1: #
2: # $Id: lonspreadsheet.pm,v 1.84 2002/04/11 13:35:23 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: print "<pre>$sheetxml</pre>";
1320: if ($sheetxml == -1) {
1321: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1322: .$fn.'"</field>';
1323: }
1324: %f=%{&parse_sheet(\$sheetxml)};
1325: print "<pre>";
1326: foreach (sort( keys(%f))) {
1327: print "$_ = $f{$_}\n";
1328: }
1329: print "</pre>";
1330: } else {
1331: my $sheet='';
1332: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1333: my ($tmp) = keys(%tmphash);
1334: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1335: foreach (keys(%tmphash)) {
1336: $f{$_}=$tmphash{$_};
1337: }
1338: }
1339: }
1340: # --------------------------------------------------------------- Cache and set
1341: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1342: &setformulas($safeeval,%f);
1343: }
1344: }
1345:
1346: # -------------------------------------------------------- Make new spreadsheet
1347:
1348: sub makenewsheet {
1349: my ($uname,$udom,$stype,$usymb)=@_;
1350: my $safeeval=initsheet($stype);
1351: $safeeval->reval(
1352: '$uname="'.$uname.
1353: '";$udom="'.$udom.
1354: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1355: '";$sheettype="'.$stype.
1356: '";$usymb="'.$usymb.
1357: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1358: $ENV{'request.course.id'}).
1359: '";$cid="'.$ENV{'request.course.id'}.
1360: '";$cfn="'.$ENV{'request.course.fn'}.
1361: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1362: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1363: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1364: return $safeeval;
1365: }
1366:
1367: # ------------------------------------------------------------ Save spreadsheet
1368:
1369: sub writesheet {
1370: my ($safeeval,$makedef)=@_;
1371: my $cid=&getcid($safeeval);
1372: if (&Apache::lonnet::allowed('opa',$cid)) {
1373: my %f=&getformulas($safeeval);
1374: my $stype=&gettype($safeeval);
1375: my $cnum=&getcnum($safeeval);
1376: my $cdom=&getcdom($safeeval);
1377: my $chome=&getchome($safeeval);
1378: my $fn=&getfilename($safeeval);
1379:
1380: # ------------------------------------------------------------- Cache new sheet
1381: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1382: # ----------------------------------------------------------------- Write sheet
1383: my $sheetdata='';
1384: foreach (keys(%f)) {
1385: unless ($f{$_} eq 'import') {
1386: $sheetdata.=&Apache::lonnet::escape($_).'='.
1387: &Apache::lonnet::escape($f{$_}).'&';
1388: }
1389: }
1390: $sheetdata=~s/\&$//;
1391: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1392: $sheetdata,$chome);
1393: if ($reply eq 'ok') {
1394: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1395: $stype.'_spreadsheets:'.
1396: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1397: $ENV{'user.domain'},
1398: $chome);
1399: if ($reply eq 'ok') {
1400: if ($makedef) {
1401: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1402: ':environment:spreadsheet_default_'.$stype.'='.
1403: &Apache::lonnet::escape($fn),
1404: $chome);
1405: } else {
1406: return $reply;
1407: }
1408: } else {
1409: return $reply;
1410: }
1411: } else {
1412: return $reply;
1413: }
1414: }
1415: return 'unauthorized';
1416: }
1417:
1418: # ----------------------------------------------- Make a temp copy of the sheet
1419: # "Modified workcopy" - interactive only
1420: #
1421:
1422: sub tmpwrite {
1423: my $safeeval=shift;
1424: my $fn=$ENV{'user.name'}.'_'.
1425: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1426: &getfilename($safeeval);
1427: $fn=~s/\W/\_/g;
1428: $fn=$tmpdir.$fn.'.tmp';
1429: my $fh;
1430: if ($fh=Apache::File->new('>'.$fn)) {
1431: print $fh join("\n",&getformulas($safeeval));
1432: }
1433: }
1434:
1435: # ---------------------------------------------------------- Read the temp copy
1436:
1437: sub tmpread {
1438: my ($safeeval,$nfield,$nform)=@_;
1439: my $fn=$ENV{'user.name'}.'_'.
1440: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1441: &getfilename($safeeval);
1442: $fn=~s/\W/\_/g;
1443: $fn=$tmpdir.$fn.'.tmp';
1444: my $fh;
1445: my %fo=();
1446: if ($fh=Apache::File->new($fn)) {
1447: my $name;
1448: while ($name=<$fh>) {
1449: chomp($name);
1450: my $value=<$fh>;
1451: chomp($value);
1452: $fo{$name}=$value;
1453: }
1454: }
1455: if ($nform eq 'changesheet') {
1456: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1457: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1458: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1459: }
1460: } else {
1461: if ($nfield) { $fo{$nfield}=$nform; }
1462: }
1463: &setformulas($safeeval,%fo);
1464: }
1465:
1466: # ================================================================== Parameters
1467: # -------------------------------------------- Figure out a cascading parameter
1468: #
1469: # For this function to work
1470: #
1471: # * parmhash needs to be tied
1472: # * courseopt and useropt need to be initialized for this user and course
1473: #
1474:
1475: sub parmval {
1476: my ($what,$safeeval)=@_;
1477: my $cid=&getcid($safeeval);
1478: my $csec=&getcsec($safeeval);
1479: my $uname=&getuname($safeeval);
1480: my $udom=&getudom($safeeval);
1481: my $symb=&getusymb($safeeval);
1482:
1483: unless ($symb) { return ''; }
1484: my $result='';
1485:
1486: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1487: # ----------------------------------------------------- Cascading lookup scheme
1488: my $rwhat=$what;
1489: $what=~s/^parameter\_//;
1490: $what=~s/\_([^\_]+)$/\.$1/;
1491:
1492: my $symbparm=$symb.'.'.$what;
1493: my $mapparm=$mapname.'___(all).'.$what;
1494: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1495:
1496: my $seclevel=
1497: $usercourseprefix.'.['.
