Annotation of loncom/interface/spreadsheet/studentcalc.pm, revision 1.38
1.1 matthew 1: #
1.38 ! raeburn 2: # $Id: studentcalc.pm,v 1.37 2006/04/06 16:43:49 albertel 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: studentcalc
34:
35: =head1 SYNOPSIS
36:
37: =head1 DESCRIPTION
38:
39: =over 4
40:
41: =cut
42:
43: ###################################################
44: ### StudentSheet ###
45: ###################################################
46: package Apache::studentcalc;
47:
1.17 matthew 48: use warnings FATAL=>'all';
49: no warnings 'uninitialized';
50:
1.1 matthew 51: use strict;
52: use Apache::Constants qw(:common :http);
53: use Apache::lonnet;
1.3 matthew 54: use Apache::loncommon();
55: use Apache::loncoursedata();
1.1 matthew 56: use Apache::lonnavmaps;
1.3 matthew 57: use Apache::Spreadsheet();
58: use Apache::assesscalc();
1.1 matthew 59: use HTML::Entities();
60: use Time::HiRes;
1.23 www 61: use Apache::lonlocal;
1.1 matthew 62:
63: @Apache::studentcalc::ISA = ('Apache::Spreadsheet');
64:
65: my @Sequences = ();
1.28 matthew 66: my $navmap;
1.1 matthew 67: my %Exportrows = ();
68:
69: my $current_course;
70:
1.8 matthew 71: sub initialize {
72: &initialize_sequence_cache();
1.28 matthew 73: &Apache::assesscalc::initialize($navmap);
1.8 matthew 74: }
75:
1.1 matthew 76: sub initialize_package {
1.30 albertel 77: $current_course = $env{'request.course.id'};
1.1 matthew 78: &initialize_sequence_cache();
79: &load_cached_export_rows();
1.8 matthew 80: }
81:
82: sub ensure_correct_sequence_data {
1.30 albertel 83: if ($current_course ne $env{'request.course.id'}) {
1.8 matthew 84: &initialize_sequence_cache();
1.30 albertel 85: $current_course = $env{'request.course.id'};
1.8 matthew 86: }
87: return;
1.1 matthew 88: }
89:
90: sub initialize_sequence_cache {
91: #
92: # Set up the sequences and assessments
1.22 matthew 93: undef(@Sequences);
1.28 matthew 94: undef($navmap);
95: $navmap = Apache::lonnavmaps::navmap->new();
96: if (!defined($navmap)) {
97: &Apache::lonnet::logthis('student spreadsheet:Can not open Coursemap');
98: }
99: my @all_sequences = $navmap->retrieveResources(undef,
100: sub { shift->is_map(); },1,0,1);
101: for my $sequence ($navmap->getById('0.0'), @all_sequences) {
102: if ($navmap->hasResource($sequence,sub { shift->is_problem(); }, 0)){
103: push(@Sequences,$sequence);
1.31 albertel 104: &get_resources($sequence);
1.28 matthew 105: }
1.1 matthew 106: }
1.28 matthew 107: }
108:
1.31 albertel 109: my %res_memoize;
1.28 matthew 110: sub get_resources {
111: my ($seq) = @_;
1.31 albertel 112: if (exists($res_memoize{$seq->symb()})) {
113: return @{$res_memoize{$seq->symb()}};
114: }
1.28 matthew 115: return () if (! defined($navmap) || ! ref($navmap));
116: my @resources = $navmap->retrieveResources($seq,
117: sub { shift->is_problem(); },
118: 0,0,0);
1.31 albertel 119: $res_memoize{$seq->symb()}=\@resources;
1.28 matthew 120: return @resources;
1.1 matthew 121: }
122:
123: sub clear_package {
1.17 matthew 124: undef(@Sequences);
125: undef(%Exportrows);
1.31 albertel 126: undef(%res_memoize);
1.33 albertel 127: undef($navmap);
1.18 matthew 128: &Apache::assesscalc::clear_package();
1.1 matthew 129: }
130:
131: sub get_title {
132: my $self = shift;
1.6 matthew 133: my @title = ();
134: #
135: # Determine the students name
1.26 albertel 136: my $name = &Apache::loncommon::plainname($self->{'name'},
137: $self->{'domain'});
1.6 matthew 138: push (@title,$name);
139: push (@title,$self->{'coursedesc'});
