Annotation of loncom/interface/lonspreadsheet.pm, revision 1.129
1.79 matthew 1: #
1.129 ! matthew 2: # $Id: lonspreadsheet.pm,v 1.128 2002/10/25 15:58:35 matthew Exp $
1.79 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: #
1.1 www 26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
1.80 matthew 29: # POD required stuff:
30:
31: =head1 NAME
32:
33: lonspreadsheet
34:
35: =head1 SYNOPSIS
36:
37: Spreadsheet interface to internal LON-CAPA data
38:
39: =head1 DESCRIPTION
40:
41: Lonspreadsheet provides course coordinators the ability to manage their
42: students grades online. The students are able to view their own grades, but
43: not the grades of their peers. The spreadsheet is highly customizable,
44: offering the ability to use Perl code to manipulate data, as well as many
45: built-in functions.
46:
47: =head2 Functions available to user of lonspreadsheet
48:
49: =over 4
50:
51: =cut
1.1 www 52:
53: package Apache::lonspreadsheet;
1.36 www 54:
1.1 www 55: use strict;
56: use Safe;
1.3 www 57: use Safe::Hole;
1.1 www 58: use Opcode;
59: use Apache::lonnet;
1.7 www 60: use Apache::Constants qw(:common :http);
1.19 www 61: use GDBM_File;
1.3 www 62: use HTML::TokeParser;
1.98 matthew 63: use Apache::lonhtmlcommon;
1.118 matthew 64: use Apache::loncoursedata;
1.11 www 65: #
1.113 matthew 66: # Caches for coursewide information
67: #
68: my %Section;
69:
70: #
1.44 www 71: # Caches for previously calculated spreadsheets
72: #
73:
74: my %oldsheets;
1.46 www 75: my %loadedcaches;
1.47 www 76: my %expiredates;
1.44 www 77:
78: #
1.39 www 79: # Cache for stores of an individual user
80: #
81:
82: my $cachedassess;
83: my %cachedstores;
84:
85: #
1.11 www 86: # These cache hashes need to be independent of user, resource and course
1.27 www 87: # (user and course can/should be in the keys)
1.11 www 88: #
1.33 www 89:
90: my %spreadsheets;
91: my %courserdatas;
92: my %userrdatas;
93: my %defaultsheets;
1.35 www 94: my %updatedata;
1.27 www 95:
1.11 www 96: #
97: # These global hashes are dependent on user, course and resource,
98: # and need to be initialized every time when a sheet is calculated
99: #
100: my %courseopt;
101: my %useropt;
102: my %parmhash;
103:
1.95 www 104: #
105: # Some hashes for stats on timing and performance
106: #
107:
108: my %starttimes;
109: my %usedtimes;
1.96 www 110: my %numbertimes;
1.95 www 111:
1.28 www 112: # Stuff that only the screen handler can know
113:
114: my $includedir;
115: my $tmpdir;
116:
1.5 www 117: # =============================================================================
118: # ===================================== Implements an instance of a spreadsheet
1.4 www 119:
1.118 matthew 120: ##
121: ## mask - used to reside in the safe space.
122: ##
1.1 www 123: sub mask {
124: my ($lower,$upper)=@_;
1.125 matthew 125: #
126: my ($la,$ld) = ($lower=~/([A-Za-z]|\*)(\d+|\*)/);
127: my ($ua,$ud) = ($upper=~/([A-Za-z]|\*)(\d+|\*)/);
128: #
1.1 www 129: my $alpha='';
130: my $num='';
1.125 matthew 131: #
1.1 www 132: if (($la eq '*') || ($ua eq '*')) {
1.7 www 133: $alpha='[A-Za-z]';
1.1 www 134: } else {
1.125 matthew 135:
1.7 www 136: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
137: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
138: $alpha='['.$la.'-'.$ua.']';
139: } else {
140: $alpha='['.$la.'-Za-'.$ua.']';
141: }
1.1 www 142: }
143: if (($ld eq '*') || ($ud eq '*')) {
144: $num='\d+';
145: } else {
146: if (length($ld)!=length($ud)) {
147: $num.='(';
1.78 matthew 148: foreach ($ld=~m/\d/g) {
1.1 www 149: $num.='['.$_.'-9]';
1.78 matthew 150: }
1.1 www 151: if (length($ud)-length($ld)>1) {
152: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
153: }
154: $num.='|';
1.78 matthew 155: foreach ($ud=~m/\d/g) {
1.1 www 156: $num.='[0-'.$_.']';
1.78 matthew 157: }
1.1 www 158: $num.=')';
159: } else {
160: my @lda=($ld=~m/\d/g);
161: my @uda=($ud=~m/\d/g);
1.118 matthew 162: my $i;
163: my $j=0;
164: my $notdone=1;
1.7 www 165: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
1.1 www 166: if ($lda[$i]==$uda[$i]) {
167: $num.=$lda[$i];
168: $j=$i;
1.7 www 169: } else {
170: $notdone=0;
1.1 www 171: }
172: }
173: if ($j<$#lda-1) {
174: $num.='('.$lda[$j+1];
175: for ($i=$j+2;$i<=$#lda;$i++) {
176: $num.='['.$lda[$i].'-9]';
177: }
178: if ($uda[$j+1]-$lda[$j+1]>1) {
179: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
180: ($#lda-$j-1).'}';
181: }
182: $num.='|'.$uda[$j+1];
183: for ($i=$j+2;$i<=$#uda;$i++) {
184: $num.='[0-'.$uda[$i].']';
185: }
186: $num.=')';
187: } else {
1.125 matthew 188: if ($lda[-1]!=$uda[-1]) {
189: $num.='['.$lda[-1].'-'.$uda[-1].']';
1.7 www 190: }
1.1 www 191: }
192: }
193: }
1.4 www 194: return '^'.$alpha.$num."\$";
1.80 matthew 195: }
196:
1.118 matthew 197:
198:
199: sub initsheet {
200: my $safeeval = new Safe(shift);
201: my $safehole = new Safe::Hole;
202: $safeeval->permit("entereval");
203: $safeeval->permit(":base_math");
204: $safeeval->permit("sort");
205: $safeeval->deny(":base_io");
206: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
207: $safehole->wrap(\&Apache::lonspreadsheet::mask,$safeeval,'&mask');
208: $safeeval->share('$@');
209: my $code=<<'ENDDEFS';
210: # ---------------------------------------------------- Inside of the safe space
211:
212: #
213: # f: formulas
214: # t: intermediate format (variable references expanded)
215: # v: output values
216: # c: preloaded constants (A-column)
217: # rl: row label
218: # os: other spreadsheets (for student spreadsheet only)
219:
1.119 matthew 220: undef %sheet_values; # Holds the (computed, final) values for the sheet
221: # This is only written to by &calc, the spreadsheet computation routine.
222: # It is read by many functions
223: undef %t; # Holds the values of the spreadsheet temporarily. Set in &sett,
224: # which does the translation of strings like C5 into the value in C5.
225: # Used in &calc - %t holds the values that are actually eval'd.
226: undef %f; # Holds the formulas for each cell. This is the users
227: # (spreadsheet authors) data for each cell.
228: # set by &setformulas and returned by &getformulas
229: # &setformulas is called by &readsheet, &tmpread, &updateclasssheet,
230: # &updatestudentassesssheet, &loadstudent, &loadcourse
231: # &getformulas is called by &writesheet, &tmpwrite, &updateclasssheet,
232: # &updatestudentassesssheet, &loadstudent, &loadcourse, &loadassessment,
233: undef %c; # Holds the constants for a sheet. In the assessment
234: # sheets, this is the A column. Used in &MINPARM, &MAXPARM, &expandnamed,
235: # &sett, and &setconstants. There is no &getconstants.
236: # &setconstants is called by &loadstudent, &loadcourse, &load assessment,
237: undef @os; # Holds the names of other spreadsheets - this is used to specify
238: # the spreadsheets that are available for the assessment sheet.
239: # Set by &setothersheets. &setothersheets is called by &handler. A
240: # related subroutine is &othersheets.
1.118 matthew 241:
242: $maxrow = 0;
243: $sheettype = '';
244:
245: # filename/reference of the sheet
246: $filename = '';
247:
248: # user data
249: $uname = '';
250: $uhome = '';
251: $udom = '';
252:
253: # course data
254:
255: $csec = '';
256: $chome= '';
257: $cnum = '';
258: $cdom = '';
259: $cid = '';
260: $coursefilename = '';
261:
262: # symb
263:
264: $usymb = '';
265:
266: # error messages
267: $errormsg = '';
268:
269:
1.80 matthew 270: #-------------------------------------------------------
271:
272: =item UWCALC(hashname,modules,units,date)
273:
274: returns the proportion of the module
275: weights not previously completed by the student.
276:
277: =over 4
278:
279: =item hashname
280:
281: name of the hash the module dates have been inserted into
282:
283: =item modules
284:
285: reference to a cell which contains a comma deliminated list of modules
286: covered by the assignment.
287:
288: =item units
289:
290: reference to a cell which contains a comma deliminated list of module
291: weights with respect to the assignment
292:
293: =item date
294:
295: reference to a cell which contains the date the assignment was completed.
296:
297: =back
298:
299: =cut
300:
301: #-------------------------------------------------------
302: sub UWCALC {
303: my ($hashname,$modules,$units,$date) = @_;
304: my @Modules = split(/,/,$modules);
305: my @Units = split(/,/,$units);
306: my $total_weight;
307: foreach (@Units) {
308: $total_weight += $_;
309: }
310: my $usum=0;
311: for (my $i=0; $i<=$#Modules; $i++) {
312: if (&HASH($hashname,$Modules[$i]) eq $date) {
313: $usum += $Units[$i];
314: }
315: }
316: return $usum/$total_weight;
317: }
318:
319: #-------------------------------------------------------
320:
321: =item CDLSUM(list)
322:
323: returns the sum of the elements in a cell which contains
324: a Comma Deliminate List of numerical values.
325: 'list' is a reference to a cell which contains a comma deliminated list.
326:
327: =cut
328:
329: #-------------------------------------------------------
330: sub CDLSUM {
331: my ($list)=@_;
332: my $sum;
333: foreach (split/,/,$list) {
334: $sum += $_;
335: }
336: return $sum;
337: }
338:
339: #-------------------------------------------------------
340:
341: =item CDLITEM(list,index)
342:
343: returns the item at 'index' in a Comma Deliminated List.
344:
345: =over 4
346:
347: =item list
348:
349: reference to a cell which contains a comma deliminated list.
350:
351: =item index
352:
353: the Perl index of the item requested (first element in list has
354: an index of 0)
355:
356: =back
357:
358: =cut
359:
360: #-------------------------------------------------------
361: sub CDLITEM {
362: my ($list,$index)=@_;
363: my @Temp = split/,/,$list;
364: return $Temp[$index];
365: }
366:
367: #-------------------------------------------------------
368:
369: =item CDLHASH(name,key,value)
370:
371: loads a comma deliminated list of keys into
372: the hash 'name', all with a value of 'value'.
373:
374: =over 4
375:
376: =item name
377:
378: name of the hash.
379:
380: =item key
381:
382: (a pointer to) a comma deliminated list of keys.
383:
384: =item value
385:
386: a single value to be entered for each key.
387:
388: =back
389:
390: =cut
391:
392: #-------------------------------------------------------
393: sub CDLHASH {
394: my ($name,$key,$value)=@_;
395: my @Keys;
396: my @Values;
397: # Check to see if we have multiple $key values
398: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
399: my $keymask = &mask($key);
400: # Assume the keys are addresses
1.104 matthew 401: my @Temp = grep /$keymask/,keys(%sheet_values);
402: @Keys = $sheet_values{@Temp};
1.80 matthew 403: } else {
404: $Keys[0]= $key;
405: }
406: my @Temp;
407: foreach $key (@Keys) {
408: @Temp = (@Temp, split/,/,$key);
409: }
410: @Keys = @Temp;
411: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
412: my $valmask = &mask($value);
1.104 matthew 413: my @Temp = grep /$valmask/,keys(%sheet_values);
414: @Values =$sheet_values{@Temp};
1.80 matthew 415: } else {
416: $Values[0]= $value;
417: }
418: $value = $Values[0];
419: # Add values to hash
420: for (my $i = 0; $i<=$#Keys; $i++) {
421: my $key = $Keys[$i];
422: if (! exists ($hashes{$name}->{$key})) {
423: $hashes{$name}->{$key}->[0]=$value;
424: } else {
425: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
426: $hashes{$name}->{$key} = \@Temp;
427: }
428: }
429: return "hash '$name' updated";
430: }
431:
432: #-------------------------------------------------------
433:
434: =item GETHASH(name,key,index)
435:
436: returns the element in hash 'name'
437: reference by the key 'key', at index 'index' in the values list.
