Annotation of loncom/interface/spreadsheet/assesscalc.pm, revision 1.61

1.1       matthew     1: #
1.61    ! raeburn     2: # $Id: assesscalc.pm,v 1.60 2014/02/11 19:11:30 bisitz Exp $
1.1       matthew     3: #
                      4: # Copyright Michigan State University Board of Trustees
                      5: #
                      6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      7: #
                      8: # LON-CAPA is free software; you can redistribute it and/or modify
                      9: # it under the terms of the GNU General Public License as published by
                     10: # the Free Software Foundation; either version 2 of the License, or
                     11: # (at your option) any later version.
                     12: #
                     13: # LON-CAPA is distributed in the hope that it will be useful,
                     14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     16: # GNU General Public License for more details.
                     17: #
                     18: # You should have received a copy of the GNU General Public License
                     19: # along with LON-CAPA; if not, write to the Free Software
                     20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     21: #
                     22: # /home/httpd/html/adm/gpl.txt
                     23: #
                     24: # http://www.lon-capa.org/
                     25: #
                     26: # The LearningOnline Network with CAPA
                     27: # Spreadsheet/Grades Display Handler
                     28: #
                     29: # POD required stuff:
                     30: 
                     31: =head1 NAME
                     32: 
                     33: assesscalc
                     34: 
                     35: =head1 SYNOPSIS
                     36: 
                     37: =head1 DESCRIPTION
                     38: 
                     39: =cut
                     40: 
                     41: ###################################################
                     42: ###                 AssessSheet                 ###
                     43: ###################################################
                     44: package Apache::assesscalc;
                     45: 
                     46: use strict;
1.18      matthew    47: use warnings FATAL=>'all';
                     48: no warnings 'uninitialized';
1.1       matthew    49: use Apache::Constants qw(:common :http);
                     50: use Apache::lonnet;
1.2       matthew    51: use Apache::loncommon;
1.1       matthew    52: use Apache::Spreadsheet;
1.25      matthew    53: use Apache::loncoursedata();
1.1       matthew    54: use HTML::Entities();
                     55: use Spreadsheet::WriteExcel;
                     56: use GDBM_File;
                     57: use Time::HiRes;
1.26      www        58: use Apache::lonlocal;
1.1       matthew    59: 
                     60: @Apache::assesscalc::ISA = ('Apache::Spreadsheet');
                     61: 
                     62: ########################################################
                     63: ########################################################
                     64: 
                     65: =pod
                     66: 
                     67: =head2 Package Variables
                     68: 
                     69: =over 4
                     70: 
                     71: =item %Exportrows
                     72: 
                     73: =item $current_name
                     74: 
                     75: =item $current_domain
                     76: 
                     77: =item $current_course
                     78: 
                     79: =item %parmhash
                     80: 
                     81: =item %nice_parameter_name
                     82: 
                     83: =item %useropt
                     84: 
                     85: =item %courseopt
                     86: 
                     87: =back 
                     88: 
                     89: =cut
                     90: 
                     91: ########################################################
                     92: ########################################################
                     93: 
                     94: my %Exportrows;
1.22      matthew    95: my %newExportrows;
1.1       matthew    96: 
                     97: my $current_name;
                     98: my $current_domain;
                     99: my $current_course;
                    100: 
                    101: my %parmhash;
                    102: my %nice_parameter_name;
                    103: 
                    104: my %useropt;
1.22      matthew   105: my %userdata;
1.1       matthew   106: my %courseopt;
1.37      matthew   107: my $navmap;
1.1       matthew   108: 
                    109: ########################################################
                    110: ########################################################
                    111: 
                    112: =pod
                    113: 
                    114: =head2 Package Subroutines
                    115: 
                    116: =item &clear_package()
                    117: 
1.22      matthew   118: Reset all package variables and clean up caches.
1.1       matthew   119: 
                    120: =cut
                    121: 
                    122: ########################################################
                    123: ########################################################
                    124: sub clear_package {
1.22      matthew   125:     if (defined($current_name) &&
                    126:         defined($current_domain) &&
                    127:         defined($current_course) &&
1.39      albertel  128:         $current_course eq $env{'request.course.id'} &&
1.22      matthew   129:         %newExportrows) {
                    130:         &save_cached_export_rows($current_name,$current_domain);
                    131:     }
1.1       matthew   132:     undef(%Exportrows);
1.22      matthew   133:     undef(%newExportrows);
1.1       matthew   134:     undef($current_name);
                    135:     undef($current_domain);
                    136:     undef($current_course);
                    137:     undef(%useropt);
1.22      matthew   138:     undef(%userdata);
1.1       matthew   139:     undef(%courseopt);
1.37      matthew   140:     undef($navmap);
1.1       matthew   141: }
                    142: 
1.22      matthew   143: sub save_cached_export_rows {
                    144:     my ($sname,$sdomain) = @_;
                    145:     my $result = &Apache::lonnet::put
1.39      albertel  146:         ('nohist_calculatedsheets_'.$env{'request.course.id'},
1.22      matthew   147:          $newExportrows{$sname.':'.$sdomain},
                    148:          $sdomain,$sname);
                    149:     delete($newExportrows{$sname.':'.$sdomain});
                    150: }
                    151: 
1.11      matthew   152: sub initialize {
1.37      matthew   153:     my ($in_navmap) = @_;
1.11      matthew   154:     &clear_package();
1.37      matthew   155:     $navmap = $in_navmap;
                    156:     if (! defined($navmap)) {
                    157:         $navmap = Apache::lonnavmaps::navmap->new();
                    158:     }
1.59      raeburn   159:     if ((!defined($navmap)) || (!ref($navmap))) {
1.37      matthew   160:         &Apache::lonnet::logthis('assesscalc:Can not open Coursemap');
                    161:     }
1.25      matthew   162:     &Apache::loncoursedata::clear_internal_caches();
