--- loncom/homework/grades.pm 2007/08/18 00:57:25 1.429 +++ loncom/homework/grades.pm 2009/12/09 19:41:10 1.583 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # The LON-CAPA Grading handler # -# $Id: grades.pm,v 1.429 2007/08/18 00:57:25 banghart Exp $ +# $Id: grades.pm,v 1.583 2009/12/09 19:41:10 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -26,6 +26,8 @@ # http://www.lon-capa.org/ # + + package Apache::grades; use strict; use Apache::style; @@ -35,6 +37,7 @@ use Apache::loncommon; use Apache::lonhtmlcommon; use Apache::lonnavmaps; use Apache::lonhomework; +use Apache::lonpickcode; use Apache::loncoursedata; use Apache::lonmsg(); use Apache::Constants qw(:common); @@ -45,35 +48,71 @@ use LONCAPA; use POSIX qw(floor); + + my %perm=(); -# ----- These first few routines are general use routines.---- +# These variables are used to recover from ssi errors + +my $ssi_retries = 5; +my $ssi_error; +my $ssi_error_resource; +my $ssi_error_message; + + +sub ssi_with_retries { + my ($resource, $retries, %form) = @_; + my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form); + if ($response->is_error) { + $ssi_error = 1; + $ssi_error_resource = $resource; + $ssi_error_message = $response->code . " " . $response->message; + } + + return $content; + +} +# +# Prodcuces an ssi retry failure error message to the user: +# + +sub ssi_print_error { + my ($r) = @_; + my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk'); + $r->print(' +
+

'.&mt('An unrecoverable network error occurred:').'

+

+'.&mt('Unable to retrieve a resource from a server:').'
+'.&mt('Resource:').' '.$ssi_error_resource.'
+'.&mt('Error:').' '.$ssi_error_message.' +

+

'. +&mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'
'. +&mt('If the error persists, please contact the [_1] for assistance.',$helpurl). +'

'); + return; +} + # # --- Retrieve the parts from the metadata file.--- sub getpartlist { - my ($symb) = @_; - my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb); - my $partorder = &Apache::lonnet::metadata($url, 'partorder'); - my @parts; - if ($partorder) { - for my $part (split (/,/,$partorder)) { - if (!&Apache::loncommon::check_if_partid_hidden($part,$symb)) { - push(@parts, $part); - } - } - } else { - my $metadata = &Apache::lonnet::metadata($url, 'packages'); - foreach (split(/\,/,$metadata)) { - if ($_ =~ /^part_(.*)$/) { - if (!&Apache::loncommon::check_if_partid_hidden($1,$symb)) { - push(@parts, $1); - } - } - } + my ($symb,$errorref) = @_; + + my $navmap = Apache::lonnavmaps::navmap->new(); + unless (ref($navmap)) { + if (ref($errorref)) { + $$errorref = 'navmap'; + return; + } } + my $res = $navmap->getBySymb($symb); + my $partlist = $res->parts(); + my $url = $res->src(); + my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys')); + my @stores; - foreach my $part (@parts) { - my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys')); + foreach my $part (@{ $partlist }) { foreach my $key (@metakeys) { if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); } } @@ -101,7 +140,7 @@ sub get_symb { sub nameUserString { my ($type,$fullname,$uname,$udom) = @_; if ($type eq 'header') { - return ' Fullname (Username)'; + return ' '.&mt('Fullname').' ('.&mt('Username').')'; } else { return ' '.$fullname.' ('.$uname. ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')'; @@ -111,9 +150,15 @@ sub nameUserString { #--- Get the partlist and the response type for a given problem. --- #--- Indicate if a response type is coded handgraded or not. --- sub response_type { - my ($symb) = shift; + my ($symb,$response_error) = @_; my $navmap = Apache::lonnavmaps::navmap->new(); + unless (ref($navmap)) { + if (ref($response_error)) { + $$response_error = 1; + } + return; + } my $res = $navmap->getBySymb($symb); my $partlist = $res->parts(); my %vPart = @@ -150,7 +195,8 @@ sub get_display_part { my ($partID,$symb)=@_; my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb); if (defined($display) and $display ne '') { - $display.= " (id $partID)"; + $display.= ' (' + .&mt('Part ID: [_1]',$partID).')'; } else { $display=$partID; } @@ -160,17 +206,22 @@ sub get_display_part { #--- Show resource title #--- and parts and response type sub showResourceInfo { - my ($symb,$probTitle,$checkboxes) = @_; + my ($symb,$probTitle,$checkboxes,$res_error) = @_; my $col=3; if ($checkboxes) { $col=4; } my $result = '

'.&mt('Current Resource').': '.$probTitle.'

'."\n"; + my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error); + if (ref($res_error)) { + if ($$res_error) { + return; + } + } $result .=''; - my ($partlist,$handgrade,$responseType) = &response_type($symb); my %resptype = (); my $hdgrade='no'; my %partsseen; - foreach my $partID (sort keys(%$responseType)) { - foreach my $resID (sort keys(%{ $responseType->{$partID} })) { + foreach my $partID (sort(keys(%$responseType))) { + foreach my $resID (sort(keys(%{ $responseType->{$partID} }))) { my $handgrade=$$handgrade{$partID.'_'.$resID}; my $responsetype = $responseType->{$partID}->{$resID}; $hdgrade = $handgrade if ($handgrade eq 'yes'); @@ -184,32 +235,120 @@ sub showResourceInfo { $partsseen{$partID}=1; } my $display_part=&get_display_part($partID,$symb); - $result.=''. - ''; -# ''; + $result.=''. + ''; +# ''; } } $result.='
Part: '.$display_part.' '. - $resID.'Type: '.$responsetype.'
Handgrade: '.$handgrade.'
'.&mt('Part: [_1]',$display_part).''. + ' '.$resID.''.&mt('Type: [_1]',$responsetype).'
'.&mt('Handgrade: [_1]',$handgrade).'
'."\n"; return $result,$responseType,$hdgrade,$partlist,$handgrade; } +sub reset_caches { + &reset_analyze_cache(); + &reset_perm(); +} + +{ + my %analyze_cache; + my %analyze_cache_formkeys; + + sub reset_analyze_cache { + undef(%analyze_cache); + undef(%analyze_cache_formkeys); + } + + sub get_analyze { + my ($symb,$uname,$udom,$no_increment,$add_to_hash)=@_; + my $key = "$symb\0$uname\0$udom"; + if (exists($analyze_cache{$key})) { + my $getupdate = 0; + if (ref($add_to_hash) eq 'HASH') { + foreach my $item (keys(%{$add_to_hash})) { + if (ref($analyze_cache_formkeys{$key}) eq 'HASH') { + if (!exists($analyze_cache_formkeys{$key}{$item})) { + $getupdate = 1; + last; + } + } else { + $getupdate = 1; + } + } + } + if (!$getupdate) { + return $analyze_cache{$key}; + } + } + + my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb); + $url=&Apache::lonnet::clutter($url); + my %form = ('grade_target' => 'analyze', + 'grade_domain' => $udom, + 'grade_symb' => $symb, + 'grade_courseid' => $env{'request.course.id'}, + 'grade_username' => $uname, + 'grade_noincrement' => $no_increment); + if (ref($add_to_hash)) { + %form = (%form,%{$add_to_hash}); + } + my $subresult=&ssi_with_retries($url, $ssi_retries,%form); + (undef,$subresult)=split(/_HASH_REF__/,$subresult,2); + my %analyze=&Apache::lonnet::str2hash($subresult); + if (ref($add_to_hash) eq 'HASH') { + $analyze_cache_formkeys{$key} = $add_to_hash; + } else { + $analyze_cache_formkeys{$key} = {}; + } + return $analyze_cache{$key} = \%analyze; + } + + sub get_order { + my ($partid,$respid,$symb,$uname,$udom,$no_increment)=@_; + my $analyze = &get_analyze($symb,$uname,$udom,$no_increment); + return $analyze->{"$partid.$respid.shown"}; + } + + sub get_radiobutton_correct_foil { + my ($partid,$respid,$symb,$uname,$udom)=@_; + my $analyze = &get_analyze($symb,$uname,$udom); + my $foils = &get_order($partid,$respid,$symb,$uname,$udom); + if (ref($foils) eq 'ARRAY') { + foreach my $foil (@{$foils}) { + if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') { + return $foil; + } + } + } + } + + sub scantron_partids_tograde { + my ($resource,$cid,$uname,$udom,$check_for_randomlist) = @_; + my (%analysis,@parts); + if (ref($resource)) { + my $symb = $resource->symb(); + my $add_to_form; + if ($check_for_randomlist) { + $add_to_form = { 'check_parts_withrandomlist' => 1,}; + } + my $analyze = &get_analyze($symb,$uname,$udom,undef,$add_to_form); + if (ref($analyze) eq 'HASH') { + %analysis = %{$analyze}; + } + if (ref($analysis{'parts'}) eq 'ARRAY') { + foreach my $part (@{$analysis{'parts'}}) { + my ($id,$respid) = split(/\./,$part); + if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) { + push(@parts,$part); + } + } + } + } + return (\%analysis,\@parts); + } -sub get_order { - my ($partid,$respid,$symb,$uname,$udom)=@_; - my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb); - $url=&Apache::lonnet::clutter($url); - my $subresult=&Apache::lonnet::ssi($url, - ('grade_target' => 'analyze'), - ('grade_domain' => $udom), - ('grade_symb' => $symb), - ('grade_courseid' => - $env{'request.course.id'}), - ('grade_username' => $uname)); - (undef,$subresult)=split(/_HASH_REF__/,$subresult,2); - my %analyze=&Apache::lonnet::str2hash($subresult); - return ($analyze{"$partid.$respid.shown"}); } + #--- Clean response type for display #--- Currently filters option/rank/radiobutton/match/essay/Task # response types only. @@ -230,8 +369,8 @@ sub cleanRecord { $bottomrow.=''.$grayFont.$foil.' '; } return '
'. - ''.$toprow.''. - ''. + ''.$toprow.''. + ''. $grayFont.$bottomrow.''.'
Answer
'.$grayFont.'Option ID
'.&mt('Answer').'
'.$grayFont.&mt('Option ID').'
'; } elsif ($response eq 'match') { my %answer=&Apache::lonnet::str2hash($answer); @@ -250,31 +389,31 @@ sub cleanRecord { $bottomrow.=''.$grayFont.$foil.' '; } return '
'. - ''.$toprow.''. - ''. + ''.$toprow.''. + ''. $middlerow.''. - ''. + ''. $bottomrow.''.'
Answer
'.$grayFont.'Item ID
'.&mt('Answer').'
'.$grayFont.&mt('Item ID').'
'.$grayFont.'Option ID
'.$grayFont.&mt('Option ID').'
'; } elsif ($response eq 'radiobutton') { my %answer=&Apache::lonnet::str2hash($answer); my ($toprow,$bottomrow); - my $correct=($order->[0])+1; - for (my $i=1;$i<=$#$order;$i++) { - my $foil=$order->[$i]; + my $correct = + &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom); + foreach my $foil (@$order) { if (exists($answer{$foil})) { - if ($i == $correct) { - $toprow.='true'; + if ($foil eq $correct) { + $toprow.=''.&mt('true').''; } else { - $toprow.='true'; + $toprow.=''.&mt('true').''; } } else { - $toprow.='false'; + $toprow.=''.&mt('false').''; } $bottomrow.=''.$grayFont.$foil.' '; } return '
'. - ''.$toprow.''. - ''. + ''.$toprow.''. + ''. $grayFont.$bottomrow.''.'
Answer
'.$grayFont.'Option ID
'.&mt('Answer').'
'.$grayFont.&mt('Option ID').'
'; } elsif ($response eq 'essay') { if (! exists ($env{'form.'.$symb})) { @@ -326,7 +465,10 @@ sub cleanRecord { $result.=''; return $result; } - + } elsif ( $response =~ m/(?:numerical|formula)/) { + $answer = + &Apache::loncommon::format_previous_attempt_value('submission', + $answer); } return $answer; } @@ -370,8 +512,10 @@ COMMONJSFUNCTIONS #--- Dumps the class list with usernames,list of sections, #--- section, ids and fullnames for each user. sub getclasslist { - my ($getsec,$filterlist) = @_; + my ($getsec,$filterlist,$getgroup) = @_; my @getsec; + my @getgroup; + my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status')); if (!ref($getsec)) { if ($getsec ne '' && $getsec ne 'all') { @getsec=($getsec); @@ -380,10 +524,19 @@ sub getclasslist { @getsec=@{$getsec}; } if (grep(/^all$/,@getsec)) { undef(@getsec); } + if (!ref($getgroup)) { + if ($getgroup ne '' && $getgroup ne 'all') { + @getgroup=($getgroup); + } + } else { + @getgroup=@{$getgroup}; + } + if (grep(/^all$/,@getgroup)) { undef(@getgroup); } - my $classlist=&Apache::loncoursedata::get_classlist(); + my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist(); # Bail out if we were unable to get the classlist return if (! defined($classlist)); + &Apache::loncoursedata::get_group_memberships($classlist,$keylist); # my %sections; my %fullnames; @@ -400,18 +553,40 @@ sub getclasslist { $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()]; my $status = $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()]; + my $group = + $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()]; # filter students according to status selected - if ($filterlist && $env{'form.Status'} ne 'Any') { - if ($env{'form.Status'} ne $status) { - delete ($classlist->{$student}); + if ($filterlist && (!($stu_status =~ /Any/))) { + if (!($stu_status =~ $status)) { + delete($classlist->{$student}); next; } } + # filter students according to groups selected + my @stu_groups = split(/,/,$group); + if (@getgroup) { + my $exclude = 1; + foreach my $grp (@getgroup) { + foreach my $stu_group (@stu_groups) { + if ($stu_group eq $grp) { + $exclude = 0; + } + } + if (($grp eq 'none') && !$group) { + $exclude = 0; + } + } + if ($exclude) { + delete($classlist->{$student}); + } + } $section = ($section ne '' ? $section : 'none'); if (&canview($section)) { if (!@getsec || grep(/^\Q$section\E$/,@getsec)) { $sections{$section}++; - $fullnames{$student}=$fullname; + if ($classlist->{$student}) { + $fullnames{$student}=$fullname; + } } else { delete($classlist->{$student}); } @@ -484,6 +659,7 @@ sub student_gradeStatus { # Shows a student's view of problem and submission sub jscriptNform { my ($symb) = @_; + my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status')); my $jscript=' -
- $default_form_data - - - - File to upload: + + '.$default_form_data.' + + + + '.&mt('File to upload: [_1]','').'
- +
-UPLOAD +'); - $r->print(<print(' - - - - -SCANTRONFORM + '.&Apache::loncommon::end_data_table_row().' + '.&Apache::loncommon::end_data_table().' +'); } # Chunk of the form that prompts to view a scoring office file, # corrected file, skipped records in a file. - $r->print(< -
- - $default_form_data - - - - - - - - - - - -
-  Download a scoring office file -
Filename of scoring office file: $file_selector
- -
- -
- -SCANTRONFORM - - $r->print(< -$grading_menu_button -SCANTRONFORM - - return + $r->print(' +
+
+ '.$default_form_data.' + + '.&Apache::loncommon::start_data_table('LC_scantron_action').' + '.&Apache::loncommon::start_data_table_header_row().' + +  '.&mt('Download a scoring office file').' + + '.&Apache::loncommon::end_data_table_header_row().' + '.&Apache::loncommon::start_data_table_row().' + '.&mt('Filename of scoring office file: [_1]',$file_selector).' +
+ + '.&Apache::loncommon::end_data_table_row().' + '.&Apache::loncommon::end_data_table().' +
+
+'); + + &Apache::lonpickcode::code_list($r,2); + + $r->print('
'. + $default_form_data."\n". + &Apache::loncommon::start_data_table('LC_scantron_action')."\n". + &Apache::loncommon::start_data_table_header_row()."\n". + ' +  '.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n". + ''."\n". + &Apache::loncommon::end_data_table_header_row()."\n". + &Apache::loncommon::start_data_table_row()."\n". + ' '.&mt('Graded folder/sequence:').' '."\n". + ' '.$sequence_selector.' '. + &Apache::loncommon::end_data_table_row()."\n". + &Apache::loncommon::start_data_table_row()."\n". + ' '.&mt('Filename of scoring office file:').' '."\n". + ' '.$file_selector.' '."\n". + &Apache::loncommon::end_data_table_row()."\n". + &Apache::loncommon::start_data_table_row()."\n". + ' '.&mt('Format of data file:').' '."\n". + ' '.$format_selector.' '."\n". + &Apache::loncommon::end_data_table_row()."\n". + &Apache::loncommon::start_data_table_row()."\n". + ' '.&mt('Options').' '."\n". + ' '. + &Apache::loncommon::end_data_table_row()."\n". + &Apache::loncommon::start_data_table_row()."\n". + ''."\n". + ''."\n". + ''."\n". + ''."\n". + &Apache::loncommon::end_data_table_row()."\n". + &Apache::loncommon::end_data_table()."\n". + '