438:
439: =cut
440:
441: #-------------------------------------------------------
442: sub GETHASH {
443: my ($name,$key,$index)=@_;
444: if (! defined($index)) {
445: $index = 0;
446: }
447: if ($key =~ /^[A-z]\d+$/) {
1.104 matthew 448: $key = $sheet_values{$key};
1.80 matthew 449: }
450: return $hashes{$name}->{$key}->[$index];
451: }
452:
453: #-------------------------------------------------------
454:
455: =item CLEARHASH(name)
456:
457: clears all the values from the hash 'name'
458:
459: =item CLEARHASH(name,key)
460:
461: clears all the values from the hash 'name' associated with the given key.
462:
463: =cut
464:
465: #-------------------------------------------------------
466: sub CLEARHASH {
467: my ($name,$key)=@_;
468: if (defined($key)) {
469: if (exists($hashes{$name}->{$key})) {
470: $hashes{$name}->{$key}=undef;
471: return "hash '$name' key '$key' cleared";
472: }
473: } else {
474: if (exists($hashes{$name})) {
475: $hashes{$name}=undef;
476: return "hash '$name' cleared";
477: }
478: }
479: return "Error in clearing hash";
480: }
481:
482: #-------------------------------------------------------
483:
484: =item HASH(name,key,value)
485:
486: loads values into an internal hash. If a key
487: already has a value associated with it, the values are sorted numerically.
488:
489: =item HASH(name,key)
490:
491: returns the 0th value in the hash 'name' associated with 'key'.
492:
493: =cut
494:
495: #-------------------------------------------------------
496: sub HASH {
497: my ($name,$key,$value)=@_;
498: my @Keys;
499: undef @Keys;
500: my @Values;
501: # Check to see if we have multiple $key values
502: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
503: my $keymask = &mask($key);
504: # Assume the keys are addresses
1.104 matthew 505: my @Temp = grep /$keymask/,keys(%sheet_values);
506: @Keys = $sheet_values{@Temp};
1.80 matthew 507: } else {
508: $Keys[0]= $key;
509: }
510: # If $value is empty, return the first value associated
511: # with the first key.
512: if (! $value) {
513: return $hashes{$name}->{$Keys[0]}->[0];
514: }
515: # Check to see if we have multiple $value(s)
516: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
517: my $valmask = &mask($value);
1.104 matthew 518: my @Temp = grep /$valmask/,keys(%sheet_values);
519: @Values =$sheet_values{@Temp};
1.80 matthew 520: } else {
521: $Values[0]= $value;
522: }
523: # Add values to hash
524: for (my $i = 0; $i<=$#Keys; $i++) {
525: my $key = $Keys[$i];
526: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
527: if (! exists ($hashes{$name}->{$key})) {
528: $hashes{$name}->{$key}->[0]=$value;
529: } else {
530: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
531: $hashes{$name}->{$key} = \@Temp;
532: }
533: }
534: return $Values[-1];
1.1 www 535: }
536:
1.84 matthew 537: #-------------------------------------------------------
538:
539: =item NUM(range)
540:
541: returns the number of items in the range.
542:
543: =cut
544:
545: #-------------------------------------------------------
1.1 www 546: sub NUM {
547: my $mask=mask(@_);
1.104 matthew 548: my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
1.1 www 549: return $num;
550: }
551:
552: sub BIN {
553: my ($low,$high,$lower,$upper)=@_;
554: my $mask=mask($lower,$upper);
555: my $num=0;
1.104 matthew 556: foreach (grep /$mask/,keys(%sheet_values)) {
557: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
1.1 www 558: $num++;
559: }
1.78 matthew 560: }
1.1 www 561: return $num;
562: }
563:
564:
1.84 matthew 565: #-------------------------------------------------------
566:
567: =item SUM(range)
568:
569: returns the sum of items in the range.
570:
571: =cut
572:
573: #-------------------------------------------------------
1.1 www 574: sub SUM {
575: my $mask=mask(@_);
576: my $sum=0;
1.104 matthew 577: foreach (grep /$mask/,keys(%sheet_values)) {
578: $sum+=$sheet_values{$_};
1.78 matthew 579: }
1.1 www 580: return $sum;
581: }
582:
1.84 matthew 583: #-------------------------------------------------------
584:
585: =item MEAN(range)
586:
587: compute the average of the items in the range.
588:
589: =cut
590:
591: #-------------------------------------------------------
1.1 www 592: sub MEAN {
593: my $mask=mask(@_);
594: my $sum=0; my $num=0;
1.104 matthew 595: foreach (grep /$mask/,keys(%sheet_values)) {
596: $sum+=$sheet_values{$_};
1.1 www 597: $num++;
1.78 matthew 598: }
1.1 www 599: if ($num) {
600: return $sum/$num;
601: } else {
602: return undef;
603: }
604: }
605:
1.84 matthew 606: #-------------------------------------------------------
607:
608: =item STDDEV(range)
609:
610: compute the standard deviation of the items in the range.
611:
612: =cut
613:
614: #-------------------------------------------------------
1.1 www 615: sub STDDEV {
616: my $mask=mask(@_);
617: my $sum=0; my $num=0;
1.104 matthew 618: foreach (grep /$mask/,keys(%sheet_values)) {
619: $sum+=$sheet_values{$_};
1.1 www 620: $num++;
1.78 matthew 621: }
1.1 www 622: unless ($num>1) { return undef; }
623: my $mean=$sum/$num;
624: $sum=0;
1.104 matthew 625: foreach (grep /$mask/,keys(%sheet_values)) {
626: $sum+=($sheet_values{$_}-$mean)**2;
1.78 matthew 627: }
1.1 www 628: return sqrt($sum/($num-1));
629: }
630:
1.84 matthew 631: #-------------------------------------------------------
632:
633: =item PROD(range)
634:
635: compute the product of the items in the range.
636:
637: =cut
638:
639: #-------------------------------------------------------
1.1 www 640: sub PROD {
641: my $mask=mask(@_);
642: my $prod=1;
1.104 matthew 643: foreach (grep /$mask/,keys(%sheet_values)) {
644: $prod*=$sheet_values{$_};
1.78 matthew 645: }
1.1 www 646: return $prod;
647: }
648:
1.84 matthew 649: #-------------------------------------------------------
650:
651: =item MAX(range)
652:
653: compute the maximum of the items in the range.
654:
655: =cut
656:
657: #-------------------------------------------------------
1.1 www 658: sub MAX {
659: my $mask=mask(@_);
660: my $max='-';
1.104 matthew 661: foreach (grep /$mask/,keys(%sheet_values)) {
662: unless ($max) { $max=$sheet_values{$_}; }
663: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
1.78 matthew 664: }
1.1 www 665: return $max;
666: }
667:
1.84 matthew 668: #-------------------------------------------------------
669:
670: =item MIN(range)
671:
672: compute the minimum of the items in the range.
673:
674: =cut
675:
676: #-------------------------------------------------------
1.1 www 677: sub MIN {
678: my $mask=mask(@_);
679: my $min='-';
1.104 matthew 680: foreach (grep /$mask/,keys(%sheet_values)) {
681: unless ($max) { $max=$sheet_values{$_}; }
682: if (($sheet_values{$_}<$min) || ($min eq '-')) {
683: $min=$sheet_values{$_};
684: }
1.78 matthew 685: }
1.1 www 686: return $min;
687: }
688:
1.84 matthew 689: #-------------------------------------------------------
690:
691: =item SUMMAX(num,lower,upper)
692:
693: compute the sum of the largest 'num' items in the range from
694: 'lower' to 'upper'
695:
696: =cut
697:
698: #-------------------------------------------------------
1.1 www 699: sub SUMMAX {
700: my ($num,$lower,$upper)=@_;
701: my $mask=mask($lower,$upper);
702: my @inside=();
1.104 matthew 703: foreach (grep /$mask/,keys(%sheet_values)) {
704: push (@inside,$sheet_values{$_});
1.78 matthew 705: }
1.1 www 706: @inside=sort(@inside);
707: my $sum=0; my $i;
708: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
709: $sum+=$inside[$i];
710: }
711: return $sum;
712: }
713:
1.84 matthew 714: #-------------------------------------------------------
715:
716: =item SUMMIN(num,lower,upper)
717:
718: compute the sum of the smallest 'num' items in the range from
719: 'lower' to 'upper'
720:
721: =cut
722:
723: #-------------------------------------------------------
1.1 www 724: sub SUMMIN {
725: my ($num,$lower,$upper)=@_;
726: my $mask=mask($lower,$upper);
727: my @inside=();
1.104 matthew 728: foreach (grep /$mask/,keys(%sheet_values)) {
729: $inside[$#inside+1]=$sheet_values{$_};
1.78 matthew 730: }
1.1 www 731: @inside=sort(@inside);
732: my $sum=0; my $i;
733: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
734: $sum+=$inside[$i];
735: }
736: return $sum;
737: }
738:
1.103 matthew 739: #-------------------------------------------------------
740:
741: =item MINPARM(parametername)
742:
743: Returns the minimum value of the parameters matching the parametername.
744: parametername should be a string such as 'duedate'.
745:
746: =cut
747:
748: #-------------------------------------------------------
749: sub MINPARM {
750: my ($expression) = @_;
751: my $min = undef;
1.124 matthew 752: study($expression);
1.103 matthew 753: foreach $parameter (keys(%c)) {
754: next if ($parameter !~ /$expression/);
755: if ((! defined($min)) || ($min > $c{$parameter})) {
756: $min = $c{$parameter}
757: }
758: }
759: return $min;
760: }
761:
762: #-------------------------------------------------------
763:
764: =item MAXPARM(parametername)
765:
766: Returns the maximum value of the parameters matching the input parameter name.
767: parametername should be a string such as 'duedate'.
768:
769: =cut
770:
771: #-------------------------------------------------------
772: sub MAXPARM {
773: my ($expression) = @_;
774: my $max = undef;
1.124 matthew 775: study($expression);
1.103 matthew 776: foreach $parameter (keys(%c)) {
777: next if ($parameter !~ /$expression/);
778: if ((! defined($min)) || ($max < $c{$parameter})) {
779: $max = $c{$parameter}
780: }
781: }
782: return $max;
783: }
784:
785: #--------------------------------------------------------
1.59 www 786: sub expandnamed {
787: my $expression=shift;
788: if ($expression=~/^\&/) {
789: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
790: my @vars=split(/\W+/,$formula);
791: my %values=();
792: undef %values;
1.78 matthew 793: foreach ( @vars ) {
1.59 www 794: my $varname=$_;
795: if ($varname=~/\D/) {
796: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
797: $varname=~s/$var/\(\\w\+\)/g;
1.78 matthew 798: foreach (keys(%c)) {
1.59 www 799: if ($_=~/$varname/) {
800: $values{$1}=1;
801: }
1.78 matthew 802: }
1.59 www 803: }
1.78 matthew 804: }
1.59 www 805: if ($func eq 'EXPANDSUM') {
806: my $result='';
1.78 matthew 807: foreach (keys(%values)) {
1.59 www 808: my $thissum=$formula;
809: $thissum=~s/$var/$_/g;
810: $result.=$thissum.'+';
1.78 matthew 811: }
1.59 www 812: $result=~s/\+$//;
813: return $result;
814: } else {
815: return 0;
816: }
817: } else {
1.88 matthew 818: # it is not a function, so it is a parameter name
819: # We should do the following:
820: # 1. Take the list of parameter names
821: # 2. look through the list for ones that match the parameter we want
822: # 3. If there are no collisions, return the one that matches
823: # 4. If there is a collision, return 'bad parameter name error'
824: my $returnvalue = '';
825: my @matches = ();
826: $#matches = -1;
1.124 matthew 827: study $expression;
1.88 matthew 828: foreach $parameter (keys(%c)) {
829: push @matches,$parameter if ($parameter =~ /$expression/);
830: }
1.129 ! matthew 831: if (scalar(@matches) == 0) {
! 832: $returnvalue = 'unmatched parameter: '.$parameter;
1.128 matthew 833: } elsif (scalar(@matches) == 1) {
1.88 matthew 834: $returnvalue = '$c{\''.$matches[0].'\'}';
1.128 matthew 835: } elsif (scalar(@matches) > 0) {
1.100 matthew 836: # more than one match. Look for a concise one
837: $returnvalue = "'non-unique parameter name : $expression'";
838: foreach (@matches) {
839: if (/^$expression$/) {
840: $returnvalue = '$c{\''.$_.'\'}';
841: }
842: }
1.129 ! matthew 843: } else {
! 844: # There was a negative number of matches, which indicates
! 845: # something is wrong with reality. Better warn the user.
