1: #
2: # $Id: lonspreadsheet.pm,v 1.92 2002/07/02 21:57:38 www 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: if ($rl{$usy}) {
867: $cols[0]=$rl{$usy}.'<br>'.
868: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
869: ')"><option name="default">Default</option>';
870: } else { $cols[0]=''; }
871: foreach (@os) {
872: $cols[0].='<option name="'.$_.'"';
873: if ($ufn eq $_) {
874: $cols[0].=' selected';
875: }
876: $cols[0].='>'.$_.'</option>';
877: }
878: $cols[0].='</select>';
879: } else {
880: $cols[0]='<b><font size=+1>Export</font></b>';
881: }
882: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
885: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
886: my $fm=$f{$_.$n};
887: $fm=~s/[\'\"]/\&\#34;/g;
888: push(@cols,"'$_$n','$fm'".'___eq___'.$v{$_.$n});
889: }
890: return @cols;
891: }
892:
893: sub outrow {
894: my $n=shift;
895: my @cols=();
896: if ($n) {
897: $cols[0]=$rl{$f{'A'.$n}};
898: } else {
899: $cols[0]='<b><font size=+1>Export</font></b>';
900: }
901: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
904: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
905: my $fm=$f{$_.$n};
906: $fm=~s/[\'\"]/\&\#34;/g;
907: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
908: }
909: return @cols;
910: }
911:
912: sub exportrowa {
913: my @exportarray=();
914: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
915: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
916: $exportarray[$#exportarray+1]=$v{$_.'0'};
917: }
918: return @exportarray;
919: }
920:
921: # ------------------------------------------- End of "Inside of the safe space"
922: ENDDEFS
923: $safeeval->reval($code);
924: return $safeeval;
925: }
926:
927: # ------------------------------------------------ Add or change formula values
928:
929: sub setformulas {
930: my ($safeeval,%f)=@_;
931: %{$safeeval->varglob('f')}=%f;
932: }
933:
934: # ------------------------------------------------ Add or change formula values
935:
936: sub setconstants {
937: my ($safeeval,%c)=@_;
938: %{$safeeval->varglob('c')}=%c;
939: }
940:
941: # --------------------------------------------- Set names of other spreadsheets
942:
943: sub setothersheets {
944: my ($safeeval,@os)=@_;
945: @{$safeeval->varglob('os')}=@os;
946: }
947:
948: # ------------------------------------------------ Add or change formula values
949:
950: sub setrowlabels {
951: my ($safeeval,%rl)=@_;
952: %{$safeeval->varglob('rl')}=%rl;
953: }
954:
955: # ------------------------------------------------------- Calculate spreadsheet
956:
957: sub calcsheet {
958: my $safeeval=shift;
959: $safeeval->reval('&calc();');
960: }
961:
962: # ------------------------------------------------------------------ Get values
963:
964: sub getvalues {
965: my $safeeval=shift;
966: return $safeeval->reval('%v');
967: }
968:
969: # ---------------------------------------------------------------- Get formulas
970:
971: sub getformulas {
972: my $safeeval=shift;
973: return %{$safeeval->varglob('f')};
974: }
975:
976: # -------------------------------------------------------------------- Get type
977:
978: sub gettype {
979: my $safeeval=shift;
980: return $safeeval->reval('$sheettype');
981: }
982:
983: # ------------------------------------------------------------------ Set maxrow
984:
985: sub setmaxrow {
986: my ($safeeval,$row)=@_;
987: $safeeval->reval('$maxrow='.$row.';');
988: }
989:
990: # ------------------------------------------------------------------ Get maxrow
991:
992: sub getmaxrow {
993: my $safeeval=shift;
994: return $safeeval->reval('$maxrow');
995: }
996:
997: # ---------------------------------------------------------------- Set filename
998:
999: sub setfilename {
1000: my ($safeeval,$fn)=@_;
1001: $safeeval->reval('$filename="'.$fn.'";');
1002: }
1003:
1004: # ---------------------------------------------------------------- Get filename
1005:
1006: sub getfilename {
1007: my $safeeval=shift;
1008: return $safeeval->reval('$filename');
1009: }
1010:
1011: # --------------------------------------------------------------- Get course ID
1012:
1013: sub getcid {
1014: my $safeeval=shift;
1015: return $safeeval->reval('$cid');
1016: }
1017:
1018: # --------------------------------------------------------- Get course filename
1019:
1020: sub getcfn {
1021: my $safeeval=shift;
1022: return $safeeval->reval('$cfn');
1023: }
1024:
1025: # ----------------------------------------------------------- Get course number
1026:
1027: sub getcnum {
1028: my $safeeval=shift;
1029: return $safeeval->reval('$cnum');
1030: }
1031:
1032: # ------------------------------------------------------------- Get course home
1033:
1034: sub getchome {
1035: my $safeeval=shift;
1036: return $safeeval->reval('$chome');
1037: }
1038:
1039: # ----------------------------------------------------------- Get course domain
1040:
1041: sub getcdom {
1042: my $safeeval=shift;
1043: return $safeeval->reval('$cdom');
1044: }
1045:
1046: # ---------------------------------------------------------- Get course section
1047:
1048: sub getcsec {
1049: my $safeeval=shift;
1050: return $safeeval->reval('$csec');
1051: }
1052:
1053: # --------------------------------------------------------------- Get user name
1054:
1055: sub getuname {
1056: my $safeeval=shift;
1057: return $safeeval->reval('$uname');
1058: }
1059:
1060: # ------------------------------------------------------------- Get user domain
1061:
1062: sub getudom {
1063: my $safeeval=shift;
1064: return $safeeval->reval('$udom');
1065: }
1066:
1067: # --------------------------------------------------------------- Get user home
1068:
1069: sub getuhome {
1070: my $safeeval=shift;
1071: return $safeeval->reval('$uhome');
1072: }
1073:
1074: # -------------------------------------------------------------------- Get symb
1075:
1076: sub getusymb {
1077: my $safeeval=shift;
1078: return $safeeval->reval('$usymb');
1079: }
1080:
1081: # ------------------------------------------------------------- Export of A-row
1082:
1083: sub exportdata {
1084: my $safeeval=shift;
1085: return $safeeval->reval('&exportrowa()');
1086: }
1087:
1088:
1089: # ========================================================== End of Spreadsheet
1090: # =============================================================================
1091:
1092: #
1093: # Procedures for screen output
1094: #
1095: # --------------------------------------------- Produce output row n from sheet
1096:
1097: sub rown {
1098: my ($safeeval,$n)=@_;
1099: my $defaultbg;
1100: my $rowdata='';
1101: my $dataflag=0;
1102: unless ($n eq '-') {
1103: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1104: } else {
1105: $defaultbg='#E0FF';
1106: }
1107: unless ($ENV{'form.showcsv'}) {
1108: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1109: } else {
1110: $rowdata.="\n".'"'.$n.'"';
1111: }
1112: my $showf=0;
1113: my $proc;
1114: my $maxred;
1115: my $sheettype=&gettype($safeeval);
1116: if ($sheettype eq 'studentcalc') {
1117: $proc='&outrowassess';
1118: $maxred=26;
1119: } else {
1120: $proc='&outrow';
1121: }
1122: if ($sheettype eq 'assesscalc') {
1123: $maxred=1;
1124: } else {
1125: $maxred=26;
1126: }
1127: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1128: foreach ($safeeval->reval($proc.'('.$n.')')) {
1129: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1130: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1131: if ((($vl ne '') || ($vl eq '0')) &&
1132: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1133: if ($showf==0) { $vl=$_; }
1134: unless ($ENV{'form.showcsv'}) {
1135: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1136: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1137: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1138: if ($vl eq '') {
1139: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1140: }
1141: $rowdata.=
1142: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
1143: '</a></td>';
1144: } else {
1145: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1146: }
1147: } else {
1148: $rowdata.=',"'.$vl.'"';
1149: }
1150: $showf++;
1151: } # End of foreach($safeval...)
