1: #
2: # $Id: lonspreadsheet.pm,v 1.91 2002/06/08 15:27:06 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: # it is not a function, so it is a parameter name
744: # We should do the following:
745: # 1. Take the list of parameter names
746: # 2. look through the list for ones that match the parameter we want
747: # 3. If there are no collisions, return the one that matches
748: # 4. If there is a collision, return 'bad parameter name error'
749: my $returnvalue = '';
750: my @matches = ();
751: $#matches = -1;
752: study $expression;
753: foreach $parameter (keys(%c)) {
754: push @matches,$parameter if ($parameter =~ /$expression/);
755: }
756: if ($#matches == 0) {
757: $returnvalue = '$c{\''.$matches[0].'\'}';
758: } else {
759: $returnvalue = "'bad parameter name : $expression'";
760: }
761: return $returnvalue;
762: }
763: }
764:
765: sub sett {
766: %t=();
767: my $pattern='';
768: if ($sheettype eq 'assesscalc') {
769: $pattern='A';
770: } else {
771: $pattern='[A-Z]';
772: }
773: foreach (keys(%f)) {
774: if ($_=~/template\_(\w)/) {
775: my $col=$1;
776: unless ($col=~/^$pattern/) {
777: foreach (keys(%f)) {
778: if ($_=~/A(\d+)/) {
779: my $trow=$1;
780: if ($trow) {
781: # Get the name of this cell
782: my $lb=$col.$trow;
783: # Grab the template declaration
784: $t{$lb}=$f{'template_'.$col};
785: # Replace '#' with the row number
786: $t{$lb}=~s/\#/$trow/g;
787: # Replace '....' with ','
788: $t{$lb}=~s/\.\.+/\,/g;
789: # Replace 'A0' with the value from 'A0'
790: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
791: # Replace parameters
792: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
793: }
794: }
795: }
796: }
797: }
798: }
799: foreach (keys(%f)) {
800: if (($f{$_}) && ($_!~/template\_/)) {
801: my $matches=($_=~/^$pattern(\d+)/);
802: if (($matches) && ($1)) {
803: unless ($f{$_}=~/^\!/) {
804: $t{$_}=$c{$_};
805: }
806: } else {
807: $t{$_}=$f{$_};
808: $t{$_}=~s/\.\.+/\,/g;
809: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
810: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
811: }
812: }
813: }
814: # For some reason 'A0' gets special treatment... This seems superfluous
815: # but I imagine it is here for a reason.
816: $t{'A0'}=$f{'A0'};
817: $t{'A0'}=~s/\.\.+/\,/g;
818: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
819: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
820: }
821:
822: sub calc {
823: %v=();
824: &sett();
825: my $notfinished=1;
826: my $depth=0;
827: while ($notfinished) {
828: $notfinished=0;
829: foreach (keys(%t)) {
830: my $old=$v{$_};
831: $v{$_}=eval($t{$_});
832: if ($@) {
833: %v=();
834: return $@;
835: }
836: if ($v{$_} ne $old) { $notfinished=1; }
837: }
838: $depth++;
839: if ($depth>100) {
840: %v=();
841: return 'Maximum calculation depth exceeded';
842: }
843: }
844: return '';
845: }
846:
847: sub templaterow {
848: my @cols=();
849: $cols[0]='<b><font size=+1>Template</font></b>';
850: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
851: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
852: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
853: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
854: my $fm=$f{'template_'.$_};
855: $fm=~s/[\'\"]/\&\#34;/g;
856: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
857: }
858: return @cols;
859: }
860:
861: sub outrowassess {
862: my $n=shift;
863: my @cols=();
864: if ($n) {
865: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
866: $cols[0]=$rl{$usy}.'<br>'.
867: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
868: ')"><option name="default">Default</option>';
869: foreach (@os) {
870: $cols[0].='<option name="'.$_.'"';
871: if ($ufn eq $_) {
872: $cols[0].=' selected';
873: }
874: $cols[0].='>'.$_.'</option>';
875: }
876: $cols[0].='</select>';
877: } else {
878: $cols[0]='<b><font size=+1>Export</font></b>';
879: }
880: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
881: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
882: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
883: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
884: my $fm=$f{$_.$n};
885: $fm=~s/[\'\"]/\&\#34;/g;
886: push(@cols,"'$_$n','$fm'".'___eq___'.$v{$_.$n});
887: }
888: return @cols;
889: }
890:
891: sub outrow {
892: my $n=shift;
893: my @cols=();
894: if ($n) {
895: $cols[0]=$rl{$f{'A'.$n}};
896: } else {
897: $cols[0]='<b><font size=+1>Export</font></b>';
898: }
899: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
900: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
901: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
902: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
903: my $fm=$f{$_.$n};
904: $fm=~s/[\'\"]/\&\#34;/g;
905: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
906: }
907: return @cols;
908: }
909:
910: sub exportrowa {
911: my @exportarray=();
912: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
913: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
914: $exportarray[$#exportarray+1]=$v{$_.'0'};
915: }
916: return @exportarray;
917: }
918:
919: # ------------------------------------------- End of "Inside of the safe space"
920: ENDDEFS
921: $safeeval->reval($code);
922: return $safeeval;
923: }
924:
925: # ------------------------------------------------ Add or change formula values
926:
927: sub setformulas {
928: my ($safeeval,%f)=@_;
929: %{$safeeval->varglob('f')}=%f;
930: }
931:
932: # ------------------------------------------------ Add or change formula values
933:
934: sub setconstants {
935: my ($safeeval,%c)=@_;
936: %{$safeeval->varglob('c')}=%c;
937: }
938:
939: # --------------------------------------------- Set names of other spreadsheets
940:
941: sub setothersheets {
942: my ($safeeval,@os)=@_;
943: @{$safeeval->varglob('os')}=@os;
944: }
945:
946: # ------------------------------------------------ Add or change formula values
947:
948: sub setrowlabels {
949: my ($safeeval,%rl)=@_;
950: %{$safeeval->varglob('rl')}=%rl;
951: }
952:
953: # ------------------------------------------------------- Calculate spreadsheet
954:
955: sub calcsheet {
956: my $safeeval=shift;
957: $safeeval->reval('&calc();');
958: }
959:
960: # ------------------------------------------------------------------ Get values
961:
962: sub getvalues {
963: my $safeeval=shift;
964: return $safeeval->reval('%v');
965: }
966:
967: # ---------------------------------------------------------------- Get formulas
968:
969: sub getformulas {
970: my $safeeval=shift;
971: return %{$safeeval->varglob('f')};
972: }
973:
974: # -------------------------------------------------------------------- Get type
975:
976: sub gettype {
977: my $safeeval=shift;
978: return $safeeval->reval('$sheettype');
979: }
980:
981: # ------------------------------------------------------------------ Set maxrow
982:
983: sub setmaxrow {
984: my ($safeeval,$row)=@_;
985: $safeeval->reval('$maxrow='.$row.';');
986: }
987:
988: # ------------------------------------------------------------------ Get maxrow
989:
990: sub getmaxrow {
991: my $safeeval=shift;
992: return $safeeval->reval('$maxrow');
993: }
994:
995: # ---------------------------------------------------------------- Set filename
996:
997: sub setfilename {
998: my ($safeeval,$fn)=@_;
999: $safeeval->reval('$filename="'.$fn.'";');
1000: }
1001:
1002: # ---------------------------------------------------------------- Get filename
1003:
1004: sub getfilename {
1005: my $safeeval=shift;
1006: return $safeeval->reval('$filename');
1007: }
1008:
1009: # --------------------------------------------------------------- Get course ID
1010:
1011: sub getcid {
1012: my $safeeval=shift;
1013: return $safeeval->reval('$cid');
1014: }
1015:
1016: # --------------------------------------------------------- Get course filename
1017:
1018: sub getcfn {
1019: my $safeeval=shift;
1020: return $safeeval->reval('$cfn');
1021: }
1022:
1023: # ----------------------------------------------------------- Get course number
1024:
1025: sub getcnum {
1026: my $safeeval=shift;
1027: return $safeeval->reval('$cnum');
1028: }
1029:
1030: # ------------------------------------------------------------- Get course home
1031:
1032: sub getchome {
1033: my $safeeval=shift;
1034: return $safeeval->reval('$chome');
1035: }
1036:
1037: # ----------------------------------------------------------- Get course domain
1038:
1039: sub getcdom {
1040: my $safeeval=shift;
1041: return $safeeval->reval('$cdom');
1042: }
1043:
1044: # ---------------------------------------------------------- Get course section
1045:
1046: sub getcsec {
1047: my $safeeval=shift;
1048: return $safeeval->reval('$csec');
1049: }
1050:
1051: # --------------------------------------------------------------- Get user name
1052:
1053: sub getuname {
1054: my $safeeval=shift;
1055: return $safeeval->reval('$uname');
1056: }
1057:
1058: # ------------------------------------------------------------- Get user domain
1059:
1060: sub getudom {
1061: my $safeeval=shift;
1062: return $safeeval->reval('$udom');
1063: }
1064:
1065: # --------------------------------------------------------------- Get user home
1066:
1067: sub getuhome {
1068: my $safeeval=shift;
1069: return $safeeval->reval('$uhome');
1070: }
1071:
1072: # -------------------------------------------------------------------- Get symb
1073:
1074: sub getusymb {
1075: my $safeeval=shift;
1076: return $safeeval->reval('$usymb');
1077: }
1078:
1079: # ------------------------------------------------------------- Export of A-row
1080:
1081: sub exportdata {
1082: my $safeeval=shift;
1083: return $safeeval->reval('&exportrowa()');
1084: }
1085:
1086:
1087: # ========================================================== End of Spreadsheet
1088: # =============================================================================
1089:
1090: #
1091: # Procedures for screen output
1092: #
1093: # --------------------------------------------- Produce output row n from sheet
1094:
1095: sub rown {
1096: my ($safeeval,$n)=@_;
1097: my $defaultbg;
1098: my $rowdata='';
1099: my $dataflag=0;
1100: unless ($n eq '-') {
1101: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1102: } else {
1103: $defaultbg='#E0FF';
1104: }
1105: unless ($ENV{'form.showcsv'}) {
1106: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1107: } else {
1108: $rowdata.="\n".'"'.$n.'"';
1109: }
1110: my $showf=0;
1111: my $proc;
1112: my $maxred;
1113: my $sheettype=&gettype($safeeval);
1114: if ($sheettype eq 'studentcalc') {
1115: $proc='&outrowassess';
1116: $maxred=26;
1117: } else {
1118: $proc='&outrow';
1119: }
1120: if ($sheettype eq 'assesscalc') {
1121: $maxred=1;
1122: } else {
1123: $maxred=26;
1124: }
1125: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1126: foreach ($safeeval->reval($proc.'('.$n.')')) {
1127: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1128: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1129: if ((($vl ne '') || ($vl eq '0')) &&
1130: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1131: if ($showf==0) { $vl=$_; }
1132: unless ($ENV{'form.showcsv'}) {
1133: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1134: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1135: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1136: if ($vl eq '') {
1137: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1138: }
1139: $rowdata.=
1140: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
1141: '</a></td>';
1142: } else {
1143: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1144: }
1145: } else {
1146: $rowdata.=',"'.$vl.'"';
1147: }
1148: $showf++;
1149: } # End of foreach($safeval...)
1150: if ($ENV{'form.showall'} || ($dataflag)) {
1151: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1152: } else {
1153: return '';
1154: }
1155: }
1156:
1157: # ------------------------------------------------------------- Print out sheet
1158:
1159: sub outsheet {
1160: my ($r,$safeeval)=@_;
1161: my $maxred;
1162: my $realm;
1163: if (&gettype($safeeval) eq 'assesscalc') {
1164: $maxred=1;
1165: $realm='Assessment';
1166: } elsif (&gettype($safeeval) eq 'studentcalc') {
1167: $maxred=26;
1168: $realm='User';
1169: } else {
1170: $maxred=26;
1171: $realm='Course';
1172: }
1173: my $maxyellow=52-$maxred;
1174: my $tabledata;
1175: unless ($ENV{'form.showcsv'}) {
1176: $tabledata=
1177: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1178: $realm.'</font></th>'.
1179: '<td bgcolor=#FFDDDD colspan='.$maxred.
1180: '><b><font size=+1>Import</font></b></td>'.
1181: '<td colspan='.$maxyellow.
1182: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1183: my $showf=0;
1184: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1185: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1186: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1187: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1188: $showf++;
1189: if ($showf<=$maxred) {
1190: $tabledata.='<td bgcolor="#FFDDDD">';
1191: } else {
1192: $tabledata.='<td>';
1193: }
1194: $tabledata.="<b><font size=+1>$_</font></b></td>";
1195: }
1196: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1197: } else { $tabledata='<pre>'; }
1198:
1199: $r->print($tabledata);
1200:
1201: my $row;
1202: my $maxrow=&getmaxrow($safeeval);
1203:
1204: my @sortby=();
1205: my @sortidx=();
1206: for ($row=1;$row<=$maxrow;$row++) {
1207: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1208: $sortidx[$row-1]=$row-1;
1209: }
1210: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1211:
1212: my $what='Student';
1213: if (&gettype($safeeval) eq 'assesscalc') {
1214: $what='Item';
1215: } elsif (&gettype($safeeval) eq 'studentcalc') {
1216: $what='Assessment';
1217: }
1218:
1219: my $n=0;
1220: for ($row=0;$row<$maxrow;$row++) {
1221: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1222: if ($thisrow) {
1223: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1224: $r->print("</table>\n<br>\n");
1225: $r->rflush();
1226: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1227: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1228: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1229: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1230: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1231: $r->print('<td>'.$_.'</td>');
1232: }
1233: $r->print('</tr>');
1234: }
1235: $n++;
1236: $r->print($thisrow);
1237: }
1238: }
1239: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1240: }
1241:
1242: #
1243: # ----------------------------------------------- Read list of available sheets
1244: #
1245: sub othersheets {
1246: my ($safeeval,$stype)=@_;
1247: #
1248: my $cnum=&getcnum($safeeval);
1249: my $cdom=&getcdom($safeeval);
1250: my $chome=&getchome($safeeval);
1251: #
1252: my @alternatives=();
1253: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1254: my ($tmp) = keys(%results);
1255: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1256: @alternatives = sort (keys(%results));
1257: }
1258: return @alternatives;
1259: }
1260:
1261:
1262: #
1263: # -------------------------------------- Parse a spreadsheet
1264: #
1265: sub parse_sheet {
1266: # $sheetxml is a scalar reference or a scalar
1267: my ($sheetxml) = @_;
1268: if (! ref($sheetxml)) {
1269: my $tmp = $sheetxml;
1270: $sheetxml = \$tmp;
1271: }
1272: my %f;
1273: my $parser=HTML::TokeParser->new($sheetxml);
1274: my $token;
1275: while ($token=$parser->get_token) {
1276: if ($token->[0] eq 'S') {