! 846: $returnvalue = 'bizzare parameter: '.$parameter;
1.88 matthew 847: }
848: return $returnvalue;
1.59 www 849: }
850: }
851:
1.1 www 852: sub sett {
853: %t=();
1.16 www 854: my $pattern='';
855: if ($sheettype eq 'assesscalc') {
856: $pattern='A';
857: } else {
858: $pattern='[A-Z]';
859: }
1.104 matthew 860: # Deal with the template row
1.78 matthew 861: foreach (keys(%f)) {
1.104 matthew 862: next if ($_!~/template\_(\w)/);
863: my $col=$1;
864: next if ($col=~/^$pattern/);
865: foreach (keys(%f)) {
866: next if ($_!~/A(\d+)/);
867: my $trow=$1;
868: next if (! $trow);
869: # Get the name of this cell
870: my $lb=$col.$trow;
871: # Grab the template declaration
872: $t{$lb}=$f{'template_'.$col};
873: # Replace '#' with the row number
874: $t{$lb}=~s/\#/$trow/g;
875: # Replace '....' with ','
876: $t{$lb}=~s/\.\.+/\,/g;
877: # Replace 'A0' with the value from 'A0'
878: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
879: # Replace parameters
880: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
881: }
1.78 matthew 882: }
1.104 matthew 883: # Deal with the normal cells
1.78 matthew 884: foreach (keys(%f)) {
1.112 matthew 885: if (exists($f{$_}) && ($_!~/template\_/)) {
1.42 www 886: my $matches=($_=~/^$pattern(\d+)/);
887: if (($matches) && ($1)) {
1.6 www 888: unless ($f{$_}=~/^\!/) {
889: $t{$_}=$c{$_};
890: }
891: } else {
892: $t{$_}=$f{$_};
1.7 www 893: $t{$_}=~s/\.\.+/\,/g;
1.104 matthew 894: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
1.59 www 895: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
1.6 www 896: }
1.1 www 897: }
1.78 matthew 898: }
1.104 matthew 899: # For inserted lines, [B-Z] is also valid
1.97 www 900: unless ($sheettype eq 'assesscalc') {
901: foreach (keys(%f)) {
902: if ($_=~/[B-Z](\d+)/) {
903: if ($f{'A'.$1}=~/^[\~\-]/) {
904: $t{$_}=$f{$_};
905: $t{$_}=~s/\.\.+/\,/g;
1.104 matthew 906: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
1.97 www 907: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
908: }
909: }
910: }
911: }
1.88 matthew 912: # For some reason 'A0' gets special treatment... This seems superfluous
913: # but I imagine it is here for a reason.
1.17 www 914: $t{'A0'}=$f{'A0'};
915: $t{'A0'}=~s/\.\.+/\,/g;
1.104 matthew 916: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
1.59 www 917: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
1.1 www 918: }
919:
1.124 matthew 920: sub calc {
921: undef %sheet_values;
922: &sett();
923: my $notfinished=1;
924: my $lastcalc='';
925: my $depth=0;
926: while ($notfinished) {
927: $notfinished=0;
928: foreach (keys(%t)) {
929: my $old=$sheet_values{$_};
930: $sheet_values{$_}=eval $t{$_};
931: if ($@) {
932: undef %sheet_values;
933: return $_.': '.$@;
934: }
935: if ($sheet_values{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
936: }
937: $depth++;
938: if ($depth>100) {
939: undef %sheet_values;
940: return $lastcalc.': Maximum calculation depth exceeded';
941: }
942: }
943: return '';
944: }
945:
1.122 matthew 946: # ------------------------------------------- End of "Inside of the safe space"
947: ENDDEFS
948: $safeeval->reval($code);
949: return $safeeval;
950: }
951:
1.104 matthew 952: #
1.129 ! matthew 953: #
1.104 matthew 954: #
1.122 matthew 955: sub templaterow {
956: my $sheet = shift;
957: my @cols=();
958: $cols[0]='<b><font size=+1>Template</font></b>';
959: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
960: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
961: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
962: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
963: my $fm=$sheet->{'f'}->{'template_'.$_};
964: $fm=~s/[\'\"]/\&\#34;/g;
965: push(@cols,"'template_$_','$fm'".'___eq___'.$fm);
966: }
967: return @cols;
968: }
969:
970:
1.16 www 971: sub outrowassess {
1.104 matthew 972: # $n is the current row number
1.122 matthew 973: my $sheet = shift;
1.120 matthew 974: my $n=shift;
1.122 matthew 975: my $csv = $ENV{'form.showcsv'};
1.6 www 976: my @cols=();
977: if ($n) {
1.122 matthew 978: my ($usy,$ufn)=split(/__&&&\__/,$sheet->{'f'}->{'A'.$n});
979: if ($sheet->{'rowlabel'}->{$usy}) {
1.125 matthew 980: $cols[0]=&format_rowlabel($sheet->{'rowlabel'}->{$usy});
1.120 matthew 981: if (! $csv) {
982: $cols[0].='<br>'.
1.104 matthew 983: '<select name="sel_'.$n.'" onChange="changesheet('.$n.')">'.
984: '<option name="default">Default</option>';
1.120 matthew 985: }
1.104 matthew 986: } else {
987: $cols[0]='';
988: }
1.120 matthew 989: if (! $csv) {
1.122 matthew 990: foreach (@{$sheet->{'othersheets'}}) {
1.120 matthew 991: $cols[0].='<option name="'.$_.'"';
992: if ($ufn eq $_) {
993: $cols[0].=' selected';
994: }
995: $cols[0].='>'.$_.'</option>';
1.55 www 996: }
1.120 matthew 997: $cols[0].='</select>';
1.104 matthew 998: }
1.6 www 999: } else {
1.104 matthew 1000: $cols[0]='<b><font size=+1>Export</font></b>';
1.6 www 1001: }
1.78 matthew 1002: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1003: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1004: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1005: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1.122 matthew 1006: my $fm=$sheet->{'f'}->{$_.$n};
1.6 www 1007: $fm=~s/[\'\"]/\&\#34;/g;
1.122 matthew 1008: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet->{'values'}->{$_.$n});
1.78 matthew 1009: }
1.6 www 1010: return @cols;
1011: }
1012:
1.18 www 1013: sub outrow {
1.122 matthew 1014: my $sheet=shift;
1.18 www 1015: my $n=shift;
1016: my @cols=();
1017: if ($n) {
1.125 matthew 1018: $cols[0]=&format_rowlabel($sheet->{'rowlabel'}->{$sheet->{'f'}->{'A'.$n}});
1.18 www 1019: } else {
1020: $cols[0]='<b><font size=+1>Export</font></b>';
1021: }
1.78 matthew 1022: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1023: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1024: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1025: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1.122 matthew 1026: my $fm=$sheet->{'f'}->{$_.$n};
1.118 matthew 1027: $fm=~s/[\'\"]/\&\#34;/g;
1.122 matthew 1028: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet->{'values'}->{$_.$n});
1.118 matthew 1029: }
1030: return @cols;
1031: }
1032:
1.4 www 1033: # ------------------------------------------------ Add or change formula values
1034: sub setformulas {
1.124 matthew 1035: my ($sheet)=shift;
1.119 matthew 1036: %{$sheet->{'safe'}->varglob('f')}=%{$sheet->{'f'}};
1.6 www 1037: }
1038:
1039: # ------------------------------------------------ Add or change formula values
1040: sub setconstants {
1.119 matthew 1041: my ($sheet)=shift;
1.122 matthew 1042: my ($constants) = @_;
1043: if (! ref($constants)) {
1044: my %tmp = @_;
1045: $constants = \%tmp;
1046: }
1047: $sheet->{'constants'} = $constants;
1.119 matthew 1048: return %{$sheet->{'safe'}->varglob('c')}=%{$sheet->{'constants'}};
1.6 www 1049: }
1050:
1.55 www 1051: # --------------------------------------------- Set names of other spreadsheets
1052: sub setothersheets {
1.119 matthew 1053: my $sheet = shift;
1054: my @othersheets = @_;
1055: $sheet->{'othersheets'} = \@othersheets;
1056: @{$sheet->{'safe'}->varglob('os')}=@othersheets;
1057: return;
1.55 www 1058: }
1059:
1.6 www 1060: # ------------------------------------------------ Add or change formula values
1061: sub setrowlabels {
1.119 matthew 1062: my $sheet=shift;
1.125 matthew 1063: my ($rowlabel) = @_;
1064: if (! ref($rowlabel)) {
1065: my %tmp = @_;
1066: $rowlabel = \%tmp;
1067: }
1068: $sheet->{'rowlabel'}=$rowlabel;
1.4 www 1069: }
1070:
1071: # ------------------------------------------------------- Calculate spreadsheet
1072: sub calcsheet {
1.119 matthew 1073: my $sheet=shift;
1.124 matthew 1074: my $result = $sheet->{'safe'}->reval('&calc();');
1075: %{$sheet->{'values'}} = %{$sheet->{'safe'}->varglob('sheet_values')};
1076: return $result;
1.4 www 1077: }
1078:
1079: # ---------------------------------------------------------------- Get formulas
1080: sub getformulas {
1.119 matthew 1081: my $sheet = shift;
1082: return %{$sheet->{'safe'}->varglob('f')};
1.4 www 1083: }
1084:
1.97 www 1085: # ----------------------------------------------------- Get value of $f{'A'.$n}
1086: sub getfa {
1.119 matthew 1087: my $sheet = shift;
1088: my ($n)=@_;
1089: return $sheet->{'safe'}->reval('$f{"A'.$n.'"}');
1.97 www 1090: }
1091:
1.14 www 1092: # ------------------------------------------------------------- Export of A-row
1.28 www 1093: sub exportdata {
1.119 matthew 1094: my $sheet=shift;
1.121 matthew 1095: my @exportarray=();
1096: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1097: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1098: push(@exportarray,$sheet->{'values'}->{$_.'0'});
1099: }
1100: return @exportarray;
1.14 www 1101: }
1.55 www 1102:
1.5 www 1103: # ========================================================== End of Spreadsheet
1104: # =============================================================================
1105:
1.27 www 1106: #
1107: # Procedures for screen output
1108: #
1.6 www 1109: # --------------------------------------------- Produce output row n from sheet
1110:
1111: sub rown {
1.119 matthew 1112: my ($sheet,$n)=@_;
1.21 www 1113: my $defaultbg;
1.24 www 1114: my $rowdata='';
1.61 www 1115: my $dataflag=0;
1.21 www 1116: unless ($n eq '-') {
1.106 matthew 1117: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1.21 www 1118: } else {
1.106 matthew 1119: $defaultbg='#E0FF';
1.21 www 1120: }
1.71 www 1121: unless ($ENV{'form.showcsv'}) {
1.106 matthew 1122: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1.71 www 1123: } else {
1.106 matthew 1124: $rowdata.="\n".'"'.$n.'"';
1.71 www 1125: }
1.6 www 1126: my $showf=0;
1.122 matthew 1127: #
1128: # Determine how many pink (uneditable) cells there are in this sheet.
1.97 www 1129: my $maxred=1;
1.119 matthew 1130: my $sheettype=$sheet->{'sheettype'};
1.62 www 1131: if ($sheettype eq 'studentcalc') {
1.55 www 1132: $maxred=26;
1.122 matthew 1133: } elsif ($sheettype eq 'assesscalc') {
1.18 www 1134: $maxred=1;
1.16 www 1135: } else {
1.18 www 1136: $maxred=26;
1.16 www 1137: }
1.122 matthew 1138: $maxred=1 if (&getfa($sheet,$n)=~/^[\~\-]/);
1139: #
1140: # Get the proper row
1141: my @rowdata;
1.104 matthew 1142: if ($n eq '-') {
1.122 matthew 1143: @rowdata = &templaterow($sheet);
1.104 matthew 1144: $n=-1;
1145: $dataflag=1;
1.122 matthew 1146: } elsif ($sheettype eq 'studentcalc') {
1147: @rowdata = &outrowassess($sheet,$n);
1148: } else {
1149: @rowdata = &outrow($sheet,$n);
1.104 matthew 1150: }
1.122 matthew 1151: #
1152: foreach (@rowdata) {
1.106 matthew 1153: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1154: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1155: if ((($vl ne '') || ($vl eq '0')) &&
1156: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1157: if ($showf==0) { $vl=$_; }
1158: unless ($ENV{'form.showcsv'}) {
1159: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1160: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1161: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1162: if ($vl eq '') {
1163: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1164: }
1.111 matthew 1165: $rowdata.='<td bgcolor='.$bgcolor.'>';
1166: if ($ENV{'request.role'} =~ /^st\./) {
1167: $rowdata.=$vl;
1168: } else {
1169: $rowdata.='<a href="javascript:celledit('.$fm.');">'.
