'
+
+
+Sequence to be Graded: $title Data File that will be used: $env{'form.scantron_selectfile'}
+ If this information is correct, please click on '$button_text'.
+ If something is incorrect, please click the 'Grading Menu' button to start over.
+
+You have forgetten to specify some information. Please go Back and try again.
");
+ if ( $env{'form.selectpage'} eq '') {
+ $r->print('You have not selected a Sequence to grade
');
+ }
+ if ( $env{'form.scantron_selectfile'} eq '') {
+ $r->print('You have not selected a file that contains the student\'s response data.
');
+ }
+ if ( $env{'form.scantron_format'} eq '') {
+ $r->print('You have not selected a the format of the student\'s response data.
');
+ }
+ } else {
+ my $warning=&scantron_warning_screen('Grading: Validate Records');
+ $r->print(<
+ Gathering necessary info.
");$r->rflush();
+ #get the student pick code ready
+ $r->print(&Apache::loncommon::studentbrowser_javascript());
+ my $max_bubble=&scantron_get_maxbubble();
+ my $result=&scantron_form_start($max_bubble).$default_form_data;
+ $r->print($result);
+
+ my @validate_phases=( 'sequence',
+ 'ID',
+ 'CODE',
+ 'doublebubble',
+ 'missingbubbles');
+ if (!$env{'form.validatepass'}) {
+ $env{'form.validatepass'} = 0;
+ }
+ my $currentphase=$env{'form.validatepass'};
+
+
+ my $stop=0;
+ while (!$stop && $currentphase < scalar(@validate_phases)) {
+ $r->print(" Validating ".$validate_phases[$currentphase]."
");
+ $r->rflush();
+ my $which="scantron_validate_".$validate_phases[$currentphase];
+ {
+ no strict 'refs';
+ ($stop,$currentphase)=&$which($r,$currentphase);
+ }
+ }
+ if (!$stop) {
+ my $warning=&scantron_warning_screen('Start Grading');
+ $r->print(<Or click the 'Grading Menu' button to start over.
");
+ } else {
+ $r->print(' is never removed
+
+
+=cut
+
+sub scantron_remove_file {
+ my ($which)=@_;
+ my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $file='scantron_';
+ if ($which eq 'corrected' || $which eq 'skipped') {
+ $file.=$which.'_';
+ } else {
+ return 'refused';
+ }
+ $file.=$env{'form.scantron_selectfile'};
+ return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
+}
+
+
+=pod
+
+=item scantron_remove_scan_data
+
+ Removes all scan_data correction for the requested bubble sheet
+ data file. (In the case that both the are doing skipped records we need
+ to remember the old skipped lines for the time being so that element
+ persists for a while.)
+
+=cut
+
+sub scantron_remove_scan_data {
+ my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
+ my @todelete;
+ my $filename=$env{'form.scantron_selectfile'};
+ foreach my $key (@keys) {
+ if ($key=~/^\Q$filename\E_/) {
+ if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
+ $key=~/remember_skipping/) {
+ next;
+ }
+ push(@todelete,$key);
+ }
+ }
+ my $result;
+ if (@todelete) {
+ $result=&Apache::lonnet::del('nohist_scantrondata',\@todelete,$cdom,$cname);
+ }
+ return $result;
+}
+
+
+=pod
+
+=item scantron_getfile
+
+ Fetches the requested bubble sheet data file (all 3 versions), and
+ the scan_data hash
+
+ Arguments:
+ None
+
+ Returns:
+ 2 hash references
+
+ - first one has
+ orig -
+ corrected -
+ skipped - each of which points to an array ref of the specified
+ file broken up into individual lines
+ count - number of scanlines
+
+ - second is the scan_data hash possible keys are
+ ($number refers to scanline numbered $number and thus the key affects
+ only that scanline
+ $bubline refers to the specific bubble line element and the aspects
+ refers to that specific bubble line element)
+
+ $number.user - username:domain to use
+ $number.CODE_ignore_dup
+ - ignore the duplicate CODE error
+ $number.useCODE
+ - use the CODE in the scanline as is
+ $number.no_bubble.$bubline
+ - it is valid that there is no bubbled in bubble
+ at $number $bubline
+ remember_skipping
+ - a frozen hash containing keys of $number and values
+ of either
+ 1 - we are on a 'do skipped records pass' and plan
+ on processing this line
+ 2 - we are on a 'do skipped records pass' and this
+ scanline has been marked to skip yet again
+
+=cut
+
+sub scantron_getfile {
+ #FIXME really would prefer a scantron directory
+ my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $lines;
+ $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
+ 'scantron_orig_'.$env{'form.scantron_selectfile'});
+ my %scanlines;
+ $scanlines{'orig'}=[(split("\n",$lines,-1))];
+ my $temp=$scanlines{'orig'};
+ $scanlines{'count'}=$#$temp;
+
+ $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
+ 'scantron_corrected_'.$env{'form.scantron_selectfile'});
+ if ($lines eq '-1') {
+ $scanlines{'corrected'}=[];
+ } else {
+ $scanlines{'corrected'}=[(split("\n",$lines,-1))];
+ }
+ $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
+ 'scantron_skipped_'.$env{'form.scantron_selectfile'});
+ if ($lines eq '-1') {
+ $scanlines{'skipped'}=[];
+ } else {
+ $scanlines{'skipped'}=[(split("\n",$lines,-1))];
+ }
+ my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
+ if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
+ my %scan_data = @tmp;
+ return (\%scanlines,\%scan_data);
+}
+
+=pod
+
+=item lonnet_putfile
+
+ Wrapper routine to call &Apache::lonnet::finishuserfileupload
+
+ Arguments:
+ $contents - data to store
+ $filename - filename to store $contents into
+
+ Returns:
+ result value from &Apache::lonnet::finishuserfileupload
+
+=cut
+
+sub lonnet_putfile {
+ my ($contents,$filename)=@_;
+ my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ $env{'form.sillywaytopassafilearound'}=$contents;
+ &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
+
+}
+
+=pod
+
+=item scantron_putfile
+
+ Stores the current version of the bubble sheet data files, and the
+ scan_data hash. (Does not modify the original version only the
+ corrected and skipped versions.
