1: #
2: # $Id: assesscalc.pm,v 1.36 2005/02/05 06:56:24 albertel 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 $current_course;
100:
101: my %parmhash;
102: my %nice_parameter_name;
103:
104: my %useropt;
105: my %userdata;
106: my %courseopt;
107:
108: ########################################################
109: ########################################################
110:
111: =pod
112:
113: =head2 Package Subroutines
114:
115: =item &clear_package()
116:
117: Reset all package variables and clean up caches.
118:
119: =cut
120:
121: ########################################################
122: ########################################################
123: sub clear_package {
124: if (defined($current_name) &&
125: defined($current_domain) &&
126: defined($current_course) &&
127: $current_course eq $ENV{'request.course.id'} &&
128: %newExportrows) {
129: &save_cached_export_rows($current_name,$current_domain);
130: }
131: undef(%Exportrows);
132: undef(%newExportrows);
133: undef($current_name);
134: undef($current_domain);
135: undef($current_course);
136: undef(%useropt);
137: undef(%userdata);
138: undef(%courseopt);
139: }
140:
141: sub save_cached_export_rows {
142: my ($sname,$sdomain) = @_;
143: my $start = Time::HiRes::time;
144: my $result = &Apache::lonnet::put
145: ('nohist_calculatedsheets_'.$ENV{'request.course.id'},
146: $newExportrows{$sname.':'.$sdomain},
147: $sdomain,$sname);
148: delete($newExportrows{$sname.':'.$sdomain});
149: }
150:
151: sub initialize {
152: &clear_package();
153: &Apache::loncoursedata::clear_internal_caches();
154: }
155:
156: ########################################################
157: ########################################################
158:
159: =pod
160:
161: =item &initialize_package()
162:
163: =cut
164:
165: ########################################################
166: ########################################################
167: sub initialize_package {
168: my ($sname,$sdomain) = @_;
169: $current_name = $sname;
170: $current_domain = $sdomain;
171: undef(%useropt);
172: undef(%userdata);
173: if ($current_course ne $ENV{'request.course.id'}) {
174: $current_course = $ENV{'request.course.id'};
175: undef(%courseopt);
176: }
177: &load_cached_export_rows();
178: &load_parameter_caches();
179: &Apache::loncoursedata::clear_internal_caches();
180: }
181:
182:
183: ########################################################
184: ########################################################
185:
186: =pod
187:
188: =item &load_parameter_caches()
189:
190: =cut
191:
192: ########################################################
193: ########################################################
194: sub load_parameter_caches {
195: my $userprefix = $current_name.':'.$current_domain.'_';
196: $userprefix =~ s/:/_/g;
197: #
198: # Course Parameters Cache
199: if (! %courseopt) {
200: $current_course = $ENV{'request.course.id'};
201: undef(%courseopt);
202: if (! defined($current_name) || ! defined($current_domain)) {
203: return;
204: }
205: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
206: my $id = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
207: my %Tmp = &Apache::lonnet::dump('resourcedata',$dom,$id);
208: while (my ($name,$value) = each(%Tmp)) {
209: $courseopt{$name}=$value;
210: }
211: }
212: if (! %useropt) {
213: my %Tmp = &Apache::lonnet::dump('resourcedata',
214: $current_domain,$current_name);
215: while (my ($name,$value) = each(%Tmp)) {
216: if ($name =~ /^error: 2/ || $name =~ /no such file/) {
217: undef(%useropt);
218: last;
219: }
220: $useropt{$userprefix.$name}=$value;
221: }
222: $useropt{'loadtime'} = time;
223: }
224: if (! %userdata) {
225: %userdata = &Apache::loncoursedata::get_current_state($current_name,
226: $current_domain);
227: $userdata{'loadtime'} = time;
228: }
229: return;
230: }
231:
232: ########################################################
233: ########################################################
234:
235: =pod
236:
237: =head2 assesscalc object methods
238:
239: =cut
240:
241: ########################################################
242: ########################################################
243: sub ensure_current_caches {
244: my $self = shift;
245: ##
246: ## Check for a modified parameters
247: ##
248: if (! defined($current_course) ||
249: $current_course ne $ENV{'request.course.id'} ) {
250: $current_course = $ENV{'request.course.id'};
251: undef(%courseopt);
252: undef(%useropt);
253: undef(%userdata);
254: }
255: ##
256: ## Check for new user
257: ##
258: if (! defined($current_name) || $current_name ne $self->{'name'} ||
259: ! defined($current_domain) || $current_domain ne $self->{'domain'}) {
260: $current_domain = $self->{'domain'};
261: $current_name = $self->{'name'};
262: undef(%useropt);
263: undef(%userdata);
264: }
265: &load_parameter_caches();
266: }
267:
268: ##################################################
269: ##################################################
270:
271: =pod
272:
273: =item &parmval()
274:
275: Determine the value of a parameter.