1170: $vl.'</a>';
1171: }
1172: $rowdata.='</td>';
1.106 matthew 1173: } else {
1174: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1175: }
1176: } else {
1177: $rowdata.=',"'.$vl.'"';
1178: }
1179: $showf++;
1.78 matthew 1180: } # End of foreach($safeval...)
1.61 www 1181: if ($ENV{'form.showall'} || ($dataflag)) {
1.106 matthew 1182: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1.61 www 1183: } else {
1.106 matthew 1184: return '';
1.61 www 1185: }
1.6 www 1186: }
1187:
1188: # ------------------------------------------------------------- Print out sheet
1189:
1190: sub outsheet {
1.119 matthew 1191: my ($r,$sheet)=@_;
1.106 matthew 1192: my $maxred = 26; # The maximum number of cells to show as
1193: # red (uneditable)
1194: # To make student sheets uneditable could we
1195: # set $maxred = 52?
1196: #
1197: my $realm='Course'; # 'assessment', 'user', or 'course' sheet
1.119 matthew 1198: if ($sheet->{'sheettype'} eq 'assesscalc') {
1.18 www 1199: $maxred=1;
1200: $realm='Assessment';
1.119 matthew 1201: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1.18 www 1202: $maxred=26;
1203: $realm='User';
1204: }
1.106 matthew 1205: #
1206: # Column label
1.71 www 1207: my $tabledata;
1.106 matthew 1208: if ($ENV{'form.showcsv'}) {
1209: $tabledata='<pre>';
1210: } else {
1211: $tabledata='<table border=2><tr><th colspan=2 rowspan=2>'.
1212: '<font size=+2>'.$realm.'</font></th>'.
1.18 www 1213: '<td bgcolor=#FFDDDD colspan='.$maxred.
1214: '><b><font size=+1>Import</font></b></td>'.
1.106 matthew 1215: '<td colspan='.(52-$maxred).
1.18 www 1216: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1.106 matthew 1217: my $showf=0;
1218: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1219: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1220: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1221: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1222: $showf++;
1223: if ($showf<=$maxred) {
1224: $tabledata.='<td bgcolor="#FFDDDD">';
1225: } else {
1226: $tabledata.='<td>';
1227: }
1228: $tabledata.="<b><font size=+1>$_</font></b></td>";
1229: }
1.119 matthew 1230: $tabledata.='</tr>'.&rown($sheet,'-').
1231: &rown($sheet,0);
1.106 matthew 1232: }
1.71 www 1233: $r->print($tabledata);
1.106 matthew 1234: #
1235: # Prepare to output rows
1.6 www 1236: my $row;
1.106 matthew 1237: #
1.128 matthew 1238: # Sort the rows in some manner
1239: #
1.65 www 1240: my @sortby=();
1241: my @sortidx=();
1.119 matthew 1242: for ($row=1;$row<=$sheet->{'maxrow'};$row++) {
1243: push (@sortby, $sheet->{'safe'}->reval('$f{"A'.$row.'"}'));
1.106 matthew 1244: push (@sortidx, $row-1);
1.65 www 1245: }
1.111 matthew 1246: @sortidx=sort { lc($sortby[$a]) cmp lc($sortby[$b]); } @sortidx;
1.106 matthew 1247: #
1248: # Determine the type of child spreadsheets
1249: my $what='Student';
1.119 matthew 1250: if ($sheet->{'sheettype'} eq 'assesscalc') {
1.106 matthew 1251: $what='Item';
1.119 matthew 1252: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1.106 matthew 1253: $what='Assessment';
1254: }
1255: #
1256: # Loop through the rows and output them one at a time
1.65 www 1257: my $n=0;
1.119 matthew 1258: for ($row=0;$row<$sheet->{'maxrow'};$row++) {
1259: my $thisrow=&rown($sheet,$sortidx[$row]+1);
1.102 matthew 1260: if ($thisrow) {
1261: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1262: $r->print("</table>\n<br>\n");
1263: $r->rflush();
1264: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1.106 matthew 1265: $r->print('<td>'.
1266: join('</td><td>',
1267: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1268: 'abcdefghijklmnopqrstuvwxyz'))).
1.102 matthew 1269: "</td></tr>\n");
1270: }
1271: $n++;
1272: $r->print($thisrow);
1.78 matthew 1273: }
1.6 www 1274: }
1.71 www 1275: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1.6 www 1276: }
1277:
1.27 www 1278: #
1.55 www 1279: # ----------------------------------------------- Read list of available sheets
1280: #
1281: sub othersheets {
1.119 matthew 1282: my ($sheet,$stype)=@_;
1283: $stype = $sheet->{'sheettype'} if (! defined($stype));
1.81 matthew 1284: #
1.119 matthew 1285: my $cnum = $sheet->{'cnum'};
1286: my $cdom = $sheet->{'cdom'};
1287: my $chome = $sheet->{'chome'};
1.81 matthew 1288: #
1.55 www 1289: my @alternatives=();
1.81 matthew 1290: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1291: my ($tmp) = keys(%results);
1292: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1293: @alternatives = sort (keys(%results));
1294: }
1.55 www 1295: return @alternatives;
1296: }
1297:
1.82 matthew 1298:
1299: #
1300: # -------------------------------------- Parse a spreadsheet
1301: #
1302: sub parse_sheet {
1303: # $sheetxml is a scalar reference or a scalar
1304: my ($sheetxml) = @_;
1305: if (! ref($sheetxml)) {
1306: my $tmp = $sheetxml;
1307: $sheetxml = \$tmp;
1308: }
1309: my %f;
1310: my $parser=HTML::TokeParser->new($sheetxml);
1311: my $token;
1312: while ($token=$parser->get_token) {
1313: if ($token->[0] eq 'S') {
1314: if ($token->[1] eq 'field') {
1315: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1316: $parser->get_text('/field');
1317: }
1318: if ($token->[1] eq 'template') {
1319: $f{'template_'.$token->[2]->{'col'}}=
1320: $parser->get_text('/template');
1321: }
1322: }
1323: }
1324: return \%f;
1325: }
1326:
1.55 www 1327: #
1.27 www 1328: # -------------------------------------- Read spreadsheet formulas for a course
1329: #
1330: sub readsheet {
1.119 matthew 1331: my ($sheet,$fn)=@_;
1.107 matthew 1332: #
1.119 matthew 1333: my $stype = $sheet->{'sheettype'};
1334: my $cnum = $sheet->{'cnum'};
1335: my $cdom = $sheet->{'cdom'};
1336: my $chome = $sheet->{'chome'};
1.107 matthew 1337: #
1.104 matthew 1338: if (! defined($fn)) {
1339: # There is no filename. Look for defaults in course and global, cache
1340: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1341: my %tmphash = &Apache::lonnet::get('environment',
1342: ['spreadsheet_default_'.$stype],
1343: $cdom,$cnum);
1344: my ($tmp) = keys(%tmphash);
1345: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1346: $fn = 'default_'.$stype;
1347: } else {
1348: $fn = $tmphash{'spreadsheet_default_'.$stype};
1349: }
1350: unless (($fn) && ($fn!~/^error\:/)) {
1351: $fn='default_'.$stype;
1352: }
1353: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1354: }
1355: }
1356: # $fn now has a value
1.119 matthew 1357: $sheet->{'filename'} = $fn;
1.104 matthew 1358: # see if sheet is cached
1359: my $fstring='';
1360: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1.119 matthew 1361: my %tmp = split(/___;___/,$fstring);
1.124 matthew 1362: $sheet->{'f'} = \%tmp;
1363: &setformulas($sheet);
1.104 matthew 1364: } else {
1365: # Not cached, need to read
1366: my %f=();
1367: if ($fn=~/^default\_/) {
1368: my $sheetxml='';
1369: my $fh;
1370: my $dfn=$fn;
1371: $dfn=~s/\_/\./g;
1372: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1373: $sheetxml=join('',<$fh>);
1374: } else {
1375: $sheetxml='<field row="0" col="A">"Error"</field>';
1376: }
1377: %f=%{&parse_sheet(\$sheetxml)};
1378: } elsif($fn=~/\/*\.spreadsheet$/) {
1379: my $sheetxml=&Apache::lonnet::getfile
1380: (&Apache::lonnet::filelocation('',$fn));
1381: if ($sheetxml == -1) {
1382: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1383: .$fn.'"</field>';
1384: }
1385: %f=%{&parse_sheet(\$sheetxml)};
1386: } else {
1387: my $sheet='';
1388: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1389: my ($tmp) = keys(%tmphash);
1390: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1391: foreach (keys(%tmphash)) {
1392: $f{$_}=$tmphash{$_};
1393: }
1394: }
1395: }
1396: # Cache and set
1397: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1.124 matthew 1398: $sheet->{'f'}=\%f;
1399: &setformulas($sheet);
1.3 www 1400: }
1401: }
1402:
1.28 www 1403: # -------------------------------------------------------- Make new spreadsheet
1404: sub makenewsheet {
1405: my ($uname,$udom,$stype,$usymb)=@_;
1.119 matthew 1406: my $sheet={};
1407: $sheet->{'uname'} = $uname;
1408: $sheet->{'udom'} = $udom;
1409: $sheet->{'sheettype'} = $stype;
1410: $sheet->{'usymb'} = $usymb;
1411: $sheet->{'cid'} = $ENV{'request.course.id'};
1412: $sheet->{'csec'} = $Section{$uname.':'.$udom};
1413: $sheet->{'coursefilename'} = $ENV{'request.course.fn'};
1414: $sheet->{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1415: $sheet->{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1416: $sheet->{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1417: $sheet->{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1418: #
1419: #
1420: $sheet->{'f'} = {};
1421: $sheet->{'constants'} = {};
1422: $sheet->{'othersheets'} = [];
1423: $sheet->{'rowlabel'} = {};
1424: #
1425: #
1426: $sheet->{'safe'}=&initsheet($sheet->{'sheettype'});
1.116 matthew 1427: #
1.119 matthew 1428: # Place all the %$sheet items into the safe space except the safe space
1429: # itself
1.105 matthew 1430: my $initstring = '';
1.119 matthew 1431: foreach (qw/uname udom sheettype usymb cid csec coursefilename
1432: cnum cdom chome uhome/) {
1433: $initstring.= qq{\$$_="$sheet->{$_}";};
1.105 matthew 1434: }
1.119 matthew 1435: $sheet->{'safe'}->reval($initstring);
1436: return $sheet;
1.28 www 1437: }
1438:
1.19 www 1439: # ------------------------------------------------------------ Save spreadsheet
1440: sub writesheet {
1.119 matthew 1441: my ($sheet,$makedef)=@_;
1442: my $cid=$sheet->{'cid'};
1.104 matthew 1443: if (&Apache::lonnet::allowed('opa',$cid)) {
1.119 matthew 1444: my %f=&getformulas($sheet);
1445: my $stype= $sheet->{'sheettype'};
1446: my $cnum = $sheet->{'cnum'};
1447: my $cdom = $sheet->{'cdom'};
1448: my $chome= $sheet->{'chome'};
1449: my $fn = $sheet->{'filename'};
1.104 matthew 1450: # Cache new sheet
1451: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1452: # Write sheet
1453: my $sheetdata='';
1454: foreach (keys(%f)) {
1455: unless ($f{$_} eq 'import') {
1456: $sheetdata.=&Apache::lonnet::escape($_).'='.
1457: &Apache::lonnet::escape($f{$_}).'&';
1458: }
1459: }
1460: $sheetdata=~s/\&$//;
1461: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1462: $sheetdata,$chome);
1463: if ($reply eq 'ok') {
1464: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1465: $stype.'_spreadsheets:'.
1466: &Apache::lonnet::escape($fn).
1467: '='.$ENV{'user.name'}.'@'.
1468: $ENV{'user.domain'},
1469: $chome);
1470: if ($reply eq 'ok') {
1471: if ($makedef) {
1472: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1473: ':environment:'.
1474: 'spreadsheet_default_'.
1475: $stype.'='.