'); + $r->print($grading_menu_button); + return; } =pod @@ -4772,8 +5342,8 @@ SCANTRONFORM 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 + IDstart - column where the student/employee ID starts + IDlength - length of the student/employee ID info Qstart - column where the information from the bubbled 'questions' start Qlength - number of columns comprising a single bubble line from @@ -4799,10 +5369,10 @@ SCANTRONFORM sub get_scantron_config { my ($which) = @_; - my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab'); + my @lines = &get_scantronformat_file(); my %config; #FIXME probably should move to XML it has already gotten a bit much now - foreach my $line (<$fh>) { + foreach my $line (@lines) { my ($name,$descrip)=split(/:/,$line); if ($name ne $which ) { next; } chomp($line); @@ -4815,7 +5385,7 @@ sub get_scantron_config { $config{'IDstart'}=$config[5]; $config{'IDlength'}=$config[6]; $config{'Qstart'}=$config[7]; - $config{'Qlength'}=$config[8]; + $config{'Qlength'}=$config[8]; $config{'Qoff'}=$config[9]; $config{'Qon'}=$config[10]; $config{'PaperID'}=$config[11]; @@ -4833,7 +5403,7 @@ sub get_scantron_config { =item username_to_idmap - creates a hash keyed by student id with values of the corresponding + creates a hash keyed by student/employee ID with values of the corresponding student username:domain. Arguments: @@ -4872,7 +5442,7 @@ sub username_to_idmap { $whichline - line number of the passed in scanline $field - type of change to process (either - 'ID' -> correct the student ID number + 'ID' -> correct the student/employee ID 'CODE' -> correct the CODE 'answer' -> fixup the submitted answers) @@ -4889,6 +5459,8 @@ sub username_to_idmap { - 'answer' 'response' - new answer or 'none' if blank 'question' - the bubble line to change + 'questionnum' - the question identifier, + may include subquestion. Returns: $line - the modified scanline @@ -4901,7 +5473,6 @@ sub username_to_idmap { sub scantron_fixup_scanline { my ($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'); @@ -4938,7 +5509,7 @@ sub scantron_fixup_scanline { my $answer=${off}x$length; if ($args->{'response'} eq 'none') { &scan_data($scan_data, - "$whichline.no_bubble.".$args->{'question'},'1'); + "$whichline.no_bubble.".$args->{'questionnum'},'1'); } else { if ($on eq 'letter') { my @alphabet=('A'..'Z'); @@ -4950,7 +5521,7 @@ sub scantron_fixup_scanline { substr($answer,$args->{'response'},1)=$on; } &scan_data($scan_data, - "$whichline.no_bubble.".$args->{'question'},undef,'1'); + "$whichline.no_bubble.".$args->{'questionnum'},undef,'1'); } my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'}; substr($line,$where-1,$length)=$answer; @@ -4987,6 +5558,39 @@ sub scan_data { return $scan_data->{$filename.'_'.$key}; } +# ----- These first few routines are general use routines.---- + +# Return the number of occurences of a pattern in a string. + +sub occurence_count { + my ($string, $pattern) = @_; + + my @matches = ($string =~ /$pattern/g); + + return scalar(@matches); +} + + +# Take a string known to have digits and convert all the +# digits into letters in the range J,A..I. + +sub digits_to_letters { + my ($input) = @_; + + my @alphabet = ('J', 'A'..'I'); + + my @input = split(//, $input); + my $output =''; + for (my $i = 0; $i < scalar(@input); $i++) { + if ($input[$i] =~ /\d/) { + $output .= $alphabet[$input[$i]]; + } else { + $output .= $input[$i]; + } + } + return $output; +} + =pod =item scantron_parse_scanline @@ -5012,7 +5616,7 @@ sub scan_data { 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 + ID - student/employee ID PaperID - if used, the ID number printed on the sheet when the paper was scanned FirstName - first name from the sheet @@ -5020,13 +5624,18 @@ sub scan_data { if just_header was not true these key may also exist - missingerror - a list of bubbled line numbers that had a blank bubble - that is considered an error (if the operator had already - okayed a blank bubble line as really being blank then - that bubble line number won't appear here. - doubleerror - a list of bubbled line numbers that had more than one - bubble filled in and has not been corrected by the - operator + 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) @@ -5041,8 +5650,10 @@ sub scan_data { 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 $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'}; + my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos); # Answers my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # earlier stuff if (!($$scantron_config{'CODElocation'} eq 0 || $$scantron_config{'CODElocation'} eq 'none')) { @@ -5077,75 +5688,226 @@ sub scantron_parse_scanline { my @alphabet=('A'..'Z'); my $questnum=0; - while ($questions) { - $questnum++; - my $currentquest=substr($questions,0,$$scantron_config{'Qlength'}); - substr($questions,0,$$scantron_config{'Qlength'})=''; - if (length($currentquest) < $$scantron_config{'Qlength'}) { next; } - if ($$scantron_config{'Qon'} eq 'letter') { - if ($currentquest eq '?' - || $currentquest eq '*') { - push(@{$record{'scantron.doubleerror'}},$questnum); - $record{"scantron.$questnum.answer"}=''; - } elsif (!defined($currentquest) - || $currentquest eq $$scantron_config{'Qoff'} - || $currentquest !~ /^[A-Z]$/) { - $record{"scantron.$questnum.answer"}=''; - if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) { - push(@{$record{"scantron.missingerror"}},$questnum); - } - } else { - $record{"scantron.$questnum.answer"}=$currentquest; - } - } elsif ($$scantron_config{'Qon'} eq 'number') { - if ($currentquest eq '?' - || $currentquest eq '*') { - push(@{$record{'scantron.doubleerror'}},$questnum); - $record{"scantron.$questnum.answer"}=''; - } elsif (!defined($currentquest) - || $currentquest eq $$scantron_config{'Qoff'} - || $currentquest !~ /^\d$/) { - $record{"scantron.$questnum.answer"}=''; - if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) { - push(@{$record{"scantron.missingerror"}},$questnum); - } - } else { - # wrap zero back to J - if ($currentquest eq '0') { - $record{"scantron.$questnum.answer"}= - $alphabet[9]; - } else { - $record{"scantron.$questnum.answer"}= - $alphabet[$currentquest-1]; - } - } - } else { - my @array=split($$scantron_config{'Qon'},$currentquest,-1); - if (length($array[0]) eq $$scantron_config{'Qlength'}) { - $record{"scantron.$questnum.answer"}=''; - if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) { - push(@{$record{"scantron.missingerror"}},$questnum); - } - } else { - $record{"scantron.$questnum.answer"}= - $alphabet[length($array[0])]; - } - if (scalar(@array) gt 2) { - push(@{$record{'scantron.doubleerror'}},$questnum); - my @ans=@array; - my $i=length($ans[0]);shift(@ans); - while ($#ans) { - $i+=length($ans[0])+1; - $record{"scantron.$questnum.answer"}.=$alphabet[$i]; - shift(@ans); - } - } - } + 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 = ($$scantron_config{'Qlength'} * $answers_needed) + || 1; + $questnum++; + my $quest_id = $questnum; + my $currentquest = substr($questions,0,$answer_length); + $questions = substr($questions,$answer_length); + if (length($currentquest) < $answer_length) { next; } + + if ($subdivided_bubble_lines{$questnum-1} =~ /,/) { + my $subquestnum = 1; + my $subquestions = $currentquest; + my @subanswers_needed = + split(/,/,$subdivided_bubble_lines{$questnum-1}); + foreach my $subans (@subanswers_needed) { + my $subans_length = + ($$scantron_config{'Qlength'} * $subans) || 1; + my $currsubquest = substr($subquestions,0,$subans_length); + $subquestions = substr($subquestions,$subans_length); + $quest_id = "$questnum.$subquestnum"; + if (($$scantron_config{'Qon'} eq 'letter') || + ($$scantron_config{'Qon'} eq 'number')) { + $ansnum = &scantron_validator_lettnum($ansnum, + $questnum,$quest_id,$subans,$currsubquest,$whichline, + \@alphabet,\%record,$scantron_config,$scan_data); + } else { + $ansnum = &scantron_validator_positional($ansnum, + $questnum,$quest_id,$subans,$currsubquest,$whichline, \@alphabet,\%record,$scantron_config,$scan_data); + } + $subquestnum ++; + } + } else { + if (($$scantron_config{'Qon'} eq 'letter') || + ($$scantron_config{'Qon'} eq 'number')) { + $ansnum = &scantron_validator_lettnum($ansnum,$questnum, + $quest_id,$answers_needed,$currentquest,$whichline, + \@alphabet,\%record,$scantron_config,$scan_data); + } else { + $ansnum = &scantron_validator_positional($ansnum,$questnum, + $quest_id,$answers_needed,$currentquest,$whichline, + \@alphabet,\%record,$scantron_config,$scan_data); + } + } } $record{'scantron.maxquest'}=$questnum; return \%record; } +sub scantron_validator_lettnum { + my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline, + $alphabet,$record,$scantron_config,$scan_data) = @_; + + # Qon 'letter' implies for each slot in currquest 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. + # + # Qon 'number' implies each slot gives a digit that indexes the + # bubbles filled, or Qoff, or a non-number for unbubbled lines, + # and * or ? for double bubbles on a single line. + # + + my $matchon; + if ($$scantron_config{'Qon'} eq 'letter') { + $matchon = '[A-Z]'; + } elsif ($$scantron_config{'Qon'} eq 'number') { + $matchon = '\d'; + } + my $occurrences = 0; + if (($responsetype_per_response{$questnum-1} eq 'essayresponse') || + ($responsetype_per_response{$questnum-1} eq 'formularesponse') || + ($responsetype_per_response{$questnum-1} eq 'stringresponse') || + ($responsetype_per_response{$questnum-1} eq 'imageresponse') || + ($responsetype_per_response{$questnum-1} eq 'reactionresponse') || + ($responsetype_per_response{$questnum-1} eq 'organicresponse')) { + my @singlelines = split('',$currquest); + foreach my $entry (@singlelines) { + $occurrences = &occurence_count($entry,$matchon); + if ($occurrences > 1) { + last; + } + } + } else { + $occurrences = &occurence_count($currquest,$matchon); + } + if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) { + push(@{$record->{'scantron.doubleerror'}},$quest_id); + for (my $ans=0; $ans<$answers_needed; $ans++) { + my $bubble = substr($currquest,$ans,1); + if ($bubble =~ /$matchon/ ) { + if ($$scantron_config{'Qon'} eq 'number') { + if ($bubble == 0) { + $bubble = 10; + } + $record->{"scantron.$ansnum.answer"} = + $alphabet->[$bubble-1]; + } else { + $record->{"scantron.$ansnum.answer"} = $bubble; + } + } else { + $record->{"scantron.$ansnum.answer"}=''; + } + $ansnum++; + } + } elsif (!defined($currquest) + || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest)) + || (&occurence_count($currquest,$matchon) == 0)) { + for (my $ans=0; $ans<$answers_needed; $ans++ ) { + $record->{"scantron.$ansnum.answer"}=''; + $ansnum++; + } + if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) { + push(@{$record->{'scantron.missingerror'}},$quest_id); + } + } else { + if ($$scantron_config{'Qon'} eq 'number') { + $currquest = &digits_to_letters($currquest); + } + for (my $ans=0; $ans<$answers_needed; $ans++) { + my $bubble = substr($currquest,$ans,1); + $record->{"scantron.$ansnum.answer"} = $bubble; + $ansnum++; + } + } + return $ansnum; +} + +sub scantron_validator_positional { + my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest, + $whichline,$alphabet,$record,$scantron_config,$scan_data) = @_; + + # Otherwise there's a positional notation; + # each bubble line requires Qlength items, and there are filled in + # bubbles for each case where there 'Qon' characters. + # + + my @array=split($$scantron_config{'Qon'},$currquest,-1); + + # If the split only gives us one element.. the full length of the + # answer string, no bubbles are filled in: + + if ($answers_needed eq '') { + return; + } + + if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) { + for (my $ans=0; $ans<$answers_needed; $ans++ ) { + $record->{"scantron.$ansnum.answer"}=''; + $ansnum++; + } + if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) { + push(@{$record->{"scantron.missingerror"}},$quest_id); + } + } elsif (scalar(@array) == 2) { + my $location = length($array[0]); + my $line_num = int($location / $$scantron_config{'Qlength'}); + my $bubble = $alphabet->[$location % $$scantron_config{'Qlength'}]; + for (my $ans=0; $ans<$answers_needed; $ans++) { + if ($ans eq $line_num) { + $record->{"scantron.$ansnum.answer"} = $bubble; + } else { + $record->{"scantron.$ansnum.answer"} = ' '; + } + $ansnum++; + } + } else { + # If there's more than one instance of a bubble character + # That's a double bubble; with positional notation we can + # record all the bubbles filled in as well as the + # fact this response consists of multiple bubbles. + # + if (($responsetype_per_response{$questnum-1} eq 'essayresponse') || + ($responsetype_per_response{$questnum-1} eq 'formularesponse') || + ($responsetype_per_response{$questnum-1} eq 'stringresponse') || + ($responsetype_per_response{$questnum-1} eq 'imageresponse') || + ($responsetype_per_response{$questnum-1} eq 'reactionresponse') || + ($responsetype_per_response{$questnum-1} eq 'organicresponse')) { + my $doubleerror = 0; + while (($currquest >= $$scantron_config{'Qlength'}) && + (!$doubleerror)) { + my $currline = substr($currquest,0,$$scantron_config{'Qlength'}); + $currquest = substr($currquest,$$scantron_config{'Qlength'}); + my @currarray = split($$scantron_config{'Qon'},$currline,-1); + if (length(@currarray) > 2) { + $doubleerror = 1; + } + } + if ($doubleerror) { + push(@{$record->{'scantron.doubleerror'}},$quest_id); + } + } else { + push(@{$record->{'scantron.doubleerror'}},$quest_id); + } + my $item = $ansnum; + for (my $ans=0; $ans<$answers_needed; $ans++) { + $record->{"scantron.$item.answer"} = ''; + $item ++; + } + + my @ans=@array; + my $i=0; + my $increment = 0; + while ($#ans) { + $i+=length($ans[0]) + $increment; + my $line = int($i/$$scantron_config{'Qlength'} + $ansnum); + my $bubble = $i%$$scantron_config{'Qlength'}; + $record->{"scantron.$line.answer"}.=$alphabet->[$bubble]; + shift(@ans); + $increment = 1; + } + $ansnum += $answers_needed; + } + return $ansnum; +} + =pod =item scantron_add_delay @@ -5283,7 +6045,8 @@ sub scantron_process_corrections { &scantron_fixup_scanline(\%scantron_config,$scan_data,$line, $which,'answer', { 'question'=>$question, - 'response'=>$env{"form.scantron_correct_Q_$question"}}); + 'response'=>$env{"form.scantron_correct_Q_$question"}, + 'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}}); if ($err) { last; } } } @@ -5388,7 +6151,7 @@ sub remember_current_skipped { sub check_for_error { my ($r,$result)=@_; if ($result ne 'ok' && $result ne 'not_found' ) { - $r->print("An error occurred ($result) when trying to Remove the existing corrections."); + $r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result)); } } @@ -5412,25 +6175,25 @@ sub scantron_warning_screen { $CODElist=$env{'form.scantron_CODElist'}; if ($env{'form.scantron_CODElist'} eq '') { $CODElist='None'; } $CODElist= - 'List of CODES to validate against:'. + ''.&mt('List of CODES to validate against:').''. $env{'form.scantron_CODElist'}.''; } - return (< -Please double check the information - below before clicking on '$button_text' + +'.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'

