1: #
2: # $Id: lonspreadsheet.pm,v 1.85 2002/04/11 14:16:32 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # 11/11,11/15,11/27,12/04,12/05,12/06,12/07,
30: # 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30,
31: # 01/01/01,02/01,03/01,19/01,20/01,22/01,
32: # 03/05,03/08,03/10,03/12,03/13,03/15,03/17,
33: # 03/19,03/20,03/21,03/27,04/05,04/09,
34: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17,
35: # 10/16,10/17,10/20,11/05,11/28,12/27 Gerd Kortemeyer
36: # 01/14/02 Matthew
37: # 02/04/02 Matthew
38:
39: # POD required stuff:
40:
41: =head1 NAME
42:
43: lonspreadsheet
44:
45: =head1 SYNOPSIS
46:
47: Spreadsheet interface to internal LON-CAPA data
48:
49: =head1 DESCRIPTION
50:
51: Lonspreadsheet provides course coordinators the ability to manage their
52: students grades online. The students are able to view their own grades, but
53: not the grades of their peers. The spreadsheet is highly customizable,
54: offering the ability to use Perl code to manipulate data, as well as many
55: built-in functions.
56:
57:
58: =head2 Functions available to user of lonspreadsheet
59:
60: =over 4
61:
62: =cut
63:
64: package Apache::lonspreadsheet;
65:
66: use strict;
67: use Safe;
68: use Safe::Hole;
69: use Opcode;
70: use Apache::lonnet;
71: use Apache::Constants qw(:common :http);
72: use GDBM_File;
73: use HTML::TokeParser;
74:
75: #
76: # Caches for previously calculated spreadsheets
77: #
78:
79: my %oldsheets;
80: my %loadedcaches;
81: my %expiredates;
82:
83: #
84: # Cache for stores of an individual user
85: #
86:
87: my $cachedassess;
88: my %cachedstores;
89:
90: #
91: # These cache hashes need to be independent of user, resource and course
92: # (user and course can/should be in the keys)
93: #
94:
95: my %spreadsheets;
96: my %courserdatas;
97: my %userrdatas;
98: my %defaultsheets;
99: my %updatedata;
100:
101: #
102: # These global hashes are dependent on user, course and resource,
103: # and need to be initialized every time when a sheet is calculated
104: #
105: my %courseopt;
106: my %useropt;
107: my %parmhash;
108:
109: # Stuff that only the screen handler can know
110:
111: my $includedir;
112: my $tmpdir;
113:
114: # =============================================================================
115: # ===================================== Implements an instance of a spreadsheet
116:
117: sub initsheet {
118: my $safeeval = new Safe(shift);
119: my $safehole = new Safe::Hole;
120: $safeeval->permit("entereval");
121: $safeeval->permit(":base_math");
122: $safeeval->permit("sort");
123: $safeeval->deny(":base_io");
124: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
125: my $code=<<'ENDDEFS';
126: # ---------------------------------------------------- Inside of the safe space
127:
128: #
129: # f: formulas
130: # t: intermediate format (variable references expanded)
131: # v: output values
132: # c: preloaded constants (A-column)
133: # rl: row label
134: # os: other spreadsheets (for student spreadsheet only)
135:
136: undef %v;
137: undef %t;
138: undef %f;
139: undef %c;
140: undef %rl;
141: undef @os;
142:
143: $maxrow=0;
144: $sheettype='';
145:
146: # filename/reference of the sheet
147:
148: $filename='';
149:
150: # user data
151: $uname='';
152: $uhome='';
153: $udom='';
154:
155: # course data
156:
157: $csec='';
158: $chome='';
159: $cnum='';
160: $cdom='';
161: $cid='';
162: $cfn='';
163:
164: # symb
165:
166: $usymb='';
167:
168: sub mask {
169: my ($lower,$upper)=@_;
170:
171: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
172: my $la=$1;
173: my $ld=$2;
174:
175: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
176: my $ua=$1;
177: my $ud=$2;
178: my $alpha='';
179: my $num='';
180:
181: if (($la eq '*') || ($ua eq '*')) {
182: $alpha='[A-Za-z]';
183: } else {
184: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
185: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
186: $alpha='['.$la.'-'.$ua.']';
187: } else {
188: $alpha='['.$la.'-Za-'.$ua.']';
189: }
190: }
191:
192: if (($ld eq '*') || ($ud eq '*')) {
193: $num='\d+';
194: } else {
195: if (length($ld)!=length($ud)) {
196: $num.='(';
197: foreach ($ld=~m/\d/g) {
198: $num.='['.$_.'-9]';
199: }
200: if (length($ud)-length($ld)>1) {
201: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
202: }
203: $num.='|';
204: foreach ($ud=~m/\d/g) {
205: $num.='[0-'.$_.']';
206: }
207: $num.=')';
208: } else {
209: my @lda=($ld=~m/\d/g);
210: my @uda=($ud=~m/\d/g);
211: my $i; $j=0; $notdone=1;
212: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
213: if ($lda[$i]==$uda[$i]) {
214: $num.=$lda[$i];
215: $j=$i;
216: } else {
217: $notdone=0;
218: }
219: }
220: if ($j<$#lda-1) {
221: $num.='('.$lda[$j+1];
222: for ($i=$j+2;$i<=$#lda;$i++) {
223: $num.='['.$lda[$i].'-9]';
224: }
225: if ($uda[$j+1]-$lda[$j+1]>1) {
226: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
227: ($#lda-$j-1).'}';
228: }
229: $num.='|'.$uda[$j+1];
230: for ($i=$j+2;$i<=$#uda;$i++) {
231: $num.='[0-'.$uda[$i].']';
232: }
233: $num.=')';
234: } else {
235: if ($lda[$#lda]!=$uda[$#uda]) {
236: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
237: }
238: }
239: }
240: }
241: return '^'.$alpha.$num."\$";
242: }
243:
244: #-------------------------------------------------------
245:
246: =item UWCALC(hashname,modules,units,date)
247:
248: returns the proportion of the module
249: weights not previously completed by the student.
250:
251: =over 4
252:
253: =item hashname
254:
255: name of the hash the module dates have been inserted into
256:
257: =item modules
258:
259: reference to a cell which contains a comma deliminated list of modules
260: covered by the assignment.
261:
262: =item units
263:
264: reference to a cell which contains a comma deliminated list of module
265: weights with respect to the assignment
266:
267: =item date
268:
269: reference to a cell which contains the date the assignment was completed.
270:
271: =back
272:
273: =cut
274:
275: #-------------------------------------------------------
276: sub UWCALC {
277: my ($hashname,$modules,$units,$date) = @_;
278: my @Modules = split(/,/,$modules);
279: my @Units = split(/,/,$units);
280: my $total_weight;
281: foreach (@Units) {
282: $total_weight += $_;
283: }
284: my $usum=0;
285: for (my $i=0; $i<=$#Modules; $i++) {
286: if (&HASH($hashname,$Modules[$i]) eq $date) {
287: $usum += $Units[$i];
288: }
289: }
290: return $usum/$total_weight;
291: }
292:
293: #-------------------------------------------------------
294:
295: =item CDLSUM(list)
296:
297: returns the sum of the elements in a cell which contains
298: a Comma Deliminate List of numerical values.
299: 'list' is a reference to a cell which contains a comma deliminated list.
300:
301: =cut
302:
303: #-------------------------------------------------------
304: sub CDLSUM {
305: my ($list)=@_;
306: my $sum;
307: foreach (split/,/,$list) {
308: $sum += $_;
309: }
310: return $sum;
311: }
312:
313: #-------------------------------------------------------
314:
315: =item CDLITEM(list,index)
316:
317: returns the item at 'index' in a Comma Deliminated List.
318:
319: =over 4
320:
321: =item list
322:
323: reference to a cell which contains a comma deliminated list.
324:
325: =item index
326:
327: the Perl index of the item requested (first element in list has
328: an index of 0)
329:
330: =back
331:
332: =cut
333:
334: #-------------------------------------------------------
335: sub CDLITEM {
336: my ($list,$index)=@_;
337: my @Temp = split/,/,$list;
338: return $Temp[$index];
339: }
340:
341: #-------------------------------------------------------
342:
343: =item CDLHASH(name,key,value)
344:
345: loads a comma deliminated list of keys into
346: the hash 'name', all with a value of 'value'.
347:
348: =over 4
349:
350: =item name
351:
352: name of the hash.
353:
354: =item key
355:
356: (a pointer to) a comma deliminated list of keys.
357:
358: =item value
359:
360: a single value to be entered for each key.
361:
362: =back
363:
364: =cut
365:
366: #-------------------------------------------------------
367: sub CDLHASH {
368: my ($name,$key,$value)=@_;
369: my @Keys;
370: my @Values;
371: # Check to see if we have multiple $key values
372: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
373: my $keymask = &mask($key);
374: # Assume the keys are addresses
375: my @Temp = grep /$keymask/,keys(%v);
376: @Keys = $v{@Temp};
377: } else {
378: $Keys[0]= $key;
379: }
380: my @Temp;
381: foreach $key (@Keys) {
382: @Temp = (@Temp, split/,/,$key);
383: }
384: @Keys = @Temp;
385: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
386: my $valmask = &mask($value);
387: my @Temp = grep /$valmask/,keys(%v);
388: @Values =$v{@Temp};
389: } else {
390: $Values[0]= $value;
391: }
392: $value = $Values[0];
393: # Add values to hash
394: for (my $i = 0; $i<=$#Keys; $i++) {
395: my $key = $Keys[$i];
396: if (! exists ($hashes{$name}->{$key})) {
397: $hashes{$name}->{$key}->[0]=$value;
398: } else {
399: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
400: $hashes{$name}->{$key} = \@Temp;
401: }
402: }
403: return "hash '$name' updated";
404: }
405:
406: #-------------------------------------------------------
407:
408: =item GETHASH(name,key,index)
409:
410: returns the element in hash 'name'
411: reference by the key 'key', at index 'index' in the values list.