1.11      matthew   163: }
                    164: 
1.1       matthew   165: ########################################################
                    166: ########################################################
                    167: 
                    168: =pod
                    169: 
                    170: =item &initialize_package()
                    171: 
                    172: =cut
                    173: 
                    174: ########################################################
                    175: ########################################################
                    176: sub initialize_package {
1.57      albertel  177:     my ($sname,$sdomain,$in_navmap,$calling_sheet) = @_;
1.1       matthew   178:     $current_name   = $sname;
                    179:     $current_domain = $sdomain;
1.37      matthew   180:     $navmap = $in_navmap;
1.21      matthew   181:     undef(%useropt);
1.22      matthew   182:     undef(%userdata);
1.39      albertel  183:     if ($current_course ne $env{'request.course.id'}) {
                    184:         $current_course = $env{'request.course.id'};
1.13      matthew   185:         undef(%courseopt);
                    186:     }
1.1       matthew   187:     &load_cached_export_rows();
1.57      albertel  188:     &load_parameter_caches($calling_sheet);
1.25      matthew   189:     &Apache::loncoursedata::clear_internal_caches();
1.1       matthew   190: }
                    191: 
1.22      matthew   192: 
1.1       matthew   193: ########################################################
                    194: ########################################################
                    195: 
                    196: =pod
                    197: 
                    198: =item &load_parameter_caches()
                    199: 
                    200: =cut
                    201: 
                    202: ########################################################
                    203: ########################################################
                    204: sub load_parameter_caches {
1.57      albertel  205:     my ($calling_sheet) = @_;
1.1       matthew   206:     my $userprefix = $current_name.':'.$current_domain.'_';
                    207:     $userprefix =~ s/:/_/g;
                    208:     #
                    209:     # Course Parameters Cache
                    210:     if (! %courseopt) {
1.39      albertel  211:         $current_course = $env{'request.course.id'};
1.1       matthew   212:         undef(%courseopt);
                    213:         if (! defined($current_name) || ! defined($current_domain)) {
                    214:             return;
                    215:         }
1.39      albertel  216:         my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
                    217:         my $id  = $env{'course.'.$env{'request.course.id'}.'.num'};
1.1       matthew   218:         my %Tmp = &Apache::lonnet::dump('resourcedata',$dom,$id);
                    219:         while (my ($name,$value) = each(%Tmp)) {
1.3       matthew   220:             $courseopt{$name}=$value;
1.1       matthew   221:         }
                    222:     }
                    223:     if (! %useropt) {
                    224:         my %Tmp = &Apache::lonnet::dump('resourcedata',
                    225:                                         $current_domain,$current_name);
                    226:         while (my ($name,$value) = each(%Tmp)) {
                    227:             if ($name =~ /^error: 2/ || $name =~ /no such file/) {
                    228:                 undef(%useropt);
                    229:                 last;
                    230:             }
                    231:             $useropt{$userprefix.$name}=$value;
                    232:         }
1.21      matthew   233:         $useropt{'loadtime'} = time;
1.1       matthew   234:     }
1.22      matthew   235:     if (! %userdata) {
                    236:         %userdata = &Apache::loncoursedata::get_current_state($current_name,
                    237:                                                               $current_domain);
1.57      albertel  238: 	my ($tmp) = %userdata;
                    239: 	if ($tmp =~ /^error:(.*)/) {
                    240: 	    $calling_sheet->set_calcerror($1);
                    241: 	}
1.22      matthew   242:         $userdata{'loadtime'} = time;
                    243:     }
                    244:     return;
1.1       matthew   245: }
                    246: 
                    247: ########################################################
                    248: ########################################################
                    249: 
                    250: =pod
                    251: 
                    252: =head2 assesscalc object methods
                    253: 
                    254: =cut
                    255: 
                    256: ########################################################
                    257: ########################################################
1.22      matthew   258: sub ensure_current_caches {
1.1       matthew   259:     my $self = shift;
1.19      matthew   260:     ##
                    261:     ## Check for a modified parameters
                    262:     ##
1.1       matthew   263:     if (! defined($current_course) || 
1.39      albertel  264:         $current_course ne $env{'request.course.id'} ) {
                    265:         $current_course = $env{'request.course.id'};
1.1       matthew   266:         undef(%courseopt); 
1.22      matthew   267:         undef(%useropt);
                    268:         undef(%userdata);
1.1       matthew   269:     }
1.19      matthew   270:     ##
                    271:     ## Check for new user
                    272:     ##
1.1       matthew   273:     if (! defined($current_name)   || $current_name ne $self->{'name'} ||
                    274:         ! defined($current_domain) || $current_domain ne $self->{'domain'}) {
                    275:         $current_domain = $self->{'domain'};
                    276:         $current_name   = $self->{'name'};
                    277:         undef(%useropt);
1.22      matthew   278:         undef(%userdata);
1.1       matthew   279:     }
1.57      albertel  280:     &load_parameter_caches($self);
1.1       matthew   281: }
                    282: 
                    283: ##################################################
                    284: ##################################################
                    285: 
                    286: =pod
                    287: 
                    288: =item &parmval()
                    289: 
                    290: Determine the value of a parameter.
                    291: 
                    292: Inputs: $what, the parameter needed, $symb, $uname, $udom, $csec 
                    293: 
                    294: Returns: The value of a parameter, or '' if none.
                    295: 
                    296: This function cascades through the possible levels searching for a value for
                    297: a parameter.  The levels are checked in the following order:
1.52      raeburn   298: user, course (at group, section level and course level), map, and 
                    299: lonnet::metadata.
1.1       matthew   300: This function uses %parmhash, which must be tied prior to calling it.
                    301: This function also requires %courseopt and %useropt to be initialized for
                    302: this user and course.