- - -$CODElist + + +'.$CODElist.'
Sequence to be Graded:$title
Data File that will be used:$env{'form.scantron_selectfile'}
'.&mt('Sequence to be Graded:').''.$title.'
'.&mt('Data File that will be used:').''.$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.

+

'.&mt('If this information is correct, please click on \'[_1]\'.',&mt($button_text)).'

+

'.&mt('If something is incorrect, please click the \'Grading Menu\' button to start over.').'


-STUFF +'); } =pod @@ -5451,23 +6214,23 @@ sub scantron_do_warning { if ( $env{'form.selectpage'} eq '' || $env{'form.scantron_selectfile'} eq '' || $env{'form.scantron_format'} eq '' ) { - $r->print("

You have forgetten to specify some information. Please go Back and try again.

"); + $r->print("

".&mt('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

'); + $r->print('

'.&mt('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.

'); + $r->print('

'.&mt('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.

'); + $r->print('

'.&mt('You have not selected a the format of the student\'s response data.').'

'); } } else { my $warning=&scantron_warning_screen('Grading: Validate Records'); - $r->print(< + $r->print(' +'.$warning.' + -STUFF +'); } $r->print("
".&show_grading_menu_form($symb)); return ''; @@ -5495,6 +6258,20 @@ sub scantron_form_start { SCANTRONFORM + + my $line = 0; + while (defined($env{"form.scantron.bubblelines.$line"})) { + my $chunk = + ''."\n"; + $chunk .= + ''."\n"; + $chunk .= + ''."\n"; + $chunk .= + ''."\n"; + $result .= $chunk; + $line++; + } return $result; } @@ -5536,10 +6313,15 @@ sub scantron_validate_file { if ($env{'form.scantron_corrections'}) { &scantron_process_corrections($r); } - $r->print("

Gathering necessary info.

");$r->rflush(); + $r->print('

'.&mt('Gathering necessary information.').'

');$r->rflush(); #get the student pick code ready $r->print(&Apache::loncommon::studentbrowser_javascript()); - my $max_bubble=&scantron_get_maxbubble(); + my $nav_error; + my $max_bubble=&scantron_get_maxbubble(\$nav_error); + if ($nav_error) { + $r->print(&navmap_errormsg()); + return ''; + } my $result=&scantron_form_start($max_bubble).$default_form_data; $r->print($result); @@ -5553,9 +6335,10 @@ sub scantron_validate_file { } my $currentphase=$env{'form.validatepass'}; + my $stop=0; while (!$stop && $currentphase < scalar(@validate_phases)) { - $r->print("

Validating ".$validate_phases[$currentphase]."