412:
413: =cut
414:
415: #-------------------------------------------------------
416: sub GETHASH {
417: my ($name,$key,$index)=@_;
418: if (! defined($index)) {
419: $index = 0;
420: }
421: if ($key =~ /^[A-z]\d+$/) {
422: $key = $v{$key};
423: }
424: return $hashes{$name}->{$key}->[$index];
425: }
426:
427: #-------------------------------------------------------
428:
429: =item CLEARHASH(name)
430:
431: clears all the values from the hash 'name'
432:
433: =item CLEARHASH(name,key)
434:
435: clears all the values from the hash 'name' associated with the given key.
436:
437: =cut
438:
439: #-------------------------------------------------------
440: sub CLEARHASH {
441: my ($name,$key)=@_;
442: if (defined($key)) {
443: if (exists($hashes{$name}->{$key})) {
444: $hashes{$name}->{$key}=undef;
445: return "hash '$name' key '$key' cleared";
446: }
447: } else {
448: if (exists($hashes{$name})) {
449: $hashes{$name}=undef;
450: return "hash '$name' cleared";
451: }
452: }
453: return "Error in clearing hash";
454: }
455:
456: #-------------------------------------------------------
457:
458: =item HASH(name,key,value)
459:
460: loads values into an internal hash. If a key
461: already has a value associated with it, the values are sorted numerically.
462:
463: =item HASH(name,key)
464:
465: returns the 0th value in the hash 'name' associated with 'key'.
466:
467: =cut
468:
469: #-------------------------------------------------------
470: sub HASH {
471: my ($name,$key,$value)=@_;
472: my @Keys;
473: undef @Keys;
474: my @Values;
475: # Check to see if we have multiple $key values
476: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
477: my $keymask = &mask($key);
478: # Assume the keys are addresses
479: my @Temp = grep /$keymask/,keys(%v);
480: @Keys = $v{@Temp};
481: } else {
482: $Keys[0]= $key;
483: }
484: # If $value is empty, return the first value associated
485: # with the first key.
486: if (! $value) {
487: return $hashes{$name}->{$Keys[0]}->[0];
488: }
489: # Check to see if we have multiple $value(s)
490: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
491: my $valmask = &mask($value);
492: my @Temp = grep /$valmask/,keys(%v);
493: @Values =$v{@Temp};
494: } else {
495: $Values[0]= $value;
496: }
497: # Add values to hash
498: for (my $i = 0; $i<=$#Keys; $i++) {
499: my $key = $Keys[$i];
500: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
501: if (! exists ($hashes{$name}->{$key})) {
502: $hashes{$name}->{$key}->[0]=$value;
503: } else {
504: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
505: $hashes{$name}->{$key} = \@Temp;
506: }
507: }
508: return $Values[-1];
509: }
510:
511: #-------------------------------------------------------
512:
513: =item NUM(range)
514:
515: returns the number of items in the range.
516:
517: =cut
518:
519: #-------------------------------------------------------
520: sub NUM {
521: my $mask=mask(@_);
522: my $num= $#{@{grep(/$mask/,keys(%v))}}+1;
523: return $num;
524: }
525:
526: sub BIN {
527: my ($low,$high,$lower,$upper)=@_;
528: my $mask=mask($lower,$upper);
529: my $num=0;
530: foreach (grep /$mask/,keys(%v)) {
531: if (($v{$_}>=$low) && ($v{$_}<=$high)) {
532: $num++;
533: }
534: }
535: return $num;
536: }
537:
538:
539: #-------------------------------------------------------
540:
541: =item SUM(range)
542:
543: returns the sum of items in the range.
544:
545: =cut
546:
547: #-------------------------------------------------------
548: sub SUM {
549: my $mask=mask(@_);
550: my $sum=0;
551: foreach (grep /$mask/,keys(%v)) {
552: $sum+=$v{$_};
553: }
554: return $sum;
555: }
556:
557: #-------------------------------------------------------
558:
559: =item MEAN(range)
560:
561: compute the average of the items in the range.
562:
563: =cut
564:
565: #-------------------------------------------------------
566: sub MEAN {
567: my $mask=mask(@_);
568: my $sum=0; my $num=0;
569: foreach (grep /$mask/,keys(%v)) {
570: $sum+=$v{$_};
571: $num++;
572: }
573: if ($num) {
574: return $sum/$num;
575: } else {
576: return undef;
577: }
578: }
579:
580: #-------------------------------------------------------
581:
582: =item STDDEV(range)
583:
584: compute the standard deviation of the items in the range.
585:
586: =cut
587:
588: #-------------------------------------------------------
589: sub STDDEV {
590: my $mask=mask(@_);
591: my $sum=0; my $num=0;
592: foreach (grep /$mask/,keys(%v)) {
593: $sum+=$v{$_};
594: $num++;
595: }
596: unless ($num>1) { return undef; }
597: my $mean=$sum/$num;
598: $sum=0;
599: foreach (grep /$mask/,keys(%v)) {
600: $sum+=($v{$_}-$mean)**2;
601: }
602: return sqrt($sum/($num-1));
603: }
604:
605: #-------------------------------------------------------
606:
607: =item PROD(range)
608:
609: compute the product of the items in the range.
610:
611: =cut
612:
613: #-------------------------------------------------------
614: sub PROD {
615: my $mask=mask(@_);
616: my $prod=1;
617: foreach (grep /$mask/,keys(%v)) {
618: $prod*=$v{$_};
619: }
620: return $prod;
621: }
622:
623: #-------------------------------------------------------
624:
625: =item MAX(range)
626:
627: compute the maximum of the items in the range.
628:
629: =cut
630:
631: #-------------------------------------------------------
632: sub MAX {
633: my $mask=mask(@_);
634: my $max='-';
635: foreach (grep /$mask/,keys(%v)) {
636: unless ($max) { $max=$v{$_}; }
637: if (($v{$_}>$max) || ($max eq '-')) { $max=$v{$_}; }
638: }
639: return $max;
640: }
641:
642: #-------------------------------------------------------
643:
644: =item MIN(range)
645:
646: compute the minimum of the items in the range.
647:
648: =cut
649:
650: #-------------------------------------------------------
651: sub MIN {
652: my $mask=mask(@_);
653: my $min='-';
654: foreach (grep /$mask/,keys(%v)) {
655: unless ($max) { $max=$v{$_}; }
656: if (($v{$_}<$min) || ($min eq '-')) { $min=$v{$_}; }
657: }
658: return $min;
659: }
660:
661: #-------------------------------------------------------
662:
663: =item SUMMAX(num,lower,upper)
664:
665: compute the sum of the largest 'num' items in the range from
666: 'lower' to 'upper'
667:
668: =cut
669:
670: #-------------------------------------------------------
671: sub SUMMAX {
672: my ($num,$lower,$upper)=@_;
673: my $mask=mask($lower,$upper);
674: my @inside=();
675: foreach (grep /$mask/,keys(%v)) {
676: push (@inside,$v{$_});
677: }
678: @inside=sort(@inside);
679: my $sum=0; my $i;
680: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
681: $sum+=$inside[$i];
682: }
683: return $sum;
684: }
685:
686: #-------------------------------------------------------
687:
688: =item SUMMIN(num,lower,upper)
689:
690: compute the sum of the smallest 'num' items in the range from
691: 'lower' to 'upper'
692:
693: =cut
694:
695: #-------------------------------------------------------
696: sub SUMMIN {
697: my ($num,$lower,$upper)=@_;
698: my $mask=mask($lower,$upper);
699: my @inside=();
700: foreach (grep /$mask/,keys(%v)) {
701: $inside[$#inside+1]=$v{$_};
702: }
703: @inside=sort(@inside);
704: my $sum=0; my $i;
705: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
706: $sum+=$inside[$i];
707: }
708: return $sum;
709: }
710:
711: sub expandnamed {
712: my $expression=shift;
713: if ($expression=~/^\&/) {
714: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
715: my @vars=split(/\W+/,$formula);
716: my %values=();
717: undef %values;
718: foreach ( @vars ) {
719: my $varname=$_;
720: if ($varname=~/\D/) {
721: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
722: $varname=~s/$var/\(\\w\+\)/g;
723: foreach (keys(%c)) {
724: if ($_=~/$varname/) {
725: $values{$1}=1;
726: }
727: }
728: }
729: }
730: if ($func eq 'EXPANDSUM') {
731: my $result='';
732: foreach (keys(%values)) {
733: my $thissum=$formula;
734: $thissum=~s/$var/$_/g;
735: $result.=$thissum.'+';
736: }
737: $result=~s/\+$//;
738: return $result;
739: } else {
740: return 0;
741: }
742: } else {
743: return '$c{\''.$expression.'\'}';
744: }
745: }
746:
747: sub sett {
748: %t=();
749: my $pattern='';
750: if ($sheettype eq 'assesscalc') {
751: $pattern='A';
752: } else {
753: $pattern='[A-Z]';
754: }
755: foreach (keys(%f)) {
756: if ($_=~/template\_(\w)/) {
757: my $col=$1;
758: unless ($col=~/^$pattern/) {
759: foreach (keys(%f)) {
760: if ($_=~/A(\d+)/) {
761: my $trow=$1;
762: if ($trow) {
763: my $lb=$col.$trow;
764: $t{$lb}=$f{'template_'.$col};
765: $t{$lb}=~s/\#/$trow/g;
766: $t{$lb}=~s/\.\.+/\,/g;
767: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
768: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
769: }
770: }
771: }
772: }
773: }
774: }
775: foreach (keys(%f)) {
776: if (($f{$_}) && ($_!~/template\_/)) {
777: my $matches=($_=~/^$pattern(\d+)/);
778: if (($matches) && ($1)) {
779: unless ($f{$_}=~/^\!/) {
780: $t{$_}=$c{$_};
781: }
782: } else {
783: $t{$_}=$f{$_};
784: $t{$_}=~s/\.\.+/\,/g;
785: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
786: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
787: }
788: }
789: }
790: $t{'A0'}=$f{'A0'};
791: $t{'A0'}=~s/\.\.+/\,/g;
792: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
793: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
794: }
795:
796: sub calc {
797: %v=();
798: &sett();
799: my $notfinished=1;
800: my $depth=0;
801: while ($notfinished) {
802: $notfinished=0;
803: foreach (keys(%t)) {
804: my $old=$v{$_};
805: $v{$_}=eval($t{$_});
806: if ($@) {
807: %v=();
808: return $@;
809: }
810: if ($v{$_} ne $old) { $notfinished=1; }
811: }
812: $depth++;
813: if ($depth>100) {
814: %v=();
815: return 'Maximum calculation depth exceeded';
816: }
817: }
818: return '';
819: }
820:
821: sub templaterow {
822: my @cols=();
823: $cols[0]='<b><font size=+1>Template</font></b>';
824: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
825: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
826: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
827: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
828: my $fm=$f{'template_'.$_};
829: $fm=~s/[\'\"]/\&\#34;/g;
830: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
831: }
832: return @cols;
833: }
834:
835: sub outrowassess {
836: my $n=shift;
837: my @cols=();
838: if ($n) {
839: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
840: $cols[0]=$rl{$usy}.'<br>'.