1277: if ($token->[1] eq 'field') {
1278: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1279: $parser->get_text('/field');
1280: }
1281: if ($token->[1] eq 'template') {
1282: $f{'template_'.$token->[2]->{'col'}}=
1283: $parser->get_text('/template');
1284: }
1285: }
1286: }
1287: return \%f;
1288: }
1289:
1290: #
1291: # -------------------------------------- Read spreadsheet formulas for a course
1292: #
1293:
1294: sub readsheet {
1295: my ($safeeval,$fn)=@_;
1296: my $stype=&gettype($safeeval);
1297: my $cnum=&getcnum($safeeval);
1298: my $cdom=&getcdom($safeeval);
1299: my $chome=&getchome($safeeval);
1300:
1301: if (! defined($fn)) {
1302: # There is no filename. Look for defaults in course and global, cache
1303: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1304: my %tmphash = &Apache::lonnet::get('environment',
1305: ['spreadsheet_default_'.$stype],
1306: $cdom,$cnum);
1307: my ($tmp) = keys(%tmphash);
1308: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1309: $fn = 'default_'.$stype;
1310: } else {
1311: $fn = $tmphash{'spreadsheet_default_'.$stype};
1312: }
1313: unless (($fn) && ($fn!~/^error\:/)) {
1314: $fn='default_'.$stype;
1315: }
1316: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1317: }
1318: }
1319:
1320: # ---------------------------------------------------------- fn now has a value
1321:
1322: &setfilename($safeeval,$fn);
1323:
1324: # ------------------------------------------------------ see if sheet is cached
1325: my $fstring='';
1326: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1327: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1328: } else {
1329:
1330: # ---------------------------------------------------- Not cached, need to read
1331:
1332: my %f=();
1333:
1334: if ($fn=~/^default\_/) {
1335: my $sheetxml='';
1336: my $fh;
1337: my $dfn=$fn;
1338: $dfn=~s/\_/\./g;
1339: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1340: $sheetxml=join('',<$fh>);
1341: } else {
1342: $sheetxml='<field row="0" col="A">"Error"</field>';
1343: }
1344: %f=%{&parse_sheet(\$sheetxml)};
1345: } elsif($fn=~/\/*\.spreadsheet$/) {
1346: my $sheetxml=&Apache::lonnet::getfile
1347: (&Apache::lonnet::filelocation('',$fn));
1348: if ($sheetxml == -1) {
1349: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1350: .$fn.'"</field>';
1351: }
1352: %f=%{&parse_sheet(\$sheetxml)};
1353: } else {
1354: my $sheet='';
1355: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1356: my ($tmp) = keys(%tmphash);
1357: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1358: foreach (keys(%tmphash)) {
1359: $f{$_}=$tmphash{$_};
1360: }
1361: }
1362: }
1363: # --------------------------------------------------------------- Cache and set
1364: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1365: &setformulas($safeeval,%f);
1366: }
1367: }
1368:
1369: # -------------------------------------------------------- Make new spreadsheet
1370:
1371: sub makenewsheet {
1372: my ($uname,$udom,$stype,$usymb)=@_;
1373: my $safeeval=initsheet($stype);
1374: $safeeval->reval(
1375: '$uname="'.$uname.
1376: '";$udom="'.$udom.
1377: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1378: '";$sheettype="'.$stype.
1379: '";$usymb="'.$usymb.
1380: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1381: $ENV{'request.course.id'}).
1382: '";$cid="'.$ENV{'request.course.id'}.
1383: '";$cfn="'.$ENV{'request.course.fn'}.
1384: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1385: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1386: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1387: return $safeeval;
1388: }
1389:
1390: # ------------------------------------------------------------ Save spreadsheet
1391:
1392: sub writesheet {
1393: my ($safeeval,$makedef)=@_;
1394: my $cid=&getcid($safeeval);
1395: if (&Apache::lonnet::allowed('opa',$cid)) {
1396: my %f=&getformulas($safeeval);
1397: my $stype=&gettype($safeeval);
1398: my $cnum=&getcnum($safeeval);
1399: my $cdom=&getcdom($safeeval);
1400: my $chome=&getchome($safeeval);
1401: my $fn=&getfilename($safeeval);
1402:
1403: # ------------------------------------------------------------- Cache new sheet
1404: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1405: # ----------------------------------------------------------------- Write sheet
1406: my $sheetdata='';
1407: foreach (keys(%f)) {
1408: unless ($f{$_} eq 'import') {
1409: $sheetdata.=&Apache::lonnet::escape($_).'='.
1410: &Apache::lonnet::escape($f{$_}).'&';
1411: }
1412: }
1413: $sheetdata=~s/\&$//;
1414: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1415: $sheetdata,$chome);
1416: if ($reply eq 'ok') {
1417: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1418: $stype.'_spreadsheets:'.
1419: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1420: $ENV{'user.domain'},
1421: $chome);
1422: if ($reply eq 'ok') {
1423: if ($makedef) {
1424: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1425: ':environment:spreadsheet_default_'.$stype.'='.
1426: &Apache::lonnet::escape($fn),
1427: $chome);
1428: } else {
1429: return $reply;
1430: }
1431: } else {
1432: return $reply;
1433: }
1434: } else {
1435: return $reply;
1436: }
1437: }
1438: return 'unauthorized';
1439: }
1440:
1441: # ----------------------------------------------- Make a temp copy of the sheet
1442: # "Modified workcopy" - interactive only
1443: #
1444:
1445: sub tmpwrite {
1446: my $safeeval=shift;
1447: my $fn=$ENV{'user.name'}.'_'.
1448: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1449: &getfilename($safeeval);
1450: $fn=~s/\W/\_/g;
1451: $fn=$tmpdir.$fn.'.tmp';
1452: my $fh;
1453: if ($fh=Apache::File->new('>'.$fn)) {
1454: print $fh join("\n",&getformulas($safeeval));
1455: }
1456: }
1457:
1458: # ---------------------------------------------------------- Read the temp copy
1459:
1460: sub tmpread {
1461: my ($safeeval,$nfield,$nform)=@_;
1462: my $fn=$ENV{'user.name'}.'_'.
1463: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1464: &getfilename($safeeval);
1465: $fn=~s/\W/\_/g;
1466: $fn=$tmpdir.$fn.'.tmp';
1467: my $fh;
1468: my %fo=();
1469: if ($fh=Apache::File->new($fn)) {
1470: my $name;
1471: while ($name=<$fh>) {
1472: chomp($name);
1473: my $value=<$fh>;
1474: chomp($value);
1475: $fo{$name}=$value;
1476: }
1477: }
1478: if ($nform eq 'changesheet') {
1479: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1480: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1481: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1482: }
1483: } else {
1484: if ($nfield) { $fo{$nfield}=$nform; }
1485: }
1486: &setformulas($safeeval,%fo);
1487: }
1488:
1489: # ================================================================== Parameters
1490: # -------------------------------------------- Figure out a cascading parameter
1491: #
1492: # For this function to work
1493: #
1494: # * parmhash needs to be tied
1495: # * courseopt and useropt need to be initialized for this user and course
1496: #
1497:
1498: sub parmval {
1499: my ($what,$safeeval)=@_;
1500: my $cid=&getcid($safeeval);
1501: my $csec=&getcsec($safeeval);
1502: my $uname=&getuname($safeeval);
1503: my $udom=&getudom($safeeval);
1504: my $symb=&getusymb($safeeval);
1505:
1506: unless ($symb) { return ''; }
1507: my $result='';
1508:
1509: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1510: # ----------------------------------------------------- Cascading lookup scheme
1511: my $rwhat=$what;
1512: $what=~s/^parameter\_//;
1513: $what=~s/\_([^\_]+)$/\.$1/;
1514:
1515: my $symbparm=$symb.'.'.$what;
1516: my $mapparm=$mapname.'___(all).'.$what;
1517: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1518:
1519: my $seclevel=
1520: $usercourseprefix.'.['.