"); + $r->print(&mt('Validating '.$validate_phases[$currentphase]).'
'); $r->rflush(); my $which="scantron_validate_".$validate_phases[$currentphase]; { @@ -5565,28 +6348,37 @@ sub scantron_validate_file { } if (!$stop) { my $warning=&scantron_warning_screen('Start Grading'); - $r->print(< -$warning - - -STUFF - + $r->print(&mt('Validation process complete.').'
'. + $warning. + &mt('Perform verification for each student after storage of submissions?'). + ' '. + (' 'x3).'
'. + &mt('Grading will take longer if you use verification.').'
'. + &mt("Alternatively, the 'Review bubblesheet data' utility (see grading menu) can be used for all students after grading is complete.").'

'. + ''. + ''."\n"); } else { $r->print(''); $r->print(""); } if ($stop) { if ($validate_phases[$currentphase] eq 'sequence') { - $r->print(''); - $r->print(' this error
'); + $r->print(''); + $r->print(' '.&mt('this error').'
'); - $r->print("

Or click the 'Grading Menu' button to start over.

"); + $r->print("

".&mt("Or click the 'Grading Menu' button to start over.")."

"); } else { - $r->print(''); - $r->print(' using corrected info
'); - $r->print(""); - $r->print(" this scanline saving it for later."); + if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') { + $r->print(''); + } else { + $r->print(''); + } + $r->print(' '.&mt('using corrected info').'
'); + $r->print(""); + $r->print(" ".&mt("this scanline saving it for later.")); } } $r->print("
".&show_grading_menu_form($symb)); @@ -5647,7 +6439,10 @@ sub scantron_remove_scan_data { } my $result; if (@todelete) { - $result=&Apache::lonnet::del('nohist_scantrondata',\@todelete,$cdom,$cname); + $result = &Apache::lonnet::del('nohist_scantrondata', + \@todelete,$cdom,$cname); + } else { + $result = 'ok'; } return $result; } @@ -5938,6 +6733,10 @@ sub scantron_validate_sequence { my ($r,$currentphase) = @_; my $navmap=Apache::lonnavmaps::navmap->new(); + unless (ref($navmap)) { + $r->print(&navmap_errormsg()); + return (1,$currentphase); + } my (undef,undef,$sequence)= &Apache::lonnet::decode_symb($env{'form.selectpage'}); @@ -5957,14 +6756,7 @@ sub scantron_validate_sequence { 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,$currentphase) = @_; @@ -5977,6 +6769,13 @@ sub scantron_validate_ID { my %scantron_config=&get_scantron_config($env{'form.scantron_format'}); my ($scanlines,$scan_data)=&scantron_getfile(); + my $nav_error; + &scantron_get_maxbubble(\$nav_error); # parse needs the bubble_lines.. array. + if ($nav_error) { + $r->print(&navmap_errormsg()); + return(1,$currentphase); + } + my %found=('ids'=>{},'usernames'=>{}); for (my $i=0;$i<=$scanlines->{'count'};$i++) { my $line=&scantron_get_line($scanlines,$scan_data,$i); @@ -6028,67 +6827,43 @@ sub scantron_validate_ID { 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, probaly need +#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"); + $r->print("

".&mt("An error was detected ($error)". + " for PaperID [_1]", + $$scan_record{'scantron.PaperID'})."

\n"); } else { - $r->print(" in scanline $i 
".
-		  $line."
\n"); - } - my $message="

The ID on the form is ". - $$scan_record{'scantron.ID'}."
\n". - "The name on the paper is ". - $$scan_record{'scantron.LastName'}.",". - $$scan_record{'scantron.FirstName'}."

"; + $r->print("

".&mt("An error was detected ($error)". + " in scanline [_1] 

[_2]
", + $i,$line)."

\n"); + } + my $message="

".&mt("The ID on the form is [_1]
". + "The name on the paper is [_2],[_3]", + $$scan_record{'scantron.ID'}, + $$scan_record{'scantron.LastName'}, + $$scan_record{'scantron.FirstName'})."

"; $r->print(''."\n"); $r->print(''."\n"); + # Array populated for doublebubble or + my @lines_to_correct; # missingbubble errors to build javascript + # to validate radio button checking + if ($error =~ /ID$/) { if ($error eq 'incorrectID') { - $r->print("The encoded ID is not in the classlist

\n"); + $r->print("

".&mt("The encoded ID is not in the classlist"). + "

\n"); } elsif ($error eq 'duplicateID') { - $r->print("The encoded ID has also been used by a previous paper $arg

\n"); + $r->print("

".&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."

\n"); } $r->print($message); - $r->print("

How should I handle this?
\n"); + $r->print("

".&mt("How should I handle this?")."
\n"); $r->print("\n

  • "); #FIXME it would be nice if this sent back the user ID and #could do partial userID matches @@ -6101,14 +6876,14 @@ sub scantron_get_correction { $r->print('
    • '); } elsif ($error =~ /CODE$/) { if ($error eq 'incorrectCODE') { - $r->print("

    The encoded CODE is not in the list of possible CODEs

    \n"); + $r->print("

    ".&mt("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("

    ".&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."

    \n"); } - $r->print("

    The CODE on the form is '". - $$scan_record{'scantron.CODE'}."'
    \n"); + $r->print("

    ".&mt("The CODE on the form is '[_1]'", + $$scan_record{'scantron.CODE'})."
    \n"); $r->print($message); - $r->print("

    How should I handle this?
    \n"); + $r->print("

    ".&mt("How should I handle this?")."
    \n"); $r->print("\n
    "); my $i=0; if ($error eq 'incorrectCODE' @@ -6117,16 +6892,27 @@ sub scantron_get_correction { if ($closest > 0) { foreach my $testcode (@{$closest}) { my $checked=''; - if (!$i) { $checked=' checked="checked" '; } - $r->print(""); + if (!$i) { $checked=' checked="checked"'; } + $r->print(" + + "); $r->print("\n
    "); $i++; } } } if ($$scan_record{'scantron.CODE'}=~/\S/ ) { - my $checked; if (!$i) { $checked=' checked="checked" '; } - $r->print(""); + my $checked; if (!$i) { $checked=' checked="checked"'; } + $r->print(" + "); $r->print("\n
    "); } @@ -6148,38 +6934,221 @@ ENDSCRIPT "&curCODE=".&escape($$scan_record{'scantron.CODE'}). "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'}); if ($env{'form.scantron_CODElist'} =~ /\S/) { - $r->print(" Selected CODE is "); + $r->print(" + + ".&mt("Selected CODE is [_1]",'')); $r->print("\n
    "); } - $r->print(" as the CODE."); + $r->print(" + ")); $r->print("\n

    "); } elsif ($error eq 'doublebubble') { - $r->print("

    There have been multiple bubbles scanned for a some question(s)

    \n"); + $r->print("

    ".&mt("There have been multiple bubbles scanned for some question(s)")."

    \n"); + + # The form field scantron_questions is acutally a list of line numbers. + # represented by this form so: + + my $line_list = &questions_to_line_list($arg); + $r->print(''); + $line_list.'" />'); $r->print($message); - $r->print("

    Please indicate which bubble should be used for grading

    "); + $r->print("

    ".&mt("Please indicate which bubble should be used for grading")."

    "); foreach my $question (@{$arg}) { - my $selected=$$scan_record{"scantron.$question.answer"}; - &scantron_bubble_selector($r,$scan_config,$question, - split('',$selected)); + my @linenums = &prompt_for_corrections($r,$question,$scan_config, + $scan_record, $error); + push(@lines_to_correct,@linenums); } + $r->print(&verify_bubbles_checked(@lines_to_correct)); } elsif ($error eq 'missingbubble') { - $r->print("

    There have been no bubbles scanned for some question(s)

    \n"); + $r->print("

    ".&mt("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("

    ".&mt("Please indicate which bubble should be used for grading.")."

    "); + $r->print(&mt("Some questions have no scanned bubbles.")."\n"); + + # The form field scantron_questions is actually a list of line numbers not + # a list of question numbers. Therefore: + # + + my $line_list = &questions_to_line_list($arg); + $r->print(''); + $line_list.'" />'); foreach my $question (@{$arg}) { - my $selected=$$scan_record{"scantron.$question.answer"}; - &scantron_bubble_selector($r,$scan_config,$question); + my @linenums = &prompt_for_corrections($r,$question,$scan_config, + $scan_record, $error); + push(@lines_to_correct,@linenums); } + $r->print(&verify_bubbles_checked(@lines_to_correct)); } else { $r->print("\n
      "); } $r->print("\n
    "); +} +sub verify_bubbles_checked { + my (@ansnums) = @_; + my $ansnumstr = join('","',@ansnums); + my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines."); + my $output = (< +function verify_bubble_radio(form) { + var ansnumArray = new Array ("$ansnumstr"); + var need_bubble_count = 0; + for (var i=0; i 1) { + var bubble_picked = 0; + for (var j=0; j +ENDSCRIPT + return $output; +} + +=pod + +=item questions_to_line_list + +Converts a list of questions into a string of comma separated +line numbers in the answer sheet used by the questions. This is +used to fill in the scantron_questions form field. + + Arguments: + questions - Reference to an array of questions. + +=cut + + +sub questions_to_line_list { + my ($questions) = @_; + my @lines; + + foreach my $item (@{$questions}) { + my $question = $item; + my ($first,$count,$last); + if ($item =~ /^(\d+)\.(\d+)$/) { + $question = $1; + my $subquestion = $2; + $first = $first_bubble_line{$question-1} + 1; + my @subans = split(/,/,$subdivided_bubble_lines{$question-1}); + my $subcount = 1; + while ($subcount<$subquestion) { + $first += $subans[$subcount-1]; + $subcount ++; + } + $count = $subans[$subquestion-1]; + } else { + $first = $first_bubble_line{$question-1} + 1; + $count = $bubble_lines_per_response{$question-1}; + } + $last = $first+$count-1; + push(@lines, ($first..$last)); + } + return join(',', @lines); +} + +=pod + +=item prompt_for_corrections + +Prompts for a potentially multiline correction to the +user's bubbling (factors out common code from scantron_get_correction +for multi and missing bubble cases). + + Arguments: + $r - Apache request object. + $question - The question number to prompt for. + $scan_config - The scantron file configuration hash. + $scan_record - Reference to the hash that has the the parsed scanlines. + $error - Type of error + + Implicit inputs: + %bubble_lines_per_response - Starting line numbers for each question. + Numbered from 0 (but question numbers are from + 1. + %first_bubble_line - Starting bubble line for each question. + %subdivided_bubble_lines - optionresponse, matchresponse and rankresponse + type problems render as separate sub-questions, + in exam mode. This hash contains a + comma-separated list of the lines per + sub-question. + %responsetype_per_response - essayresponse, formularesponse, + stringresponse, imageresponse, reactionresponse, + and organicresponse type problem parts can have + multiple lines per response if the weight + assigned exceeds 10. In this case, only + one bubble per line is permitted, but more + than one line might contain bubbles, e.g. + bubbling of: line 1 - J, line 2 - J, + line 3 - B would assign 22 points. + +=cut + +sub prompt_for_corrections { + my ($r, $question, $scan_config, $scan_record, $error) = @_; + my ($current_line,$lines); + my @linenums; + my $questionnum = $question; + if ($question =~ /^(\d+)\.(\d+)$/) { + $question = $1; + $current_line = $first_bubble_line{$question-1} + 1 ; + my $subquestion = $2; + my @subans = split(/,/,$subdivided_bubble_lines{$question-1}); + my $subcount = 1; + while ($subcount<$subquestion) { + $current_line += $subans[$subcount-1]; + $subcount ++; + } + $lines = $subans[$subquestion-1]; + } else { + $current_line = $first_bubble_line{$question-1} + 1 ; + $lines = $bubble_lines_per_response{$question-1}; + } + if ($lines > 1) { + $r->print(&mt('The group of bubble lines below responds to a single question.').'
    '); + if (($responsetype_per_response{$question-1} eq 'essayresponse') || + ($responsetype_per_response{$question-1} eq 'formularesponse') || + ($responsetype_per_response{$question-1} eq 'stringresponse') || + ($responsetype_per_response{$question-1} eq 'imageresponse') || + ($responsetype_per_response{$question-1} eq 'reactionresponse') || + ($responsetype_per_response{$question-1} eq 'organicresponse')) { + $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'