841: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
842: ')"><option name="default">Default</option>';
843: foreach (@os) {
844: $cols[0].='<option name="'.$_.'"';
845: if ($ufn eq $_) {
846: $cols[0].=' selected';
847: }
848: $cols[0].='>'.$_.'</option>';
849: }
850: $cols[0].='</select>';
851: } else {
852: $cols[0]='<b><font size=+1>Export</font></b>';
853: }
854: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
855: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
856: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
857: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
858: my $fm=$f{$_.$n};
859: $fm=~s/[\'\"]/\&\#34;/g;
860: push(@cols,"'$_$n','$fm'".'___eq___'.$v{$_.$n});
861: }
862: return @cols;
863: }
864:
865: sub outrow {
866: my $n=shift;
867: my @cols=();
868: if ($n) {
869: $cols[0]=$rl{$f{'A'.$n}};
870: } else {
871: $cols[0]='<b><font size=+1>Export</font></b>';
872: }
873: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
874: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
875: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
876: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
877: my $fm=$f{$_.$n};
878: $fm=~s/[\'\"]/\&\#34;/g;
879: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
880: }
881: return @cols;
882: }
883:
884: sub exportrowa {
885: my @exportarray=();
886: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
887: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
888: $exportarray[$#exportarray+1]=$v{$_.'0'};
889: }
890: return @exportarray;
891: }
892:
893: # ------------------------------------------- End of "Inside of the safe space"
894: ENDDEFS
895: $safeeval->reval($code);
896: return $safeeval;
897: }
898:
899: # ------------------------------------------------ Add or change formula values
900:
901: sub setformulas {
902: my ($safeeval,%f)=@_;
903: %{$safeeval->varglob('f')}=%f;
904: }
905:
906: # ------------------------------------------------ Add or change formula values
907:
908: sub setconstants {
909: my ($safeeval,%c)=@_;
910: %{$safeeval->varglob('c')}=%c;
911: }
912:
913: # --------------------------------------------- Set names of other spreadsheets
914:
915: sub setothersheets {
916: my ($safeeval,@os)=@_;
917: @{$safeeval->varglob('os')}=@os;
918: }
919:
920: # ------------------------------------------------ Add or change formula values
921:
922: sub setrowlabels {
923: my ($safeeval,%rl)=@_;
924: %{$safeeval->varglob('rl')}=%rl;
925: }
926:
927: # ------------------------------------------------------- Calculate spreadsheet
928:
929: sub calcsheet {
930: my $safeeval=shift;
931: $safeeval->reval('&calc();');
932: }
933:
934: # ------------------------------------------------------------------ Get values
935:
936: sub getvalues {
937: my $safeeval=shift;
938: return $safeeval->reval('%v');
939: }
940:
941: # ---------------------------------------------------------------- Get formulas
942:
943: sub getformulas {
944: my $safeeval=shift;
945: return %{$safeeval->varglob('f')};
946: }
947:
948: # -------------------------------------------------------------------- Get type
949:
950: sub gettype {
951: my $safeeval=shift;
952: return $safeeval->reval('$sheettype');
953: }
954:
955: # ------------------------------------------------------------------ Set maxrow
956:
957: sub setmaxrow {
958: my ($safeeval,$row)=@_;
959: $safeeval->reval('$maxrow='.$row.';');
960: }
961:
962: # ------------------------------------------------------------------ Get maxrow
963:
964: sub getmaxrow {
965: my $safeeval=shift;
966: return $safeeval->reval('$maxrow');
967: }
968:
969: # ---------------------------------------------------------------- Set filename
970:
971: sub setfilename {
972: my ($safeeval,$fn)=@_;
973: $safeeval->reval('$filename="'.$fn.'";');
974: }
975:
976: # ---------------------------------------------------------------- Get filename
977:
978: sub getfilename {
979: my $safeeval=shift;
980: return $safeeval->reval('$filename');
981: }
982:
983: # --------------------------------------------------------------- Get course ID
984:
985: sub getcid {
986: my $safeeval=shift;
987: return $safeeval->reval('$cid');
988: }
989:
990: # --------------------------------------------------------- Get course filename
991:
992: sub getcfn {
993: my $safeeval=shift;
994: return $safeeval->reval('$cfn');
995: }
996:
997: # ----------------------------------------------------------- Get course number
998:
999: sub getcnum {
1000: my $safeeval=shift;
1001: return $safeeval->reval('$cnum');
1002: }
1003:
1004: # ------------------------------------------------------------- Get course home
1005:
1006: sub getchome {
1007: my $safeeval=shift;
1008: return $safeeval->reval('$chome');
1009: }
1010:
1011: # ----------------------------------------------------------- Get course domain
1012:
1013: sub getcdom {
1014: my $safeeval=shift;
1015: return $safeeval->reval('$cdom');
1016: }
1017:
1018: # ---------------------------------------------------------- Get course section
1019:
1020: sub getcsec {
1021: my $safeeval=shift;
1022: return $safeeval->reval('$csec');
1023: }
1024:
1025: # --------------------------------------------------------------- Get user name
1026:
1027: sub getuname {
1028: my $safeeval=shift;
1029: return $safeeval->reval('$uname');
1030: }
1031:
1032: # ------------------------------------------------------------- Get user domain
1033:
1034: sub getudom {
1035: my $safeeval=shift;
1036: return $safeeval->reval('$udom');
1037: }
1038:
1039: # --------------------------------------------------------------- Get user home
1040:
1041: sub getuhome {
1042: my $safeeval=shift;
1043: return $safeeval->reval('$uhome');
1044: }
1045:
1046: # -------------------------------------------------------------------- Get symb
1047:
1048: sub getusymb {
1049: my $safeeval=shift;
1050: return $safeeval->reval('$usymb');
1051: }
1052:
1053: # ------------------------------------------------------------- Export of A-row
1054:
1055: sub exportdata {
1056: my $safeeval=shift;
1057: return $safeeval->reval('&exportrowa()');
1058: }
1059:
1060:
1061: # ========================================================== End of Spreadsheet
1062: # =============================================================================
1063:
1064: #
1065: # Procedures for screen output
1066: #
1067: # --------------------------------------------- Produce output row n from sheet
1068:
1069: sub rown {
1070: my ($safeeval,$n)=@_;
1071: my $defaultbg;
1072: my $rowdata='';
1073: my $dataflag=0;
1074: unless ($n eq '-') {
1075: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1076: } else {
1077: $defaultbg='#E0FF';
1078: }
1079: unless ($ENV{'form.showcsv'}) {
1080: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1081: } else {
1082: $rowdata.="\n".'"'.$n.'"';
1083: }
1084: my $showf=0;
1085: my $proc;
1086: my $maxred;
1087: my $sheettype=&gettype($safeeval);
1088: if ($sheettype eq 'studentcalc') {
1089: $proc='&outrowassess';
1090: $maxred=26;
1091: } else {
1092: $proc='&outrow';
1093: }
1094: if ($sheettype eq 'assesscalc') {
1095: $maxred=1;
1096: } else {
1097: $maxred=26;
1098: }
1099: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1100: foreach ($safeeval->reval($proc.'('.$n.')')) {
1101: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1102: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1103: if ((($vl ne '') || ($vl eq '0')) &&
1104: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1105: if ($showf==0) { $vl=$_; }
1106: unless ($ENV{'form.showcsv'}) {
1107: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1108: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1109: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1110: if ($vl eq '') {
1111: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1112: }
1113: $rowdata.=
1114: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
1115: '</a></td>';
1116: } else {
1117: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1118: }
1119: } else {
1120: $rowdata.=',"'.$vl.'"';
1121: }
1122: $showf++;
1123: } # End of foreach($safeval...)
