--- loncom/homework/grades.pm 2008/06/25 11:59:59 1.525 +++ loncom/homework/grades.pm 2008/12/24 12:33:28 1.528.2.5 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # The LON-CAPA Grading handler # -# $Id: grades.pm,v 1.525 2008/06/25 11:59:59 raeburn Exp $ +# $Id: grades.pm,v 1.528.2.5 2008/12/24 12:33:28 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -1681,7 +1681,7 @@ sub gradeBox { my $radio.=''."\n"; # display radio buttons in a nice table 10 across while ($thisweight<=$wgt) { - $radio.= '\n"; @@ -2796,8 +2796,10 @@ sub handback_files { $newflg.'_'.$part_resp.'_returndoc'.$file_counter, $save_file_name); if ($result !~ m|^/uploaded/|) { - $request->print('An error occurred ('.$result. - ') while trying to upload '.$newflg.'_'.$part_resp.'_returndoc'.$file_counter.'
'); + $request->print('
'. + &mt('An error occurred ([_1]) while trying to upload [_2].', + $result,$newflg.'_'.$part_resp.'_returndoc'.$file_counter). + ''); } else { # mark the file as read only my @files = ($save_file_name); @@ -4509,12 +4511,12 @@ sub updateGradeByPage { my ($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'}.''); + $request->print(''.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).''); $request->print(&show_grading_menu_form($env{'form.symb'})); return; } my $result='

 '.$env{'form.title'}.'

'; - $result.='

 Student: '.&nameUserString(undef,$env{'form.fullname'},$uname,$udom). + $result.='

 '.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom). '

'."\n"; $request->print($result); @@ -4523,7 +4525,7 @@ sub updateGradeByPage { 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.')'); + $request->print(''.&mt('Unable to grade requested sequence ([_1]).',$resUrl).''); my ($symb)=&get_symb($request); $request->print(&show_grading_menu_form($symb)); return; @@ -4555,8 +4557,8 @@ sub updateGradeByPage { &Apache::loncommon::start_data_table_row(). ''; + : '
('.&mt('[quant,_1, part]',scalar(@{$parts})) + .')').''; $studentTable.=''; my %newrecord=(); @@ -4600,10 +4602,10 @@ sub updateGradeByPage { } my $display_part=&get_display_part($partid,$curRes->symb()); my $oldstatus = $env{'form.solved'.$question.'_'.$partid}; - $displayPts[0].=' Part: '.$display_part.' = '. + $displayPts[0].=' '.&mt('Part').': '.$display_part.' = '. (($oldstatus eq 'excused') ? 'excused' : $oldpts). ' 
'; - $displayPts[1].=' Part: '.$display_part.' = '. + $displayPts[1].=' '.&mt('Part').': '.$display_part.' = '. (($score eq 'excused') ? 'excused' : $newpts). ' 
'; $question++; @@ -4652,9 +4654,9 @@ sub updateGradeByPage { $studentTable.=&Apache::loncommon::end_data_table(); $studentTable.=&show_grading_menu_form($env{'form.symb'}); - my $grademsg=($changeflag == 0 ? 'No score was changed or updated.' : - 'The scores were changed for '. - $changeflag.' problem'.($changeflag == 1 ? '.' : 's.')); + my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') : + &mt('The scores were changed for [quant,_1,problem].', + $changeflag)); $request->print($grademsg.$studentTable); return ''; @@ -4985,11 +4987,11 @@ sub scantron_CODElist { =cut sub scantron_CODEunique { - my $result=' + my $result=' - + '; @@ -5149,7 +5151,7 @@ sub scantron_selectphase { &Apache::lonpickcode::code_list($r,2); - $r>print('
'. + $r->print('