+
+ Arguments:
+ $scanlines - hash ref that looks like the first return value from
+ &scantron_getfile()
+ $scan_data - hash ref that looks like the second return value from
+ &scantron_getfile()
+
+=cut
+
+sub scantron_putfile {
+ my ($scanlines,$scan_data) = @_;
+ #FIXME really would prefer a scantron directory
+ my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ if ($scanlines) {
+ my $prefix='scantron_';
+# no need to update orig, shouldn't change
+# &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
+# $env{'form.scantron_selectfile'});
+ &lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
+ $prefix.'corrected_'.
+ $env{'form.scantron_selectfile'});
+ &lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
+ $prefix.'skipped_'.
+ $env{'form.scantron_selectfile'});
+ }
+ &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
+}
+
+=pod
+
+=item scantron_get_line
+
+ Returns the correct version of the scanline
+
+ Arguments:
+ $scanlines - hash ref that looks like the first return value from
+ &scantron_getfile()
+ $scan_data - hash ref that looks like the second return value from
+ &scantron_getfile()
+ $i - number of the requested line (starts at 0)
+
+ Returns:
+ A scanline, (either the original or the corrected one if it
+ exists), or undef if the requested scanline should be
+ skipped. (Either because it's an skipped scanline, or it's an
+ unskipped scanline and we are not doing a 'do skipped scanlines'
+ pass.
+
+=cut
+
+sub scantron_get_line {
+ my ($scanlines,$scan_data,$i)=@_;
+ if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
+ #if ($scanlines->{'skipped'}[$i]) { return undef; }
+ if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
+ return $scanlines->{'orig'}[$i];
+}
+
+=pod
+
+=item scantron_todo_count
+
+ Counts the number of scanlines that need processing.
+
+ Arguments:
+ $scanlines - hash ref that looks like the first return value from
+ &scantron_getfile()
+ $scan_data - hash ref that looks like the second return value from
+ &scantron_getfile()
+
+ Returns:
+ $count - number of scanlines to process
+
+=cut
+
+sub get_todo_count {
+ my ($scanlines,$scan_data)=@_;
+ my $count=0;
+ for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ if ($line=~/^[\s\cz]*$/) { next; }
+ $count++;
+ }
+ return $count;
+}
+
+=pod
+
+=item scantron_put_line
+
+ Updates the 'corrected' or 'skipped' versions of the bubble sheet
+ data file.
+
+ Arguments:
+ $scanlines - hash ref that looks like the first return value from
+ &scantron_getfile()
+ $scan_data - hash ref that looks like the second return value from
+ &scantron_getfile()
+ $i - line number to update
+ $newline - contents of the updated scanline
+ $skip - if true make the line for skipping and update the
+ 'skipped' file
+
+=cut
+
+sub scantron_put_line {
+ my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
+ if ($skip) {
+ $scanlines->{'skipped'}[$i]=$newline;
+ &start_skipping($scan_data,$i);
+ return;
+ }
+ $scanlines->{'corrected'}[$i]=$newline;
+}
+
+=pod
+
+=item scantron_clear_skip
+
+ Remove a line from the 'skipped' file
+
+ Arguments:
+ $scanlines - hash ref that looks like the first return value from
+ &scantron_getfile()
+ $scan_data - hash ref that looks like the second return value from
+ &scantron_getfile()
+ $i - line number to update
+
+=cut
+
+sub scantron_clear_skip {
+ my ($scanlines,$scan_data,$i)=@_;
+ if (exists($scanlines->{'skipped'}[$i])) {
+ undef($scanlines->{'skipped'}[$i]);
+ return 1;
+ }
+ return 0;
+}
+
+=pod
+
+=item scantron_filter_not_exam
+
+ Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
+ filter out resources that are not marked as 'exam' mode
+
+=cut
+
+sub scantron_filter_not_exam {
+ my ($curres)=@_;
+
+ if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
+ # if the user has asked to not have either hidden
+ # or 'randomout' controlled resources to be graded
+ # don't include them
+ if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
+ && $curres->randomout) {
+ return 0;
+ }
+ return 1;
+ }
+ return 0;
+}
+
+=pod
+
+=item scantron_validate_sequence
+
+ Validates the selected sequence, checking for resource that are
+ not set to exam mode.
