1: #
2: # $Id: lonspreadsheet.pm,v 1.112 2002/09/27 20:40:19 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # POD required stuff:
30:
31: =head1 NAME
32:
33: lonspreadsheet
34:
35: =head1 SYNOPSIS
36:
37: Spreadsheet interface to internal LON-CAPA data
38:
39: =head1 DESCRIPTION
40:
41: Lonspreadsheet provides course coordinators the ability to manage their
42: students grades online. The students are able to view their own grades, but
43: not the grades of their peers. The spreadsheet is highly customizable,
44: offering the ability to use Perl code to manipulate data, as well as many
45: built-in functions.
46:
47: =head2 Functions available to user of lonspreadsheet
48:
49: =over 4
50:
51: =cut
52:
53: package Apache::lonspreadsheet;
54:
55: use strict;
56: use Safe;
57: use Safe::Hole;
58: use Opcode;
59: use Apache::lonnet;
60: use Apache::Constants qw(:common :http);
61: use GDBM_File;
62: use HTML::TokeParser;
63: use Apache::lonhtmlcommon;
64: #
65: # Caches for previously calculated spreadsheets
66: #
67:
68: my %oldsheets;
69: my %loadedcaches;
70: my %expiredates;
71:
72: #
73: # Cache for stores of an individual user
74: #
75:
76: my $cachedassess;
77: my %cachedstores;
78:
79: #
80: # These cache hashes need to be independent of user, resource and course
81: # (user and course can/should be in the keys)
82: #
83:
84: my %spreadsheets;
85: my %courserdatas;
86: my %userrdatas;
87: my %defaultsheets;
88: my %updatedata;
89:
90: #
91: # These global hashes are dependent on user, course and resource,
92: # and need to be initialized every time when a sheet is calculated
93: #
94: my %courseopt;
95: my %useropt;
96: my %parmhash;
97:
98: #
99: # Some hashes for stats on timing and performance
100: #
101:
102: my %starttimes;
103: my %usedtimes;
104: my %numbertimes;
105:
106: # Stuff that only the screen handler can know
107:
108: my $includedir;
109: my $tmpdir;
110:
111: # =============================================================================
112: # ===================================== Implements an instance of a spreadsheet
113:
114: sub initsheet {
115: my $safeeval = new Safe(shift);
116: my $safehole = new Safe::Hole;
117: $safeeval->permit("entereval");
118: $safeeval->permit(":base_math");
119: $safeeval->permit("sort");
120: $safeeval->deny(":base_io");
121: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
122: $safeeval->share('$@');
123: my $code=<<'ENDDEFS';
124: # ---------------------------------------------------- Inside of the safe space
125:
126: #
127: # f: formulas
128: # t: intermediate format (variable references expanded)
129: # v: output values
130: # c: preloaded constants (A-column)
131: # rl: row label
132: # os: other spreadsheets (for student spreadsheet only)
133:
134: undef %sheet_values;
135: undef %t;
136: undef %f;
137: undef %c;
138: undef %rowlabel;
139: undef @os;
140:
141: $maxrow = 0;
142: $sheettype = '';
143:
144: # filename/reference of the sheet
145: $filename = '';
146:
147: # user data
148: $uname = '';
149: $uhome = '';
150: $udom = '';
151:
152: # course data
153:
154: $csec = '';
155: $chome= '';
156: $cnum = '';
157: $cdom = '';
158: $cid = '';
159: $coursefilename = '';
160:
161: # symb
162:
163: $usymb = '';
164:
165: # error messages
166: $errormsg = '';
167:
168: sub mask {
169: my ($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(%sheet_values);
376: @Keys = $sheet_values{@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 /$valmask/,keys(%sheet_values);
388: @Values =$sheet_values{@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 = $sheet_values{$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(%sheet_values);
480: @Keys = $sheet_values{@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 /$valmask/,keys(%sheet_values);
493: @Values =$sheet_values{@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(%sheet_values))}}+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(%sheet_values)) {
531: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$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(%sheet_values)) {
552: $sum+=$sheet_values{$_};
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(%sheet_values)) {
570: $sum+=$sheet_values{$_};
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(%sheet_values)) {
593: $sum+=$sheet_values{$_};
594: $num++;
595: }
596: unless ($num>1) { return undef; }
597: my $mean=$sum/$num;
598: $sum=0;
599: foreach (grep /$mask/,keys(%sheet_values)) {
600: $sum+=($sheet_values{$_}-$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(%sheet_values)) {
618: $prod*=$sheet_values{$_};
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(%sheet_values)) {
636: unless ($max) { $max=$sheet_values{$_}; }
637: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
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(%sheet_values)) {
655: unless ($max) { $max=$sheet_values{$_}; }
656: if (($sheet_values{$_}<$min) || ($min eq '-')) {
657: $min=$sheet_values{$_};
658: }
659: }
660: return $min;
661: }
662:
663: #-------------------------------------------------------
664:
665: =item SUMMAX(num,lower,upper)
666:
667: compute the sum of the largest 'num' items in the range from
668: 'lower' to 'upper'
669:
670: =cut
671:
672: #-------------------------------------------------------
673: sub SUMMAX {
674: my ($num,$lower,$upper)=@_;
675: my $mask=mask($lower,$upper);
676: my @inside=();
677: foreach (grep /$mask/,keys(%sheet_values)) {
678: push (@inside,$sheet_values{$_});
679: }
680: @inside=sort(@inside);
681: my $sum=0; my $i;
682: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
683: $sum+=$inside[$i];
684: }
685: return $sum;
686: }
687:
688: #-------------------------------------------------------
689:
690: =item SUMMIN(num,lower,upper)
691:
692: compute the sum of the smallest 'num' items in the range from
693: 'lower' to 'upper'
694:
695: =cut
696:
697: #-------------------------------------------------------
698: sub SUMMIN {
699: my ($num,$lower,$upper)=@_;
700: my $mask=mask($lower,$upper);
701: my @inside=();
702: foreach (grep /$mask/,keys(%sheet_values)) {
703: $inside[$#inside+1]=$sheet_values{$_};
704: }
705: @inside=sort(@inside);
706: my $sum=0; my $i;
707: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
708: $sum+=$inside[$i];
709: }
710: return $sum;
711: }
712:
713: #-------------------------------------------------------
714:
715: =item MINPARM(parametername)
716:
717: Returns the minimum value of the parameters matching the parametername.
718: parametername should be a string such as 'duedate'.
719:
720: =cut
721:
722: #-------------------------------------------------------
723: sub MINPARM {
724: my ($expression) = @_;
725: my $min = undef;
726: study($expression);
727: foreach $parameter (keys(%c)) {
728: next if ($parameter !~ /$expression/);
729: if ((! defined($min)) || ($min > $c{$parameter})) {
730: $min = $c{$parameter}
731: }
732: }
733: return $min;
734: }
735:
736: #-------------------------------------------------------
737:
738: =item MAXPARM(parametername)
739:
740: Returns the maximum value of the parameters matching the input parameter name.
741: parametername should be a string such as 'duedate'.
