1: #
2: # $Id: lonspreadsheet.pm,v 1.97 2002/07/15 12:26:51 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: #
110: # Some hashes for stats on timing and performance
111: #
112:
113: my %starttimes;
114: my %usedtimes;
115: my %numbertimes;
116:
117: # Stuff that only the screen handler can know
118:
119: my $includedir;
120: my $tmpdir;
121:
122: # =============================================================================
123: # ===================================== Implements an instance of a spreadsheet
124:
125: sub initsheet {
126: my $safeeval = new Safe(shift);
127: my $safehole = new Safe::Hole;
128: $safeeval->permit("entereval");
129: $safeeval->permit(":base_math");
130: $safeeval->permit("sort");
131: $safeeval->deny(":base_io");
132: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
133: $safeeval->share('$@');
134: my $code=<<'ENDDEFS';
135: # ---------------------------------------------------- Inside of the safe space
136:
137: #
138: # f: formulas
139: # t: intermediate format (variable references expanded)
140: # v: output values
141: # c: preloaded constants (A-column)
142: # rl: row label
143: # os: other spreadsheets (for student spreadsheet only)
144:
145: undef %v;
146: undef %t;
147: undef %f;
148: undef %c;
149: undef %rl;
150: undef @os;
151:
152: $maxrow=0;
153: $sheettype='';
154:
155: # filename/reference of the sheet
156:
157: $filename='';
158:
159: # user data
160: $uname='';
161: $uhome='';
162: $udom='';
163:
164: # course data
165:
166: $csec='';
167: $chome='';
168: $cnum='';
169: $cdom='';
170: $cid='';
171: $cfn='';
172:
173: # symb
174:
175: $usymb='';
176:
177: # error messages
178:
179: $errormsg='';
180:
181: sub mask {
182: my ($lower,$upper)=@_;
183:
184: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
185: my $la=$1;
186: my $ld=$2;
187:
188: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
189: my $ua=$1;
190: my $ud=$2;
191: my $alpha='';
192: my $num='';
193:
194: if (($la eq '*') || ($ua eq '*')) {
195: $alpha='[A-Za-z]';
196: } else {
197: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
198: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
199: $alpha='['.$la.'-'.$ua.']';
200: } else {
201: $alpha='['.$la.'-Za-'.$ua.']';
202: }
203: }
204:
205: if (($ld eq '*') || ($ud eq '*')) {
206: $num='\d+';
207: } else {
208: if (length($ld)!=length($ud)) {
209: $num.='(';
210: foreach ($ld=~m/\d/g) {
211: $num.='['.$_.'-9]';
212: }
213: if (length($ud)-length($ld)>1) {
214: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
215: }
216: $num.='|';
217: foreach ($ud=~m/\d/g) {
218: $num.='[0-'.$_.']';
219: }
220: $num.=')';
221: } else {
222: my @lda=($ld=~m/\d/g);
223: my @uda=($ud=~m/\d/g);
224: my $i; $j=0; $notdone=1;
225: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
226: if ($lda[$i]==$uda[$i]) {
227: $num.=$lda[$i];
228: $j=$i;
229: } else {
230: $notdone=0;
231: }
232: }
233: if ($j<$#lda-1) {
234: $num.='('.$lda[$j+1];
235: for ($i=$j+2;$i<=$#lda;$i++) {
236: $num.='['.$lda[$i].'-9]';
237: }
238: if ($uda[$j+1]-$lda[$j+1]>1) {
239: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
240: ($#lda-$j-1).'}';
241: }
242: $num.='|'.$uda[$j+1];
243: for ($i=$j+2;$i<=$#uda;$i++) {
244: $num.='[0-'.$uda[$i].']';
245: }
246: $num.=')';
247: } else {
248: if ($lda[$#lda]!=$uda[$#uda]) {
249: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
250: }
251: }
252: }
253: }
254: return '^'.$alpha.$num."\$";
255: }
256:
257: #-------------------------------------------------------
258:
259: =item UWCALC(hashname,modules,units,date)
260:
261: returns the proportion of the module
262: weights not previously completed by the student.
263:
264: =over 4
265:
266: =item hashname
267:
268: name of the hash the module dates have been inserted into
269:
270: =item modules
271:
272: reference to a cell which contains a comma deliminated list of modules
273: covered by the assignment.
274:
275: =item units
276:
277: reference to a cell which contains a comma deliminated list of module
278: weights with respect to the assignment
279:
280: =item date
281:
282: reference to a cell which contains the date the assignment was completed.
283:
284: =back
285:
286: =cut
287:
288: #-------------------------------------------------------
289: sub UWCALC {
290: my ($hashname,$modules,$units,$date) = @_;
291: my @Modules = split(/,/,$modules);
292: my @Units = split(/,/,$units);
293: my $total_weight;
294: foreach (@Units) {
295: $total_weight += $_;
296: }
297: my $usum=0;
298: for (my $i=0; $i<=$#Modules; $i++) {
299: if (&HASH($hashname,$Modules[$i]) eq $date) {
300: $usum += $Units[$i];
301: }
302: }
303: return $usum/$total_weight;
304: }
305:
306: #-------------------------------------------------------
307:
308: =item CDLSUM(list)
309:
310: returns the sum of the elements in a cell which contains
311: a Comma Deliminate List of numerical values.
312: 'list' is a reference to a cell which contains a comma deliminated list.
313:
314: =cut
315:
316: #-------------------------------------------------------
317: sub CDLSUM {
318: my ($list)=@_;
319: my $sum;
320: foreach (split/,/,$list) {
321: $sum += $_;
322: }
323: return $sum;
324: }
325:
326: #-------------------------------------------------------
327:
328: =item CDLITEM(list,index)
329:
330: returns the item at 'index' in a Comma Deliminated List.
331:
332: =over 4
333:
334: =item list
335:
336: reference to a cell which contains a comma deliminated list.
337:
338: =item index
339:
340: the Perl index of the item requested (first element in list has
341: an index of 0)
342:
343: =back
344:
345: =cut
346:
347: #-------------------------------------------------------
348: sub CDLITEM {
349: my ($list,$index)=@_;
350: my @Temp = split/,/,$list;
351: return $Temp[$index];
352: }
353:
354: #-------------------------------------------------------
355:
356: =item CDLHASH(name,key,value)
357:
358: loads a comma deliminated list of keys into
359: the hash 'name', all with a value of 'value'.
360:
361: =over 4
362:
363: =item name
364:
365: name of the hash.
366:
367: =item key
368:
369: (a pointer to) a comma deliminated list of keys.
370:
371: =item value
372:
373: a single value to be entered for each key.
374:
375: =back
376:
377: =cut
378:
379: #-------------------------------------------------------
380: sub CDLHASH {
381: my ($name,$key,$value)=@_;
382: my @Keys;
383: my @Values;
384: # Check to see if we have multiple $key values
385: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
386: my $keymask = &mask($key);
387: # Assume the keys are addresses
388: my @Temp = grep /$keymask/,keys(%v);
389: @Keys = $v{@Temp};
390: } else {
391: $Keys[0]= $key;
392: }
393: my @Temp;
394: foreach $key (@Keys) {
395: @Temp = (@Temp, split/,/,$key);
396: }
397: @Keys = @Temp;
398: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
399: my $valmask = &mask($value);
400: my @Temp = grep /$valmask/,keys(%v);
401: @Values =$v{@Temp};
402: } else {
403: $Values[0]= $value;
404: }
405: $value = $Values[0];
406: # Add values to hash
407: for (my $i = 0; $i<=$#Keys; $i++) {
408: my $key = $Keys[$i];
409: if (! exists ($hashes{$name}->{$key})) {
410: $hashes{$name}->{$key}->[0]=$value;
411: } else {
412: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
413: $hashes{$name}->{$key} = \@Temp;
414: }
415: }
416: return "hash '$name' updated";
417: }
418:
419: #-------------------------------------------------------
420:
421: =item GETHASH(name,key,index)
422:
423: returns the element in hash 'name'
424: reference by the key 'key', at index 'index' in the values list.
425:
426: =cut
427:
428: #-------------------------------------------------------
429: sub GETHASH {
430: my ($name,$key,$index)=@_;
431: if (! defined($index)) {
432: $index = 0;
433: }
434: if ($key =~ /^[A-z]\d+$/) {
435: $key = $v{$key};
436: }
437: return $hashes{$name}->{$key}->[$index];
438: }
439:
440: #-------------------------------------------------------
441:
442: =item CLEARHASH(name)
443:
444: clears all the values from the hash 'name'
445:
446: =item CLEARHASH(name,key)
447:
448: clears all the values from the hash 'name' associated with the given key.
449:
450: =cut
451:
452: #-------------------------------------------------------
453: sub CLEARHASH {
454: my ($name,$key)=@_;
455: if (defined($key)) {
456: if (exists($hashes{$name}->{$key})) {
457: $hashes{$name}->{$key}=undef;
458: return "hash '$name' key '$key' cleared";
459: }
460: } else {
461: if (exists($hashes{$name})) {
462: $hashes{$name}=undef;
463: return "hash '$name' cleared";
464: }
465: }
466: return "Error in clearing hash";
467: }
468:
469: #-------------------------------------------------------
470:
471: =item HASH(name,key,value)
472:
473: loads values into an internal hash. If a key
474: already has a value associated with it, the values are sorted numerically.
475:
476: =item HASH(name,key)
477:
478: returns the 0th value in the hash 'name' associated with 'key'.
479:
480: =cut
481:
482: #-------------------------------------------------------
483: sub HASH {
484: my ($name,$key,$value)=@_;
485: my @Keys;
486: undef @Keys;
487: my @Values;
488: # Check to see if we have multiple $key values
489: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
490: my $keymask = &mask($key);
491: # Assume the keys are addresses
492: my @Temp = grep /$keymask/,keys(%v);
493: @Keys = $v{@Temp};
494: } else {
495: $Keys[0]= $key;
496: }
497: # If $value is empty, return the first value associated
498: # with the first key.