1124: if ($ENV{'form.showall'} || ($dataflag)) {
1125: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1126: } else {
1127: return '';
1128: }
1129: }
1130:
1131: # ------------------------------------------------------------- Print out sheet
1132:
1133: sub outsheet {
1134: my ($r,$safeeval)=@_;
1135: my $maxred;
1136: my $realm;
1137: if (&gettype($safeeval) eq 'assesscalc') {
1138: $maxred=1;
1139: $realm='Assessment';
1140: } elsif (&gettype($safeeval) eq 'studentcalc') {
1141: $maxred=26;
1142: $realm='User';
1143: } else {
1144: $maxred=26;
1145: $realm='Course';
1146: }
1147: my $maxyellow=52-$maxred;
1148: my $tabledata;
1149: unless ($ENV{'form.showcsv'}) {
1150: $tabledata=
1151: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1152: $realm.'</font></th>'.
1153: '<td bgcolor=#FFDDDD colspan='.$maxred.
1154: '><b><font size=+1>Import</font></b></td>'.
1155: '<td colspan='.$maxyellow.
1156: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1157: my $showf=0;
1158: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1159: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1160: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1161: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1162: $showf++;
1163: if ($showf<=$maxred) {
1164: $tabledata.='<td bgcolor="#FFDDDD">';
1165: } else {
1166: $tabledata.='<td>';
1167: }
1168: $tabledata.="<b><font size=+1>$_</font></b></td>";
1169: }
1170: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1171: } else { $tabledata='<pre>'; }
1172:
1173: $r->print($tabledata);
1174:
1175: my $row;
1176: my $maxrow=&getmaxrow($safeeval);
1177:
1178: my @sortby=();
1179: my @sortidx=();
1180: for ($row=1;$row<=$maxrow;$row++) {
1181: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1182: $sortidx[$row-1]=$row-1;
1183: }
1184: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1185:
1186: my $what='Student';
1187: if (&gettype($safeeval) eq 'assesscalc') {
1188: $what='Item';
1189: } elsif (&gettype($safeeval) eq 'studentcalc') {
1190: $what='Assessment';
1191: }
1192:
1193: my $n=0;
1194: for ($row=0;$row<$maxrow;$row++) {
1195: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1196: if ($thisrow) {
1197: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1198: $r->print("</table>\n<br>\n");
1199: $r->rflush();
1200: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1201: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1202: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1203: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1204: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1205: $r->print('<td>'.$_.'</td>');
1206: }
1207: $r->print('</tr>');
1208: }
1209: $n++;
1210: $r->print($thisrow);
1211: }
1212: }
1213: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1214: }
1215:
1216: #
1217: # ----------------------------------------------- Read list of available sheets
1218: #
1219: sub othersheets {
1220: my ($safeeval,$stype)=@_;
1221: #
1222: my $cnum=&getcnum($safeeval);
1223: my $cdom=&getcdom($safeeval);
1224: my $chome=&getchome($safeeval);
1225: #
1226: my @alternatives=();
1227: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1228: my ($tmp) = keys(%results);
1229: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1230: @alternatives = sort (keys(%results));
1231: }
1232: return @alternatives;
1233: }
1234:
1235:
1236: #
1237: # -------------------------------------- Parse a spreadsheet
1238: #
1239: sub parse_sheet {
1240: # $sheetxml is a scalar reference or a scalar
1241: my ($sheetxml) = @_;
1242: if (! ref($sheetxml)) {
1243: my $tmp = $sheetxml;
1244: $sheetxml = \$tmp;
1245: }
1246: my %f;
1247: my $parser=HTML::TokeParser->new($sheetxml);
1248: my $token;
1249: while ($token=$parser->get_token) {
1250: if ($token->[0] eq 'S') {
1251: if ($token->[1] eq 'field') {
1252: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1253: $parser->get_text('/field');
1254: }
1255: if ($token->[1] eq 'template') {
1256: $f{'template_'.$token->[2]->{'col'}}=
1257: $parser->get_text('/template');
1258: }
1259: }
1260: }
1261: return \%f;
1262: }
1263:
1264: #
1265: # -------------------------------------- Read spreadsheet formulas for a course
1266: #
1267:
1268: sub readsheet {
1269: my ($safeeval,$fn)=@_;
1270: my $stype=&gettype($safeeval);
1271: my $cnum=&getcnum($safeeval);
1272: my $cdom=&getcdom($safeeval);
1273: my $chome=&getchome($safeeval);
1274:
1275: if (! defined($fn)) {
1276: # There is no filename. Look for defaults in course and global, cache
1277: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1278: my %tmphash = &Apache::lonnet::get('environment',
1279: ['spreadsheet_default_'.$stype],
1280: $cdom,$cnum);
1281: my ($tmp) = keys(%tmphash);
1282: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1283: $fn = 'default_'.$stype;
1284: } else {
1285: $fn = $tmphash{'spreadsheet_default_'.$stype};
1286: }
1287: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1288: }
1289: }
1290:
1291: # ---------------------------------------------------------- fn now has a value
1292:
1293: &setfilename($safeeval,$fn);
1294:
1295: # ------------------------------------------------------ see if sheet is cached
1296: my $fstring='';
1297: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1298: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1299: } else {
1300:
1301: # ---------------------------------------------------- Not cached, need to read
1302:
1303: my %f=();
1304:
1305: if ($fn=~/^default\_/) {
1306: my $sheetxml='';
1307: my $fh;
1308: my $dfn=$fn;
1309: $dfn=~s/\_/\./g;
1310: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1311: $sheetxml=join('',<$fh>);
1312: } else {
1313: $sheetxml='<field row="0" col="A">"Error"</field>';
1314: }
1315: %f=%{&parse_sheet(\$sheetxml)};
1316: } elsif($fn=~/\/*\.spreadsheet$/) {
1317: my $sheetxml=&Apache::lonnet::getfile
1318: (&Apache::lonnet::filelocation('',$fn));
1319: if ($sheetxml == -1) {
1320: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1321: .$fn.'"</field>';
1322: }
1323: %f=%{&parse_sheet(\$sheetxml)};
1324: } else {
1325: my $sheet='';
1326: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1327: my ($tmp) = keys(%tmphash);
1328: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1329: foreach (keys(%tmphash)) {
1330: $f{$_}=$tmphash{$_};
1331: }
1332: }
1333: }
1334: # --------------------------------------------------------------- Cache and set
1335: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1336: &setformulas($safeeval,%f);
1337: }
1338: }
1339:
1340: # -------------------------------------------------------- Make new spreadsheet
1341:
1342: sub makenewsheet {
1343: my ($uname,$udom,$stype,$usymb)=@_;
1344: my $safeeval=initsheet($stype);
1345: $safeeval->reval(
1346: '$uname="'.$uname.
1347: '";$udom="'.$udom.
1348: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1349: '";$sheettype="'.$stype.
1350: '";$usymb="'.$usymb.
1351: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1352: $ENV{'request.course.id'}).
1353: '";$cid="'.$ENV{'request.course.id'}.
1354: '";$cfn="'.$ENV{'request.course.fn'}.
1355: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1356: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1357: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1358: return $safeeval;
1359: }
1360:
1361: # ------------------------------------------------------------ Save spreadsheet
1362:
1363: sub writesheet {
1364: my ($safeeval,$makedef)=@_;
1365: my $cid=&getcid($safeeval);
1366: if (&Apache::lonnet::allowed('opa',$cid)) {
1367: my %f=&getformulas($safeeval);
1368: my $stype=&gettype($safeeval);
1369: my $cnum=&getcnum($safeeval);
1370: my $cdom=&getcdom($safeeval);
1371: my $chome=&getchome($safeeval);
1372: my $fn=&getfilename($safeeval);
1373:
1374: # ------------------------------------------------------------- Cache new sheet
1375: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1376: # ----------------------------------------------------------------- Write sheet
1377: my $sheetdata='';
1378: foreach (keys(%f)) {
1379: unless ($f{$_} eq 'import') {
1380: $sheetdata.=&Apache::lonnet::escape($_).'='.
1381: &Apache::lonnet::escape($f{$_}).'&';
1382: }
1383: }
1384: $sheetdata=~s/\&$//;
1385: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1386: $sheetdata,$chome);
1387: if ($reply eq 'ok') {
1388: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1389: $stype.'_spreadsheets:'.
1390: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1391: $ENV{'user.domain'},
1392: $chome);
1393: if ($reply eq 'ok') {
1394: if ($makedef) {
1395: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1396: ':environment:spreadsheet_default_'.$stype.'='.
1397: &Apache::lonnet::escape($fn),
1398: $chome);
1399: } else {
1400: return $reply;
1401: }
1402: } else {
1403: return $reply;
1404: }
1405: } else {
1406: return $reply;
1407: }
1408: }
1409: return 'unauthorized';
1410: }
1411:
1412: # ----------------------------------------------- Make a temp copy of the sheet
1413: # "Modified workcopy" - interactive only
1414: #
1415:
1416: sub tmpwrite {
1417: my $safeeval=shift;
1418: my $fn=$ENV{'user.name'}.'_'.
1419: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1420: &getfilename($safeeval);
1421: $fn=~s/\W/\_/g;
1422: $fn=$tmpdir.$fn.'.tmp';
1423: my $fh;
1424: if ($fh=Apache::File->new('>'.$fn)) {
1425: print $fh join("\n",&getformulas($safeeval));
1426: }
1427: }
1428:
1429: # ---------------------------------------------------------- Read the temp copy
1430:
1431: sub tmpread {
1432: my ($safeeval,$nfield,$nform)=@_;
1433: my $fn=$ENV{'user.name'}.'_'.