742:
743: =cut
744:
745: #-------------------------------------------------------
746: sub MAXPARM {
747: my ($expression) = @_;
748: my $max = undef;
749: study($expression);
750: foreach $parameter (keys(%c)) {
751: next if ($parameter !~ /$expression/);
752: if ((! defined($min)) || ($max < $c{$parameter})) {
753: $max = $c{$parameter}
754: }
755: }
756: return $max;
757: }
758:
759: #--------------------------------------------------------
760: sub expandnamed {
761: my $expression=shift;
762: if ($expression=~/^\&/) {
763: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
764: my @vars=split(/\W+/,$formula);
765: my %values=();
766: undef %values;
767: foreach ( @vars ) {
768: my $varname=$_;
769: if ($varname=~/\D/) {
770: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
771: $varname=~s/$var/\(\\w\+\)/g;
772: foreach (keys(%c)) {
773: if ($_=~/$varname/) {
774: $values{$1}=1;
775: }
776: }
777: }
778: }
779: if ($func eq 'EXPANDSUM') {
780: my $result='';
781: foreach (keys(%values)) {
782: my $thissum=$formula;
783: $thissum=~s/$var/$_/g;
784: $result.=$thissum.'+';
785: }
786: $result=~s/\+$//;
787: return $result;
788: } else {
789: return 0;
790: }
791: } else {
792: # it is not a function, so it is a parameter name
793: # We should do the following:
794: # 1. Take the list of parameter names
795: # 2. look through the list for ones that match the parameter we want
796: # 3. If there are no collisions, return the one that matches
797: # 4. If there is a collision, return 'bad parameter name error'
798: my $returnvalue = '';
799: my @matches = ();
800: $#matches = -1;
801: study $expression;
802: foreach $parameter (keys(%c)) {
803: push @matches,$parameter if ($parameter =~ /$expression/);
804: }
805: if ($#matches == 0) {
806: $returnvalue = '$c{\''.$matches[0].'\'}';
807: } elsif ($#matches > 0) {
808: # more than one match. Look for a concise one
809: $returnvalue = "'non-unique parameter name : $expression'";
810: foreach (@matches) {
811: if (/^$expression$/) {
812: $returnvalue = '$c{\''.$_.'\'}';
813: }
814: }
815: } else {
816: $returnvalue = "'bad parameter name : $expression'";
817: }
818: return $returnvalue;
819: }
820: }
821:
822: sub sett {
823: %t=();
824: my $pattern='';
825: if ($sheettype eq 'assesscalc') {
826: $pattern='A';
827: } else {
828: $pattern='[A-Z]';
829: }
830: # Deal with the template row
831: foreach (keys(%f)) {
832: next if ($_!~/template\_(\w)/);
833: my $col=$1;
834: next if ($col=~/^$pattern/);
835: foreach (keys(%f)) {
836: next if ($_!~/A(\d+)/);
837: my $trow=$1;
838: next if (! $trow);
839: # Get the name of this cell
840: my $lb=$col.$trow;
841: # Grab the template declaration
842: $t{$lb}=$f{'template_'.$col};
843: # Replace '#' with the row number
844: $t{$lb}=~s/\#/$trow/g;
845: # Replace '....' with ','
846: $t{$lb}=~s/\.\.+/\,/g;
847: # Replace 'A0' with the value from 'A0'
848: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
849: # Replace parameters
850: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
851: }
852: }
853: # Deal with the normal cells
854: foreach (keys(%f)) {
855: if (exists($f{$_}) && ($_!~/template\_/)) {
856: my $matches=($_=~/^$pattern(\d+)/);
857: if (($matches) && ($1)) {
858: unless ($f{$_}=~/^\!/) {
859: $t{$_}=$c{$_};
860: }
861: } else {
862: $t{$_}=$f{$_};
863: $t{$_}=~s/\.\.+/\,/g;
864: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
865: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
866: }
867: }
868: }
869: # For inserted lines, [B-Z] is also valid
870: unless ($sheettype eq 'assesscalc') {
871: foreach (keys(%f)) {
872: if ($_=~/[B-Z](\d+)/) {
873: if ($f{'A'.$1}=~/^[\~\-]/) {
874: $t{$_}=$f{$_};
875: $t{$_}=~s/\.\.+/\,/g;
876: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
877: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
878: }
879: }
880: }
881: }
882: # For some reason 'A0' gets special treatment... This seems superfluous
883: # but I imagine it is here for a reason.
884: $t{'A0'}=$f{'A0'};
885: $t{'A0'}=~s/\.\.+/\,/g;
886: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
887: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
888: }
889:
890: sub calc {
891: undef %sheet_values;
892: &sett();
893: my $notfinished=1;
894: my $lastcalc='';
895: my $depth=0;
896: while ($notfinished) {
897: $notfinished=0;
898: foreach (keys(%t)) {
899: my $old=$sheet_values{$_};
900: $sheet_values{$_}=eval $t{$_};
901: if ($@) {
902: undef %sheet_values;
903: return $_.': '.$@;
904: }
905: if ($sheet_values{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
906: }
907: $depth++;
908: if ($depth>100) {
909: undef %sheet_values;
910: return $lastcalc.': Maximum calculation depth exceeded';
911: }
912: }
913: return '';
914: }
915:
916: sub templaterow {
917: my @cols=();
918: $cols[0]='<b><font size=+1>Template</font></b>';
919: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
920: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
921: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
922: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
923: my $fm=$f{'template_'.$_};
924: $fm=~s/[\'\"]/\&\#34;/g;
925: push(@cols,"'template_$_','$fm'".'___eq___'.$fm);
926: }
927: return @cols;
928: }
929:
930: #
931: # This is actually used for the student spreadsheet, not the assessment sheet
932: # Do not be fooled by the name!
933: #
934: sub outrowassess {
935: # $n is the current row number
936: my $n=shift;
937: my @cols=();
938: if ($n) {
939: my ($usy,$ufn)=split(/__&&&\__/,$f{'A'.$n});
940: if ($rowlabel{$usy}) {
941: $cols[0]=$rowlabel{$usy}.'<br>'.
942: '<select name="sel_'.$n.'" onChange="changesheet('.$n.')">'.
943: '<option name="default">Default</option>';
944: } else {
945: $cols[0]='';
946: }
947: foreach (@os) {
948: $cols[0].='<option name="'.$_.'"';
949: if ($ufn eq $_) {
950: $cols[0].=' selected';
951: }
952: $cols[0].='>'.$_.'</option>';
953: }
954: $cols[0].='</select>';
955: } else {
956: $cols[0]='<b><font size=+1>Export</font></b>';
957: }
958: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
959: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
960: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
961: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
962: my $fm=$f{$_.$n};
963: $fm=~s/[\'\"]/\&\#34;/g;
964: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
965: }
966: return @cols;
967: }
968:
969: sub outrow {
970: my $n=shift;
971: my @cols=();
972: if ($n) {
973: $cols[0]=$rowlabel{$f{'A'.$n}};
974: } else {
975: $cols[0]='<b><font size=+1>Export</font></b>';
976: }
977: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
978: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
979: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
980: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
981: my $fm=$f{$_.$n};
982: $fm=~s/[\'\"]/\&\#34;/g;
983: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
984: }
985: return @cols;
986: }
987:
988: sub exportrowa {
989: my @exportarray=();
990: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
991: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
992: push(@exportarray,$sheet_values{$_.'0'});
993: }
994: return @exportarray;
995: }
996:
997: # ------------------------------------------- End of "Inside of the safe space"
998: ENDDEFS
999: $safeeval->reval($code);
1000: return $safeeval;
1001: }
1002:
1003: # ------------------------------------------------ Add or change formula values
1004:
1005: sub setformulas {
1006: my ($safeeval,%f)=@_;
1007: %{$safeeval->varglob('f')}=%f;
1008: }
1009:
1010: # ------------------------------------------------ Add or change formula values
1011:
1012: sub setconstants {
1013: my ($safeeval,%c)=@_;
1014: %{$safeeval->varglob('c')}=%c;
1015: }
1016:
1017: # --------------------------------------------- Set names of other spreadsheets
1018:
1019: sub setothersheets {
1020: my ($safeeval,@os)=@_;
1021: @{$safeeval->varglob('os')}=@os;
1022: }
1023:
1024: # ------------------------------------------------ Add or change formula values
1025:
1026: sub setrowlabels {
1027: my ($safeeval,%rowlabel)=@_;
1028: %{$safeeval->varglob('rowlabel')}=%rowlabel;
1029: }
1030:
1031: # ------------------------------------------------------- Calculate spreadsheet
1032:
1033: sub calcsheet {
1034: my $safeeval=shift;
1035: return $safeeval->reval('&calc();');
1036: }
1037:
1038: # ------------------------------------------------------------------ Get values
1039:
1040: sub getvalues {
1041: my $safeeval=shift;
1042: return $safeeval->reval('%sheet_values');
1043: }
1044:
1045: # ---------------------------------------------------------------- Get formulas
1046:
1047: sub getformulas {
1048: my $safeeval=shift;
1049: return %{$safeeval->varglob('f')};
1050: }
1051:
1052: # ----------------------------------------------------- Get value of $f{'A'.$n}
1053:
1054: sub getfa {
1055: my ($safeeval,$n)=@_;
1056: return $safeeval->reval('$f{"A'.$n.'"}');
1057: }
1058:
1059: # -------------------------------------------------------------------- Get type
1060:
1061: sub gettype {
1062: my $safeeval=shift;
1063: return $safeeval->reval('$sheettype');
1064: }
1065:
1066: # ------------------------------------------------------------------ Set maxrow
1067:
1068: sub setmaxrow {
1069: my ($safeeval,$row)=@_;
1070: $safeeval->reval('$maxrow='.$row.';');
1071: }
1072:
1073: # ------------------------------------------------------------------ Get maxrow
1074:
1075: sub getmaxrow {
1076: my $safeeval=shift;
1077: return $safeeval->reval('$maxrow');
1078: }
1079:
1080: # ---------------------------------------------------------------- Set filename
1081:
1082: sub setfilename {
1083: my ($safeeval,$fn)=@_;
1084: $safeeval->reval('$filename="'.$fn.'";');
1085: }
1086:
1087: # ---------------------------------------------------------------- Get filename
1088:
1089: sub getfilename {
1090: my $safeeval=shift;
1091: return $safeeval->reval('$filename');
1092: }
1093:
1094: # --------------------------------------------------------------- Get course ID
1095:
1096: sub getcid {
1097: my $safeeval=shift;
1098: return $safeeval->reval('$cid');
1099: }
1100:
1101: # --------------------------------------------------------- Get course filename
1102:
1103: sub getcoursefilename {
1104: my $safeeval=shift;
1105: return $safeeval->reval('$coursefilename');
1106: }
1107:
1108: # ----------------------------------------------------------- Get course number
1109:
1110: sub getcnum {
1111: my $safeeval=shift;
1112: return $safeeval->reval('$cnum');
1113: }
1114:
1115: # ------------------------------------------------------------- Get course home
1116:
1117: sub getchome {
1118: my $safeeval=shift;
1119: return $safeeval->reval('$chome');
1120: }
1121:
1122: # ----------------------------------------------------------- Get course domain
1123:
1124: sub getcdom {
1125: my $safeeval=shift;
1126: return $safeeval->reval('$cdom');
1127: }
1128:
1129: # ---------------------------------------------------------- Get course section
1130:
1131: sub getcsec {
1132: my $safeeval=shift;
1133: return $safeeval->reval('$csec');
1134: }
1135:
1136: # --------------------------------------------------------------- Get user name
1137:
1138: sub getuname {
1139: my $safeeval=shift;
1140: return $safeeval->reval('$uname');
1141: }
1142:
1143: # ------------------------------------------------------------- Get user domain
1144:
1145: sub getudom {
1146: my $safeeval=shift;
1147: return $safeeval->reval('$udom');
1148: }
1149:
1150: # --------------------------------------------------------------- Get user home
1151:
1152: sub getuhome {
1153: my $safeeval=shift;
1154: return $safeeval->reval('$uhome');
1155: }
1156:
1157: # -------------------------------------------------------------------- Get symb
1158:
1159: sub getusymb {
1160: my $safeeval=shift;
1161: return $safeeval->reval('$usymb');
1162: }
1163:
1164: # ------------------------------------------------------------- Export of A-row
1165:
1166: sub exportdata {
1167: my $safeeval=shift;
1168: return $safeeval->reval('&exportrowa()');
1169: }
1170:
1171:
1172: # ========================================================== End of Spreadsheet
1173: # =============================================================================
1174:
1175: #
1176: # Procedures for screen output
1177: #
1178: # --------------------------------------------- Produce output row n from sheet
1179:
1180: sub rown {
1181: my ($safeeval,$n)=@_;
1182: my $defaultbg;
1183: my $rowdata='';
1184: my $dataflag=0;
1185: unless ($n eq '-') {
1186: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1187: } else {
1188: $defaultbg='#E0FF';
1189: }
1190: unless ($ENV{'form.showcsv'}) {
1191: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1192: } else {
1193: $rowdata.="\n".'"'.$n.'"';
1194: }
1195: my $showf=0;
1196: my $proc;
1197: my $maxred=1;
1198: my $sheettype=&gettype($safeeval);
1199: if ($sheettype eq 'studentcalc') {
1200: $proc='&outrowassess';
1201: $maxred=26;
1202: } else {
1203: $proc='&outrow';
1204: }
1205: if ($sheettype eq 'assesscalc') {
1206: $maxred=1;
1207: } else {
1208: $maxred=26;
1209: }
1210: if (&getfa($safeeval,$n)=~/^[\~\-]/) { $maxred=1; }
1211: if ($n eq '-') {
1212: $proc='&templaterow';
1213: $n=-1;
1214: $dataflag=1;
1215: }
1216: foreach ($safeeval->reval($proc.'('.$n.')')) {
1217: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1218: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1219: if ((($vl ne '') || ($vl eq '0')) &&
1220: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1221: if ($showf==0) { $vl=$_; }
1222: unless ($ENV{'form.showcsv'}) {
1223: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1224: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1225: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1226: if ($vl eq '') {
1227: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1228: }
1229: $rowdata.='<td bgcolor='.$bgcolor.'>';
1230: if ($ENV{'request.role'} =~ /^st\./) {
1231: $rowdata.=$vl;
1232: } else {
1233: $rowdata.='<a href="javascript:celledit('.$fm.');">'.
1234: $vl.'</a>';
1235: }
1236: $rowdata.='</td>';
1237: } else {
1238: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1239: }
1240: } else {
1241: $rowdata.=',"'.$vl.'"';
1242: }
1243: $showf++;
1244: } # End of foreach($safeval...)
1245: if ($ENV{'form.showall'} || ($dataflag)) {
1246: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1247: } else {
1248: return '';
1249: }
1250: }
1251:
1252: # ------------------------------------------------------------- Print out sheet
1253:
1254: sub outsheet {
1255: my ($r,$safeeval,$sheetdata)=@_;
1256: my $maxred = 26; # The maximum number of cells to show as
1257: # red (uneditable)
1258: # To make student sheets uneditable could we
1259: # set $maxred = 52?
1260: #
1261: my $realm='Course'; # 'assessment', 'user', or 'course' sheet
1262: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1263: $maxred=1;
1264: $realm='Assessment';
1265: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1266: $maxred=26;
1267: $realm='User';
1268: }
1269: #
1270: # Column label
1271: my $tabledata;
1272: if ($ENV{'form.showcsv'}) {
1273: $tabledata='<pre>';
1274: } else {
1275: $tabledata='<table border=2><tr><th colspan=2 rowspan=2>'.
1276: '<font size=+2>'.$realm.'</font></th>'.
1277: '<td bgcolor=#FFDDDD colspan='.$maxred.
1278: '><b><font size=+1>Import</font></b></td>'.
1279: '<td colspan='.(52-$maxred).
1280: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1281: my $showf=0;
1282: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1283: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1284: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1285: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1286: $showf++;
1287: if ($showf<=$maxred) {
1288: $tabledata.='<td bgcolor="#FFDDDD">';
1289: } else {
1290: $tabledata.='<td>';
1291: }
1292: $tabledata.="<b><font size=+1>$_</font></b></td>";
1293: }
1294: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1295: }
1296: $r->print($tabledata);
1297: #
1298: # Prepare to output rows
1299: my $row;
1300: my $maxrow=&getmaxrow($safeeval);
1301: #
1302: my @sortby=();
1303: my @sortidx=();
1304: for ($row=1;$row<=$maxrow;$row++) {
1305: push (@sortby, $safeeval->reval('$f{"A'.$row.'"}'));
1306: push (@sortidx, $row-1);
1307: }
1308: @sortidx=sort { lc($sortby[$a]) cmp lc($sortby[$b]); } @sortidx;
1309: #
1310: # Determine the type of child spreadsheets
1311: my $what='Student';
1312: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1313: $what='Item';
1314: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1315: $what='Assessment';
1316: }
1317: #
1318: # Loop through the rows and output them one at a time
1319: my $n=0;
1320: for ($row=0;$row<$maxrow;$row++) {
1321: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1322: if ($thisrow) {
1323: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1324: $r->print("</table>\n<br>\n");
1325: $r->rflush();
1326: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1327: $r->print('<td>'.
1328: join('</td><td>',
1329: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1330: 'abcdefghijklmnopqrstuvwxyz'))).