'. $default_form_data."\n". &Apache::loncommon::start_data_table('LC_scantron_action')."\n". &Apache::loncommon::start_data_table_header_row()."\n". @@ -7331,35 +7333,84 @@ sub scantron_get_maxbubble { my $response_number = 0; my $bubble_line = 0; foreach my $resource (@resources) { - my $symb = $resource->symb(); + my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,$udom); + if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) { + foreach my $part_id (@{$parts}) { + + my $lines; + + # TODO - make this a persistent hash not an array. + + # optionresponse, matchresponse and rankresponse type items + # render as separate sub-questions in exam mode. + if (($analysis->{$part_id.'.type'} eq 'optionresponse') || + ($analysis->{$part_id.'.type'} eq 'matchresponse') || + ($analysis->{$part_id.'.type'} eq 'rankresponse')) { + my ($numbub,$numshown); + if ($analysis->{$part_id.'.type'} eq 'optionresponse') { + if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') { + $numbub = scalar(@{$analysis->{$part_id.'.options'}}); + } + } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') { + if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') { + $numbub = scalar(@{$analysis->{$part_id.'.items'}}); + } + } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') { + if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') { + $numbub = scalar(@{$analysis->{$part_id.'.foils'}}); + } + } + if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') { + $numshown = scalar(@{$analysis->{$part_id.'.shown'}}); + } + my $bubbles_per_line = 10; + my $inner_bubble_lines = int($numbub/$bubbles_per_line); + if (($numbub % $bubbles_per_line) != 0) { + $inner_bubble_lines++; + } + for (my $i=0; $i<$numshown; $i++) { + $subdivided_bubble_lines{$response_number} .= + $inner_bubble_lines.','; + } + $subdivided_bubble_lines{$response_number} =~ s/,$//; + $lines = $numshown * $inner_bubble_lines; + } else { + $lines = $analysis->{"$part_id.bubble_lines"}; + } - my (@parts,@allparts,@possible_parts); + $first_bubble_line{$response_number} = $bubble_line; + $bubble_lines_per_response{$response_number} = $lines; + $responsetype_per_response{$response_number} = + $analysis->{$part_id.'.type'}; + $response_number++; - # Need to retrieve part IDs and response IDs because essayresponse, - # reactionresponse and organicresponse items are not included in - # $analysis{'parts'} from lonnet::ssi. - if (ref($resource->parts()) eq 'ARRAY') { - foreach my $part (@{$resource->parts()}) { - if (!&Apache::loncommon::check_if_partid_hidden($part,$symb,$udom,$uname)) { - my @resp_ids = $resource->responseIds($part); - foreach my $id (@resp_ids) { - my $part_id = $part.'.'.$id; - push(@possible_parts,$part_id); - } - } - } + $bubble_line += $lines; + $total_lines += $lines; + } } + } + &Apache::lonnet::delenv('scantron\.'); + + &save_bubble_lines(); + $env{'form.scantron_maxbubble'} = + $total_lines; + return $env{'form.scantron_maxbubble'}; +} +sub scantron_partids_tograde { + my ($resource,$cid,$uname,$udom) = @_; + my (%analysis,@parts); + + if (ref($resource)) { + my $symb = $resource->symb(); my $result=&ssi_with_retries($resource->src(), $ssi_retries, ('symb' => $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); + my (undef, $an) = split(/_HASH_REF__/,$result, 2); + %analysis = &Apache::lonnet::str2hash($an); if (ref($analysis{'parts'}) eq 'ARRAY') { foreach my $part (@{$analysis{'parts'}}) { @@ -7369,79 +7420,8 @@ sub scantron_get_maxbubble { } } } - # Add part_ids for any essayresponse, reactionresponse or - # organicresponse items. - foreach my $part_id (@possible_parts) { - if (grep(/^\Q$part_id\E$/,@parts)) { - push(@allparts,$part_id); - } else { - if (($analysis{$part_id.'.type'} eq 'essayresponse') || - ($analysis{$part_id.'.type'} eq 'reactionresponse') || - ($analysis{$part_id.'.type'} eq 'organicresponse')) { - push(@allparts,$part_id); - } - } - } - - foreach my $part_id (@allparts) { - my $lines; - - # TODO - make this a persistent hash not an array. - - # optionresponse, matchresponse and rankresponse type items - # render as separate sub-questions in exam mode. - if (($analysis{$part_id.'.type'} eq 'optionresponse') || - ($analysis{$part_id.'.type'} eq 'matchresponse') || - ($analysis{$part_id.'.type'} eq 'rankresponse')) { - my ($numbub,$numshown); - if ($analysis{$part_id.'