1: #
2: # $Id: assesscalc.pm,v 1.54 2006/05/01 17:30:20 raeburn Exp $
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;
47: use warnings FATAL=>'all';
48: no warnings 'uninitialized';
49: use Apache::Constants qw(:common :http);
50: use Apache::lonnet;
51: use Apache::loncommon;
52: use Apache::Spreadsheet;
53: use Apache::loncoursedata();
54: use HTML::Entities();
55: use Spreadsheet::WriteExcel;
56: use GDBM_File;
57: use Time::HiRes;
58: use Apache::lonlocal;
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;
95: my %newExportrows;
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;
105: my %userdata;
106: my %courseopt;
107: my $navmap;
108:
109: ########################################################
110: ########################################################
111:
112: =pod
113:
114: =head2 Package Subroutines
115:
116: =item &clear_package()
117:
118: Reset all package variables and clean up caches.
119:
120: =cut
121:
122: ########################################################
123: ########################################################
124: sub clear_package {
125: if (defined($current_name) &&
126: defined($current_domain) &&
127: defined($current_course) &&
128: $current_course eq $env{'request.course.id'} &&
129: %newExportrows) {
130: &save_cached_export_rows($current_name,$current_domain);
131: }
132: undef(%Exportrows);
133: undef(%newExportrows);
134: undef($current_name);
135: undef($current_domain);
136: undef($current_course);
137: undef(%useropt);
138: undef(%userdata);
139: undef(%courseopt);
140: undef($navmap);
141: }
142:
143: sub save_cached_export_rows {
144: my ($sname,$sdomain) = @_;
145: my $result = &Apache::lonnet::put
146: ('nohist_calculatedsheets_'.$env{'request.course.id'},
147: $newExportrows{$sname.':'.$sdomain},
148: $sdomain,$sname);
149: delete($newExportrows{$sname.':'.$sdomain});
150: }
151:
152: sub initialize {
153: my ($in_navmap) = @_;
154: &clear_package();
155: $navmap = $in_navmap;
156: if (! defined($navmap)) {
157: $navmap = Apache::lonnavmaps::navmap->new();
158: }
159: if (!defined($navmap)) {
160: &Apache::lonnet::logthis('assesscalc:Can not open Coursemap');
161: }
162: &Apache::loncoursedata::clear_internal_caches();
163: }
164:
165: ########################################################
166: ########################################################
167:
168: =pod
169:
170: =item &initialize_package()
171:
172: =cut
173:
174: ########################################################
175: ########################################################
176: sub initialize_package {
177: my ($sname,$sdomain,$in_navmap) = @_;
178: $current_name = $sname;
179: $current_domain = $sdomain;
180: $navmap = $in_navmap;
181: undef(%useropt);
182: undef(%userdata);
183: if ($current_course ne $env{'request.course.id'}) {
184: $current_course = $env{'request.course.id'};
185: undef(%courseopt);
186: }
187: &load_cached_export_rows();
188: &load_parameter_caches();
189: &Apache::loncoursedata::clear_internal_caches();
190: }
191:
192:
193: ########################################################
194: ########################################################
195:
196: =pod
197:
198: =item &load_parameter_caches()
199:
200: =cut
201:
202: ########################################################
203: ########################################################
204: sub load_parameter_caches {
205: my $userprefix = $current_name.':'.$current_domain.'_';
206: $userprefix =~ s/:/_/g;
207: #
208: # Course Parameters Cache
209: if (! %courseopt) {
210: $current_course = $env{'request.course.id'};
211: undef(%courseopt);
212: if (! defined($current_name) || ! defined($current_domain)) {
213: return;
214: }