                    303: 
                    304: =cut
                    305: 
                    306: ##################################################
                    307: ##################################################
                    308: sub parmval {
                    309:     my $self = shift;
1.53      raeburn   310:     my ($what,$symb,$uname,$udom,$csec,$recurse,$mapname,$id,$fn,$groups)=@_;
                    311:     $uname  = $self->{'name'}     if (! defined($uname));
                    312:     $udom   = $self->{'domain'}   if (! defined($udom));
                    313:     $csec   = $self->{'section'}  if (! defined($csec));
                    314:     $groups = $self->{'groups'}   if (! defined($groups)); 
                    315:     $symb   = $self->{'symb'}     if (! defined($symb));
1.1       matthew   316:     #
                    317:     my $result='';
1.61    ! raeburn   318:     my @recurseup;
1.1       matthew   319:     #
                    320:     # This should be a 
1.44      albertel  321:     if (!defined($mapname) || !defined($id) || !defined($fn)) {
                    322: 	($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
1.55      albertel  323: 	$mapname = &Apache::lonnet::deversion($mapname);
1.44      albertel  324:     }
1.1       matthew   325:     # Cascading lookup scheme
                    326:     my $rwhat=$what;
                    327:     $what =~ s/^parameter\_//;
                    328:     $what =~ s/\_([^\_]+)$/\.$1/;
                    329:     #
                    330:     my $symbparm = $symb.'.'.$what;
1.61    ! raeburn   331:     my $recurseparm=$mapname.'___(rec).'.$what;
1.1       matthew   332:     my $mapparm  = $mapname.'___(all).'.$what;
1.3       matthew   333:     my $courseprefix = $self->{'cid'};
1.1       matthew   334:     my $usercourseprefix = $uname.'_'.$udom.'_'.$self->{'cid'};
                    335:     #
1.3       matthew   336:     my $seclevel  = $courseprefix.'.['.$csec.'].'.$what;
                    337:     my $seclevelr = $courseprefix.'.['.$csec.'].'.$symbparm;
1.61    ! raeburn   338:     my $secleveli = $courseprefix.'.['.$csec.'].'.$recurseparm;
1.3       matthew   339:     my $seclevelm = $courseprefix.'.['.$csec.'].'.$mapparm;
                    340:     #
                    341:     my $courselevel  = $courseprefix.'.'.$what;
                    342:     my $courselevelr = $courseprefix.'.'.$symbparm;
1.61    ! raeburn   343:     my $courseleveli = $courseprefix.'.'.$recurseparm;
1.3       matthew   344:     my $courselevelm = $courseprefix.'.'.$mapparm;
                    345:     #
                    346:     my $ucourselevel  = $usercourseprefix.'.'.$what;
                    347:     my $ucourselevelr = $usercourseprefix.'.'.$symbparm;
1.61    ! raeburn   348:     my $ucourseleveli = $usercourseprefix.'.'.$recurseparm;  
1.3       matthew   349:     my $ucourselevelm = $usercourseprefix.'.'.$mapparm;
1.52      raeburn   350:     # check user
1.1       matthew   351:     if (defined($uname)) {
1.3       matthew   352:         return $useropt{$ucourselevelr} if (defined($useropt{$ucourselevelr}));
                    353:         return $useropt{$ucourselevelm} if (defined($useropt{$ucourselevelm}));
1.61    ! raeburn   354:         return $useropt{$ucourseleveli} if (defined($useropt{$ucourseleveli}));
        !           355:         unless (@recurseup > 0) {
        !           356:             @recurseup = &Apache::lonnet::get_map_hierarchy($mapname);
        !           357:         }
        !           358:         foreach my $item (@recurseup) {
        !           359:             my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
        !           360:             last if (defined($useropt{$norecursechk}));
        !           361:             my $recursechk=$usercourseprefix.'.'.$item.'___(rec).'.$what;
        !           362:             return $useropt{$recursechk} if (defined($useropt{$recursechk}));
        !           363:         }
1.3       matthew   364:         return $useropt{$ucourselevel}  if (defined($useropt{$ucourselevel}));
1.1       matthew   365:     }
1.53      raeburn   366:     # check groups
1.54      raeburn   367:     if (defined($groups) && ref($groups) eq 'ARRAY') {
1.53      raeburn   368:         foreach my $group (@{$groups}) {
1.61    ! raeburn   369:             foreach my $level ($symbparm,$mapparm,$recurseparm,$what) {
1.53      raeburn   370:                 my $item = $courseprefix.'.['.$group.'].'.$level;
1.61    ! raeburn   371:                 if ($level eq $what) {
        !           372:                     unless (@recurseup > 0) {
        !           373:                         @recurseup = &Apache::lonnet::get_map_hierarchy($mapname);
        !           374:                     }
        !           375:                     foreach my $item (@recurseup) {
        !           376:                         my $norecursechk=$courseprefix.'.['.$group.'].'.$item.'___(all).'.$what;
        !           377:                         last if (defined($courseopt{$norecursechk}));
        !           378:                         my $recursechk=$courseprefix.'.['.$group.'].'.$item.'___(rec).'.$what;
        !           379:                         return $courseopt{$recursechk} if (defined($courseopt{$recursechk}));
        !           380:                     }
        !           381:                 }
1.53      raeburn   382:                 if (defined($courseopt{$item})) {
                    383:                     return $courseopt{$item};
                    384:                 }
                    385:             }
                    386:         }
1.52      raeburn   387:     }
1.1       matthew   388:     # check section
                    389:     if (defined($csec)) {
                    390:         return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
                    391:         return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
1.61    ! raeburn   392:         return $courseopt{$secleveli} if (defined($courseopt{$secleveli}));
        !           393:         unless (@recurseup > 0) {
        !           394:             @recurseup = &Apache::lonnet::get_map_hierarchy($mapname);
        !           395:         }
        !           396:         foreach my $item (@recurseup) {
        !           397:             my $norecursechk=$courseprefix.'.['.$csec.'].'.$item.'___(all).'.$what;
        !           398:             last if (defined($courseopt{$norecursechk}));
        !           399:             my $recursechk=$courseprefix.'.['.$csec.'].'.$item.'___(rec).'.$what;
        !           400:             return $courseopt{$recursechk} if (defined($courseopt{$secleveli}));
        !           401:         }
1.1       matthew   402:         return $courseopt{$seclevel}  if (defined($courseopt{$seclevel}));
                    403:     }
                    404:     #
                    405:     # check course
                    406:     return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
                    407:     # check map parms
                    408:     my $thisparm = $parmhash{$symbparm};
                    409:     return $thisparm if (defined($thisparm));
                    410:     # check default