499: if (! $value) {
500: return $hashes{$name}->{$Keys[0]}->[0];
501: }
502: # Check to see if we have multiple $value(s)
503: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
504: my $valmask = &mask($value);
505: my @Temp = grep /$valmask/,keys(%v);
506: @Values =$v{@Temp};
507: } else {
508: $Values[0]= $value;
509: }
510: # Add values to hash
511: for (my $i = 0; $i<=$#Keys; $i++) {
512: my $key = $Keys[$i];
513: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
514: if (! exists ($hashes{$name}->{$key})) {
515: $hashes{$name}->{$key}->[0]=$value;
516: } else {
517: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
518: $hashes{$name}->{$key} = \@Temp;
519: }
520: }
521: return $Values[-1];
522: }
523:
524: #-------------------------------------------------------
525:
526: =item NUM(range)
527:
528: returns the number of items in the range.
529:
530: =cut
531:
532: #-------------------------------------------------------
533: sub NUM {
534: my $mask=mask(@_);
535: my $num= $#{@{grep(/$mask/,keys(%v))}}+1;
536: return $num;
537: }
538:
539: sub BIN {
540: my ($low,$high,$lower,$upper)=@_;
541: my $mask=mask($lower,$upper);
542: my $num=0;
543: foreach (grep /$mask/,keys(%v)) {
544: if (($v{$_}>=$low) && ($v{$_}<=$high)) {
545: $num++;
546: }
547: }
548: return $num;
549: }
550:
551:
552: #-------------------------------------------------------
553:
554: =item SUM(range)
555:
556: returns the sum of items in the range.
557:
558: =cut
559:
560: #-------------------------------------------------------
561: sub SUM {
562: my $mask=mask(@_);
563: my $sum=0;
564: foreach (grep /$mask/,keys(%v)) {
565: $sum+=$v{$_};
566: }
567: return $sum;
568: }
569:
570: #-------------------------------------------------------
571:
572: =item MEAN(range)
573:
574: compute the average of the items in the range.
575:
576: =cut
577:
578: #-------------------------------------------------------
579: sub MEAN {
580: my $mask=mask(@_);
581: my $sum=0; my $num=0;
582: foreach (grep /$mask/,keys(%v)) {
583: $sum+=$v{$_};
584: $num++;
585: }
586: if ($num) {
587: return $sum/$num;
588: } else {
589: return undef;
590: }
591: }
592:
593: #-------------------------------------------------------
594:
595: =item STDDEV(range)
596:
597: compute the standard deviation of the items in the range.
598:
599: =cut
600:
601: #-------------------------------------------------------
602: sub STDDEV {
603: my $mask=mask(@_);
604: my $sum=0; my $num=0;
605: foreach (grep /$mask/,keys(%v)) {
606: $sum+=$v{$_};
607: $num++;
608: }
609: unless ($num>1) { return undef; }
610: my $mean=$sum/$num;
611: $sum=0;
612: foreach (grep /$mask/,keys(%v)) {
613: $sum+=($v{$_}-$mean)**2;
614: }
615: return sqrt($sum/($num-1));
616: }
617:
618: #-------------------------------------------------------
619:
620: =item PROD(range)
621:
622: compute the product of the items in the range.
623:
624: =cut
625:
626: #-------------------------------------------------------
627: sub PROD {
628: my $mask=mask(@_);
629: my $prod=1;
630: foreach (grep /$mask/,keys(%v)) {
631: $prod*=$v{$_};
632: }
633: return $prod;
634: }
635:
636: #-------------------------------------------------------
637:
638: =item MAX(range)
639:
640: compute the maximum of the items in the range.
641:
642: =cut
643:
644: #-------------------------------------------------------
645: sub MAX {
646: my $mask=mask(@_);
647: my $max='-';
648: foreach (grep /$mask/,keys(%v)) {
649: unless ($max) { $max=$v{$_}; }
650: if (($v{$_}>$max) || ($max eq '-')) { $max=$v{$_}; }
651: }
652: return $max;
653: }
654:
655: #-------------------------------------------------------
656:
657: =item MIN(range)
658:
659: compute the minimum of the items in the range.
660:
661: =cut
662:
663: #-------------------------------------------------------
664: sub MIN {
665: my $mask=mask(@_);
666: my $min='-';
667: foreach (grep /$mask/,keys(%v)) {
668: unless ($max) { $max=$v{$_}; }
669: if (($v{$_}<$min) || ($min eq '-')) { $min=$v{$_}; }
670: }
671: return $min;
672: }
673:
674: #-------------------------------------------------------
675:
676: =item SUMMAX(num,lower,upper)
677:
678: compute the sum of the largest 'num' items in the range from
679: 'lower' to 'upper'
680:
681: =cut
682:
683: #-------------------------------------------------------
684: sub SUMMAX {
685: my ($num,$lower,$upper)=@_;
686: my $mask=mask($lower,$upper);
687: my @inside=();
688: foreach (grep /$mask/,keys(%v)) {
689: push (@inside,$v{$_});
690: }
691: @inside=sort(@inside);
692: my $sum=0; my $i;
693: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
694: $sum+=$inside[$i];
695: }
696: return $sum;
697: }
698:
699: #-------------------------------------------------------
700:
701: =item SUMMIN(num,lower,upper)
702:
703: compute the sum of the smallest 'num' items in the range from
704: 'lower' to 'upper'
705:
706: =cut
707:
708: #-------------------------------------------------------
709: sub SUMMIN {
710: my ($num,$lower,$upper)=@_;
711: my $mask=mask($lower,$upper);
712: my @inside=();
713: foreach (grep /$mask/,keys(%v)) {
714: $inside[$#inside+1]=$v{$_};
715: }
716: @inside=sort(@inside);
717: my $sum=0; my $i;
718: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
719: $sum+=$inside[$i];
720: }
721: return $sum;
722: }
723:
724: sub expandnamed {
725: my $expression=shift;
726: if ($expression=~/^\&/) {
727: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
728: my @vars=split(/\W+/,$formula);
729: my %values=();
730: undef %values;
731: foreach ( @vars ) {
732: my $varname=$_;
733: if ($varname=~/\D/) {
734: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
735: $varname=~s/$var/\(\\w\+\)/g;
736: foreach (keys(%c)) {
737: if ($_=~/$varname/) {
738: $values{$1}=1;
739: }
740: }
741: }
742: }
743: if ($func eq 'EXPANDSUM') {
744: my $result='';
745: foreach (keys(%values)) {
746: my $thissum=$formula;
747: $thissum=~s/$var/$_/g;
748: $result.=$thissum.'+';
749: }
750: $result=~s/\+$//;
751: return $result;
752: } else {
753: return 0;
754: }
755: } else {
756: # it is not a function, so it is a parameter name
757: # We should do the following:
758: # 1. Take the list of parameter names
759: # 2. look through the list for ones that match the parameter we want
760: # 3. If there are no collisions, return the one that matches
761: # 4. If there is a collision, return 'bad parameter name error'
762: my $returnvalue = '';
763: my @matches = ();
764: $#matches = -1;
765: study $expression;
766: foreach $parameter (keys(%c)) {
767: push @matches,$parameter if ($parameter =~ /$expression/);
768: }
769: if ($#matches == 0) {
770: $returnvalue = '$c{\''.$matches[0].'\'}';
771: } else {
772: $returnvalue = "'bad parameter name : $expression'";
773: }
774: return $returnvalue;
775: }
776: }
777:
778: sub sett {
779: %t=();
780: my $pattern='';
781: if ($sheettype eq 'assesscalc') {
782: $pattern='A';
783: } else {
784: $pattern='[A-Z]';
785: }
786:
787: # Deal with the template row
788: foreach (keys(%f)) {
789: if ($_=~/template\_(\w)/) {
790: my $col=$1;
791: unless ($col=~/^$pattern/) {
792: foreach (keys(%f)) {
793: if ($_=~/A(\d+)/) {
794: my $trow=$1;
795: if ($trow) {
796: # Get the name of this cell
797: my $lb=$col.$trow;
798: # Grab the template declaration
799: $t{$lb}=$f{'template_'.$col};
800: # Replace '#' with the row number
801: $t{$lb}=~s/\#/$trow/g;
802: # Replace '....' with ','
803: $t{$lb}=~s/\.\.+/\,/g;
804: # Replace 'A0' with the value from 'A0'
805: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
806: # Replace parameters
807: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
808: }
809: }
810: }
811: }
812: }
813: }
814:
815: # Deal with the normal cells
816: foreach (keys(%f)) {
817: if (($f{$_}) && ($_!~/template\_/)) {
818: my $matches=($_=~/^$pattern(\d+)/);
819: if (($matches) && ($1)) {
820: unless ($f{$_}=~/^\!/) {
821: $t{$_}=$c{$_};
822: }
823: } else {
824: $t{$_}=$f{$_};
825: $t{$_}=~s/\.\.+/\,/g;
826: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
827: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
828: }
829: }
830: }
831: # For inserted lines, [B-Z] is also valid
832:
833: unless ($sheettype eq 'assesscalc') {
834: foreach (keys(%f)) {
835: if ($_=~/[B-Z](\d+)/) {
836: if ($f{'A'.$1}=~/^[\~\-]/) {
837: $t{$_}=$f{$_};
838: $t{$_}=~s/\.\.+/\,/g;
839: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
840: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
841: }
842: }
843: }
844: }
845:
846: # For some reason 'A0' gets special treatment... This seems superfluous
847: # but I imagine it is here for a reason.