1331: "</td></tr>\n");
1332: }
1333: $n++;
1334: $r->print($thisrow);
1335: }
1336: }
1337: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1338: }
1339:
1340: #
1341: # ----------------------------------------------- Read list of available sheets
1342: #
1343: sub othersheets {
1344: my ($safeeval,$stype)=@_;
1345: #
1346: my $cnum = &getcnum($safeeval);
1347: my $cdom = &getcdom($safeeval);
1348: my $chome = &getchome($safeeval);
1349: #
1350: my @alternatives=();
1351: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1352: my ($tmp) = keys(%results);
1353: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1354: @alternatives = sort (keys(%results));
1355: }
1356: return @alternatives;
1357: }
1358:
1359:
1360: #
1361: # -------------------------------------- Parse a spreadsheet
1362: #
1363: sub parse_sheet {
1364: # $sheetxml is a scalar reference or a scalar
1365: my ($sheetxml) = @_;
1366: if (! ref($sheetxml)) {
1367: my $tmp = $sheetxml;
1368: $sheetxml = \$tmp;
1369: }
1370: my %f;
1371: my $parser=HTML::TokeParser->new($sheetxml);
1372: my $token;
1373: while ($token=$parser->get_token) {
1374: if ($token->[0] eq 'S') {
1375: if ($token->[1] eq 'field') {
1376: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1377: $parser->get_text('/field');
1378: }
1379: if ($token->[1] eq 'template') {
1380: $f{'template_'.$token->[2]->{'col'}}=
1381: $parser->get_text('/template');
1382: }
1383: }
1384: }
1385: return \%f;
1386: }
1387:
1388: #
1389: # -------------------------------------- Read spreadsheet formulas for a course
1390: #
1391: sub readsheet {
1392: my ($safeeval,$sheetdata,$fn)=@_;
1393: #
1394: my $stype = $sheetdata->{'sheettype'};
1395: my $cnum = $sheetdata->{'cnum'};
1396: my $cdom = $sheetdata->{'cdom'};
1397: my $chome = $sheetdata->{'chome'};
1398: #
1399: if (! defined($fn)) {
1400: # There is no filename. Look for defaults in course and global, cache
1401: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1402: my %tmphash = &Apache::lonnet::get('environment',
1403: ['spreadsheet_default_'.$stype],
1404: $cdom,$cnum);
1405: my ($tmp) = keys(%tmphash);
1406: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1407: $fn = 'default_'.$stype;
1408: } else {
1409: $fn = $tmphash{'spreadsheet_default_'.$stype};
1410: }
1411: unless (($fn) && ($fn!~/^error\:/)) {
1412: $fn='default_'.$stype;
1413: }
1414: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1415: }
1416: }
1417: # $fn now has a value
1418: &setfilename($safeeval,$fn);
1419: # see if sheet is cached
1420: my $fstring='';
1421: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1422: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1423: } else {
1424: # Not cached, need to read
1425: my %f=();
1426: if ($fn=~/^default\_/) {
1427: my $sheetxml='';
1428: my $fh;
1429: my $dfn=$fn;
1430: $dfn=~s/\_/\./g;
1431: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1432: $sheetxml=join('',<$fh>);
1433: } else {
1434: $sheetxml='<field row="0" col="A">"Error"</field>';
1435: }
1436: %f=%{&parse_sheet(\$sheetxml)};
1437: } elsif($fn=~/\/*\.spreadsheet$/) {
1438: my $sheetxml=&Apache::lonnet::getfile
1439: (&Apache::lonnet::filelocation('',$fn));
1440: if ($sheetxml == -1) {
1441: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1442: .$fn.'"</field>';
1443: }
1444: %f=%{&parse_sheet(\$sheetxml)};
1445: } else {
1446: my $sheet='';
1447: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1448: my ($tmp) = keys(%tmphash);
1449: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1450: foreach (keys(%tmphash)) {
1451: $f{$_}=$tmphash{$_};
1452: }
1453: }
1454: }
1455: # Cache and set
1456: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1457: &setformulas($safeeval,%f);
1458: }
1459: }
1460:
1461: # -------------------------------------------------------- Make new spreadsheet
1462: sub makenewsheet {
1463: my ($uname,$udom,$stype,$usymb)=@_;
1464: my %sheetdata=();
1465: $sheetdata{'uname'} = $uname;
1466: $sheetdata{'udom'} = $udom;
1467: $sheetdata{'sheettype'} = $stype;
1468: $sheetdata{'usymb'} = $usymb;
1469: $sheetdata{'cid'} = $ENV{'request.course.id'};
1470: $sheetdata{'csec'} = &Apache::lonnet::usection
1471: ($udom,$uname,$ENV{'request.course.id'});
1472: $sheetdata{'coursefilename'} = $ENV{'request.course.fn'};
1473: $sheetdata{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1474: $sheetdata{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1475: $sheetdata{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1476: $sheetdata{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1477:
1478: my $safeeval=initsheet($stype);
1479: my $initstring = '';
1480: foreach (keys(%sheetdata)) {
1481: $initstring.= qq{\$$_="$sheetdata{$_}";};
1482: }
1483: $safeeval->reval($initstring);
1484: return $safeeval,\%sheetdata;
1485: }
1486:
1487: # ------------------------------------------------------------ Save spreadsheet
1488: sub writesheet {
1489: my ($safeeval,$makedef)=@_;
1490: my $cid=&getcid($safeeval);
1491: if (&Apache::lonnet::allowed('opa',$cid)) {
1492: my %f=&getformulas($safeeval);
1493: my $stype=&gettype($safeeval);
1494: my $cnum=&getcnum($safeeval);
1495: my $cdom=&getcdom($safeeval);
1496: my $chome=&getchome($safeeval);
1497: my $fn=&getfilename($safeeval);
1498: # Cache new sheet
1499: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1500: # Write sheet
1501: my $sheetdata='';
1502: foreach (keys(%f)) {
1503: unless ($f{$_} eq 'import') {
1504: $sheetdata.=&Apache::lonnet::escape($_).'='.
1505: &Apache::lonnet::escape($f{$_}).'&';
1506: }
1507: }
1508: $sheetdata=~s/\&$//;
1509: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1510: $sheetdata,$chome);
1511: if ($reply eq 'ok') {
1512: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1513: $stype.'_spreadsheets:'.
1514: &Apache::lonnet::escape($fn).
1515: '='.$ENV{'user.name'}.'@'.
1516: $ENV{'user.domain'},
1517: $chome);
1518: if ($reply eq 'ok') {
1519: if ($makedef) {
1520: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1521: ':environment:'.
1522: 'spreadsheet_default_'.
1523: $stype.'='.
1524: &Apache::lonnet::escape($fn),
1525: $chome);
1526: }
1527: return $reply;
1528: }
1529: return $reply;
1530: }
1531: return $reply;
1532: }
1533: return 'unauthorized';
1534: }
1535:
1536: # ----------------------------------------------- Make a temp copy of the sheet
1537: # "Modified workcopy" - interactive only
1538: #
1539: sub tmpwrite {
1540: my $safeeval=shift;
1541: my $fn=$ENV{'user.name'}.'_'.
1542: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1543: &getfilename($safeeval);
1544: $fn=~s/\W/\_/g;
1545: $fn=$tmpdir.$fn.'.tmp';
1546: my $fh;
1547: if ($fh=Apache::File->new('>'.$fn)) {
1548: print $fh join("\n",&getformulas($safeeval));
1549: }
1550: }
1551:
1552: # ---------------------------------------------------------- Read the temp copy
1553: sub tmpread {
1554: my ($safeeval,$nfield,$nform)=@_;
1555: my $fn=$ENV{'user.name'}.'_'.
1556: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1557: &getfilename($safeeval);
1558: $fn=~s/\W/\_/g;
1559: $fn=$tmpdir.$fn.'.tmp';
1560: my $fh;
1561: my %fo=();
1562: my $countrows=0;
1563: if ($fh=Apache::File->new($fn)) {
1564: my $name;
1565: while ($name=<$fh>) {
1566: chomp($name);
1567: my $value=<$fh>;
1568: chomp($value);
1569: $fo{$name}=$value;
1570: if ($name=~/^A(\d+)$/) {
1571: if ($1>$countrows) {
1572: $countrows=$1;
1573: }
1574: }
1575: }
1576: }
1577: if ($nform eq 'changesheet') {
1578: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1579: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1580: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1581: }
1582: } elsif ($nfield eq 'insertrow') {
1583: $countrows++;
1584: my $newrow=substr('000000'.$countrows,-7);
1585: if ($nform eq 'top') {
1586: $fo{'A'.$countrows}='--- '.$newrow;
1587: } else {
1588: $fo{'A'.$countrows}='~~~ '.$newrow;
1589: }
1590: } else {
1591: if ($nfield) { $fo{$nfield}=$nform; }
1592: }
1593: &setformulas($safeeval,%fo);
1594: }
1595:
1596: ##################################################
1597: ##################################################
1598:
1599: =pod
1600:
1601: =item &parmval()
1602:
1603: Determine the value of a parameter.