1498: $csec.'].'.$what;
1499: my $seclevelr=
1500: $usercourseprefix.'.['.
1501: $csec.'].'.$symbparm;
1502: my $seclevelm=
1503: $usercourseprefix.'.['.
1504: $csec.'].'.$mapparm;
1505:
1506: my $courselevel=
1507: $usercourseprefix.'.'.$what;
1508: my $courselevelr=
1509: $usercourseprefix.'.'.$symbparm;
1510: my $courselevelm=
1511: $usercourseprefix.'.'.$mapparm;
1512:
1513: # ---------------------------------------------------------- fourth, check user
1514:
1515: if ($uname) {
1516:
1517: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1518:
1519: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1520:
1521: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1522:
1523: }
1524:
1525: # --------------------------------------------------------- third, check course
1526:
1527: if ($csec) {
1528:
1529: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1530:
1531: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1532:
1533: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1534:
1535: }
1536:
1537: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1538:
1539: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1540:
1541: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1542:
1543: # ----------------------------------------------------- second, check map parms
1544:
1545: my $thisparm=$parmhash{$symbparm};
1546: if ($thisparm) { return $thisparm; }
1547:
1548: # -------------------------------------------------------- first, check default
1549:
1550: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1551:
1552: }
1553:
1554: # ---------------------------------------------- Update rows for course listing
1555:
1556: sub updateclasssheet {
1557: my $safeeval=shift;
1558: my $cnum=&getcnum($safeeval);
1559: my $cdom=&getcdom($safeeval);
1560: my $cid=&getcid($safeeval);
1561: my $chome=&getchome($safeeval);
1562:
1563: # ---------------------------------------------- Read class list and row labels
1564:
1565: my $classlst=&Apache::lonnet::reply
1566: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1567: my %currentlist=();
1568: my $now=time;
1569: unless ($classlst=~/^error\:/) {
1570: foreach (split(/\&/,$classlst)) {
1571: my ($name,$value)=split(/\=/,$_);
1572: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1573: my $active=1;
1574: if (($end) && ($now>$end)) { $active=0; }
1575: if ($active) {
1576: my $rowlabel='';
1577: $name=&Apache::lonnet::unescape($name);
1578: my ($sname,$sdom)=split(/\:/,$name);
1579: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1580: if ($ssec==-1) {
1581: unless ($ENV{'form.showcsv'}) {
1582: $rowlabel='<font color=red>Data not available: '.$name.
1583: '</font>';
1584: } else {
1585: $rowlabel='ERROR","'.$name.
1586: '","Data not available","","","';
1587: }
1588: } else {
1589: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1590: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1591: ':environment:firstname&middlename&lastname&generation',
1592: &Apache::lonnet::homeserver($sname,$sdom));
1593: unless ($ENV{'form.showcsv'}) {
1594: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1595: '&udom='.$sdom.'">'.
1596: $ssec.' '.$reply{$sname}.'<br>';
1597: foreach ( split(/\&/,$reply)) {
1598: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1599: }
1600: $rowlabel.='</a>';
1601: } else {
1602: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1603: my $ncount=0;
1604: foreach (split(/\&/,$reply)) {
1605: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1606: $ncount++;
1607: }
1608: unless ($ncount==4) { $rowlabel.=',""'; }
1609: $rowlabel=~s/\"$//;
1610: }
1611: }
1612: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1613: }
1614: } # end of foreach (split(/\&/,$classlst))
1615: #
1616: # -------------------- Find discrepancies between the course row table and this
1617: #
1618: my %f=&getformulas($safeeval);
1619: my $changed=0;
1620:
1621: my $maxrow=0;
1622: my %existing=();
1623:
1624: # ----------------------------------------------------------- Now obsolete rows
1625: foreach (keys(%f)) {
1626: if ($_=~/^A(\d+)/) {
1627: $maxrow=($1>$maxrow)?$1:$maxrow;
1628: $existing{$f{$_}}=1;
1629: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1630: $f{$_}='!!! Obsolete';
1631: $changed=1;
1632: }
1633: }
1634: }
1635:
1636: # -------------------------------------------------------- New and unknown keys
1637:
1638: foreach (sort keys(%currentlist)) {
1639: unless ($existing{$_}) {
1640: $changed=1;
1641: $maxrow++;
1642: $f{'A'.$maxrow}=$_;
1643: }
1644: }
1645:
1646: if ($changed) { &setformulas($safeeval,%f); }
1647:
1648: &setmaxrow($safeeval,$maxrow);
1649: &setrowlabels($safeeval,%currentlist);
1650:
1651: } else {
1652: return 'Could not access course data';
1653: }
1654: }
1655:
1656: # ----------------------------------- Update rows for student and assess sheets
1657:
1658: sub updatestudentassesssheet {
1659: my $safeeval=shift;
1660: my %bighash;
1661: my $stype=&gettype($safeeval);
1662: my %current=();
1663: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1664: # -------------------------------------------------------------------- Tie hash
1665: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1666: &GDBM_READER,0640)) {
1667: # --------------------------------------------------------- Get all assessments
1668:
1669: my %allkeys=('timestamp' =>
1670: 'Timestamp of Last Transaction<br>timestamp',
1671: 'subnumber' =>
1672: 'Number of Submissions<br>subnumber',
1673: 'tutornumber' =>
1674: 'Number of Tutor Responses<br>tutornumber',
1675: 'totalpoints' =>
1676: 'Total Points Granted<br>totalpoints');
1677:
1678: my $adduserstr='';
1679: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1680: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1681: $adduserstr='&uname='.&getuname($safeeval).