1521: $csec.'].'.$what;
1522: my $seclevelr=
1523: $usercourseprefix.'.['.
1524: $csec.'].'.$symbparm;
1525: my $seclevelm=
1526: $usercourseprefix.'.['.
1527: $csec.'].'.$mapparm;
1528:
1529: my $courselevel=
1530: $usercourseprefix.'.'.$what;
1531: my $courselevelr=
1532: $usercourseprefix.'.'.$symbparm;
1533: my $courselevelm=
1534: $usercourseprefix.'.'.$mapparm;
1535:
1536: # ---------------------------------------------------------- fourth, check user
1537:
1538: if ($uname) {
1539:
1540: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1541:
1542: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1543:
1544: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1545:
1546: }
1547:
1548: # --------------------------------------------------------- third, check course
1549:
1550: if ($csec) {
1551:
1552: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1553:
1554: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1555:
1556: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1557:
1558: }
1559:
1560: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1561:
1562: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1563:
1564: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1565:
1566: # ----------------------------------------------------- second, check map parms
1567:
1568: my $thisparm=$parmhash{$symbparm};
1569: if ($thisparm) { return $thisparm; }
1570:
1571: # -------------------------------------------------------- first, check default
1572:
1573: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1574:
1575: }
1576:
1577: # ---------------------------------------------- Update rows for course listing
1578:
1579: sub updateclasssheet {
1580: my $safeeval=shift;
1581: my $cnum=&getcnum($safeeval);
1582: my $cdom=&getcdom($safeeval);
1583: my $cid=&getcid($safeeval);
1584: my $chome=&getchome($safeeval);
1585:
1586: # ---------------------------------------------- Read class list and row labels
1587:
1588: my $classlst=&Apache::lonnet::reply
1589: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1590: my %currentlist=();
1591: my $now=time;
1592: unless ($classlst=~/^error\:/) {
1593: foreach (split(/\&/,$classlst)) {
1594: my ($name,$value)=split(/\=/,$_);
1595: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1596: my $active=1;
1597: if (($end) && ($now>$end)) { $active=0; }
1598: if ($active) {
1599: my $rowlabel='';
1600: $name=&Apache::lonnet::unescape($name);
1601: my ($sname,$sdom)=split(/\:/,$name);
1602: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1603: if ($ssec==-1) {
1604: unless ($ENV{'form.showcsv'}) {
1605: $rowlabel='<font color=red>Data not available: '.$name.
1606: '</font>';
1607: } else {
1608: $rowlabel='ERROR","'.$name.
1609: '","Data not available","","","';
1610: }
1611: } else {
1612: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1613: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1614: ':environment:firstname&middlename&lastname&generation',
1615: &Apache::lonnet::homeserver($sname,$sdom));
1616: unless ($ENV{'form.showcsv'}) {
1617: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1618: '&udom='.$sdom.'">'.
1619: $ssec.' '.$reply{$sname}.'<br>';
1620: foreach ( split(/\&/,$reply)) {
1621: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1622: }
1623: $rowlabel.='</a>';
1624: } else {
1625: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1626: my $ncount=0;
1627: foreach (split(/\&/,$reply)) {
1628: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1629: $ncount++;
1630: }
1631: unless ($ncount==4) { $rowlabel.=',""'; }
1632: $rowlabel=~s/\"$//;
1633: }
1634: }
1635: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1636: }
1637: } # end of foreach (split(/\&/,$classlst))
1638: #
1639: # -------------------- Find discrepancies between the course row table and this
1640: #
1641: my %f=&getformulas($safeeval);
1642: my $changed=0;
1643:
1644: my $maxrow=0;
1645: my %existing=();
1646:
1647: # ----------------------------------------------------------- Now obsolete rows
1648: foreach (keys(%f)) {
1649: if ($_=~/^A(\d+)/) {
1650: $maxrow=($1>$maxrow)?$1:$maxrow;
1651: $existing{$f{$_}}=1;
1652: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1653: $f{$_}='!!! Obsolete';
1654: $changed=1;
1655: }
1656: }
1657: }
1658:
1659: # -------------------------------------------------------- New and unknown keys
1660:
1661: foreach (sort keys(%currentlist)) {
1662: unless ($existing{$_}) {
1663: $changed=1;
1664: $maxrow++;
1665: $f{'A'.$maxrow}=$_;
1666: }
1667: }
1668:
1669: if ($changed) { &setformulas($safeeval,%f); }
1670:
1671: &setmaxrow($safeeval,$maxrow);
1672: &setrowlabels($safeeval,%currentlist);
1673:
1674: } else {
1675: return 'Could not access course data';
1676: }
1677: }
1678:
1679: # ----------------------------------- Update rows for student and assess sheets
1680:
1681: sub updatestudentassesssheet {
1682: my $safeeval=shift;
1683: my %bighash;
1684: my $stype=&gettype($safeeval);
1685: my %current=();
1686: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1687: # -------------------------------------------------------------------- Tie hash
1688: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1689: &GDBM_READER,0640)) {
1690: # --------------------------------------------------------- Get all assessments
1691:
1692: my %allkeys=('timestamp' =>
1693: 'Timestamp of Last Transaction<br>timestamp',
1694: 'subnumber' =>
1695: 'Number of Submissions<br>subnumber',
1696: 'tutornumber' =>
1697: 'Number of Tutor Responses<br>tutornumber',
1698: 'totalpoints' =>
1699: 'Total Points Granted<br>totalpoints');
1700:
1701: my $adduserstr='';
1702: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1703: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1704: $adduserstr='&uname='.&getuname($safeeval).
1705: '&udom='.&getudom($safeeval);
1706: }
1707:
1708: my %allassess=('_feedback' =>
1709: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1710: '">Feedback</a>',
1711: '_evaluation' =>
1712: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1713: '">Evaluation</a>',
1714: '_tutoring' =>
1715: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1716: '">Tutoring</a>',
1717: '_discussion' =>
1718: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1719: '">Discussion</a>'
1720: );
1721:
1722: foreach (keys(%bighash)) {
1723: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1724: my $mapid=$1;
1725: my $resid=$2;
1726: my $id=$mapid.'.'.$resid;
1727: my $srcf=$bighash{$_};
1728: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1729: my $symb=
1730: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1731: '___'.$resid.'___'.