215: my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
216: my $id = $env{'course.'.$env{'request.course.id'}.'.num'};
217: my %Tmp = &Apache::lonnet::dump('resourcedata',$dom,$id);
218: while (my ($name,$value) = each(%Tmp)) {
219: $courseopt{$name}=$value;
220: }
221: }
222: if (! %useropt) {
223: my %Tmp = &Apache::lonnet::dump('resourcedata',
224: $current_domain,$current_name);
225: while (my ($name,$value) = each(%Tmp)) {
226: if ($name =~ /^error: 2/ || $name =~ /no such file/) {
227: undef(%useropt);
228: last;
229: }
230: $useropt{$userprefix.$name}=$value;
231: }
232: $useropt{'loadtime'} = time;
233: }
234: if (! %userdata) {
235: %userdata = &Apache::loncoursedata::get_current_state($current_name,
236: $current_domain);
237: $userdata{'loadtime'} = time;
238: }
239: return;
240: }
241:
242: ########################################################
243: ########################################################
244:
245: =pod
246:
247: =head2 assesscalc object methods
248:
249: =cut
250:
251: ########################################################
252: ########################################################
253: sub ensure_current_caches {
254: my $self = shift;
255: ##
256: ## Check for a modified parameters
257: ##
258: if (! defined($current_course) ||
259: $current_course ne $env{'request.course.id'} ) {
260: $current_course = $env{'request.course.id'};
261: undef(%courseopt);
262: undef(%useropt);
263: undef(%userdata);
264: }
265: ##
266: ## Check for new user
267: ##
268: if (! defined($current_name) || $current_name ne $self->{'name'} ||
269: ! defined($current_domain) || $current_domain ne $self->{'domain'}) {
270: $current_domain = $self->{'domain'};
271: $current_name = $self->{'name'};
272: undef(%useropt);
273: undef(%userdata);
274: }
275: &load_parameter_caches();
276: }
277:
278: ##################################################
279: ##################################################
280:
281: =pod
282:
283: =item &parmval()
284:
285: Determine the value of a parameter.
286:
287: Inputs: $what, the parameter needed, $symb, $uname, $udom, $csec
288:
289: Returns: The value of a parameter, or '' if none.
290:
291: This function cascades through the possible levels searching for a value for
292: a parameter. The levels are checked in the following order:
293: user, course (at group, section level and course level), map, and
294: lonnet::metadata.
295: This function uses %parmhash, which must be tied prior to calling it.
296: This function also requires %courseopt and %useropt to be initialized for
297: this user and course.
298:
299: =cut
300:
301: ##################################################
302: ##################################################
303: sub parmval {
304: my $self = shift;
305: my ($what,$symb,$uname,$udom,$csec,$recurse,$mapname,$id,$fn,$groups)=@_;
306: $uname = $self->{'name'} if (! defined($uname));
307: $udom = $self->{'domain'} if (! defined($udom));
308: $csec = $self->{'section'} if (! defined($csec));
309: $groups = $self->{'groups'} if (! defined($groups));
310: $symb = $self->{'symb'} if (! defined($symb));
311: #
312: my $result='';
313: #
314: # This should be a
315: if (!defined($mapname) || !defined($id) || !defined($fn)) {
316: ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
317: }
318: # Cascading lookup scheme
319: my $rwhat=$what;
320: $what =~ s/^parameter\_//;
321: $what =~ s/\_([^\_]+)$/\.$1/;
322: #
323: my $symbparm = $symb.'.'.$what;
324: my $mapparm = $mapname.'___(all).'.$what;
325: my $courseprefix = $self->{'cid'};
326: my $usercourseprefix = $uname.'_'.$udom.'_'.$self->{'cid'};
327: #
328: my $seclevel = $courseprefix.'.['.$csec.'].'.$what;
329: my $seclevelr = $courseprefix.'.['.$csec.'].'.$symbparm;