1434: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1435: &getfilename($safeeval);
1436: $fn=~s/\W/\_/g;
1437: $fn=$tmpdir.$fn.'.tmp';
1438: my $fh;
1439: my %fo=();
1440: if ($fh=Apache::File->new($fn)) {
1441: my $name;
1442: while ($name=<$fh>) {
1443: chomp($name);
1444: my $value=<$fh>;
1445: chomp($value);
1446: $fo{$name}=$value;
1447: }
1448: }
1449: if ($nform eq 'changesheet') {
1450: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1451: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1452: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1453: }
1454: } else {
1455: if ($nfield) { $fo{$nfield}=$nform; }
1456: }
1457: &setformulas($safeeval,%fo);
1458: }
1459:
1460: # ================================================================== Parameters
1461: # -------------------------------------------- Figure out a cascading parameter
1462: #
1463: # For this function to work
1464: #
1465: # * parmhash needs to be tied
1466: # * courseopt and useropt need to be initialized for this user and course
1467: #
1468:
1469: sub parmval {
1470: my ($what,$safeeval)=@_;
1471: my $cid=&getcid($safeeval);
1472: my $csec=&getcsec($safeeval);
1473: my $uname=&getuname($safeeval);
1474: my $udom=&getudom($safeeval);
1475: my $symb=&getusymb($safeeval);
1476:
1477: unless ($symb) { return ''; }
1478: my $result='';
1479:
1480: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1481: # ----------------------------------------------------- Cascading lookup scheme
1482: my $rwhat=$what;
1483: $what=~s/^parameter\_//;
1484: $what=~s/\_([^\_]+)$/\.$1/;
1485:
1486: my $symbparm=$symb.'.'.$what;
1487: my $mapparm=$mapname.'___(all).'.$what;
1488: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1489:
1490: my $seclevel=
1491: $usercourseprefix.'.['.
1492: $csec.'].'.$what;
1493: my $seclevelr=
1494: $usercourseprefix.'.['.
1495: $csec.'].'.$symbparm;
1496: my $seclevelm=
1497: $usercourseprefix.'.['.
1498: $csec.'].'.$mapparm;
1499:
1500: my $courselevel=
1501: $usercourseprefix.'.'.$what;
1502: my $courselevelr=
1503: $usercourseprefix.'.'.$symbparm;
1504: my $courselevelm=
1505: $usercourseprefix.'.'.$mapparm;
1506:
1507: # ---------------------------------------------------------- fourth, check user
1508:
1509: if ($uname) {
1510:
1511: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1512:
1513: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1514:
1515: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1516:
1517: }
1518:
1519: # --------------------------------------------------------- third, check course
1520:
1521: if ($csec) {
1522:
1523: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1524:
1525: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1526:
1527: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1528:
1529: }
1530:
1531: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1532:
1533: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1534:
1535: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1536:
1537: # ----------------------------------------------------- second, check map parms
1538:
1539: my $thisparm=$parmhash{$symbparm};
1540: if ($thisparm) { return $thisparm; }
1541:
1542: # -------------------------------------------------------- first, check default
1543:
1544: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1545:
1546: }
1547:
1548: # ---------------------------------------------- Update rows for course listing
1549:
1550: sub updateclasssheet {
1551: my $safeeval=shift;
1552: my $cnum=&getcnum($safeeval);
1553: my $cdom=&getcdom($safeeval);
1554: my $cid=&getcid($safeeval);
1555: my $chome=&getchome($safeeval);
1556:
1557: # ---------------------------------------------- Read class list and row labels
1558:
1559: my $classlst=&Apache::lonnet::reply
1560: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1561: my %currentlist=();
1562: my $now=time;
1563: unless ($classlst=~/^error\:/) {
1564: foreach (split(/\&/,$classlst)) {
1565: my ($name,$value)=split(/\=/,$_);
1566: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1567: my $active=1;
1568: if (($end) && ($now>$end)) { $active=0; }
1569: if ($active) {
1570: my $rowlabel='';
1571: $name=&Apache::lonnet::unescape($name);
1572: my ($sname,$sdom)=split(/\:/,$name);
1573: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1574: if ($ssec==-1) {
1575: unless ($ENV{'form.showcsv'}) {
1576: $rowlabel='<font color=red>Data not available: '.$name.
1577: '</font>';
1578: } else {
1579: $rowlabel='ERROR","'.$name.
1580: '","Data not available","","","';
1581: }
1582: } else {
1583: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1584: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1585: ':environment:firstname&middlename&lastname&generation',
1586: &Apache::lonnet::homeserver($sname,$sdom));
1587: unless ($ENV{'form.showcsv'}) {
1588: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1589: '&udom='.$sdom.'">'.
1590: $ssec.' '.$reply{$sname}.'<br>';
1591: foreach ( split(/\&/,$reply)) {
1592: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1593: }
1594: $rowlabel.='</a>';
1595: } else {
1596: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1597: my $ncount=0;
1598: foreach (split(/\&/,$reply)) {
1599: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1600: $ncount++;
1601: }
1602: unless ($ncount==4) { $rowlabel.=',""'; }
1603: $rowlabel=~s/\"$//;
1604: }
1605: }
1606: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1607: }
1608: } # end of foreach (split(/\&/,$classlst))
1609: #
1610: # -------------------- Find discrepancies between the course row table and this
1611: #
1612: my %f=&getformulas($safeeval);
1613: my $changed=0;
1614:
1615: my $maxrow=0;
1616: my %existing=();
1617:
1618: # ----------------------------------------------------------- Now obsolete rows
1619: foreach (keys(%f)) {
1620: if ($_=~/^A(\d+)/) {
1621: $maxrow=($1>$maxrow)?$1:$maxrow;
1622: $existing{$f{$_}}=1;
1623: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1624: $f{$_}='!!! Obsolete';
1625: $changed=1;
1626: }
1627: }
1628: }
1629:
1630: # -------------------------------------------------------- New and unknown keys
1631:
1632: foreach (sort keys(%currentlist)) {
1633: unless ($existing{$_}) {
1634: $changed=1;
1635: $maxrow++;
1636: $f{'A'.$maxrow}=$_;
1637: }
1638: }
1639:
1640: if ($changed) { &setformulas($safeeval,%f); }
1641:
1642: &setmaxrow($safeeval,$maxrow);
1643: &setrowlabels($safeeval,%currentlist);
1644:
1645: } else {
1646: return 'Could not access course data';
1647: }
1648: }
1649:
1650: # ----------------------------------- Update rows for student and assess sheets
1651:
1652: sub updatestudentassesssheet {
1653: my $safeeval=shift;
1654: my %bighash;
1655: my $stype=&gettype($safeeval);
1656: my %current=();
1657: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1658: # -------------------------------------------------------------------- Tie hash
1659: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1660: &GDBM_READER,0640)) {
1661: # --------------------------------------------------------- Get all assessments
1662:
1663: my %allkeys=('timestamp' =>
1664: 'Timestamp of Last Transaction<br>timestamp',
1665: 'subnumber' =>
1666: 'Number of Submissions<br>subnumber',
1667: 'tutornumber' =>
1668: 'Number of Tutor Responses<br>tutornumber',
1669: 'totalpoints' =>
1670: 'Total Points Granted<br>totalpoints');
1671:
1672: my $adduserstr='';
1673: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1674: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1675: $adduserstr='&uname='.&getuname($safeeval).
1676: '&udom='.&getudom($safeeval);
1677: }
1678:
1679: my %allassess=('_feedback' =>
1680: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1681: '">Feedback</a>',
1682: '_evaluation' =>
1683: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1684: '">Evaluation</a>',
1685: '_tutoring' =>
1686: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1687: '">Tutoring</a>',
1688: '_discussion' =>
1689: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1690: '">Discussion</a>'
1691: );
1692:
1693: foreach (keys(%bighash)) {
1694: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1695: my $mapid=$1;
1696: my $resid=$2;
1697: my $id=$mapid.'.'.$resid;
1698: my $srcf=$bighash{$_};
1699: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1700: my $symb=
1701: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1702: '___'.$resid.'___'.
1703: &Apache::lonnet::declutter($srcf);
1704: $allassess{$symb}=
1705: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1706: $bighash{'title_'.$id}.'</a>';
1707: if ($stype eq 'assesscalc') {
1708: foreach (split(/\,/,
1709: &Apache::lonnet::metadata($srcf,'keys'))) {
1710: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1711: my $key=$_;
1712: my $display=
1713: &Apache::lonnet::metadata($srcf,$key.'.display');
1714: unless ($display) {
1715: $display.=
1716: &Apache::lonnet::metadata($srcf,$key.'.name');
1717: }
1718: $display.='<br>'.$key;
1719: $allkeys{$key}=$display;
1720: }
1721: } # end of foreach
1722: }
1723: }
1724: }
1725: } # end of foreach (keys(%bighash))
1726: untie(%bighash);
1727:
1728: #
1729: # %allkeys has a list of storage and parameter displays by unikey
1730: # %allassess has a list of all resource displays by symb
1731: #
1732:
1733: if ($stype eq 'assesscalc') {
1734: %current=%allkeys;
1735: } elsif ($stype eq 'studentcalc') {
1736: %current=%allassess;
1737: }
1738: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1739: join('___;___',%current);
1740: } else {
1741: return 'Could not access course data';
1742: }
1743: # ------------------------------------------------------ Get current from cache
1744: } else {
1745: %current=split(/\_\_\_\;\_\_\_/,
1746: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1747: }
1748: # -------------------- Find discrepancies between the course row table and this
1749: #
1750: my %f=&getformulas($safeeval);
1751: my $changed=0;
1752:
1753: my $maxrow=0;
1754: my %existing=();
1755:
1756: # ----------------------------------------------------------- Now obsolete rows
1757: foreach (keys(%f)) {
1758: if ($_=~/^A(\d+)/) {
1759: $maxrow=($1>$maxrow)?$1:$maxrow;
1760: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1761: $existing{$usy}=1;
1762: unless ((defined($current{$usy})) || (!$1)) {
1763: $f{$_}='!!! Obsolete';
1764: $changed=1;
1765: } elsif ($ufn) {
1766: $current{$usy}
1767: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1768: }
1769: }
1770: }
1771:
1772: # -------------------------------------------------------- New and unknown keys
1773:
1774: foreach (keys(%current)) {
1775: unless ($existing{$_}) {
1776: $changed=1;
1777: $maxrow++;
1778: $f{'A'.$maxrow}=$_;
1779: }
1780: }
1781:
1782: if ($changed) { &setformulas($safeeval,%f); }
1783:
1784: &setmaxrow($safeeval,$maxrow);
1785: &setrowlabels($safeeval,%current);
1786:
1787: undef %current;
1788: undef %existing;
1789: }
1790:
1791: # ------------------------------------------------ Load data for one assessment
1792:
1793: sub loadstudent {
1794: my $safeeval=shift;
1795: my %c=();
1796: my %f=&getformulas($safeeval);
1797: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1798: %cachedstores=();
1799: {
1800: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1801: &getuname($safeeval).':'.