1732: &Apache::lonnet::declutter($srcf);
1733: $allassess{$symb}=
1734: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1735: $bighash{'title_'.$id}.'</a>';
1736: if ($stype eq 'assesscalc') {
1737: foreach (split(/\,/,
1738: &Apache::lonnet::metadata($srcf,'keys'))) {
1739: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1740: my $key=$_;
1741: my $display=
1742: &Apache::lonnet::metadata($srcf,$key.'.display');
1743: unless ($display) {
1744: $display.=
1745: &Apache::lonnet::metadata($srcf,$key.'.name');
1746: }
1747: $display.='<br>'.$key;
1748: $allkeys{$key}=$display;
1749: }
1750: } # end of foreach
1751: }
1752: }
1753: }
1754: } # end of foreach (keys(%bighash))
1755: untie(%bighash);
1756:
1757: #
1758: # %allkeys has a list of storage and parameter displays by unikey
1759: # %allassess has a list of all resource displays by symb
1760: #
1761:
1762: if ($stype eq 'assesscalc') {
1763: %current=%allkeys;
1764: } elsif ($stype eq 'studentcalc') {
1765: %current=%allassess;
1766: }
1767: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1768: join('___;___',%current);
1769: } else {
1770: return 'Could not access course data';
1771: }
1772: # ------------------------------------------------------ Get current from cache
1773: } else {
1774: %current=split(/\_\_\_\;\_\_\_/,
1775: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1776: }
1777: # -------------------- Find discrepancies between the course row table and this
1778: #
1779: my %f=&getformulas($safeeval);
1780: my $changed=0;
1781:
1782: my $maxrow=0;
1783: my %existing=();
1784:
1785: # ----------------------------------------------------------- Now obsolete rows
1786: foreach (keys(%f)) {
1787: if ($_=~/^A(\d+)/) {
1788: $maxrow=($1>$maxrow)?$1:$maxrow;
1789: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1790: $existing{$usy}=1;
1791: unless ((defined($current{$usy})) || (!$1)) {
1792: $f{$_}='!!! Obsolete';
1793: $changed=1;
1794: } elsif ($ufn) {
1795: $current{$usy}
1796: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1797: }
1798: }
1799: }
1800:
1801: # -------------------------------------------------------- New and unknown keys
1802:
1803: foreach (keys(%current)) {
1804: unless ($existing{$_}) {
1805: $changed=1;
1806: $maxrow++;
1807: $f{'A'.$maxrow}=$_;
1808: }
1809: }
1810:
1811: if ($changed) { &setformulas($safeeval,%f); }
1812:
1813: &setmaxrow($safeeval,$maxrow);
1814: &setrowlabels($safeeval,%current);
1815:
1816: undef %current;
1817: undef %existing;
1818: }
1819:
1820: # ------------------------------------------------ Load data for one assessment
1821:
1822: sub loadstudent {
1823: my $safeeval=shift;
1824: my %c=();
1825: my %f=&getformulas($safeeval);
1826: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1827: %cachedstores=();
1828: {
1829: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1830: &getuname($safeeval).':'.
1831: &getcid($safeeval),
1832: &getuhome($safeeval));
1833: unless ($reply=~/^error\:/) {
1834: foreach ( split(/\&/,$reply)) {
1835: my ($name,$value)=split(/\=/,$_);
1836: $cachedstores{&Apache::lonnet::unescape($name)}=
1837: &Apache::lonnet::unescape($value);
1838: }
1839: }
1840: }
1841: my @assessdata=();
1842: foreach (keys(%f)) {
1843: if ($_=~/^A(\d+)/) {
1844: my $row=$1;
1845: unless (($f{$_}=~/^\!/) || ($row==0)) {
1846: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1847: @assessdata=&exportsheet(&getuname($safeeval),
1848: &getudom($safeeval),
1849: 'assesscalc',$usy,$ufn);
1850: my $index=0;
1851: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1852: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1853: if ($assessdata[$index]) {
1854: my $col=$_;
1855: if ($assessdata[$index]=~/\D/) {
1856: $c{$col.$row}="'".$assessdata[$index]."'";
1857: } else {
1858: $c{$col.$row}=$assessdata[$index];
1859: }
1860: unless ($col eq 'A') {
1861: $f{$col.$row}='import';
1862: }
1863: }
1864: $index++;
1865: }
1866: }
1867: }
1868: }
1869: $cachedassess='';
1870: undef %cachedstores;
1871: &setformulas($safeeval,%f);
1872: &setconstants($safeeval,%c);
1873: }
1874:
1875: # --------------------------------------------------- Load data for one student
1876:
1877: sub loadcourse {
1878: my ($safeeval,$r)=@_;
1879: my %c=();
1880: my %f=&getformulas($safeeval);
1881: my $total=0;
1882: foreach (keys(%f)) {
1883: if ($_=~/^A(\d+)/) {
1884: unless ($f{$_}=~/^\!/) { $total++; }
1885: }
1886: }
1887: my $now=0;
1888: my $since=time;
1889: $r->print(<<ENDPOP);
1890: <script>
1891: popwin=open('','popwin','width=400,height=100');
1892: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1893: '<h3>Spreadsheet Calculation Progress</h3>'+
1894: '<form name=popremain>'+
1895: '<input type=text size=35 name=remaining value=Starting></form>'+
1896: '</body></html>');
1897: popwin.document.close();
1898: </script>
1899: ENDPOP
1900: $r->rflush();
1901: foreach (keys(%f)) {
1902: if ($_=~/^A(\d+)/) {
1903: my $row=$1;
1904: unless (($f{$_}=~/^\!/) || ($row==0)) {
1905: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1906: 'studentcalc');
1907: undef %userrdatas;
1908: $now++;
1909: $r->print('<script>popwin.document.popremain.remaining.value="'.
1910: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1911: ' secs remaining";</script>');
1912: $r->rflush();
1913:
1914: my $index=0;
1915: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1916: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1917: if ($studentdata[$index]) {
1918: my $col=$_;
1919: if ($studentdata[$index]=~/\D/) {
1920: $c{$col.$row}="'".$studentdata[$index]."'";
1921: } else {
1922: $c{$col.$row}=$studentdata[$index];
1923: }
1924: unless ($col eq 'A') {
1925: $f{$col.$row}='import';
1926: }
1927: }
1928: $index++;
1929: }
1930: }
1931: }
1932: }
1933: &setformulas($safeeval,%f);
1934: &setconstants($safeeval,%c);
1935: $r->print('<script>popwin.close()</script>');
1936: $r->rflush();
1937: }
1938:
1939: # ------------------------------------------------ Load data for one assessment
1940:
1941: sub loadassessment {
1942: my $safeeval=shift;
1943:
1944: my $uhome=&getuhome($safeeval);
1945: my $uname=&getuname($safeeval);
1946: my $udom=&getudom($safeeval);
1947: my $symb=&getusymb($safeeval);
1948: my $cid=&getcid($safeeval);
1949: my $cnum=&getcnum($safeeval);
1950: my $cdom=&getcdom($safeeval);
1951: my $chome=&getchome($safeeval);
1952:
1953: my $namespace;
1954: unless ($namespace=$cid) { return ''; }
1955:
1956: # ----------------------------------------------------------- Get stored values
1957:
1958: my %returnhash=();
1959:
1960: if ($cachedassess eq $uname.':'.$udom) {
1961: #
1962: # get data out of the dumped stores
1963: #
1964:
1965: my $version=$cachedstores{'version:'.$symb};
1966: my $scope;
1967: for ($scope=1;$scope<=$version;$scope++) {
1968: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1969: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1970: }
1971: }
1972:
1973: } else {
1974: #
1975: # restore individual
1976: #
1977:
1978: my $answer=&Apache::lonnet::reply(
1979: "restore:$udom:$uname:".
1980: &Apache::lonnet::escape($namespace).":".