1.23 www 140: push (@title,&Apache::lonlocal::locallocaltime(time));
1.6 matthew 141: return @title;
142: }
143:
144: sub get_html_title {
145: my $self = shift;
146: my ($name,$desc,$time) = $self->get_title();
147: my $title = '<h1>'.$name;
1.30 albertel 148: if ($env{'user.name'} ne $self->{'name'} &&
149: $env{'user.domain'} ne $self->{'domain'}) {
1.19 matthew 150: $title .= ' '.&Apache::loncommon::aboutmewrapper
1.3 matthew 151: ($self->{'name'}.'@'.$self->{'domain'},
152: $self->{'name'},$self->{'domain'});
153: }
154: $title .= "</h1>\n";
1.6 matthew 155: $title .= '<h2>'.$desc."</h2>\n";
156: $title .= '<h3>'.$time.'</h3>';
1.1 matthew 157: return $title;
158: }
159:
160: sub parent_link {
161: my $self = shift;
1.23 www 162: return '<p><a href="/adm/classcalc">'.&mt('Course level sheet').'</a></p>'."\n";
1.1 matthew 163: }
164:
1.14 matthew 165: sub convenience_links {
166: my $self = shift;
167: my ($resource) = @_;
1.28 matthew 168: my $result=&Apache::loncommon::submlink('<img src="/adm/lonMisc/subm_button.gif" border="0" />',$self->{'name'},$self->{'domain'},$resource->symb,'LONcatInfo');
169: $result .= &Apache::loncommon::pgrdlink('<img src="/adm/lonMisc/pgrd_button.gif" border="0" />',$self->{'name'},$self->{'domain'},$resource->symb,'LONcatInfo');
170: $result .= &Apache::loncommon::pprmlink('<img src="/adm/lonMisc/pprm_button.gif" border="0" />',$self->{'name'},$self->{'domain'},$resource->symb,'LONcatInfo');
1.14 matthew 171: return $result;
172: }
173:
1.1 matthew 174: sub outsheet_html {
175: my $self = shift;
176: my ($r) = @_;
1.13 matthew 177: my $importcolor = '#FFFFAA';
1.12 matthew 178: my $exportcolor = '#88FF88';
1.1 matthew 179: ####################################
180: # Get the list of assessment files #
181: ####################################
182: my @AssessFileNames = $self->othersheets('assesscalc');
1.2 matthew 183: my $editing_is_allowed = &Apache::lonnet::allowed('mgr',
1.30 albertel 184: $env{'request.course.id'});
1.1 matthew 185: ####################################
1.24 matthew 186: # Report any calculation errors #
187: ####################################
188: $r->print($self->html_report_error());
189: ####################################
1.1 matthew 190: # Determine table structure #
191: ####################################
192: my $num_uneditable = 26;
193: my $num_left = 52-$num_uneditable;
1.23 www 194: my %lt=&Apache::lonlocal::texthash(
195: 'st' => 'Student',
196: 'im' => 'Import',
197: 'ca' => 'Calculations',
198: 'as' => 'Assessment',
199: 'ro' => 'Row',
200: );
1.1 matthew 201: my $tableheader =<<"END";
1.2 matthew 202: <p>
1.1 matthew 203: <table border="2">
204: <tr>
1.23 www 205: <th colspan="2" rowspan="2"><font size="+2">$lt{'st'}</font></th>
1.12 matthew 206: <td bgcolor="$importcolor" colspan="$num_uneditable">
1.23 www 207: <b><font size="+1">$lt{'im'}</font></b></td>
1.1 matthew 208: <td colspan="$num_left">
1.23 www 209: <b><font size="+1">$lt{'ca'}</font></b></td>
1.1 matthew 210: </tr><tr>
211: END
212: my $label_num = 0;
213: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
214: if ($label_num<$num_uneditable) {
1.12 matthew 215: $tableheader .='<td bgcolor="'.$importcolor.'">';
1.1 matthew 216: } else {
217: $tableheader .='<td>';
218: }
219: $tableheader .="<b><font size=+1>$_</font></b></td>";
220: $label_num++;
221: }
222: $tableheader .="</tr>\n";
1.4 matthew 223: if ($self->blackout()) {
224: $r->print('<font color="red" size="+2"><p>'.