1152: if ($ENV{'form.showall'} || ($dataflag)) {
1153: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1154: } else {
1155: return '';
1156: }
1157: }
1158:
1159: # ------------------------------------------------------------- Print out sheet
1160:
1161: sub outsheet {
1162: my ($r,$safeeval)=@_;
1163: my $maxred;
1164: my $realm;
1165: if (&gettype($safeeval) eq 'assesscalc') {
1166: $maxred=1;
1167: $realm='Assessment';
1168: } elsif (&gettype($safeeval) eq 'studentcalc') {
1169: $maxred=26;
1170: $realm='User';
1171: } else {
1172: $maxred=26;
1173: $realm='Course';
1174: }
1175: my $maxyellow=52-$maxred;
1176: my $tabledata;
1177: unless ($ENV{'form.showcsv'}) {
1178: $tabledata=
1179: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1180: $realm.'</font></th>'.
1181: '<td bgcolor=#FFDDDD colspan='.$maxred.
1182: '><b><font size=+1>Import</font></b></td>'.
1183: '<td colspan='.$maxyellow.
1184: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1185: my $showf=0;
1186: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1189: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1190: $showf++;
1191: if ($showf<=$maxred) {
1192: $tabledata.='<td bgcolor="#FFDDDD">';
1193: } else {
1194: $tabledata.='<td>';
1195: }
1196: $tabledata.="<b><font size=+1>$_</font></b></td>";
1197: }
1198: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1199: } else { $tabledata='<pre>'; }
1200:
1201: $r->print($tabledata);
1202:
1203: my $row;
1204: my $maxrow=&getmaxrow($safeeval);
1205:
1206: my @sortby=();
1207: my @sortidx=();
1208: for ($row=1;$row<=$maxrow;$row++) {
1209: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1210: $sortidx[$row-1]=$row-1;
1211: }
1212: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1213:
1214: my $what='Student';
1215: if (&gettype($safeeval) eq 'assesscalc') {
1216: $what='Item';
1217: } elsif (&gettype($safeeval) eq 'studentcalc') {
1218: $what='Assessment';
1219: }
1220:
1221: my $n=0;
1222: for ($row=0;$row<$maxrow;$row++) {
1223: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1224: if ($thisrow) {
1225: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1226: $r->print("</table>\n<br>\n");
1227: $r->rflush();
1228: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1229: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1232: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1233: $r->print('<td>'.$_.'</td>');
1234: }
1235: $r->print('</tr>');
1236: }
1237: $n++;
1238: $r->print($thisrow);
1239: }
1240: }
1241: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1242: }
1243:
1244: #
1245: # ----------------------------------------------- Read list of available sheets
1246: #
1247: sub othersheets {
1248: my ($safeeval,$stype)=@_;
1249: #
1250: my $cnum=&getcnum($safeeval);
1251: my $cdom=&getcdom($safeeval);
1252: my $chome=&getchome($safeeval);
1253: #
1254: my @alternatives=();
1255: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1256: my ($tmp) = keys(%results);
1257: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1258: @alternatives = sort (keys(%results));
1259: }
1260: return @alternatives;
1261: }
1262:
1263:
1264: #
1265: # -------------------------------------- Parse a spreadsheet
1266: #
1267: sub parse_sheet {
1268: # $sheetxml is a scalar reference or a scalar
1269: my ($sheetxml) = @_;
1270: if (! ref($sheetxml)) {
1271: my $tmp = $sheetxml;
1272: $sheetxml = \$tmp;
1273: }
1274: my %f;
1275: my $parser=HTML::TokeParser->new($sheetxml);
1276: my $token;
1277: while ($token=$parser->get_token) {
1278: if ($token->[0] eq 'S') {
1279: if ($token->[1] eq 'field') {
1280: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1281: $parser->get_text('/field');
1282: }
1283: if ($token->[1] eq 'template') {
1284: $f{'template_'.$token->[2]->{'col'}}=
1285: $parser->get_text('/template');
1286: }
1287: }
1288: }
1289: return \%f;
1290: }
1291:
1292: #
1293: # -------------------------------------- Read spreadsheet formulas for a course
1294: #
1295:
1296: sub readsheet {
1297: my ($safeeval,$fn)=@_;
1298: my $stype=&gettype($safeeval);
1299: my $cnum=&getcnum($safeeval);
1300: my $cdom=&getcdom($safeeval);
1301: my $chome=&getchome($safeeval);
1302:
1303: if (! defined($fn)) {
1304: # There is no filename. Look for defaults in course and global, cache
1305: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1306: my %tmphash = &Apache::lonnet::get('environment',
1307: ['spreadsheet_default_'.$stype],
1308: $cdom,$cnum);
1309: my ($tmp) = keys(%tmphash);
1310: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1311: $fn = 'default_'.$stype;
1312: } else {
1313: $fn = $tmphash{'spreadsheet_default_'.$stype};
1314: }
1315: unless (($fn) && ($fn!~/^error\:/)) {
1316: $fn='default_'.$stype;
1317: }
1318: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1319: }
1320: }
1321:
1322: # ---------------------------------------------------------- fn now has a value
1323:
1324: &setfilename($safeeval,$fn);
1325:
1326: # ------------------------------------------------------ see if sheet is cached
1327: my $fstring='';
1328: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1329: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1330: } else {
1331:
1332: # ---------------------------------------------------- Not cached, need to read
1333:
1334: my %f=();
1335:
1336: if ($fn=~/^default\_/) {
1337: my $sheetxml='';
1338: my $fh;
1339: my $dfn=$fn;
1340: $dfn=~s/\_/\./g;
1341: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1342: $sheetxml=join('',<$fh>);
1343: } else {
1344: $sheetxml='<field row="0" col="A">"Error"</field>';
1345: }
1346: %f=%{&parse_sheet(\$sheetxml)};
1347: } elsif($fn=~/\/*\.spreadsheet$/) {
1348: my $sheetxml=&Apache::lonnet::getfile
1349: (&Apache::lonnet::filelocation('',$fn));
1350: if ($sheetxml == -1) {
1351: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1352: .$fn.'"</field>';
1353: }
1354: %f=%{&parse_sheet(\$sheetxml)};
1355: } else {
1356: my $sheet='';
1357: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1358: my ($tmp) = keys(%tmphash);
1359: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1360: foreach (keys(%tmphash)) {
1361: $f{$_}=$tmphash{$_};
1362: }
1363: }
1364: }
1365: # --------------------------------------------------------------- Cache and set
1366: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1367: &setformulas($safeeval,%f);
1368: }
1369: }
1370:
1371: # -------------------------------------------------------- Make new spreadsheet
1372:
1373: sub makenewsheet {
1374: my ($uname,$udom,$stype,$usymb)=@_;
1375: my $safeeval=initsheet($stype);
1376: $safeeval->reval(
1377: '$uname="'.$uname.