1604:
1605: Inputs: $what, the parameter needed, $safeeval, the safe space
1606:
1607: Returns: The value of a parameter, or '' if none.
1608:
1609: This function cascades through the possible levels searching for a value for
1610: a parameter. The levels are checked in the following order:
1611: user, course (at section level and course level), map, and lonnet::metadata.
1612: This function uses %parmhash, which must be tied prior to calling it.
1613: This function also requires %courseopt and %useropt to be initialized for
1614: this user and course.
1615:
1616: =cut
1617:
1618: ##################################################
1619: ##################################################
1620: sub parmval {
1621: my ($what,$safeeval,$sheetdata)=@_;
1622: my $symb = $sheetdata->{'usymb'};
1623: unless ($symb) { return ''; }
1624: #
1625: my $cid = $sheetdata->{'cid'};
1626: my $csec = $sheetdata->{'csec'};
1627: my $uname = $sheetdata->{'uname'};
1628: my $udom = $sheetdata->{'udom'};
1629: my $result='';
1630: #
1631: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1632: # Cascading lookup scheme
1633: my $rwhat=$what;
1634: $what =~ s/^parameter\_//;
1635: $what =~ s/\_([^\_]+)$/\.$1/;
1636: #
1637: my $symbparm = $symb.'.'.$what;
1638: my $mapparm = $mapname.'___(all).'.$what;
1639: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
1640: #
1641: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
1642: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
1643: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
1644: #
1645: my $courselevel = $usercourseprefix.'.'.$what;
1646: my $courselevelr = $usercourseprefix.'.'.$symbparm;
1647: my $courselevelm = $usercourseprefix.'.'.$mapparm;
1648: # fourth, check user
1649: if ($uname) {
1650: return $useropt{$courselevelr} if ($useropt{$courselevelr});
1651: return $useropt{$courselevelm} if ($useropt{$courselevelm});
1652: return $useropt{$courselevel} if ($useropt{$courselevel});
1653: }
1654: # third, check course
1655: if ($csec) {
1656: return $courseopt{$seclevelr} if ($courseopt{$seclevelr});
1657: return $courseopt{$seclevelm} if ($courseopt{$seclevelm});
1658: return $courseopt{$seclevel} if ($courseopt{$seclevel});
1659: }
1660: #
1661: return $courseopt{$courselevelr} if ($courseopt{$courselevelr});
1662: return $courseopt{$courselevelm} if ($courseopt{$courselevelm});
1663: return $courseopt{$courselevel} if ($courseopt{$courselevel});
1664: # second, check map parms
1665: my $thisparm = $parmhash{$symbparm};
1666: return $thisparm if ($thisparm);
1667: # first, check default
1668: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1669: }
1670:
1671: # ---------------------------------------------- Update rows for course listing
1672: sub updateclasssheet {
1673: my ($safeeval,$sheetdata) = @_;
1674: my $cnum =$sheetdata->{'cnum'};
1675: my $cdom =$sheetdata->{'cdom'};
1676: my $cid =$sheetdata->{'cid'};
1677: my $chome =$sheetdata->{'chome'};
1678: #
1679: # Read class list and row labels
1680: my %classlist;
1681: my @tmp = &Apache::lonnet::dump('classlist',$cdom,$cnum);
1682: if ($tmp[0] !~ /^error/) {
1683: %classlist = @tmp;
1684: } else {
1685: return 'Could not access course data';
1686: }
1687: undef @tmp;
1688: #
1689: my %currentlist=();
1690: my $now=time;
1691: foreach my $student (keys(%classlist)) {
1692: my ($end,$start)=split(/\:/,$classlist{$student});
1693: my $active=1;
1694: $active = 0 if (($end) && ($now>$end));
1695: $active = 1 if ($ENV{'form.Status'} eq 'Any');
1696: $active = !$active if ($ENV{'form.Status'} eq 'Expired');
1697: if ($active) {
1698: my $rowlabel='';
1699: my ($studentName,$studentDomain)=split(/\:/,$student);
1700: my $studentSection=&Apache::lonnet::usection($studentDomain,
1701: $studentName,$cid);
1702: # if ($studentSection==-1) {
1703: # unless ($ENV{'form.showcsv'}) {
1704: # $rowlabel='<font color=red>Data not available: '.
1705: # $studentName.'</font>';
1706: # } else {
1707: # $rowlabel='ERROR","'.$studentName.
1708: # '","Data not available","","","';
1709: # }
1710: # } else {
1711: my %reply=&Apache::lonnet::idrget($studentDomain,$studentName);
1712: my %studentInformation=&Apache::lonnet::get
1713: ('environment',
1714: ['lastname','generation','firstname','middlename','id'],
1715: $studentDomain,$studentName);
1716: if (! $ENV{'form.showcsv'}) {
1717: $rowlabel='<a href="/adm/studentcalc?uname='.$studentName.
1718: '&udom='.$studentDomain.'">'.
1719: $studentSection.' ';
1720: foreach ('id','firstname','middlename',
1721: 'lastname','generation'){
1722: $rowlabel.=$studentInformation{$_}." ";
1723: }
1724: $rowlabel.='</a>';
1725: } else {
1726: $rowlabel= '"'.join('","',
1727: ($studentSection,
1728: $studentInformation{'id'},
1729: $studentInformation{'firstname'},
1730: $studentInformation{'middlename'},
1731: $studentInformation{'lastname'},
1732: $studentInformation{'generation'})
1733: ).'"';
1734: }
1735: # }
1736: $currentlist{$student}=$rowlabel;
1737: } # end of if ($active)
1738: } # end of foreach my $student (keys(%classlist))
1739: #
1740: # Find discrepancies between the course row table and this
1741: #
1742: my %f=&getformulas($safeeval);
1743: my $changed=0;
1744: #
1745: my $maxrow=0;
1746: my %existing=();
1747: #
1748: # Now obsolete rows
1749: foreach (keys(%f)) {
1750: if ($_=~/^A(\d+)/) {
1751: $maxrow=($1>$maxrow)?$1:$maxrow;
1752: $existing{$f{$_}}=1;
1753: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1754: ($f{$_}=~/^(\~\~\~|\-\-\-)/)) {
1755: $f{$_}='!!! Obsolete';
1756: $changed=1;
1757: }
1758: }
1759: }
1760: #
1761: # New and unknown keys
1762: foreach (sort keys(%currentlist)) {
1763: unless ($existing{$_}) {
1764: $changed=1;
1765: $maxrow++;
1766: $f{'A'.$maxrow}=$_;
1767: }
1768: }
1769: if ($changed) { &setformulas($safeeval,%f); }
1770: #
1771: &setmaxrow($safeeval,$maxrow);
1772: &setrowlabels($safeeval,%currentlist);
1773: }
1774:
1775: # ----------------------------------- Update rows for student and assess sheets
1776: sub updatestudentassesssheet {
1777: my ($safeeval,$sheetdata) = @_;
1778: my %bighash;
1779: my $stype=$sheetdata->{'sheettype'};
1780: my $uname=$sheetdata->{'uname'};
1781: my $udom =$sheetdata->{'udom'};
1782: my %current=();
1783: if ($updatedata
1784: {$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}) {
1785: %current=split(/\_\_\_\;\_\_\_/,
1786: $updatedata{$ENV{'request.course.fn'}.
1787: '_'.$stype.'_'.$uname.'_'.$udom});
1788: } else {
1789: # Tie hash
1790: tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1791: &GDBM_READER(),0640);
1792: if (! tied(%bighash)) {
1793: return 'Could not access course data';
1794: }
1795: # Get all assessments
1796: my %allkeys=('timestamp' =>
1797: 'Timestamp of Last Transaction<br>timestamp',
1798: 'subnumber' =>
1799: 'Number of Submissions<br>subnumber',
1800: 'tutornumber' =>
1801: 'Number of Tutor Responses<br>tutornumber',
1802: 'totalpoints' =>
1803: 'Total Points Granted<br>totalpoints');
1804: my $adduserstr='';
1805: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})){
1806: $adduserstr='&uname='.$uname.'&udom='.$udom;
1807: }
1808: my %allassess =
1809: ('_feedback' =>'<a href="/adm/assesscalc?usymb=_feedback'.