.type'} eq 'optionresponse') { - if (ref($analysis{$part_id.'.options'}) eq 'ARRAY') { - $numbub = scalar(@{$analysis{$part_id.'.options'}}); - } - } elsif ($analysis{$part_id.'.type'} eq 'matchresponse') { - if (ref($analysis{$part_id.'.items'}) eq 'ARRAY') { - $numbub = scalar(@{$analysis{$part_id.'.items'}}); - } - } elsif ($analysis{$part_id.'.type'} eq 'rankresponse') { - if (ref($analysis{$part_id.'.foils'}) eq 'ARRAY') { - $numbub = scalar(@{$analysis{$part_id.'.foils'}}); - } - } - if (ref($analysis{$part_id.'.shown'}) eq 'ARRAY') { - $numshown = scalar(@{$analysis{$part_id.'.shown'}}); - } - my $bubbles_per_line = 10; - my $inner_bubble_lines = int($numbub/$bubbles_per_line); - if (($numbub % $bubbles_per_line) != 0) { - $inner_bubble_lines++; - } - for (my $i=0; $i<$numshown; $i++) { - $subdivided_bubble_lines{$response_number} .= - $inner_bubble_lines.','; - } - $subdivided_bubble_lines{$response_number} =~ s/,$//; - $lines = $numshown * $inner_bubble_lines; - } else { - $lines = $analysis{"$part_id.bubble_lines"}; - } - - $first_bubble_line{$response_number} = $bubble_line; - $bubble_lines_per_response{$response_number} = $lines; - $responsetype_per_response{$response_number} = - $analysis{$part_id.'.type'}; - $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'}; + return (\%analysis,\@parts); } =pod @@ -7548,6 +7528,14 @@ sub scantron_process_students { my $navmap=Apache::lonnavmaps::navmap->new(); my $map=$navmap->getResourceByUrl($sequence); my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0); + + my ($uname,$udom,%partids_by_symb); + foreach my $resource (@resources) { + my $ressymb = $resource->symb(); + my ($analysis,$parts) = + &scantron_partids_tograde($resource,$env{'request.course.id'},$uname,$udom); + $partids_by_symb{$ressymb} = $parts; + } # $r->print("geto ".scalar(@resources)."
"); my $result= < @@ -7557,7 +7545,7 @@ SCANTRONFORM $r->print($result); my @delayqueue; - my %completedstudents; + my (%completedstudents,,%scandata); my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam')); my $count=&get_todo_count($scanlines,$scan_data); @@ -7566,9 +7554,10 @@ SCANTRONFORM 'inline',undef,'scantronupload'); &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state, 'Processing first student'); + $r->print('
'); my $start=&Time::HiRes::time(); my $i=-1; - my ($uname,$udom,$started); + my $started; &scantron_get_maxbubble(); # Need the bubble lines array to parse. @@ -7584,6 +7573,9 @@ SCANTRONFORM return ''; # Dunno why the other returns return '' rather than just returning. } + my %lettdig = &letter_to_digits(); + my $numletts = scalar(keys(%lettdig)); + while ($i<$scanlines->{'count'}) { ($uname,$udom)=('',''); $i++; @@ -7615,36 +7607,80 @@ SCANTRONFORM if (&scantron_clear_skip($scanlines,$scan_data,$i)) { &scantron_putfile($scanlines,$scan_data); } - - my $i=0; - foreach my $resource (@resources) { - $i++; - my %form=('submitted' =>'scantron', - 'grade_target' =>'grade', - 'grade_username'=>$uname, - 'grade_domain' =>$udom, - 'grade_courseid'=>$env{'request.course.id'}, - 'grade_symb' =>$resource->symb()); - if (exists($scan_record->{'scantron.CODE'}) - && - &Apache::lonnet::validCODE($scan_record->{'scantron.CODE'})) { - $form{'CODE'}=$scan_record->{'scantron.CODE'}; - } else { - $form{'CODE'}=''; - } - my $result=&ssi_with_retries($resource->src(), $ssi_retries, %form); - if ($ssi_error) { - $ssi_error = 0; # So end of handler error message does not trigger. - $r->print(""); - &ssi_print_error($r); - $r->print(&show_grading_menu_form($symb)); - &Apache::lonnet::remove_lock($lock); - return ''; # Why return ''? Beats me. - } - if (&Apache::loncommon::connection_aborted($r)) { last; } - } + my $scancode; + if ((exists($scan_record->{'scantron.CODE'})) && + (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) { + $scancode = $scan_record->{'scantron.CODE'}; + } else { + $scancode = ''; + } + + if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode, + @resources) eq 'ssi_error') { + $ssi_error = 0; # So end of handler error message does not trigger. + $r->print(""); + &ssi_print_error($r); + $r->print(&show_grading_menu_form($symb)); + &Apache::lonnet::remove_lock($lock); + return ''; # Why return ''? Beats me. + } + $completedstudents{$uname}={'line'=>$line}; + if ($env{'form.verifyrecord'}) { + my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'}; + my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos); + chomp($studentdata); + $studentdata =~ s/\r$//; + my $studentrecord = ''; + my $counter = -1; + foreach my $resource (@resources) { + ($counter,my $recording) = + &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'}, + $counter,$studentdata,\%partids_by_symb, + \%scantron_config,\%lettdig,$numletts); + $studentrecord .= $recording; + } + if ($studentrecord ne $studentdata) { + $counter = -1; + $studentrecord = ''; + foreach my $resource (@resources) { + ($counter,my $recording) = + &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'}, + $counter,$studentdata,\%partids_by_symb, + \%scantron_config,\%lettdig,$numletts); + $studentrecord .= $recording; + } + if ($studentrecord ne $studentdata) { + $r->print('

'); + if ($scancode eq '') { + $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2].', + $uname.':'.$udom,$scan_record->{'scantron.ID'})); + } else { + $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2] and CODE: [_3].', + $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode)); + } + $r->print('
'.&Apache::loncommon::start_data_table()."\n". + &Apache::loncommon::start_data_table_header_row()."\n". + '

'. + &Apache::loncommon::end_data_table_header_row()."\n". + &Apache::loncommon::start_data_table_row(). + ''. + ''. + &Apache::loncommon::end_data_table_row(). + &Apache::loncommon::start_data_table_row(). + ''. + ''."\n". + &Apache::loncommon::end_data_table_row(). + &Apache::loncommon::end_data_table().'

'); + } else { + $r->print('
'. + &mt('A second grading pass was needed for user: [_1] with ID: [_2], because a mismatch was seen on the first pass.',$uname.':'.$udom,$scan_record->{'scantron.ID'}).'
'. + &mt("As a consequence, this user's submission history records two tries."). + '
'); + } + } + } if (&Apache::loncommon::connection_aborted($r)) { last; } } continue { &Apache::lonxml::clear_problem_counter(); @@ -7660,6 +7696,23 @@ SCANTRONFORM return ''; } +sub grade_student_bubbles { + my ($r,$uname,$udom,$scan_record,$scancode,@resources) = @_; + foreach my $resource (@resources) { + my %form = ('submitted' => 'scantron', + 'grade_target' => 'grade', + 'grade_username'=> $uname, + 'grade_domain' => $udom, + 'grade_courseid'=> $env{'request.course.id'}, + 'grade_symb' => $resource->symb(), + 'code' => $scancode); + my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form); + return 'ssi_error' if ($ssi_error); + last if (&Apache::loncommon::connection_aborted($r)); + } + return; +} + =pod =item scantron_upload_scantron_data @@ -7848,18 +7901,7 @@ sub checkscantron_results { if (!$symb) {return '';} my $grading_menu_button=&show_grading_menu_form($symb); my $cid = $env{'request.course.id'}; - my %lettdig = ( - A => 1, - B => 2, - C => 3, - D => 4, - E => 5, - F => 6, - G => 7, - H => 8, - I => 9, - J => 0, - ); + my %lettdig = &letter_to_digits(); my $numletts = scalar(keys(%lettdig)); my $cnum = $env{'course.'.$cid.'.num'}; my $cdom = $env{'course.'.$cid.'.domain'}; @@ -7873,6 +7915,13 @@ sub checkscantron_results { my $navmap=Apache::lonnavmaps::navmap->new(); my $map=$navmap->getResourceByUrl($sequence); my @resources=$navmap->retrieveResources($map,undef,1,0); + my ($uname,$udom,%partids_by_symb); + foreach my $resource (@resources) { + my $ressymb = $resource->symb(); + my ($analysis,$parts) = + &scantron_partids_tograde($resource,$env{'request.course.id'},$uname,$udom); + $partids_by_symb{$ressymb} = $parts; + } my (%scandata,%lastname,%bylast); $r->print(' '."