    '.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'
    '.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'
    '.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'

    '); + } else { + $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."
    "); + } + } + for (my $i =0; $i < $lines; $i++) { + my $selected = $$scan_record{"scantron.$current_line.answer"}; + &scantron_bubble_selector($r,$scan_config,$current_line, + $questionnum,$error,split('', $selected)); + push(@linenums,$current_line); + $current_line++; + } + if ($lines > 1) { + $r->print("

    "); + } + return @linenums; } =pod @@ -6192,71 +7161,47 @@ ENDSCRIPT Arguments: $r - Apache request object $scan_config - hash from &get_scantron_config() - $quest - number of the bubble line to make a corrector for - $selected - array of letters of previously selected bubbles - $lines - if present, number of bubble lines to show + $line - Number of the line being displayed. + $questionnum - Question number (may include subquestion) + $error - Type of error. + @selected - Array of bubbles picked on this line. =cut sub scantron_bubble_selector { - my ($r,$scan_config,$quest,@selected, $lines)=@_; + my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_; my $max=$$scan_config{'Qlength'}; my $scmode=$$scan_config{'Qon'}; if ($scmode eq 'number' || $scmode eq 'letter') { $max=10; } - - if (!defined($lines)) { - $lines = 1; - } - my $total_lines = $lines*2; my @alphabet=('A'..'Z'); - $r->print(""); - - for (my $l = 0; $l < $lines; $l++) { - if ($l != 0) { - $r->print(''); - } - - # FIXME: This loop probably has to be considerably more clever for - # multiline bubbles: User can multibubble by having bubbles in - # several lines. User can skip lines legitimately etc. etc. - - for (my $i=0;$i<$max;$i++) { - $r->print("\n".''); - - } - - if ($l == 0) { - my $lspan = $total_lines * 2; # 2 table rows per bubble line. - - $r->print(''); - - } - - $r->print(''); - - # FIXME: This may have to be a bit more clever for - # multiline questions (different values e.g..). - - for (my $i=0;$i<$max;$i++) { - $r->print("\n". - '"); - } - $r->print(''); - - - } - $r->print('
    $quest
    '); - if ($selected[0] eq $alphabet[$i]) { - $r->print('X'); - shift(@selected) ; - } else { - $r->print(' '); - } - $r->print('
    '); + $r->print(&Apache::loncommon::start_data_table(). + &Apache::loncommon::start_data_table_row()); + $r->print(''.$line.''); + for (my $i=0;$i<$max+1;$i++) { + $r->print("\n".''); + if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) } + else { $r->print(' '); } + $r->print(''); + } + $r->print(&Apache::loncommon::end_data_table_row(). + &Apache::loncommon::start_data_table_row()); + for (my $i=0;$i<$max;$i++) { + $r->print("\n". + '"); + } + my $nobub_checked = ' '; + if ($error eq 'missingbubble') { + $nobub_checked = ' checked = "checked" '; + } + $r->print("\n".''."\n".''); + $r->print(&Apache::loncommon::end_data_table_row(). + &Apache::loncommon::end_data_table()); } =pod @@ -6382,6 +7327,13 @@ sub scantron_validate_CODE { my %allcodes=&get_codes(); + my $nav_error; + &scantron_get_maxbubble(\$nav_error); # parse needs the lines per response array. + if ($nav_error) { + $r->print(&navmap_errormsg()); + return(1,$currentphase); + } + my ($scanlines,$scan_data)=&scantron_getfile(); for (my $i=0;$i<=$scanlines->{'count'};$i++) { my $line=&scantron_get_line($scanlines,$scan_data,$i); @@ -6411,7 +7363,7 @@ sub scantron_validate_CODE { $line,'duplicateCODE',$usedCODEs{$CODE}); return(1,$currentphase); } - push (@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'}); + push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'}); } return (0,$currentphase+1); } @@ -6434,6 +7386,13 @@ sub scantron_validate_doublebubble { #get scantron line setup my %scantron_config=&get_scantron_config($env{'form.scantron_format'}); my ($scanlines,$scan_data)=&scantron_getfile(); + my $nav_error; + &scantron_get_maxbubble(\$nav_error); # parse needs the bubble line array. + if ($nav_error) { + $r->print(&navmap_errormsg()); + return(1,$currentphase); + } + for (my $i=0;$i<=$scanlines->{'count'};$i++) { my $line=&scantron_get_line($scanlines,$scan_data,$i); if ($line=~/^[\s\cz]*$/) { next; } @@ -6448,54 +7407,104 @@ sub scantron_validate_doublebubble { 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 result to $env{'form.scantron_maxbubble'} -=cut - -sub scantron_get_maxbubble { +sub scantron_get_maxbubble { + my ($nav_error) = @_; if (defined($env{'form.scantron_maxbubble'}) && $env{'form.scantron_maxbubble'}) { + &restore_bubble_lines(); return $env{'form.scantron_maxbubble'}; } - my $navmap=Apache::lonnavmaps::navmap->new(); - my (undef,undef,$sequence)= + my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'}); + my $navmap=Apache::lonnavmaps::navmap->new(); + unless (ref($navmap)) { + if (ref($nav_error)) { + $$nav_error = 1; + } + } my $map=$navmap->getResourceByUrl($sequence); my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0); &Apache::lonxml::clear_problem_counter(); + my $uname = $env{'user.name'}; + my $udom = $env{'user.domain'}; + my $cid = $env{'request.course.id'}; + my $total_lines = 0; + %bubble_lines_per_response = (); + %first_bubble_line = (); + %subdivided_bubble_lines = (); + %responsetype_per_response = (); + + my $response_number = 0; + my $bubble_line = 0; foreach my $resource (@resources) { - my $result=&Apache::lonnet::ssi($resource->src(), - ('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"}; + } + + $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\.'); - $env{'form.scantron_maxbubble'} = - &Apache::lonxml::get_problem_counter()-1; + &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 - bubble lines with missing bubbles that haven't been verified as missing. - -=cut - sub scantron_validate_missingbubbles { my ($r,$currentphase) = @_; #get student info @@ -6505,7 +7514,11 @@ sub scantron_validate_missingbubbles { #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(); + my $nav_error; + my $max_bubble=&scantron_get_maxbubble(\$nav_error); + if ($nav_error) { + return(1,$currentphase); + } if (!$max_bubble) { $max_bubble=2**31; } for (my $i=0;$i<=$scanlines->{'count'};$i++) { my $line=&scantron_get_line($scanlines,$scan_data,$i); @@ -6514,8 +7527,29 @@ sub scantron_validate_missingbubbles { $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; } + my $lastbubble; + if ($missing =~ /^(\d+)\.(\d+)$/) { + my $question = $1; + my $subquestion = $2; + if (!defined($first_bubble_line{$question -1})) { next; } + my $first = $first_bubble_line{$question-1}; + my @subans = split(/,/,$subdivided_bubble_lines{$question-1}); + my $subcount = 1; + while ($subcount<$subquestion) { + $first += $subans[$subcount-1]; + $subcount ++; + } + my $count = $subans[$subquestion-1]; + $lastbubble = $first + $count; + } else { + if (!defined($first_bubble_line{$missing - 1})) { next; } + $lastbubble = $first_bubble_line{$missing - 1} + $bubble_lines_per_response{$missing - 1}; + } + if ($lastbubble > $max_bubble) { next; } push(@to_correct,$missing); } if (@to_correct) { @@ -6528,35 +7562,15 @@ sub scantron_validate_missingbubbles { 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 (!$symb) {return '';} + if (!$symb) { + return ''; + } my $default_form_data=&defaultFormData($symb); my %scantron_config=&get_scantron_config($env{'form.scantron_format'}); @@ -6564,9 +7578,30 @@ sub scantron_process_students { my $classlist=&Apache::loncoursedata::get_classlist(); my %idmap=&username_to_idmap($classlist); my $navmap=Apache::lonnavmaps::navmap->new(); + unless (ref($navmap)) { + $r->print(&navmap_errormsg()); + return ''; + } my $map=$navmap->getResourceByUrl($sequence); my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0); -# $r->print("geto ".scalar(@resources)."
    "); + my (%grader_partids_by_symb,%grader_randomlists_by_symb); + &graders_resources_pass(\@resources,\%grader_partids_by_symb, + \%grader_randomlists_by_symb); + foreach my $resource (@resources) { + my $ressymb = $resource->symb(); + my ($analysis,$parts) = + &scantron_partids_tograde($resource,$env{'request.course.id'}, + $env{'user.name'},$env{'user.domain'},1); + $grader_partids_by_symb{$ressymb} = $parts; + if (ref($analysis) eq 'HASH') { + if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') { + $grader_randomlists_by_symb{$ressymb} = + $analysis->{'parts_withrandomlist'}; + } + } + } + + my ($uname,$udom); my $result= < @@ -6575,17 +7610,41 @@ 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,$scan_data); - my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Scantron Status', - 'Scantron Progress',$count, + my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet Status', + 'Bubblesheet Progress',$count, 'inline',undef,'scantronupload'); &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state, 'Processing first student'); + $r->print('
    '); my $start=&Time::HiRes::time(); my $i=-1; - my ($uname,$udom,$started); + my $started; + + my $nav_error; + &scantron_get_maxbubble(\$nav_error); # Need the bubble lines array to parse. + if ($nav_error) { + $r->print(&navmap_errormsg()); + return ''; + } + + # If an ssi failed in scantron_get_maxbubble, put an error message out to + # the user and return. + + if ($ssi_error) { + $r->print(""); + &ssi_print_error($r); + $r->print(&show_grading_menu_form($symb)); + &Apache::lonnet::remove_lock($lock); + 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)=('',''); $i++; @@ -6611,43 +7670,119 @@ SCANTRONFORM } ($uname,$udom)=split(/:/,$uname); + my %partids_by_symb; + foreach my $resource (@resources) { + my $ressymb = $resource->symb(); + if ((exists($grader_randomlists_by_symb{$ressymb})) || + (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) { + my ($analysis,$parts) = + &scantron_partids_tograde($resource,$env{'request.course.id'},$uname,$udom); + $partids_by_symb{$ressymb} = $parts; + } else { + $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb}; + } + } + &Apache::lonxml::clear_problem_counter(); - &Apache::lonnet::appenv(%$scan_record); + &Apache::lonnet::appenv($scan_record); 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 $result=&Apache::lonnet::ssi($resource->src(),%form); - if ($result ne '') { - &Apache::lonnet::logthis("scantron grading error -> $result"); - &Apache::lonnet::logthis("scantron grading error info name $uname domain $udom course $env{'request.course.id'} url ".$resource->src()); - } - 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,\%partids_by_symb) 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'=>$line}; - if (&Apache::loncommon::connection_aborted($r)) { last; } + 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) { + my $ressymb = $resource->symb(); + ($counter,my $recording) = + &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'}, + $counter,$studentdata,$partids_by_symb{$ressymb}, + \%scantron_config,\%lettdig,$numletts); + $studentrecord .= $recording; + } + if ($studentrecord ne $studentdata) { + &Apache::lonxml::clear_problem_counter(); + if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode, + \@resources,\%partids_by_symb) 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($lock); + delete($completedstudents{$uname}); + return ''; + } + $counter = -1; + $studentrecord = ''; + foreach my $resource (@resources) { + my $ressymb = $resource->symb(); + ($counter,my $recording) = + &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'}, + $counter,$studentdata,$partids_by_symb{$ressymb}, + \%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)); + } + $r->print('
    '.&Apache::loncommon::start_data_table()."\n". + &Apache::loncommon::start_data_table_header_row()."\n". + ''.&mt('Source').''.&mt('Bubbled responses').''. + &Apache::loncommon::end_data_table_header_row()."\n". + &Apache::loncommon::start_data_table_row(). + ''.&mt('Bubble Sheet').''. + ''.$studentdata.''. + &Apache::loncommon::end_data_table_row(). + &Apache::loncommon::start_data_table_row(). + 'Stored submissions'. + ''.$studentrecord.''."\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($r)) { last; } } continue { &Apache::lonxml::clear_problem_counter(); - &Apache::lonnet::delenv('scantron\.'); + &Apache::lonnet::delenv('scantron.'); } &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); + &Apache::lonnet::remove_lock($lock); # my $lasttime = &Time::HiRes::time()-$start; # $r->print("