1810: $adduserstr.'">Feedback</a>',
1811: '_evaluation' =>'<a href="/adm/assesscalc?usymb=_evaluation'.
1812: $adduserstr.'">Evaluation</a>',
1813: '_tutoring' =>'<a href="/adm/assesscalc?usymb=_tutoring'.
1814: $adduserstr.'">Tutoring</a>',
1815: '_discussion' =>'<a href="/adm/assesscalc?usymb=_discussion'.
1816: $adduserstr.'">Discussion</a>'
1817: );
1818: while (($_,undef) = each(%bighash)) {
1819: next if ($_!~/^src\_(\d+)\.(\d+)$/);
1820: my $mapid=$1;
1821: my $resid=$2;
1822: my $id=$mapid.'.'.$resid;
1823: my $srcf=$bighash{$_};
1824: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1825: my $symb=
1826: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1827: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
1828: $allassess{$symb}=
1829: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1830: $bighash{'title_'.$id}.'</a>';
1831: next if ($stype ne 'assesscalc');
1832: foreach my $key (split(/\,/,
1833: &Apache::lonnet::metadata($srcf,'keys')
1834: )) {
1835: next if ($key !~ /^(stores|parameter)_/);
1836: my $display=
1837: &Apache::lonnet::metadata($srcf,$key.'.display');
1838: unless ($display) {
1839: $display.=
1840: &Apache::lonnet::metadata($srcf,$key.'.name');
1841: }
1842: $display.='<br>'.$key;
1843: $allkeys{$key}=$display;
1844: } # end of foreach
1845: }
1846: } # end of foreach (keys(%bighash))
1847: untie(%bighash);
1848: #
1849: # %allkeys has a list of storage and parameter displays by unikey
1850: # %allassess has a list of all resource displays by symb
1851: #
1852: if ($stype eq 'assesscalc') {
1853: %current=%allkeys;
1854: } elsif ($stype eq 'studentcalc') {
1855: %current=%allassess;
1856: }
1857: $updatedata{$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}=
1858: join('___;___',%current);
1859: # Get current from cache
1860: }
1861: # Find discrepancies between the course row table and this
1862: #
1863: my %f=&getformulas($safeeval);
1864: my $changed=0;
1865:
1866: my $maxrow=0;
1867: my %existing=();
1868: # Now obsolete rows
1869: foreach (keys(%f)) {
1870: next if ($_!~/^A(\d+)/);
1871: $maxrow=($1>$maxrow)?$1:$maxrow;
1872: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1873: $existing{$usy}=1;
1874: unless ((defined($current{$usy})) || (!$1) ||
1875: ($f{$_}=~/^(\~\~\~|\-\-\-)/)){
1876: $f{$_}='!!! Obsolete';
1877: $changed=1;
1878: } elsif ($ufn) {
1879: $current{$usy}
1880: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1881: }
1882: }
1883: # New and unknown keys
1884: foreach (keys(%current)) {
1885: unless ($existing{$_}) {
1886: $changed=1;
1887: $maxrow++;
1888: $f{'A'.$maxrow}=$_;
1889: }
1890: }
1891: if ($changed) { &setformulas($safeeval,%f); }
1892: &setmaxrow($safeeval,$maxrow);
1893: &setrowlabels($safeeval,%current);
1894: #
1895: undef %current;
1896: undef %existing;
1897: }
1898:
1899: # ------------------------------------------------ Load data for one assessment
1900:
1901: sub loadstudent {
1902: my ($safeeval,$sheetdata)=@_;
1903: my %c=();
1904: my %f=&getformulas($safeeval);
1905: $cachedassess=$sheetdata->{'uname'}.':'.$sheetdata->{'udom'};
1906: # Get ALL the student preformance data
1907: my @tmp = &Apache::lonnet::dump($sheetdata->{'cid'},
1908: $sheetdata->{'udom'},
1909: $sheetdata->{'uname'},
1910: undef);
1911: if ($tmp[0] !~ /^error:/) {
1912: %cachedstores = @tmp;
1913: }
1914: undef @tmp;
1915: #
1916: my @assessdata=();
1917: foreach (keys(%f)) {
1918: next if ($_!~/^A(\d+)/);
1919: my $row=$1;
1920: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1921: my ($usy,$ufn)=split(/__&&&\__/,$f{$_});
1922: @assessdata=&exportsheet($sheetdata->{'uname'},
1923: $sheetdata->{'udom'},
1924: 'assesscalc',$usy,$ufn);
1925: my $index=0;
1926: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1927: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1928: if ($assessdata[$index]) {
1929: my $col=$_;
1930: if ($assessdata[$index]=~/\D/) {
1931: $c{$col.$row}="'".$assessdata[$index]."'";
1932: } else {
1933: $c{$col.$row}=$assessdata[$index];
1934: }
1935: unless ($col eq 'A') {
1936: $f{$col.$row}='import';
1937: }
1938: }
1939: $index++;
1940: }
1941: }
1942: $cachedassess='';
1943: undef %cachedstores;
1944: &setformulas($safeeval,%f);
1945: &setconstants($safeeval,%c);
1946: }
1947:
1948: # --------------------------------------------------- Load data for one student
1949: #
1950: sub loadcourse {
1951: my ($safeeval,$sheetdata,$r)=@_;
1952: my %c=();
1953: my %f=&getformulas($safeeval);
1954: my $total=0;
1955: foreach (keys(%f)) {
1956: if ($_=~/^A(\d+)/) {
1957: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1958: }
1959: }
1960: my $now=0;
1961: my $since=time;
1962: $r->print(<<ENDPOP);
1963: <script>
1964: popwin=open('','popwin','width=400,height=100');
1965: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1966: '<h3>Spreadsheet Calculation Progress</h3>'+
1967: '<form name=popremain>'+
1968: '<input type=text size=35 name=remaining value=Starting></form>'+
1969: '</body></html>');
1970: popwin.document.close();
1971: </script>
1972: ENDPOP
1973: $r->rflush();
1974: foreach (keys(%f)) {
1975: next if ($_!~/^A(\d+)/);
1976: my $row=$1;
1977: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1978: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1979: 'studentcalc');
1980: undef %userrdatas;
1981: $now++;
1982: $r->print('<script>popwin.document.popremain.remaining.value="'.