1682: '&udom='.&getudom($safeeval);
1683: }
1684:
1685: my %allassess=('_feedback' =>
1686: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1687: '">Feedback</a>',
1688: '_evaluation' =>
1689: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1690: '">Evaluation</a>',
1691: '_tutoring' =>
1692: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1693: '">Tutoring</a>',
1694: '_discussion' =>
1695: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1696: '">Discussion</a>'
1697: );
1698:
1699: foreach (keys(%bighash)) {
1700: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1701: my $mapid=$1;
1702: my $resid=$2;
1703: my $id=$mapid.'.'.$resid;
1704: my $srcf=$bighash{$_};
1705: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1706: my $symb=
1707: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1708: '___'.$resid.'___'.
1709: &Apache::lonnet::declutter($srcf);
1710: $allassess{$symb}=
1711: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1712: $bighash{'title_'.$id}.'</a>';
1713: if ($stype eq 'assesscalc') {
1714: foreach (split(/\,/,
1715: &Apache::lonnet::metadata($srcf,'keys'))) {
1716: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1717: my $key=$_;
1718: my $display=
1719: &Apache::lonnet::metadata($srcf,$key.'.display');
1720: unless ($display) {
1721: $display.=
1722: &Apache::lonnet::metadata($srcf,$key.'.name');
1723: }
1724: $display.='<br>'.$key;
1725: $allkeys{$key}=$display;
1726: }
1727: } # end of foreach
1728: }
1729: }
1730: }
1731: } # end of foreach (keys(%bighash))
1732: untie(%bighash);
1733:
1734: #
1735: # %allkeys has a list of storage and parameter displays by unikey
1736: # %allassess has a list of all resource displays by symb
1737: #
1738:
1739: if ($stype eq 'assesscalc') {
1740: %current=%allkeys;
1741: } elsif ($stype eq 'studentcalc') {
1742: %current=%allassess;
1743: }
1744: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1745: join('___;___',%current);
1746: } else {
1747: return 'Could not access course data';
1748: }
1749: # ------------------------------------------------------ Get current from cache
1750: } else {
1751: %current=split(/\_\_\_\;\_\_\_/,
1752: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1753: }
1754: # -------------------- Find discrepancies between the course row table and this
1755: #
1756: my %f=&getformulas($safeeval);
1757: my $changed=0;
1758:
1759: my $maxrow=0;
1760: my %existing=();
1761:
1762: # ----------------------------------------------------------- Now obsolete rows
1763: foreach (keys(%f)) {
1764: if ($_=~/^A(\d+)/) {
1765: $maxrow=($1>$maxrow)?$1:$maxrow;
1766: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1767: $existing{$usy}=1;
1768: unless ((defined($current{$usy})) || (!$1)) {
1769: $f{$_}='!!! Obsolete';
1770: $changed=1;
1771: } elsif ($ufn) {
1772: $current{$usy}
1773: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1774: }
1775: }
1776: }
1777:
1778: # -------------------------------------------------------- New and unknown keys
1779:
1780: foreach (keys(%current)) {
1781: unless ($existing{$_}) {
1782: $changed=1;
1783: $maxrow++;
1784: $f{'A'.$maxrow}=$_;
1785: }
1786: }
1787:
1788: if ($changed) { &setformulas($safeeval,%f); }
1789:
1790: &setmaxrow($safeeval,$maxrow);
1791: &setrowlabels($safeeval,%current);
1792:
1793: undef %current;
1794: undef %existing;
1795: }
1796:
1797: # ------------------------------------------------ Load data for one assessment
1798:
1799: sub loadstudent {
1800: my $safeeval=shift;
1801: my %c=();
1802: my %f=&getformulas($safeeval);
1803: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1804: %cachedstores=();
1805: {
1806: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1807: &getuname($safeeval).':'.