    took $lasttime

    "); @@ -6656,58 +7791,127 @@ SCANTRONFORM return ''; } -=pod - -=item scantron_upload_scantron_data - - Creates the screen for adding a new bubble sheet data file to a course. +sub graders_resources_pass { + my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb) = @_; + if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && + (ref($grader_randomlists_by_symb) eq 'HASH')) { + foreach my $resource (@{$resources}) { + my $ressymb = $resource->symb(); + my ($analysis,$parts) = + &scantron_partids_tograde($resource,$env{'request.course.id'}, + $env{'user.name'},$env{'user.domain'},1); + $grader_partids_by_symb->{$ressymb} = $parts; + if (ref($analysis) eq 'HASH') { + if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') { + $grader_randomlists_by_symb->{$ressymb} = + $analysis->{'parts_withrandomlist'}; + } + } + } + } + return; +} -=cut +sub grade_student_bubbles { + my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts) = @_; + if (ref($resources) eq 'ARRAY') { + my $count = 0; + foreach my $resource (@{$resources}) { + my $ressymb = $resource->symb(); + my %form = ('submitted' => 'scantron', + 'grade_target' => 'grade', + 'grade_username' => $uname, + 'grade_domain' => $udom, + 'grade_courseid' => $env{'request.course.id'}, + 'grade_symb' => $ressymb, + 'CODE' => $scancode + ); + if (ref($parts) eq 'HASH') { + if (ref($parts->{$ressymb}) eq 'ARRAY') { + foreach my $part (@{$parts->{$ressymb}}) { + $form{'scantron_questnum_start.'.$part} = + 1+$env{'form.scantron.first_bubble_line.'.$count}; + $count++; + } + } + } + my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form); + return 'ssi_error' if ($ssi_error); + last if (&Apache::loncommon::connection_aborted($r)); + } + } + return; +} sub scantron_upload_scantron_data { my ($r)=@_; - $r->print(&Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'})); + my $dom = $env{'request.role.domain'}; + my $domdesc = &Apache::lonnet::domain($dom,'description'); + $r->print(&Apache::loncommon::coursebrowser_javascript($dom)); my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid', 'domainid', - 'coursename'); - my $domsel=&Apache::loncommon::select_dom_form($env{'request.role.domain'}, - 'domainid'); + 'coursename',$dom); + my $syllabuslink = ''.&mt('Syllabus').''. + (' 'x2).&mt('(shows course personnel)'); my $default_form_data=&defaultFormData(&get_symb($r,1)); - $r->print(<print(' -
    -$default_form_data - - - - - - -
    $select_link
    Course ID:
    Course Name:
    Domain: $domsel
    File to upload:
    - - +

    '.&mt('Send scanned bubblesheet data to a course').'

    + + +'.$default_form_data. + &Apache::lonhtmlcommon::start_pick_box(). + &Apache::lonhtmlcommon::row_title(&mt('Course ID')). + ''.$select_link. + &Apache::lonhtmlcommon::row_closure(). + &Apache::lonhtmlcommon::row_title(&mt('Course Name')). + ''.$syllabuslink. + &Apache::lonhtmlcommon::row_closure(). + &Apache::lonhtmlcommon::row_title(&mt('Domain')). + ''.$domdesc. + &Apache::lonhtmlcommon::row_closure(). + &Apache::lonhtmlcommon::row_title(&mt('File to upload')). + ''. + &Apache::lonhtmlcommon::row_closure(1). + &Apache::lonhtmlcommon::end_pick_box().'
    + + +
    -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)=@_; @@ -6715,12 +7919,12 @@ sub scantron_upload_scantron_data_save { my $doanotherupload= '
    '."\n". ''."\n". - ''."\n". + ''."\n". '
    '."\n"; if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) && !&Apache::lonnet::allowed('usc', $env{'form.domainid'}.'_'.$env{'form.courseid'})) { - $r->print("You are not allowed to upload Scantron data to the requested course.
    "); + $r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."
    "); if ($symb) { $r->print(&show_grading_menu_form($symb)); } else { @@ -6729,31 +7933,25 @@ sub scantron_upload_scantron_data_save { return ''; } my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'}); - $r->print("Doing upload to ".$coursedata{'description'}."
    "); - my $fname=$env{'form.upfile.filename'}; - #FIXME - #copied from lonnet::userfileupload() - #make that function able to target a specified course - # Replace Windows backslashes by forward slashes - $fname=~s/\\/\//g; - # Get rid of everything but the actual filename - $fname=~s/^.*\/([^\/]+)$/$1/; - # Replace spaces by underscores - $fname=~s/\s+/\_/g; - # Replace all other weird characters by nothing - $fname=~s/[^\w\.\-]//g; - # See if there is anything left - unless ($fname) { return 'error: no uploaded file'; } - my $uploadedfile=$fname; - $fname='scantron_orig_'.$fname; + my $uploadedfile; + $r->print('

    '.&mt("Uploading file to [_1]",$coursedata{'description'}).'

    '); if (length($env{'form.upfile'}) < 2) { - $r->print("Error: The file you attempted to upload, ".&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').", contained no information. Please check that you entered the correct filename."); + $r->print(&mt('[_1]Error:[_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.','','',''.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'')); } 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.""); + my $result = + &Apache::lonnet::userfileupload('upfile','','scantron','','','', + $env{'form.courseid'},$env{'form.domainid'}); + if ($result =~ m{^/uploaded/}) { + $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]', + '','',(length($env{'form.upfile'})-1), + ''.$result.'')); + ($uploadedfile) = ($result =~ m{/([^/]+)$}); + $r->print(&validate_uploaded_scantron_file($env{'form.domainid'}, + $env{'form.courseid'},$uploadedfile)); } else { - $r->print("Error: An error (".$result.") occurred when attempting to upload the file, ".&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').""); + $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]', + '','',$result, + ''.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'')); } } if ($symb) { @@ -6764,13 +7962,91 @@ sub scantron_upload_scantron_data_save { return ''; } -=pod - -=item valid_file - - Validates that the requested bubble data file exists in the course. - -=cut +sub validate_uploaded_scantron_file { + my ($cdom,$cname,$fname) = @_; + my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname); + my @lines; + if ($scanlines ne '-1') { + @lines=split("\n",$scanlines,-1); + } + my $output; + if (@lines) { + my (%counts,$max_match_format); + my ($max_match_count,$max_match_pct) = (0,0); + my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname); + my %idmap = &username_to_idmap($classlist); + foreach my $key (keys(%idmap)) { + my $lckey = lc($key); + $idmap{$lckey} = $idmap{$key}; + } + my %unique_formats; + my @formatlines = &get_scantronformat_file(); + foreach my $line (@formatlines) { + chomp($line); + my @config = split(/:/,$line); + my $idstart = $config[5]; + my $idlength = $config[6]; + if (($idstart ne '') && ($idlength > 0)) { + if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') { + push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); + } else { + $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]]; + } + } + } + foreach my $key (keys(%unique_formats)) { + my ($idstart,$idlength) = split(':',$key); + %{$counts{$key}} = ( + 'found' => 0, + 'total' => 0, + ); + foreach my $line (@lines) { + next if ($line =~ /^#/); + next if ($line =~ /^[\s\cz]*$/); + my $id = substr($line,$idstart-1,$idlength); + $id = lc($id); + if (exists($idmap{$id})) { + $counts{$key}{'found'} ++; + } + $counts{$key}{'total'} ++; + } + if ($counts{$key}{'total'}) { + my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'}); + if (($max_match_format eq '') || ($percent_match > $max_match_pct)) { + $max_match_pct = $percent_match; + $max_match_format = $key; + $max_match_count = $counts{$key}{'total'}; + } + } + } + if (ref($unique_formats{$max_match_format}) eq 'ARRAY') { + my $format_descs; + my $numwithformat = @{$unique_formats{$max_match_format}}; + for (my $i=0; $i<$numwithformat; $i++) { + my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]); + if ($i<$numwithformat-2) { + $format_descs .= '"'.$desc.'", '; + } elsif ($i==$numwithformat-2) { + $format_descs .= '"'.$desc.'" '.&mt('and').' '; + } elsif ($i==$numwithformat-1) { + $format_descs .= '"'.$desc.'"'; + } + } + my $showpct = sprintf("%.0f",$max_match_pct).'%'; + $output .= '
    '.&mt('Comparison of student IDs in the uploaded file with the course roster found matches for [_1] of the [_2] entries in the file (for the format defined for [_3]).',''.$showpct.'',''.$max_match_count.'',$format_descs). + '
    '.&mt('A low percentage of matches results from one of the following:').'
      '. + '
    • '.&mt('The file was uploaded to the wrong course').'
      • '. + '
    • '.&mt('The data are not in the format expected for the domain: [_1]', + ''.$cdom.'').'
      • '. + '
    • '.&mt('Students did not bubble their IDs, or mis-bubbled them').'
      • '. + '
    • '.&mt('The course roster is not up to date').'
      • '. + '
    '; + } + } else { + $output = ''.&mt('Uploaded file contained no data').''; + } + return $output; +} sub valid_file { my ($requested_file)=@_; @@ -6780,16 +8056,6 @@ sub valid_file { 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)); @@ -6797,11 +8063,11 @@ sub scantron_download_scantron_data { my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; my $file=$env{'form.scantron_selectfile'}; if (! &valid_file($file)) { - $r->print(<print('

    - The requested file name was invalid. + '.&mt('The requested file name was invalid.').'

    -ERROR +'); $r->print(&show_grading_menu_form(&get_symb($r,1))); return; } @@ -6811,26 +8077,316 @@ ERROR &Apache::lonnet::allowuploaded('/adm/grades',$orig); &Apache::lonnet::allowuploaded('/adm/grades',$corrected); &Apache::lonnet::allowuploaded('/adm/grades',$skipped); - $r->print(<print('

    - Original file as uploaded by the scantron office. + '.&mt('[_1]Original[_2] file as uploaded by the scantron office.', + '','').'

    - Corrections, a file of corrected records that were used in grading. + '.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.', + '','').'

    - Skipped, a file of records that were skipped. + '.&mt('[_1]Skipped[_2], a file of records that were skipped.', + '','').'