276:
277: Inputs: $what, the parameter needed, $symb, $uname, $udom, $csec
278:
279: Returns: The value of a parameter, or '' if none.
280:
281: This function cascades through the possible levels searching for a value for
282: a parameter. The levels are checked in the following order:
283: user, course (at section level and course level), map, and lonnet::metadata.
284: This function uses %parmhash, which must be tied prior to calling it.
285: This function also requires %courseopt and %useropt to be initialized for
286: this user and course.
287:
288: =cut
289:
290: ##################################################
291: ##################################################
292: sub parmval {
293: my $self = shift;
294: my ($what,$symb,$uname,$udom,$csec,$recurse)=@_;
295: $uname = $self->{'name'} if (! defined($uname));
296: $udom = $self->{'domain'} if (! defined($udom));
297: $csec = $self->{'section'} if (! defined($csec));
298: $symb = $self->{'symb'} if (! defined($symb));
299: #
300: my $result='';
301: #
302: # This should be a
303: my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
304: # Cascading lookup scheme
305: my $rwhat=$what;
306: $what =~ s/^parameter\_//;
307: $what =~ s/\_([^\_]+)$/\.$1/;
308: #
309: my $symbparm = $symb.'.'.$what;
310: my $mapparm = $mapname.'___(all).'.$what;
311: my $courseprefix = $self->{'cid'};
312: my $usercourseprefix = $uname.'_'.$udom.'_'.$self->{'cid'};
313: #
314: my $seclevel = $courseprefix.'.['.$csec.'].'.$what;
315: my $seclevelr = $courseprefix.'.['.$csec.'].'.$symbparm;
316: my $seclevelm = $courseprefix.'.['.$csec.'].'.$mapparm;
317: #
318: my $courselevel = $courseprefix.'.'.$what;
319: my $courselevelr = $courseprefix.'.'.$symbparm;
320: my $courselevelm = $courseprefix.'.'.$mapparm;
321: #
322: my $ucourselevel = $usercourseprefix.'.'.$what;
323: my $ucourselevelr = $usercourseprefix.'.'.$symbparm;
324: my $ucourselevelm = $usercourseprefix.'.'.$mapparm;
325: # check user
326: if (defined($uname)) {
327: return $useropt{$ucourselevelr} if (defined($useropt{$ucourselevelr}));
328: return $useropt{$ucourselevelm} if (defined($useropt{$ucourselevelm}));
329: return $useropt{$ucourselevel} if (defined($useropt{$ucourselevel}));
330: }
331: # check section
332: if (defined($csec)) {
333: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
334: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
335: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
336: }
337: #
338: # check course
339: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
340: # check map parms
341: my $thisparm = $parmhash{$symbparm};
342: return $thisparm if (defined($thisparm));
343: # check default
344: $thisparm = &Apache::lonnet::metadata($fn,$rwhat.'.default');
345: return $thisparm if (defined($thisparm));
346: # check more course
347: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
348: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
349:
350: # Cascade Up
351: my $space=$what;
352: $space=~s/\.[^._]+$//;
353: if ($space ne '0') {
354: my @parts=split(/_/,$space);
355: my $id=pop(@parts);
356: my $part=join('_',@parts);
357: if ($part eq '') { $part='0'; }
358: my $newwhat=$rwhat;
359: $newwhat=~s/\Q$space\E/$part/;
360: my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1);
361: if (defined($partgeneral)) { return $partgeneral; }
362: }
363: if ($recurse) { return undef; }
364: my $pack_def=&Apache::lonnet::packages_tab_default($fn,'resource.'.$what);
365: if (defined($pack_def)) { return $pack_def; }
366: #nothing defined
367: return '';
368: }
369:
370: sub get_html_title {
371: my $self = shift;
372: my ($assess_title,$name,$time) = $self->get_full_title();
373: my $title = '<h1>'.$assess_title.'</h1>'.