1981: &Apache::lonnet::escape($symb),$uhome);
1982: foreach (split(/\&/,$answer)) {
1983: my ($name,$value)=split(/\=/,$_);
1984: $returnhash{&Apache::lonnet::unescape($name)}=
1985: &Apache::lonnet::unescape($value);
1986: }
1987: my $version;
1988: for ($version=1;$version<=$returnhash{'version'};$version++) {
1989: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1990: $returnhash{$_}=$returnhash{$version.':'.$_};
1991: }
1992: }
1993: }
1994: # ----------------------------- returnhash now has all stores for this resource
1995:
1996: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1997:
1998: my @oldkeys=keys %returnhash;
1999:
2000: foreach (@oldkeys) {
2001: my $name=$_;
2002: my $value=$returnhash{$_};
2003: delete $returnhash{$_};
2004: $name=~s/\_/\./g;
2005: $returnhash{$name}=$value;
2006: }
2007:
2008: # ---------------------------- initialize coursedata and userdata for this user
2009: undef %courseopt;
2010: undef %useropt;
2011:
2012: my $userprefix=$uname.'_'.$udom.'_';
2013:
2014: unless ($uhome eq 'no_host') {
2015: # -------------------------------------------------------------- Get coursedata
2016: unless
2017: ((time-$courserdatas{$cid.'.last_cache'})<240) {
2018: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2019: ':resourcedata',$chome);
2020: if ($reply!~/^error\:/) {
2021: $courserdatas{$cid}=$reply;
2022: $courserdatas{$cid.'.last_cache'}=time;
2023: }
2024: }
2025: foreach (split(/\&/,$courserdatas{$cid})) {
2026: my ($name,$value)=split(/\=/,$_);
2027: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2028: &Apache::lonnet::unescape($value);
2029: }
2030: # --------------------------------------------------- Get userdata (if present)
2031: unless
2032: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2033: my $reply=
2034: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2035: if ($reply!~/^error\:/) {
2036: $userrdatas{$uname.'___'.$udom}=$reply;
2037: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2038: }
2039: }
2040: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2041: my ($name,$value)=split(/\=/,$_);
2042: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2043: &Apache::lonnet::unescape($value);
2044: }
2045: }
2046: # ----------------- now courseopt, useropt initialized for this user and course
2047: # (used by parmval)
2048:
2049: #
2050: # Load keys for this assessment only
2051: #
2052: my %thisassess=();
2053: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2054:
2055: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2056: $thisassess{$_}=1;
2057: }
2058: #
2059: # Load parameters
2060: #
2061: my %c=();
2062:
2063: if (tie(%parmhash,'GDBM_File',
2064: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
2065: my %f=&getformulas($safeeval);
2066: foreach (keys(%f)) {
2067: if ($_=~/^A/) {
2068: unless ($f{$_}=~/^\!/) {
2069: if ($f{$_}=~/^parameter/) {
2070: if ($thisassess{$f{$_}}) {
2071: my $val=&parmval($f{$_},$safeeval);
2072: $c{$_}=$val;
2073: $c{$f{$_}}=$val;
2074: }
2075: } else {
2076: my $key=$f{$_};
2077: my $ckey=$key;
2078: $key=~s/^stores\_/resource\./;
2079: $key=~s/\_/\./g;
2080: $c{$_}=$returnhash{$key};
2081: $c{$ckey}=$returnhash{$key};
2082: }
2083: }
2084: }
2085: }
2086: untie(%parmhash);
2087: }
2088: &setconstants($safeeval,%c);
2089: }
2090:
2091: # --------------------------------------------------------- Various form fields
2092:
2093: sub textfield {
2094: my ($title,$name,$value)=@_;
2095: return "\n<p><b>$title:</b><br>".
2096: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2097: }
2098:
2099: sub hiddenfield {
2100: my ($name,$value)=@_;
2101: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2102: }
2103:
2104: sub selectbox {
2105: my ($title,$name,$value,%options)=@_;
2106: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2107: foreach (sort keys(%options)) {
2108: $selout.='<option value="'.$_.'"';
2109: if ($_ eq $value) { $selout.=' selected'; }
2110: $selout.='>'.$options{$_}.'</option>';
2111: }
2112: return $selout.'</select>';
2113: }
2114:
2115: # =============================================== Update information in a sheet
2116: #
2117: # Add new users or assessments, etc.
2118: #
2119:
2120: sub updatesheet {
2121: my $safeeval=shift;
2122: my $stype=&gettype($safeeval);
2123: if ($stype eq 'classcalc') {
2124: return &updateclasssheet($safeeval);
2125: } else {
2126: return &updatestudentassesssheet($safeeval);
2127: }
2128: }
2129:
2130: # =================================================== Load the rows for a sheet
2131: #
2132: # Import the data for rows
2133: #
2134:
2135: sub loadrows {
2136: my ($safeeval,$r)=@_;
2137: my $stype=&gettype($safeeval);
2138: if ($stype eq 'classcalc') {
2139: &loadcourse($safeeval,$r);
2140: } elsif ($stype eq 'studentcalc') {
2141: &loadstudent($safeeval);
2142: } else {
2143: &loadassessment($safeeval);
2144: }
2145: }
2146:
2147: # ======================================================= Forced recalculation?
2148:
2149: sub checkthis {
2150: my ($keyname,$time)=@_;
2151: return ($time<$expiredates{$keyname});
2152: }
2153: sub forcedrecalc {
2154: my ($uname,$udom,$stype,$usymb)=@_;
2155: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2156: my $time=$oldsheets{$key.'.time'};
2157: if ($ENV{'form.forcerecalc'}) { return 1; }
2158: unless ($time) { return 1; }
2159: if ($stype eq 'assesscalc') {
2160: my $map=(split(/\_\_\_/,$usymb))[0];
2161: if (&checkthis('::assesscalc:',$time) ||
2162: &checkthis('::assesscalc:'.$map,$time) ||
2163: &checkthis('::assesscalc:'.$usymb,$time) ||
2164: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2165: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2166: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2167: return 1;
2168: }
2169: } else {
2170: if (&checkthis('::studentcalc:',$time) ||
2171: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2172: return 1;
2173: }
2174: }
2175: return 0;
2176: }
2177:
2178: # ============================================================== Export handler
2179: #
2180: # Non-interactive call from with program
2181: #
2182:
2183: sub exportsheet {
2184: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2185: my @exportarr=();
2186:
2187: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2188: $fn='default_'.$1;
2189: }
2190:
2191: #
2192: # Check if cached
2193: #
2194:
2195: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2196: my $found='';
2197:
2198: if ($oldsheets{$key}) {
2199: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2200: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2201: if ($name eq $fn) {
2202: $found=$value;
2203: }
2204: }
2205: }
2206:
2207: unless ($found) {
2208: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2209: if ($oldsheets{$key}) {
2210: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2211: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2212: if ($name eq $fn) {
2213: $found=$value;
2214: }
2215: }
2216: }
2217: }
2218: #
2219: # Check if still valid
2220: #
2221: if ($found) {
2222: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2223: $found='';
2224: }
2225: }
2226:
2227: if ($found) {
2228: #
2229: # Return what was cached
2230: #
2231: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2232:
2233: } else {
2234: #
2235: # Not cached
2236: #
2237:
2238: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2239: &readsheet($thissheet,$fn);
2240: &updatesheet($thissheet);
2241: &loadrows($thissheet);
2242: &calcsheet($thissheet);
2243: @exportarr=&exportdata($thissheet);
2244: #
2245: # Store now
2246: #
2247: my $cid=$ENV{'request.course.id'};
2248: my $current='';
2249: if ($stype eq 'studentcalc') {
2250: $current=&Apache::lonnet::reply('get:'.
2251: $ENV{'course.'.$cid.'.domain'}.':'.
2252: $ENV{'course.'.$cid.'.num'}.