330: my $seclevelm = $courseprefix.'.['.$csec.'].'.$mapparm;
331: #
332: my $courselevel = $courseprefix.'.'.$what;
333: my $courselevelr = $courseprefix.'.'.$symbparm;
334: my $courselevelm = $courseprefix.'.'.$mapparm;
335: #
336: my $ucourselevel = $usercourseprefix.'.'.$what;
337: my $ucourselevelr = $usercourseprefix.'.'.$symbparm;
338: my $ucourselevelm = $usercourseprefix.'.'.$mapparm;
339: # check user
340: if (defined($uname)) {
341: return $useropt{$ucourselevelr} if (defined($useropt{$ucourselevelr}));
342: return $useropt{$ucourselevelm} if (defined($useropt{$ucourselevelm}));
343: return $useropt{$ucourselevel} if (defined($useropt{$ucourselevel}));
344: }
345: # check groups
346: if (defined($groups) && ref($groups) eq 'ARRAY') {
347: foreach my $group (@{$groups}) {
348: foreach my $level ($symbparm,$mapparm,$what) {
349: my $item = $courseprefix.'.['.$group.'].'.$level;
350: if (defined($courseopt{$item})) {
351: return $courseopt{$item};
352: }
353: }
354: }
355: }
356: # check section
357: if (defined($csec)) {
358: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
359: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
360: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
361: }
362: #
363: # check course
364: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
365: # check map parms
366: my $thisparm = $parmhash{$symbparm};
367: return $thisparm if (defined($thisparm));
368: # check default
369: $thisparm = &Apache::lonnet::metadata($fn,$rwhat.'.default');
370: return $thisparm if (defined($thisparm));
371: # check more course
372: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
373: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
374:
375: # Cascade Up
376: my $space=$what;
377: $space=~s/\.[^._]+$//;
378: if ($space ne '0') {
379: my @parts=split(/_/,$space);
380: my $id=pop(@parts);
381: my $part=join('_',@parts);
382: if ($part eq '') { $part='0'; }
383: my $newwhat=$rwhat;
384: $newwhat=~s/\Q$space\E/$part/;
385: my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1,
386: $mapname,$id,$fn,$groups);
387: if (defined($partgeneral)) { return $partgeneral; }
388: }
389: if ($recurse) { return undef; }
390: my $pack_def=&Apache::lonnet::packages_tab_default($fn,'resource.'.$what);
391: if (defined($pack_def)) { return $pack_def; }
392: #nothing defined
393: return '';
394: }
395:
396: sub get_html_title {
397: my $self = shift;
398: my ($assess_title,$name,$time) = $self->get_full_title();
399: my $title = '<h1>'.$assess_title.'</h1>'.
400: '<h2>'.$name.', '.
401: &Apache::loncommon::aboutmewrapper
402: ($self->{'name'}.'@'.$self->{'domain'},
403: $self->{'name'},$self->{'domain'});
404: $title .= '<h3>'.$time.'</h3>';
405: return $title;
406: }
407:
408: sub get_title {
409: my $self = shift;
410: if (($self->{'symb'} eq '_feedback') ||
411: ($self->{'symb'} eq '_evaluation') ||
412: ($self->{'symb'} eq '_discussion') ||
413: ($self->{'symb'} eq '_tutoring')) {
414: my $assess_title = ucfirst($self->{'symb'});
415: $assess_title =~ s/^_//;
416: return $assess_title;
417: } else {
418: return &Apache::lonnet::gettitle($self->{'symb'});
419: }
420: }
421:
422: sub get_full_title {
423: my $self = shift;
424: my @title = ($self->get_title());
425: # Look up the users identifying information
426: # Get the users information
427: my $name = &Apache::loncommon::plainname($self->{'name'},
428: $self->{'domain'});
429: push (@title,$name);
430: push (@title,&Apache::lonlocal::locallocaltime(time));
431: return @title;
432: }
433:
434: sub parent_link {
435: my $self = shift;
436: my $link .= '<p><a href="/adm/studentcalc?'.
437: 'sname='.$self->{'name'}.
438: '&sdomain='.$self->{'domain'}.'">'.