1378: '";$udom="'.$udom.
1379: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1380: '";$sheettype="'.$stype.
1381: '";$usymb="'.$usymb.
1382: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1383: $ENV{'request.course.id'}).
1384: '";$cid="'.$ENV{'request.course.id'}.
1385: '";$cfn="'.$ENV{'request.course.fn'}.
1386: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1387: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1388: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1389: return $safeeval;
1390: }
1391:
1392: # ------------------------------------------------------------ Save spreadsheet
1393:
1394: sub writesheet {
1395: my ($safeeval,$makedef)=@_;
1396: my $cid=&getcid($safeeval);
1397: if (&Apache::lonnet::allowed('opa',$cid)) {
1398: my %f=&getformulas($safeeval);
1399: my $stype=&gettype($safeeval);
1400: my $cnum=&getcnum($safeeval);
1401: my $cdom=&getcdom($safeeval);
1402: my $chome=&getchome($safeeval);
1403: my $fn=&getfilename($safeeval);
1404:
1405: # ------------------------------------------------------------- Cache new sheet
1406: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1407: # ----------------------------------------------------------------- Write sheet
1408: my $sheetdata='';
1409: foreach (keys(%f)) {
1410: unless ($f{$_} eq 'import') {
1411: $sheetdata.=&Apache::lonnet::escape($_).'='.
1412: &Apache::lonnet::escape($f{$_}).'&';
1413: }
1414: }
1415: $sheetdata=~s/\&$//;
1416: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1417: $sheetdata,$chome);
1418: if ($reply eq 'ok') {
1419: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1420: $stype.'_spreadsheets:'.
1421: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1422: $ENV{'user.domain'},
1423: $chome);
1424: if ($reply eq 'ok') {
1425: if ($makedef) {
1426: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1427: ':environment:spreadsheet_default_'.$stype.'='.
1428: &Apache::lonnet::escape($fn),
1429: $chome);
1430: } else {
1431: return $reply;
1432: }
1433: } else {
1434: return $reply;
1435: }
1436: } else {
1437: return $reply;
1438: }
1439: }
1440: return 'unauthorized';
1441: }
1442:
1443: # ----------------------------------------------- Make a temp copy of the sheet
1444: # "Modified workcopy" - interactive only
1445: #
1446:
1447: sub tmpwrite {
1448: my $safeeval=shift;
1449: my $fn=$ENV{'user.name'}.'_'.
1450: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1451: &getfilename($safeeval);
1452: $fn=~s/\W/\_/g;
1453: $fn=$tmpdir.$fn.'.tmp';
1454: my $fh;
1455: if ($fh=Apache::File->new('>'.$fn)) {
1456: print $fh join("\n",&getformulas($safeeval));
1457: }
1458: }
1459:
1460: # ---------------------------------------------------------- Read the temp copy
1461:
1462: sub tmpread {
1463: my ($safeeval,$nfield,$nform)=@_;
1464: my $fn=$ENV{'user.name'}.'_'.
1465: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1466: &getfilename($safeeval);
1467: $fn=~s/\W/\_/g;
1468: $fn=$tmpdir.$fn.'.tmp';
1469: my $fh;
1470: my %fo=();
1471: my $countrows=0;
1472: if ($fh=Apache::File->new($fn)) {
1473: my $name;
1474: while ($name=<$fh>) {
1475: chomp($name);
1476: my $value=<$fh>;
1477: chomp($value);
1478: $fo{$name}=$value;
1479: $countrows++;
1480: }
1481: }
1482: if ($nform eq 'changesheet') {
1483: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1484: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1485: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1486: }
1487: } elsif ($nfield eq 'insertrow') {
1488: if ($nform eq 'top') {
1489: $fo{'A'.$countrows}='AAAAA_'.$countrows;
1490: } else {
1491: $fo{'A'.$countrows}='zzzzz_'.$countrows;
1492: }
1493: } else {
1494: if ($nfield) { $fo{$nfield}=$nform; }
1495: }
1496: &setformulas($safeeval,%fo);
1497: }
1498:
1499: # ================================================================== Parameters
1500: # -------------------------------------------- Figure out a cascading parameter
1501: #
1502: # For this function to work
1503: #
1504: # * parmhash needs to be tied
1505: # * courseopt and useropt need to be initialized for this user and course
1506: #
1507:
1508: sub parmval {
1509: my ($what,$safeeval)=@_;
1510: my $cid=&getcid($safeeval);
1511: my $csec=&getcsec($safeeval);
1512: my $uname=&getuname($safeeval);
1513: my $udom=&getudom($safeeval);
1514: my $symb=&getusymb($safeeval);
1515:
1516: unless ($symb) { return ''; }
1517: my $result='';
1518:
1519: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1520: # ----------------------------------------------------- Cascading lookup scheme
1521: my $rwhat=$what;
1522: $what=~s/^parameter\_//;
1523: $what=~s/\_([^\_]+)$/\.$1/;
1524:
1525: my $symbparm=$symb.'.'.$what;
1526: my $mapparm=$mapname.'___(all).'.$what;
1527: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1528:
1529: my $seclevel=
1530: $usercourseprefix.'.['.
1531: $csec.'].'.$what;
1532: my $seclevelr=
1533: $usercourseprefix.'.['.
1534: $csec.'].'.$symbparm;
1535: my $seclevelm=
1536: $usercourseprefix.'.['.
1537: $csec.'].'.$mapparm;
1538:
1539: my $courselevel=
1540: $usercourseprefix.'.'.$what;
1541: my $courselevelr=
1542: $usercourseprefix.'.'.$symbparm;
1543: my $courselevelm=
1544: $usercourseprefix.'.'.$mapparm;
1545:
1546: # ---------------------------------------------------------- fourth, check user
1547:
1548: if ($uname) {
1549:
1550: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1551:
1552: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1553:
1554: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1555:
1556: }
1557:
1558: # --------------------------------------------------------- third, check course
1559:
1560: if ($csec) {
1561:
1562: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1563:
1564: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1565:
1566: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1567:
1568: }
1569:
1570: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1571:
1572: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1573:
1574: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1575:
1576: # ----------------------------------------------------- second, check map parms
1577:
1578: my $thisparm=$parmhash{$symbparm};
1579: if ($thisparm) { return $thisparm; }
1580:
1581: # -------------------------------------------------------- first, check default
1582:
1583: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1584:
1585: }
1586:
1587: # ---------------------------------------------- Update rows for course listing
1588:
1589: sub updateclasssheet {
1590: my $safeeval=shift;
1591: my $cnum=&getcnum($safeeval);
1592: my $cdom=&getcdom($safeeval);
1593: my $cid=&getcid($safeeval);
1594: my $chome=&getchome($safeeval);
1595:
1596: # ---------------------------------------------- Read class list and row labels
1597:
1598: my $classlst=&Apache::lonnet::reply
1599: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1600: my %currentlist=();
1601: my $now=time;
1602: unless ($classlst=~/^error\:/) {
1603: foreach (split(/\&/,$classlst)) {
1604: my ($name,$value)=split(/\=/,$_);
1605: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1606: my $active=1;
1607: if (($end) && ($now>$end)) { $active=0; }
1608: if ($active) {
1609: my $rowlabel='';
1610: $name=&Apache::lonnet::unescape($name);
1611: my ($sname,$sdom)=split(/\:/,$name);
1612: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1613: if ($ssec==-1) {
1614: unless ($ENV{'form.showcsv'}) {
1615: $rowlabel='<font color=red>Data not available: '.$name.