+
+=cut
+
+sub scantron_validate_sequence {
+ my ($r,$currentphase) = @_;
+
+ my $navmap=Apache::lonnavmaps::navmap->new();
+ my (undef,undef,$sequence)=
+ &Apache::lonnet::decode_symb($env{'form.selectpage'});
+
+ my $map=$navmap->getResourceByUrl($sequence);
+
+ $r->print('".&mt('Some resources in the sequence currently are not set to exam mode. Grading these resources currently may not work correctly.')."
");
+ return (1,$currentphase);
+ }
+ }
+
+ return (0,$currentphase+1);
+}
+
+=pod
+
+=item scantron_validate_ID
+
+ Validates all scanlines in the selected file to not have any
+ invalid or underspecified student IDs
+
+=cut
+
+sub scantron_validate_ID {
+ my ($r,$currentphase) = @_;
+
+ #get student info
+ my $classlist=&Apache::loncoursedata::get_classlist();
+ my %idmap=&username_to_idmap($classlist);
+
+ #get scantron line setup
+ my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+ my ($scanlines,$scan_data)=&scantron_getfile();
+
+ &scantron_get_maxbubble(); # parse needs the bubble_lines.. array.
+
+ my %found=('ids'=>{},'usernames'=>{});
+ for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ if ($line=~/^[\s\cz]*$/) { next; }
+ my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ $scan_data);
+ my $id=$$scan_record{'scantron.ID'};
+ my $found;
+ foreach my $checkid (keys(%idmap)) {
+ if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
+ }
+ if ($found) {
+ my $username=$idmap{$found};
+ if ($found{'ids'}{$found}) {
+ &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ $line,'duplicateID',$found);
+ return(1,$currentphase);
+ } elsif ($found{'usernames'}{$username}) {
+ &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ $line,'duplicateID',$username);
+ return(1,$currentphase);
+ }
+ #FIXME store away line we previously saw the ID on to use above
+ $found{'ids'}{$found}++;
+ $found{'usernames'}{$username}++;
+ } else {
+ if ($id =~ /^\s*$/) {
+ my $username=&scan_data($scan_data,"$i.user");
+ if (defined($username) && $found{'usernames'}{$username}) {
+ &scantron_get_correction($r,$i,$scan_record,
+ \%scantron_config,
+ $line,'duplicateID',$username);
+ return(1,$currentphase);
+ } elsif (!defined($username)) {
+ &scantron_get_correction($r,$i,$scan_record,
+ \%scantron_config,
+ $line,'incorrectID');
+ return(1,$currentphase);
+ }
+ $found{'usernames'}{$username}++;
+ } else {
+ &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ $line,'incorrectID');
+ return(1,$currentphase);
+ }
+ }
+ }
+
+ return (0,$currentphase+1);
+}
+
+=pod
+
+=item scantron_get_correction
+
+ Builds the interface screen to interact with the operator to fix a
+ specific error condition in a specific scanline
+
+ Arguments:
+ $r - Apache request object
+ $i - number of the current scanline
+ $scan_record - hash ref as returned from &scantron_parse_scanline()
+ $scan_config - hash ref as returned from &get_scantron_config()
+ $line - full contents of the current scanline
+ $error - error condition, valid values are
+ 'incorrectCODE', 'duplicateCODE',
+ 'doublebubble', 'missingbubble',
+ 'duplicateID', 'incorrectID'
+ $arg - extra information needed
+ For errors:
+ - duplicateID - paper number that this studentID was seen before on
+ - duplicateCODE - array ref of the paper numbers this CODE was
+ seen on before
+ - incorrectCODE - current incorrect CODE
+ - doublebubble - array ref of the bubble lines that have double
+ bubble errors
+ - missingbubble - array ref of the bubble lines that have missing
+ bubble errors
+
+=cut
+
+sub scantron_get_correction {
+ my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
+
+#FIXME in the case of a duplicated ID the previous line, probably need
+#to show both the current line and the previous one and allow skipping
+#the previous one or the current one
+
+ $r->print("An error was detected ($error) ");
+ if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
+ $r->print(" for PaperID ".
+ $$scan_record{'scantron.PaperID'}." \n");
+ } else {
+ $r->print(" in scanline $i
".
+ $line." \n");
+ }
+ my $message="The ID on the form is ".
+ $$scan_record{'scantron.ID'}."
";
+
+ $r->print('How should I handle this?
");
+ #FIXME it would be nice if this sent back the user ID and
+ #could do partial userID matches
+ $r->print(&Apache::loncommon::selectstudent_link('scantronupload',
+ 'scantron_username','scantron_domain'));
+ $r->print(": ');
+ } elsif ($error =~ /CODE$/) {
+ if ($error eq 'incorrectCODE') {
+ $r->print("The encoded CODE is not in the list of possible CODEs
\n");
+ } elsif ($error eq 'duplicateCODE') {
+ $r->print("The encoded CODE has also been used by a previous paper ".join(', ',@{$arg}).", and CODEs are supposed to be unique
\n");
+ }
+ $r->print("The CODE on the form is '".
+ $$scan_record{'scantron.CODE'}."'
How should I handle this? ".$testcode." ".$$scan_record{'scantron.CODE'}."