1808: &getcid($safeeval),
1809: &getuhome($safeeval));
1810: unless ($reply=~/^error\:/) {
1811: foreach ( split(/\&/,$reply)) {
1812: my ($name,$value)=split(/\=/,$_);
1813: $cachedstores{&Apache::lonnet::unescape($name)}=
1814: &Apache::lonnet::unescape($value);
1815: }
1816: }
1817: }
1818: my @assessdata=();
1819: foreach (keys(%f)) {
1820: if ($_=~/^A(\d+)/) {
1821: my $row=$1;
1822: unless (($f{$_}=~/^\!/) || ($row==0)) {
1823: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1824: @assessdata=&exportsheet(&getuname($safeeval),
1825: &getudom($safeeval),
1826: 'assesscalc',$usy,$ufn);
1827: my $index=0;
1828: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1829: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1830: if ($assessdata[$index]) {
1831: my $col=$_;
1832: if ($assessdata[$index]=~/\D/) {
1833: $c{$col.$row}="'".$assessdata[$index]."'";
1834: } else {
1835: $c{$col.$row}=$assessdata[$index];
1836: }
1837: unless ($col eq 'A') {
1838: $f{$col.$row}='import';
1839: }
1840: }
1841: $index++;
1842: }
1843: }
1844: }
1845: }
1846: $cachedassess='';
1847: undef %cachedstores;
1848: &setformulas($safeeval,%f);
1849: &setconstants($safeeval,%c);
1850: }
1851:
1852: # --------------------------------------------------- Load data for one student
1853:
1854: sub loadcourse {
1855: my ($safeeval,$r)=@_;
1856: my %c=();
1857: my %f=&getformulas($safeeval);
1858: my $total=0;
1859: foreach (keys(%f)) {
1860: if ($_=~/^A(\d+)/) {
1861: unless ($f{$_}=~/^\!/) { $total++; }
1862: }
1863: }
1864: my $now=0;
1865: my $since=time;
1866: $r->print(<<ENDPOP);
1867: <script>
1868: popwin=open('','popwin','width=400,height=100');
1869: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1870: '<h3>Spreadsheet Calculation Progress</h3>'+
1871: '<form name=popremain>'+
1872: '<input type=text size=35 name=remaining value=Starting></form>'+
1873: '</body></html>');
1874: popwin.document.close();
1875: </script>
1876: ENDPOP
1877: $r->rflush();
1878: foreach (keys(%f)) {
1879: if ($_=~/^A(\d+)/) {
1880: my $row=$1;
1881: unless (($f{$_}=~/^\!/) || ($row==0)) {
1882: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1883: 'studentcalc');
1884: undef %userrdatas;
1885: $now++;
1886: $r->print('<script>popwin.document.popremain.remaining.value="'.
1887: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1888: ' secs remaining";</script>');
1889: $r->rflush();
1890:
1891: my $index=0;
1892: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1893: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1894: if ($studentdata[$index]) {
1895: my $col=$_;
1896: if ($studentdata[$index]=~/\D/) {
1897: $c{$col.$row}="'".$studentdata[$index]."'";
1898: } else {
1899: $c{$col.$row}=$studentdata[$index];
1900: }
1901: unless ($col eq 'A') {
1902: $f{$col.$row}='import';
1903: }
1904: }
1905: $index++;
1906: }
1907: }
1908: }
1909: }
1910: &setformulas($safeeval,%f);
1911: &setconstants($safeeval,%c);
1912: $r->print('<script>popwin.close()</script>');
1913: $r->rflush();
1914: }
1915:
1916: # ------------------------------------------------ Load data for one assessment
1917:
1918: sub loadassessment {
1919: my $safeeval=shift;
1920:
1921: my $uhome=&getuhome($safeeval);
1922: my $uname=&getuname($safeeval);
1923: my $udom=&getudom($safeeval);
1924: my $symb=&getusymb($safeeval);
1925: my $cid=&getcid($safeeval);
1926: my $cnum=&getcnum($safeeval);
1927: my $cdom=&getcdom($safeeval);
1928: my $chome=&getchome($safeeval);
1929:
1930: my $namespace;
1931: unless ($namespace=$cid) { return ''; }
1932:
1933: # ----------------------------------------------------------- Get stored values
1934:
1935: my %returnhash=();
1936:
1937: if ($cachedassess eq $uname.':'.$udom) {
1938: #
1939: # get data out of the dumped stores
1940: #
1941:
1942: my $version=$cachedstores{'version:'.$symb};
1943: my $scope;
1944: for ($scope=1;$scope<=$version;$scope++) {
1945: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1946: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1947: }
1948: }
1949:
1950: } else {
1951: #
1952: # restore individual
1953: #
1954:
1955: my $answer=&Apache::lonnet::reply(
1956: "restore:$udom:$uname:".
1957: &Apache::lonnet::escape($namespace).":".