\n"); @@ -7926,126 +7975,12 @@ sub checkscantron_results { $scandata{$pid} =~ s/\r$//; ($username,$domain)=split(/:/,$uname); my $counter = -1; - my (%expected,%startpos); foreach my $resource (@resources) { - next if (!$resource->is_problem()); - my $symb = $resource->symb(); - my $partsref = $resource->parts(); - my @parts; - my @part_ids = (); - if (ref($partsref) eq 'ARRAY') { - @parts = @{$partsref}; - foreach my $part (@parts) { - my @resp_ids = $resource->responseIds($part); - foreach my $resp (@resp_ids) { - $counter ++; - my $part_id = $part.'.'.$resp; - $expected{$part_id} = 0; - push(@part_ids,$part_id); - if ($env{"form.scantron.sub_bubblelines.$counter"}) { - my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"}); - foreach my $item (@sub_lines) { - $expected{$part_id} += $item; - } - } else { - $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"}; - } - $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"}; - } - } - } - if ($symb) { - my %recorded; - my (%returnhash) = - &Apache::lonnet::restore($symb,$cid,$domain,$username); - if ($returnhash{'version'}) { - my %lasthash=(); - my $version; - for ($version=1;$version<=$returnhash{'version'};$version++) { - foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) { - $lasthash{$key}=$returnhash{$version.':'.$key}; - } - } - foreach my $key (keys(%lasthash)) { - if ($key =~ /\.scantron$/) { - my $value = &unescape($lasthash{$key}); - my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/); - if ($value eq '') { - for (my $i=0; $i<$expected{$part_id}; $i++) { - for (my $j=0; $j<$scantron_config{'length'}; $j++) { - $recorded{$part_id} .= $; - } - } - } else { - my @tocheck; - my @items = split(//,$value); - if (($scantron_config{'Qon'} eq 'letter') || - ($scantron_config{'Qon'} eq 'number')) { - if (@items < $expected{$part_id}) { - my $fragment = substr($scandata{$pid},$startpos{$part_id},$expected{$part_id}); - my @singles = split(//,$fragment); - foreach my $pos (@singles) { - if ($pos eq ' ') { - push(@tocheck,$pos); - } else { - my $next = shift(@items); - push(@tocheck,$next); - } - } - } else { - @tocheck = @items; - } - foreach my $letter (@tocheck) { - if ($scantron_config{'Qon'} eq 'letter') { - if ($letter !~ /^[A-J]$/) { - $letter = $scantron_config{'Qoff'}; - } - $recorded{$part_id} .= $letter; - } elsif ($scantron_config{'Qon'} eq 'number') { - my $digit; - if ($letter !~ /^[A-J]$/) { - $digit = $scantron_config{'Qoff'}; - } else { - $digit = $lettdig{$letter}; - } - $recorded{$part_id} .= $digit; - } - } - } else { - @tocheck = @items; - for (my $i=0; $i<$expected{$part_id}; $i++) { - my $curr_sub = shift(@tocheck); - my $digit; - if ($curr_sub =~ /^[A-J]$/) { - $digit = $lettdig{$curr_sub}-1; - } - if ($curr_sub eq 'J') { - $digit += scalar($numletts); - } - for (my $j=0; $j<$scantron_config{'Qlength'}; $j++) { - if ($j == $digit) { - $recorded{$part_id} .= $scantron_config{'Qon'}; - } else { - $recorded{$part_id} .= $scantron_config{'Qoff'}; - } - } - } - } - } - } - } - } - foreach my $part_id (@part_ids) { - if ($recorded{$part_id} eq '') { - for (my $i=0; $i<$expected{$part_id}; $i++) { - for (my $j=0; $j<$scantron_config{'Qlength'}; $j++) { - $recorded{$part_id} .= $scantron_config{'Qoff'}; - } - } - } - $record{$pid} .= $recorded{$part_id}; - } - } + ($counter,my $recording) = + &verify_scantron_grading($resource,$domain,$username,$cid,$counter, + $scandata{$pid},\%partids_by_symb, + \%scantron_config,\%lettdig,$numletts); + $record{$pid} .