1.23 www 225: &mt('Some computations are not available at this time.').'<br />'.
226: &mt('There are problems whose status you are not allowed to view.').
1.4 matthew 227: '</font></p>'."\n");
228: } else {
229: $r->print($tableheader);
230: #
231: # Print out template row
1.30 albertel 232: if (exists($env{'request.role.adv'}) && $env{'request.role.adv'}) {
1.4 matthew 233: $r->print('<tr><td>Template</td><td> </td>'.
1.12 matthew 234: $self->html_template_row($num_uneditable,
235: $importcolor)."</tr>\n");
1.4 matthew 236: }
237: #
238: # Print out summary/export row
1.23 www 239: $r->print('<tr><td>'.&mt('Summary').'</td><td>0</td>'.
1.12 matthew 240: $self->html_export_row($exportcolor)."</tr>\n");
1.4 matthew 241: }
1.1 matthew 242: $r->print("</table>\n");
243: #
244: # Prepare to output rows
1.30 albertel 245: if (exists($env{'request.role.adv'}) && $env{'request.role.adv'}) {
1.4 matthew 246: $tableheader =<<"END";
1.2 matthew 247: </p><p>
1.1 matthew 248: <table border="2">
1.23 www 249: <tr><th>$lt{'ro'}</th><th> </th><th>$lt{'as'}</th>
1.1 matthew 250: END
1.4 matthew 251: } else {
252: $tableheader =<<"END";
253: </p><p>
254: <table border="2">
1.23 www 255: <tr><th> </th><th>$lt{'as'}</th>
1.4 matthew 256: END
257: }
1.1 matthew 258: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
259: if ($label_num<$num_uneditable) {
260: $tableheader.='<td bgcolor="#FFDDDD">';
261: } else {
262: $tableheader.='<td>';
263: }
264: $tableheader.="<b><font size=+1>$_</font></b></td>";
265: }
266: $tableheader.="\n";
267: #
268: my $num_output = 1;
269: if (scalar(@Sequences)< 1) {
270: &initialize_sequence_cache();
271: }
272: foreach my $Sequence (@Sequences) {
1.28 matthew 273: $r->print("<h3>".$Sequence->compTitle."</h3>\n");
1.36 bowersj2 274:
275: my @resources = &get_resources($Sequence);
276: my $first_rownum =
277: $self->get_row_number_from_key($resources[0]->symb);
278: my $last_rownum =
279: $self->get_row_number_from_key($resources[-1]->symb);
280: $r->print(&assess_file_selector([$first_rownum, $last_rownum],
281: undef, \@AssessFileNames));
282:
1.1 matthew 283: $r->print($tableheader);
1.36 bowersj2 284: foreach my $resource (@resources) {
1.28 matthew 285: my $rownum = $self->get_row_number_from_key($resource->symb);
1.1 matthew 286: my $assess_filename = $self->{'row_source'}->{$rownum};
1.2 matthew 287: my $row_output = '<tr>';
288: if ($editing_is_allowed) {
289: $row_output .= '<td>'.$rownum.'</td>';
1.14 matthew 290: $row_output .= '<td>'.$self->convenience_links($resource).'</td>';
1.2 matthew 291: $row_output .= '<td>'.