1958: &Apache::lonnet::escape($symb),$uhome);
1959: foreach (split(/\&/,$answer)) {
1960: my ($name,$value)=split(/\=/,$_);
1961: $returnhash{&Apache::lonnet::unescape($name)}=
1962: &Apache::lonnet::unescape($value);
1963: }
1964: my $version;
1965: for ($version=1;$version<=$returnhash{'version'};$version++) {
1966: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1967: $returnhash{$_}=$returnhash{$version.':'.$_};
1968: }
1969: }
1970: }
1971: # ----------------------------- returnhash now has all stores for this resource
1972:
1973: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1974:
1975: my @oldkeys=keys %returnhash;
1976:
1977: foreach (@oldkeys) {
1978: my $name=$_;
1979: my $value=$returnhash{$_};
1980: delete $returnhash{$_};
1981: $name=~s/\_/\./g;
1982: $returnhash{$name}=$value;
1983: }
1984:
1985: # ---------------------------- initialize coursedata and userdata for this user
1986: undef %courseopt;
1987: undef %useropt;
1988:
1989: my $userprefix=$uname.'_'.$udom.'_';
1990:
1991: unless ($uhome eq 'no_host') {
1992: # -------------------------------------------------------------- Get coursedata
1993: unless
1994: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1995: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1996: ':resourcedata',$chome);
1997: if ($reply!~/^error\:/) {
1998: $courserdatas{$cid}=$reply;
1999: $courserdatas{$cid.'.last_cache'}=time;
2000: }
2001: }
2002: foreach (split(/\&/,$courserdatas{$cid})) {
2003: my ($name,$value)=split(/\=/,$_);
2004: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2005: &Apache::lonnet::unescape($value);
2006: }
2007: # --------------------------------------------------- Get userdata (if present)
2008: unless
2009: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2010: my $reply=
2011: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2012: if ($reply!~/^error\:/) {
2013: $userrdatas{$uname.'___'.$udom}=$reply;
2014: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2015: }
2016: }
2017: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2018: my ($name,$value)=split(/\=/,$_);
2019: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2020: &Apache::lonnet::unescape($value);
2021: }
2022: }
2023: # ----------------- now courseopt, useropt initialized for this user and course
2024: # (used by parmval)
2025:
2026: #
2027: # Load keys for this assessment only
2028: #
2029: my %thisassess=();
2030: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2031:
2032: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2033: $thisassess{$_}=1;
2034: }
2035: #
2036: # Load parameters
2037: #
2038: my %c=();
2039:
2040: if (tie(%parmhash,'GDBM_File',
2041: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
2042: my %f=&getformulas($safeeval);
2043: foreach (keys(%f)) {
2044: if ($_=~/^A/) {
2045: unless ($f{$_}=~/^\!/) {
2046: if ($f{$_}=~/^parameter/) {
2047: if ($thisassess{$f{$_}}) {
2048: my $val=&parmval($f{$_},$safeeval);
2049: $c{$_}=$val;
2050: $c{$f{$_}}=$val;
2051: }
2052: } else {
2053: my $key=$f{$_};
2054: my $ckey=$key;
2055: $key=~s/^stores\_/resource\./;
2056: $key=~s/\_/\./g;
2057: $c{$_}=$returnhash{$key};
2058: $c{$ckey}=$returnhash{$key};
2059: }
2060: }
2061: }
2062: }
2063: untie(%parmhash);
2064: }
2065: &setconstants($safeeval,%c);
2066: }
2067:
2068: # --------------------------------------------------------- Various form fields
2069:
2070: sub textfield {
2071: my ($title,$name,$value)=@_;
2072: return "\n<p><b>$title:</b><br>".
2073: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2074: }
2075:
2076: sub hiddenfield {
2077: my ($name,$value)=@_;
2078: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2079: }
2080:
2081: sub selectbox {
2082: my ($title,$name,$value,%options)=@_;
2083: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2084: foreach (sort keys(%options)) {
2085: $selout.='<option value="'.$_.'"';
2086: if ($_ eq $value) { $selout.=' selected'; }
2087: $selout.='>'.$options{$_}.'</option>';
2088: }
2089: return $selout.'</select>';
2090: }
2091:
2092: # =============================================== Update information in a sheet
2093: #
2094: # Add new users or assessments, etc.
2095: #
2096:
2097: sub updatesheet {
2098: my $safeeval=shift;
2099: my $stype=&gettype($safeeval);
2100: if ($stype eq 'classcalc') {
2101: return &updateclasssheet($safeeval);
2102: } else {
2103: return &updatestudentassesssheet($safeeval);
2104: }
2105: }
2106:
2107: # =================================================== Load the rows for a sheet
2108: #
2109: # Import the data for rows
2110: #
2111:
2112: sub loadrows {
2113: my ($safeeval,$r)=@_;
2114: my $stype=&gettype($safeeval);
2115: if ($stype eq 'classcalc') {
2116: &loadcourse($safeeval,$r);
2117: } elsif ($stype eq 'studentcalc') {
2118: &loadstudent($safeeval);
2119: } else {
2120: &loadassessment($safeeval);
2121: }
2122: }
2123:
2124: # ======================================================= Forced recalculation?
2125:
2126: sub checkthis {
2127: my ($keyname,$time)=@_;
2128: return ($time<$expiredates{$keyname});
2129: }
2130: sub forcedrecalc {
2131: my ($uname,$udom,$stype,$usymb)=@_;
2132: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2133: my $time=$oldsheets{$key.'.time'};
2134: if ($ENV{'form.forcerecalc'}) { return 1; }
2135: unless ($time) { return 1; }
2136: if ($stype eq 'assesscalc') {
2137: my $map=(split(/\_\_\_/,$usymb))[0];
2138: if (&checkthis('::assesscalc:',$time) ||
2139: &checkthis('::assesscalc:'.$map,$time) ||
2140: &checkthis('::assesscalc:'.$usymb,$time) ||
2141: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2142: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2143: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2144: return 1;
2145: }
2146: } else {
2147: if (&checkthis('::studentcalc:',$time) ||
2148: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2149: return 1;
2150: }
2151: }
2152: return 0;
2153: }
2154:
2155: # ============================================================== Export handler
2156: #
2157: # Non-interactive call from with program
2158: #
2159:
2160: sub exportsheet {
2161: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2162: my @exportarr=();
2163:
2164: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2165: $fn='default_'.$1;
2166: }
2167:
2168: #
2169: # Check if cached
2170: #
2171:
2172: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2173: my $found='';
2174:
2175: if ($oldsheets{$key}) {
2176: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2177: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2178: if ($name eq $fn) {
2179: $found=$value;
2180: }
2181: }
2182: }
2183:
2184: unless ($found) {
2185: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2186: if ($oldsheets{$key}) {
2187: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2188: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2189: if ($name eq $fn) {
2190: $found=$value;
2191: }
2192: }
2193: }
2194: }
2195: #
2196: # Check if still valid
2197: #
2198: if ($found) {
2199: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2200: $found='';
2201: }
2202: }
2203:
2204: if ($found) {
2205: #
2206: # Return what was cached
2207: #
2208: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2209:
2210: } else {
2211: #
2212: # Not cached
2213: #
2214:
2215: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2216: &readsheet($thissheet,$fn);
2217: &updatesheet($thissheet);
2218: &loadrows($thissheet);
2219: &calcsheet($thissheet);
2220: @exportarr=&exportdata($thissheet);
2221: #
2222: # Store now
2223: #
2224: my $cid=$ENV{'request.course.id'};
2225: my $current='';
2226: if ($stype eq 'studentcalc') {
2227: $current=&Apache::lonnet::reply('get:'.