+function change_radio(field) {
+ var slct=document.scantronupload.scantron_CODE_resolution;
+ var i;
+ for (i=0;i
+ENDSCRIPT
+ my $href="/adm/pickcode?".
+ "form=".&escape("scantronupload").
+ "&scantron_format=".&escape($env{'form.scantron_format'}).
+ "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
+ "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
+ "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
+ if ($env{'form.scantron_CODElist'} =~ /\S/) {
+ $r->print("Select a CODE from the list of all CODEs and use it.There have been multiple bubbles scanned for a some question(s)
\n");
+ $r->print('Please indicate which bubble should be used for grading
");
+ foreach my $question (@{$arg}) {
+ my $selected = &get_response_bubbles($scan_record, $question);
+ my @select_array = split(/:/,$selected);
+ &scantron_bubble_selector($r,$scan_config,$question,
+ @select_array);
+ }
+ } elsif ($error eq 'missingbubble') {
+ $r->print("There have been no bubbles scanned for some question(s)
\n");
+ $r->print($message);
+ $r->print("Please indicate which bubble should be used for grading
");
+ $r->print("Some questions have no scanned bubbles\n");
+ $r->print('{'count'};$i++) {
+ my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ if ($line=~/^[\s\cz]*$/) { next; }
+ my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ $scan_data);
+ my $CODE=$$scan_record{'scantron.CODE'};
+ my $error=0;
+ if (!&Apache::lonnet::validCODE($CODE)) {
+ &scantron_get_correction($r,$i,$scan_record,
+ \%scantron_config,
+ $line,'incorrectCODE',\%allcodes);
+ return(1,$currentphase);
+ }
+ if (%allcodes && !exists($allcodes{$CODE})
+ && !$$scan_record{'scantron.useCODE'}) {
+ &scantron_get_correction($r,$i,$scan_record,
+ \%scantron_config,
+ $line,'incorrectCODE',\%allcodes);
+ return(1,$currentphase);
+ }
+ if (exists($usedCODEs{$CODE})
+ && $env{'form.scantron_CODEunique'} eq 'yes'
+ && !$$scan_record{'scantron.CODE_ignore_dup'}) {
+ &scantron_get_correction($r,$i,$scan_record,
+ \%scantron_config,
+ $line,'duplicateCODE',$usedCODEs{$CODE});
+ return(1,$currentphase);
+ }
+ push (@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
+ }
+ return (0,$currentphase+1);
+}
+
+=pod
+
+=item scantron_validate_doublebubble
+
+ Validates all scanlines in the selected file to not have any
+ bubble lines with multiple bubbles marked.
+
+=cut
+
+sub scantron_validate_doublebubble {
+ my ($r,$currentphase) = @_;
+ #get student info
+ my $classlist=&Apache::loncoursedata::get_classlist();
+ my %idmap=&username_to_idmap($classlist);
+
+ #get scantron line setup
+ my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+ my ($scanlines,$scan_data)=&scantron_getfile();
+
+ &scantron_get_maxbubble(); # parse needs the bubble line array.
+
+ for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ if ($line=~/^[\s\cz]*$/) { next; }
+ my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ $scan_data);
+ if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
+ &scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
+ 'doublebubble',
+ $$scan_record{'scantron.doubleerror'});
+ return (1,$currentphase);
+ }
+ return (0,$currentphase+1);
+}
+
+=pod
+
+=item scantron_get_maxbubble
+
+ Returns the maximum number of bubble lines that are expected to
+ occur. Does this by walking the selected sequence rendering the
+ resource and then checking &Apache::lonxml::get_problem_counter()
+ for what the current value of the problem counter is.
+
+ Caches the results to $env{'form.scantron_maxbubble'},
+ $env{'form.scantron.bubble_lines.n'} and
+ $env{'form.scantron.first_bubble_line.n'}
+ which are the total number of bubble, lines, the number of bubble
+ lines for reponse n and number of the first bubble line for response n.
+
+=cut
+
+sub scantron_get_maxbubble {
+ if (defined($env{'form.scantron_maxbubble'}) &&
+ $env{'form.scantron_maxbubble'}) {
+ &restore_bubble_lines();
+ return $env{'form.scantron_maxbubble'};
+ }
+
+ my (undef, undef, $sequence) =
+ &Apache::lonnet::decode_symb($env{'form.selectpage'});
+
+ my $navmap=Apache::lonnavmaps::navmap->new();
+ my $map=$navmap->getResourceByUrl($sequence);
+ my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+
+ &Apache::lonxml::clear_problem_counter();
+
+ my $uname = $env{'form.student'};
+ my $udom = $env{'form.userdom'};
+ my $cid = $env{'request.course.id'};
+ my $total_lines = 0;
+ %bubble_lines_per_response = ();
+ %first_bubble_line = ();
+
+
+ my $response_number = 0;
+ my $bubble_line = 0;
+ foreach my $resource (@resources) {
+ my $symb = $resource->symb();
+ &Apache::lonxml::clear_bubble_lines_for_part();
+ my $result=&Apache::lonnet::ssi($resource->src(),
+ ('symb' => $resource->symb()),
+ ('grade_target' => 'analyze'),
+ ('grade_courseid' => $cid),
+ ('grade_domain' => $udom),
+ ('grade_username' => $uname));
+ my (undef, $an) =
+ split(/_HASH_REF__/,$result, 2);
+
+ my %analysis = &Apache::lonnet::str2hash($an);
+
+
+
+ foreach my $part_id (@{$analysis{'parts'}}) {
+
+
+ my $lines = $analysis{"$part_id.bubble_lines"};;
+
+ # TODO - make this a persistent hash not an array.