1802: &getcid($safeeval),
1803: &getuhome($safeeval));
1804: unless ($reply=~/^error\:/) {
1805: foreach ( split(/\&/,$reply)) {
1806: my ($name,$value)=split(/\=/,$_);
1807: $cachedstores{&Apache::lonnet::unescape($name)}=
1808: &Apache::lonnet::unescape($value);
1809: }
1810: }
1811: }
1812: my @assessdata=();
1813: foreach (keys(%f)) {
1814: if ($_=~/^A(\d+)/) {
1815: my $row=$1;
1816: unless (($f{$_}=~/^\!/) || ($row==0)) {
1817: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1818: @assessdata=&exportsheet(&getuname($safeeval),
1819: &getudom($safeeval),
1820: 'assesscalc',$usy,$ufn);
1821: my $index=0;
1822: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1823: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1824: if ($assessdata[$index]) {
1825: my $col=$_;
1826: if ($assessdata[$index]=~/\D/) {
1827: $c{$col.$row}="'".$assessdata[$index]."'";
1828: } else {
1829: $c{$col.$row}=$assessdata[$index];
1830: }
1831: unless ($col eq 'A') {
1832: $f{$col.$row}='import';
1833: }
1834: }
1835: $index++;
1836: }
1837: }
1838: }
1839: }
1840: $cachedassess='';
1841: undef %cachedstores;
1842: &setformulas($safeeval,%f);
1843: &setconstants($safeeval,%c);
1844: }
1845:
1846: # --------------------------------------------------- Load data for one student
1847:
1848: sub loadcourse {
1849: my ($safeeval,$r)=@_;
1850: my %c=();
1851: my %f=&getformulas($safeeval);
1852: my $total=0;
1853: foreach (keys(%f)) {
1854: if ($_=~/^A(\d+)/) {
1855: unless ($f{$_}=~/^\!/) { $total++; }
1856: }
1857: }
1858: my $now=0;
1859: my $since=time;
1860: $r->print(<<ENDPOP);
1861: <script>
1862: popwin=open('','popwin','width=400,height=100');
1863: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1864: '<h3>Spreadsheet Calculation Progress</h3>'+
1865: '<form name=popremain>'+
1866: '<input type=text size=35 name=remaining value=Starting></form>'+
1867: '</body></html>');
1868: popwin.document.close();
1869: </script>
1870: ENDPOP
1871: $r->rflush();
1872: foreach (keys(%f)) {
1873: if ($_=~/^A(\d+)/) {
1874: my $row=$1;
1875: unless (($f{$_}=~/^\!/) || ($row==0)) {
1876: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1877: 'studentcalc');
1878: undef %userrdatas;
1879: $now++;
1880: $r->print('<script>popwin.document.popremain.remaining.value="'.
1881: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1882: ' secs remaining";</script>');
1883: $r->rflush();
1884:
1885: my $index=0;
1886: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1887: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1888: if ($studentdata[$index]) {
1889: my $col=$_;
1890: if ($studentdata[$index]=~/\D/) {
1891: $c{$col.$row}="'".$studentdata[$index]."'";
1892: } else {
1893: $c{$col.$row}=$studentdata[$index];
1894: }
1895: unless ($col eq 'A') {
1896: $f{$col.$row}='import';
1897: }
1898: }
1899: $index++;
1900: }
1901: }
1902: }
1903: }
1904: &setformulas($safeeval,%f);
1905: &setconstants($safeeval,%c);
1906: $r->print('<script>popwin.close()</script>');
1907: $r->rflush();
1908: }
1909:
1910: # ------------------------------------------------ Load data for one assessment
1911:
1912: sub loadassessment {
1913: my $safeeval=shift;
1914:
1915: my $uhome=&getuhome($safeeval);
1916: my $uname=&getuname($safeeval);
1917: my $udom=&getudom($safeeval);
1918: my $symb=&getusymb($safeeval);
1919: my $cid=&getcid($safeeval);
1920: my $cnum=&getcnum($safeeval);
1921: my $cdom=&getcdom($safeeval);
1922: my $chome=&getchome($safeeval);
1923:
1924: my $namespace;
1925: unless ($namespace=$cid) { return ''; }
1926:
1927: # ----------------------------------------------------------- Get stored values
1928:
1929: my %returnhash=();
1930:
1931: if ($cachedassess eq $uname.':'.$udom) {
1932: #
1933: # get data out of the dumped stores
1934: #
1935:
1936: my $version=$cachedstores{'version:'.$symb};
1937: my $scope;
1938: for ($scope=1;$scope<=$version;$scope++) {
1939: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1940: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1941: }
1942: }
1943:
1944: } else {
1945: #
1946: # restore individual
1947: #
1948:
1949: my $answer=&Apache::lonnet::reply(
1950: "restore:$udom:$uname:".
1951: &Apache::lonnet::escape($namespace).":".
1952: &Apache::lonnet::escape($symb),$uhome);
1953: foreach (split(/\&/,$answer)) {
1954: my ($name,$value)=split(/\=/,$_);
1955: $returnhash{&Apache::lonnet::unescape($name)}=
1956: &Apache::lonnet::unescape($value);
1957: }
1958: my $version;
1959: for ($version=1;$version<=$returnhash{'version'};$version++) {
1960: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1961: $returnhash{$_}=$returnhash{$version.':'.$_};
1962: }
1963: }
1964: }
1965: # ----------------------------- returnhash now has all stores for this resource
1966:
1967: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1968:
1969: my @oldkeys=keys %returnhash;
1970:
1971: foreach (@oldkeys) {
1972: my $name=$_;
1973: my $value=$returnhash{$_};
1974: delete $returnhash{$_};
1975: $name=~s/\_/\./g;
1976: $returnhash{$name}=$value;
1977: }
1978:
1979: # ---------------------------- initialize coursedata and userdata for this user
1980: undef %courseopt;
1981: undef %useropt;
1982:
1983: my $userprefix=$uname.'_'.$udom.'_';
1984:
1985: unless ($uhome eq 'no_host') {
1986: # -------------------------------------------------------------- Get coursedata
1987: unless
1988: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1989: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1990: ':resourcedata',$chome);
1991: if ($reply!~/^error\:/) {
1992: $courserdatas{$cid}=$reply;
1993: $courserdatas{$cid.'.last_cache'}=time;
1994: }
1995: }
1996: foreach (split(/\&/,$courserdatas{$cid})) {
1997: my ($name,$value)=split(/\=/,$_);
1998: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1999: &Apache::lonnet::unescape($value);
2000: }
2001: # --------------------------------------------------- Get userdata (if present)
2002: unless
2003: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2004: my $reply=
2005: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2006: if ($reply!~/^error\:/) {
2007: $userrdatas{$uname.'___'.$udom}=$reply;
2008: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2009: }
2010: }
2011: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2012: my ($name,$value)=split(/\=/,$_);
2013: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2014: &Apache::lonnet::unescape($value);
2015: }
2016: }
2017: # ----------------- now courseopt, useropt initialized for this user and course
2018: # (used by parmval)
2019:
2020: #
2021: # Load keys for this assessment only
2022: #
2023: my %thisassess=();
2024: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2025:
2026: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2027: $thisassess{$_}=1;
2028: }
2029: #
2030: # Load parameters
2031: #
2032: my %c=();
2033:
2034: if (tie(%parmhash,'GDBM_File',
2035: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
2036: my %f=&getformulas($safeeval);
2037: foreach (keys(%f)) {
2038: if ($_=~/^A/) {
2039: unless ($f{$_}=~/^\!/) {
2040: if ($f{$_}=~/^parameter/) {
2041: if ($thisassess{$f{$_}}) {
2042: my $val=&parmval($f{$_},$safeeval);
2043: $c{$_}=$val;
2044: $c{$f{$_}}=$val;
2045: }
2046: } else {
2047: my $key=$f{$_};
2048: my $ckey=$key;
2049: $key=~s/^stores\_/resource\./;
2050: $key=~s/\_/\./g;
2051: $c{$_}=$returnhash{$key};
2052: $c{$ckey}=$returnhash{$key};
2053: }
2054: }
2055: }
2056: }
2057: untie(%parmhash);
2058: }
2059: &setconstants($safeeval,%c);
2060: }
2061:
2062: # --------------------------------------------------------- Various form fields
2063:
2064: sub textfield {
2065: my ($title,$name,$value)=@_;
2066: return "\n<p><b>$title:</b><br>".