292: '<a href="/adm/assesscalc?sname='.$self->{'name'}.
293: '&sdomain='.$self->{'domain'}.
294: '&filename='.$assess_filename.
1.28 matthew 295: '&usymb='.&Apache::lonnet::escape($resource->symb).
296: '">'.$resource->compTitle.'</a><br />';
1.2 matthew 297: $row_output .= &assess_file_selector($rownum,
298: $assess_filename,
299: \@AssessFileNames).
300: '</td>';
301: } else {
1.28 matthew 302: $row_output .= '<td><a href="'.$resource->src.'?symb='.
303: &Apache::lonnet::escape($resource->symb).
1.4 matthew 304: '">Go To</a>';
1.28 matthew 305: $row_output .= '</td><td>'.$resource->compTitle.'</td>';
1.2 matthew 306: }
1.4 matthew 307: if ($self->blackout() && $self->{'blackout_rows'}->{$rownum}>0) {
308: $row_output .=
1.23 www 309: '<td colspan="52">'.&mt('Unavailable at this time').'</td></tr>'."\n";
1.4 matthew 310: } else {
1.12 matthew 311: $row_output .= $self->html_row($num_uneditable,$rownum,
312: $exportcolor,$importcolor).
1.4 matthew 313: "</tr>\n";
314: }
1.1 matthew 315: $r->print($row_output);
316: }
317: $r->print("</table>\n");
318: }
1.2 matthew 319: $r->print("</p>\n");
1.1 matthew 320: return;
321: }
322:
323: ########################################################
324: ########################################################
325:
326: =pod
327:
328: =item &assess_file_selector()
329:
330: =cut
331:
332: ########################################################
333: ########################################################
334: sub assess_file_selector {
335: my ($row,$default,$AssessFiles)=@_;
1.2 matthew 336: if (!defined($AssessFiles) || ! @$AssessFiles) {
337: return '';
338: }
1.30 albertel 339: return '' if (! &Apache::lonnet::allowed('mgr',$env{'request.course.id'}));
1.36 bowersj2 340: my $element_name;
341: my $source_row = $row;
342: if (ref($row)) {
343: my ($first_rownum, $last_rownum) = @$row;
344: $element_name = "FileSelect_${first_rownum}_${last_rownum}";
345: $source_row = "${first_rownum}:${last_rownum}";
346: } else {
347: $element_name = 'FileSelect_'.$row;
348: }
1.1 matthew 349: my $load_dialog = '<select size="1" name="'.$element_name.'" '.
350: 'onchange="'.
1.36 bowersj2 351: "document.sheet.cell.value='source_${source_row}';".
1.1 matthew 352: "document.sheet.newformula.value=document.sheet.$element_name\.value;".
353: 'document.sheet.submit()" '.'>'."\n";
1.36 bowersj2 354: if (ref($row)) {
355: $load_dialog .= ' <option name="" value="">' .
356: &mt("Select spreadsheet for entire sequence")
357: . "</option>\n";
358: }
1.1 matthew 359: foreach my $file (@{$AssessFiles}) {
360: $load_dialog .= ' <option name="'.$file.'"';
361: $load_dialog .= ' selected' if ($default eq $file);
362: $load_dialog .= '>'.$file."</option>\n";
363: }
364: $load_dialog .= "</select>\n";
365: return $load_dialog;
366: }
367:
368: sub modify_cell {
369: my $self = shift;
370: my ($cell,$formula) = @_;
1.36 bowersj2 371:
372: my $set_row = sub {
373: my $row = shift;
374: my $formula = shift;
375: my $cell = 'A' . $row;
1.1 matthew 376: $self->{'row_source'}->{$row} = $formula;
377: my $original_source = $self->formula($cell);
378: if ($original_source =~ /__&&&__/) {
379: ($original_source,undef) = split('__&&&__',$original_source);
380: }
381: $formula = $original_source.'__&&&__'.$formula;
1.36 bowersj2 382: $self->set_formula($cell,$formula);
383: };
384:
385: if ($cell =~ /^source_(\d+):(\d+)$/) {
386: my $first_row = $1;
387: my $last_row = $2;
388: for my $row ($first_row..$last_row) {
389: $set_row->($row, $formula);
390: }
391: } elsif ($cell =~ /^source_(\d+)$/) {
392: # Need to make sure $formula is a valid filename....