439: &mt('Student level sheet').'</a></p>'."\n";
440: return $link;
441: }
442:
443: sub outsheet_html {
444: my $self = shift;
445: my ($r) = @_;
446: ####################################
447: # Report any calculation errors #
448: ####################################
449: $r->print($self->html_report_error());
450: ###################################
451: # Determine table structure
452: ###################################
453: my $importcolor = '#FFFFFF';
454: my $exportcolor = '#FFFFAA';
455: my $num_uneditable = 1;
456: my $num_left = 52-$num_uneditable;
457: my %lt=&Apache::lonlocal::texthash(
458: 'as' => 'Assessment',
459: 'ca' => 'Calculations',
460: );
461: my $tableheader =<<"END";
462: <table border="2">
463: <tr>
464: <th colspan="2" rowspan="2"><font size="+2">$lt{'as'}</font></th>
465: <td bgcolor="$importcolor" colspan="$num_uneditable"> </td>
466: <td colspan="$num_left">
467: <b><font size="+1">$lt{'ca'}</font></b></td>
468: </tr><tr>
469: END
470: my $label_num = 0;
471: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
472: if ($label_num<$num_uneditable) {
473: $tableheader .= '<td bgcolor="'.$importcolor.'">';
474: } else {
475: $tableheader .= '<td>';
476: }
477: $tableheader .= "<b><font size=+1>$_</font></b></td>";
478: $label_num++;
479: }
480: $tableheader.="</tr>\n";
481: #
482: $r->print($tableheader);
483: #
484: # Print out template row
485: $r->print('<tr><td>Template</td><td> </td>'.
486: $self->html_template_row($num_uneditable,$importcolor).
487: "</tr>\n");
488: #
489: # Print out summary/export row
490: $r->print('<tr><td>Export</td><td>0</td>'.
491: $self->html_export_row($exportcolor)."</tr>\n");
492: #
493: # Prepare to output rows
494: $tableheader =<<"END";
495: <table border="2">
496: <tr><th>row</th><th>Item</th>
497: END
498: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
499: if ($label_num<$num_uneditable) {
500: $tableheader.='<th bgcolor="'.$importcolor.'">';
501: } else {
502: $tableheader.='<th>';
503: }
504: $tableheader.="<b><font size=+1>$_</font></b></th>";
505: }
506: #
507: my $num_output = 0;
508: foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
509: if (! $self->parameter_part_is_valid(
510: $self->{'formulas'}->{'A'.$rownum}
511: )) {
512: next;
513: }
514: if ($num_output++ % 50 == 0) {
515: $r->print("</table>\n".$tableheader);
516: }
517: $r->print('<tr><td>'.$rownum.'</td>'.
518: $self->assess_html_row($rownum,$importcolor)."</tr>\n");
519: }
520: $r->print("</table>\n");
521: return;
522: }
523:
524: sub assess_html_row {
525: my $self = shift();
526: my ($row,$importcolor) = @_;
527: my $parameter_name = $self->{'formulas'}->{'A'.$row};
528: my @rowdata = $self->get_row($row);
529: my $num_cols_output = 0;
530: my $row_html;
531: my $name=$self->get_parm_name($parameter_name);
532: if ($name ne '') {
533: $name =~ s/ /\ /g;
534: $row_html .= '<td>'.$name.'<br />'.$parameter_name.'</td>';
535: } else {
536: $row_html .= '<td>'.$parameter_name.'</td>';
537: }
538: foreach my $cell (@rowdata) {
539: if ($num_cols_output < 1) {
540: $row_html .= '<td bgcolor="'.$importcolor.'">';
541: $row_html .= &Apache::Spreadsheet::html_uneditable_cell($cell,
542: '#FFDDDD');
543: } else {
544: $row_html .= '<td bgcolor="#EOFFDD">';
545: $row_html .= &Apache::Spreadsheet::html_editable_cell($cell,
546: '#E0FFDD',1);
547: }
548: $row_html .= '</td>';
549: $num_cols_output++;
550: }
551: return $row_html;
552: }
553:
554: sub csv_rows {
555: # writes the meat of the spreadsheet to an excel worksheet. Called
556: # by Spreadsheet::outsheet_excel;
557: my $self = shift;