848: $t{'A0'}=$f{'A0'};
849: $t{'A0'}=~s/\.\.+/\,/g;
850: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
851: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
852: }
853:
854: sub calc {
855: undef %v;
856: &sett();
857: my $notfinished=1;
858: my $lastcalc='';
859: my $depth=0;
860: while ($notfinished) {
861: $notfinished=0;
862: foreach (keys(%t)) {
863: my $old=$v{$_};
864: $v{$_}=eval $t{$_};
865: if ($@) {
866: undef %v;
867: return $_.': '.$@;
868: }
869: if ($v{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
870: }
871: $depth++;
872: if ($depth>100) {
873: undef %v;
874: return $lastcalc.': Maximum calculation depth exceeded';
875: }
876: }
877: return '';
878: }
879:
880: sub templaterow {
881: my @cols=();
882: $cols[0]='<b><font size=+1>Template</font></b>';
883: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
884: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
885: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
886: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
887: my $fm=$f{'template_'.$_};
888: $fm=~s/[\'\"]/\&\#34;/g;
889: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
890: }
891: return @cols;
892: }
893:
894: sub outrowassess {
895: my $n=shift;
896: my @cols=();
897: if ($n) {
898: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
899: if ($rl{$usy}) {
900: $cols[0]=$rl{$usy}.'<br>'.
901: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
902: ')"><option name="default">Default</option>';
903: } else { $cols[0]=''; }
904: foreach (@os) {
905: $cols[0].='<option name="'.$_.'"';
906: if ($ufn eq $_) {
907: $cols[0].=' selected';
908: }
909: $cols[0].='>'.$_.'</option>';
910: }
911: $cols[0].='</select>';
912: } else {
913: $cols[0]='<b><font size=+1>Export</font></b>';
914: }
915: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
916: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
917: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
918: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
919: my $fm=$f{$_.$n};
920: $fm=~s/[\'\"]/\&\#34;/g;
921: push(@cols,"'$_$n','$fm'".'___eq___'.$v{$_.$n});
922: }
923: return @cols;
924: }
925:
926: sub outrow {
927: my $n=shift;
928: my @cols=();
929: if ($n) {
930: $cols[0]=$rl{$f{'A'.$n}};
931: } else {
932: $cols[0]='<b><font size=+1>Export</font></b>';
933: }
934: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
935: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
936: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
937: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
938: my $fm=$f{$_.$n};
939: $fm=~s/[\'\"]/\&\#34;/g;
940: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
941: }
942: return @cols;
943: }
944:
945: sub exportrowa {
946: my @exportarray=();
947: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
948: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
949: $exportarray[$#exportarray+1]=$v{$_.'0'};
950: }
951: return @exportarray;
952: }
953:
954: # ------------------------------------------- End of "Inside of the safe space"
955: ENDDEFS
956: $safeeval->reval($code);
957: return $safeeval;
958: }
959:
960: # ------------------------------------------------ Add or change formula values
961:
962: sub setformulas {
963: my ($safeeval,%f)=@_;
964: %{$safeeval->varglob('f')}=%f;
965: }
966:
967: # ------------------------------------------------ Add or change formula values
968:
969: sub setconstants {
970: my ($safeeval,%c)=@_;
971: %{$safeeval->varglob('c')}=%c;
972: }
973:
974: # --------------------------------------------- Set names of other spreadsheets
975:
976: sub setothersheets {
977: my ($safeeval,@os)=@_;
978: @{$safeeval->varglob('os')}=@os;
979: }
980:
981: # ------------------------------------------------ Add or change formula values
982:
983: sub setrowlabels {
984: my ($safeeval,%rl)=@_;
985: %{$safeeval->varglob('rl')}=%rl;
986: }
987:
988: # ------------------------------------------------------- Calculate spreadsheet
989:
990: sub calcsheet {
991: my $safeeval=shift;
992: return $safeeval->reval('&calc();');
993: }
994:
995: # ------------------------------------------------------------------ Get values
996:
997: sub getvalues {
998: my $safeeval=shift;
999: return $safeeval->reval('%v');
1000: }
1001:
1002: # ---------------------------------------------------------------- Get formulas
1003:
1004: sub getformulas {
1005: my $safeeval=shift;
1006: return %{$safeeval->varglob('f')};
1007: }
1008:
1009: # ----------------------------------------------------- Get value of $f{'A'.$n}
1010:
1011: sub getfa {
1012: my ($safeeval,$n)=@_;
1013: return $safeeval->reval('$f{"A'.$n.'"}');
1014: }
1015:
1016: # -------------------------------------------------------------------- Get type
1017:
1018: sub gettype {
1019: my $safeeval=shift;
1020: return $safeeval->reval('$sheettype');
1021: }
1022:
1023: # ------------------------------------------------------------------ Set maxrow
1024:
1025: sub setmaxrow {
1026: my ($safeeval,$row)=@_;
1027: $safeeval->reval('$maxrow='.$row.';');
1028: }
1029:
1030: # ------------------------------------------------------------------ Get maxrow
1031:
1032: sub getmaxrow {
1033: my $safeeval=shift;
1034: return $safeeval->reval('$maxrow');
1035: }
1036:
1037: # ---------------------------------------------------------------- Set filename
1038:
1039: sub setfilename {
1040: my ($safeeval,$fn)=@_;
1041: $safeeval->reval('$filename="'.$fn.'";');
1042: }
1043:
1044: # ---------------------------------------------------------------- Get filename
1045:
1046: sub getfilename {
1047: my $safeeval=shift;
1048: return $safeeval->reval('$filename');
1049: }
1050:
1051: # --------------------------------------------------------------- Get course ID
1052:
1053: sub getcid {
1054: my $safeeval=shift;
1055: return $safeeval->reval('$cid');
1056: }
1057:
1058: # --------------------------------------------------------- Get course filename
1059:
1060: sub getcfn {
1061: my $safeeval=shift;
1062: return $safeeval->reval('$cfn');
1063: }
1064:
1065: # ----------------------------------------------------------- Get course number
1066:
1067: sub getcnum {
1068: my $safeeval=shift;
1069: return $safeeval->reval('$cnum');
1070: }
1071:
1072: # ------------------------------------------------------------- Get course home
1073:
1074: sub getchome {
1075: my $safeeval=shift;
1076: return $safeeval->reval('$chome');
1077: }
1078:
1079: # ----------------------------------------------------------- Get course domain
1080:
1081: sub getcdom {
1082: my $safeeval=shift;
1083: return $safeeval->reval('$cdom');
1084: }
1085:
1086: # ---------------------------------------------------------- Get course section
1087:
1088: sub getcsec {
1089: my $safeeval=shift;
1090: return $safeeval->reval('$csec');
1091: }
1092:
1093: # --------------------------------------------------------------- Get user name
1094:
1095: sub getuname {
1096: my $safeeval=shift;
1097: return $safeeval->reval('$uname');
1098: }
1099:
1100: # ------------------------------------------------------------- Get user domain
1101:
1102: sub getudom {
1103: my $safeeval=shift;
1104: return $safeeval->reval('$udom');
1105: }
1106:
1107: # --------------------------------------------------------------- Get user home
1108:
1109: sub getuhome {
1110: my $safeeval=shift;
1111: return $safeeval->reval('$uhome');
1112: }
1113:
1114: # -------------------------------------------------------------------- Get symb
1115:
1116: sub getusymb {
1117: my $safeeval=shift;
1118: return $safeeval->reval('$usymb');
1119: }
1120:
1121: # ------------------------------------------------------------- Export of A-row
1122:
1123: sub exportdata {
1124: my $safeeval=shift;
1125: return $safeeval->reval('&exportrowa()');
1126: }
1127:
1128:
1129: # ========================================================== End of Spreadsheet
1130: # =============================================================================
1131:
1132: #
1133: # Procedures for screen output
1134: #
1135: # --------------------------------------------- Produce output row n from sheet
1136:
1137: sub rown {
1138: my ($safeeval,$n)=@_;
1139: my $defaultbg;
1140: my $rowdata='';
1141: my $dataflag=0;
1142: unless ($n eq '-') {
1143: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1144: } else {
1145: $defaultbg='#E0FF';
1146: }
1147: unless ($ENV{'form.showcsv'}) {
1148: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1149: } else {
1150: $rowdata.="\n".'"'.$n.'"';
1151: }
1152: my $showf=0;
1153: my $proc;
1154: my $maxred=1;
1155: my $sheettype=&gettype($safeeval);
1156: if ($sheettype eq 'studentcalc') {
1157: $proc='&outrowassess';
1158: $maxred=26;
1159: } else {
1160: $proc='&outrow';
1161: }
1162: if ($sheettype eq 'assesscalc') {
1163: $maxred=1;
1164: } else {
1165: $maxred=26;
1166: }
1167: if (&getfa($safeeval,$n)=~/^[\~\-]/) { $maxred=1; }
1168: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1169: foreach ($safeeval->reval($proc.'('.$n.')')) {
1170: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1171: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1172: if ((($vl ne '') || ($vl eq '0')) &&
1173: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1174: if ($showf==0) { $vl=$_; }
1175: unless ($ENV{'form.showcsv'}) {
1176: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1177: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1178: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1179: if ($vl eq '') {
1180: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1181: }
1182: $rowdata.=
1183: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
1184: '</a></td>';
1185: } else {
1186: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1187: }
1188: } else {
1189: $rowdata.=',"'.$vl.'"';
1190: }
1191: $showf++;
1192: } # End of foreach($safeval...)
1193: if ($ENV{'form.showall'} || ($dataflag)) {
1194: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1195: } else {
1196: return '';
1197: }
1198: }
1199:
1200: # ------------------------------------------------------------- Print out sheet
1201:
1202: sub outsheet {
1203: my ($r,$safeeval)=@_;
1204: my $maxred;
1205: my $realm;
1206: if (&gettype($safeeval) eq 'assesscalc') {
1207: $maxred=1;
1208: $realm='Assessment';
1209: } elsif (&gettype($safeeval) eq 'studentcalc') {
1210: $maxred=26;
1211: $realm='User';
1212: } else {
1213: $maxred=26;
1214: $realm='Course';
1215: }
1216: my $maxyellow=52-$maxred;
1217: my $tabledata;
1218: unless ($ENV{'form.showcsv'}) {
1219: $tabledata=
1220: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1221: $realm.'</font></th>'.