374: '<h2>'.$name.', '.
375: &Apache::loncommon::aboutmewrapper
376: ($self->{'name'}.'@'.$self->{'domain'},
377: $self->{'name'},$self->{'domain'});
378: $title .= '<h3>'.$time.'</h3>';
379: return $title;
380: }
381:
382: sub get_title {
383: my $self = shift;
384: if (($self->{'symb'} eq '_feedback') ||
385: ($self->{'symb'} eq '_evaluation') ||
386: ($self->{'symb'} eq '_discussion') ||
387: ($self->{'symb'} eq '_tutoring')) {
388: my $assess_title = ucfirst($self->{'symb'});
389: $assess_title =~ s/^_//;
390: return $assess_title;
391: } else {
392: return &Apache::lonnet::gettitle($self->{'symb'});
393: }
394: }
395:
396: sub get_full_title {
397: my $self = shift;
398: my @title = ($self->get_title());
399: # Look up the users identifying information
400: # Get the users information
401: my $name = &Apache::loncommon::plainname($self->{'name'},
402: $self->{'domain'});
403: push (@title,$name);
404: push (@title,&Apache::lonlocal::locallocaltime(time));
405: return @title;
406: }
407:
408: sub parent_link {
409: my $self = shift;
410: my $link .= '<p><a href="/adm/studentcalc?'.
411: 'sname='.$self->{'name'}.
412: '&sdomain='.$self->{'domain'}.'">'.
413: &mt('Student level sheet').'</a></p>'."\n";
414: return $link;
415: }
416:
417: sub outsheet_html {
418: my $self = shift;
419: my ($r) = @_;
420: ####################################
421: # Report any calculation errors #
422: ####################################
423: $r->print($self->html_report_error());
424: ###################################
425: # Determine table structure
426: ###################################
427: my $importcolor = '#FFFFFF';
428: my $exportcolor = '#FFFFAA';
429: my $num_uneditable = 1;
430: my $num_left = 52-$num_uneditable;
431: my %lt=&Apache::lonlocal::texthash(
432: 'as' => 'Assessment',
433: 'ca' => 'Calculations',
434: );
435: my $tableheader =<<"END";
436: <table border="2">
437: <tr>
438: <th colspan="2" rowspan="2"><font size="+2">$lt{'as'}</font></th>
439: <td bgcolor="$importcolor" colspan="$num_uneditable"> </td>
440: <td colspan="$num_left">
441: <b><font size="+1">$lt{'ca'}</font></b></td>
442: </tr><tr>
443: END
444: my $label_num = 0;
445: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
446: if ($label_num<$num_uneditable) {
447: $tableheader .= '<td bgcolor="'.$importcolor.'">';
448: } else {
449: $tableheader .= '<td>';
450: }
451: $tableheader .= "<b><font size=+1>$_</font></b></td>";
452: $label_num++;
453: }
454: $tableheader.="</tr>\n";
455: #
456: $r->print($tableheader);
457: #
458: # Print out template row
459: $r->print('<tr><td>Template</td><td> </td>'.
460: $self->html_template_row($num_uneditable,$importcolor).
461: "</tr>\n");
462: #
463: # Print out summary/export row
464: $r->print('<tr><td>Export</td><td>0</td>'.
465: $self->html_export_row($exportcolor)."</tr>\n");
466: #
467: # Prepare to output rows
468: $tableheader =<<"END";
469: <table border="2">
470: <tr><th>row</th><th>Item</th>
471: END
472: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
473: if ($label_num<$num_uneditable) {
474: $tableheader.='<th bgcolor="'.$importcolor.'">';
475: } else {
476: $tableheader.='<th>';
477: }
478: $tableheader.="<b><font size=+1>$_</font></b></th>";
479: }
480: #
481: my $num_output = 0;
482: foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
483: if (! $self->parameter_part_is_valid(
484: $self->{'formulas'}->{'A'.$rownum}
485: )) {
486: next;
487: }
488: if ($num_output++ % 50 == 0) {
489: $r->print("</table>\n".$tableheader);
490: }
491: $r->print('<tr><td>'.$rownum.'</td>'.