= $recording; } } &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); @@ -8107,6 +8042,138 @@ sub checkscantron_results { return; } +sub verify_scantron_grading { + my ($resource,$domain,$username,$cid,$counter,$scandata,$partids_by_symb, + $scantron_config,$lettdig,$numletts) = @_; + my ($record,%expected,%startpos); + return ($counter,$record) if (!ref($resource)); + return ($counter,$record) if (!$resource->is_problem()); + my $symb = $resource->symb(); + return ($counter,$record) if (ref($partids_by_symb) ne 'HASH'); + return ($counter,$record) if (ref($partids_by_symb->{$symb}) ne 'ARRAY'); + foreach my $part_id (@{$partids_by_symb->{$symb}}) { + $counter ++; + $expected{$part_id} = 0; + if ($env{"form.scantron.sub_bubblelines.$counter"}) { + my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"}); + foreach my $item (@sub_lines) { + $expected{$part_id} += $item; + } + } else { + $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"}; + } + $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"}; + } + if ($symb) { + my %recorded; + my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username); + if ($returnhash{'version'}) { + my %lasthash=(); + my $version; + for ($version=1;$version<=$returnhash{'version'};$version++) { + foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) { + $lasthash{$key}=$returnhash{$version.':'.$key}; + } + } + foreach my $key (keys(%lasthash)) { + if ($key =~ /\.scantron$/) { + my $value = &unescape($lasthash{$key}); + my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/); + if ($value eq '') { + for (my $i=0; $i<$expected{$part_id}; $i++) { + for (my $j=0; $j<$scantron_config->{'length'}; $j++) { + $recorded{$part_id} .= $scantron_config->{'Qoff'}; + } + } + } else { + my @tocheck; + my @items = split(//,$value); + if (($scantron_config->{'Qon'} eq 'letter') || + ($scantron_config->{'Qon'} eq 'number')) { + if (@items < $expected{$part_id}) { + my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id}); + my @singles = split(//,$fragment); + foreach my $pos (@singles) { + if ($pos eq ' ') { + push(@tocheck,$pos); + } else { + my $next = shift(@items); + push(@tocheck,$next); + } + } + } else { + @tocheck = @items; + } + foreach my $letter (@tocheck) { + if ($scantron_config->{'Qon'} eq 'letter') { + if ($letter !~ /^[A-J]$/) { + $letter = $scantron_config->{'Qoff'}; + } + $recorded{$part_id} .= $letter; + } elsif ($scantron_config->{'Qon'} eq 'number') { + my $digit; + if ($letter !~ /^[A-J]$/) { + $digit = $scantron_config->{'Qoff'}; + } else { + $digit = $lettdig->{$letter}; + } + $recorded{$part_id} .= $digit; + } + } + } else { + @tocheck = @items; + for (my $i=0; $i<$expected{$part_id}; $i++) { + my $curr_sub = shift(@tocheck); + my $digit; + if ($curr_sub =~ /^[A-J]$/) { + $digit = $lettdig->{$curr_sub}-1; + } + if ($curr_sub eq 'J') { + $digit += scalar($numletts); + } + for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) { + if ($j == $digit) { + $recorded{$part_id} .= $scantron_config->{'Qon'}; + } else { + $recorded{$part_id} .= $scantron_config->{'Qoff'}; + } + } + } + } + } + } + } + } + foreach my $part_id (@{$partids_by_symb->{$symb}}) { + if ($recorded{$part_id} eq '') { + for (my $i=0; $i<$expected{$part_id}; $i++) { + for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) { + $recorded{$part_id} .= $scantron_config->{'Qoff'}; + } + } + } + $record .= $recorded{$part_id}; + } + } + return ($counter,$record); +} + +sub letter_to_digits { + my %lettdig = ( + A => 1, + B => 2, + C => 3, + D => 4, + E => 5, + F => 6, + G => 7, + H => 8, + I => 9, + J => 0, + ); + return %lettdig; +} + =pod =back
'.$prob. (scalar(@{$parts}) == 1 ? '' - : '
('.&mt('[quant,_1, parts]',scalar(@{$parts})) - ).')		 '.$title.' '.&mt('Source').''.&mt('Bubbled responses').''.&mt('Bubble Sheet').''.$studentdata.'Stored submissions'.$studentrecord.'