1222: '<td bgcolor=#FFDDDD colspan='.$maxred.
1223: '><b><font size=+1>Import</font></b></td>'.
1224: '<td colspan='.$maxyellow.
1225: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1226: my $showf=0;
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: $showf++;
1232: if ($showf<=$maxred) {
1233: $tabledata.='<td bgcolor="#FFDDDD">';
1234: } else {
1235: $tabledata.='<td>';
1236: }
1237: $tabledata.="<b><font size=+1>$_</font></b></td>";
1238: }
1239: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1240: } else { $tabledata='<pre>'; }
1241:
1242: $r->print($tabledata);
1243:
1244: my $row;
1245: my $maxrow=&getmaxrow($safeeval);
1246:
1247: my @sortby=();
1248: my @sortidx=();
1249: for ($row=1;$row<=$maxrow;$row++) {
1250: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1251: $sortidx[$row-1]=$row-1;
1252: }
1253: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1254:
1255: my $what='Student';
1256: if (&gettype($safeeval) eq 'assesscalc') {
1257: $what='Item';
1258: } elsif (&gettype($safeeval) eq 'studentcalc') {
1259: $what='Assessment';
1260: }
1261:
1262: my $n=0;
1263: for ($row=0;$row<$maxrow;$row++) {
1264: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1265: if ($thisrow) {
1266: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1267: $r->print("</table>\n<br>\n");
1268: $r->rflush();
1269: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1270: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1271: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1272: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1273: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1274: $r->print('<td>'.$_.'</td>');
1275: }
1276: $r->print('</tr>');
1277: }
1278: $n++;
1279: $r->print($thisrow);
1280: }
1281: }
1282: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1283: }
1284:
1285: #
1286: # ----------------------------------------------- Read list of available sheets
1287: #
1288: sub othersheets {
1289: my ($safeeval,$stype)=@_;
1290: #
1291: my $cnum=&getcnum($safeeval);
1292: my $cdom=&getcdom($safeeval);
1293: my $chome=&getchome($safeeval);
1294: #
1295: my @alternatives=();
1296: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1297: my ($tmp) = keys(%results);
1298: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1299: @alternatives = sort (keys(%results));
1300: }
1301: return @alternatives;
1302: }
1303:
1304:
1305: #
1306: # -------------------------------------- Parse a spreadsheet
1307: #
1308: sub parse_sheet {
1309: # $sheetxml is a scalar reference or a scalar
1310: my ($sheetxml) = @_;
1311: if (! ref($sheetxml)) {
1312: my $tmp = $sheetxml;
1313: $sheetxml = \$tmp;
1314: }
1315: my %f;
1316: my $parser=HTML::TokeParser->new($sheetxml);
1317: my $token;
1318: while ($token=$parser->get_token) {
1319: if ($token->[0] eq 'S') {
1320: if ($token->[1] eq 'field') {
1321: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1322: $parser->get_text('/field');
1323: }
1324: if ($token->[1] eq 'template') {
1325: $f{'template_'.$token->[2]->{'col'}}=
1326: $parser->get_text('/template');
1327: }
1328: }
1329: }
1330: return \%f;
1331: }
1332:
1333: #
1334: # -------------------------------------- Read spreadsheet formulas for a course
1335: #
1336:
1337: sub readsheet {
1338: my ($safeeval,$fn)=@_;
1339: my $stype=&gettype($safeeval);
1340: my $cnum=&getcnum($safeeval);
1341: my $cdom=&getcdom($safeeval);
1342: my $chome=&getchome($safeeval);
1343:
1344: if (! defined($fn)) {
1345: # There is no filename. Look for defaults in course and global, cache
1346: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1347: my %tmphash = &Apache::lonnet::get('environment',
1348: ['spreadsheet_default_'.$stype],
1349: $cdom,$cnum);
1350: my ($tmp) = keys(%tmphash);
1351: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1352: $fn = 'default_'.$stype;
1353: } else {
1354: $fn = $tmphash{'spreadsheet_default_'.$stype};
1355: }
1356: unless (($fn) && ($fn!~/^error\:/)) {
1357: $fn='default_'.$stype;
1358: }
1359: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1360: }
1361: }
1362:
1363: # ---------------------------------------------------------- fn now has a value
1364:
1365: &setfilename($safeeval,$fn);
1366:
1367: # ------------------------------------------------------ see if sheet is cached
1368: my $fstring='';
1369: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1370: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1371: } else {
1372:
1373: # ---------------------------------------------------- Not cached, need to read
1374:
1375: my %f=();
1376:
1377: if ($fn=~/^default\_/) {
1378: my $sheetxml='';
1379: my $fh;
1380: my $dfn=$fn;
1381: $dfn=~s/\_/\./g;
1382: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1383: $sheetxml=join('',<$fh>);
1384: } else {
1385: $sheetxml='<field row="0" col="A">"Error"</field>';
1386: }
1387: %f=%{&parse_sheet(\$sheetxml)};
1388: } elsif($fn=~/\/*\.spreadsheet$/) {
1389: my $sheetxml=&Apache::lonnet::getfile
1390: (&Apache::lonnet::filelocation('',$fn));
1391: if ($sheetxml == -1) {
1392: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1393: .$fn.'"</field>';
1394: }
1395: %f=%{&parse_sheet(\$sheetxml)};
1396: } else {
1397: my $sheet='';
1398: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1399: my ($tmp) = keys(%tmphash);
1400: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1401: foreach (keys(%tmphash)) {
1402: $f{$_}=$tmphash{$_};
1403: }
1404: }
1405: }
1406: # --------------------------------------------------------------- Cache and set
1407: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1408: &setformulas($safeeval,%f);
1409: }
1410: }
1411:
1412: # -------------------------------------------------------- Make new spreadsheet
1413:
1414: sub makenewsheet {
1415: my ($uname,$udom,$stype,$usymb)=@_;
1416: my $safeeval=initsheet($stype);
1417: $safeeval->reval(
1418: '$uname="'.$uname.
1419: '";$udom="'.$udom.
1420: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1421: '";$sheettype="'.$stype.
1422: '";$usymb="'.$usymb.
1423: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1424: $ENV{'request.course.id'}).
1425: '";$cid="'.$ENV{'request.course.id'}.
1426: '";$cfn="'.$ENV{'request.course.fn'}.
1427: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1428: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1429: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1430: return $safeeval;
1431: }
1432:
1433: # ------------------------------------------------------------ Save spreadsheet
1434:
1435: sub writesheet {
1436: my ($safeeval,$makedef)=@_;
1437: my $cid=&getcid($safeeval);
1438: if (&Apache::lonnet::allowed('opa',$cid)) {
1439: my %f=&getformulas($safeeval);
1440: my $stype=&gettype($safeeval);
1441: my $cnum=&getcnum($safeeval);
1442: my $cdom=&getcdom($safeeval);
1443: my $chome=&getchome($safeeval);
1444: my $fn=&getfilename($safeeval);
1445:
1446: # ------------------------------------------------------------- Cache new sheet
1447: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1448: # ----------------------------------------------------------------- Write sheet
1449: my $sheetdata='';
1450: foreach (keys(%f)) {
1451: unless ($f{$_} eq 'import') {
1452: $sheetdata.=&Apache::lonnet::escape($_).'='.
1453: &Apache::lonnet::escape($f{$_}).'&';
1454: }
1455: }
1456: $sheetdata=~s/\&$//;
1457: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1458: $sheetdata,$chome);
1459: if ($reply eq 'ok') {
1460: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1461: $stype.'_spreadsheets:'.
1462: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1463: $ENV{'user.domain'},
1464: $chome);
1465: if ($reply eq 'ok') {
1466: if ($makedef) {
1467: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1468: ':environment:spreadsheet_default_'.$stype.'='.
1469: &Apache::lonnet::escape($fn),
1470: $chome);
1471: } else {
1472: return $reply;
1473: }
1474: } else {
1475: return $reply;
1476: }
1477: } else {
1478: return $reply;
1479: }
1480: }
1481: return 'unauthorized';
1482: }
1483:
1484: # ----------------------------------------------- Make a temp copy of the sheet
1485: # "Modified workcopy" - interactive only
1486: #
1487:
1488: sub tmpwrite {
1489: my $safeeval=shift;
1490: my $fn=$ENV{'user.name'}.'_'.
1491: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1492: &getfilename($safeeval);
1493: $fn=~s/\W/\_/g;
1494: $fn=$tmpdir.$fn.'.tmp';
1495: my $fh;
1496: if ($fh=Apache::File->new('>'.$fn)) {
1497: print $fh join("\n",&getformulas($safeeval));
1498: }
1499: }
1500:
1501: # ---------------------------------------------------------- Read the temp copy
1502:
1503: sub tmpread {
1504: my ($safeeval,$nfield,$nform)=@_;
1505: my $fn=$ENV{'user.name'}.'_'.