492: $self->assess_html_row($rownum,$importcolor)."</tr>\n");
493: }
494: $r->print("</table>\n");
495: return;
496: }
497:
498: sub assess_html_row {
499: my $self = shift();
500: my ($row,$importcolor) = @_;
501: my $parameter_name = $self->{'formulas'}->{'A'.$row};
502: my @rowdata = $self->get_row($row);
503: my $num_cols_output = 0;
504: my $row_html;
505: if (exists($nice_parameter_name{$parameter_name})) {
506: my $name = $nice_parameter_name{$parameter_name};
507: $name =~ s/ /\ /g;
508: $row_html .= '<td>'.$name.'<br />'.$parameter_name.'</td>';
509: } else {
510: $row_html .= '<td>'.$parameter_name.'</td>';
511: }
512: foreach my $cell (@rowdata) {
513: if ($num_cols_output < 1) {
514: $row_html .= '<td bgcolor="'.$importcolor.'">';
515: $row_html .= &Apache::Spreadsheet::html_uneditable_cell($cell,
516: '#FFDDDD');
517: } else {
518: $row_html .= '<td bgcolor="#EOFFDD">';
519: $row_html .= &Apache::Spreadsheet::html_editable_cell($cell,
520: '#E0FFDD',1);
521: }
522: $row_html .= '</td>';
523: $num_cols_output++;
524: }
525: return $row_html;
526: }
527:
528: sub csv_rows {
529: # writes the meat of the spreadsheet to an excel worksheet. Called
530: # by Spreadsheet::outsheet_excel;
531: my $self = shift;
532: my ($connection,$filehandle) = @_;
533: #
534: # Write a header row
535: $self->csv_output_row($filehandle,undef,
536: (&mt('Parameter'),&mt('Description'),&mt('Value')));
537: #
538: # Write each row
539: foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
540: my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
541: my $description = '';
542: if (exists($nice_parameter_name{$parameter_name})) {
543: $description = $nice_parameter_name{$parameter_name};
544: }
545: $self->csv_output_row($filehandle,$rownum,
546: $parameter_name,$description);
547: }
548: return;
549: }
550:
551: sub excel_rows {
552: # writes the meat of the spreadsheet to an excel worksheet. Called
553: # by Spreadsheet::outsheet_excel;
554: my $self = shift;
555: my ($connection,$worksheet,$cols_output,$rows_output) = @_;
556: return if (! ref($worksheet));
557: #
558: # Write a header row
559: $cols_output = 0;
560: foreach my $value ('Parameter','Description','Value') {
561: $worksheet->write($rows_output,$cols_output++,$value);
562: }
563: $rows_output++;
564: #
565: # Write each row
566: foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
567: my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
568: my $description = '';
569: if (exists($nice_parameter_name{$parameter_name})) {
570: $description = $nice_parameter_name{$parameter_name};
571: }
572: $self->excel_output_row($worksheet,$rownum,$rows_output++,
573: $parameter_name,$description);
574: }
575: return;
576: }
577:
578: ##
579: ## Routines to support assesscalc::compute
580: ##
581: sub get_parm_names {
582: my $self = shift;
583: my @Mandatory_parameters = @_;
584: my %parameters_and_names;
585: #
586: my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
587: my @Metadata = split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
588: foreach my $parm (@Mandatory_parameters,@Metadata) {
589: next if ($parm !~ /^(resource\.|stores|parameter)_/);
590: my $cleaned_name = $parm;
591: $cleaned_name =~ s/^resource\./stores_/;
592: $cleaned_name =~ s/\./_/g;
593: my $display = &Apache::lonnet::metadata($srcf,
594: $cleaned_name.'.display');
595: if (! $display) {
596: $display .= &Apache::lonnet::metadata($srcf,$cleaned_name.'.name');
597: }
598: $parameters_and_names{$cleaned_name}=$display;
599: }
600: return (%parameters_and_names);
601: }
602:
603: sub get_parameter_values {
604: my $self = shift();
605: my @Parameters;
606: my ($parameters) = @_;
607: if (!ref($parameters)) {
608: @Parameters = @_;
609: } elsif (ref($parameters) eq 'ARRAY') {
610: @Parameters = @$parameters;
611: } elsif (ref($parameters) eq 'HASH') {