2253: ':nohist_calculatedsheets:'.
2254: &Apache::lonnet::escape($key),
2255: $ENV{'course.'.$cid.'.home'});
2256: } else {
2257: $current=&Apache::lonnet::reply('get:'.
2258: &getudom($thissheet).':'.
2259: &getuname($thissheet).
2260: ':nohist_calculatedsheets_'.
2261: $ENV{'request.course.id'}.':'.
2262: &Apache::lonnet::escape($key),
2263: &getuhome($thissheet));
2264:
2265: }
2266: my %currentlystored=();
2267: unless ($current=~/^error\:/) {
2268: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2269: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2270: $currentlystored{$name}=$value;
2271: }
2272: }
2273: $currentlystored{$fn}=join('___;___',@exportarr);
2274:
2275: my $newstore='';
2276: foreach (keys(%currentlystored)) {
2277: if ($newstore) { $newstore.='___&___'; }
2278: $newstore.=$_.'___=___'.$currentlystored{$_};
2279: }
2280: my $now=time;
2281: if ($stype eq 'studentcalc') {
2282: &Apache::lonnet::reply('put:'.
2283: $ENV{'course.'.$cid.'.domain'}.':'.
2284: $ENV{'course.'.$cid.'.num'}.
2285: ':nohist_calculatedsheets:'.
2286: &Apache::lonnet::escape($key).'='.
2287: &Apache::lonnet::escape($newstore).'&'.
2288: &Apache::lonnet::escape($key).'.time='.$now,
2289: $ENV{'course.'.$cid.'.home'});
2290: } else {
2291: &Apache::lonnet::reply('put:'.
2292: &getudom($thissheet).':'.
2293: &getuname($thissheet).
2294: ':nohist_calculatedsheets_'.
2295: $ENV{'request.course.id'}.':'.
2296: &Apache::lonnet::escape($key).'='.
2297: &Apache::lonnet::escape($newstore).'&'.
2298: &Apache::lonnet::escape($key).'.time='.$now,
2299: &getuhome($thissheet));
2300: }
2301: }
2302: return @exportarr;
2303: }
2304: # ============================================================ Expiration Dates
2305: #
2306: # Load previously cached student spreadsheets for this course
2307: #
2308:
2309: sub expirationdates {
2310: undef %expiredates;
2311: my $cid=$ENV{'request.course.id'};
2312: my $reply=&Apache::lonnet::reply('dump:'.
2313: $ENV{'course.'.$cid.'.domain'}.':'.
2314: $ENV{'course.'.$cid.'.num'}.
2315: ':nohist_expirationdates',
2316: $ENV{'course.'.$cid.'.home'});
2317: unless ($reply=~/^error\:/) {
2318: foreach (split(/\&/,$reply)) {
2319: my ($name,$value)=split(/\=/,$_);
2320: $expiredates{&Apache::lonnet::unescape($name)}
2321: =&Apache::lonnet::unescape($value);
2322: }
2323: }
2324: }
2325:
2326: # ===================================================== Calculated sheets cache
2327: #
2328: # Load previously cached student spreadsheets for this course
2329: #
2330:
2331: sub cachedcsheets {
2332: my $cid=$ENV{'request.course.id'};
2333: my $reply=&Apache::lonnet::reply('dump:'.
2334: $ENV{'course.'.$cid.'.domain'}.':'.
2335: $ENV{'course.'.$cid.'.num'}.
2336: ':nohist_calculatedsheets',
2337: $ENV{'course.'.$cid.'.home'});
2338: unless ($reply=~/^error\:/) {
2339: foreach ( split(/\&/,$reply)) {
2340: my ($name,$value)=split(/\=/,$_);
2341: $oldsheets{&Apache::lonnet::unescape($name)}
2342: =&Apache::lonnet::unescape($value);
2343: }
2344: }
2345: }
2346:
2347: # ===================================================== Calculated sheets cache
2348: #
2349: # Load previously cached assessment spreadsheets for this student
2350: #
2351:
2352: sub cachedssheets {
2353: my ($sname,$sdom,$shome)=@_;
2354: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2355: my $cid=$ENV{'request.course.id'};
2356: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2357: ':nohist_calculatedsheets_'.
2358: $ENV{'request.course.id'},
2359: $shome);
2360: unless ($reply=~/^error\:/) {
2361: foreach ( split(/\&/,$reply)) {
2362: my ($name,$value)=split(/\=/,$_);
2363: $oldsheets{&Apache::lonnet::unescape($name)}
2364: =&Apache::lonnet::unescape($value);
2365: }
2366: }
2367: $loadedcaches{$sname.'_'.$sdom}=1;
2368: }
2369: }
2370:
2371: # ===================================================== Calculated sheets cache
2372: #
2373: # Load previously cached assessment spreadsheets for this student
2374: #
2375:
2376: # ================================================================ Main handler
2377: #
2378: # Interactive call to screen
2379: #
2380: #
2381:
2382:
2383: sub handler {
2384: my $r=shift;
2385:
2386: if ($r->header_only) {
2387: $r->content_type('text/html');
2388: $r->send_http_header;
2389: return OK;
2390: }
2391:
2392: # ---------------------------------------------------- Global directory configs
2393:
2394: $includedir=$r->dir_config('lonIncludes');
2395: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2396:
2397: # ----------------------------------------------------- Needs to be in a course
2398:
2399: if ($ENV{'request.course.fn'}) {
2400:
2401: # --------------------------- Get query string for limited number of parameters
2402:
2403: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2404: ['uname','udom','usymb','ufn']);
2405:
2406: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2407: $ENV{'form.ufn'}='default_'.$1;
2408: }
2409:
2410: # -------------------------------------- Interactive loading of specific sheet?
2411: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2412: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2413: }
2414: # ------------------------------------------- Nothing there? Must be login user
2415:
2416: my $aname;
2417: my $adom;
2418:
2419: unless ($ENV{'form.uname'}) {
2420: $aname=$ENV{'user.name'};
2421: $adom=$ENV{'user.domain'};
2422: } else {
2423: $aname=$ENV{'form.uname'};
2424: $adom=$ENV{'form.udom'};
2425: }
2426:
2427: # ------------------------------------------------------------------- Open page
2428:
2429: $r->content_type('text/html');
2430: $r->header_out('Cache-control','no-cache');
2431: $r->header_out('Pragma','no-cache');
2432: $r->send_http_header;
2433:
2434: # --------------------------------------------------------------- Screen output
2435:
2436: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2437: $r->print(<<ENDSCRIPT);
2438: <script language="JavaScript">
2439:
2440: function celledit(cn,cf) {
2441: var cnf=prompt(cn,cf);
2442: if (cnf!=null) {
2443: document.sheet.unewfield.value=cn;
2444: document.sheet.unewformula.value=cnf;
2445: document.sheet.submit();
2446: }
2447: }
2448:
2449: function changesheet(cn) {
2450: document.sheet.unewfield.value=cn;
2451: document.sheet.unewformula.value='changesheet';
2452: document.sheet.submit();
2453: }
2454:
2455: </script>
2456: ENDSCRIPT
2457: $r->print('</head><body bgcolor="#FFFFFF">'.
2458: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2459: '<h1>LON-CAPA Spreadsheet</h1>'.
2460: '<form action="'.$r->uri.'" name=sheet method=post>'.
2461: &hiddenfield('uname',$ENV{'form.uname'}).
2462: &hiddenfield('udom',$ENV{'form.udom'}).
2463: &hiddenfield('usymb',$ENV{'form.usymb'}).