1616: '</font>';
1617: } else {
1618: $rowlabel='ERROR","'.$name.
1619: '","Data not available","","","';
1620: }
1621: } else {
1622: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1623: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1624: ':environment:firstname&middlename&lastname&generation',
1625: &Apache::lonnet::homeserver($sname,$sdom));
1626: unless ($ENV{'form.showcsv'}) {
1627: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1628: '&udom='.$sdom.'">'.
1629: $ssec.' '.$reply{$sname}.'<br>';
1630: foreach ( split(/\&/,$reply)) {
1631: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1632: }
1633: $rowlabel.='</a>';
1634: } else {
1635: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1636: my $ncount=0;
1637: foreach (split(/\&/,$reply)) {
1638: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1639: $ncount++;
1640: }
1641: unless ($ncount==4) { $rowlabel.=',""'; }
1642: $rowlabel=~s/\"$//;
1643: }
1644: }
1645: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1646: }
1647: } # end of foreach (split(/\&/,$classlst))
1648: #
1649: # -------------------- Find discrepancies between the course row table and this
1650: #
1651: my %f=&getformulas($safeeval);
1652: my $changed=0;
1653:
1654: my $maxrow=0;
1655: my %existing=();
1656:
1657: # ----------------------------------------------------------- Now obsolete rows
1658: foreach (keys(%f)) {
1659: if ($_=~/^A(\d+)/) {
1660: $maxrow=($1>$maxrow)?$1:$maxrow;
1661: $existing{$f{$_}}=1;
1662: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1663: $f{$_}='!!! Obsolete';
1664: $changed=1;
1665: }
1666: }
1667: }
1668:
1669: # -------------------------------------------------------- New and unknown keys
1670:
1671: foreach (sort keys(%currentlist)) {
1672: unless ($existing{$_}) {
1673: $changed=1;
1674: $maxrow++;
1675: $f{'A'.$maxrow}=$_;
1676: }
1677: }
1678:
1679: if ($changed) { &setformulas($safeeval,%f); }
1680:
1681: &setmaxrow($safeeval,$maxrow);
1682: &setrowlabels($safeeval,%currentlist);
1683:
1684: } else {
1685: return 'Could not access course data';
1686: }
1687: }
1688:
1689: # ----------------------------------- Update rows for student and assess sheets
1690:
1691: sub updatestudentassesssheet {
1692: my $safeeval=shift;
1693: my %bighash;
1694: my $stype=&gettype($safeeval);
1695: my %current=();
1696: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1697: # -------------------------------------------------------------------- Tie hash
1698: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1699: &GDBM_READER,0640)) {
1700: # --------------------------------------------------------- Get all assessments
1701:
1702: my %allkeys=('timestamp' =>
1703: 'Timestamp of Last Transaction<br>timestamp',
1704: 'subnumber' =>
1705: 'Number of Submissions<br>subnumber',
1706: 'tutornumber' =>
1707: 'Number of Tutor Responses<br>tutornumber',
1708: 'totalpoints' =>
1709: 'Total Points Granted<br>totalpoints');
1710:
1711: my $adduserstr='';
1712: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1713: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1714: $adduserstr='&uname='.&getuname($safeeval).
1715: '&udom='.&getudom($safeeval);
1716: }
1717:
1718: my %allassess=('_feedback' =>
1719: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1720: '">Feedback</a>',
1721: '_evaluation' =>
1722: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1723: '">Evaluation</a>',
1724: '_tutoring' =>
1725: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1726: '">Tutoring</a>',
1727: '_discussion' =>
1728: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1729: '">Discussion</a>'
1730: );
1731:
1732: foreach (keys(%bighash)) {
1733: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1734: my $mapid=$1;
1735: my $resid=$2;
1736: my $id=$mapid.'.'.$resid;
1737: my $srcf=$bighash{$_};
1738: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1739: my $symb=
1740: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1741: '___'.$resid.'___'.
1742: &Apache::lonnet::declutter($srcf);
1743: $allassess{$symb}=
1744: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1745: $bighash{'title_'.$id}.'</a>';
1746: if ($stype eq 'assesscalc') {
1747: foreach (split(/\,/,
1748: &Apache::lonnet::metadata($srcf,'keys'))) {
1749: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1750: my $key=$_;
1751: my $display=
1752: &Apache::lonnet::metadata($srcf,$key.'.display');
1753: unless ($display) {
1754: $display.=
1755: &Apache::lonnet::metadata($srcf,$key.'.name');
1756: }
1757: $display.='<br>'.$key;
1758: $allkeys{$key}=$display;
1759: }
1760: } # end of foreach
1761: }
1762: }
1763: }
1764: } # end of foreach (keys(%bighash))
1765: untie(%bighash);
1766:
1767: #
1768: # %allkeys has a list of storage and parameter displays by unikey
1769: # %allassess has a list of all resource displays by symb
1770: #
1771:
1772: if ($stype eq 'assesscalc') {
1773: %current=%allkeys;
1774: } elsif ($stype eq 'studentcalc') {
1775: %current=%allassess;
1776: }
1777: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1778: join('___;___',%current);
1779: } else {
1780: return 'Could not access course data';
1781: }
1782: # ------------------------------------------------------ Get current from cache
1783: } else {
1784: %current=split(/\_\_\_\;\_\_\_/,
1785: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1786: }
1787: # -------------------- Find discrepancies between the course row table and this
1788: #
1789: my %f=&getformulas($safeeval);
1790: my $changed=0;
1791:
1792: my $maxrow=0;
1793: my %existing=();
1794:
1795: # ----------------------------------------------------------- Now obsolete rows
1796: foreach (keys(%f)) {
1797: if ($_=~/^A(\d+)/) {
1798: $maxrow=($1>$maxrow)?$1:$maxrow;
1799: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1800: $existing{$usy}=1;
1801: unless ((defined($current{$usy})) || (!$1)) {
1802: $f{$_}='!!! Obsolete';
1803: $changed=1;
1804: } elsif ($ufn) {
1805: $current{$usy}
1806: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1807: }
1808: }
1809: }
1810:
1811: # -------------------------------------------------------- New and unknown keys
1812:
1813: foreach (keys(%current)) {
1814: unless ($existing{$_}) {
1815: $changed=1;
1816: $maxrow++;
1817: $f{'A'.$maxrow}=$_;
1818: }
1819: }
1820:
1821: if ($changed) { &setformulas($safeeval,%f); }
1822:
1823: &setmaxrow($safeeval,$maxrow);
1824: &setrowlabels($safeeval,%current);
1825:
1826: undef %current;
1827: undef %existing;
1828: }
1829:
1830: # ------------------------------------------------ Load data for one assessment
1831:
1832: sub loadstudent {
1833: my $safeeval=shift;
1834: my %c=();
1835: my %f=&getformulas($safeeval);
1836: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1837: %cachedstores=();
1838: {
1839: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1840: &getuname($safeeval).':'.