558: my ($connection,$filehandle) = @_;
559: #
560: # Write a header row
561: $self->csv_output_row($filehandle,undef,
562: (&mt('Parameter'),&mt('Description'),&mt('Value')));
563: #
564: # Write each row
565: foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
566: my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
567: my $description = $self->get_parm_name($parameter_name);
568: $self->csv_output_row($filehandle,$rownum,
569: $parameter_name,$description);
570: }
571: return;
572: }
573:
574: sub excel_rows {
575: # writes the meat of the spreadsheet to an excel worksheet. Called
576: # by Spreadsheet::outsheet_excel;
577: my $self = shift;
578: my ($connection,$worksheet,$cols_output,$rows_output,$format) = @_;
579: return if (! ref($worksheet));
580: #
581: # Write a header row
582: $cols_output = 0;
583: foreach my $value ('Parameter','Description','Value') {
584: $worksheet->write($rows_output,$cols_output++,$value,$format->{'h4'});
585: }
586: $rows_output++;
587: #
588: # Write each row
589: foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
590: my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
591: my $description = $self->get_parm_name($parameter_name);
592: $self->excel_output_row($worksheet,$rownum,$rows_output++,
593: $parameter_name,$description);
594: }
595: return;
596: }
597:
598: ##
599: ## Routines to support assesscalc::compute
600: ##
601: sub get_parm {
602: my $self = shift;
603: my @Mandatory_parameters = @_;
604: my %parameters;
605: #
606: my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
607: my @Metadata = split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
608: foreach my $parm (@Mandatory_parameters,@Metadata) {
609: next if ($parm !~ /^(resource\.|stores|parameter)_/);
610: my $cleaned_name = $parm;
611: $cleaned_name =~ s/^resource\./stores_/;
612: $cleaned_name =~ s/\./_/g;
613: $parameters{$cleaned_name}=1;
614: }
615: return (keys(%parameters));
616: }
617:
618: sub get_parm_name {
619: my $self = shift;
620: my $parm = shift;
621: my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
622: my $display = &Apache::lonnet::metadata($srcf,$parm.'.display');
623: if (! $display) {
624: $display .= &Apache::lonnet::metadata($srcf,$parm.'.name');
625: }
626: return $display;
627: }
628:
629: sub get_parameter_values {
630: my $self = shift();
631: my @Parameters;
632: my ($parameters) = @_;
633: if (!ref($parameters)) {
634: @Parameters = @_;
635: } elsif (ref($parameters) eq 'ARRAY') {
636: @Parameters = @$parameters;
637: } elsif (ref($parameters) eq 'HASH') {
638: @Parameters = keys(%$parameters);
639: }
640: #
641: my %parameters;
642: #
643: my $filename = $self->{'coursefilename'}.'_parms.db';
644: if (tie(%parmhash,'GDBM_File',
645: $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
646: my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($self->{'symb'});
647: foreach my $parmname (@Parameters) {
648: my $value = $self->parmval($parmname,$self->{'symb'},
649: $self->{'name'},$self->{'domain'},
650: $self->{'section'},undef,
651: $mapname,$id,$fn,$self->{'groups'});
652: $parameters{$parmname} =$value;
653: }
654: untie(%parmhash);
655: } else {
656: $self->logthis('unable to tie '.$filename);
657: }
658: return %parameters;
659: }
660:
661: sub deal_with_export_row {
662: my $self = shift();
663: my @exportarray = @_;
664: $Exportrows{$self->{'symb'}}->{'time'} = time;
665: $Exportrows{$self->{'symb'}}->{$self->{'filename'}} = \@exportarray;
666: #
667: # Save the export data
668: $self->save_export_data();
669: return;
670: }
671:
672: sub get_problem_state {
673: my $self = shift;
674: my %student_parameters;
675: if (exists($userdata{$self->{'symb'}}) &&
676: ref($userdata{$self->{'symb'}}) eq 'HASH') {
677: %student_parameters = %{$userdata{$self->{'symb'}}};
678: }
679: return %student_parameters;
680: }
681:
682: sub determine_parts {
683: my $self = shift;
684: my $check_hidden = shift;
685: if (exists($self->{'Parts'}) && ref($self->{'Parts'}) eq 'HASH') {
686: return;
687: }
688: my (undef,undef,$url) = &Apache::lonnet::decode_symb($self->{'symb'});
689: my $src = &Apache::lonnet::clutter($url);
690: return if (! defined($src));
691: my %Parts;
692: my $metadata = &Apache::lonnet::metadata($src,'packages');
693: foreach (split(',',$metadata)) {
694: my ($part) = (/^part_(.*)$/);
695: if (!defined($part)) { next; }
696: if (!$check_hidden) { $Parts{$part}++; next; }
697: if (!&Apache::loncommon::check_if_partid_hidden
698: ($part,$self->{'symb'},$self->{'name'},$self->{'domain'})
699: ) {
700: $Parts{$part}++;
701: }
702: }
703: # Make sure part 0 is defined.
704: $Parts{'0'}++;
705: $self->{'Parts'} = \%Parts;
706: return;
707: }
708:
709: sub parameter_part_is_valid {
710: my $self = shift;
711: my ($parameter) = @_;
712: return 1 if ($parameter eq 'timestamp');
713: if (! defined($self->{'Parts'}) ||
714: ! ref ($self->{'Parts'}) ||
715: ref($self->{'Parts'}) ne 'HASH') {
716: return 1;
717: }
718: #
719: my ($start,@pieces)=split('_',$parameter);
720: if ( $start !~ m/^(resource|stores|parameter)$/) { return 0; }
721: while (@pieces) {
722: pop(@pieces);
723: my $testpart=join('_',@pieces);
724: if (exists($self->{'Parts'}->{$testpart}) &&
725: $self->{'Parts'}->{$testpart} ) {
726: return 1;
727: }
728: }
729: return 0;
730: }
731:
732: sub compute {
733: my $self = shift;
734: my ($r) = @_;
735: $self->initialize_safe_space();
736: #########################################
737: #########################################
738: ### ###
739: ### Retrieve the problem parameters ###
740: ### ###
741: #########################################
742: #########################################
743: my @Mandatory_parameters = ("stores_0_solved",
744: "stores_0_awarddetail",
745: "stores_0_awarded",
746: "timestamp",
747: "stores_0_tries",
748: "stores_0_award");
749: #
750: # Definitions
751: undef(%nice_parameter_name);
752: my %parameters; # holds underscored parameters by name
753: #
754: # Get the metadata fields and determine their proper names
755: my @parameters=$self->get_parm(@Mandatory_parameters);
756: #
757: # Get the values of the metadata fields
758: $self->ensure_current_caches();
759: %parameters = $self->get_parameter_values(@parameters);
760: #
761: # Clean out unnecessary parameters
762: foreach (keys(%parameters)) {
763: delete($parameters{$_}) if (! /(resource\.|stores_|parameter_)/);
764: }
765: #
766: # Get the students performance data
767: $self->determine_parts(($parameters{'parameter_0_hiddenparts'} ne ''));
768: my %student_parameters = $self->get_problem_state();
769: while (my ($parm,$value) = each(%student_parameters)) {
770: $parm =~ s/^resource\./stores_/;
771: $parm =~ s/\./_/g;
772: # Clean out any bad parameters
773: next if (! $self->parameter_part_is_valid($parm));
774: $parameters{$parm} = $value;
775: }
776: #
777: # Set up the formulas and parameter values
778: my %f=$self->formulas();
779: my %c;
780: #
781: # Check for blackout requirements
782: if ((!exists($env{'request.role.adv'}) || !$env{'request.role.adv'})) {
783: while (my ($parm,$value) = each(%parameters)) {
784: last if ($self->blackout());