2067: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2068: }
2069:
2070: sub hiddenfield {
2071: my ($name,$value)=@_;
2072: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2073: }
2074:
2075: sub selectbox {
2076: my ($title,$name,$value,%options)=@_;
2077: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2078: foreach (sort keys(%options)) {
2079: $selout.='<option value="'.$_.'"';
2080: if ($_ eq $value) { $selout.=' selected'; }
2081: $selout.='>'.$options{$_}.'</option>';
2082: }
2083: return $selout.'</select>';
2084: }
2085:
2086: # =============================================== Update information in a sheet
2087: #
2088: # Add new users or assessments, etc.
2089: #
2090:
2091: sub updatesheet {
2092: my $safeeval=shift;
2093: my $stype=&gettype($safeeval);
2094: if ($stype eq 'classcalc') {
2095: return &updateclasssheet($safeeval);
2096: } else {
2097: return &updatestudentassesssheet($safeeval);
2098: }
2099: }
2100:
2101: # =================================================== Load the rows for a sheet
2102: #
2103: # Import the data for rows
2104: #
2105:
2106: sub loadrows {
2107: my ($safeeval,$r)=@_;
2108: my $stype=&gettype($safeeval);
2109: if ($stype eq 'classcalc') {
2110: &loadcourse($safeeval,$r);
2111: } elsif ($stype eq 'studentcalc') {
2112: &loadstudent($safeeval);
2113: } else {
2114: &loadassessment($safeeval);
2115: }
2116: }
2117:
2118: # ======================================================= Forced recalculation?
2119:
2120: sub checkthis {
2121: my ($keyname,$time)=@_;
2122: return ($time<$expiredates{$keyname});
2123: }
2124: sub forcedrecalc {
2125: my ($uname,$udom,$stype,$usymb)=@_;
2126: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2127: my $time=$oldsheets{$key.'.time'};
2128: if ($ENV{'form.forcerecalc'}) { return 1; }
2129: unless ($time) { return 1; }
2130: if ($stype eq 'assesscalc') {
2131: my $map=(split(/\_\_\_/,$usymb))[0];
2132: if (&checkthis('::assesscalc:',$time) ||
2133: &checkthis('::assesscalc:'.$map,$time) ||
2134: &checkthis('::assesscalc:'.$usymb,$time) ||
2135: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2136: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2137: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2138: return 1;
2139: }
2140: } else {
2141: if (&checkthis('::studentcalc:',$time) ||
2142: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2143: return 1;
2144: }
2145: }
2146: return 0;
2147: }
2148:
2149: # ============================================================== Export handler
2150: #
2151: # Non-interactive call from with program
2152: #
2153:
2154: sub exportsheet {
2155: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2156: my @exportarr=();
2157:
2158: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2159: $fn='default_'.$1;
2160: }
2161:
2162: #
2163: # Check if cached
2164: #
2165:
2166: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2167: my $found='';
2168:
2169: if ($oldsheets{$key}) {
2170: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2171: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2172: if ($name eq $fn) {
2173: $found=$value;
2174: }
2175: }
2176: }
2177:
2178: unless ($found) {
2179: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2180: if ($oldsheets{$key}) {
2181: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2182: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2183: if ($name eq $fn) {
2184: $found=$value;
2185: }
2186: }
2187: }
2188: }
2189: #
2190: # Check if still valid
2191: #
2192: if ($found) {
2193: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2194: $found='';
2195: }
2196: }
2197:
2198: if ($found) {
2199: #
2200: # Return what was cached
2201: #
2202: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2203:
2204: } else {
2205: #
2206: # Not cached
2207: #
2208:
2209: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2210: &readsheet($thissheet,$fn);
2211: &updatesheet($thissheet);
2212: &loadrows($thissheet);
2213: &calcsheet($thissheet);
2214: @exportarr=&exportdata($thissheet);
2215: #
2216: # Store now
2217: #
2218: my $cid=$ENV{'request.course.id'};
2219: my $current='';
2220: if ($stype eq 'studentcalc') {
2221: $current=&Apache::lonnet::reply('get:'.
2222: $ENV{'course.'.$cid.'.domain'}.':'.
2223: $ENV{'course.'.$cid.'.num'}.
2224: ':nohist_calculatedsheets:'.
2225: &Apache::lonnet::escape($key),
2226: $ENV{'course.'.$cid.'.home'});
2227: } else {
2228: $current=&Apache::lonnet::reply('get:'.
2229: &getudom($thissheet).':'.
2230: &getuname($thissheet).
2231: ':nohist_calculatedsheets_'.
2232: $ENV{'request.course.id'}.':'.
2233: &Apache::lonnet::escape($key),
2234: &getuhome($thissheet));
2235:
2236: }
2237: my %currentlystored=();
2238: unless ($current=~/^error\:/) {
2239: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2240: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2241: $currentlystored{$name}=$value;
2242: }
2243: }
2244: $currentlystored{$fn}=join('___;___',@exportarr);
2245:
2246: my $newstore='';
2247: foreach (keys(%currentlystored)) {
2248: if ($newstore) { $newstore.='___&___'; }
2249: $newstore.=$_.'___=___'.$currentlystored{$_};
2250: }
2251: my $now=time;
2252: if ($stype eq 'studentcalc') {
2253: &Apache::lonnet::reply('put:'.
2254: $ENV{'course.'.$cid.'.domain'}.':'.
2255: $ENV{'course.'.$cid.'.num'}.
2256: ':nohist_calculatedsheets:'.
2257: &Apache::lonnet::escape($key).'='.
2258: &Apache::lonnet::escape($newstore).'&'.
2259: &Apache::lonnet::escape($key).'.time='.$now,
2260: $ENV{'course.'.$cid.'.home'});
2261: } else {
2262: &Apache::lonnet::reply('put:'.
2263: &getudom($thissheet).':'.
2264: &getuname($thissheet).
2265: ':nohist_calculatedsheets_'.
2266: $ENV{'request.course.id'}.':'.
2267: &Apache::lonnet::escape($key).'='.
2268: &Apache::lonnet::escape($newstore).'&'.
2269: &Apache::lonnet::escape($key).'.time='.$now,
2270: &getuhome($thissheet));
2271: }
2272: }
2273: return @exportarr;
2274: }
2275: # ============================================================ Expiration Dates
2276: #
2277: # Load previously cached student spreadsheets for this course
2278: #
2279:
2280: sub expirationdates {
2281: undef %expiredates;
2282: my $cid=$ENV{'request.course.id'};
2283: my $reply=&Apache::lonnet::reply('dump:'.
2284: $ENV{'course.'.$cid.'.domain'}.':'.
2285: $ENV{'course.'.$cid.'.num'}.
2286: ':nohist_expirationdates',
2287: $ENV{'course.'.$cid.'.home'});
2288: unless ($reply=~/^error\:/) {
2289: foreach (split(/\&/,$reply)) {
2290: my ($name,$value)=split(/\=/,$_);
2291: $expiredates{&Apache::lonnet::unescape($name)}
2292: =&Apache::lonnet::unescape($value);
2293: }
2294: }
2295: }
2296:
2297: # ===================================================== Calculated sheets cache
2298: #
2299: # Load previously cached student spreadsheets for this course
2300: #
2301:
2302: sub cachedcsheets {
2303: my $cid=$ENV{'request.course.id'};
2304: my $reply=&Apache::lonnet::reply('dump:'.
2305: $ENV{'course.'.$cid.'.domain'}.':'.
2306: $ENV{'course.'.$cid.'.num'}.
2307: ':nohist_calculatedsheets',
2308: $ENV{'course.'.$cid.'.home'});
2309: unless ($reply=~/^error\:/) {
2310: foreach ( split(/\&/,$reply)) {
2311: my ($name,$value)=split(/\=/,$_);
2312: $oldsheets{&Apache::lonnet::unescape($name)}
2313: =&Apache::lonnet::unescape($value);
2314: }
2315: }
2316: }
2317:
2318: # ===================================================== Calculated sheets cache
2319: #
2320: # Load previously cached assessment spreadsheets for this student
2321: #
2322:
2323: sub cachedssheets {
2324: my ($sname,$sdom,$shome)=@_;
2325: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2326: my $cid=$ENV{'request.course.id'};
2327: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2328: ':nohist_calculatedsheets_'.
2329: $ENV{'request.course.id'},
2330: $shome);
2331: unless ($reply=~/^error\:/) {
2332: foreach ( split(/\&/,$reply)) {
2333: my ($name,$value)=split(/\=/,$_);
2334: $oldsheets{&Apache::lonnet::unescape($name)}
2335: =&Apache::lonnet::unescape($value);
2336: }
2337: }
2338: $loadedcaches{$sname.'_'.$sdom}=1;
2339: }
2340: }
2341:
2342: # ===================================================== Calculated sheets cache
2343: #
2344: # Load previously cached assessment spreadsheets for this student
2345: #
2346:
2347: # ================================================================ Main handler
2348: #
2349: # Interactive call to screen
2350: #
2351: #
2352:
2353:
2354: sub handler {
2355: my $r=shift;
2356:
2357: if ($r->header_only) {
2358: $r->content_type('text/html');
2359: $r->send_http_header;
2360: return OK;
2361: }
2362:
2363: # ---------------------------------------------------- Global directory configs
2364:
2365: $includedir=$r->dir_config('lonIncludes');
2366: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2367:
2368: # ----------------------------------------------------- Needs to be in a course
2369:
2370: if ($ENV{'request.course.fn'}) {
2371:
2372: # --------------------------- Get query string for limited number of parameters
2373:
2374: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
2375: my ($name, $value) = split(/=/,$_);
2376: $value =~ tr/+/ /;
2377: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2378: if (($name eq 'uname') || ($name eq 'udom') ||
2379: ($name eq 'usymb') || ($name eq 'ufn')) {
2380: unless ($ENV{'form.'.$name}) {
2381: $ENV{'form.'.$name}=$value;
2382: }
2383: }
2384: }
2385:
2386: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2387: $ENV{'form.ufn'}='default_'.$1;
2388: }
2389:
2390: # -------------------------------------- Interactive loading of specific sheet?