1841: &getcid($safeeval),
1842: &getuhome($safeeval));
1843: unless ($reply=~/^error\:/) {
1844: foreach ( split(/\&/,$reply)) {
1845: my ($name,$value)=split(/\=/,$_);
1846: $cachedstores{&Apache::lonnet::unescape($name)}=
1847: &Apache::lonnet::unescape($value);
1848: }
1849: }
1850: }
1851: my @assessdata=();
1852: foreach (keys(%f)) {
1853: if ($_=~/^A(\d+)/) {
1854: my $row=$1;
1855: unless (($f{$_}=~/^\!/) || ($row==0)) {
1856: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1857: @assessdata=&exportsheet(&getuname($safeeval),
1858: &getudom($safeeval),
1859: 'assesscalc',$usy,$ufn);
1860: my $index=0;
1861: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1862: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1863: if ($assessdata[$index]) {
1864: my $col=$_;
1865: if ($assessdata[$index]=~/\D/) {
1866: $c{$col.$row}="'".$assessdata[$index]."'";
1867: } else {
1868: $c{$col.$row}=$assessdata[$index];
1869: }
1870: unless ($col eq 'A') {
1871: $f{$col.$row}='import';
1872: }
1873: }
1874: $index++;
1875: }
1876: }
1877: }
1878: }
1879: $cachedassess='';
1880: undef %cachedstores;
1881: &setformulas($safeeval,%f);
1882: &setconstants($safeeval,%c);
1883: }
1884:
1885: # --------------------------------------------------- Load data for one student
1886:
1887: sub loadcourse {
1888: my ($safeeval,$r)=@_;
1889: my %c=();
1890: my %f=&getformulas($safeeval);
1891: my $total=0;
1892: foreach (keys(%f)) {
1893: if ($_=~/^A(\d+)/) {
1894: unless ($f{$_}=~/^\!/) { $total++; }
1895: }
1896: }
1897: my $now=0;
1898: my $since=time;
1899: $r->print(<<ENDPOP);
1900: <script>
1901: popwin=open('','popwin','width=400,height=100');
1902: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1903: '<h3>Spreadsheet Calculation Progress</h3>'+
1904: '<form name=popremain>'+
1905: '<input type=text size=35 name=remaining value=Starting></form>'+
1906: '</body></html>');
1907: popwin.document.close();
1908: </script>
1909: ENDPOP
1910: $r->rflush();
1911: foreach (keys(%f)) {
1912: if ($_=~/^A(\d+)/) {
1913: my $row=$1;
1914: unless (($f{$_}=~/^\!/) || ($row==0)) {
1915: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1916: 'studentcalc');
1917: undef %userrdatas;
1918: $now++;
1919: $r->print('<script>popwin.document.popremain.remaining.value="'.
1920: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1921: ' secs remaining";</script>');
1922: $r->rflush();
1923:
1924: my $index=0;
1925: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1926: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1927: if ($studentdata[$index]) {
1928: my $col=$_;
1929: if ($studentdata[$index]=~/\D/) {
1930: $c{$col.$row}="'".$studentdata[$index]."'";
1931: } else {
1932: $c{$col.$row}=$studentdata[$index];
1933: }
1934: unless ($col eq 'A') {
1935: $f{$col.$row}='import';
1936: }
1937: }
1938: $index++;
1939: }
1940: }
1941: }
1942: }
1943: &setformulas($safeeval,%f);
1944: &setconstants($safeeval,%c);
1945: $r->print('<script>popwin.close()</script>');
1946: $r->rflush();
1947: }
1948:
1949: # ------------------------------------------------ Load data for one assessment
1950:
1951: sub loadassessment {
1952: my $safeeval=shift;
1953:
1954: my $uhome=&getuhome($safeeval);
1955: my $uname=&getuname($safeeval);
1956: my $udom=&getudom($safeeval);
1957: my $symb=&getusymb($safeeval);
1958: my $cid=&getcid($safeeval);
1959: my $cnum=&getcnum($safeeval);
1960: my $cdom=&getcdom($safeeval);
1961: my $chome=&getchome($safeeval);
1962:
1963: my $namespace;
1964: unless ($namespace=$cid) { return ''; }
1965:
1966: # ----------------------------------------------------------- Get stored values
1967:
1968: my %returnhash=();
1969:
1970: if ($cachedassess eq $uname.':'.$udom) {
1971: #
1972: # get data out of the dumped stores
1973: #
1974:
1975: my $version=$cachedstores{'version:'.$symb};
1976: my $scope;
1977: for ($scope=1;$scope<=$version;$scope++) {
1978: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1979: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1980: }
1981: }
1982:
1983: } else {
1984: #
1985: # restore individual
1986: #
1987:
1988: my $answer=&Apache::lonnet::reply(
1989: "restore:$udom:$uname:".
1990: &Apache::lonnet::escape($namespace).":".
1991: &Apache::lonnet::escape($symb),$uhome);
1992: foreach (split(/\&/,$answer)) {
1993: my ($name,$value)=split(/\=/,$_);
1994: $returnhash{&Apache::lonnet::unescape($name)}=
1995: &Apache::lonnet::unescape($value);
1996: }
1997: my $version;
1998: for ($version=1;$version<=$returnhash{'version'};$version++) {
1999: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2000: $returnhash{$_}=$returnhash{$version.':'.$_};
2001: }
2002: }
2003: }
2004: # ----------------------------- returnhash now has all stores for this resource
2005:
2006: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
2007:
2008: my @oldkeys=keys %returnhash;
2009:
2010: foreach (@oldkeys) {
2011: my $name=$_;
2012: my $value=$returnhash{$_};
2013: delete $returnhash{$_};
2014: $name=~s/\_/\./g;
2015: $returnhash{$name}=$value;
2016: }
2017:
2018: # ---------------------------- initialize coursedata and userdata for this user
2019: undef %courseopt;
2020: undef %useropt;
2021:
2022: my $userprefix=$uname.'_'.$udom.'_';
2023:
2024: unless ($uhome eq 'no_host') {
2025: # -------------------------------------------------------------- Get coursedata
2026: unless
2027: ((time-$courserdatas{$cid.'.last_cache'})<240) {
2028: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2029: ':resourcedata',$chome);
2030: if ($reply!~/^error\:/) {
2031: $courserdatas{$cid}=$reply;
2032: $courserdatas{$cid.'.last_cache'}=time;
2033: }
2034: }
2035: foreach (split(/\&/,$courserdatas{$cid})) {
2036: my ($name,$value)=split(/\=/,$_);
2037: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2038: &Apache::lonnet::unescape($value);
2039: }
2040: # --------------------------------------------------- Get userdata (if present)
2041: unless
2042: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2043: my $reply=
2044: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2045: if ($reply!~/^error\:/) {
2046: $userrdatas{$uname.'___'.$udom}=$reply;
2047: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2048: }
2049: }
2050: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2051: my ($name,$value)=split(/\=/,$_);
2052: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2053: &Apache::lonnet::unescape($value);
2054: }
2055: }
2056: # ----------------- now courseopt, useropt initialized for this user and course
2057: # (used by parmval)
2058:
2059: #
2060: # Load keys for this assessment only
2061: #
2062: my %thisassess=();
2063: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2064:
2065: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2066: $thisassess{$_}=1;
2067: }
2068: #
2069: # Load parameters
2070: #
2071: my %c=();
2072:
2073: if (tie(%parmhash,'GDBM_File',
2074: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
2075: my %f=&getformulas($safeeval);
2076: foreach (keys(%f)) {
2077: if ($_=~/^A/) {
2078: unless ($f{$_}=~/^\!/) {
2079: if ($f{$_}=~/^parameter/) {
2080: if ($thisassess{$f{$_}}) {
2081: my $val=&parmval($f{$_},$safeeval);
2082: $c{$_}=$val;
2083: $c{$f{$_}}=$val;
2084: }
2085: } else {
2086: my $key=$f{$_};
2087: my $ckey=$key;
2088: $key=~s/^stores\_/resource\./;
2089: $key=~s/\_/\./g;
2090: $c{$_}=$returnhash{$key};
2091: $c{$ckey}=$returnhash{$key};
2092: }
2093: }
2094: }
2095: }
2096: untie(%parmhash);
2097: }
2098: &setconstants($safeeval,%c);
2099: }
2100:
2101: # --------------------------------------------------------- Various form fields
2102:
2103: sub textfield {
2104: my ($title,$name,$value)=@_;
2105: return "\n<p><b>$title:</b><br>".