1506: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1507: &getfilename($safeeval);
1508: $fn=~s/\W/\_/g;
1509: $fn=$tmpdir.$fn.'.tmp';
1510: my $fh;
1511: my %fo=();
1512: my $countrows=0;
1513: if ($fh=Apache::File->new($fn)) {
1514: my $name;
1515: while ($name=<$fh>) {
1516: chomp($name);
1517: my $value=<$fh>;
1518: chomp($value);
1519: $fo{$name}=$value;
1520: if ($name=~/^A(\d+)$/) {
1521: if ($1>$countrows) {
1522: $countrows=$1;
1523: }
1524: }
1525: }
1526: }
1527: if ($nform eq 'changesheet') {
1528: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1529: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1530: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1531: }
1532: } elsif ($nfield eq 'insertrow') {
1533: $countrows++;
1534: my $newrow=substr('000000'.$countrows,-7);
1535: if ($nform eq 'top') {
1536: $fo{'A'.$countrows}='--- '.$newrow;
1537: } else {
1538: $fo{'A'.$countrows}='~~~ '.$newrow;
1539: }
1540: } else {
1541: if ($nfield) { $fo{$nfield}=$nform; }
1542: }
1543: &setformulas($safeeval,%fo);
1544: }
1545:
1546: # ================================================================== Parameters
1547: # -------------------------------------------- Figure out a cascading parameter
1548: #
1549: # For this function to work
1550: #
1551: # * parmhash needs to be tied
1552: # * courseopt and useropt need to be initialized for this user and course
1553: #
1554:
1555: sub parmval {
1556: my ($what,$safeeval)=@_;
1557: my $cid=&getcid($safeeval);
1558: my $csec=&getcsec($safeeval);
1559: my $uname=&getuname($safeeval);
1560: my $udom=&getudom($safeeval);
1561: my $symb=&getusymb($safeeval);
1562:
1563: unless ($symb) { return ''; }
1564: my $result='';
1565:
1566: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1567: # ----------------------------------------------------- Cascading lookup scheme
1568: my $rwhat=$what;
1569: $what=~s/^parameter\_//;
1570: $what=~s/\_([^\_]+)$/\.$1/;
1571:
1572: my $symbparm=$symb.'.'.$what;
1573: my $mapparm=$mapname.'___(all).'.$what;
1574: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1575:
1576: my $seclevel=
1577: $usercourseprefix.'.['.
1578: $csec.'].'.$what;
1579: my $seclevelr=
1580: $usercourseprefix.'.['.
1581: $csec.'].'.$symbparm;
1582: my $seclevelm=
1583: $usercourseprefix.'.['.
1584: $csec.'].'.$mapparm;
1585:
1586: my $courselevel=
1587: $usercourseprefix.'.'.$what;
1588: my $courselevelr=
1589: $usercourseprefix.'.'.$symbparm;
1590: my $courselevelm=
1591: $usercourseprefix.'.'.$mapparm;
1592:
1593: # ---------------------------------------------------------- fourth, check user
1594:
1595: if ($uname) {
1596:
1597: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1598:
1599: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1600:
1601: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1602:
1603: }
1604:
1605: # --------------------------------------------------------- third, check course
1606:
1607: if ($csec) {
1608:
1609: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1610:
1611: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1612:
1613: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1614:
1615: }
1616:
1617: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1618:
1619: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1620:
1621: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1622:
1623: # ----------------------------------------------------- second, check map parms
1624:
1625: my $thisparm=$parmhash{$symbparm};
1626: if ($thisparm) { return $thisparm; }
1627:
1628: # -------------------------------------------------------- first, check default
1629:
1630: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1631:
1632: }
1633:
1634: # ---------------------------------------------- Update rows for course listing
1635:
1636: sub updateclasssheet {
1637: my $safeeval=shift;
1638: my $cnum=&getcnum($safeeval);
1639: my $cdom=&getcdom($safeeval);
1640: my $cid=&getcid($safeeval);
1641: my $chome=&getchome($safeeval);
1642:
1643: # ---------------------------------------------- Read class list and row labels
1644:
1645: my $classlst=&Apache::lonnet::reply
1646: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1647: my %currentlist=();
1648: my $now=time;
1649: unless ($classlst=~/^error\:/) {
1650: foreach (split(/\&/,$classlst)) {
1651: my ($name,$value)=split(/\=/,$_);
1652: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1653: my $active=1;
1654: if (($end) && ($now>$end)) { $active=0; }
1655: if ($active) {
1656: my $rowlabel='';
1657: $name=&Apache::lonnet::unescape($name);
1658: my ($sname,$sdom)=split(/\:/,$name);
1659: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1660: if ($ssec==-1) {
1661: unless ($ENV{'form.showcsv'}) {
1662: $rowlabel='<font color=red>Data not available: '.$name.
1663: '</font>';
1664: } else {
1665: $rowlabel='ERROR","'.$name.
1666: '","Data not available","","","';
1667: }
1668: } else {
1669: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1670: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1671: ':environment:firstname&middlename&lastname&generation',
1672: &Apache::lonnet::homeserver($sname,$sdom));
1673: unless ($ENV{'form.showcsv'}) {
1674: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1675: '&udom='.$sdom.'">'.
1676: $ssec.' '.$reply{$sname}.'<br>';
1677: foreach ( split(/\&/,$reply)) {
1678: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1679: }
1680: $rowlabel.='</a>';
1681: } else {
1682: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1683: my $ncount=0;
1684: foreach (split(/\&/,$reply)) {
1685: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1686: $ncount++;
1687: }
1688: unless ($ncount==4) { $rowlabel.=',""'; }
1689: $rowlabel=~s/\"$//;
1690: }
1691: }
1692: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1693: }
1694: } # end of foreach (split(/\&/,$classlst))
1695: #
1696: # -------------------- Find discrepancies between the course row table and this
1697: #
1698: my %f=&getformulas($safeeval);
1699: my $changed=0;
1700:
1701: my $maxrow=0;
1702: my %existing=();
1703:
1704: # ----------------------------------------------------------- Now obsolete rows
1705: foreach (keys(%f)) {
1706: if ($_=~/^A(\d+)/) {
1707: $maxrow=($1>$maxrow)?$1:$maxrow;
1708: $existing{$f{$_}}=1;
1709: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1710: ($f{$_}=~/^(\~\~\~|\-\-\-)/)) {
1711: $f{$_}='!!! Obsolete';
1712: $changed=1;
1713: }
1714: }
1715: }
1716:
1717: # -------------------------------------------------------- New and unknown keys
1718:
1719: foreach (sort keys(%currentlist)) {
1720: unless ($existing{$_}) {
1721: $changed=1;
1722: $maxrow++;
1723: $f{'A'.$maxrow}=$_;
1724: }
1725: }
1726:
1727: if ($changed) { &setformulas($safeeval,%f); }
1728:
1729: &setmaxrow($safeeval,$maxrow);
1730: &setrowlabels($safeeval,%currentlist);
1731:
1732: } else {
1733: return 'Could not access course data';
1734: }
1735: }
1736:
1737: # ----------------------------------- Update rows for student and assess sheets
1738:
1739: sub updatestudentassesssheet {
1740: my $safeeval=shift;
1741: my %bighash;
1742: my $stype=&gettype($safeeval);
1743: my %current=();
1744: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1745: # -------------------------------------------------------------------- Tie hash
1746: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1747: &GDBM_READER,0640)) {
1748: # --------------------------------------------------------- Get all assessments
1749:
1750: my %allkeys=('timestamp' =>
1751: 'Timestamp of Last Transaction<br>timestamp',
1752: 'subnumber' =>
1753: 'Number of Submissions<br>subnumber',
1754: 'tutornumber' =>
1755: 'Number of Tutor Responses<br>tutornumber',
1756: 'totalpoints' =>
1757: 'Total Points Granted<br>totalpoints');
1758:
1759: my $adduserstr='';
1760: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1761: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1762: $adduserstr='&uname='.&getuname($safeeval).
1763: '&udom='.&getudom($safeeval);
1764: }
1765:
1766: my %allassess=('_feedback' =>
1767: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1768: '">Feedback</a>',
1769: '_evaluation' =>
1770: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1771: '">Evaluation</a>',
1772: '_tutoring' =>
1773: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1774: '">Tutoring</a>',
1775: '_discussion' =>
1776: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1777: '">Discussion</a>'
1778: );
1779:
1780: foreach (keys(%bighash)) {
1781: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1782: my $mapid=$1;
1783: my $resid=$2;
1784: my $id=$mapid.'.'.$resid;
1785: my $srcf=$bighash{$_};
1786: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1787: my $symb=
1788: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1789: '___'.$resid.'___'.
1790: &Apache::lonnet::declutter($srcf);
1791: $allassess{$symb}=
1792: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1793: $bighash{'title_'.$id}.'</a>';
1794: if ($stype eq 'assesscalc') {
1795: foreach (split(/\,/,
1796: &Apache::lonnet::metadata($srcf,'keys'))) {
1797: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1798: my $key=$_;
1799: my $display=
1800: &Apache::lonnet::metadata($srcf,$key.'.display');
1801: unless ($display) {
1802: $display.=
1803: &Apache::lonnet::metadata($srcf,$key.'.name');
1804: }
1805: $display.='<br>'.$key;
1806: $allkeys{$key}=$display;
1807: }
1808: } # end of foreach
1809: }
1810: }
1811: }
1812: } # end of foreach (keys(%bighash))
1813: untie(%bighash);
1814:
1815: #
1816: # %allkeys has a list of storage and parameter displays by unikey
1817: # %allassess has a list of all resource displays by symb
1818: #
1819:
1820: if ($stype eq 'assesscalc') {
1821: %current=%allkeys;
1822: } elsif ($stype eq 'studentcalc') {
1823: %current=%allassess;
1824: }
1825: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1826: join('___;___',%current);
1827: } else {
1828: return 'Could not access course data';
1829: }
1830: # ------------------------------------------------------ Get current from cache
1831: } else {
1832: %current=split(/\_\_\_\;\_\_\_/,
1833: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1834: }
1835: # -------------------- Find discrepancies between the course row table and this
1836: #
1837: my %f=&getformulas($safeeval);
1838: my $changed=0;
1839:
1840: my $maxrow=0;
1841: my %existing=();
1842:
1843: # ----------------------------------------------------------- Now obsolete rows
1844: foreach (keys(%f)) {
1845: if ($_=~/^A(\d+)/) {
1846: $maxrow=($1>$maxrow)?$1:$maxrow;
1847: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1848: $existing{$usy}=1;
1849: unless ((defined($current{$usy})) || (!$1) ||
1850: ($f{$_}=~/^(\~\~\~|\-\-\-)/)){
1851: $f{$_}='!!! Obsolete';
1852: $changed=1;
1853: } elsif ($ufn) {
1854: $current{$usy}
1855: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1856: }
1857: }
1858: }
1859:
1860: # -------------------------------------------------------- New and unknown keys
1861:
1862: foreach (keys(%current)) {
1863: unless ($existing{$_}) {
1864: $changed=1;
1865: $maxrow++;
1866: $f{'A'.$maxrow}=$_;
1867: }
1868: }
1869:
1870: if ($changed) { &setformulas($safeeval,%f); }
1871:
1872: &setmaxrow($safeeval,$maxrow);
1873: &setrowlabels($safeeval,%current);
1874:
1875: undef %current;
1876: undef %existing;
1877: }
1878:
1879: # ------------------------------------------------ Load data for one assessment
1880:
1881: sub loadstudent {
1882: my $safeeval=shift;
1883: my %c=();
1884: my %f=&getformulas($safeeval);
1885: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1886: %cachedstores=();
1887: {
1888: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1889: &getuname($safeeval).':'.