393: my $row = $1;
394: $set_row->($row, $formula);
1.1 matthew 395: } elsif ($cell =~ /([A-z])\-/) {
396: $cell = 'template_'.$1;
1.36 bowersj2 397: $self->set_formula($cell,$formula);
1.1 matthew 398: } elsif ($cell !~ /^([A-z](\d+)|template_[A-z])$/) {
399: return;
400: }
401: $self->rebuild_stats();
402: return;
403: }
404:
1.7 matthew 405: sub csv_rows {
406: # writes the meat of the spreadsheet to an excel worksheet. Called
407: # by Spreadsheet::outsheet_excel;
1.1 matthew 408: my $self = shift;
1.25 matthew 409: my ($connection,$filehandle) = @_;
1.7 matthew 410: #
411: # Write a header row
412: $self->csv_output_row($filehandle,undef,
1.23 www 413: (&mt('Sequence or Folder'),&mt('Assessment title')));
1.7 matthew 414: #
415: # Write each assessments row
416: if (scalar(@Sequences)< 1) {
417: &initialize_sequence_cache();
418: }
419: foreach my $Sequence (@Sequences) {
1.28 matthew 420: foreach my $resource (&get_resources($Sequence)) {
421: my $rownum = $self->get_row_number_from_key($resource->symb);
422: my @assessdata = ($Sequence->compTitle,
423: $resource->compTitle);
1.7 matthew 424: $self->csv_output_row($filehandle,$rownum,@assessdata);
425: }
426: }
427: return;
1.1 matthew 428: }
1.6 matthew 429:
430: sub excel_rows {
431: # writes the meat of the spreadsheet to an excel worksheet. Called
432: # by Spreadsheet::outsheet_excel;
1.1 matthew 433: my $self = shift;
1.29 matthew 434: my ($connection,$worksheet,$cols_output,$rows_output,$format) = @_;
1.6 matthew 435: #
436: # Write a header row
437: $cols_output = 0;
438: foreach my $value ('Container','Assessment title') {
1.29 matthew 439: $worksheet->write($rows_output,$cols_output++,&mt($value),$format->{'h4'});
1.6 matthew 440: }
441: $rows_output++;
442: #
443: # Write each assessments row
444: if (scalar(@Sequences)< 1) {
445: &initialize_sequence_cache();
446: }
447: foreach my $Sequence (@Sequences) {
1.28 matthew 448: foreach my $resource (&get_resources($Sequence)) {
449: my $rownum = $self->get_row_number_from_key($resource->symb);
450: my @assessdata = ($Sequence->compTitle,
451: $resource->compTitle);
1.6 matthew 452: $self->excel_output_row($worksheet,$rownum,$rows_output++,
453: @assessdata);
454: }
455: }
456: return;
1.1 matthew 457: }
1.6 matthew 458:
1.1 matthew 459: sub outsheet_recursive_excel {
460: my $self = shift;
461: my ($r) = @_;
462: }
463:
1.22 matthew 464: ##
465: ## Routines to deal with sequences in the safe space
466: ##
467: sub get_rows_in_sequence {
468: my $self = shift();
469: my ($sequence) = @_;
470: my @Rows;
1.28 matthew 471: my @resources = &get_resources($sequence);
472: foreach my $resource (@resources) {
473: my $rownum = $self->get_row_number_from_key($resource->symb);
474: push (@Rows,$rownum);
1.22 matthew 475: }
476: return @Rows;
477: }
478:
479: sub remove_sequence_data_from_safe_space {
480: my $self = shift();
481: my $command = 'undef(%Sequence_Rows);';
482: $self->{'safe'}->reval($command);
483: }
484:
485: sub put_sequence_data_in_safe_space {
486: my $self = shift();
487: my $data = 'undef(%Sequence_Rows);';
488: # Build up the %Sequence_Rows hash - each sequence title is associated with
489: # an array pointer, which holds the rows in the sequence.