                    411:     $thisparm = &Apache::lonnet::metadata($fn,$rwhat.'.default');
                    412:     return $thisparm if (defined($thisparm));
1.36      albertel  413:     # check more course
                    414:     return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
1.61    ! raeburn   415:     return $courseopt{$courseleveli} if (defined($courseopt{$courseleveli}));
        !           416:     unless (@recurseup > 0) {
        !           417:         @recurseup = &Apache::lonnet::get_map_hierarchy($mapname);
        !           418:     }
        !           419:     foreach my $item (@recurseup) {
        !           420:         my $norecursechk=$courseprefix.'.'.$item.'___(all).'.$what;
        !           421:         last if (defined($courseopt{$norecursechk}));
        !           422:         my $recursechk=$courseprefix.'.'.$item.'___(rec).'.$what;
        !           423:         return $courseopt{$recursechk} if (defined($courseopt{$recursechk}));
        !           424:     }
1.36      albertel  425:     return $courseopt{$courselevel}  if (defined($courseopt{$courselevel}));
                    426: 
1.1       matthew   427:     # Cascade Up
                    428:     my $space=$what;
1.35      albertel  429:     $space=~s/\.[^._]+$//;
1.1       matthew   430:     if ($space ne '0') {
                    431: 	my @parts=split(/_/,$space);
                    432: 	my $id=pop(@parts);
                    433: 	my $part=join('_',@parts);
                    434: 	if ($part eq '') { $part='0'; }
                    435: 	my $newwhat=$rwhat;
                    436: 	$newwhat=~s/\Q$space\E/$part/;
1.44      albertel  437: 	my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1,
1.53      raeburn   438: 				       $mapname,$id,$fn,$groups);
1.1       matthew   439: 	if (defined($partgeneral)) { return $partgeneral; }
                    440:     }
1.17      albertel  441:     if ($recurse) { return undef; }
                    442:     my $pack_def=&Apache::lonnet::packages_tab_default($fn,'resource.'.$what);
                    443:     if (defined($pack_def)) { return $pack_def; }
1.1       matthew   444:     #nothing defined
                    445:     return '';
                    446: }
                    447: 
1.8       matthew   448: sub get_html_title {
                    449:     my $self = shift;
1.29      matthew   450:     my ($assess_title,$name,$time) = $self->get_full_title();
1.8       matthew   451:     my $title = '<h1>'.$assess_title.'</h1>'.
                    452:         '<h2>'.$name.', '.
                    453:         &Apache::loncommon::aboutmewrapper
                    454:                          ($self->{'name'}.'@'.$self->{'domain'},
                    455:                           $self->{'name'},$self->{'domain'});
                    456:     $title .= '<h3>'.$time.'</h3>';
                    457:     return $title;
                    458: }
                    459: 
1.1       matthew   460: sub get_title {
                    461:     my $self = shift;
1.16      matthew   462:     if (($self->{'symb'} eq '_feedback') ||
                    463:         ($self->{'symb'} eq '_evaluation') ||
                    464:         ($self->{'symb'} eq '_discussion') ||
                    465:         ($self->{'symb'} eq '_tutoring')) {
                    466:         my $assess_title = ucfirst($self->{'symb'});
1.8       matthew   467:         $assess_title =~ s/^_//;
1.29      matthew   468:         return $assess_title;
1.1       matthew   469:     } else {
1.29      matthew   470:         return &Apache::lonnet::gettitle($self->{'symb'});
1.1       matthew   471:     }
1.29      matthew   472: }
                    473: 
                    474: sub get_full_title {
                    475:     my $self = shift;
                    476:     my @title = ($self->get_title());
1.2       matthew   477:     # Look up the users identifying information
                    478:     # Get the users information
1.34      albertel  479:     my $name = &Apache::loncommon::plainname($self->{'name'},
                    480: 					     $self->{'domain'});
1.8       matthew   481:     push (@title,$name);
1.26      www       482:     push (@title,&Apache::lonlocal::locallocaltime(time));
1.8       matthew   483:     return @title;
1.1       matthew   484: }
                    485: 
                    486: sub parent_link {
                    487:     my $self = shift;
                    488:     my $link .= '<p><a href="/adm/studentcalc?'.
                    489:         'sname='.$self->{'name'}.
                    490:             '&sdomain='.$self->{'domain'}.'">'.
1.26      www       491:                 &mt('Student level sheet').'</a></p>'."\n";
1.1       matthew   492:     return $link;
                    493: }
                    494: 
                    495: sub outsheet_html {
                    496:     my $self = shift;
                    497:     my ($r) = @_;
1.29      matthew   498:     ####################################
                    499:     # Report any calculation errors    #
                    500:     ####################################
                    501:     $r->print($self->html_report_error());
1.1       matthew   502:     ###################################
                    503:     # Determine table structure
                    504:     ###################################
1.14      matthew   505:     my $importcolor = '#FFFFFF';
1.15      matthew   506:     my $exportcolor = '#FFFFAA';
1.1       matthew   507:     my $num_uneditable = 1;
                    508:     my $num_left = 52-$num_uneditable;
1.26      www       509:     my %lt=&Apache::lonlocal::texthash(
                    510: 				       'as' => 'Assessment',
                    511: 				       'ca' => 'Calculations',
                    512: 				       );
1.1       matthew   513:     my $tableheader =<<"END";
                    514: <table border="2">
                    515: <tr>
1.26      www       516:   <th colspan="2" rowspan="2"><font size="+2">$lt{'as'}</font></th>
1.14      matthew   517:   <td bgcolor="$importcolor" colspan="$num_uneditable">&nbsp;</td>
1.1       matthew   518:   <td colspan="$num_left">
1.26      www       519:       <b><font size="+1">$lt{'ca'}</font></b></td>
1.1       matthew   520: </tr><tr>
                    521: END
                    522:     my $label_num = 0;
                    523:     foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
                    524:         if ($label_num<$num_uneditable) { 
1.14      matthew   525:             $tableheader .= '<td bgcolor="'.$importcolor.'">';
1.1       matthew   526:         } else {
                    527:             $tableheader .= '<td>';
                    528:         }
                    529:         $tableheader .= "<b><font size=+1>$_</font></b></td>";
                    530:         $label_num++;
                    531:     }
                    532:     $tableheader.="</tr>\n";
                    533:     #
                    534:     $r->print($tableheader);
                    535:     #
                    536:     # Print out template row
1.60      bisitz    537:     $r->print('<tr><td>'.&mt('Template').'</td><td>&nbsp;</td>'.