785: next if ($parm !~ /^(parameter_.*)_problemstatus$/);
786: if ($parameters{$1.'_answerdate'} ne '' &&
787: $parameters{$1.'_answerdate'} < time) {
788: next;
789: }
790: if (lc($value) eq 'no') {
791: # We must blackout this sheet
792: $self->blackout(1);
793: }
794: }
795: }
796: #
797: # Move the parameters into the spreadsheet
798: while (my ($parm,$value) = each(%parameters)) {
799: my $cell = 'A'.$self->get_row_number_from_key($parm);
800: $f{$cell} = $parm;
801: if ($parm =~ /_submission$/ && $value =~ /(\{|\})/) {
802: $value = 'witheld';
803: }
804: $value = 'q{'.$value.'}' if ($value =~/([^\d\.]|\.\.)/);
805: $c{$parm} = $value;
806: }
807: foreach my $cell (grep(/^A/,keys(%f))) {
808: # Clean out any bad formulas
809: next if (exists($c{$f{$cell}}));
810: next if ($cell eq 'A0');
811: delete($f{$cell});
812: }
813: $self->formulas(\%f);
814: $self->constants(\%c);
815: $self->calcsheet();
816: #
817: # Store export row in cache
818: my @exportarray = $self->exportrow();
819: $self->deal_with_export_row(@exportarray);
820: $self->save() if ($self->need_to_save());
821: return;
822: }
823:
824: ##
825: ## sett overrides Spreadsheet::sett
826: ##
827: sub sett {
828: my $self = shift;
829: my %t=();
830: undef(%Apache::Spreadsheet::sheet_values);
831: #
832: # Deal with the template row by copying the template formulas into each
833: # row.
834: foreach my $col ($self->template_cells()) {
835: next if ($col=~/^A/);
836: foreach my $row ($self->rows()) {
837: # Get the name of this cell
838: my $cell=$col.$row;
839: # Grab the template declaration
840: $t{$cell}=$self->formula('template_'.$col);
841: # Replace '#' with the row number
842: $t{$cell}=~s/\#/$row/g;
843: # Replace '....' with ','
844: $t{$cell}=~s/\.\.+/\,/g;
845: # Replace 'A0' with the value from 'A0'
846: $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
847: # Replace parameters
848: $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
849: }
850: }
851: #
852: # Deal with the cells which have formulas
853: while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
854: next if ($cell =~ /template_/);
855: if ($cell =~ /^A/ && $cell ne 'A0') {
856: if ($formula !~ /^\!/
857: && exists($self->{'constants'}->{$formula})
858: && $self->{'constants'}->{$formula} ne ''
859: ) {
860: $Apache::Spreadsheet::sheet_values{$cell}=
861: eval($self->{'constants'}->{$formula});
862: }
863: } else {
864: $t{$cell}=$formula;
865: $t{$cell}=~s/\.\.+/\,/g;
866: $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
867: $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
868: }
869: }
870: # Put %t into the safe space
871: %{$self->{'safe'}->varglob('t')}=%t;
872: }
873:
874:
875: ########################################################
876: ########################################################
877:
878: =pod
879:
880: =item &load_cached_export_rows()
881:
882: Retrieves and parsers the export rows of the assessment spreadsheets.
883: These rows are saved in the students directory in the format:
884:
885: sname:sdom:assesscalc:symb.time => time
886:
887: sname:sdom:assesscalc:symb => filename___=___Adata___;___Bdata___;___ ...
888:
889: =cut
890:
891: ########################################################
892: ########################################################
893: sub load_cached_export_rows {
894: undef(%Exportrows);
895: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
896: $env{'request.course.id'},
897: $current_domain,$current_name,undef);
898: if ($tmp[0]!~/^error/) {
899: my %tmp = @tmp;
900: my $default_filename = $env{'course.'.$env{'request.course.id'}.