612: @Parameters = keys(%$parameters);
613: }
614: #
615: my %parameters;
616: #
617: my $filename = $self->{'coursefilename'}.'_parms.db';
618: if (tie(%parmhash,'GDBM_File',
619: $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
620: foreach my $parmname (@Parameters) {
621: my $value = $self->parmval($parmname);
622: $parameters{$parmname} =$value;
623: }
624: untie(%parmhash);
625: } else {
626: $self->logthis('unable to tie '.$filename);
627: }
628: return %parameters;
629: }
630:
631: sub deal_with_export_row {
632: my $self = shift();
633: my @exportarray = @_;
634: $Exportrows{$self->{'symb'}}->{'time'} = time;
635: $Exportrows{$self->{'symb'}}->{$self->{'filename'}} = \@exportarray;
636: #
637: # Save the export data
638: $self->save_export_data();
639: return;
640: }
641:
642: sub get_problem_state {
643: my $self = shift;
644: my %student_parameters;
645: if (exists($userdata{$self->{'symb'}}) &&
646: ref($userdata{$self->{'symb'}}) eq 'HASH') {
647: %student_parameters = %{$userdata{$self->{'symb'}}};
648: }
649: return %student_parameters;
650: }
651:
652: sub determine_parts {
653: my $self = shift;
654: if (exists($self->{'Parts'}) && ref($self->{'Parts'}) eq 'HASH') {
655: return;
656: }
657: my (undef,undef,$url) = &Apache::lonnet::decode_symb($self->{'symb'});
658: my $src = &Apache::lonnet::clutter($url);
659: return if (! defined($src));
660: my %Parts;
661: my $metadata = &Apache::lonnet::metadata($src,'packages');
662: foreach (split(',',$metadata)) {
663: my ($part) = (/^part_(.*)$/);
664: if (defined($part) &&
665: ! &Apache::loncommon::check_if_partid_hidden
666: ($part,$self->{'symb'},$self->{'name'},$self->{'domain'})
667: ) {
668: $Parts{$part}++;
669: }
670: }
671: # Make sure part 0 is defined.
672: $Parts{'0'}++;
673: $self->{'Parts'} = \%Parts;
674: return;
675: }
676:
677: sub parameter_part_is_valid {
678: my $self = shift;
679: my ($parameter) = @_;
680: return 1 if ($parameter eq 'timestamp');
681: if (! defined($self->{'Parts'}) ||
682: ! ref ($self->{'Parts'}) ||
683: ref($self->{'Parts'}) ne 'HASH') {
684: return 1;
685: }
686: #
687: my (undef,$part) =
688: ($parameter =~ m/^(resource|stores|parameter)_([^_]+)_.*/);
689: if (exists($self->{'Parts'}) &&
690: exists($self->{'Parts'}->{$part}) &&
691: $self->{'Parts'}->{$part} ) {
692: return 1;
693: } else {
694: return 0;
695: }
696: }
697:
698: sub compute {
699: my $self = shift;
700: my ($r) = @_;
701: my $connection = $r->connection();
702: if ($connection->aborted()) { $self->cleanup(); return; }
703: $self->initialize_safe_space();
704: #########################################
705: #########################################
706: ### ###
707: ### Retrieve the problem parameters ###
708: ### ###
709: #########################################
710: #########################################
711: my @Mandatory_parameters = ("stores_0_solved",
712: "stores_0_awarddetail",
713: "stores_0_awarded",
714: "timestamp",
715: "stores_0_tries",
716: "stores_0_award");
717: #
718: # Definitions
719: undef(%nice_parameter_name);
720: my %parameters; # holds underscored parameters by name
721: #
722: # Get the metadata fields and determine their proper names
723: my %nice_parm_names = $self->get_parm_names(@Mandatory_parameters);
724: while (my($cleaned_name,$display) = each(%nice_parm_names)) {
725: $parameters{$cleaned_name}++;
726: $nice_parameter_name{$cleaned_name} = $display;
727: }
728: #
729: # Get the values of the metadata fields
730: if ($connection->aborted()) { $self->cleanup(); return; }
731: $self->ensure_current_caches();
732: if ($connection->aborted()) { $self->cleanup(); return; }
733: %parameters = $self->get_parameter_values(keys(%parameters));
734: if ($connection->aborted()) { $self->cleanup(); return; }
735: #
736: # Clean out unnecessary parameters
737: foreach (keys(%parameters)) {