1.14      matthew   538: 	      $self->html_template_row($num_uneditable,$importcolor).
                    539:               "</tr>\n");
1.1       matthew   540:     #
                    541:     # Print out summary/export row
1.60      bisitz    542:     $r->print('<tr><td>'.&mt('Export').'</td><td>0</td>'.
1.14      matthew   543: 	      $self->html_export_row($exportcolor)."</tr>\n");
1.1       matthew   544:     #
                    545:     # Prepare to output rows
1.60      bisitz    546:     $tableheader =
                    547:         '<table border="2">'.
                    548:         '<tr><th>'.&mt('Row').'</th>'.
                    549:         '<th>'.&mt('Item').'</th>';
1.1       matthew   550:     foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
                    551: 	if ($label_num<$num_uneditable) { 
1.14      matthew   552:             $tableheader.='<th bgcolor="'.$importcolor.'">';
1.1       matthew   553:         } else {
                    554:             $tableheader.='<th>';
                    555:         }
                    556:         $tableheader.="<b><font size=+1>$_</font></b></th>";
                    557:     }
                    558:     #
                    559:     my $num_output = 0;
1.8       matthew   560:     foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
1.28      matthew   561:         if (! $self->parameter_part_is_valid(
                    562:                                              $self->{'formulas'}->{'A'.$rownum}
                    563:                                              )) {
                    564:             next;
                    565:         }
1.1       matthew   566: 	if ($num_output++ % 50 == 0) {
                    567: 	    $r->print("</table>\n".$tableheader);
                    568: 	}
                    569: 	$r->print('<tr><td>'.$rownum.'</td>'.
1.14      matthew   570:                   $self->assess_html_row($rownum,$importcolor)."</tr>\n");
1.1       matthew   571:     }
                    572:     $r->print("</table>\n");
                    573:     return;
                    574: }
                    575: 
                    576: sub assess_html_row {
                    577:     my $self = shift();
1.14      matthew   578:     my ($row,$importcolor) = @_;
1.1       matthew   579:     my $parameter_name = $self->{'formulas'}->{'A'.$row};
                    580:     my @rowdata = $self->get_row($row);
                    581:     my $num_cols_output = 0;
                    582:     my $row_html;
1.48      albertel  583:     my $name=$self->get_parm_name($parameter_name);
                    584:     if ($name ne '') {
1.1       matthew   585:         $name =~ s/ /\&nbsp;/g;
                    586:         $row_html .= '<td>'.$name.'<br />'.$parameter_name.'</td>';
                    587:     } else {
                    588:         $row_html .= '<td>'.$parameter_name.'</td>';
                    589:     }
                    590:     foreach my $cell (@rowdata) {
1.10      matthew   591:         if ($num_cols_output < 1) {
1.14      matthew   592:             $row_html .= '<td bgcolor="'.$importcolor.'">';
1.10      matthew   593:             $row_html .= &Apache::Spreadsheet::html_uneditable_cell($cell,
                    594:                                                                     '#FFDDDD');
                    595:         } else {
1.56      albertel  596:             $row_html .= '<td bgcolor="#E0FFDD">';
1.10      matthew   597:             $row_html .= &Apache::Spreadsheet::html_editable_cell($cell,
                    598:                                                                   '#E0FFDD',1);
                    599:         }
1.1       matthew   600: 	$row_html .= '</td>';
1.10      matthew   601:         $num_cols_output++;
1.1       matthew   602:     }
                    603:     return $row_html;
                    604: }
                    605: 
1.9       matthew   606: sub csv_rows {
                    607:     # writes the meat of the spreadsheet to an excel worksheet.  Called
                    608:     # by Spreadsheet::outsheet_excel;
1.1       matthew   609:     my $self = shift;
1.30      matthew   610:     my ($connection,$filehandle) = @_;
1.9       matthew   611:     #
                    612:     # Write a header row
                    613:     $self->csv_output_row($filehandle,undef,
1.26      www       614:                           (&mt('Parameter'),&mt('Description'),&mt('Value')));
1.9       matthew   615:     #
                    616:     # Write each row
                    617:     foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
                    618:         my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
1.48      albertel  619:         my $description = $self->get_parm_name($parameter_name);
1.9       matthew   620:         $self->csv_output_row($filehandle,$rownum,
                    621:                               $parameter_name,$description);
                    622:     }
                    623:     return;
1.1       matthew   624: }
                    625: 
1.8       matthew   626: sub excel_rows {
                    627:     # writes the meat of the spreadsheet to an excel worksheet.  Called
                    628:     # by Spreadsheet::outsheet_excel;
1.1       matthew   629:     my $self = shift;
1.38      matthew   630:     my ($connection,$worksheet,$cols_output,$rows_output,$format) = @_;
1.30      matthew   631:     return if (! ref($worksheet));
1.8       matthew   632:     #
                    633:     # Write a header row
                    634:     $cols_output = 0;
                    635:     foreach my $value ('Parameter','Description','Value') {
1.38      matthew   636:         $worksheet->write($rows_output,$cols_output++,$value,$format->{'h4'});
1.8       matthew   637:     }
1.38      matthew   638:     $rows_output++;
1.8       matthew   639:     #
                    640:     # Write each row
                    641:     foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
                    642:         my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
1.48      albertel  643:         my $description = $self->get_parm_name($parameter_name);