2391: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2392: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2393: }
2394: # ------------------------------------------- Nothing there? Must be login user
2395:
2396: my $aname;
2397: my $adom;
2398:
2399: unless ($ENV{'form.uname'}) {
2400: $aname=$ENV{'user.name'};
2401: $adom=$ENV{'user.domain'};
2402: } else {
2403: $aname=$ENV{'form.uname'};
2404: $adom=$ENV{'form.udom'};
2405: }
2406:
2407: # ------------------------------------------------------------------- Open page
2408:
2409: $r->content_type('text/html');
2410: $r->header_out('Cache-control','no-cache');
2411: $r->header_out('Pragma','no-cache');
2412: $r->send_http_header;
2413:
2414: # --------------------------------------------------------------- Screen output
2415:
2416: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2417: $r->print(<<ENDSCRIPT);
2418: <script language="JavaScript">
2419:
2420: function celledit(cn,cf) {
2421: var cnf=prompt(cn,cf);
2422: if (cnf!=null) {
2423: document.sheet.unewfield.value=cn;
2424: document.sheet.unewformula.value=cnf;
2425: document.sheet.submit();
2426: }
2427: }
2428:
2429: function changesheet(cn) {
2430: document.sheet.unewfield.value=cn;
2431: document.sheet.unewformula.value='changesheet';
2432: document.sheet.submit();
2433: }
2434:
2435: </script>
2436: ENDSCRIPT
2437: $r->print('</head><body bgcolor="#FFFFFF">'.
2438: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2439: '<h1>LON-CAPA Spreadsheet</h1>'.
2440: '<form action="'.$r->uri.'" name=sheet method=post>'.
2441: &hiddenfield('uname',$ENV{'form.uname'}).
2442: &hiddenfield('udom',$ENV{'form.udom'}).
2443: &hiddenfield('usymb',$ENV{'form.usymb'}).
2444: &hiddenfield('unewfield','').
2445: &hiddenfield('unewformula',''));
2446:
2447: # ---------------------- Make sure that this gets out, even if user hits "stop"
2448:
2449: $r->rflush();
2450:
2451: # ---------------------------------------------------------------- Full recalc?
2452:
2453:
2454: if ($ENV{'form.forcerecalc'}) {
2455: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2456: undef %spreadsheets;
2457: undef %courserdatas;
2458: undef %userrdatas;
2459: undef %defaultsheets;
2460: undef %updatedata;
2461: }
2462:
2463: # ---------------------------------------- Read new sheet or modified worksheet
2464:
2465: $r->uri=~/\/(\w+)$/;
2466:
2467: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2468:
2469: # ------------------------ If a new formula had been entered, go from work copy
2470:
2471: if ($ENV{'form.unewfield'}) {
2472: $r->print('<h2>Modified Workcopy</h2>');
2473: $ENV{'form.unewformula'}=~s/\'/\"/g;
2474: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2475: $ENV{'form.unewformula'}.'<p>');
2476: &setfilename($asheet,$ENV{'form.ufn'});
2477: &tmpread($asheet,
2478: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2479:
2480: } elsif ($ENV{'form.saveas'}) {
2481: &setfilename($asheet,$ENV{'form.ufn'});
2482: &tmpread($asheet);
2483: } else {
2484: &readsheet($asheet,$ENV{'form.ufn'});
2485: }
2486:
2487: # -------------------------------------------------- Print out user information
2488:
2489: unless (&gettype($asheet) eq 'classcalc') {
2490: $r->print('<p><b>User:</b> '.&getuname($asheet).
2491: '<br><b>Domain:</b> '.&getudom($asheet));
2492: if (&getcsec($asheet) eq '-1') {
2493: $r->print('<h3><font color=red>'.
2494: 'Not a student in this course</font></h3>');
2495: } else {
2496: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2497: }
2498: if ($ENV{'form.usymb'}) {
2499: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2500: }
2501: }
2502:
2503: # ---------------------------------------------------------------- Course title
2504:
2505: $r->print('<h1>'.
2506: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2507: '</h1><h3>'.localtime().'</h3>');
2508:
2509: # ---------------------------------------------------- See if user can see this
2510:
2511: if ((&gettype($asheet) eq 'classcalc') ||
2512: (&getuname($asheet) ne $ENV{'user.name'}) ||
2513: (&getudom($asheet) ne $ENV{'user.domain'})) {
2514: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2515: $r->print(
2516: '<h1>Access Permission Denied</h1></form></body></html>');
2517: return OK;
2518: }
2519: }
2520:
2521: # ---------------------------------------------------------- Additional options
2522:
2523: $r->print(
2524: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2525: );
2526: if (&gettype($asheet) eq 'assesscalc') {
2527: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2528: &getuname($asheet).
2529: '&udom='.&getudom($asheet).
2530: '">Level up: Student Sheet</a></font><p>');
2531: }
2532:
2533: if ((&gettype($asheet) eq 'studentcalc') &&
2534: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2535: $r->print (
2536: '<p><font size=+2><a href="/adm/classcalc">'.
2537: 'Level up: Course Sheet</a></font><p>');
2538: }
2539:
2540:
2541: # ----------------------------------------------------------------- Save dialog
2542:
2543:
2544: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2545: my $fname=$ENV{'form.ufn'};
2546: $fname=~s/\_[^\_]+$//;
2547: if ($fname eq 'default') { $fname='course_default'; }
2548: $r->print('<input type=submit name=saveas value="Save as ...">'.
2549: '<input type=text size=20 name=newfn value="'.$fname.
2550: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2551: }
2552:
2553: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2554:
2555: # ----------------------------------------------------------------- Load dialog
2556: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2557: $r->print('<p><input type=submit name=load value="Load ...">'.
2558: '<select name="loadthissheet">'.
2559: '<option name="default">Default</option>');
2560: foreach (&othersheets($asheet,&gettype($asheet))) {
2561: $r->print('<option name="'.$_.'"');
2562: if ($ENV{'form.ufn'} eq $_) {
2563: $r->print(' selected');
2564: }
2565: $r->print('>'.$_.'</option>');
2566: }
2567: $r->print('</select><p>');
2568: if (&gettype($asheet) eq 'studentcalc') {
2569: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2570: }
2571: }
2572:
2573: # --------------------------------------------------------------- Cached sheets
2574:
2575: &expirationdates();
2576:
2577: undef %oldsheets;
2578: undef %loadedcaches;
2579:
2580: if (&gettype($asheet) eq 'classcalc') {
2581: $r->print("Loading previously calculated student sheets ...<br>\n");
2582: $r->rflush();
2583: &cachedcsheets();
2584: } elsif (&gettype($asheet) eq 'studentcalc') {
2585: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2586: $r->rflush();
2587: &cachedssheets(&getuname($asheet),&getudom($asheet),
2588: &getuhome($asheet));
2589: }
2590:
2591: # ----------------------------------------------------- Update sheet, load rows
2592:
2593: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2594: $r->rflush();
2595:
2596: &updatesheet($asheet);
2597:
2598: $r->print("Updated rows, loading row data ...<br>\n");
2599: $r->rflush();
2600:
2601: &loadrows($asheet,$r);
2602:
2603: $r->print("Loaded row data, calculating sheet ...<br>\n");
2604: $r->rflush();
2605:
2606: my $calcoutput=&calcsheet($asheet);
2607: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2608:
2609: # ---------------------------------------------------- See if something to save
2610:
2611: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2612: my $fname='';
2613: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2614: $fname=~s/\W/\_/g;
2615: if ($fname eq 'default') { $fname='course_default'; }
2616: $fname.='_'.&gettype($asheet);
2617: &setfilename($asheet,$fname);
2618: $ENV{'form.ufn'}=$fname;
2619: $r->print('<p>Saving spreadsheet: '.
2620: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2621: }
2622: }
2623:
2624: # ------------------------------------------------ Write the modified worksheet
2625:
2626: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2627:
2628: &tmpwrite($asheet);
2629:
2630: if (&gettype($asheet) eq 'studentcalc') {
2631: $r->print('<br>Show rows with empty A column: ');
2632: } else {
2633: $r->print('<br>Show empty rows: ');
2634: }
2635:
2636: $r->print(&hiddenfield('userselhidden','true').
2637: '<input type=checkbox name=showall onClick="submit()"');
2638:
2639: if ($ENV{'form.showall'}) {
2640: $r->print(' checked');
2641: } else {
2642: unless ($ENV{'form.userselhidden'}) {
2643: unless
2644: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2645: $r->print(' checked');
2646: $ENV{'form.showall'}=1;
2647: }
2648: }
2649: }
2650: $r->print('>');
2651: if (&gettype($asheet) eq 'classcalc') {
2652: $r->print(
2653: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2654: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2655: $r->print('>');
2656: }
2657: # ------------------------------------------------------------- Print out sheet
2658:
2659: &outsheet($r,$asheet);
2660: $r->print('</form></body></html>');
2661:
2662: # ------------------------------------------------------------------------ Done
2663: } else {
2664: # ----------------------------- Not in a course, or not allowed to modify parms
2665: $ENV{'user.error.msg'}=
2666: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2667: return HTTP_NOT_ACCEPTABLE;
2668: }
2669: return OK;
2670:
2671: }
2672:
2673: 1;
2674: __END__
2675:
2676:
2677:
2678:
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