2228: $ENV{'course.'.$cid.'.domain'}.':'.
2229: $ENV{'course.'.$cid.'.num'}.
2230: ':nohist_calculatedsheets:'.
2231: &Apache::lonnet::escape($key),
2232: $ENV{'course.'.$cid.'.home'});
2233: } else {
2234: $current=&Apache::lonnet::reply('get:'.
2235: &getudom($thissheet).':'.
2236: &getuname($thissheet).
2237: ':nohist_calculatedsheets_'.
2238: $ENV{'request.course.id'}.':'.
2239: &Apache::lonnet::escape($key),
2240: &getuhome($thissheet));
2241:
2242: }
2243: my %currentlystored=();
2244: unless ($current=~/^error\:/) {
2245: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2246: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2247: $currentlystored{$name}=$value;
2248: }
2249: }
2250: $currentlystored{$fn}=join('___;___',@exportarr);
2251:
2252: my $newstore='';
2253: foreach (keys(%currentlystored)) {
2254: if ($newstore) { $newstore.='___&___'; }
2255: $newstore.=$_.'___=___'.$currentlystored{$_};
2256: }
2257: my $now=time;
2258: if ($stype eq 'studentcalc') {
2259: &Apache::lonnet::reply('put:'.
2260: $ENV{'course.'.$cid.'.domain'}.':'.
2261: $ENV{'course.'.$cid.'.num'}.
2262: ':nohist_calculatedsheets:'.
2263: &Apache::lonnet::escape($key).'='.
2264: &Apache::lonnet::escape($newstore).'&'.
2265: &Apache::lonnet::escape($key).'.time='.$now,
2266: $ENV{'course.'.$cid.'.home'});
2267: } else {
2268: &Apache::lonnet::reply('put:'.
2269: &getudom($thissheet).':'.
2270: &getuname($thissheet).
2271: ':nohist_calculatedsheets_'.
2272: $ENV{'request.course.id'}.':'.
2273: &Apache::lonnet::escape($key).'='.
2274: &Apache::lonnet::escape($newstore).'&'.
2275: &Apache::lonnet::escape($key).'.time='.$now,
2276: &getuhome($thissheet));
2277: }
2278: }
2279: return @exportarr;
2280: }
2281: # ============================================================ Expiration Dates
2282: #
2283: # Load previously cached student spreadsheets for this course
2284: #
2285:
2286: sub expirationdates {
2287: undef %expiredates;
2288: my $cid=$ENV{'request.course.id'};
2289: my $reply=&Apache::lonnet::reply('dump:'.
2290: $ENV{'course.'.$cid.'.domain'}.':'.
2291: $ENV{'course.'.$cid.'.num'}.
2292: ':nohist_expirationdates',
2293: $ENV{'course.'.$cid.'.home'});
2294: unless ($reply=~/^error\:/) {
2295: foreach (split(/\&/,$reply)) {
2296: my ($name,$value)=split(/\=/,$_);
2297: $expiredates{&Apache::lonnet::unescape($name)}
2298: =&Apache::lonnet::unescape($value);
2299: }
2300: }
2301: }
2302:
2303: # ===================================================== Calculated sheets cache
2304: #
2305: # Load previously cached student spreadsheets for this course
2306: #
2307:
2308: sub cachedcsheets {
2309: my $cid=$ENV{'request.course.id'};
2310: my $reply=&Apache::lonnet::reply('dump:'.
2311: $ENV{'course.'.$cid.'.domain'}.':'.
2312: $ENV{'course.'.$cid.'.num'}.
2313: ':nohist_calculatedsheets',
2314: $ENV{'course.'.$cid.'.home'});
2315: unless ($reply=~/^error\:/) {
2316: foreach ( split(/\&/,$reply)) {
2317: my ($name,$value)=split(/\=/,$_);
2318: $oldsheets{&Apache::lonnet::unescape($name)}
2319: =&Apache::lonnet::unescape($value);
2320: }
2321: }
2322: }
2323:
2324: # ===================================================== Calculated sheets cache
2325: #
2326: # Load previously cached assessment spreadsheets for this student
2327: #
2328:
2329: sub cachedssheets {
2330: my ($sname,$sdom,$shome)=@_;
2331: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2332: my $cid=$ENV{'request.course.id'};
2333: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2334: ':nohist_calculatedsheets_'.