490: foreach my $seq (@Sequences) {
491: my @Rows = $self->get_rows_in_sequence($seq);
492: #
493: # Potential problems with sequence titles:
494: # 1. duplicate titles - they get the total for the titles
495: # 2. control characters in titles - use q{} around the string to
496: # deal with it.
1.34 albertel 497: my $title = &HTML::Entities::decode($seq->title());
1.22 matthew 498: $title =~ s/&\#058;/:/g;
499: if (@Rows) {
500: $data .= 'push(@{$Sequence_Rows{"'.quotemeta($title).'"}},'.
501: '('.join(',',@Rows).'));'."\n";;
502: }
503: }
504: my $new_code = $data.<<'END';
505: sub SUMSEQ {
506: my ($col,@titles) = @_;
507: return 'bad column: '.$col if ($col !~ /^[A-z]$/);
508: my $sum = 0;
509: foreach my $title (@titles) {
510: while (my ($seq_title,$rows) = each(%Sequence_Rows)) {
511: my $regexp;
512: if ($title =~ /^regexp:(.*)$/) {
513: $regexp = $1;
514: } elsif (lc($title) eq 'all') {
515: $regexp = '.';
516: }
517: if (defined($regexp)) {
518: next if ($seq_title !~ /$regexp/);
519: } else {
520: next if ($seq_title ne $title);
521: }
522: foreach my $rownum (@{$rows}) {
523: my $cell = $col.$rownum;
524: if (exists($sheet_values{$cell})) {
525: $sum += $sheet_values{$cell};
526: }
527: }
528: }
529: }
530: return $sum;
531: }
532: END
533: $self->{'safe'}->reval($new_code);
534: return;
535: }
536:
537: ##
538: ## Main computation method
539: ##
1.1 matthew 540: sub compute {
541: my $self = shift;
1.18 matthew 542: my ($r) = @_;
1.1 matthew 543: if (! defined($current_course) ||
1.30 albertel 544: $current_course ne $env{'request.course.id'} ||
1.22 matthew 545: ! @Sequences ) {
1.30 albertel 546: $current_course = $env{'request.course.id'};
1.1 matthew 547: &clear_package();
548: &initialize_sequence_cache();
549: }
550: $self->initialize_safe_space();
1.28 matthew 551: &Apache::assesscalc::initialize_package($self->{'name'},$self->{'domain'},
552: $navmap);
1.1 matthew 553: my %f = $self->formulas();
554: #
555: # Process the formulas list -
556: # the formula for the A column of a row is symb__&&__filename
557: my %c = $self->constants();
1.22 matthew 558: foreach my $seq (@Sequences) {
1.28 matthew 559: foreach my $resource (&get_resources($seq)) {
560: my $rownum = $self->get_row_number_from_key($resource->symb);
1.1 matthew 561: my $cell = 'A'.$rownum;
562: my $assess_filename = 'Default';
563: if (exists($self->{'row_source'}->{$rownum})) {
564: $assess_filename = $self->{'row_source'}->{$rownum};
565: } else {
566: $self->{'row_source'}->{$rownum} = $assess_filename;
567: }
1.28 matthew 568: $f{$cell} = $resource->symb.'__&&&__'.$assess_filename;
1.24 matthew 569: my $assessSheet;
570: $assessSheet = Apache::assesscalc->new($self->{'name'},
571: $self->{'domain'},
572: $assess_filename,
1.37 albertel 573: $resource->symb,
1.38 ! raeburn 574: $self->{'section'},
! 575: $self->{'group'});
1.18 matthew 576: my @exportdata = $assessSheet->export_data($r);
1.24 matthew 577: #
578: if ($assessSheet->badcalc()) {
579: $self->set_calcerror(
580: &mt('Error computing row for assessment "[_1]" (row [_2]):[_3]',
581: $assessSheet->get_title(),$rownum,$assessSheet->calcerror()));
582: }
583: #
1.4 matthew 584: if ($assessSheet->blackout()) {
585: $self->blackout(1);