2106: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2107: }
2108:
2109: sub hiddenfield {
2110: my ($name,$value)=@_;
2111: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2112: }
2113:
2114: sub selectbox {
2115: my ($title,$name,$value,%options)=@_;
2116: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2117: foreach (sort keys(%options)) {
2118: $selout.='<option value="'.$_.'"';
2119: if ($_ eq $value) { $selout.=' selected'; }
2120: $selout.='>'.$options{$_}.'</option>';
2121: }
2122: return $selout.'</select>';
2123: }
2124:
2125: # =============================================== Update information in a sheet
2126: #
2127: # Add new users or assessments, etc.
2128: #
2129:
2130: sub updatesheet {
2131: my $safeeval=shift;
2132: my $stype=&gettype($safeeval);
2133: if ($stype eq 'classcalc') {
2134: return &updateclasssheet($safeeval);
2135: } else {
2136: return &updatestudentassesssheet($safeeval);
2137: }
2138: }
2139:
2140: # =================================================== Load the rows for a sheet
2141: #
2142: # Import the data for rows
2143: #
2144:
2145: sub loadrows {
2146: my ($safeeval,$r)=@_;
2147: my $stype=&gettype($safeeval);
2148: if ($stype eq 'classcalc') {
2149: &loadcourse($safeeval,$r);
2150: } elsif ($stype eq 'studentcalc') {
2151: &loadstudent($safeeval);
2152: } else {
2153: &loadassessment($safeeval);
2154: }
2155: }
2156:
2157: # ======================================================= Forced recalculation?
2158:
2159: sub checkthis {
2160: my ($keyname,$time)=@_;
2161: return ($time<$expiredates{$keyname});
2162: }
2163: sub forcedrecalc {
2164: my ($uname,$udom,$stype,$usymb)=@_;
2165: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2166: my $time=$oldsheets{$key.'.time'};
2167: if ($ENV{'form.forcerecalc'}) { return 1; }
2168: unless ($time) { return 1; }
2169: if ($stype eq 'assesscalc') {
2170: my $map=(split(/\_\_\_/,$usymb))[0];
2171: if (&checkthis('::assesscalc:',$time) ||
2172: &checkthis('::assesscalc:'.$map,$time) ||
2173: &checkthis('::assesscalc:'.$usymb,$time) ||
2174: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2175: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2176: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2177: return 1;
2178: }
2179: } else {
2180: if (&checkthis('::studentcalc:',$time) ||
2181: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2182: return 1;
2183: }
2184: }
2185: return 0;
2186: }
2187:
2188: # ============================================================== Export handler
2189: #
2190: # Non-interactive call from with program
2191: #
2192:
2193: sub exportsheet {
2194: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2195: my @exportarr=();
2196:
2197: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2198: $fn='default_'.$1;
2199: }
2200:
2201: #
2202: # Check if cached
2203: #
2204:
2205: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2206: my $found='';
2207:
2208: if ($oldsheets{$key}) {
2209: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2210: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2211: if ($name eq $fn) {
2212: $found=$value;
2213: }
2214: }
2215: }
2216:
2217: unless ($found) {
2218: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2219: if ($oldsheets{$key}) {
2220: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2221: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2222: if ($name eq $fn) {
2223: $found=$value;
2224: }
2225: }
2226: }
2227: }
2228: #
2229: # Check if still valid
2230: #
2231: if ($found) {
2232: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2233: $found='';
2234: }
2235: }
2236:
2237: if ($found) {
2238: #
2239: # Return what was cached
2240: #
2241: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2242:
2243: } else {
2244: #
2245: # Not cached
2246: #
2247:
2248: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2249: &readsheet($thissheet,$fn);
2250: &updatesheet($thissheet);
2251: &loadrows($thissheet);
2252: &calcsheet($thissheet);
2253: @exportarr=&exportdata($thissheet);
2254: #
2255: # Store now
2256: #
2257: my $cid=$ENV{'request.course.id'};
2258: my $current='';
2259: if ($stype eq 'studentcalc') {
2260: $current=&Apache::lonnet::reply('get:'.
2261: $ENV{'course.'.$cid.'.domain'}.':'.
2262: $ENV{'course.'.$cid.'.num'}.
2263: ':nohist_calculatedsheets:'.
2264: &Apache::lonnet::escape($key),
2265: $ENV{'course.'.$cid.'.home'});
2266: } else {
2267: $current=&Apache::lonnet::reply('get:'.
2268: &getudom($thissheet).':'.
2269: &getuname($thissheet).
2270: ':nohist_calculatedsheets_'.
2271: $ENV{'request.course.id'}.':'.
2272: &Apache::lonnet::escape($key),
2273: &getuhome($thissheet));
2274:
2275: }
2276: my %currentlystored=();
2277: unless ($current=~/^error\:/) {
2278: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2279: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2280: $currentlystored{$name}=$value;
2281: }
2282: }
2283: $currentlystored{$fn}=join('___;___',@exportarr);
2284:
2285: my $newstore='';
2286: foreach (keys(%currentlystored)) {
2287: if ($newstore) { $newstore.='___&___'; }
2288: $newstore.=$_.'___=___'.$currentlystored{$_};
2289: }
2290: my $now=time;
2291: if ($stype eq 'studentcalc') {
2292: &Apache::lonnet::reply('put:'.
2293: $ENV{'course.'.$cid.'.domain'}.':'.
2294: $ENV{'course.'.$cid.'.num'}.