1476: &Apache::lonnet::escape($fn),
1477: $chome);
1478: }
1479: return $reply;
1480: }
1481: return $reply;
1482: }
1483: return $reply;
1484: }
1485: return 'unauthorized';
1.19 www 1486: }
1487:
1.10 www 1488: # ----------------------------------------------- Make a temp copy of the sheet
1.28 www 1489: # "Modified workcopy" - interactive only
1490: #
1.10 www 1491: sub tmpwrite {
1.119 matthew 1492: my ($sheet) = @_;
1.28 www 1493: my $fn=$ENV{'user.name'}.'_'.
1.119 matthew 1494: $ENV{'user.domain'}.'_spreadsheet_'.$sheet->{'usymb'}.'_'.
1495: $sheet->{'filename'};
1.10 www 1496: $fn=~s/\W/\_/g;
1497: $fn=$tmpdir.$fn.'.tmp';
1498: my $fh;
1499: if ($fh=Apache::File->new('>'.$fn)) {
1.119 matthew 1500: print $fh join("\n",&getformulas($sheet));
1.10 www 1501: }
1502: }
1503:
1504: # ---------------------------------------------------------- Read the temp copy
1505: sub tmpread {
1.119 matthew 1506: my ($sheet,$nfield,$nform)=@_;
1.28 www 1507: my $fn=$ENV{'user.name'}.'_'.
1.119 matthew 1508: $ENV{'user.domain'}.'_spreadsheet_'.$sheet->{'usymb'}.'_'.
1509: $sheet->{'filename'};
1.10 www 1510: $fn=~s/\W/\_/g;
1511: $fn=$tmpdir.$fn.'.tmp';
1512: my $fh;
1513: my %fo=();
1.92 www 1514: my $countrows=0;
1.10 www 1515: if ($fh=Apache::File->new($fn)) {
1516: my $name;
1517: while ($name=<$fh>) {
1518: chomp($name);
1519: my $value=<$fh>;
1520: chomp($value);
1521: $fo{$name}=$value;
1.93 www 1522: if ($name=~/^A(\d+)$/) {
1523: if ($1>$countrows) {
1524: $countrows=$1;
1525: }
1526: }
1.10 www 1527: }
1528: }
1.55 www 1529: if ($nform eq 'changesheet') {
1.128 matthew 1530: $fo{'A'.$nfield}=(split(/__&&&\__/,$fo{'A'.$nfield}))[0];
1.55 www 1531: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1.57 www 1532: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1.55 www 1533: }
1.92 www 1534: } elsif ($nfield eq 'insertrow') {
1.93 www 1535: $countrows++;
1.95 www 1536: my $newrow=substr('000000'.$countrows,-7);
1.92 www 1537: if ($nform eq 'top') {
1.94 www 1538: $fo{'A'.$countrows}='--- '.$newrow;
1.92 www 1539: } else {
1.94 www 1540: $fo{'A'.$countrows}='~~~ '.$newrow;
1.92 www 1541: }
1.55 www 1542: } else {
1543: if ($nfield) { $fo{$nfield}=$nform; }
1544: }
1.124 matthew 1545: $sheet->{'f'}=\%fo;
1546: &setformulas($sheet);
1.10 www 1547: }
1548:
1.104 matthew 1549: ##################################################
1550: ##################################################
1.11 www 1551:
1.104 matthew 1552: =pod
1.11 www 1553:
1.104 matthew 1554: =item &parmval()
1.11 www 1555:
1.104 matthew 1556: Determine the value of a parameter.
1.11 www 1557:
1.119 matthew 1558: Inputs: $what, the parameter needed, $sheet, the safe space
1.11 www 1559:
1.104 matthew 1560: Returns: The value of a parameter, or '' if none.
1.11 www 1561:
1.104 matthew 1562: This function cascades through the possible levels searching for a value for
1563: a parameter. The levels are checked in the following order:
1564: user, course (at section level and course level), map, and lonnet::metadata.
1565: This function uses %parmhash, which must be tied prior to calling it.
1566: This function also requires %courseopt and %useropt to be initialized for
1567: this user and course.
1.11 www 1568:
1.104 matthew 1569: =cut
1.11 www 1570:
1.104 matthew 1571: ##################################################
1572: ##################################################
1573: sub parmval {
1.119 matthew 1574: my ($what,$sheet)=@_;
1575: my $symb = $sheet->{'usymb'};
1.104 matthew 1576: unless ($symb) { return ''; }
1577: #
1.119 matthew 1578: my $cid = $sheet->{'cid'};
1579: my $csec = $sheet->{'csec'};
1580: my $uname = $sheet->{'uname'};
1581: my $udom = $sheet->{'udom'};
1.104 matthew 1582: my $result='';
1583: #
1584: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1585: # Cascading lookup scheme
1586: my $rwhat=$what;
1587: $what =~ s/^parameter\_//;
1588: $what =~ s/\_([^\_]+)$/\.$1/;
1589: #
1590: my $symbparm = $symb.'.'.$what;
1591: my $mapparm = $mapname.'___(all).'.$what;
1592: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
1593: #
1594: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
1595: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
1596: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
1597: #
1598: my $courselevel = $usercourseprefix.'.'.$what;
1599: my $courselevelr = $usercourseprefix.'.'.$symbparm;
1600: my $courselevelm = $usercourseprefix.'.'.$mapparm;
1601: # fourth, check user
1.115 albertel 1602: if (defined($uname)) {
1603: return $useropt{$courselevelr} if (defined($useropt{$courselevelr}));
1604: return $useropt{$courselevelm} if (defined($useropt{$courselevelm}));
1605: return $useropt{$courselevel} if (defined($useropt{$courselevel}));
1.104 matthew 1606: }
1607: # third, check course
1.115 albertel 1608: if (defined($csec)) {
1609: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
1610: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
1611: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
1.104 matthew 1612: }
1613: #
1.115 albertel 1614: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
1615: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
1616: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
1.104 matthew 1617: # second, check map parms
1618: my $thisparm = $parmhash{$symbparm};
1.115 albertel 1619: return $thisparm if (defined($thisparm));
1.104 matthew 1620: # first, check default
1621: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1.11 www 1622: }
1623:
1.125 matthew 1624: sub format_rowlabel {
1625: my $rowlabel = shift;
1626: my ($type,$labeldata) = split(':',$rowlabel,2);
1627: my $result = '';
1628: if ($type eq 'symb') {
1629: my ($symb,$uname,$udom,$title) = split(':',$labeldata);
1630: $symb = &Apache::lonnet::unescape($symb);
1631: if ($ENV{'form.showcsv'}) {
1632: $result = $title;
1633: } else {
1.126 matthew 1634: $result = '<a href="/adm/assesscalc?usymb='.$symb.
1.125 matthew 1635: '&uname='.$uname.'&udom='.$udom.'">'.$title.'</a>';
1636: }
1637: } elsif ($type eq 'student') {
1638: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
1639: if ($ENV{'form.showcsv'}) {
1640: $result = '"'.
1641: join('","',($sname,$sdom,$fullname,$section,$id).'"');
1642: } else {
1643: $result ='<a href="/adm/studentcalc?uname='.$sname.
1644: '&udom='.$sdom.'">';
1645: $result.=$section.' '.$id." ".$fullname.'</a>';
1646: }
1647: } elsif ($type eq 'parameter') {
1648: if ($ENV{'form.showcsv'}) {
1.127 matthew 1649: $labeldata =~ s/<br>/ /g;
1.125 matthew 1650: }
1.127 matthew 1651: $result = $labeldata;
1.125 matthew 1652: } else {
1653: &Apache::lonnet::logthis("lonspreadsheet:bogus rowlabel type: $type");
1654: }
1655: return $result;
1656: }
1657:
1.23 www 1658: # ---------------------------------------------- Update rows for course listing
1.28 www 1659: sub updateclasssheet {
1.119 matthew 1660: my ($sheet) = @_;
1661: my $cnum =$sheet->{'cnum'};
1662: my $cdom =$sheet->{'cdom'};
1663: my $cid =$sheet->{'cid'};
1664: my $chome =$sheet->{'chome'};
1.102 matthew 1665: #
1.113 matthew 1666: %Section = ();
1667:
1668: #
1.102 matthew 1669: # Read class list and row labels
1.118 matthew 1670: my $classlist = &Apache::loncoursedata::get_classlist();
1671: if (! defined($classlist)) {
1672: return 'Could not access course classlist';
1673: }
1.102 matthew 1674: #
1.23 www 1675: my %currentlist=();
1.118 matthew 1676: foreach my $student (keys(%$classlist)) {
1677: my ($studentDomain,$studentName,$end,$start,$id,$studentSection,
1678: $fullname,$status) = @{$classlist->{$student}};
1679: if ($ENV{'form.Status'} eq $status || $ENV{'form.Status'} eq 'Any') {
1.125 matthew 1680: $currentlist{$student}=join(':',('student',$studentName,
1681: $studentDomain,$fullname,
1682: $studentSection,$id));
1.118 matthew 1683: }
1684: }
1.102 matthew 1685: #
1686: # Find discrepancies between the course row table and this
1687: #
1.119 matthew 1688: my %f=&getformulas($sheet);
1.102 matthew 1689: my $changed=0;
1690: #
1.119 matthew 1691: $sheet->{'maxrow'}=0;
1.102 matthew 1692: my %existing=();
1693: #
1694: # Now obsolete rows
1695: foreach (keys(%f)) {
1696: if ($_=~/^A(\d+)/) {
1.119 matthew 1697: if ($1 > $sheet->{'maxrow'}) {
1698: $sheet->{'maxrow'}= $1;
1699: }
1.102 matthew 1700: $existing{$f{$_}}=1;
1701: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1.120 matthew 1702: ($f{$_}=~/^(~~~|---)/)) {
1.102 matthew 1703: $f{$_}='!!! Obsolete';
1704: $changed=1;
1.23 www 1705: }
1.78 matthew 1706: }
1.102 matthew 1707: }
1708: #
1709: # New and unknown keys
1.128 matthew 1710: foreach my $student (sort keys(%currentlist)) {
1711: unless ($existing{$student}) {
1.102 matthew 1712: $changed=1;
1.119 matthew 1713: $sheet->{'maxrow'}++;
1.128 matthew 1714: $f{'A'.$sheet->{'maxrow'}}=$student;
1.78 matthew 1715: }
1.23 www 1716: }
1.119 matthew 1717: if ($changed) {
1.124 matthew 1718: $sheet->{'f'} = \%f;
1719: &setformulas($sheet,%f);
1.119 matthew 1720: }
1.102 matthew 1721: #
1.125 matthew 1722: &setrowlabels($sheet,\%currentlist);
1.23 www 1723: }
1.5 www 1724:
1.28 www 1725: # ----------------------------------- Update rows for student and assess sheets
1726: sub updatestudentassesssheet {
1.119 matthew 1727: my ($sheet) = @_;
1.128 matthew 1728: #
1.5 www 1729: my %bighash;
1.128 matthew 1730: #
1731: my $stype = $sheet->{'sheettype'};
1732: my $uname = $sheet->{'uname'};
1733: my $udom = $sheet->{'udom'};
1.119 matthew 1734: $sheet->{'rowlabel'} = {};
1.128 matthew 1735: my $identifier =$sheet->{'coursefilename'}.'_'.$stype.'_'.$uname.'_'.$udom;
1736: if ($updatedata{$identifier}) {
1737: %{$sheet->{'rowlabel'}}=split(/___;___/,$updatedata{$identifier});
1.104 matthew 1738: } else {
1739: # Tie hash
1.128 matthew 1740: tie(%bighash,'GDBM_File',$sheet->{'coursefilename'}.'.db',
1.104 matthew 1741: &GDBM_READER(),0640);
1742: if (! tied(%bighash)) {
1743: return 'Could not access course data';
1744: }
1745: # Get all assessments
1.125 matthew 1746: #
1.128 matthew 1747: # parameter_labels is used in the assessment sheets to provide labels
1.125 matthew 1748: # for the parameters.