1983: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1984: ' secs remaining";</script>');
1985: $r->rflush();
1986: #
1987: my $index=0;
1988: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1989: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1990: if ($studentdata[$index]) {
1991: my $col=$_;
1992: if ($studentdata[$index]=~/\D/) {
1993: $c{$col.$row}="'".$studentdata[$index]."'";
1994: } else {
1995: $c{$col.$row}=$studentdata[$index];
1996: }
1997: unless ($col eq 'A') {
1998: $f{$col.$row}='import';
1999: }
2000: $index++;
2001: }
2002: }
2003: }
2004: &setformulas($safeeval,%f);
2005: &setconstants($safeeval,%c);
2006: $r->print('<script>popwin.close()</script>');
2007: $r->rflush();
2008: }
2009:
2010: # ------------------------------------------------ Load data for one assessment
2011: #
2012: sub loadassessment {
2013: my ($safeeval,$sheetdata)=@_;
2014:
2015: my $uhome = $sheetdata->{'uhome'};
2016: my $uname = $sheetdata->{'uname'};
2017: my $udom = $sheetdata->{'udom'};
2018: my $symb = $sheetdata->{'usymb'};
2019: my $cid = $sheetdata->{'cid'};
2020: my $cnum = $sheetdata->{'cnum'};
2021: my $cdom = $sheetdata->{'cdom'};
2022: my $chome = $sheetdata->{'chome'};
2023:
2024: my $namespace;
2025: unless ($namespace=$cid) { return ''; }
2026: # Get stored values
2027: my %returnhash=();
2028: if ($cachedassess eq $uname.':'.$udom) {
2029: #
2030: # get data out of the dumped stores
2031: #
2032: my $version=$cachedstores{'version:'.$symb};
2033: my $scope;
2034: for ($scope=1;$scope<=$version;$scope++) {
2035: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2036: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2037: }
2038: }
2039: } else {
2040: #
2041: # restore individual
2042: #
2043: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
2044: for (my $version=1;$version<=$returnhash{'version'};$version++) {
2045: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2046: $returnhash{$_}=$returnhash{$version.':'.$_};
2047: }
2048: }
2049: }
2050: #
2051: # returnhash now has all stores for this resource
2052: # convert all "_" to "." to be able to use libraries, multiparts, etc
2053: #
2054: # This is dumb. It is also necessary :(
2055: my @oldkeys=keys %returnhash;
2056: #
2057: foreach (@oldkeys) {
2058: my $name=$_;
2059: my $value=$returnhash{$_};
2060: delete $returnhash{$_};
2061: $name=~s/\_/\./g;
2062: $returnhash{$name}=$value;
2063: }
2064: # initialize coursedata and userdata for this user
2065: undef %courseopt;
2066: undef %useropt;
2067:
2068: my $userprefix=$uname.'_'.$udom.'_';
2069:
2070: unless ($uhome eq 'no_host') {
2071: # Get coursedata
2072: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
2073: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2074: ':resourcedata',$chome);
2075: if ($reply!~/^error\:/) {
2076: $courserdatas{$cid}=$reply;
2077: $courserdatas{$cid.'.last_cache'}=time;
2078: }
2079: }
2080: foreach (split(/\&/,$courserdatas{$cid})) {
2081: my ($name,$value)=split(/\=/,$_);
2082: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2083: &Apache::lonnet::unescape($value);
2084: }
2085: # Get userdata (if present)
2086: unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2087: my $reply=
2088: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2089: if ($reply!~/^error\:/) {
2090: $userrdatas{$uname.'___'.$udom}=$reply;
2091: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2092: }
2093: }
2094: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2095: my ($name,$value)=split(/\=/,$_);
2096: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2097: &Apache::lonnet::unescape($value);
2098: }
2099: }
2100: # now courseopt, useropt initialized for this user and course
2101: # (used by parmval)
2102: #
2103: # Load keys for this assessment only
2104: #
2105: my %thisassess=();
2106: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2107: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2108: $thisassess{$_}=1;
2109: }
2110: #
2111: # Load parameters
2112: #
2113: my %c=();
2114: if (tie(%parmhash,'GDBM_File',
2115: &getcoursefilename($safeeval).'_parms.db',&GDBM_READER(),0640)) {
2116: my %f=&getformulas($safeeval);
2117: foreach (keys(%f)) {
2118: next if ($_!~/^A/);
2119: next if ($f{$_}=~/^[\!\~\-]/);
2120: if ($f{$_}=~/^parameter/) {
2121: if ($thisassess{$f{$_}}) {
2122: my $val=&parmval($f{$_},$safeeval,$sheetdata);
2123: $c{$_}=$val;
2124: $c{$f{$_}}=$val;
2125: }
2126: } else {
2127: my $key=$f{$_};
2128: my $ckey=$key;
2129: $key=~s/^stores\_/resource\./;
2130: $key=~s/\_/\./g;
2131: $c{$_}=$returnhash{$key};
2132: $c{$ckey}=$returnhash{$key};
2133: }
2134: }
2135: untie(%parmhash);
2136: }
2137: &setconstants($safeeval,%c);
2138: }
2139:
2140: # --------------------------------------------------------- Various form fields
2141:
2142: sub textfield {
2143: my ($title,$name,$value)=@_;
2144: return "\n<p><b>$title:</b><br>".
2145: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2146: }
2147:
2148: sub hiddenfield {
2149: my ($name,$value)=@_;
2150: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2151: }
2152:
2153: sub selectbox {
2154: my ($title,$name,$value,%options)=@_;
2155: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2156: foreach (sort keys(%options)) {
2157: $selout.='<option value="'.$_.'"';
2158: if ($_ eq $value) { $selout.=' selected'; }
2159: $selout.='>'.$options{$_}.'</option>';
2160: }
2161: return $selout.'</select>';
2162: }
2163:
2164: # =============================================== Update information in a sheet
2165: #
2166: # Add new users or assessments, etc.
2167: #
2168:
2169: sub updatesheet {
2170: my ($safeeval,$sheetdata)=@_;
2171: my $stype=$sheetdata->{'sheettype'};
2172: if ($stype eq 'classcalc') {
2173: return &updateclasssheet($safeeval,$sheetdata);
2174: } else {
2175: return &updatestudentassesssheet($safeeval,$sheetdata);
2176: }
2177: }
2178:
2179: # =================================================== Load the rows for a sheet
2180: #
2181: # Import the data for rows
2182: #
2183:
2184: sub loadrows {
2185: my ($safeeval,$sheetdata,$r)=@_;
2186: my $stype=$sheetdata->{'sheettype'};
2187: if ($stype eq 'classcalc') {
2188: &loadcourse($safeeval,$sheetdata,$r);
2189: } elsif ($stype eq 'studentcalc') {
2190: &loadstudent($safeeval,$sheetdata);
2191: } else {
2192: &loadassessment($safeeval,$sheetdata);
2193: }
2194: }
2195:
2196: # ======================================================= Forced recalculation?
2197:
2198: sub checkthis {
2199: my ($keyname,$time)=@_;
2200: return ($time<$expiredates{$keyname});
2201: }
2202:
2203: sub forcedrecalc {
2204: my ($uname,$udom,$stype,$usymb)=@_;
2205: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2206: my $time=$oldsheets{$key.'.time'};
2207: if ($ENV{'form.forcerecalc'}) { return 1; }
2208: unless ($time) { return 1; }
2209: if ($stype eq 'assesscalc') {
2210: my $map=(split(/\_\_\_/,$usymb))[0];
2211: if (&checkthis('::assesscalc:',$time) ||
2212: &checkthis('::assesscalc:'.$map,$time) ||
2213: &checkthis('::assesscalc:'.$usymb,$time) ||
2214: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2215: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2216: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2217: return 1;
2218: }
2219: } else {
2220: if (&checkthis('::studentcalc:',$time) ||
2221: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2222: return 1;
2223: }
2224: }
2225: return 0;
2226: }
2227:
2228: # ============================================================== Export handler
2229: #
2230: # Non-interactive call from with program
2231: #
2232:
2233: sub exportsheet {
2234: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2235: my @exportarr=();
2236: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2237: $fn='default_'.$1;
2238: }
2239: #
2240: # Check if cached
2241: #
2242: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2243: my $found='';
2244: if ($oldsheets{$key}) {
2245: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2246: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2247: if ($name eq $fn) {
2248: $found=$value;
2249: }
2250: }
2251: }
2252: unless ($found) {
2253: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2254: if ($oldsheets{$key}) {
2255: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2256: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2257: if ($name eq $fn) {
2258: $found=$value;
2259: }
2260: }
2261: }
2262: }
2263: #
2264: # Check if still valid
2265: #
2266: if ($found) {
2267: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2268: $found='';
2269: }
2270: }
2271: if ($found) {
2272: #
2273: # Return what was cached
2274: #
2275: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2276: } else {
2277: #
2278: # Not cached
2279: #
2280: my ($thissheet,$sheetdata)=&makenewsheet($uname,$udom,$stype,$usymb);
2281: &readsheet($thissheet,$sheetdata,$fn);
2282: &updatesheet($thissheet,$sheetdata);
2283: &loadrows($thissheet,$sheetdata);
2284: &calcsheet($thissheet,$sheetdata);
2285: @exportarr=&exportdata($thissheet,$sheetdata);
2286: #
2287: # Store now
2288: #
2289: my $cid=$ENV{'request.course.id'};
2290: my $current='';
2291: if ($stype eq 'studentcalc') {
2292: $current=&Apache::lonnet::reply('get:'.
2293: $ENV{'course.'.$cid.'.domain'}.':'.
2294: $ENV{'course.'.$cid.'.num'}.
2295: ':nohist_calculatedsheets:'.
2296: &Apache::lonnet::escape($key),
2297: $ENV{'course.'.$cid.'.home'});
2298: } else {
2299: $current=&Apache::lonnet::reply('get:'.$sheetdata->{'udom'}.':'.
2300: $sheetdata->{'uname'}.
2301: ':nohist_calculatedsheets_'.
2302: $ENV{'request.course.id'}.':'.