586: $self->{'blackout_rows'}->{$rownum} = 1;
587: }
1.1 matthew 588: #
589: # Be sure not to disturb the formulas in the 'A' column
590: my $data = shift(@exportdata);
591: $c{$cell} = $data if (defined($data));
592: #
593: # Deal with the remaining columns
594: my $i=0;
595: foreach (split(//,'BCDEFGHIJKLMNOPQRSTUVWXYZ')) {
596: my $cell = $_.$rownum;
597: my $data = shift(@exportdata);
598: if (defined($data)) {
599: $f{$cell} = 'import';
600: $c{$cell} = $data;
601: }
602: $i++;
603: }
604: }
605: }
606: $self->constants(\%c);
607: $self->formulas(\%f);
1.22 matthew 608: $self->put_sequence_data_in_safe_space();
1.1 matthew 609: $self->calcsheet();
1.22 matthew 610: $self->remove_sequence_data_from_safe_space();
1.1 matthew 611: #
612: # Store export row in cache
613: my @exportarray=$self->exportrow();
614: my $student = $self->{'name'}.':'.$self->{'domain'};
615: $Exportrows{$student}->{'time'} = time;
616: $Exportrows{$student}->{'data'} = \@exportarray;
617: # save export row
618: $self->save_export_data();
1.9 matthew 619: #
620: $self->save() if ($self->need_to_save());
621: return;
622: }
623:
624: sub set_row_sources {
625: my $self = shift;
1.35 albertel 626: $self->check_formulas_loaded();
1.9 matthew 627: while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
1.17 matthew 628: next if ($cell !~ /^A(\d+)$/ || $1 < 1);
1.9 matthew 629: my $row = $1;
630: (undef,$value) = split('__&&&__',$value);
631: $value = 'Default' if (! defined($value));
632: $self->{'row_source'}->{$row} = $value;
633: }
1.1 matthew 634: return;
635: }
636:
637: sub set_row_numbers {
638: my $self = shift;
1.35 albertel 639: $self->check_formulas_loaded();
1.1 matthew 640: while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
641: next if ($cell !~ /^A(\d+)/);
642: my $row = $1;
643: next if ($row == 0);
644: my ($symb,undef) = split('__&&&__',$formula);
645: $self->{'row_numbers'}->{$symb} = $row;
1.17 matthew 646: $self->{'maxrow'} = $row if ($row > $self->{'maxrow'});
1.1 matthew 647: }
648: }
649:
650: sub get_row_number_from_symb {
651: my $self = shift;
652: my ($key) = @_;
653: ($key,undef) = split('__&&&__',$key) if ($key =~ /__&&&__/);
654: return $self->get_row_number_from_key($key);
655: }
656:
657: #############################################
658: #############################################
659:
660: =pod
661:
662: =item &load_cached_export_rows
663:
664: Retrieves and parsers the export rows of the student spreadsheets.
665: These rows are saved in the courses directory in the format:
666:
667: sname:sdom:studentcalc:.time => time
668:
669: sname:sdom:studentcalc => ___=___Adata___;___Bdata___;___Cdata___;___ .....
670:
671: =cut
672:
673: #############################################
674: #############################################
675: sub load_cached_export_rows {
1.17 matthew 676: undef(%Exportrows);
1.1 matthew 677: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
1.30 albertel 678: $env{'course.'.$env{'request.course.id'}.'.domain'},
679: $env{'course.'.$env{'request.course.id'}.'.num'},undef);
1.1 matthew 680: my %Selected_Assess_Sheet;
681: if ($tmp[0] =~ /^error/) {
682: &Apache::lonnet::logthis('unable to read cached student export rows '.