+
+
+ $first_bubble_line{$response_number} = $bubble_line;
+ $bubble_lines_per_response{$response_number} = $lines;
+ $response_number++;
+
+ $bubble_line += $lines;
+ $total_lines += $lines;
+ }
+
+ }
+ &Apache::lonnet::delenv('scantron\.');
+
+ &save_bubble_lines();
+ $env{'form.scantron_maxbubble'} =
+ $total_lines;
+ return $env{'form.scantron_maxbubble'};
+}
+
+=pod
+
+=item scantron_validate_missingbubbles
+
+ Validates all scanlines in the selected file to not have any
+ answers that don't have bubbles that have not been verified
+ to be bubble free.
+
+=cut
+
+sub scantron_validate_missingbubbles {
+ my ($r,$currentphase) = @_;
+ #get student info
+ my $classlist=&Apache::loncoursedata::get_classlist();
+ my %idmap=&username_to_idmap($classlist);
+
+ #get scantron line setup
+ my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+ my ($scanlines,$scan_data)=&scantron_getfile();
+ my $max_bubble=&scantron_get_maxbubble();
+ if (!$max_bubble) { $max_bubble=2**31; }
+ for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ if ($line=~/^[\s\cz]*$/) { next; }
+ my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ $scan_data);
+ if (!defined($$scan_record{'scantron.missingerror'})) { next; }
+ my @to_correct;
+
+ # Probably here's where the error is...
+
+ foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
+ if ($missing > $max_bubble) { next; }
+ push(@to_correct,$missing);
+ }
+ if (@to_correct) {
+ &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ $line,'missingbubble',\@to_correct);
+ return (1,$currentphase);
+ }
+
+ }
+ return (0,$currentphase+1);
+}
+
+=pod
+
+=item scantron_process_students
+
+ Routine that does the actual grading of the bubble sheet information.
+
+ The parsed scanline hash is added to %env
+
+ Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
+ foreach resource , with the form data of
+
+ 'submitted' =>'scantron'
+ 'grade_target' =>'grade',
+ 'grade_username'=> username of student
+ 'grade_domain' => domain of student
+ 'grade_courseid'=> of course
+ 'grade_symb' => symb of resource to grade
+
+ This triggers a grading pass. The problem grading code takes care
+ of converting the bubbled letter information (now in %env) into a
+ valid submission.
+
+=cut
+
+sub scantron_process_students {
+ my ($r) = @_;
+ my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
+ my ($symb)=&get_symb($r);
+ if (!$symb) {return '';}
+ my $default_form_data=&defaultFormData($symb);
+
+ my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+ my ($scanlines,$scan_data)=&scantron_getfile();
+ my $classlist=&Apache::loncoursedata::get_classlist();
+ my %idmap=&username_to_idmap($classlist);
+ my $navmap=Apache::lonnavmaps::navmap->new();
+ my $map=$navmap->getResourceByUrl($sequence);
+ my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+# $r->print("geto ".scalar(@resources)."
+ took $lasttime
");
+
+ $r->print("");
+ $r->print(&show_grading_menu_form($symb));
+ return '';
+}
+
+=pod
+
+=item scantron_upload_scantron_data
+
+ Creates the screen for adding a new bubble sheet data file to a course.
+
+=cut
+
+sub scantron_upload_scantron_data {
+ my ($r)=@_;
+ $r->print(&Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'}));
+ my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
+ 'domainid',
+ 'coursename');
+ my $domsel=&Apache::loncommon::select_dom_form($env{'request.role.domain'},
+ 'domainid');
+ my $default_form_data=&defaultFormData(&get_symb($r,1));
+ $r->print(<
+ function checkUpload(formname) {
+ if (formname.upfile.value == "") {
+ alert("Please use the browse button to select a file from your local directory.");
+ return false;
+ }
+ formname.submit();
+ }
+
+
+
+UPLOAD
+ return '';
+}
+
+=pod
+
+=item scantron_upload_scantron_data_save
+
+ Adds a provided bubble information data file to the course if user
+ has the correct privileges to do so.
+
+=cut
+
+sub scantron_upload_scantron_data_save {
+ my($r)=@_;
+ my ($symb)=&get_symb($r,1);
+ my $doanotherupload=
+ 'Error: The file you attempted to upload, ".&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"')." , contained no information. Please check that you entered the correct filename.");
+ } else {
+ my $result=&Apache::lonnet::finishuserfileupload($env{'form.courseid'},$env{'form.domainid'},'upfile',$fname);
+ if ($result =~ m|^/uploaded/|) {
+ $r->print("Success: Successfully uploaded ".(length($env{'form.upfile'})-1)." bytes of data into location ".$result." ");
+ } else {
+ $r->print("Error: An error (".$result.") occurred when attempting to upload the file, ".&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"')." ");
+ }
+ }
+ if ($symb) {
+ $r->print(&scantron_selectphase($r,$uploadedfile));
+ } else {
+ $r->print($doanotherupload);
+ }
+ return '';
+}
+
+=pod
+
+=item valid_file
+
+ Validates that the requested bubble data file exists in the course.