2295: ':nohist_calculatedsheets:'.
2296: &Apache::lonnet::escape($key).'='.
2297: &Apache::lonnet::escape($newstore).'&'.
2298: &Apache::lonnet::escape($key).'.time='.$now,
2299: $ENV{'course.'.$cid.'.home'});
2300: } else {
2301: &Apache::lonnet::reply('put:'.
2302: &getudom($thissheet).':'.
2303: &getuname($thissheet).
2304: ':nohist_calculatedsheets_'.
2305: $ENV{'request.course.id'}.':'.
2306: &Apache::lonnet::escape($key).'='.
2307: &Apache::lonnet::escape($newstore).'&'.
2308: &Apache::lonnet::escape($key).'.time='.$now,
2309: &getuhome($thissheet));
2310: }
2311: }
2312: return @exportarr;
2313: }
2314: # ============================================================ Expiration Dates
2315: #
2316: # Load previously cached student spreadsheets for this course
2317: #
2318:
2319: sub expirationdates {
2320: undef %expiredates;
2321: my $cid=$ENV{'request.course.id'};
2322: my $reply=&Apache::lonnet::reply('dump:'.
2323: $ENV{'course.'.$cid.'.domain'}.':'.
2324: $ENV{'course.'.$cid.'.num'}.
2325: ':nohist_expirationdates',
2326: $ENV{'course.'.$cid.'.home'});
2327: unless ($reply=~/^error\:/) {
2328: foreach (split(/\&/,$reply)) {
2329: my ($name,$value)=split(/\=/,$_);
2330: $expiredates{&Apache::lonnet::unescape($name)}
2331: =&Apache::lonnet::unescape($value);
2332: }
2333: }
2334: }
2335:
2336: # ===================================================== Calculated sheets cache
2337: #
2338: # Load previously cached student spreadsheets for this course
2339: #
2340:
2341: sub cachedcsheets {
2342: my $cid=$ENV{'request.course.id'};
2343: my $reply=&Apache::lonnet::reply('dump:'.
2344: $ENV{'course.'.$cid.'.domain'}.':'.
2345: $ENV{'course.'.$cid.'.num'}.
2346: ':nohist_calculatedsheets',
2347: $ENV{'course.'.$cid.'.home'});
2348: unless ($reply=~/^error\:/) {
2349: foreach ( split(/\&/,$reply)) {
2350: my ($name,$value)=split(/\=/,$_);
2351: $oldsheets{&Apache::lonnet::unescape($name)}
2352: =&Apache::lonnet::unescape($value);
2353: }
2354: }
2355: }
2356:
2357: # ===================================================== Calculated sheets cache
2358: #
2359: # Load previously cached assessment spreadsheets for this student
2360: #
2361:
2362: sub cachedssheets {
2363: my ($sname,$sdom,$shome)=@_;
2364: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2365: my $cid=$ENV{'request.course.id'};
2366: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2367: ':nohist_calculatedsheets_'.
2368: $ENV{'request.course.id'},
2369: $shome);
2370: unless ($reply=~/^error\:/) {
2371: foreach ( split(/\&/,$reply)) {
2372: my ($name,$value)=split(/\=/,$_);
2373: $oldsheets{&Apache::lonnet::unescape($name)}
2374: =&Apache::lonnet::unescape($value);
2375: }
2376: }
2377: $loadedcaches{$sname.'_'.$sdom}=1;
2378: }
2379: }
2380:
2381: # ===================================================== Calculated sheets cache
2382: #
2383: # Load previously cached assessment spreadsheets for this student
2384: #
2385:
2386: # ================================================================ Main handler
2387: #
2388: # Interactive call to screen
2389: #
2390: #
2391:
2392:
2393: sub handler {
2394: my $r=shift;
2395:
2396: if ($r->header_only) {
2397: $r->content_type('text/html');
2398: $r->send_http_header;
2399: return OK;
2400: }
2401:
2402: # ---------------------------------------------------- Global directory configs
2403:
2404: $includedir=$r->dir_config('lonIncludes');
2405: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2406:
2407: # ----------------------------------------------------- Needs to be in a course
2408:
2409: if ($ENV{'request.course.fn'}) {
2410:
2411: # --------------------------- Get query string for limited number of parameters
2412:
2413: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2414: ['uname','udom','usymb','ufn']);
2415:
2416: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2417: $ENV{'form.ufn'}='default_'.$1;
2418: }
2419:
2420: # -------------------------------------- Interactive loading of specific sheet?
2421: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2422: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2423: }
2424: # ------------------------------------------- Nothing there? Must be login user
2425:
2426: my $aname;
2427: my $adom;
2428:
2429: unless ($ENV{'form.uname'}) {
2430: $aname=$ENV{'user.name'};
2431: $adom=$ENV{'user.domain'};
2432: } else {
2433: $aname=$ENV{'form.uname'};
2434: $adom=$ENV{'form.udom'};
2435: }
2436:
2437: # ------------------------------------------------------------------- Open page
2438:
2439: $r->content_type('text/html');
2440: $r->header_out('Cache-control','no-cache');
2441: $r->header_out('Pragma','no-cache');
2442: $r->send_http_header;
2443:
2444: # --------------------------------------------------------------- Screen output
2445:
2446: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2447: $r->print(<<ENDSCRIPT);
2448: <script language="JavaScript">
2449:
2450: function celledit(cn,cf) {
2451: var cnf=prompt(cn,cf);
2452: if (cnf!=null) {
2453: document.sheet.unewfield.value=cn;
2454: document.sheet.unewformula.value=cnf;
2455: document.sheet.submit();
2456: }
2457: }
2458:
2459: function changesheet(cn) {
2460: document.sheet.unewfield.value=cn;
2461: document.sheet.unewformula.value='changesheet';
2462: document.sheet.submit();
2463: }
2464:
2465: function insertrow(cn) {
2466: document.sheet.unewfield.value='insertrow';
2467: document.sheet.unewformula.value=cn;
2468: document.sheet.submit();
2469: }
2470:
2471: </script>
2472: ENDSCRIPT
2473: $r->print('</head><body bgcolor="#FFFFFF">'.
2474: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2475: '<h1>LON-CAPA Spreadsheet</h1>'.
2476: '<form action="'.$r->uri.'" name=sheet method=post>'.
2477: &hiddenfield('uname',$ENV{'form.uname'}).
2478: &hiddenfield('udom',$ENV{'form.udom'}).
2479: &hiddenfield('usymb',$ENV{'form.usymb'}).
2480: &hiddenfield('unewfield','').
2481: &hiddenfield('unewformula',''));
2482:
2483: # ---------------------- Make sure that this gets out, even if user hits "stop"
2484:
2485: $r->rflush();
2486:
2487: # ---------------------------------------------------------------- Full recalc?