1.128 matthew 1749: my %parameter_labels=
1750: ('timestamp' =>
1751: 'parameter:Timestamp of Last Transaction<br>timestamp',
1752: 'subnumber' =>
1753: 'parameter:Number of Submissions<br>subnumber',
1754: 'tutornumber' =>
1755: 'parameter:Number of Tutor Responses<br>tutornumber',
1756: 'totalpoints' =>
1757: 'parameter:Total Points Granted<br>totalpoints');
1.125 matthew 1758: #
1.128 matthew 1759: # assesslist holds the descriptions of all assessments
1760: my %assesslist;
1.125 matthew 1761: foreach ('Feedback','Evaluation','Tutoring','Discussion') {
1762: my $symb = '_'.lc($_);
1.128 matthew 1763: $assesslist{$symb} = join(':',('symb',$symb,$uname,$udom,$_));
1.120 matthew 1764: }
1.107 matthew 1765: while (($_,undef) = each(%bighash)) {
1.104 matthew 1766: next if ($_!~/^src\_(\d+)\.(\d+)$/);
1767: my $mapid=$1;
1768: my $resid=$2;
1769: my $id=$mapid.'.'.$resid;
1770: my $srcf=$bighash{$_};
1771: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1772: my $symb=
1773: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1774: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
1.128 matthew 1775: $assesslist{$symb}='symb:'.&Apache::lonnet::escape($symb).':'
1.125 matthew 1776: .$uname.':'.$udom.':'.$bighash{'title_'.$id};
1.104 matthew 1777: next if ($stype ne 'assesscalc');
1778: foreach my $key (split(/\,/,
1779: &Apache::lonnet::metadata($srcf,'keys')
1780: )) {
1781: next if ($key !~ /^(stores|parameter)_/);
1782: my $display=
1783: &Apache::lonnet::metadata($srcf,$key.'.display');
1784: unless ($display) {
1785: $display.=
1786: &Apache::lonnet::metadata($srcf,$key.'.name');
1787: }
1788: $display.='<br>'.$key;
1.128 matthew 1789: $parameter_labels{$key}='parameter:'.$display;
1.104 matthew 1790: } # end of foreach
1791: }
1.78 matthew 1792: } # end of foreach (keys(%bighash))
1.5 www 1793: untie(%bighash);
1.104 matthew 1794: #
1.128 matthew 1795: # %parameter_labels has a list of storage and parameter displays by
1796: # unikey
1797: # %assesslist has a list of all resource, by symb
1.104 matthew 1798: #
1.6 www 1799: if ($stype eq 'assesscalc') {
1.128 matthew 1800: $sheet->{'rowlabel'} = \%parameter_labels;
1.6 www 1801: } elsif ($stype eq 'studentcalc') {
1.128 matthew 1802: $sheet->{'rowlabel'} = \%assesslist;
1.6 www 1803: }
1.128 matthew 1804: $updatedata{$sheet->{'coursefilename'}.'_'.$stype.'_'
1805: .$uname.'_'.$udom}=
1806: join('___;___',%{$sheet->{'rowlabel'}});
1.104 matthew 1807: # Get current from cache
1.35 www 1808: }
1.104 matthew 1809: # Find discrepancies between the course row table and this
1810: #
1.119 matthew 1811: my %f=&getformulas($sheet);
1.104 matthew 1812: my $changed=0;
1813:
1.119 matthew 1814: $sheet->{'maxrow'} = 0;
1.104 matthew 1815: my %existing=();
1816: # Now obsolete rows
1817: foreach (keys(%f)) {
1818: next if ($_!~/^A(\d+)/);
1.119 matthew 1819: if ($1 > $sheet->{'maxrow'}) {
1820: $sheet->{'maxrow'} = $1;
1821: }
1822: my ($usy,$ufn)=split(/__&&&\__/,$f{$_});
1.104 matthew 1823: $existing{$usy}=1;
1.119 matthew 1824: unless ((exists($sheet->{'rowlabel'}->{$usy}) &&
1825: (defined($sheet->{'rowlabel'}->{$usy})) || (!$1) ||
1.120 matthew 1826: ($f{$_}=~/^(~~~|---)/))){
1.104 matthew 1827: $f{$_}='!!! Obsolete';
1828: $changed=1;
1829: } elsif ($ufn) {
1.119 matthew 1830: $sheet->{'rowlabel'}->{$usy}
1831: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1.104 matthew 1832: }
1.35 www 1833: }
1.104 matthew 1834: # New and unknown keys
1.119 matthew 1835: foreach (keys(%{$sheet->{'rowlabel'}})) {
1.104 matthew 1836: unless ($existing{$_}) {
1837: $changed=1;
1.119 matthew 1838: $sheet->{'maxrow'}++;
1839: $f{'A'.$sheet->{'maxrow'}}=$_;
1.78 matthew 1840: }
1.104 matthew 1841: }
1.119 matthew 1842: if ($changed) {
1.124 matthew 1843: $sheet->{'f'} = \%f;
1844: &setformulas($sheet);
1.119 matthew 1845: }
1.104 matthew 1846: #
1847: undef %existing;
1.5 www 1848: }
1.3 www 1849:
1.24 www 1850: # ------------------------------------------------ Load data for one assessment
1.16 www 1851:
1.29 www 1852: sub loadstudent {
1.119 matthew 1853: my ($sheet)=@_;
1.16 www 1854: my %c=();
1.119 matthew 1855: my %f=&getformulas($sheet);
1856: $cachedassess=$sheet->{'uname'}.':'.$sheet->{'udom'};
1.102 matthew 1857: # Get ALL the student preformance data
1.119 matthew 1858: my @tmp = &Apache::lonnet::dump($sheet->{'cid'},
1859: $sheet->{'udom'},
1860: $sheet->{'uname'},
1.102 matthew 1861: undef);
1862: if ($tmp[0] !~ /^error:/) {
1863: %cachedstores = @tmp;
1.39 www 1864: }
1.102 matthew 1865: undef @tmp;
1866: #
1.36 www 1867: my @assessdata=();
1.78 matthew 1868: foreach (keys(%f)) {
1.104 matthew 1869: next if ($_!~/^A(\d+)/);
1870: my $row=$1;
1871: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1872: my ($usy,$ufn)=split(/__&&&\__/,$f{$_});
1.128 matthew 1873: @assessdata=&exportsheet($sheet,$sheet->{'uname'},
1.119 matthew 1874: $sheet->{'udom'},
1.104 matthew 1875: 'assesscalc',$usy,$ufn);
1876: my $index=0;
1877: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1878: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1879: if ($assessdata[$index]) {
1880: my $col=$_;
1881: if ($assessdata[$index]=~/\D/) {
1882: $c{$col.$row}="'".$assessdata[$index]."'";
1883: } else {
1884: $c{$col.$row}=$assessdata[$index];
1885: }
1886: unless ($col eq 'A') {
1887: $f{$col.$row}='import';
1888: }
1889: }
1890: $index++;
1.16 www 1891: }
1.78 matthew 1892: }
1.39 www 1893: $cachedassess='';
1894: undef %cachedstores;
1.124 matthew 1895: $sheet->{'f'} = \%f;
1896: &setformulas($sheet);
1.122 matthew 1897: &setconstants($sheet,\%c);
1.16 www 1898: }
1899:
1.24 www 1900: # --------------------------------------------------- Load data for one student
1.109 matthew 1901: #
1.30 www 1902: sub loadcourse {
1.119 matthew 1903: my ($sheet,$r)=@_;
1.24 www 1904: my %c=();
1.119 matthew 1905: my %f=&getformulas($sheet);
1.37 www 1906: my $total=0;
1.78 matthew 1907: foreach (keys(%f)) {
1.37 www 1908: if ($_=~/^A(\d+)/) {
1.97 www 1909: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1.37 www 1910: }
1.78 matthew 1911: }
1.37 www 1912: my $now=0;
1913: my $since=time;
1.39 www 1914: $r->print(<<ENDPOP);
1915: <script>
1916: popwin=open('','popwin','width=400,height=100');
1917: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1.50 www 1918: '<h3>Spreadsheet Calculation Progress</h3>'+
1.39 www 1919: '<form name=popremain>'+
1920: '<input type=text size=35 name=remaining value=Starting></form>'+
1921: '</body></html>');
1.42 www 1922: popwin.document.close();
1.39 www 1923: </script>
1924: ENDPOP
1.37 www 1925: $r->rflush();
1.78 matthew 1926: foreach (keys(%f)) {
1.104 matthew 1927: next if ($_!~/^A(\d+)/);
1928: my $row=$1;
1929: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1.128 matthew 1930: my @studentdata=&exportsheet($sheet,split(/\:/,$f{$_}),
1.104 matthew 1931: 'studentcalc');
1932: undef %userrdatas;
1933: $now++;
1934: $r->print('<script>popwin.document.popremain.remaining.value="'.
1.37 www 1935: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1.104 matthew 1936: ' secs remaining";</script>');
1937: $r->rflush();
1938: #
1939: my $index=0;
1940: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1941: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1942: if ($studentdata[$index]) {
1943: my $col=$_;
1944: if ($studentdata[$index]=~/\D/) {
1945: $c{$col.$row}="'".$studentdata[$index]."'";
1946: } else {
1947: $c{$col.$row}=$studentdata[$index];
1948: }
1949: unless ($col eq 'A') {
1950: $f{$col.$row}='import';
1951: }
1952: $index++;
1953: }
1.24 www 1954: }
1.78 matthew 1955: }
1.124 matthew 1956: $sheet->{'f'}=\%f;
1957: &setformulas($sheet);
1.122 matthew 1958: &setconstants($sheet,\%c);
1.43 www 1959: $r->print('<script>popwin.close()</script>');
1.37 www 1960: $r->rflush();
1.24 www 1961: }
1962:
1.6 www 1963: # ------------------------------------------------ Load data for one assessment
1.109 matthew 1964: #
1.29 www 1965: sub loadassessment {
1.119 matthew 1966: my ($sheet)=@_;
1.29 www 1967:
1.119 matthew 1968: my $uhome = $sheet->{'uhome'};
1969: my $uname = $sheet->{'uname'};
1970: my $udom = $sheet->{'udom'};
1971: my $symb = $sheet->{'usymb'};
1972: my $cid = $sheet->{'cid'};
1973: my $cnum = $sheet->{'cnum'};
1974: my $cdom = $sheet->{'cdom'};
1975: my $chome = $sheet->{'chome'};
1.29 www 1976:
1.6 www 1977: my $namespace;
1.29 www 1978: unless ($namespace=$cid) { return ''; }
1.104 matthew 1979: # Get stored values
1980: my %returnhash=();
1981: if ($cachedassess eq $uname.':'.$udom) {
1982: #
1983: # get data out of the dumped stores
1984: #
1985: my $version=$cachedstores{'version:'.$symb};
1986: my $scope;
1987: for ($scope=1;$scope<=$version;$scope++) {
1988: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1989: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1990: }
1991: }
1992: } else {
1993: #
1994: # restore individual
1995: #
1.109 matthew 1996: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
1997: for (my $version=1;$version<=$returnhash{'version'};$version++) {
1.104 matthew 1998: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1999: $returnhash{$_}=$returnhash{$version.':'.$_};
2000: }
2001: }
1.6 www 2002: }
1.109 matthew 2003: #
1.104 matthew 2004: # returnhash now has all stores for this resource
2005: # convert all "_" to "." to be able to use libraries, multiparts, etc
1.109 matthew 2006: #
2007: # This is dumb. It is also necessary :(
1.76 www 2008: my @oldkeys=keys %returnhash;
1.109 matthew 2009: #
1.116 matthew 2010: foreach my $name (@oldkeys) {
2011: my $value=$returnhash{$name};
2012: delete $returnhash{$name};
1.76 www 2013: $name=~s/\_/\./g;
2014: $returnhash{$name}=$value;
1.78 matthew 2015: }
1.104 matthew 2016: # initialize coursedata and userdata for this user
1.31 www 2017: undef %courseopt;
2018: undef %useropt;
1.29 www 2019:
2020: my $userprefix=$uname.'_'.$udom.'_';
1.116 matthew 2021:
1.11 www 2022: unless ($uhome eq 'no_host') {
1.104 matthew 2023: # Get coursedata
1.105 matthew 2024: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
1.116 matthew 2025: my %Tmp = &Apache::lonnet::dump('resourcedata',$cdom,$cnum);
2026: $courserdatas{$cid}=\%Tmp;
2027: $courserdatas{$cid.'.last_cache'}=time;
1.105 matthew 2028: }
1.116 matthew 2029: while (my ($name,$value) = each(%{$courserdatas{$cid}})) {
2030: $courseopt{$userprefix.$name}=$value;
1.104 matthew 2031: }
2032: # Get userdata (if present)
1.116 matthew 2033: unless ((time-$userrdatas{$uname.'@'.$udom.'.last_cache'})<240) {
2034: my %Tmp = &Apache::lonnet::dump('resourcedata',$udom,$uname);
2035: $userrdatas{$cid} = \%Tmp;
1.114 matthew 2036: # Most of the time the user does not have a 'resourcedata.db'
2037: # file. We need to cache that we got nothing instead of bothering
2038: # with requesting it every time.