+
+=cut
+
+sub valid_file {
+ my ($requested_file)=@_;
+ foreach my $filename (sort(&scantron_filenames())) {
+ if ($requested_file eq $filename) { return 1; }
+ }
+ return 0;
+}
+
+=pod
+
+=item scantron_download_scantron_data
+
+ Shows a list of the three internal files (original, corrected,
+ skipped) for a specific bubble sheet data file that exists in the
+ course.
+
+=cut
+
+sub scantron_download_scantron_data {
+ my ($r)=@_;
+ my $default_form_data=&defaultFormData(&get_symb($r,1));
+ my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $file=$env{'form.scantron_selectfile'};
+ if (! &valid_file($file)) {
+ $r->print(<
+ The requested file name was invalid.
+
+ERROR
+ $r->print(&show_grading_menu_form(&get_symb($r,1)));
+ return;
+ }
+ my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
+ my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
+ my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
+ &Apache::lonnet::allowuploaded('/adm/grades',$orig);
+ &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
+ &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
+ $r->print(<
+ Original file as uploaded by the scantron office.
+
+
+ Corrections , a file of corrected records that were used in grading.
+
+
+ Skipped , a file of records that were skipped.
+
+DOWNLOAD
+ $r->print(&show_grading_menu_form(&get_symb($r,1)));
+ return '';
+}
+
+=pod
+
+=back
+
+=cut
+
+#-------- end of section for handling grading scantron forms -------
+#
+#-------------------------------------------------------------------
+
+#-------------------------- Menu interface -------------------------
+#
+#--- Show a Grading Menu button - Calls the next routine ---
+sub show_grading_menu_form {
+ my ($symb)=@_;
+ my $result.=''.&mt('Please select a grading task').' ';
+ $Str .= '\n";
+ $request->print(<
+ function checkChoice(formname,val,cmdx) {
+ if (val <= 2) {
+ var cmd = radioSelection(formname.radioChoice);
+ var cmdsave = cmd;
+ } else {
+ cmd = cmdx;
+ cmdsave = 'submission';
+ }
+ formname.command.value = cmd;
+ if (val < 5) formname.submit();
+ if (val == 5) {
+ if (!checkReceiptNo(formname,'notOK')) {
+ return false;
+ } else {
+ formname.submit();
+ }
+ }
+ }
+
+ function checkReceiptNo(formname,nospace) {
+ var receiptNo = formname.receipt.value;
+ var checkOpt = false;
+ if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
+ if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
+ if (checkOpt) {
+ alert("Please enter a receipt number given by a student in the receipt box.");
+ formname.receipt.value = "";
+ formname.receipt.focus();
+ return false;
+ }
+ return true;
+ }
+
+GRADINGMENUJS
+ &commonJSfunctions($request);
+ return $Str;
+}
+
+
+#--- Displays the submissions first page -------
+sub submit_options {
+ my ($request) = @_;
+ my ($symb)=&get_symb($request);
+ if (!$symb) {return '';}
+ my $probTitle = &Apache::lonnet::gettitle($symb);
+
+ $request->print(<
+ function checkChoice(formname,val,cmdx) {
+ if (val <= 2) {
+ var cmd = radioSelection(formname.radioChoice);
+ var cmdsave = cmd;
+ } else {
+ cmd = cmdx;
+ cmdsave = 'submission';
+ }
+ formname.command.value = cmd;
+ formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
+ ":saveSub="+pullDownSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
+ if (val < 5) formname.submit();
+ if (val == 5) {
+ if (!checkReceiptNo(formname,'notOK')) { return false;}
+ formname.submit();
+ }
+ if (val < 7) formname.submit();
+ }
+
+ function checkReceiptNo(formname,nospace) {
+ var receiptNo = formname.receipt.value;
+ var checkOpt = false;
+ if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
+ if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
+ if (checkOpt) {
+ alert("Please enter a receipt number given by a student in the receipt box.");
+ formname.receipt.value = "";
+ formname.receipt.focus();
+ return false;
+ }
+ return true;
+ }
+
+GRADINGMENUJS
+ &commonJSfunctions($request);
+ my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
+ my $result;
+ my (undef,$sections) = &getclasslist('all','0');
+ my $savedState = &savedState();
+ my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
+ my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
+ my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
+ my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
+
+ $result.='';
+ return $result;
+}
+
+sub reset_perm {
+ undef(%perm);
+}
+
+sub init_perm {
+ &reset_perm();
+ foreach my $test_perm ('vgr','mgr','opa') {
+
+ my $scope = $env{'request.course.id'};
+ if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
+
+ $scope .= '/'.$env{'request.course.sec'};
+ if ( $perm{$test_perm}=
+ &Apache::lonnet::allowed($test_perm,$scope)) {
+ $perm{$test_perm.'_section'}=$env{'request.course.sec'};
+ } else {
+ delete($perm{$test_perm});
+ }
+ }
+ }
+}
+
+sub gather_clicker_ids {
+ my %clicker_ids;
+
+ my $classlist = &Apache::loncoursedata::get_classlist();
+
+ # Set up a couple variables.