1890: &getcid($safeeval),
1891: &getuhome($safeeval));
1892: unless ($reply=~/^error\:/) {
1893: foreach ( split(/\&/,$reply)) {
1894: my ($name,$value)=split(/\=/,$_);
1895: $cachedstores{&Apache::lonnet::unescape($name)}=
1896: &Apache::lonnet::unescape($value);
1897: }
1898: }
1899: }
1900: my @assessdata=();
1901: foreach (keys(%f)) {
1902: if ($_=~/^A(\d+)/) {
1903: my $row=$1;
1904: unless (($f{$_}=~/^[\!\~\-]/) || ($row==0)) {
1905: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1906: @assessdata=&exportsheet(&getuname($safeeval),
1907: &getudom($safeeval),
1908: 'assesscalc',$usy,$ufn);
1909: my $index=0;
1910: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1911: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1912: if ($assessdata[$index]) {
1913: my $col=$_;
1914: if ($assessdata[$index]=~/\D/) {
1915: $c{$col.$row}="'".$assessdata[$index]."'";
1916: } else {
1917: $c{$col.$row}=$assessdata[$index];
1918: }
1919: unless ($col eq 'A') {
1920: $f{$col.$row}='import';
1921: }
1922: }
1923: $index++;
1924: }
1925: }
1926: }
1927: }
1928: $cachedassess='';
1929: undef %cachedstores;
1930: &setformulas($safeeval,%f);
1931: &setconstants($safeeval,%c);
1932: }
1933:
1934: # --------------------------------------------------- Load data for one student
1935:
1936: sub loadcourse {
1937: my ($safeeval,$r)=@_;
1938: my %c=();
1939: my %f=&getformulas($safeeval);
1940: my $total=0;
1941: foreach (keys(%f)) {
1942: if ($_=~/^A(\d+)/) {
1943: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1944: }
1945: }
1946: my $now=0;
1947: my $since=time;
1948: $r->print(<<ENDPOP);
1949: <script>
1950: popwin=open('','popwin','width=400,height=100');
1951: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1952: '<h3>Spreadsheet Calculation Progress</h3>'+
1953: '<form name=popremain>'+
1954: '<input type=text size=35 name=remaining value=Starting></form>'+
1955: '</body></html>');
1956: popwin.document.close();
1957: </script>
1958: ENDPOP
1959: $r->rflush();
1960: foreach (keys(%f)) {
1961: if ($_=~/^A(\d+)/) {
1962: my $row=$1;
1963: unless (($f{$_}=~/^[\!\~\-]/) || ($row==0)) {
1964: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1965: 'studentcalc');
1966: undef %userrdatas;
1967: $now++;
1968: $r->print('<script>popwin.document.popremain.remaining.value="'.
1969: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1970: ' secs remaining";</script>');
1971: $r->rflush();
1972:
1973: my $index=0;
1974: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1975: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1976: if ($studentdata[$index]) {
1977: my $col=$_;
1978: if ($studentdata[$index]=~/\D/) {
1979: $c{$col.$row}="'".$studentdata[$index]."'";
1980: } else {
1981: $c{$col.$row}=$studentdata[$index];
1982: }
1983: unless ($col eq 'A') {
1984: $f{$col.$row}='import';
1985: }
1986: }
1987: $index++;
1988: }
1989: }
1990: }
1991: }
1992: &setformulas($safeeval,%f);
1993: &setconstants($safeeval,%c);
1994: $r->print('<script>popwin.close()</script>');
1995: $r->rflush();
1996: }
1997:
1998: # ------------------------------------------------ Load data for one assessment
1999:
2000: sub loadassessment {
2001: my $safeeval=shift;
2002:
2003: my $uhome=&getuhome($safeeval);
2004: my $uname=&getuname($safeeval);
2005: my $udom=&getudom($safeeval);
2006: my $symb=&getusymb($safeeval);
2007: my $cid=&getcid($safeeval);
2008: my $cnum=&getcnum($safeeval);
2009: my $cdom=&getcdom($safeeval);
2010: my $chome=&getchome($safeeval);
2011:
2012: my $namespace;
2013: unless ($namespace=$cid) { return ''; }
2014:
2015: # ----------------------------------------------------------- Get stored values
2016:
2017: my %returnhash=();
2018:
2019: if ($cachedassess eq $uname.':'.$udom) {
2020: #
2021: # get data out of the dumped stores
2022: #
2023:
2024: my $version=$cachedstores{'version:'.$symb};
2025: my $scope;
2026: for ($scope=1;$scope<=$version;$scope++) {
2027: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2028: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2029: }
2030: }
2031:
2032: } else {
2033: #
2034: # restore individual
2035: #
2036:
2037: my $answer=&Apache::lonnet::reply(
2038: "restore:$udom:$uname:".
2039: &Apache::lonnet::escape($namespace).":".
2040: &Apache::lonnet::escape($symb),$uhome);
2041: foreach (split(/\&/,$answer)) {
2042: my ($name,$value)=split(/\=/,$_);
2043: $returnhash{&Apache::lonnet::unescape($name)}=
2044: &Apache::lonnet::unescape($value);
2045: }
2046: my $version;
2047: for ($version=1;$version<=$returnhash{'version'};$version++) {
2048: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2049: $returnhash{$_}=$returnhash{$version.':'.$_};
2050: }
2051: }
2052: }
2053: # ----------------------------- returnhash now has all stores for this resource
2054:
2055: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
2056:
2057: my @oldkeys=keys %returnhash;
2058:
2059: foreach (@oldkeys) {
2060: my $name=$_;
2061: my $value=$returnhash{$_};
2062: delete $returnhash{$_};
2063: $name=~s/\_/\./g;
2064: $returnhash{$name}=$value;
2065: }
2066:
2067: # ---------------------------- initialize coursedata and userdata for this user
2068: undef %courseopt;
2069: undef %useropt;
2070:
2071: my $userprefix=$uname.'_'.$udom.'_';
2072:
2073: unless ($uhome eq 'no_host') {
2074: # -------------------------------------------------------------- Get coursedata
2075: unless
2076: ((time-$courserdatas{$cid.'.last_cache'})<240) {
2077: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2078: ':resourcedata',$chome);
2079: if ($reply!~/^error\:/) {
2080: $courserdatas{$cid}=$reply;
2081: $courserdatas{$cid.'.last_cache'}=time;
2082: }
2083: }
2084: foreach (split(/\&/,$courserdatas{$cid})) {
2085: my ($name,$value)=split(/\=/,$_);
2086: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2087: &Apache::lonnet::unescape($value);
2088: }
2089: # --------------------------------------------------- Get userdata (if present)
2090: unless
2091: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2092: my $reply=
2093: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2094: if ($reply!~/^error\:/) {
2095: $userrdatas{$uname.'___'.$udom}=$reply;
2096: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2097: }
2098: }
2099: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2100: my ($name,$value)=split(/\=/,$_);
2101: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2102: &Apache::lonnet::unescape($value);
2103: }
2104: }
2105: # ----------------- now courseopt, useropt initialized for this user and course
2106: # (used by parmval)
2107:
2108: #
2109: # Load keys for this assessment only
2110: #
2111: my %thisassess=();
2112: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2113:
2114: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2115: $thisassess{$_}=1;
2116: }
2117: #
2118: # Load parameters
2119: #
2120: my %c=();
2121:
2122: if (tie(%parmhash,'GDBM_File',
2123: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
2124: my %f=&getformulas($safeeval);
2125: foreach (keys(%f)) {
2126: if ($_=~/^A/) {
2127: unless ($f{$_}=~/^[\!\~\-]/) {
2128: if ($f{$_}=~/^parameter/) {
2129: if ($thisassess{$f{$_}}) {
2130: my $val=&parmval($f{$_},$safeeval);
2131: $c{$_}=$val;
2132: $c{$f{$_}}=$val;
2133: }
2134: } else {
2135: my $key=$f{$_};
2136: my $ckey=$key;
2137: $key=~s/^stores\_/resource\./;
2138: $key=~s/\_/\./g;
2139: $c{$_}=$returnhash{$key};
2140: $c{$ckey}=$returnhash{$key};
2141: }
2142: }
2143: }
2144: }
2145: untie(%parmhash);
2146: }
2147: &setconstants($safeeval,%c);
2148: }
2149:
2150: # --------------------------------------------------------- Various form fields
2151:
2152: sub textfield {
2153: my ($title,$name,$value)=@_;
2154: return "\n<p><b>$title:</b><br>".