2464: &hiddenfield('unewfield','').
2465: &hiddenfield('unewformula',''));
2466:
2467: # ---------------------- Make sure that this gets out, even if user hits "stop"
2468:
2469: $r->rflush();
2470:
2471: # ---------------------------------------------------------------- Full recalc?
2472:
2473:
2474: if ($ENV{'form.forcerecalc'}) {
2475: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2476: undef %spreadsheets;
2477: undef %courserdatas;
2478: undef %userrdatas;
2479: undef %defaultsheets;
2480: undef %updatedata;
2481: }
2482:
2483: # ---------------------------------------- Read new sheet or modified worksheet
2484:
2485: $r->uri=~/\/(\w+)$/;
2486:
2487: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2488:
2489: # ------------------------ If a new formula had been entered, go from work copy
2490:
2491: if ($ENV{'form.unewfield'}) {
2492: $r->print('<h2>Modified Workcopy</h2>');
2493: $ENV{'form.unewformula'}=~s/\'/\"/g;
2494: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2495: $ENV{'form.unewformula'}.'<p>');
2496: &setfilename($asheet,$ENV{'form.ufn'});
2497: &tmpread($asheet,
2498: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2499:
2500: } elsif ($ENV{'form.saveas'}) {
2501: &setfilename($asheet,$ENV{'form.ufn'});
2502: &tmpread($asheet);
2503: } else {
2504: &readsheet($asheet,$ENV{'form.ufn'});
2505: }
2506:
2507: # -------------------------------------------------- Print out user information
2508:
2509: unless (&gettype($asheet) eq 'classcalc') {
2510: $r->print('<p><b>User:</b> '.&getuname($asheet).
2511: '<br><b>Domain:</b> '.&getudom($asheet));
2512: if (&getcsec($asheet) eq '-1') {
2513: $r->print('<h3><font color=red>'.
2514: 'Not a student in this course</font></h3>');
2515: } else {
2516: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2517: }
2518: if ($ENV{'form.usymb'}) {
2519: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2520: }
2521: }
2522:
2523: # ---------------------------------------------------------------- Course title
2524:
2525: $r->print('<h1>'.
2526: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2527: '</h1><h3>'.localtime().'</h3>');
2528:
2529: # ---------------------------------------------------- See if user can see this
2530:
2531: if ((&gettype($asheet) eq 'classcalc') ||
2532: (&getuname($asheet) ne $ENV{'user.name'}) ||
2533: (&getudom($asheet) ne $ENV{'user.domain'})) {
2534: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2535: $r->print(
2536: '<h1>Access Permission Denied</h1></form></body></html>');
2537: return OK;
2538: }
2539: }
2540:
2541: # ---------------------------------------------------------- Additional options
2542:
2543: $r->print(
2544: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2545: );
2546: if (&gettype($asheet) eq 'assesscalc') {
2547: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2548: &getuname($asheet).
2549: '&udom='.&getudom($asheet).
2550: '">Level up: Student Sheet</a></font><p>');
2551: }
2552:
2553: if ((&gettype($asheet) eq 'studentcalc') &&
2554: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2555: $r->print (
2556: '<p><font size=+2><a href="/adm/classcalc">'.
2557: 'Level up: Course Sheet</a></font><p>');
2558: }
2559:
2560:
2561: # ----------------------------------------------------------------- Save dialog
2562:
2563:
2564: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2565: my $fname=$ENV{'form.ufn'};
2566: $fname=~s/\_[^\_]+$//;
2567: if ($fname eq 'default') { $fname='course_default'; }
2568: $r->print('<input type=submit name=saveas value="Save as ...">'.
2569: '<input type=text size=20 name=newfn value="'.$fname.
2570: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2571: }
2572:
2573: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2574:
2575: # ----------------------------------------------------------------- Load dialog
2576: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2577: $r->print('<p><input type=submit name=load value="Load ...">'.
2578: '<select name="loadthissheet">'.
2579: '<option name="default">Default</option>');
2580: foreach (&othersheets($asheet,&gettype($asheet))) {
2581: $r->print('<option name="'.$_.'"');
2582: if ($ENV{'form.ufn'} eq $_) {
2583: $r->print(' selected');
2584: }
2585: $r->print('>'.$_.'</option>');
2586: }
2587: $r->print('</select><p>');
2588: if (&gettype($asheet) eq 'studentcalc') {
2589: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2590: }
2591: }
2592:
2593: # --------------------------------------------------------------- Cached sheets
2594:
2595: &expirationdates();
2596:
2597: undef %oldsheets;
2598: undef %loadedcaches;
2599:
2600: if (&gettype($asheet) eq 'classcalc') {
2601: $r->print("Loading previously calculated student sheets ...<br>\n");
2602: $r->rflush();
2603: &cachedcsheets();
2604: } elsif (&gettype($asheet) eq 'studentcalc') {
2605: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2606: $r->rflush();
2607: &cachedssheets(&getuname($asheet),&getudom($asheet),
2608: &getuhome($asheet));
2609: }
2610:
2611: # ----------------------------------------------------- Update sheet, load rows
2612:
2613: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2614: $r->rflush();
2615:
2616: &updatesheet($asheet);
2617:
2618: $r->print("Updated rows, loading row data ...<br>\n");
2619: $r->rflush();
2620:
2621: &loadrows($asheet,$r);
2622:
2623: $r->print("Loaded row data, calculating sheet ...<br>\n");
2624: $r->rflush();
2625:
2626: my $calcoutput=&calcsheet($asheet);
2627: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2628:
2629: # ---------------------------------------------------- See if something to save
2630:
2631: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2632: my $fname='';
2633: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2634: $fname=~s/\W/\_/g;
2635: if ($fname eq 'default') { $fname='course_default'; }
2636: $fname.='_'.&gettype($asheet);
2637: &setfilename($asheet,$fname);
2638: $ENV{'form.ufn'}=$fname;
2639: $r->print('<p>Saving spreadsheet: '.
2640: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2641: }
2642: }
2643:
2644: # ------------------------------------------------ Write the modified worksheet
2645:
2646: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2647:
2648: &tmpwrite($asheet);
2649:
2650: if (&gettype($asheet) eq 'studentcalc') {
2651: $r->print('<br>Show rows with empty A column: ');
2652: } else {
2653: $r->print('<br>Show empty rows: ');
2654: }
2655:
2656: $r->print(&hiddenfield('userselhidden','true').
2657: '<input type=checkbox name=showall onClick="submit()"');
2658:
2659: if ($ENV{'form.showall'}) {
2660: $r->print(' checked');
2661: } else {
2662: unless ($ENV{'form.userselhidden'}) {
2663: unless
2664: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2665: $r->print(' checked');
2666: $ENV{'form.showall'}=1;
2667: }
2668: }
2669: }
2670: $r->print('>');
2671:
2672: if (&gettype($asheet) eq 'classcalc') {
2673: $r->print(
2674: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2675: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2676: $r->print('>');
2677: }
2678: # ------------------------------------------------------------- Print out sheet
2679:
2680: &outsheet($r,$asheet);
2681: $r->print('</form></body></html>');
2682:
2683: # ------------------------------------------------------------------------ Done
2684: } else {
2685: # ----------------------------- Not in a course, or not allowed to modify parms
2686: $ENV{'user.error.msg'}=
2687: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2688: return HTTP_NOT_ACCEPTABLE;
2689: }
2690: return OK;
2691:
2692: }
2693:
2694: 1;
2695: __END__
2696:
2697:
2698:
2699:
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