2335: $ENV{'request.course.id'},
2336: $shome);
2337: unless ($reply=~/^error\:/) {
2338: foreach ( split(/\&/,$reply)) {
2339: my ($name,$value)=split(/\=/,$_);
2340: $oldsheets{&Apache::lonnet::unescape($name)}
2341: =&Apache::lonnet::unescape($value);
2342: }
2343: }
2344: $loadedcaches{$sname.'_'.$sdom}=1;
2345: }
2346: }
2347:
2348: # ===================================================== Calculated sheets cache
2349: #
2350: # Load previously cached assessment spreadsheets for this student
2351: #
2352:
2353: # ================================================================ Main handler
2354: #
2355: # Interactive call to screen
2356: #
2357: #
2358:
2359:
2360: sub handler {
2361: my $r=shift;
2362:
2363: if ($r->header_only) {
2364: $r->content_type('text/html');
2365: $r->send_http_header;
2366: return OK;
2367: }
2368:
2369: # ---------------------------------------------------- Global directory configs
2370:
2371: $includedir=$r->dir_config('lonIncludes');
2372: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2373:
2374: # ----------------------------------------------------- Needs to be in a course
2375:
2376: if ($ENV{'request.course.fn'}) {
2377:
2378: # --------------------------- Get query string for limited number of parameters
2379:
2380: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
2381: my ($name, $value) = split(/=/,$_);
2382: $value =~ tr/+/ /;
2383: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2384: if (($name eq 'uname') || ($name eq 'udom') ||
2385: ($name eq 'usymb') || ($name eq 'ufn')) {
2386: unless ($ENV{'form.'.$name}) {
2387: $ENV{'form.'.$name}=$value;
2388: }
2389: }
2390: }
2391:
2392: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2393: $ENV{'form.ufn'}='default_'.$1;
2394: }
2395:
2396: # -------------------------------------- Interactive loading of specific sheet?
2397: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2398: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2399: }
2400: # ------------------------------------------- Nothing there? Must be login user
2401:
2402: my $aname;
2403: my $adom;
2404:
2405: unless ($ENV{'form.uname'}) {
2406: $aname=$ENV{'user.name'};
2407: $adom=$ENV{'user.domain'};
2408: } else {
2409: $aname=$ENV{'form.uname'};
2410: $adom=$ENV{'form.udom'};
2411: }
2412:
2413: # ------------------------------------------------------------------- Open page
2414:
2415: $r->content_type('text/html');
2416: $r->header_out('Cache-control','no-cache');
2417: $r->header_out('Pragma','no-cache');
2418: $r->send_http_header;
2419:
2420: # --------------------------------------------------------------- Screen output
2421:
2422: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2423: $r->print(<<ENDSCRIPT);
2424: <script language="JavaScript">
2425:
2426: function celledit(cn,cf) {
2427: var cnf=prompt(cn,cf);
2428: if (cnf!=null) {
2429: document.sheet.unewfield.value=cn;
2430: document.sheet.unewformula.value=cnf;
2431: document.sheet.submit();
2432: }
2433: }
2434:
2435: function changesheet(cn) {
2436: document.sheet.unewfield.value=cn;
2437: document.sheet.unewformula.value='changesheet';
2438: document.sheet.submit();
2439: }
2440:
2441: </script>
2442: ENDSCRIPT
2443: $r->print('</head><body bgcolor="#FFFFFF">'.
2444: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2445: '<h1>LON-CAPA Spreadsheet</h1>'.
2446: '<form action="'.$r->uri.'" name=sheet method=post>'.
2447: &hiddenfield('uname',$ENV{'form.uname'}).
2448: &hiddenfield('udom',$ENV{'form.udom'}).
2449: &hiddenfield('usymb',$ENV{'form.usymb'}).
2450: &hiddenfield('unewfield','').
2451: &hiddenfield('unewformula',''));
2452:
2453: # ---------------------- Make sure that this gets out, even if user hits "stop"
2454:
2455: $r->rflush();
2456:
2457: # ---------------------------------------------------------------- Full recalc?
2458:
2459:
2460: if ($ENV{'form.forcerecalc'}) {
2461: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2462: undef %spreadsheets;
2463: undef %courserdatas;
2464: undef %userrdatas;
2465: undef %defaultsheets;
2466: undef %updatedata;
2467: }
2468:
2469: # ---------------------------------------- Read new sheet or modified worksheet
2470:
2471: $r->uri=~/\/(\w+)$/;
2472:
2473: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2474:
2475: # ------------------------ If a new formula had been entered, go from work copy
2476:
2477: if ($ENV{'form.unewfield'}) {
2478: $r->print('<h2>Modified Workcopy</h2>');
2479: $ENV{'form.unewformula'}=~s/\'/\"/g;
2480: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2481: $ENV{'form.unewformula'}.'<p>');
2482: &setfilename($asheet,$ENV{'form.ufn'});
2483: &tmpread($asheet,
2484: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2485:
2486: } elsif ($ENV{'form.saveas'}) {
2487: &setfilename($asheet,$ENV{'form.ufn'});
2488: &tmpread($asheet);
2489: } else {
2490: &readsheet($asheet,$ENV{'form.ufn'});
2491: }
2492:
2493: # -------------------------------------------------- Print out user information
2494:
2495: unless (&gettype($asheet) eq 'classcalc') {
2496: $r->print('<p><b>User:</b> '.&getuname($asheet).
2497: '<br><b>Domain:</b> '.&getudom($asheet));
2498: if (&getcsec($asheet) eq '-1') {
2499: $r->print('<h3><font color=red>'.
2500: 'Not a student in this course</font></h3>');
2501: } else {
2502: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2503: }
2504: if ($ENV{'form.usymb'}) {
2505: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2506: }
2507: }
2508:
2509: # ---------------------------------------------------------------- Course title
2510:
2511: $r->print('<h1>'.