+ my $username_idx = &Apache::loncoursedata::CL_SNAME();
+ my $domain_idx = &Apache::loncoursedata::CL_SDOM();
+ my $status_idx = &Apache::loncoursedata::CL_STATUS();
+
+ foreach my $student (keys(%$classlist)) {
+ if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
+ my $username = $classlist->{$student}->[$username_idx];
+ my $domain = $classlist->{$student}->[$domain_idx];
+ my $clickers =
+ (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
+ foreach my $id (split(/\,/,$clickers)) {
+ $id=~s/^[\#0]+//;
+ $id=~s/[\-\:]//g;
+ if (exists($clicker_ids{$id})) {
+ $clicker_ids{$id}.=','.$username.':'.$domain;
+ } else {
+ $clicker_ids{$id}=$username.':'.$domain;
+ }
+ }
+ }
+ return %clicker_ids;
+}
+
+sub gather_adv_clicker_ids {
+ my %clicker_ids;
+ my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+ my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
+ foreach my $element (sort(keys(%coursepersonnel))) {
+ foreach my $person (split(/\,/,$coursepersonnel{$element})) {
+ my ($puname,$pudom)=split(/\:/,$person);
+ my $clickers =
+ (&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
+ foreach my $id (split(/\,/,$clickers)) {
+ $id=~s/^[\#0]+//;
+ $id=~s/[\-\:]//g;
+ if (exists($clicker_ids{$id})) {
+ $clicker_ids{$id}.=','.$puname.':'.$pudom;
+ } else {
+ $clicker_ids{$id}=$puname.':'.$pudom;
+ }
+ }
+ }
+ }
+ return %clicker_ids;
+}
+
+sub clicker_grading_parameters {
+ return ('gradingmechanism' => 'scalar',
+ 'upfiletype' => 'scalar',
+ 'specificid' => 'scalar',
+ 'pcorrect' => 'scalar',
+ 'pincorrect' => 'scalar');
+}
+
+sub process_clicker {
+ my ($r)=@_;
+ my ($symb)=&get_symb($r);
+ if (!$symb) {return '';}
+ my $result=&checkforfile_js();
+ $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
+ my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
+ $result.=$table;
+ $result.=''."\n";
+ $result.=''."\n";
+ $result.=' '.&mt('Specify a file containing the clicker information for this resource').
+ '. '."\n";
+# Attempt to restore parameters from last session, set defaults if not present
+ my %Saveable_Parameters=&clicker_grading_parameters();
+ &Apache::loncommon::restore_course_settings('grades_clicker',
+ \%Saveable_Parameters);
+ if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
+ if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
+ if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
+ if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
+
+ my %checked;
+ foreach my $gradingmechanism ('attendance','personnel','specific') {
+ if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
+ $checked{$gradingmechanism}="checked='checked'";
+ }
+ }
+
+ my $upload=&mt("Upload File");
+ my $type=&mt("Type");
+ my $attendance=&mt("Award points just for participation");
+ my $personnel=&mt("Correctness determined from response by course personnel");
+ my $specific=&mt("Correctness determined from response with clicker ID(s)");
+ my $pcorrect=&mt("Percentage points for correct solution");
+ my $pincorrect=&mt("Percentage points for incorrect solution");
+ my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
+ ('iclicker' => 'i>clicker',
+ 'interwrite' => 'interwrite PRS'));
+ $symb = &Apache::lonenc::check_encrypt($symb);
+ $result.=<
+function sanitycheck() {
+// Accept only integer percentages
+ document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
+ document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
+// Find out grading choice
+ for (i=0; i
+
+ENDUPFORM
+ $result.='
'."\n".
+ '
'.&mt('You need to specify a clicker ID for the correct answer').' ';
+ return $result.&show_grading_menu_form($symb);
+ }
+ my %clicker_ids=&gather_clicker_ids();
+ my %correct_ids;
+ if ($env{'form.gradingmechanism'} eq 'personnel') {
+ %correct_ids=&gather_adv_clicker_ids();
+ }
+ if ($env{'form.gradingmechanism'} eq 'specific') {
+ foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
+ $correct_id=~tr/a-z/A-Z/;
+ $correct_id=~s/\s//gs;
+ $correct_id=~s/^[\#0]+//;
+ $correct_id=~s/[\-\:]//g;
+ if ($correct_id) {
+ $correct_ids{$correct_id}='specified';
+ }
+ }
+ }
+ if ($env{'form.gradingmechanism'} eq 'attendance') {
+ $result.=&mt('Score based on attendance only');
} else {
- $request->print("Unknown action: $command:");
+ my $number=0;
+ $result.=''.&mt('Correctness determined by the following IDs').' ';
+ foreach my $id (sort(keys(%correct_ids))) {
+ $result.=''.$id.' - ';
+ if ($correct_ids{$id} eq 'specified') {
+ $result.=&mt('specified');
+ } else {
+ my ($uname,$udom)=split(/\:/,$correct_ids{$id});
+ $result.=&Apache::loncommon::plainname($uname,$udom);
+ }
+ $number++;
+ }
+ $result.="
\n";
+ if ($number==0) {
+ $result.=''.&mt('No IDs found to determine correct answer').' ';
+ return $result.&show_grading_menu_form($symb);
+ }
}
- }
- &send_footer($request);
- return OK;
+ if (length($env{'form.upfile'}) < 2) {
+ $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
+ '',
+ ' ',
+ ''.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').' ');
+ return $result.&show_grading_menu_form($symb);
+ }
+
+# Were able to get all the info needed, now analyze the file
+
+ $result.=&Apache::loncommon::studentbrowser_javascript();
+ $symb = &Apache::lonenc::check_encrypt($symb);
+ my $heading=&mt('Scanning clicker file');
+ $result.=(<
+
+$heading
+ENDHEADER
+# Get correct result
+# FIXME: Possibly need delimiter other than ":"
+ my @correct=();
+ my $gradingmechanism=$env{'form.gradingmechanism'};
+ my $number=$env{'form.number'};
+ if ($gradingmechanism ne 'attendance') {
+ foreach my $key (keys(%env)) {
+ if ($key=~/^form\.correct\:/) {
+ my @input=split(/\,/,$env{$key});
+ for (my $i=0;$i<=$#input;$i++) {
+ if (($correct[$i]) && ($input[$i]) &&
+ ($correct[$i] ne $input[$i])) {
+ $result.=''.