1.30 albertel 683: 'for course '.$env{'request.course.id'});
1.1 matthew 684: return;
685: }
686: my %tmp = @tmp;
687: while (my ($key,$sheetdata) = each(%tmp)) {
688: my ($sname,$sdom,$sheettype,$remainder) = split(':',$key);
689: my $student = $sname.':'.$sdom;
690: if ($remainder =~ /\.time/) {
691: $Exportrows{$student}->{'time'} = $sheetdata;
692: } else {
693: $sheetdata =~ s/^___=___//;
694: my @Data = split('___;___',$sheetdata);
695: $Exportrows{$student}->{'data'} = \@Data;
696: }
697: }
698: }
699:
700: #############################################
701: #############################################
702:
703: =pod
704:
705: =item &save_export_data()
706:
707: Writes the export data for this student to the course cache.
708:
709: =cut
710:
711: #############################################
712: #############################################
713: sub save_export_data {
714: my $self = shift;
1.24 matthew 715: my $student = $self->{'name'}.':'.$self->{'domain'};
716: return if ($self->temporary());
717: if ($self->badcalc()){
718: # do not save data away when calculations have not been done properly.
719: delete($Exportrows{$student});
720: return;
721: }
722: return if (! exists($Exportrows{$student}));
1.20 matthew 723: &Apache::assesscalc::save_cached_export_rows($self->{'name'},
724: $self->{'domain'});
1.1 matthew 725: return if (! $self->is_default());
726: my $key = join(':',($self->{'name'},$self->{'domain'},'studentcalc')).':';
727: my $timekey = $key.'.time';
728: my $newstore = join('___;___',
729: @{$Exportrows{$student}->{'data'}});
730: $newstore = '___=___'.$newstore;
1.16 matthew 731: my $result= &Apache::lonnet::put('nohist_calculatedsheets',
1.1 matthew 732: { $key => $newstore,
733: $timekey => $Exportrows{$student}->{'time'} },
734: $self->{'cdom'},
735: $self->{'cnum'});
736: return;
737: }
738:
739: #############################################
740: #############################################
741:
742: =pod
743:
744: =item &export_data()
745:
746: Returns the export data associated with the spreadsheet. Computes the
747: spreadsheet only if necessary.
748:
749: =cut
750:
751: #############################################
752: #############################################
753: sub export_data {
754: my $self = shift;
1.18 matthew 755: my ($r) = @_;
756: my $connection = $r->connection();
1.1 matthew 757: my $student = $self->{'name'}.':'.$self->{'domain'};
758: if (! exists($Exportrows{$student}) ||
1.15 matthew 759: ! defined($Exportrows{$student}) ||
1.16 matthew 760: ! exists($Exportrows{$student}->{'data'}) ||
1.15 matthew 761: ! defined($Exportrows{$student}->{'data'}) ||
1.16 matthew 762: ! exists($Exportrows{$student}->{'time'}) ||
763: ! defined($Exportrows{$student}->{'time'}) ||
1.1 matthew 764: ! $self->check_expiration_time($Exportrows{$student}->{'time'})) {
1.18 matthew 765: $self->compute($r);
1.1 matthew 766: }
1.18 matthew 767: if ($connection->aborted()) { $self->cleanup(); return; }
1.24 matthew 768: my @Data;
769: if ($self->badcalc()) {
770: @Data = ();
771: } else {
772: @Data = @{$Exportrows{$student}->{'data'}};
773: for (my $i=0; $i<=$#Data;$i++) {
774: if ($Data[$i]=~/\D/ && defined($Data[$i])) {
775: $Data[$i]="'".$Data[$i]."'";
776: }
777: }
1.1 matthew 778: }
779: return @Data;
780: }
781:
782: 1;
783:
784: __END__
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