    -DOWNLOAD +'); $r->print(&show_grading_menu_form(&get_symb($r,1))); return ''; } -=pod +sub checkscantron_results { + my ($r) = @_; + my ($symb)=&get_symb($r); + if (!$symb) {return '';} + my $grading_menu_button=&show_grading_menu_form($symb); + my $cid = $env{'request.course.id'}; + my %lettdig = &letter_to_digits(); + my $numletts = scalar(keys(%lettdig)); + my $cnum = $env{'course.'.$cid.'.num'}; + my $cdom = $env{'course.'.$cid.'.domain'}; + my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'}); + my %record; + my %scantron_config = + &Apache::grades::get_scantron_config($env{'form.scantron_format'}); + my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile(); + my $classlist=&Apache::loncoursedata::get_classlist(); + my %idmap=&Apache::grades::username_to_idmap($classlist); + my $navmap=Apache::lonnavmaps::navmap->new(); + unless (ref($navmap)) { + $r->print(&navmap_errormsg()); + return ''; + } + my $map=$navmap->getResourceByUrl($sequence); + my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0); + my (%grader_partids_by_symb,%grader_randomlists_by_symb); + &graders_resources_pass(\@resources,\%grader_partids_by_symb, \%grader_randomlists_by_symb); -=back + my ($uname,$udom); + my (%scandata,%lastname,%bylast); + $r->print(' +
    '."\n"); + + my @delayqueue; + my %completedstudents; + + my $count=&Apache::grades::get_todo_count($scanlines,$scan_data); + my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet/Submissions Comparison Status', + 'Progress of Bubblesheet Data/Submission Records Comparison',$count, + 'inline',undef,'checkscantron'); + my ($username,$domain,$started); + my $nav_error; + &scantron_get_maxbubble(\$nav_error); # Need the bubble lines array to parse. + if ($nav_error) { + $r->print(&navmap_errormsg()); + return ''; + } + + &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state, + 'Processing first student'); + my $start=&Time::HiRes::time(); + my $i=-1; + + while ($i<$scanlines->{'count'}) { + ($username,$domain,$uname)=('','',''); + $i++; + my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i); + if ($line=~/^[\s\cz]*$/) { next; } + if ($started) { + &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, + 'last student'); + } + $started=1; + my $scan_record= + &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config, + $scan_data); + unless ($uname=&Apache::grades::scantron_find_student($scan_record,$scan_data, + \%idmap,$i)) { + &Apache::grades::scantron_add_delay(\@delayqueue,$line, + 'Unable to find a student that matches',1); + next; + } + if (exists $completedstudents{$uname}) { + &Apache::grades::scantron_add_delay(\@delayqueue,$line, + 'Student '.$uname.' has multiple sheets',2); + next; + } + my $pid = $scan_record->{'scantron.ID'}; + $lastname{$pid} = $scan_record->{'scantron.LastName'}; + push(@{$bylast{$lastname{$pid}}},$pid); + my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'}; + $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos); + chomp($scandata{$pid}); + $scandata{$pid} =~ s/\r$//; + ($username,$domain)=split(/:/,$uname); + my $counter = -1; + foreach my $resource (@resources) { + my $parts; + my $ressymb = $resource->symb(); + if ((exists($grader_randomlists_by_symb{$ressymb})) || + (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) { + (my $analysis,$parts) = + &scantron_partids_tograde($resource,$env{'request.course.id'},$username,$domain); + } else { + $parts = $grader_partids_by_symb{$ressymb}; + } + ($counter,my $recording) = + &verify_scantron_grading($resource,$domain,$username,$cid,$counter, + $scandata{$pid},$parts, + \%scantron_config,\%lettdig,$numletts); + $record{$pid} .= $recording; + } + } + &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); + $r->print('
    '); + my ($okstudents,$badstudents,$numstudents,$passed,$failed); + $passed = 0; + $failed = 0; + $numstudents = 0; + foreach my $last (sort(keys(%bylast))) { + if (ref($bylast{$last}) eq 'ARRAY') { + foreach my $pid (sort(@{$bylast{$last}})) { + my $showscandata = $scandata{$pid}; + my $showrecord = $record{$pid}; + $showscandata =~ s/\s/ /g; + $showrecord =~ s/\s/ /g; + if ($scandata{$pid} eq $record{$pid}) { + my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row'; + $okstudents .= ''. +''.&mt('Bubblesheet').''.$showscandata.''.$last.''.$pid.''."\n". +''."\n". +''."\n". +'Submissions'.$showrecord.''."\n"; + $passed ++; + } else { + my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row'; + $badstudents .= ''.&mt('Bubblesheet').''.$scandata{$pid}.''.$last.''.$pid.''."\n". +''."\n". +''."\n". +'Submissions'.$record{$pid}.''."\n". +''."\n"; + $failed ++; + } + $numstudents ++; + } + } + } + $r->print('

    '.&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for [quant,_1,student] ([_2] scantron lines/student).',$numstudents,$env{'form.scantron_maxbubble'}).'

    '); + $r->print('

    '.&mt('Exact matches for [quant,_1,student].',$passed).'
    '.&mt('Discrepancies detected for [quant,_1,student].',$failed).'

    '); + if ($passed) { + $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'

    '); + $r->print(&Apache::loncommon::start_data_table()."\n". + &Apache::loncommon::start_data_table_header_row()."\n". + ''.&mt('Source').''.&mt('Bubble records').''.&mt('Name').''.&mt('ID').''. + &Apache::loncommon::end_data_table_header_row()."\n". + $okstudents."\n". + &Apache::loncommon::end_data_table().'
    '); + } + if ($failed) { + $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'

    '); + $r->print(&Apache::loncommon::start_data_table()."\n". + &Apache::loncommon::start_data_table_header_row()."\n". + ''.&mt('Source').''.&mt('Bubble records').''.&mt('Name').''.&mt('ID').''. + &Apache::loncommon::end_data_table_header_row()."\n". + $badstudents."\n". + &Apache::loncommon::end_data_table()).'
    '. + &mt('Differences can occur if submissions were modified using manual grading after a bubblesheet grading pass.').'
    '.&mt('If unexpected discrepancies were detected, it is recommended that you inspect the original bubblesheets.'); + } + $r->print('

    '.$grading_menu_button); + return; +} + +sub verify_scantron_grading { + my ($resource,$domain,$username,$cid,$counter,$scandata,$partids, + $scantron_config,$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) ne 'ARRAY'); + foreach my $part_id (@{$partids}) { + $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}) { + 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; +} -=cut #-------- end of section for handling grading scantron forms ------- # @@ -6845,7 +8401,7 @@ sub show_grading_menu_form { ''."\n". ''."\n". ''."\n". - ''."\n". + ''."\n". ''."\n"; return $result; } @@ -6862,13 +8418,136 @@ sub savedState { return \%savedState; } -#--- Displays the main menu page ------- -sub gradingmenu { +sub grading_menu { my ($request) = @_; my ($symb)=&get_symb($request); if (!$symb) {return '';} my $probTitle = &Apache::lonnet::gettitle($symb); + my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle); + + $request->print($table); + my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb), + 'handgrade'=>$hdgrade, + 'probTitle'=>$probTitle, + 'command'=>'submit_options', + 'saveState'=>"", + 'gradingMenu'=>1, + 'showgrading'=>"yes"); + + my $url1 = &Apache::lonhtmlcommon::build_url('grades/',\%fields); + + $fields{'command'} = 'csvform'; + my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields); + + $fields{'command'} = 'processclicker'; + my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields); + + $fields{'command'} = 'scantron_selectphase'; + my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields); + + my @menu = ({ categorytitle=>'Course Grading', + items =>[ + { linktext => 'Manual Grading/View Submissions', + url => $url1, + permission => 'F', + icon => 'edit-find-replace.png', + linktitle => 'Start the process of hand grading submissions.' + }, + { linktext => 'Upload Scores', + url => $url2, + permission => 'F', + icon => 'uploadscores.png', + linktitle => 'Specify a file containing the class scores for current resource.' + }, + { linktext => 'Process Clicker', + url => $url3, + permission => 'F', + icon => 'addClickerInfoFile.png', + linktitle => 'Specify a file containing the clicker information for this resource.' + }, + { linktext => 'Grade/Manage/Review Bubblesheet Forms', + url => $url4, + permission => 'F', + icon => 'stat.png', + linktitle => 'Grade scantron exams, upload/download scantron data files, and review previously graded scantron exams.' + } + ] + }); + + #$fields{'command'} = 'verify'; + #$url = &Apache::lonhtmlcommon::build_url('grades/',\%fields); + # + # Create the menu + my $Str; + # $Str .= '

    '.&mt('Please select a grading task').'

    '; + $Str .= '
    '; + $Str .= ''. + ''."\n". + ''."\n". + ''."\n". + ''."\n". + ''."\n". + ''."\n"; + $Str .= Apache::lonhtmlcommon::generate_menu(@menu); + #$menudata->{'jscript'} + $Str .='
    '. + &Apache::lonnet::recprefix($env{'request.course.id'}). + '-'; + + $Str .="
    \n"; + my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box."); + $request->print(< + function checkChoice(formname,val,cmdx) { + if (val <= 2) { + var cmd = radioSelection(formname.radioChoice); + var cmdsave = cmd; + } else { + cmd = cmdx; + cmdsave = 'submission'; + } + formname.command.value = cmd; + if (val < 5) formname.submit(); + if (val == 5) { + if (!checkReceiptNo(formname,'notOK')) { + return false; + } else { + formname.submit(); + } + } + } + + function checkReceiptNo(formname,nospace) { + var receiptNo = formname.receipt.value; + var checkOpt = false; + if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;} + if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;} + if (checkOpt) { + alert("$receiptalert"); + 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); + + my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box."); $request->print(< function checkChoice(formname,val,cmdx) { @@ -6896,7 +8575,7 @@ sub gradingmenu { if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;} if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;} if (checkOpt) { - alert("Please enter a receipt number given by a student in the receipt box."); + alert("$receiptalert"); formname.receipt.value = ""; formname.receipt.focus(); return false; @@ -6906,9 +8585,8 @@ sub gradingmenu { GRADINGMENUJS &commonJSfunctions($request); - my $result='

     Manual Grading/View Submission

    '; my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle); - $result.=$table; + my $result; my (undef,$sections) = &getclasslist('all','0'); my $savedState = &savedState(); my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'}); @@ -6916,6 +8594,15 @@ GRADINGMENUJS my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'}); my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'}); + # Preselect sections + my $selsec=""; + if (ref($sections)) { + foreach my $section (sort(@$sections)) { + $selsec.=''."\n"; + } + } + $result.='
    '."\n". ''."\n". ''."\n". @@ -6925,88 +8612,94 @@ GRADINGMENUJS ''."\n". ''."\n"; - $result.='
    '."\n". - ''."\n". - '
    '."\n". - ' Select a Grading/Viewing Option
    '."\n"; - - $result.=''; - $result.=''; +
    + +
    + + '.&mt('Sections').' + +   '; + $result.=' +
    + +
    + + '.&mt('Groups').' + + '.&Apache::lonstatistics::GroupSelect('group','multiple',5).' +
    + +
    + + '.&mt('Access Status').' + + '.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,5,undef,'mult').' +
    + +
    + + '.&mt('Submission Status').' + + +
    + +
    - $result.=''."\n"; - - $result.=''."\n"; - - $result.=''."\n"; - - $result.='
    '."\n". - ' '.&mt('Select Section').':   '; + $result.=' +

    + '.&mt('Grade Current Resource').' +

    +
    + '.$table.' +
    - $result.=&mt('Student Status').':'.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,undef); - - $result.='
    '. - '
    '. - '

    '. - ''. - '
    '."\n"; - - $result.='    		'; - - $result.=''; - $result.=''."\n"; - - $result.=''."\n"; - - $result.=''."\n"; - - if ((&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) && ($symb)) { - $result.=''."\n"; - } - $result.=''."\n"; - $result.=''."\n"; - - $result.='
    '. - ''. - ' '.&mt('scores from file').'
    '. - ''. - ' '.&mt('clicker file').'
    '. - ' scantron forms
    '. - ''. - ' '.&mt('receipt').': '. - &Apache::lonnet::recprefix($env{'request.course.id'}). - '-'. - '
    '. - ' access times.
    '. - ' saved CODEs.
    '."\n". - '
    '."\n". - '
    '."\n"; +
    +
    +
    + +
    +
    + +
    +
    + +
    +
    + + +