1.8       matthew   644:         $self->excel_output_row($worksheet,$rownum,$rows_output++,
                    645:                                 $parameter_name,$description);
                    646:     }
                    647:     return;
1.1       matthew   648: }
                    649: 
1.21      matthew   650: ##
                    651: ## Routines to support assesscalc::compute
                    652: ##
1.48      albertel  653: sub get_parm {
1.21      matthew   654:     my $self = shift;
                    655:     my @Mandatory_parameters = @_;
1.48      albertel  656:     my %parameters;
1.21      matthew   657:     #
1.23      albertel  658:     my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
1.21      matthew   659:     my @Metadata = split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
                    660:     foreach my $parm (@Mandatory_parameters,@Metadata) {
                    661:         next if ($parm !~ /^(resource\.|stores|parameter)_/);
                    662:         my $cleaned_name = $parm;
                    663:         $cleaned_name =~ s/^resource\./stores_/;
                    664:         $cleaned_name =~ s/\./_/g;
1.48      albertel  665:         $parameters{$cleaned_name}=1;
                    666:     }
                    667:     return (keys(%parameters));
                    668: }
                    669: 
                    670: sub get_parm_name {
                    671:     my $self = shift;
                    672:     my $parm = shift;
                    673:     my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
                    674:     my $display = &Apache::lonnet::metadata($srcf,$parm.'.display');
                    675:     if (! $display) {
                    676: 	$display .= &Apache::lonnet::metadata($srcf,$parm.'.name');
1.21      matthew   677:     }
1.48      albertel  678:     return $display;
1.21      matthew   679: }
                    680: 
                    681: sub get_parameter_values {
                    682:     my $self = shift();
                    683:     my @Parameters;
                    684:     my ($parameters) = @_;
                    685:     if (!ref($parameters)) {
                    686:         @Parameters = @_;
                    687:     } elsif (ref($parameters) eq 'ARRAY') {
                    688:         @Parameters = @$parameters;
                    689:     } elsif (ref($parameters) eq 'HASH') {
                    690:         @Parameters = keys(%$parameters);
                    691:     }
                    692:     #
                    693:     my %parameters;
                    694:     #
                    695:     my $filename = $self->{'coursefilename'}.'_parms.db';
                    696:     if (tie(%parmhash,'GDBM_File',
                    697:             $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
1.44      albertel  698: 	my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($self->{'symb'});
1.55      albertel  699: 	$mapname = &Apache::lonnet::deversion($mapname);
1.21      matthew   700:         foreach my $parmname (@Parameters) {
1.47      albertel  701:             my $value = $self->parmval($parmname,$self->{'symb'},
                    702: 				       $self->{'name'},$self->{'domain'},
                    703: 				       $self->{'section'},undef,
1.53      raeburn   704: 				       $mapname,$id,$fn,$self->{'groups'});
1.21      matthew   705:             $parameters{$parmname} =$value;
                    706:         }
                    707:         untie(%parmhash);
                    708:     } else {
                    709:         $self->logthis('unable to tie '.$filename);
                    710:     }
                    711:     return %parameters;
                    712: }
                    713: 
                    714: sub deal_with_export_row {
                    715:     my $self = shift();
                    716:     my @exportarray = @_;
                    717:     $Exportrows{$self->{'symb'}}->{'time'} = time;
                    718:     $Exportrows{$self->{'symb'}}->{$self->{'filename'}} = \@exportarray;
                    719:     #
                    720:     # Save the export data
                    721:     $self->save_export_data();
                    722:     return;
                    723: }
                    724: 
1.22      matthew   725: sub get_problem_state {
                    726:     my $self = shift;
                    727:     my %student_parameters;
                    728:     if (exists($userdata{$self->{'symb'}}) && 
                    729:         ref($userdata{$self->{'symb'}}) eq 'HASH') {
                    730:         %student_parameters = %{$userdata{$self->{'symb'}}};
                    731:     }
                    732:     return %student_parameters;
                    733: }
1.21      matthew   734: 
1.28      matthew   735: sub determine_parts {
                    736:     my $self = shift;
1.41      albertel  737:     my $check_hidden = shift;
1.28      matthew   738:     if (exists($self->{'Parts'}) && ref($self->{'Parts'}) eq 'HASH') {
                    739:         return;
                    740:     }
                    741:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($self->{'symb'});
                    742:     my $src = &Apache::lonnet::clutter($url);
                    743:     return if (! defined($src));
                    744:     my %Parts;
                    745:     my $metadata = &Apache::lonnet::metadata($src,'packages');
                    746:     foreach (split(',',$metadata)) {
                    747:         my ($part) = (/^part_(.*)$/);
1.41      albertel  748:         if (!defined($part)) { next; }
                    749:         if (!$check_hidden) { $Parts{$part}++; next; }
                    750:         if (!&Apache::loncommon::check_if_partid_hidden
                    751: 	    ($part,$self->{'symb'},$self->{'name'},$self->{'domain'})
1.28      matthew   752:             ) {
                    753:             $Parts{$part}++;
                    754:         }
                    755:     }
                    756:     # Make sure part 0 is defined.