1.116 matthew 2039: $userrdatas{$uname.'@'.$udom.'.last_cache'}=time;
1.109 matthew 2040: }
1.116 matthew 2041: while (my ($name,$value) = each(%{$userrdatas{$cid}})) {
2042: $useropt{$userprefix.$name}=$value;
1.104 matthew 2043: }
1.29 www 2044: }
1.104 matthew 2045: # now courseopt, useropt initialized for this user and course
2046: # (used by parmval)
2047: #
2048: # Load keys for this assessment only
2049: #
1.60 www 2050: my %thisassess=();
2051: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1.78 matthew 2052: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
1.60 www 2053: $thisassess{$_}=1;
1.78 matthew 2054: }
1.104 matthew 2055: #
2056: # Load parameters
2057: #
2058: my %c=();
2059: if (tie(%parmhash,'GDBM_File',
1.119 matthew 2060: $sheet->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
2061: my %f=&getformulas($sheet);
1.125 matthew 2062: foreach my $cell (keys(%f)) {
2063: next if ($cell !~ /^A/);
2064: next if ($f{$cell} =~/^[\!\~\-]/);
2065: if ($f{$cell}=~/^parameter/) {
2066: if (defined($thisassess{$f{$cell}})) {
2067: my $val = &parmval($f{$cell},$sheet);
2068: $c{$cell} = $val;
2069: $c{$f{$cell}} = $val;
1.104 matthew 2070: }
2071: } else {
1.125 matthew 2072: my $key=$f{$cell};
1.104 matthew 2073: my $ckey=$key;
2074: $key=~s/^stores\_/resource\./;
2075: $key=~s/\_/\./g;
1.125 matthew 2076: $c{$cell}=$returnhash{$key};
1.104 matthew 2077: $c{$ckey}=$returnhash{$key};
2078: }
1.6 www 2079: }
1.104 matthew 2080: untie(%parmhash);
1.78 matthew 2081: }
1.122 matthew 2082: &setconstants($sheet,\%c);
1.6 www 2083: }
2084:
1.10 www 2085: # --------------------------------------------------------- Various form fields
2086:
2087: sub textfield {
2088: my ($title,$name,$value)=@_;
2089: return "\n<p><b>$title:</b><br>".
1.104 matthew 2090: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1.10 www 2091: }
2092:
2093: sub hiddenfield {
2094: my ($name,$value)=@_;
2095: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2096: }
2097:
2098: sub selectbox {
2099: my ($title,$name,$value,%options)=@_;
2100: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
1.78 matthew 2101: foreach (sort keys(%options)) {
1.10 www 2102: $selout.='<option value="'.$_.'"';
2103: if ($_ eq $value) { $selout.=' selected'; }
2104: $selout.='>'.$options{$_}.'</option>';
1.78 matthew 2105: }
1.10 www 2106: return $selout.'</select>';
2107: }
2108:
1.28 www 2109: # =============================================== Update information in a sheet
2110: #
2111: # Add new users or assessments, etc.
2112: #
2113:
2114: sub updatesheet {
1.119 matthew 2115: my ($sheet)=@_;
2116: my $stype=$sheet->{'sheettype'};
1.28 www 2117: if ($stype eq 'classcalc') {
1.119 matthew 2118: return &updateclasssheet($sheet);
1.28 www 2119: } else {
1.119 matthew 2120: return &updatestudentassesssheet($sheet);
1.28 www 2121: }
2122: }
2123:
2124: # =================================================== Load the rows for a sheet
2125: #
2126: # Import the data for rows
2127: #
2128:
1.37 www 2129: sub loadrows {
1.119 matthew 2130: my ($sheet,$r)=@_;
2131: my $stype=$sheet->{'sheettype'};
1.28 www 2132: if ($stype eq 'classcalc') {
1.119 matthew 2133: &loadcourse($sheet,$r);
1.28 www 2134: } elsif ($stype eq 'studentcalc') {
1.119 matthew 2135: &loadstudent($sheet);
1.28 www 2136: } else {
1.119 matthew 2137: &loadassessment($sheet);
1.28 www 2138: }
2139: }
2140:
1.47 www 2141: # ======================================================= Forced recalculation?
2142:
2143: sub checkthis {
2144: my ($keyname,$time)=@_;
2145: return ($time<$expiredates{$keyname});
2146: }
1.104 matthew 2147:
1.47 www 2148: sub forcedrecalc {
2149: my ($uname,$udom,$stype,$usymb)=@_;
2150: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2151: my $time=$oldsheets{$key.'.time'};
1.53 www 2152: if ($ENV{'form.forcerecalc'}) { return 1; }
1.47 www 2153: unless ($time) { return 1; }
2154: if ($stype eq 'assesscalc') {
1.120 matthew 2155: my $map=(split(/___/,$usymb))[0];
1.47 www 2156: if (&checkthis('::assesscalc:',$time) ||
2157: &checkthis('::assesscalc:'.$map,$time) ||
2158: &checkthis('::assesscalc:'.$usymb,$time) ||
1.49 www 2159: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2160: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2161: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
1.47 www 2162: return 1;
2163: }
2164: } else {
2165: if (&checkthis('::studentcalc:',$time) ||
1.51 www 2166: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
1.47 www 2167: return 1;
2168: }
2169: }
2170: return 0;
2171: }
2172:
1.28 www 2173: # ============================================================== Export handler
1.128 matthew 2174: # exportsheet
2175: # returns the export row for a spreadsheet.
2176: #
1.28 www 2177: sub exportsheet {
1.128 matthew 2178: my ($sheet,$uname,$udom,$stype,$usymb,$fn)=@_;
2179: $uname = $uname || $sheet->{'uname'};
2180: $udom = $udom || $sheet->{'udom'};
2181: $stype = $stype || $sheet->{'sheettype'};
1.104 matthew 2182: my @exportarr=();
1.120 matthew 2183: if (defined($usymb) && ($usymb=~/^\_(\w+)/) && (!$fn)) {
1.104 matthew 2184: $fn='default_'.$1;
2185: }
2186: #
2187: # Check if cached
2188: #
2189: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2190: my $found='';
2191: if ($oldsheets{$key}) {
1.120 matthew 2192: foreach (split(/___&\___/,$oldsheets{$key})) {
2193: my ($name,$value)=split(/___=___/,$_);
1.46 www 2194: if ($name eq $fn) {
1.104 matthew 2195: $found=$value;
1.46 www 2196: }
1.104 matthew 2197: }
1.46 www 2198: }
1.104 matthew 2199: unless ($found) {
1.128 matthew 2200: &cachedssheets($sheet,$uname,$udom);
1.104 matthew 2201: if ($oldsheets{$key}) {
1.120 matthew 2202: foreach (split(/___&\___/,$oldsheets{$key})) {
2203: my ($name,$value)=split(/___=___/,$_);
1.104 matthew 2204: if ($name eq $fn) {
2205: $found=$value;
2206: }
2207: }
2208: }
1.44 www 2209: }
1.104 matthew 2210: #
2211: # Check if still valid
2212: #
2213: if ($found) {
2214: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2215: $found='';
2216: }
2217: }
2218: if ($found) {
2219: #
2220: # Return what was cached
2221: #
1.120 matthew 2222: @exportarr=split(/___;___/,$found);
2223: return @exportarr;
2224: }
2225: #
2226: # Not cached
2227: #
1.128 matthew 2228: my ($newsheet)=&makenewsheet($uname,$udom,$stype,$usymb);
2229: &readsheet($newsheet,$fn);
2230: &updatesheet($newsheet);
2231: &loadrows($newsheet);
2232: &calcsheet($newsheet);
2233: @exportarr=&exportdata($newsheet);
1.120 matthew 2234: #
2235: # Store now
2236: #
1.128 matthew 2237: my $cid=$newsheet->{'cid'};
1.120 matthew 2238: my $current='';
2239: if ($stype eq 'studentcalc') {
1.128 matthew 2240: $current=&Apache::lonnet::reply('get:'.$sheet->{'cdom'}.':'.
2241: $sheet->{'cnum'}.
1.120 matthew 2242: ':nohist_calculatedsheets:'.
2243: &Apache::lonnet::escape($key),
1.128 matthew 2244: $sheet->{'chome'});
1.120 matthew 2245: } else {
2246: $current=&Apache::lonnet::reply('get:'.$sheet->{'udom'}.':'.
2247: $sheet->{'uname'}.
2248: ':nohist_calculatedsheets_'.
1.128 matthew 2249: $sheet->{'cid'}.':'.
1.120 matthew 2250: &Apache::lonnet::escape($key),
2251: $sheet->{'uhome'});
2252: }
2253: my %currentlystored=();
2254: unless ($current=~/^error\:/) {
2255: foreach (split(/___&\___/,&Apache::lonnet::unescape($current))) {
2256: my ($name,$value)=split(/___=___/,$_);
2257: $currentlystored{$name}=$value;
2258: }
2259: }
2260: $currentlystored{$fn}=join('___;___',@exportarr);
2261: #
2262: my $newstore='';
2263: foreach (keys(%currentlystored)) {
2264: if ($newstore) { $newstore.='___&___'; }
2265: $newstore.=$_.'___=___'.$currentlystored{$_};
2266: }
2267: my $now=time;
2268: if ($stype eq 'studentcalc') {
2269: &Apache::lonnet::put('nohist_calculatedsheets',
2270: { $key => $newstore,
2271: $key.time => $now },
1.128 matthew 2272: $sheet->{'cid'},$sheet->{'cnum'});
1.120 matthew 2273: } else {
2274: &Apache::lonnet::put('nohist_calculatedsheets_'.$sheet->{'cid'},
2275: { $key => $newstore,
2276: $key.time => $now },
2277: $sheet->{'udom'},
2278: $sheet->{'uname'})
1.78 matthew 2279: }
1.104 matthew 2280: return @exportarr;
1.44 www 2281: }
1.104 matthew 2282:
1.48 www 2283: # ============================================================ Expiration Dates
2284: #
2285: # Load previously cached student spreadsheets for this course
2286: #
2287: sub expirationdates {
2288: undef %expiredates;
2289: my $cid=$ENV{'request.course.id'};
1.128 matthew 2290: my @tmp = &Apache::lonnet::dump('nohist_expirationdates',
2291: $ENV{'course.'.$cid.'.domain'},
2292: $ENV{'course.'.$cid.'.num'});
2293: if (lc($tmp[0])!~/^error/){
2294: %expiredates = @tmp;
1.48 www 2295: }
2296: }
1.44 www 2297:
2298: # ===================================================== Calculated sheets cache
2299: #
1.46 www 2300: # Load previously cached student spreadsheets for this course
1.44 www 2301: #
2302:
1.46 www 2303: sub cachedcsheets {
1.44 www 2304: my $cid=$ENV{'request.course.id'};
1.128 matthew 2305: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
2306: $ENV{'course.'.$cid.'.domain'},
2307: $ENV{'course.'.$cid.'.num'});
2308: if ($tmp[0] !~ /^error/) {
2309: my %StupidTempHash = @tmp;
2310: while (my ($key,$value) = each %StupidTempHash) {
2311: $oldsheets{$key} = $value;
1.78 matthew 2312: }
1.44 www 2313: }
1.28 www 2314: }
2315:
1.46 www 2316: # ===================================================== Calculated sheets cache
2317: #
2318: # Load previously cached assessment spreadsheets for this student
2319: #
2320:
2321: sub cachedssheets {
1.128 matthew 2322: my ($sheet,$uname,$udom) = @_;
2323: $uname = $uname || $sheet->{'uname'};
2324: $udom = $udom || $sheet->{'udom'};
2325: if (! $loadedcaches{$sheet->{'uname'}.'_'.$sheet->{'udom'}}) {
2326: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
2327: $sheet->{'udom'},
2328: $sheet->{'uname'});
2329: if ($tmp[0] !~ /^error/) {
2330: my %StupidTempHash = @tmp;
2331: while (my ($key,$value) = each %StupidTempHash) {
2332: $oldsheets{$key} = $value;
2333: }
2334: $loadedcaches{$sheet->{'uname'}.'_'.$sheet->{'udom'}}=1;
1.78 matthew 2335: }
1.46 www 2336: }
2337: }
2338:
2339: # ===================================================== Calculated sheets cache
2340: #
2341: # Load previously cached assessment spreadsheets for this student
2342: #
2343:
1.12 www 2344: # ================================================================ Main handler
1.28 www 2345: #
2346: # Interactive call to screen
2347: #
2348: #
1.3 www 2349: sub handler {
1.7 www 2350: my $r=shift;
1.110 www 2351:
1.118 matthew 2352: if (! exists($ENV{'form.Status'})) {
2353: $ENV{'form.Status'} = 'Active';
2354: }
1.116 matthew 2355: # Check this server
1.111 matthew 2356: my $loaderror=&Apache::lonnet::overloaderror($r);
2357: if ($loaderror) { return $loaderror; }
1.116 matthew 2358: # Check the course homeserver
1.111 matthew 2359: $loaderror= &Apache::lonnet::overloaderror($r,
2360: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
2361: if ($loaderror) { return $loaderror; }
1.116 matthew 2362:
1.28 www 2363: if ($r->header_only) {
1.104 matthew 2364: $r->content_type('text/html');
2365: $r->send_http_header;
2366: return OK;
2367: }
2368: # Global directory configs
1.106 matthew 2369: $includedir = $r->dir_config('lonIncludes');
2370: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
1.104 matthew 2371: # Needs to be in a course
1.106 matthew 2372: if (! $ENV{'request.course.fn'}) {
2373: # Not in a course, or not allowed to modify parms
2374: $ENV{'user.error.msg'}=
2375: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2376: return HTTP_NOT_ACCEPTABLE;
2377: }
2378: # Get query string for limited number of parameters
2379: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2380: ['uname','udom','usymb','ufn']);
1.111 matthew 2381: if ($ENV{'request.role'} =~ /^st\./) {
2382: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
2383: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
2384: }
1.106 matthew 2385: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2386: $ENV{'form.ufn'}='default_'.$1;
2387: }
2388: # Interactive loading of specific sheet?