    + '.&mt('Grade Complete Folder for One Student').' +

    +
    +
    + +
    +
    + +
    +
    + '; + $result .= &show_grading_menu_form($symb); return $result; } @@ -7040,9 +8733,10 @@ sub gather_clicker_ids { # 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 = @@ -7102,8 +8796,8 @@ sub process_clicker { $result.=$table; $result.='
    '."\n"; $result.=''."\n"; + $result.=' '.&mt('Specify a file containing the clicker information for this resource.'). + ''."\n"; $result.='
    '."\n"; - $result.=' '.&mt('Specify a file containing the clicker information for this resource'). - '.
    '."\n"; # Attempt to restore parameters from last session, set defaults if not present my %Saveable_Parameters=&clicker_grading_parameters(); @@ -7115,9 +8809,9 @@ sub process_clicker { if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; } my %checked; - foreach my $gradingmechanism ('attendance','personnel','specific') { + foreach my $gradingmechanism ('attendance','personnel','specific','given') { if ($env{'form.gradingmechanism'} eq $gradingmechanism) { - $checked{$gradingmechanism}="checked='checked'"; + $checked{$gradingmechanism}=' checked="checked"'; } } @@ -7126,6 +8820,8 @@ sub process_clicker { 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 $given=&mt("Correctness determined from given list of answers").' '. + '('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')'; 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', @@ -7179,10 +8875,13 @@ function sanitycheck() {
    -
    -
    -
    +
    +
    +
    +
    +
        +

    @@ -7209,6 +8908,19 @@ sub process_clicker_file { $result.=''.&mt('You need to specify a clicker ID for the correct answer').''; return $result.&show_grading_menu_form($symb); } + if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) { + $result.=''.&mt('You need to specify the correct answer').''; + return $result.&show_grading_menu_form($symb); + } + my $foundgiven=0; + if ($env{'form.gradingmechanism'} eq 'given') { + $env{'form.givenanswer'}=~s/^\s*//gs; + $env{'form.givenanswer'}=~s/\s*$//gs; + $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-]+/\,/g; + $env{'form.givenanswer'}=uc($env{'form.givenanswer'}); + my @answers=split(/\,/,$env{'form.givenanswer'}); + $foundgiven=$#answers+1; + } my %clicker_ids=&gather_clicker_ids(); my %correct_ids; if ($env{'form.gradingmechanism'} eq 'personnel') { @@ -7227,6 +8939,8 @@ sub process_clicker_file { } if ($env{'form.gradingmechanism'} eq 'attendance') { $result.=&mt('Score based on attendance only'); + } elsif ($env{'form.gradingmechanism'} eq 'given') { + $result.=&mt('Score based on [_1] ([_2] answers)',''.$env{'form.givenanswer'}.'',$foundgiven); } else { my $number=0; $result.='

    '.&mt('Correctness determined by the following IDs').''; @@ -7272,6 +8986,9 @@ sub process_clicker_file { ENDHEADER + if ($env{'form.gradingmechanism'} eq 'given') { + $result.=''; + } my %responses; my @questiontitles; my $errormsg=''; @@ -7287,6 +9004,10 @@ ENDHEADER &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses', $env{'form.pcorrect'},$env{'form.pincorrect'}). '
    '; + if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) { + $result.=''.&mt('Number of given answers does not agree with number of questions in file.').''; + return $result.&show_grading_menu_form($symb); + } # Remember Question Titles # FIXME: Possibly need delimiter other than ":" for (my $i=0;$i<$number;$i++) { @@ -7303,8 +9024,21 @@ ENDHEADER $result.="\n".''; $correct_count++; } elsif ($clicker_ids{$id}) { - $result.="\n".''; - $student_count++; + if ($clicker_ids{$id}=~/\,/) { +# More than one user with the same clicker! + $result.="\n

    ".&mt('Clicker registered more than once').": ".$id."
    "; + $result.="\n".''. + "'; + $unknown_count++; + } else { +# Good: found one and only one user with the right clicker + $result.="\n".''; + $student_count++; + } } else { $result.="\n
    ".&mt('Unregistered Clicker')." ".$id."
    "; $result.="\n".''. @@ -7317,7 +9051,7 @@ ENDHEADER } $result.='
    '. &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count); - if ($env{'form.gradingmechanism'} ne 'attendance') { + if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) { if ($correct_count==0) { $errormsg.="Found no correct answers answers for grading!"; } elsif ($correct_count>1) { @@ -7388,7 +9122,7 @@ sub interwrite_eval { $id=~s/[\-\:]//g; $idresponses{$id}[$number]=$entries[6]; } - foreach my $id (keys %idresponses) { + foreach my $id (keys(%idresponses)) { $$responses{$id}=join(',',@{$idresponses{$id}}); $$responses{$id}=~s/^\s*\,//; } @@ -7400,7 +9134,11 @@ sub assign_clicker_grades { my ($symb)=&get_symb($r); if (!$symb) {return '';} # See which part we are saving to - my ($partlist,$handgrade,$responseType) = &response_type($symb); + my $res_error; + my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error); + if ($res_error) { + return &navmap_errormsg(); + } # FIXME: This should probably look for the first handgradeable part my $part=$$partlist[0]; # Start screen output @@ -7455,15 +9193,22 @@ ENDHEADER my $id=$1; if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) { $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id}; + } elsif ($env{'form.multi'.$id}) { + $user=$env{'form.multi'.$id}; } } if ($user) { my @answer=split(/\,/,$env{$key}); my $sum=0; + my $realnumber=$number; for (my $i=0;$i<$number;$i++) { - if ($answer[$i]) { + if ($correct[$i] eq '-') { + $realnumber--; + } elsif ($answer[$i]) { if ($gradingmechanism eq 'attendance') { $sum+=$pcorrect; + } elsif ($correct[$i] eq '*') { + $sum+=$pcorrect; } else { if ($answer[$i] eq $correct[$i]) { $sum+=$pcorrect; @@ -7473,7 +9218,7 @@ ENDHEADER } } } - my $ave=$sum/(100*$number); + my $ave=$sum/(100*$realnumber); # Store my ($username,$domain)=split(/\:/,$user); my %grades=(); @@ -7491,16 +9236,22 @@ ENDHEADER } } # We are done - $result.='
    '.&mt('Successfully stored grades for [_1] student(s).',$storecount). + $result.='
    '.&mt('Successfully stored grades for [quant,_1,student].',$storecount). '
    '."\n". '


    '."\n"; return $result.&show_grading_menu_form($symb); } +sub navmap_errormsg { + return '
    '. + &mt('An error occurred retrieving information about resources in the course.').'
    '. + &mt('It is recommended that you [_1]re-initialize the course[_2] and then return to this grading page..','',''). + '
    '; +} + sub handler { my $request=$_[0]; - - &reset_perm(); + &reset_caches(); if ($env{'browser.mathml'}) { &Apache::loncommon::content_type($request,'text/xml'); } else { @@ -7512,10 +9263,15 @@ sub handler { my $symb=&get_symb($request,1); my @commands=&Apache::loncommon::get_env_multiple('form.command'); my $command=$commands[0]; + if ($#commands > 0) { &Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands)); } - $request->print(&Apache::loncommon::start_page('Grading')); + + $ssi_error = 0; + my $brcrum = [{href=>"/adm/grades",text=>"Grading"}]; + $request->print(&Apache::loncommon::start_page('Grading',undef, + {'bread_crumbs' => $brcrum})); if ($symb eq '' && $command eq '') { if ($env{'user.adv'}) { if (($env{'form.codeone'}) && ($env{'form.codetwo'}) && @@ -7527,7 +9283,7 @@ sub handler { if ($tsymb) { my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb); if (&Apache::lonnet::allowed('mgr',$tcrsid)) { - $request->print(&Apache::lonnet::ssi_body('/res/'.$url, + $request->print(&ssi_with_retries('/res/'.$url, $ssi_retries, ('grade_username' => $tuname, 'grade_domain' => $tudom, 'grade_courseid' => $tcrsid, @@ -7555,7 +9311,9 @@ sub handler { } elsif ($command eq 'processGroup' && $perm{'vgr'}) { &processGroup($request); } elsif ($command eq 'gradingmenu' && $perm{'vgr'}) { - $request->print(&gradingmenu($request)); + $request->print(&grading_menu($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' && $perm{'mgr'}) { @@ -7608,14 +9366,191 @@ sub handler { } elsif ($command eq 'scantron_download' && &Apache::lonnet::allowed('usc',$env{'request.course.id'})) { $request->print(&scantron_download_scantron_data($request)); + } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) { + $request->print(&checkscantron_results($request)); } elsif ($command) { - $request->print("Access Denied ($command)"); + $request->print('

    '.&mt('Access Denied ([_1])',$command).'

    '); } } + if ($ssi_error) { + &ssi_print_error($request); + } $request->print(&Apache::loncommon::end_page()); + &reset_caches(); return ''; } 1; __END__; + + +=head1 NAME + +Apache::grades + +=head1 SYNOPSIS + +Handles the viewing of grades. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 OVERVIEW + +Do an ssi with retries: +While I'd love to factor out this with the vesrion in lonprintout, +that would either require a data coupling between modules, which I refuse to perpetuate (there's quite enough of that already), or would require the invention of another infrastructure +I'm not quite ready to invent (e.g. an ssi_with_retry object). + +At least the logic that drives this has been pulled out into loncommon. + + + +ssi_with_retries - Does the server side include of a resource. + if the ssi call returns an error we'll retry it up to + the number of times requested by the caller. + If we still have a proble, no text is appended to the + output and we set some global variables. + to indicate to the caller an SSI error occurred. + All of this is supposed to deal with the issues described + in LonCAPA BZ 5631 see: + http://bugs.lon-capa.org/show_bug.cgi?id=5631 + by informing the user that this happened. + +Parameters: + resource - The resource to include. This is passed directly, without + interpretation to lonnet::ssi. + form - The form hash parameters that guide the interpretation of the resource + + retries - Number of retries allowed before giving up completely. +Returns: + On success, returns the rendered resource identified by the resource parameter. +Side Effects: + The following global variables can be set: + ssi_error - If an unrecoverable error occurred this becomes true. + It is up to the caller to initialize this to false + if desired. + ssi_error_resource - If an unrecoverable error occurred, this is the value + of the resource that could not be rendered by the ssi + call. + ssi_error_message - The error string fetched from the ssi response + in the event of an error. + + +=head1 HANDLER SUBROUTINE + +ssi_with_retries() + +=head1 SUBROUTINES + +=over + +=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 + +=item scantron_get_maxbubble() : + + Arguments: + $nav_error - Reference to scalar which is a flag to indicate a + failure to retrieve a navmap object. + if $nav_error is set to 1 by scantron_get_maxbubble(), the + calling routine should trap the error condition and display the warning + found in &navmap_errormsg(). + + 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'}, + $env{'form.scantron.first_bubble_line.n'} and + $env{"form.scantron.sub_bubblelines.n"} + which are the total number of bubble, lines, the number of bubble + lines for response n and number of the first bubble line for response n, + and a comma separated list of numbers of bubble lines for sub-questions + (for optionresponse, matchresponse, and rankresponse items), for response n. + + +=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. + +=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. + +=item scantron_upload_scantron_data() : + + Creates the screen for adding a new bubble sheet data file to a course. + +=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. + +=item valid_file() : + + Validates that the requested bubble data file exists in the course. + +=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. + +=item scantron_validate_ID() : + + Validates all scanlines in the selected file to not have any + invalid or underspecified student/employee IDs + +=item navmap_errormsg() : + + Returns HTML mark-up inside a
    with a link to re-initialize the course. + Should be called whenever the request to instantiate a navmap object fails. + +=back + +=cut