2155: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2156: }
2157:
2158: sub hiddenfield {
2159: my ($name,$value)=@_;
2160: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2161: }
2162:
2163: sub selectbox {
2164: my ($title,$name,$value,%options)=@_;
2165: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2166: foreach (sort keys(%options)) {
2167: $selout.='<option value="'.$_.'"';
2168: if ($_ eq $value) { $selout.=' selected'; }
2169: $selout.='>'.$options{$_}.'</option>';
2170: }
2171: return $selout.'</select>';
2172: }
2173:
2174: # =============================================== Update information in a sheet
2175: #
2176: # Add new users or assessments, etc.
2177: #
2178:
2179: sub updatesheet {
2180: my $safeeval=shift;
2181: my $stype=&gettype($safeeval);
2182: if ($stype eq 'classcalc') {
2183: return &updateclasssheet($safeeval);
2184: } else {
2185: return &updatestudentassesssheet($safeeval);
2186: }
2187: }
2188:
2189: # =================================================== Load the rows for a sheet
2190: #
2191: # Import the data for rows
2192: #
2193:
2194: sub loadrows {
2195: my ($safeeval,$r)=@_;
2196: my $stype=&gettype($safeeval);
2197: if ($stype eq 'classcalc') {
2198: &loadcourse($safeeval,$r);
2199: } elsif ($stype eq 'studentcalc') {
2200: &loadstudent($safeeval);
2201: } else {
2202: &loadassessment($safeeval);
2203: }
2204: }
2205:
2206: # ======================================================= Forced recalculation?
2207:
2208: sub checkthis {
2209: my ($keyname,$time)=@_;
2210: return ($time<$expiredates{$keyname});
2211: }
2212: sub forcedrecalc {
2213: my ($uname,$udom,$stype,$usymb)=@_;
2214: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2215: my $time=$oldsheets{$key.'.time'};
2216: if ($ENV{'form.forcerecalc'}) { return 1; }
2217: unless ($time) { return 1; }
2218: if ($stype eq 'assesscalc') {
2219: my $map=(split(/\_\_\_/,$usymb))[0];
2220: if (&checkthis('::assesscalc:',$time) ||
2221: &checkthis('::assesscalc:'.$map,$time) ||
2222: &checkthis('::assesscalc:'.$usymb,$time) ||
2223: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2224: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2225: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2226: return 1;
2227: }
2228: } else {
2229: if (&checkthis('::studentcalc:',$time) ||
2230: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2231: return 1;
2232: }
2233: }
2234: return 0;
2235: }
2236:
2237: # ============================================================== Export handler
2238: #
2239: # Non-interactive call from with program
2240: #
2241:
2242: sub exportsheet {
2243: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2244: my @exportarr=();
2245:
2246: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2247: $fn='default_'.$1;
2248: }
2249:
2250: #
2251: # Check if cached
2252: #
2253:
2254: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2255: my $found='';
2256:
2257: if ($oldsheets{$key}) {
2258: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2259: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2260: if ($name eq $fn) {
2261: $found=$value;
2262: }
2263: }
2264: }
2265:
2266: unless ($found) {
2267: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2268: if ($oldsheets{$key}) {
2269: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2270: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2271: if ($name eq $fn) {
2272: $found=$value;
2273: }
2274: }
2275: }
2276: }
2277: #
2278: # Check if still valid
2279: #
2280: if ($found) {
2281: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2282: $found='';
2283: }
2284: }
2285:
2286: if ($found) {
2287: #
2288: # Return what was cached
2289: #
2290: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2291:
2292: } else {
2293: #
2294: # Not cached
2295: #
2296:
2297: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2298: &readsheet($thissheet,$fn);
2299: &updatesheet($thissheet);
2300: &loadrows($thissheet);
2301: &calcsheet($thissheet);
2302: @exportarr=&exportdata($thissheet);
2303: #
2304: # Store now
2305: #
2306: my $cid=$ENV{'request.course.id'};
2307: my $current='';
2308: if ($stype eq 'studentcalc') {
2309: $current=&Apache::lonnet::reply('get:'.
2310: $ENV{'course.'.$cid.'.domain'}.':'.
2311: $ENV{'course.'.$cid.'.num'}.
2312: ':nohist_calculatedsheets:'.
2313: &Apache::lonnet::escape($key),
2314: $ENV{'course.'.$cid.'.home'});
2315: } else {
2316: $current=&Apache::lonnet::reply('get:'.
2317: &getudom($thissheet).':'.
2318: &getuname($thissheet).
2319: ':nohist_calculatedsheets_'.
2320: $ENV{'request.course.id'}.':'.
2321: &Apache::lonnet::escape($key),
2322: &getuhome($thissheet));
2323:
2324: }
2325: my %currentlystored=();
2326: unless ($current=~/^error\:/) {
2327: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2328: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2329: $currentlystored{$name}=$value;
2330: }
2331: }
2332: $currentlystored{$fn}=join('___;___',@exportarr);
2333:
2334: my $newstore='';
2335: foreach (keys(%currentlystored)) {
2336: if ($newstore) { $newstore.='___&___'; }
2337: $newstore.=$_.'___=___'.$currentlystored{$_};
2338: }
2339: my $now=time;
2340: if ($stype eq 'studentcalc') {
2341: &Apache::lonnet::reply('put:'.
2342: $ENV{'course.'.$cid.'.domain'}.':'.
2343: $ENV{'course.'.$cid.'.num'}.
2344: ':nohist_calculatedsheets:'.
2345: &Apache::lonnet::escape($key).'='.
2346: &Apache::lonnet::escape($newstore).'&'.
2347: &Apache::lonnet::escape($key).'.time='.$now,
2348: $ENV{'course.'.$cid.'.home'});
2349: } else {
2350: &Apache::lonnet::reply('put:'.
2351: &getudom($thissheet).':'.
2352: &getuname($thissheet).
2353: ':nohist_calculatedsheets_'.
2354: $ENV{'request.course.id'}.':'.
2355: &Apache::lonnet::escape($key).'='.
2356: &Apache::lonnet::escape($newstore).'&'.
2357: &Apache::lonnet::escape($key).'.time='.$now,
2358: &getuhome($thissheet));
2359: }
2360: }
2361: return @exportarr;
2362: }
2363: # ============================================================ Expiration Dates
2364: #
2365: # Load previously cached student spreadsheets for this course
2366: #
2367:
2368: sub expirationdates {
2369: undef %expiredates;
2370: my $cid=$ENV{'request.course.id'};
2371: my $reply=&Apache::lonnet::reply('dump:'.
2372: $ENV{'course.'.$cid.'.domain'}.':'.
2373: $ENV{'course.'.$cid.'.num'}.
2374: ':nohist_expirationdates',
2375: $ENV{'course.'.$cid.'.home'});
2376: unless ($reply=~/^error\:/) {
2377: foreach (split(/\&/,$reply)) {
2378: my ($name,$value)=split(/\=/,$_);
2379: $expiredates{&Apache::lonnet::unescape($name)}
2380: =&Apache::lonnet::unescape($value);
2381: }
2382: }
2383: }
2384:
2385: # ===================================================== Calculated sheets cache
2386: #
2387: # Load previously cached student spreadsheets for this course
2388: #
2389:
2390: sub cachedcsheets {
2391: my $cid=$ENV{'request.course.id'};
2392: my $reply=&Apache::lonnet::reply('dump:'.
2393: $ENV{'course.'.$cid.'.domain'}.':'.
2394: $ENV{'course.'.$cid.'.num'}.
2395: ':nohist_calculatedsheets',
2396: $ENV{'course.'.$cid.'.home'});
2397: unless ($reply=~/^error\:/) {
2398: foreach ( split(/\&/,$reply)) {
2399: my ($name,$value)=split(/\=/,$_);
2400: $oldsheets{&Apache::lonnet::unescape($name)}
2401: =&Apache::lonnet::unescape($value);
2402: }
2403: }
2404: }
2405:
2406: # ===================================================== Calculated sheets cache
2407: #
2408: # Load previously cached assessment spreadsheets for this student
2409: #
2410:
2411: sub cachedssheets {
2412: my ($sname,$sdom,$shome)=@_;
2413: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2414: my $cid=$ENV{'request.course.id'};
2415: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2416: ':nohist_calculatedsheets_'.
2417: $ENV{'request.course.id'},
2418: $shome);
2419: unless ($reply=~/^error\:/) {
2420: foreach ( split(/\&/,$reply)) {
2421: my ($name,$value)=split(/\=/,$_);
2422: $oldsheets{&Apache::lonnet::unescape($name)}
2423: =&Apache::lonnet::unescape($value);
2424: }
2425: }
2426: $loadedcaches{$sname.'_'.$sdom}=1;
2427: }
2428: }
2429:
2430: # ===================================================== Calculated sheets cache
2431: #
2432: # Load previously cached assessment spreadsheets for this student
2433: #
2434:
2435: # ================================================================ Main handler
2436: #
2437: # Interactive call to screen
2438: #
2439: #
2440:
2441:
2442: sub handler {
2443: my $r=shift;
2444:
2445: if ($r->header_only) {
2446: $r->content_type('text/html');
2447: $r->send_http_header;
2448: return OK;
2449: }
2450:
2451: # ---------------------------------------------------- Global directory configs
2452:
2453: $includedir=$r->dir_config('lonIncludes');
2454: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2455:
2456: # ----------------------------------------------------- Needs to be in a course
2457:
2458: if ($ENV{'request.course.fn'}) {
2459:
2460: # --------------------------- Get query string for limited number of parameters
2461:
2462: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2463: ['uname','udom','usymb','ufn']);
2464:
2465: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2466: $ENV{'form.ufn'}='default_'.$1;
2467: }
2468:
2469: # -------------------------------------- Interactive loading of specific sheet?