901: '.spreadsheet_default_assesscalc'};
902: # We only got one key, so we will access it directly.
903: while (my ($key,$sheetdata) = each(%tmp)) {
904: my ($sname,$sdom,$sheettype,$symb) = split(':',$key);
905: if (! defined($sname) || $sname eq '' ||
906: ! defined($sdom) || $sdom eq '' ) {
907: next;
908: }
909: if ($symb =~ /\.time$/) {
910: $symb =~ s/\.time$//;
911: $Exportrows{$symb}->{'time'} = $sheetdata;
912: } else {
913: $sheetdata =~ s/^(.*)___=___//;
914: my $filename = $1;
915: $filename = $default_filename if (! defined($filename));
916: my @Data = split('___;___',$sheetdata);
917: $Exportrows{$symb}->{$filename} = \@Data;
918: }
919: }
920: }
921: }
922:
923: #############################################
924: #############################################
925:
926: =pod
927:
928: =item &export_data
929:
930: Returns the export data associated with the spreadsheet. Computes the
931: spreadsheet only if necessary.
932:
933: =cut
934:
935: #############################################
936: #############################################
937: sub export_data {
938: my $self = shift;
939: my ($r) = @_;
940: my $symb = $self->{'symb'};
941: if (! exists($env{'request.role.adv'}) || ! $env{'request.role.adv'} ||
942: ! exists($Exportrows{$symb}) || ! defined($Exportrows{$symb}) ||
943: ! $self->check_expiration_time($Exportrows{$symb}->{'time'}) ||
944: ! exists($Exportrows{$symb}->{$self->{'filename'}}) ||
945: ! defined($Exportrows{$symb}->{$self->{'filename'}}) ||
946: ! ref($Exportrows{$symb}->{$self->{'filename'}})
947: ) {
948: $self->compute($r);
949: }
950: my @Data;
951: if ($self->badcalc()) {
952: @Data = ();
953: } else {
954: @Data = @{$Exportrows{$symb}->{$self->{'filename'}}};
955: if ($Data[0] =~ /^(.*)___=___/) {
956: $self->{'sheetname'} = $1;
957: $Data[0] =~ s/^(.*)___=___//;
958: }
959: for (my $i=0;$i<$#Data;$i++) {
960: if ($Data[$i]=~/\D/ && defined($Data[$i])) {
961: $Data[$i]="'".$Data[$i]."'";
962: }
963: }
964: }
965: return @Data;
966: }
967:
968: #############################################
969: #############################################
970:
971: =pod
972:
973: =item &save_export_data()
974:
975: Writes the export data for this spreadsheet to the students cache.
976:
977: =cut
978:
979: #############################################
980: #############################################
981: sub save_export_data {
982: my $self = shift;
983: return if ($self->temporary());
984: my $student = $self->{'name'}.':'.$self->{'domain'};
985: my $symb = $self->{'symb'};
986: if ($self->badcalc()){
987: # do not save data away when calculations have not been done properly.
988: delete($Exportrows{$symb});
989: return;
990: }
991: if (! exists($Exportrows{$symb}) ||
992: ! exists($Exportrows{$symb}->{$self->{'filename'}})) {
993: return;
994: }
995: my $key = join(':',($self->{'name'},$self->{'domain'},'assesscalc',$symb));
996: my $timekey = $key.'.time';
997: my $newstore= join('___;___',
998: map {s/[^[:print:]]//g;$_;} # strip out unprintable
999: @{$Exportrows{$symb}->{$self->{'filename'}}});
1000: $newstore = $self->{'filename'}.'___=___'.$newstore;
1001: $newExportrows{$student}->{$key} = $newstore;
1002: $newExportrows{$student}->{$timekey} = $Exportrows{$symb}->{'time'};
1003: return;
1004: }
1005:
1006: 1;
1007:
1008: __END__
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