                    757:     $Parts{'0'}++;
                    758:     $self->{'Parts'} = \%Parts;
                    759:     return;
                    760: }
                    761: 
                    762: sub parameter_part_is_valid {
                    763:     my $self = shift;
                    764:     my ($parameter) = @_;
                    765:     return 1 if ($parameter eq 'timestamp');
                    766:     if (! defined($self->{'Parts'}) || 
                    767:         ! ref ($self->{'Parts'})    ||
                    768:         ref($self->{'Parts'}) ne 'HASH') {
                    769:         return 1;
                    770:     }
                    771:     #
1.51      albertel  772:     my ($start,@pieces)=split('_',$parameter);
                    773:     if ( $start !~ m/^(resource|stores|parameter)$/) { return 0; }
                    774:     while (@pieces) {
                    775:         pop(@pieces);
                    776:         my $testpart=join('_',@pieces);
                    777: 	if (exists($self->{'Parts'}->{$testpart}) &&
                    778: 	    $self->{'Parts'}->{$testpart} ) {
                    779: 	    return 1;
                    780: 	}
1.28      matthew   781:     }
1.51      albertel  782:     return 0;
1.28      matthew   783: }
                    784: 
1.1       matthew   785: sub compute {
                    786:     my $self = shift;
1.19      matthew   787:     my ($r) = @_;
1.1       matthew   788:     $self->initialize_safe_space();
1.11      matthew   789:     #########################################
                    790:     #########################################
                    791:     ###                                   ###
                    792:     ###  Retrieve the problem parameters  ###
                    793:     ###                                   ###
                    794:     #########################################
                    795:     #########################################
                    796:     my @Mandatory_parameters = ("stores_0_solved",
                    797:                                 "stores_0_awarddetail",
                    798:                                 "stores_0_awarded",
                    799:                                 "timestamp",
                    800:                                 "stores_0_tries",
                    801:                                 "stores_0_award");
1.1       matthew   802:     #
                    803:     # Definitions
                    804:     undef(%nice_parameter_name);
                    805:     my %parameters;   # holds underscored parameters by name
                    806:     #
                    807:     # Get the metadata fields and determine their proper names
1.48      albertel  808:     my @parameters=$self->get_parm(@Mandatory_parameters);
1.1       matthew   809:     #
                    810:     # Get the values of the metadata fields
1.22      matthew   811:     $self->ensure_current_caches();
1.48      albertel  812:     %parameters = $self->get_parameter_values(@parameters);
1.1       matthew   813:     #
                    814:     # Clean out unnecessary parameters
                    815:     foreach (keys(%parameters)) {
                    816:         delete($parameters{$_}) if (! /(resource\.|stores_|parameter_)/);
                    817:     }
                    818:     #
                    819:     # Get the students performance data
1.43      albertel  820:     $self->determine_parts(($parameters{'parameter_0_hiddenparts'} ne ''));
1.22      matthew   821:     my %student_parameters = $self->get_problem_state();
1.1       matthew   822:     while (my ($parm,$value) = each(%student_parameters)) {
                    823:         $parm =~ s/^resource\./stores_/;
                    824:         $parm =~ s/\./_/g;
1.41      albertel  825: 	# Clean out any bad parameters
                    826: 	next if (! $self->parameter_part_is_valid($parm));
                    827: 	$parameters{$parm} = $value;
1.1       matthew   828:     }
                    829:     #
                    830:     # Set up the formulas and parameter values
                    831:     my %f=$self->formulas();
                    832:     my %c;
                    833:     #
1.5       matthew   834:     # Check for blackout requirements
1.39      albertel  835:     if ((!exists($env{'request.role.adv'}) || !$env{'request.role.adv'})) {
1.5       matthew   836:         while (my ($parm,$value) = each(%parameters)) {
                    837:             last if ($self->blackout());
                    838:             next if ($parm !~ /^(parameter_.*)_problemstatus$/);
1.24      matthew   839:             if ($parameters{$1.'_answerdate'} ne '' &&
1.21      matthew   840:                 $parameters{$1.'_answerdate'} < time) {
                    841:                 next;
                    842:             }
1.5       matthew   843:             if (lc($value) eq 'no') {
                    844:                 # We must blackout this sheet
                    845:                 $self->blackout(1);
                    846:             }
                    847:         }
                    848:     }
                    849:     #
                    850:     # Move the parameters into the spreadsheet
1.1       matthew   851:     while (my ($parm,$value) = each(%parameters)) {
                    852:         my $cell = 'A'.$self->get_row_number_from_key($parm);
                    853:         $f{$cell} = $parm;
1.31      matthew   854:         if ($parm =~ /_submission$/ && $value =~ /(\{|\})/) {
                    855:             $value = 'witheld';
                    856:         }
1.49      albertel  857:         $value = 'q{'.$value.'}' if ($value =~/([^\d\.]|\.\.)/);
1.6       matthew   858:         $c{$parm} = $value;
1.1       matthew   859:     }
1.50      albertel  860:     foreach my $cell (grep(/^A/,keys(%f))) {
                    861:         # Clean out any bad formulas
                    862: 	next if (exists($c{$f{$cell}}));
                    863: 	next if ($cell eq 'A0');
                    864: 	delete($f{$cell});
                    865:     }
1.6       matthew   866:     $self->formulas(\%f);
                    867:     $self->constants(\%c);
1.1       matthew   868:     $self->calcsheet();
                    869:     #
                    870:     # Store export row in cache
                    871:     my @exportarray = $self->exportrow();
1.21      matthew   872:     $self->deal_with_export_row(@exportarray);
1.12      matthew   873:     $self->save() if ($self->need_to_save());
1.1       matthew   874:     return;
                    875: }
                    876: 
                    877: ##
                    878: ## sett overrides Spreadsheet::sett
                    879: ##
                    880: sub sett {
                    881:     my $self = shift;
                    882:     my %t=();
1.40      albertel  883:     undef(%Apache::Spreadsheet::sheet_values);
1.1       matthew   884:     #
                    885:     # Deal with the template row by copying the template formulas into each
                    886:     # row.
                    887:     foreach my $col ($self->template_cells()) {
                    888:         next if ($col=~/^A/);
                    889:         foreach my $row ($self->rows()) {
                    890:             # Get the name of this cell
                    891:             my $cell=$col.$row;
                    892:             # Grab the template declaration
                    893:             $t{$cell}=$self->formula('template_'.$col);
                    894:             # Replace '#' with the row number
                    895:             $t{$cell}=~s/\#/$row/g;
                    896:             # Replace '....' with ','
                    897:             $t{$cell}=~s/\.\.+/\,/g;
                    898:             # Replace 'A0' with the value from 'A0'
                    899:             $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
                    900:             # Replace parameters
1.58      albertel  901:             $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/sge;
1.1       matthew   902:         }
                    903:     }
                    904:     #
                    905:     # Deal with the cells which have formulas
                    906:     while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
                    907: 	next if ($cell =~ /template_/);
                    908:         if ($cell =~ /^A/ && $cell ne 'A0') {
1.45      albertel  909: 	    if ($formula !~ /^\!/ 
                    910: 		&& exists($self->{'constants'}->{$formula}) 
                    911: 		&& $self->{'constants'}->{$formula} ne ''
                    912: 		) {
1.40      albertel  913: 		$Apache::Spreadsheet::sheet_values{$cell}=
1.49      albertel  914: 		    eval($self->{'constants'}->{$formula});
1.1       matthew   915:             }
                    916:         } else {
                    917:             $t{$cell}=$formula;
                    918:             $t{$cell}=~s/\.\.+/\,/g;
                    919:             $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
1.58      albertel  920:             $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/sge;
1.1       matthew   921:         }
                    922:     }
                    923:     # Put %t into the safe space
                    924:     %{$self->{'safe'}->varglob('t')}=%t;
                    925: }
                    926: 
                    927: 
                    928: ########################################################
                    929: ########################################################
                    930: 
                    931: =pod
                    932: 
                    933: =item &load_cached_export_rows()
                    934: 
                    935: Retrieves and parsers the export rows of the assessment spreadsheets.