2470: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2471: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2472: }
2473: # ------------------------------------------- Nothing there? Must be login user
2474:
2475: my $aname;
2476: my $adom;
2477:
2478: unless ($ENV{'form.uname'}) {
2479: $aname=$ENV{'user.name'};
2480: $adom=$ENV{'user.domain'};
2481: } else {
2482: $aname=$ENV{'form.uname'};
2483: $adom=$ENV{'form.udom'};
2484: }
2485:
2486: # ------------------------------------------------------------------- Open page
2487:
2488: $r->content_type('text/html');
2489: $r->header_out('Cache-control','no-cache');
2490: $r->header_out('Pragma','no-cache');
2491: $r->send_http_header;
2492:
2493: # --------------------------------------------------------------- Screen output
2494:
2495: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2496: $r->print(<<ENDSCRIPT);
2497: <script language="JavaScript">
2498:
2499: function celledit(cn,cf) {
2500: var cnf=prompt(cn,cf);
2501: if (cnf!=null) {
2502: document.sheet.unewfield.value=cn;
2503: document.sheet.unewformula.value=cnf;
2504: document.sheet.submit();
2505: }
2506: }
2507:
2508: function changesheet(cn) {
2509: document.sheet.unewfield.value=cn;
2510: document.sheet.unewformula.value='changesheet';
2511: document.sheet.submit();
2512: }
2513:
2514: function insertrow(cn) {
2515: document.sheet.unewfield.value='insertrow';
2516: document.sheet.unewformula.value=cn;
2517: document.sheet.submit();
2518: }
2519:
2520: </script>
2521: ENDSCRIPT
2522: $r->print('</head><body bgcolor="#FFFFFF">'.
2523: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2524: '<h1>LON-CAPA Spreadsheet</h1>'.
2525: '<form action="'.$r->uri.'" name=sheet method=post>'.
2526: &hiddenfield('uname',$ENV{'form.uname'}).
2527: &hiddenfield('udom',$ENV{'form.udom'}).
2528: &hiddenfield('usymb',$ENV{'form.usymb'}).
2529: &hiddenfield('unewfield','').
2530: &hiddenfield('unewformula',''));
2531:
2532: # ---------------------- Make sure that this gets out, even if user hits "stop"
2533:
2534: $r->rflush();
2535:
2536: # ---------------------------------------------------------------- Full recalc?
2537:
2538:
2539: if ($ENV{'form.forcerecalc'}) {
2540: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2541: undef %spreadsheets;
2542: undef %courserdatas;
2543: undef %userrdatas;
2544: undef %defaultsheets;
2545: undef %updatedata;
2546: }
2547:
2548: # ---------------------------------------- Read new sheet or modified worksheet
2549:
2550: $r->uri=~/\/(\w+)$/;
2551:
2552: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2553:
2554: # ------------------------ If a new formula had been entered, go from work copy
2555:
2556: if ($ENV{'form.unewfield'}) {
2557: $r->print('<h2>Modified Workcopy</h2>');
2558: $ENV{'form.unewformula'}=~s/\'/\"/g;
2559: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2560: $ENV{'form.unewformula'}.'<p>');
2561: &setfilename($asheet,$ENV{'form.ufn'});
2562: &tmpread($asheet,
2563: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2564:
2565: } elsif ($ENV{'form.saveas'}) {
2566: &setfilename($asheet,$ENV{'form.ufn'});
2567: &tmpread($asheet);
2568: } else {
2569: &readsheet($asheet,$ENV{'form.ufn'});
2570: }
2571:
2572: # -------------------------------------------------- Print out user information
2573:
2574: unless (&gettype($asheet) eq 'classcalc') {
2575: $r->print('<p><b>User:</b> '.&getuname($asheet).
2576: '<br><b>Domain:</b> '.&getudom($asheet));
2577: if (&getcsec($asheet) eq '-1') {
2578: $r->print('<h3><font color=red>'.
2579: 'Not a student in this course</font></h3>');
2580: } else {
2581: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2582: }
2583: if ($ENV{'form.usymb'}) {
2584: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2585: }
2586: }
2587:
2588: # ---------------------------------------------------------------- Course title
2589:
2590: $r->print('<h1>'.
2591: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2592: '</h1><h3>'.localtime().'</h3>');
2593:
2594: # ---------------------------------------------------- See if user can see this
2595:
2596: if ((&gettype($asheet) eq 'classcalc') ||
2597: (&getuname($asheet) ne $ENV{'user.name'}) ||
2598: (&getudom($asheet) ne $ENV{'user.domain'})) {
2599: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2600: $r->print(
2601: '<h1>Access Permission Denied</h1></form></body></html>');
2602: return OK;
2603: }
2604: }
2605:
2606: # ---------------------------------------------------------- Additional options
2607:
2608: $r->print(
2609: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2610: );
2611: if (&gettype($asheet) eq 'assesscalc') {
2612: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2613: &getuname($asheet).
2614: '&udom='.&getudom($asheet).
2615: '">Level up: Student Sheet</a></font><p>');
2616: }
2617:
2618: if ((&gettype($asheet) eq 'studentcalc') &&
2619: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2620: $r->print (
2621: '<p><font size=+2><a href="/adm/classcalc">'.
2622: 'Level up: Course Sheet</a></font><p>');
2623: }
2624:
2625:
2626: # ----------------------------------------------------------------- Save dialog
2627:
2628:
2629: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2630: my $fname=$ENV{'form.ufn'};
2631: $fname=~s/\_[^\_]+$//;
2632: if ($fname eq 'default') { $fname='course_default'; }
2633: $r->print('<input type=submit name=saveas value="Save as ...">'.
2634: '<input type=text size=20 name=newfn value="'.$fname.
2635: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2636: }
2637:
2638: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2639:
2640: # ----------------------------------------------------------------- Load dialog
2641: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2642: $r->print('<p><input type=submit name=load value="Load ...">'.
2643: '<select name="loadthissheet">'.
2644: '<option name="default">Default</option>');
2645: foreach (&othersheets($asheet,&gettype($asheet))) {
2646: $r->print('<option name="'.$_.'"');
2647: if ($ENV{'form.ufn'} eq $_) {
2648: $r->print(' selected');
2649: }
2650: $r->print('>'.$_.'</option>');
2651: }
2652: $r->print('</select><p>');
2653: if (&gettype($asheet) eq 'studentcalc') {
2654: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2655: }
2656: }
2657:
2658: # --------------------------------------------------------------- Cached sheets
2659:
2660: &expirationdates();
2661:
2662: undef %oldsheets;
2663: undef %loadedcaches;
2664:
2665: if (&gettype($asheet) eq 'classcalc') {
2666: $r->print("Loading previously calculated student sheets ...<br>\n");
2667: $r->rflush();
2668: &cachedcsheets();
2669: } elsif (&gettype($asheet) eq 'studentcalc') {
2670: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2671: $r->rflush();
2672: &cachedssheets(&getuname($asheet),&getudom($asheet),
2673: &getuhome($asheet));
2674: }
2675:
2676: # ----------------------------------------------------- Update sheet, load rows
2677:
2678: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2679: $r->rflush();
2680:
2681: &updatesheet($asheet);
2682:
2683: $r->print("Updated rows, loading row data ...<br>\n");
2684: $r->rflush();
2685:
2686: &loadrows($asheet,$r);
2687:
2688: $r->print("Loaded row data, calculating sheet ...<br>\n");
2689: $r->rflush();
2690:
2691: my $calcoutput=&calcsheet($asheet);
2692: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2693:
2694: # ---------------------------------------------------- See if something to save
2695:
2696: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2697: my $fname='';
2698: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2699: $fname=~s/\W/\_/g;
2700: if ($fname eq 'default') { $fname='course_default'; }
2701: $fname.='_'.&gettype($asheet);
2702: &setfilename($asheet,$fname);
2703: $ENV{'form.ufn'}=$fname;
2704: $r->print('<p>Saving spreadsheet: '.
2705: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2706: }
2707: }
2708:
2709: # ------------------------------------------------ Write the modified worksheet
2710:
2711: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2712:
2713: &tmpwrite($asheet);
2714:
2715: if (&gettype($asheet) eq 'studentcalc') {
2716: $r->print('<br>Show rows with empty A column: ');
2717: } else {
2718: $r->print('<br>Show empty rows: ');
2719: }
2720:
2721: $r->print(&hiddenfield('userselhidden','true').
2722: '<input type=checkbox name=showall onClick="submit()"');
2723:
2724: if ($ENV{'form.showall'}) {
2725: $r->print(' checked');
2726: } else {
2727: unless ($ENV{'form.userselhidden'}) {
2728: unless
2729: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2730: $r->print(' checked');
2731: $ENV{'form.showall'}=1;
2732: }
2733: }
2734: }
2735: $r->print('>');
2736:
2737: if (&gettype($asheet) eq 'classcalc') {
2738: $r->print(
2739: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2740: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2741: $r->print('>');
2742: }
2743:
2744: # ------------------------------------------------------------------ Insertrows
2745:
2746: $r->print(<<ENDINSERTBUTTONS);
2747: <br>
2748: <input type='button' onClick='insertrow("top");'
2749: value='Insert Row Top'>
2750: <input type='button' onClick='insertrow("bottom");'
2751: value='Insert Row Bottom'><br>
2752: ENDINSERTBUTTONS
2753:
2754: # ------------------------------------------------------------- Print out sheet
2755:
2756: &outsheet($r,$asheet);
2757: $r->print('</form></body></html>');
2758:
2759: # ------------------------------------------------------------------------ Done
2760: } else {
2761: # ----------------------------- Not in a course, or not allowed to modify parms
2762: $ENV{'user.error.msg'}=
2763: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2764: return HTTP_NOT_ACCEPTABLE;
2765: }
2766: return OK;
2767:
2768: }
2769:
2770: 1;
2771: __END__
2772:
2773:
2774:
2775:
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