2512: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2513: '</h1><h3>'.localtime().'</h3>');
2514:
2515: # ---------------------------------------------------- See if user can see this
2516:
2517: if ((&gettype($asheet) eq 'classcalc') ||
2518: (&getuname($asheet) ne $ENV{'user.name'}) ||
2519: (&getudom($asheet) ne $ENV{'user.domain'})) {
2520: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2521: $r->print(
2522: '<h1>Access Permission Denied</h1></form></body></html>');
2523: return OK;
2524: }
2525: }
2526:
2527: # ---------------------------------------------------------- Additional options
2528:
2529: $r->print(
2530: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2531: );
2532: if (&gettype($asheet) eq 'assesscalc') {
2533: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2534: &getuname($asheet).
2535: '&udom='.&getudom($asheet).
2536: '">Level up: Student Sheet</a></font><p>');
2537: }
2538:
2539: if ((&gettype($asheet) eq 'studentcalc') &&
2540: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2541: $r->print (
2542: '<p><font size=+2><a href="/adm/classcalc">'.
2543: 'Level up: Course Sheet</a></font><p>');
2544: }
2545:
2546:
2547: # ----------------------------------------------------------------- Save dialog
2548:
2549:
2550: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2551: my $fname=$ENV{'form.ufn'};
2552: $fname=~s/\_[^\_]+$//;
2553: if ($fname eq 'default') { $fname='course_default'; }
2554: $r->print('<input type=submit name=saveas value="Save as ...">'.
2555: '<input type=text size=20 name=newfn value="'.$fname.
2556: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2557: }
2558:
2559: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2560:
2561: # ----------------------------------------------------------------- Load dialog
2562: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2563: $r->print('<p><input type=submit name=load value="Load ...">'.
2564: '<select name="loadthissheet">'.
2565: '<option name="default">Default</option>');
2566: foreach (&othersheets($asheet,&gettype($asheet))) {
2567: $r->print('<option name="'.$_.'"');
2568: if ($ENV{'form.ufn'} eq $_) {
2569: $r->print(' selected');
2570: }
2571: $r->print('>'.$_.'</option>');
2572: }
2573: $r->print('</select><p>');
2574: if (&gettype($asheet) eq 'studentcalc') {
2575: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2576: }
2577: }
2578:
2579: # --------------------------------------------------------------- Cached sheets
2580:
2581: &expirationdates();
2582:
2583: undef %oldsheets;
2584: undef %loadedcaches;
2585:
2586: if (&gettype($asheet) eq 'classcalc') {
2587: $r->print("Loading previously calculated student sheets ...<br>\n");
2588: $r->rflush();
2589: &cachedcsheets();
2590: } elsif (&gettype($asheet) eq 'studentcalc') {
2591: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2592: $r->rflush();
2593: &cachedssheets(&getuname($asheet),&getudom($asheet),
2594: &getuhome($asheet));
2595: }
2596:
2597: # ----------------------------------------------------- Update sheet, load rows
2598:
2599: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2600: $r->rflush();
2601:
2602: &updatesheet($asheet);
2603:
2604: $r->print("Updated rows, loading row data ...<br>\n");
2605: $r->rflush();
2606:
2607: &loadrows($asheet,$r);
2608:
2609: $r->print("Loaded row data, calculating sheet ...<br>\n");
2610: $r->rflush();
2611:
2612: my $calcoutput=&calcsheet($asheet);
2613: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2614:
2615: # ---------------------------------------------------- See if something to save
2616:
2617: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2618: my $fname='';
2619: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2620: $fname=~s/\W/\_/g;
2621: if ($fname eq 'default') { $fname='course_default'; }
2622: $fname.='_'.&gettype($asheet);
2623: &setfilename($asheet,$fname);
2624: $ENV{'form.ufn'}=$fname;
2625: $r->print('<p>Saving spreadsheet: '.
2626: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2627: }
2628: }
2629:
2630: # ------------------------------------------------ Write the modified worksheet
2631:
2632: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2633:
2634: &tmpwrite($asheet);
2635:
2636: if (&gettype($asheet) eq 'studentcalc') {
2637: $r->print('<br>Show rows with empty A column: ');
2638: } else {
2639: $r->print('<br>Show empty rows: ');
2640: }
2641:
2642: $r->print(&hiddenfield('userselhidden','true').
2643: '<input type=checkbox name=showall onClick="submit()"');
2644:
2645: if ($ENV{'form.showall'}) {
2646: $r->print(' checked');
2647: } else {
2648: unless ($ENV{'form.userselhidden'}) {
2649: unless
2650: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2651: $r->print(' checked');
2652: $ENV{'form.showall'}=1;
2653: }
2654: }
2655: }
2656: $r->print('>');
2657: if (&gettype($asheet) eq 'classcalc') {
2658: $r->print(
2659: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2660: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2661: $r->print('>');
2662: }
2663: # ------------------------------------------------------------- Print out sheet
2664:
2665: &outsheet($r,$asheet);
2666: $r->print('</form></body></html>');
2667:
2668: # ------------------------------------------------------------------------ Done
2669: } else {
2670: # ----------------------------- Not in a course, or not allowed to modify parms
2671: $ENV{'user.error.msg'}=
2672: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2673: return HTTP_NOT_ACCEPTABLE;
2674: }
2675: return OK;
2676:
2677: }
2678:
2679: 1;
2680: __END__
2681:
2682:
2683:
2684:
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