2389: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2390: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2391: }
2392: #
2393: # Determine the user name and domain for the sheet.
2394: my $aname;
2395: my $adom;
2396: unless ($ENV{'form.uname'}) {
2397: $aname=$ENV{'user.name'};
2398: $adom=$ENV{'user.domain'};
2399: } else {
2400: $aname=$ENV{'form.uname'};
2401: $adom=$ENV{'form.udom'};
2402: }
2403: #
2404: # Open page
2405: $r->content_type('text/html');
2406: $r->header_out('Cache-control','no-cache');
2407: $r->header_out('Pragma','no-cache');
2408: $r->send_http_header;
2409: # Screen output
2410: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
1.111 matthew 2411: if ($ENV{'request.role'} !~ /^st\./) {
2412: $r->print(<<ENDSCRIPT);
1.10 www 2413: <script language="JavaScript">
2414:
2415: function celledit(cn,cf) {
2416: var cnf=prompt(cn,cf);
1.86 matthew 2417: if (cnf!=null) {
2418: document.sheet.unewfield.value=cn;
1.10 www 2419: document.sheet.unewformula.value=cnf;
2420: document.sheet.submit();
2421: }
2422: }
2423:
1.55 www 2424: function changesheet(cn) {
2425: document.sheet.unewfield.value=cn;
2426: document.sheet.unewformula.value='changesheet';
2427: document.sheet.submit();
2428: }
2429:
1.92 www 2430: function insertrow(cn) {
2431: document.sheet.unewfield.value='insertrow';
2432: document.sheet.unewformula.value=cn;
2433: document.sheet.submit();
2434: }
2435:
1.10 www 2436: </script>
2437: ENDSCRIPT
1.111 matthew 2438: }
1.106 matthew 2439: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
2440: '<form action="'.$r->uri.'" name=sheet method=post>');
2441: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
2442: &hiddenfield('udom',$ENV{'form.udom'}).
2443: &hiddenfield('usymb',$ENV{'form.usymb'}).
2444: &hiddenfield('unewfield','').
2445: &hiddenfield('unewformula',''));
2446: $r->rflush();
2447: #
2448: # Full recalc?
2449: if ($ENV{'form.forcerecalc'}) {
2450: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2451: undef %spreadsheets;
2452: undef %courserdatas;
2453: undef %userrdatas;
2454: undef %defaultsheets;
2455: undef %updatedata;
2456: }
2457: # Read new sheet or modified worksheet
2458: $r->uri=~/\/(\w+)$/;
1.119 matthew 2459: my ($sheet)=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
1.106 matthew 2460: #
2461: # If a new formula had been entered, go from work copy
2462: if ($ENV{'form.unewfield'}) {
2463: $r->print('<h2>Modified Workcopy</h2>');
2464: $ENV{'form.unewformula'}=~s/\'/\"/g;
2465: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2466: $ENV{'form.unewformula'}.'<p>');
1.119 matthew 2467: $sheet->{'filename'} = $ENV{'form.ufn'};
2468: &tmpread($sheet,$ENV{'form.unewfield'},$ENV{'form.unewformula'});
1.106 matthew 2469: } elsif ($ENV{'form.saveas'}) {
1.119 matthew 2470: $sheet->{'filename'} = $ENV{'form.ufn'};
2471: &tmpread($sheet);
1.106 matthew 2472: } else {
1.119 matthew 2473: &readsheet($sheet,$ENV{'form.ufn'});
1.106 matthew 2474: }
2475: # Print out user information
1.120 matthew 2476: if ($sheet->{'sheettype'} ne 'classcalc') {
1.119 matthew 2477: $r->print('<p><b>User:</b> '.$sheet->{'uname'}.
2478: '<br><b>Domain:</b> '.$sheet->{'udom'});
2479: $r->print('<br><b>Section/Group:</b> '.$sheet->{'csec'});
1.106 matthew 2480: if ($ENV{'form.usymb'}) {
2481: $r->print('<br><b>Assessment:</b> <tt>'.
2482: $ENV{'form.usymb'}.'</tt>');
1.30 www 2483: }
1.106 matthew 2484: }
2485: #
2486: # Check user permissions
1.119 matthew 2487: if (($sheet->{'sheettype'} eq 'classcalc' ) ||
2488: ($sheet->{'uname'} ne $ENV{'user.name'} ) ||
2489: ($sheet->{'udom'} ne $ENV{'user.domain'})) {
2490: unless (&Apache::lonnet::allowed('vgr',$sheet->{'cid'})) {
1.106 matthew 2491: $r->print('<h1>Access Permission Denied</h1>'.
2492: '</form></body></html>');
2493: return OK;
2494: }
2495: }
2496: # Additional options
2497: $r->print('<br />'.
2498: '<input type="submit" name="forcerecalc" '.
2499: 'value="Completely Recalculate Sheet"><p>');
1.119 matthew 2500: if ($sheet->{'sheettype'} eq 'assesscalc') {
1.106 matthew 2501: $r->print('<p><font size=+2>'.
2502: '<a href="/adm/studentcalc?'.
1.119 matthew 2503: 'uname='.$sheet->{'uname'}.
2504: '&udom='.$sheet->{'udom'}.'">'.
1.106 matthew 2505: 'Level up: Student Sheet</a></font><p>');
2506: }
1.119 matthew 2507: if (($sheet->{'sheettype'} eq 'studentcalc') &&
2508: (&Apache::lonnet::allowed('vgr',$sheet->{'cid'}))) {
1.106 matthew 2509: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
2510: 'Level up: Course Sheet</a></font><p>');
2511: }
2512: # Save dialog
2513: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2514: my $fname=$ENV{'form.ufn'};
2515: $fname=~s/\_[^\_]+$//;
2516: if ($fname eq 'default') { $fname='course_default'; }
2517: $r->print('<input type=submit name=saveas value="Save as ...">'.
2518: '<input type=text size=20 name=newfn value="'.$fname.'">'.
2519: 'make default: <input type=checkbox name="makedefufn"><p>');
2520: }
1.119 matthew 2521: $r->print(&hiddenfield('ufn',$sheet->{'filename'}));
1.106 matthew 2522: # Load dialog
2523: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2524: $r->print('<p><input type=submit name=load value="Load ...">'.
2525: '<select name="loadthissheet">'.
2526: '<option name="default">Default</option>');
1.119 matthew 2527: foreach (&othersheets($sheet)) {
1.106 matthew 2528: $r->print('<option name="'.$_.'"');
2529: if ($ENV{'form.ufn'} eq $_) {
2530: $r->print(' selected');
1.104 matthew 2531: }
1.106 matthew 2532: $r->print('>'.$_.'</option>');
2533: }
2534: $r->print('</select><p>');
1.119 matthew 2535: if ($sheet->{'sheettype'} eq 'studentcalc') {
1.116 matthew 2536: &setothersheets($sheet,
1.119 matthew 2537: &othersheets($sheet,'assesscalc'));
1.104 matthew 2538: }
1.106 matthew 2539: }
2540: # Cached sheets
2541: &expirationdates();
2542: undef %oldsheets;
2543: undef %loadedcaches;
1.119 matthew 2544: if ($sheet->{'sheettype'} eq 'classcalc') {
1.106 matthew 2545: $r->print("Loading previously calculated student sheets ...\n");
1.104 matthew 2546: $r->rflush();
1.106 matthew 2547: &cachedcsheets();
1.119 matthew 2548: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1.106 matthew 2549: $r->print("Loading previously calculated assessment sheets ...\n");
1.46 www 2550: $r->rflush();
1.128 matthew 2551: &cachedssheets($sheet);
1.106 matthew 2552: }
2553: # Update sheet, load rows
2554: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2555: $r->rflush();
2556: #
1.119 matthew 2557: &updatesheet($sheet);
1.106 matthew 2558: $r->print("Updated rows, loading row data ...\n");
2559: $r->rflush();
2560: #
1.119 matthew 2561: &loadrows($sheet,$r);
1.106 matthew 2562: $r->print("Loaded row data, calculating sheet ...<br>\n");
2563: $r->rflush();
2564: #
1.116 matthew 2565: my $calcoutput=&calcsheet($sheet);
1.106 matthew 2566: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2567: # See if something to save
2568: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2569: my $fname='';
2570: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2571: $fname=~s/\W/\_/g;
2572: if ($fname eq 'default') { $fname='course_default'; }
1.119 matthew 2573: $fname.='_'.$sheet->{'sheettype'};
2574: $sheet->{'filename'} = $fname;
1.106 matthew 2575: $ENV{'form.ufn'}=$fname;
2576: $r->print('<p>Saving spreadsheet: '.
1.119 matthew 2577: &writesheet($sheet,$ENV{'form.makedefufn'}).
1.116 matthew 2578: '<p>');
1.104 matthew 2579: }
1.106 matthew 2580: }
2581: #
1.116 matthew 2582: # Write the modified worksheet
1.119 matthew 2583: $r->print('<b>Current sheet:</b> '.$sheet->{'filename'}.'<p>');
2584: &tmpwrite($sheet);
2585: if ($sheet->{'sheettype'} eq 'studentcalc') {
1.106 matthew 2586: $r->print('<br>Show rows with empty A column: ');
1.62 www 2587: } else {
2588: $r->print('<br>Show empty rows: ');
1.120 matthew 2589: }
1.106 matthew 2590: #
1.77 www 2591: $r->print(&hiddenfield('userselhidden','true').
1.106 matthew 2592: '<input type="checkbox" name="showall" onClick="submit()"');
2593: #
1.77 www 2594: if ($ENV{'form.showall'}) {
1.106 matthew 2595: $r->print(' checked');
1.77 www 2596: } else {
1.106 matthew 2597: unless ($ENV{'form.userselhidden'}) {
2598: unless
1.128 matthew 2599: ($ENV{'course.'.$sheet->{'cid'}.'.hideemptyrows'} eq 'yes') {
1.106 matthew 2600: $r->print(' checked');
2601: $ENV{'form.showall'}=1;
2602: }
2603: }
1.77 www 2604: }
1.61 www 2605: $r->print('>');
1.120 matthew 2606: #
2607: # CSV format checkbox (classcalc sheets only)
2608: $r->print(' Output CSV format: <input type="checkbox" '.
2609: 'name="showcsv" onClick="submit()"');
2610: $r->print(' checked') if ($ENV{'form.showcsv'});
2611: $r->print('>');
1.119 matthew 2612: if ($sheet->{'sheettype'} eq 'classcalc') {
2613: $r->print(' Student Status: '.
2614: &Apache::lonhtmlcommon::StatusOptions
2615: ($ENV{'form.Status'},'sheet'));
1.69 www 2616: }
1.120 matthew 2617: #
2618: # Buttons to insert rows
1.106 matthew 2619: $r->print(<<ENDINSERTBUTTONS);
1.92 www 2620: <br>
2621: <input type='button' onClick='insertrow("top");'
2622: value='Insert Row Top'>
2623: <input type='button' onClick='insertrow("bottom");'
2624: value='Insert Row Bottom'><br>
2625: ENDINSERTBUTTONS
1.106 matthew 2626: # Print out sheet
1.119 matthew 2627: &outsheet($r,$sheet);
1.10 www 2628: $r->print('</form></body></html>');
1.106 matthew 2629: # Done
1.3 www 2630: return OK;
1.1 www 2631: }
2632:
2633: 1;
2634: __END__
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