+ &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
+ $env{'form.question:'.$i},$correct[$i],$input[$i]).' ';
+ } elsif ($input[$i]) {
+ $correct[$i]=$input[$i];
+ }
+ }
+ }
+ }
+ for (my $i=0;$i<$number;$i++) {
+ if (!$correct[$i]) {
+ $result.=''.
+ &mt('No correct result given for question "[_1]"!',
+ $env{'form.question:'.$i}).' ';
+ }
+ }
+ $result.='Failed to save student $username:$domain. Message when trying to save was ($returncode) ";
+ } else {
+ $storecount++;
+ }
+ }
+ }
+# We are done
+ $result.='
'."\n".
+ '
Not authorized: '.$token.' ');
+ }
+ } else {
+ $request->print('Not a valid DocID: '.$token.' ');
+ }
+ } else {
+ $request->print(&Apache::lonxml::tokeninputfield());
+ }
+ }
+ } else {
+ &init_perm();
+ if ($command eq 'submission' && $perm{'vgr'}) {
+ ($env{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
+ } elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
+ &pickStudentPage($request);
+ } elsif ($command eq 'displayPage' && $perm{'vgr'}) {
+ &displayPage($request);
+ } elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
+ &updateGradeByPage($request);
+ } elsif ($command eq 'processGroup' && $perm{'vgr'}) {
+ &processGroup($request);
+ } elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
+ $request->print(&grading_menu($request));
+ } elsif ($command eq 'submit_options' && $perm{'vgr'}) {
+ $request->print(&submit_options($request));
+ } elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
+ $request->print(&viewgrades($request));
+ } elsif ($command eq 'handgrade' && $perm{'mgr'}) {
+ $request->print(&processHandGrade($request));
+ } elsif ($command eq 'editgrades' && $perm{'mgr'}) {
+ $request->print(&editgrades($request));
+ } elsif ($command eq 'verify' && $perm{'vgr'}) {
+ $request->print(&verifyreceipt($request));
+ } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
+ $request->print(&process_clicker($request));
+ } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
+ $request->print(&process_clicker_file($request));
+ } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
+ $request->print(&assign_clicker_grades($request));
+ } elsif ($command eq 'csvform' && $perm{'mgr'}) {
+ $request->print(&upcsvScores_form($request));
+ } elsif ($command eq 'csvupload' && $perm{'mgr'}) {
+ $request->print(&csvupload($request));
+ } elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
+ $request->print(&csvuploadmap($request));
+ } elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
+ if ($env{'form.associate'} ne 'Reverse Association') {
+ $request->print(&csvuploadoptions($request));
+ } else {
+ if ( $env{'form.upfile_associate'} ne 'reverse' ) {
+ $env{'form.upfile_associate'} = 'reverse';
+ } else {
+ $env{'form.upfile_associate'} = 'forward';
+ }
+ $request->print(&csvuploadmap($request));
+ }
+ } elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
+ $request->print(&csvuploadassign($request));
+ } elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
+ $request->print(&scantron_selectphase($request));
+ } elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
+ $request->print(&scantron_do_warning($request));
+ } elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
+ $request->print(&scantron_validate_file($request));
+ } elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
+ $request->print(&scantron_process_students($request));
+ } elsif ($command eq 'scantronupload' &&
+ (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
+ &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
+ $request->print(&scantron_upload_scantron_data($request));
+ } elsif ($command eq 'scantronupload_save' &&
+ (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
+ &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
+ $request->print(&scantron_upload_scantron_data_save($request));
+ } elsif ($command eq 'scantron_download' &&
+ &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
+ $request->print(&scantron_download_scantron_data($request));
+ } elsif ($command) {
+ $request->print("Access Denied ($command)");
+ }
+ }
+ $request->print(&Apache::loncommon::end_page());
+ &reset_caches();
+ return '';
}
1;