738: delete($parameters{$_}) if (! /(resource\.|stores_|parameter_)/);
739: }
740: #
741: # Get the students performance data
742: my %student_parameters = $self->get_problem_state();
743: while (my ($parm,$value) = each(%student_parameters)) {
744: $parm =~ s/^resource\./stores_/;
745: $parm =~ s/\./_/g;
746: $parameters{$parm} = $value;
747: }
748: #
749: # Clean out any bad parameters
750: $self->determine_parts();
751: foreach my $param (keys(%parameters)) {
752: if (! $self->parameter_part_is_valid($param)) {
753: delete ($parameters{$param});
754: }
755: }
756: #
757: # Set up the formulas and parameter values
758: my %f=$self->formulas();
759: my %c;
760: #
761: # Check for blackout requirements
762: if ((!exists($ENV{'request.role.adv'}) || !$ENV{'request.role.adv'})) {
763: while (my ($parm,$value) = each(%parameters)) {
764: last if ($self->blackout());
765: next if ($parm !~ /^(parameter_.*)_problemstatus$/);
766: if ($parameters{$1.'_answerdate'} ne '' &&
767: $parameters{$1.'_answerdate'} < time) {
768: next;
769: }
770: if (lc($value) eq 'no') {
771: # We must blackout this sheet
772: $self->blackout(1);
773: }
774: }
775: }
776: if ($connection->aborted()) { $self->cleanup(); return; }
777: #
778: # Move the parameters into the spreadsheet
779: while (my ($parm,$value) = each(%parameters)) {
780: my $cell = 'A'.$self->get_row_number_from_key($parm);
781: $f{$cell} = $parm;
782: if ($parm =~ /_submission$/ && $value =~ /(\{|\})/) {
783: $value = 'witheld';
784: }
785: $value = 'q{'.$value.'}' if ($value =~/([^\d\.]|\.\.)/);
786: $c{$parm} = $value;
787: }
788: $self->formulas(\%f);
789: $self->constants(\%c);
790: if ($connection->aborted()) { $self->cleanup(); return; }
791: $self->calcsheet();
792: #
793: # Store export row in cache
794: my @exportarray = $self->exportrow();
795: $self->deal_with_export_row(@exportarray);
796: $self->save() if ($self->need_to_save());
797: if ($connection->aborted()) { $self->cleanup(); return; }
798: return;
799: }
800:
801: ##
802: ## sett overrides Spreadsheet::sett
803: ##
804: sub sett {
805: my $self = shift;
806: my %t=();
807: #
808: # Deal with the template row by copying the template formulas into each
809: # row.
810: foreach my $col ($self->template_cells()) {
811: next if ($col=~/^A/);
812: foreach my $row ($self->rows()) {
813: # Get the name of this cell
814: my $cell=$col.$row;
815: # Grab the template declaration
816: $t{$cell}=$self->formula('template_'.$col);
817: # Replace '#' with the row number
818: $t{$cell}=~s/\#/$row/g;
819: # Replace '....' with ','
820: $t{$cell}=~s/\.\.+/\,/g;
821: # Replace 'A0' with the value from 'A0'
822: $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
823: # Replace parameters
824: $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
825: }
826: }
827: #
828: # Deal with the cells which have formulas
829: while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
830: next if ($cell =~ /template_/);
831: if ($cell =~ /^A/ && $cell ne 'A0') {
832: if ($formula !~ /^\!/) {
833: $t{$cell}=$self->{'constants'}->{$formula};
834: }
835: } else {
836: $t{$cell}=$formula;
837: $t{$cell}=~s/\.\.+/\,/g;
838: $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
839: $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
840: }
841: }
842: # Put %t into the safe space
843: %{$self->{'safe'}->varglob('t')}=%t;
844: }
845:
846:
847: ########################################################
848: ########################################################
849:
850: =pod
851:
852: =item &load_cached_export_rows()
853:
854: Retrieves and parsers the export rows of the assessment spreadsheets.
855: These rows are saved in the students directory in the format:
856:
857: sname:sdom:assesscalc:symb.time => time
858:
859: sname:sdom:assesscalc:symb => filename___=___Adata___;___Bdata___;___ ...