                    936: These rows are saved in the students directory in the format:
                    937: 
                    938:  sname:sdom:assesscalc:symb.time => time
                    939: 
                    940:  sname:sdom:assesscalc:symb => filename___=___Adata___;___Bdata___;___ ...
                    941: 
                    942: =cut
                    943: 
                    944: ########################################################
                    945: ########################################################
                    946: sub load_cached_export_rows {
1.18      matthew   947:     undef(%Exportrows);
1.1       matthew   948:     my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
1.39      albertel  949:                                     $env{'request.course.id'},
1.1       matthew   950:                                     $current_domain,$current_name,undef);
                    951:     if ($tmp[0]!~/^error/) {
                    952:         my %tmp = @tmp;
1.39      albertel  953:         my $default_filename =  $env{'course.'.$env{'request.course.id'}.
1.1       matthew   954:                                          '.spreadsheet_default_assesscalc'};
                    955:         # We only got one key, so we will access it directly.
                    956:         while (my ($key,$sheetdata) = each(%tmp)) {
                    957:             my ($sname,$sdom,$sheettype,$symb) = split(':',$key);
1.33      matthew   958:             if (! defined($sname) || $sname eq '' ||
                    959:                 ! defined($sdom)  || $sdom eq '' ) {
                    960:                 next;
                    961:             }
1.1       matthew   962:             if ($symb =~ /\.time$/) {
                    963:                 $symb =~ s/\.time$//;
                    964:                 $Exportrows{$symb}->{'time'} = $sheetdata;
                    965:             } else {
                    966:                 $sheetdata =~ s/^(.*)___=___//;
                    967:                 my $filename = $1;
                    968:                 $filename = $default_filename if (! defined($filename));
                    969:                 my @Data = split('___;___',$sheetdata);
                    970:                 $Exportrows{$symb}->{$filename} = \@Data;
                    971:             }
                    972:         }
                    973:     }
                    974: }
                    975: 
                    976: #############################################
                    977: #############################################
                    978: 
                    979: =pod
                    980: 
                    981: =item &export_data
                    982: 
                    983: Returns the export data associated with the spreadsheet.  Computes the
                    984: spreadsheet only if necessary.
                    985: 
                    986: =cut
                    987: 
                    988: #############################################
                    989: #############################################
                    990: sub export_data {
                    991:     my $self = shift;
1.19      matthew   992:     my ($r) = @_;
1.1       matthew   993:     my $symb = $self->{'symb'};
1.39      albertel  994:     if (! exists($env{'request.role.adv'}) || ! $env{'request.role.adv'} ||
1.5       matthew   995:         ! exists($Exportrows{$symb}) || ! defined($Exportrows{$symb})  ||
1.1       matthew   996:         ! $self->check_expiration_time($Exportrows{$symb}->{'time'}) ||
                    997:         ! exists($Exportrows{$symb}->{$self->{'filename'}}) ||
1.18      matthew   998:         ! defined($Exportrows{$symb}->{$self->{'filename'}}) ||
                    999:         ! ref($Exportrows{$symb}->{$self->{'filename'}}) 
                   1000:         ) {
1.19      matthew  1001:         $self->compute($r);
1.1       matthew  1002:     }
1.29      matthew  1003:     my @Data;
                   1004:     if ($self->badcalc()) {
                   1005:         @Data = ();
                   1006:     } else {
                   1007:         @Data = @{$Exportrows{$symb}->{$self->{'filename'}}};
                   1008:         if ($Data[0] =~ /^(.*)___=___/) {
                   1009:             $self->{'sheetname'} = $1;
                   1010:             $Data[0] =~ s/^(.*)___=___//;
                   1011:         }
                   1012:         for (my $i=0;$i<$#Data;$i++) {
                   1013:             if ($Data[$i]=~/\D/ && defined($Data[$i])) {
                   1014:                 $Data[$i]="'".$Data[$i]."'";
                   1015:             }
                   1016:         }
1.1       matthew  1017:     }
                   1018:     return @Data;
                   1019: }
                   1020: 
                   1021: #############################################
                   1022: #############################################
                   1023: 
                   1024: =pod
                   1025: 
                   1026: =item &save_export_data()
                   1027: 
                   1028: Writes the export data for this spreadsheet to the students cache.
                   1029: 
                   1030: =cut
                   1031: 
                   1032: #############################################
                   1033: #############################################
                   1034: sub save_export_data {
                   1035:     my $self = shift;
1.7       matthew  1036:     return if ($self->temporary());
1.1       matthew  1037:     my $student = $self->{'name'}.':'.$self->{'domain'};
                   1038:     my $symb    = $self->{'symb'};
1.29      matthew  1039:     if ($self->badcalc()){
                   1040:         # do not save data away when calculations have not been done properly.
                   1041:         delete($Exportrows{$symb});
                   1042:         return;
                   1043:     }
1.1       matthew  1044:     if (! exists($Exportrows{$symb}) || 
                   1045:         ! exists($Exportrows{$symb}->{$self->{'filename'}})) {
                   1046:         return;
                   1047:     }
                   1048:     my $key = join(':',($self->{'name'},$self->{'domain'},'assesscalc',$symb));
                   1049:     my $timekey = $key.'.time';
1.22      matthew  1050:     my $newstore= join('___;___',
                   1051:                        map {s/[^[:print:]]//g;$_;} # strip out unprintable
                   1052:                                 @{$Exportrows{$symb}->{$self->{'filename'}}});
1.1       matthew  1053:     $newstore = $self->{'filename'}.'___=___'.$newstore;
1.22      matthew  1054:     $newExportrows{$student}->{$key} = $newstore;
                   1055:     $newExportrows{$student}->{$timekey} = $Exportrows{$symb}->{'time'};
1.1       matthew  1056:     return;
                   1057: }
                   1058: 
                   1059: 1;
                   1060: 
                   1061: __END__

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