2488:
2489:
2490: if ($ENV{'form.forcerecalc'}) {
2491: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2492: undef %spreadsheets;
2493: undef %courserdatas;
2494: undef %userrdatas;
2495: undef %defaultsheets;
2496: undef %updatedata;
2497: }
2498:
2499: # ---------------------------------------- Read new sheet or modified worksheet
2500:
2501: $r->uri=~/\/(\w+)$/;
2502:
2503: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2504:
2505: # ------------------------ If a new formula had been entered, go from work copy
2506:
2507: if ($ENV{'form.unewfield'}) {
2508: $r->print('<h2>Modified Workcopy</h2>');
2509: $ENV{'form.unewformula'}=~s/\'/\"/g;
2510: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2511: $ENV{'form.unewformula'}.'<p>');
2512: &setfilename($asheet,$ENV{'form.ufn'});
2513: &tmpread($asheet,
2514: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2515:
2516: } elsif ($ENV{'form.saveas'}) {
2517: &setfilename($asheet,$ENV{'form.ufn'});
2518: &tmpread($asheet);
2519: } else {
2520: &readsheet($asheet,$ENV{'form.ufn'});
2521: }
2522:
2523: # -------------------------------------------------- Print out user information
2524:
2525: unless (&gettype($asheet) eq 'classcalc') {
2526: $r->print('<p><b>User:</b> '.&getuname($asheet).
2527: '<br><b>Domain:</b> '.&getudom($asheet));
2528: if (&getcsec($asheet) eq '-1') {
2529: $r->print('<h3><font color=red>'.
2530: 'Not a student in this course</font></h3>');
2531: } else {
2532: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2533: }
2534: if ($ENV{'form.usymb'}) {
2535: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2536: }
2537: }
2538:
2539: # ---------------------------------------------------------------- Course title
2540:
2541: $r->print('<h1>'.
2542: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2543: '</h1><h3>'.localtime().'</h3>');
2544:
2545: # ---------------------------------------------------- See if user can see this
2546:
2547: if ((&gettype($asheet) eq 'classcalc') ||
2548: (&getuname($asheet) ne $ENV{'user.name'}) ||
2549: (&getudom($asheet) ne $ENV{'user.domain'})) {
2550: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2551: $r->print(
2552: '<h1>Access Permission Denied</h1></form></body></html>');
2553: return OK;
2554: }
2555: }
2556:
2557: # ---------------------------------------------------------- Additional options
2558:
2559: $r->print(
2560: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2561: );
2562: if (&gettype($asheet) eq 'assesscalc') {
2563: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2564: &getuname($asheet).
2565: '&udom='.&getudom($asheet).
2566: '">Level up: Student Sheet</a></font><p>');
2567: }
2568:
2569: if ((&gettype($asheet) eq 'studentcalc') &&
2570: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2571: $r->print (
2572: '<p><font size=+2><a href="/adm/classcalc">'.
2573: 'Level up: Course Sheet</a></font><p>');
2574: }
2575:
2576:
2577: # ----------------------------------------------------------------- Save dialog
2578:
2579:
2580: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2581: my $fname=$ENV{'form.ufn'};
2582: $fname=~s/\_[^\_]+$//;
2583: if ($fname eq 'default') { $fname='course_default'; }
2584: $r->print('<input type=submit name=saveas value="Save as ...">'.
2585: '<input type=text size=20 name=newfn value="'.$fname.
2586: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2587: }
2588:
2589: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2590:
2591: # ----------------------------------------------------------------- Load dialog
2592: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2593: $r->print('<p><input type=submit name=load value="Load ...">'.
2594: '<select name="loadthissheet">'.
2595: '<option name="default">Default</option>');
2596: foreach (&othersheets($asheet,&gettype($asheet))) {
2597: $r->print('<option name="'.$_.'"');
2598: if ($ENV{'form.ufn'} eq $_) {
2599: $r->print(' selected');
2600: }
2601: $r->print('>'.$_.'</option>');
2602: }
2603: $r->print('</select><p>');
2604: if (&gettype($asheet) eq 'studentcalc') {
2605: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2606: }
2607: }
2608:
2609: # --------------------------------------------------------------- Cached sheets
2610:
2611: &expirationdates();
2612:
2613: undef %oldsheets;
2614: undef %loadedcaches;
2615:
2616: if (&gettype($asheet) eq 'classcalc') {
2617: $r->print("Loading previously calculated student sheets ...<br>\n");
2618: $r->rflush();
2619: &cachedcsheets();
2620: } elsif (&gettype($asheet) eq 'studentcalc') {
2621: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2622: $r->rflush();
2623: &cachedssheets(&getuname($asheet),&getudom($asheet),
2624: &getuhome($asheet));
2625: }
2626:
2627: # ----------------------------------------------------- Update sheet, load rows
2628:
2629: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2630: $r->rflush();
2631:
2632: &updatesheet($asheet);
2633:
2634: $r->print("Updated rows, loading row data ...<br>\n");
2635: $r->rflush();
2636:
2637: &loadrows($asheet,$r);
2638:
2639: $r->print("Loaded row data, calculating sheet ...<br>\n");
2640: $r->rflush();
2641:
2642: my $calcoutput=&calcsheet($asheet);
2643: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2644:
2645: # ---------------------------------------------------- See if something to save
2646:
2647: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2648: my $fname='';
2649: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2650: $fname=~s/\W/\_/g;
2651: if ($fname eq 'default') { $fname='course_default'; }
2652: $fname.='_'.&gettype($asheet);
2653: &setfilename($asheet,$fname);
2654: $ENV{'form.ufn'}=$fname;
2655: $r->print('<p>Saving spreadsheet: '.
2656: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2657: }
2658: }
2659:
2660: # ------------------------------------------------ Write the modified worksheet
2661:
2662: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2663:
2664: &tmpwrite($asheet);
2665:
2666: if (&gettype($asheet) eq 'studentcalc') {
2667: $r->print('<br>Show rows with empty A column: ');
2668: } else {
2669: $r->print('<br>Show empty rows: ');
2670: }
2671:
2672: $r->print(&hiddenfield('userselhidden','true').
2673: '<input type=checkbox name=showall onClick="submit()"');
2674:
2675: if ($ENV{'form.showall'}) {
2676: $r->print(' checked');
2677: } else {
2678: unless ($ENV{'form.userselhidden'}) {
2679: unless
2680: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2681: $r->print(' checked');
2682: $ENV{'form.showall'}=1;
2683: }
2684: }
2685: }
2686: $r->print('>');
2687:
2688: if (&gettype($asheet) eq 'classcalc') {
2689: $r->print(
2690: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2691: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2692: $r->print('>');
2693: }
2694:
2695: # ------------------------------------------------------------------ Insertrows
2696:
2697: $r->print(<<ENDINSERTBUTTONS);
2698: <br>
2699: <input type='button' onClick='insertrow("top");'
2700: value='Insert Row Top'>
2701: <input type='button' onClick='insertrow("bottom");'
2702: value='Insert Row Bottom'><br>
2703: ENDINSERTBUTTONS
2704:
2705: # ------------------------------------------------------------- Print out sheet
2706:
2707: &outsheet($r,$asheet);
2708: $r->print('</form></body></html>');
2709:
2710: # ------------------------------------------------------------------------ Done
2711: } else {
2712: # ----------------------------- Not in a course, or not allowed to modify parms
2713: $ENV{'user.error.msg'}=
2714: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2715: return HTTP_NOT_ACCEPTABLE;
2716: }
2717: return OK;
2718:
2719: }
2720:
2721: 1;
2722: __END__
2723:
2724:
2725:
2726:
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