860:
861: =cut
862:
863: ########################################################
864: ########################################################
865: sub load_cached_export_rows {
866: undef(%Exportrows);
867: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
868: $ENV{'request.course.id'},
869: $current_domain,$current_name,undef);
870: if ($tmp[0]!~/^error/) {
871: my %tmp = @tmp;
872: my $default_filename = $ENV{'course.'.$ENV{'request.course.id'}.
873: '.spreadsheet_default_assesscalc'};
874: # We only got one key, so we will access it directly.
875: while (my ($key,$sheetdata) = each(%tmp)) {
876: my ($sname,$sdom,$sheettype,$symb) = split(':',$key);
877: if (! defined($sname) || $sname eq '' ||
878: ! defined($sdom) || $sdom eq '' ) {
879: next;
880: }
881: if ($symb =~ /\.time$/) {
882: $symb =~ s/\.time$//;
883: $Exportrows{$symb}->{'time'} = $sheetdata;
884: } else {
885: $sheetdata =~ s/^(.*)___=___//;
886: my $filename = $1;
887: $filename = $default_filename if (! defined($filename));
888: my @Data = split('___;___',$sheetdata);
889: $Exportrows{$symb}->{$filename} = \@Data;
890: }
891: }
892: }
893: }
894:
895: #############################################
896: #############################################
897:
898: =pod
899:
900: =item &export_data
901:
902: Returns the export data associated with the spreadsheet. Computes the
903: spreadsheet only if necessary.
904:
905: =cut
906:
907: #############################################
908: #############################################
909: sub export_data {
910: my $self = shift;
911: my ($r) = @_;
912: my $connection = $r->connection();
913: my $symb = $self->{'symb'};
914: if (! exists($ENV{'request.role.adv'}) || ! $ENV{'request.role.adv'} ||
915: ! exists($Exportrows{$symb}) || ! defined($Exportrows{$symb}) ||
916: ! $self->check_expiration_time($Exportrows{$symb}->{'time'}) ||
917: ! exists($Exportrows{$symb}->{$self->{'filename'}}) ||
918: ! defined($Exportrows{$symb}->{$self->{'filename'}}) ||
919: ! ref($Exportrows{$symb}->{$self->{'filename'}})
920: ) {
921: $self->compute($r);
922: }
923: if ($connection->aborted()) { $self->cleanup(); return; }
924: my @Data;
925: if ($self->badcalc()) {
926: @Data = ();
927: } else {
928: @Data = @{$Exportrows{$symb}->{$self->{'filename'}}};
929: if ($Data[0] =~ /^(.*)___=___/) {
930: $self->{'sheetname'} = $1;
931: $Data[0] =~ s/^(.*)___=___//;
932: }
933: for (my $i=0;$i<$#Data;$i++) {
934: if ($Data[$i]=~/\D/ && defined($Data[$i])) {
935: $Data[$i]="'".$Data[$i]."'";
936: }
937: }
938: }
939: return @Data;
940: }
941:
942: #############################################
943: #############################################
944:
945: =pod
946:
947: =item &save_export_data()
948:
949: Writes the export data for this spreadsheet to the students cache.
950:
951: =cut
952:
953: #############################################
954: #############################################
955: sub save_export_data {
956: my $self = shift;
957: return if ($self->temporary());
958: my $student = $self->{'name'}.':'.$self->{'domain'};
959: my $symb = $self->{'symb'};
960: if ($self->badcalc()){
961: # do not save data away when calculations have not been done properly.
962: delete($Exportrows{$symb});
963: return;
964: }
965: if (! exists($Exportrows{$symb}) ||
966: ! exists($Exportrows{$symb}->{$self->{'filename'}})) {
967: return;
968: }
969: my $key = join(':',($self->{'name'},$self->{'domain'},'assesscalc',$symb));
970: my $timekey = $key.'.time';
971: my $newstore= join('___;___',
972: map {s/[^[:print:]]//g;$_;} # strip out unprintable
973: @{$Exportrows{$symb}->{$self->{'filename'}}});
974: $newstore = $self->{'filename'}.'___=___'.$newstore;
975: $newExportrows{$student}->{$key} = $newstore;
976: $newExportrows{$student}->{$timekey} = $Exportrows{$symb}->{'time'};
977: return;
978: }
979:
980: 1;
981:
982: __END__
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