2303: &Apache::lonnet::escape($key),
2304: $sheetdata->{'uhome'});
2305: }
2306: my %currentlystored=();
2307: unless ($current=~/^error\:/) {
2308: foreach (split(/___&\___/,&Apache::lonnet::unescape($current))) {
2309: my ($name,$value)=split(/___=___/,$_);
2310: $currentlystored{$name}=$value;
2311: }
2312: }
2313: $currentlystored{$fn}=join('___;___',@exportarr);
2314: #
2315: my $newstore='';
2316: foreach (keys(%currentlystored)) {
2317: if ($newstore) { $newstore.='___&___'; }
2318: $newstore.=$_.'___=___'.$currentlystored{$_};
2319: }
2320: my $now=time;
2321: if ($stype eq 'studentcalc') {
2322: &Apache::lonnet::reply('put:'.
2323: $ENV{'course.'.$cid.'.domain'}.':'.
2324: $ENV{'course.'.$cid.'.num'}.
2325: ':nohist_calculatedsheets:'.
2326: &Apache::lonnet::escape($key).'='.
2327: &Apache::lonnet::escape($newstore).'&'.
2328: &Apache::lonnet::escape($key).'.time='.$now,
2329: $ENV{'course.'.$cid.'.home'});
2330: } else {
2331: &Apache::lonnet::reply('put:'.
2332: $sheetdata->{'udom'}.':'.
2333: $sheetdata->{'uname'}.
2334: ':nohist_calculatedsheets_'.
2335: $ENV{'request.course.id'}.':'.
2336: &Apache::lonnet::escape($key).'='.
2337: &Apache::lonnet::escape($newstore).'&'.
2338: &Apache::lonnet::escape($key).'.time='.$now,
2339: $sheetdata->{'uhome'});
2340: }
2341: }
2342: return @exportarr;
2343: }
2344:
2345: # ============================================================ Expiration Dates
2346: #
2347: # Load previously cached student spreadsheets for this course
2348: #
2349: sub expirationdates {
2350: undef %expiredates;
2351: my $cid=$ENV{'request.course.id'};
2352: my $reply=&Apache::lonnet::reply('dump:'.
2353: $ENV{'course.'.$cid.'.domain'}.':'.
2354: $ENV{'course.'.$cid.'.num'}.
2355: ':nohist_expirationdates',
2356: $ENV{'course.'.$cid.'.home'});
2357: unless ($reply=~/^error\:/) {
2358: foreach (split(/\&/,$reply)) {
2359: my ($name,$value)=split(/\=/,$_);
2360: $expiredates{&Apache::lonnet::unescape($name)}
2361: =&Apache::lonnet::unescape($value);
2362: }
2363: }
2364: }
2365:
2366: # ===================================================== Calculated sheets cache
2367: #
2368: # Load previously cached student spreadsheets for this course
2369: #
2370:
2371: sub cachedcsheets {
2372: my $cid=$ENV{'request.course.id'};
2373: my $reply=&Apache::lonnet::reply('dump:'.
2374: $ENV{'course.'.$cid.'.domain'}.':'.
2375: $ENV{'course.'.$cid.'.num'}.
2376: ':nohist_calculatedsheets',
2377: $ENV{'course.'.$cid.'.home'});
2378: unless ($reply=~/^error\:/) {
2379: foreach ( split(/\&/,$reply)) {
2380: my ($name,$value)=split(/\=/,$_);
2381: $oldsheets{&Apache::lonnet::unescape($name)}
2382: =&Apache::lonnet::unescape($value);
2383: }
2384: }
2385: }
2386:
2387: # ===================================================== Calculated sheets cache
2388: #
2389: # Load previously cached assessment spreadsheets for this student
2390: #
2391:
2392: sub cachedssheets {
2393: my ($sname,$sdom,$shome)=@_;
2394: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2395: my $cid=$ENV{'request.course.id'};
2396: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2397: ':nohist_calculatedsheets_'.
2398: $ENV{'request.course.id'},
2399: $shome);
2400: unless ($reply=~/^error\:/) {
2401: foreach ( split(/\&/,$reply)) {
2402: my ($name,$value)=split(/\=/,$_);
2403: $oldsheets{&Apache::lonnet::unescape($name)}
2404: =&Apache::lonnet::unescape($value);
2405: }
2406: }
2407: $loadedcaches{$sname.'_'.$sdom}=1;
2408: }
2409: }
2410:
2411: # ===================================================== Calculated sheets cache
2412: #
2413: # Load previously cached assessment spreadsheets for this student
2414: #
2415:
2416: # ================================================================ Main handler
2417: #
2418: # Interactive call to screen
2419: #
2420: #
2421: sub handler {
2422: my $r=shift;
2423:
2424: my $loaderror=&Apache::lonnet::overloaderror($r);
2425: if ($loaderror) { return $loaderror; }
2426: $loaderror= &Apache::lonnet::overloaderror($r,
2427: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
2428: if ($loaderror) { return $loaderror; }
2429:
2430: if ($r->header_only) {
2431: $r->content_type('text/html');
2432: $r->send_http_header;
2433: return OK;
2434: }
2435: # Global directory configs
2436: $includedir = $r->dir_config('lonIncludes');
2437: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
2438: # Needs to be in a course
2439: if (! $ENV{'request.course.fn'}) {
2440: # Not in a course, or not allowed to modify parms
2441: $ENV{'user.error.msg'}=
2442: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2443: return HTTP_NOT_ACCEPTABLE;
2444: }
2445: # Get query string for limited number of parameters
2446: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2447: ['uname','udom','usymb','ufn']);
2448: if ($ENV{'request.role'} =~ /^st\./) {
2449: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
2450: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
2451: }
2452: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2453: $ENV{'form.ufn'}='default_'.$1;
2454: }
2455: # Interactive loading of specific sheet?
2456: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2457: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2458: }
2459: #
2460: # Determine the user name and domain for the sheet.
2461: my $aname;
2462: my $adom;
2463: unless ($ENV{'form.uname'}) {
2464: $aname=$ENV{'user.name'};
2465: $adom=$ENV{'user.domain'};
2466: } else {
2467: $aname=$ENV{'form.uname'};
2468: $adom=$ENV{'form.udom'};
2469: }
2470: #
2471: # Open page
2472: $r->content_type('text/html');
2473: $r->header_out('Cache-control','no-cache');
2474: $r->header_out('Pragma','no-cache');
2475: $r->send_http_header;
2476: # Screen output
2477: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2478: if ($ENV{'request.role'} !~ /^st\./) {
2479: $r->print(<<ENDSCRIPT);
2480: <script language="JavaScript">
2481:
2482: function celledit(cn,cf) {
2483: var cnf=prompt(cn,cf);
2484: if (cnf!=null) {
2485: document.sheet.unewfield.value=cn;
2486: document.sheet.unewformula.value=cnf;
2487: document.sheet.submit();
2488: }
2489: }
2490:
2491: function changesheet(cn) {
2492: document.sheet.unewfield.value=cn;
2493: document.sheet.unewformula.value='changesheet';
2494: document.sheet.submit();
2495: }
2496:
2497: function insertrow(cn) {
2498: document.sheet.unewfield.value='insertrow';
2499: document.sheet.unewformula.value=cn;
2500: document.sheet.submit();
2501: }
2502:
2503: </script>
2504: ENDSCRIPT
2505: }
2506: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
2507: '<form action="'.$r->uri.'" name=sheet method=post>');
2508: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
2509: &hiddenfield('udom',$ENV{'form.udom'}).
2510: &hiddenfield('usymb',$ENV{'form.usymb'}).
2511: &hiddenfield('unewfield','').
2512: &hiddenfield('unewformula',''));
2513: $r->rflush();
2514: #
2515: # Full recalc?
2516: if ($ENV{'form.forcerecalc'}) {
2517: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2518: undef %spreadsheets;
2519: undef %courserdatas;
2520: undef %userrdatas;
2521: undef %defaultsheets;
2522: undef %updatedata;
2523: }
2524: # Read new sheet or modified worksheet
2525: $r->uri=~/\/(\w+)$/;
2526: my ($asheet,$asheetdata)=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2527: #
2528: # If a new formula had been entered, go from work copy
2529: if ($ENV{'form.unewfield'}) {
2530: $r->print('<h2>Modified Workcopy</h2>');
2531: $ENV{'form.unewformula'}=~s/\'/\"/g;
2532: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2533: $ENV{'form.unewformula'}.'<p>');
2534: &setfilename($asheet,$ENV{'form.ufn'});
2535: &tmpread($asheet,$ENV{'form.unewfield'},$ENV{'form.unewformula'});
2536: } elsif ($ENV{'form.saveas'}) {
2537: &setfilename($asheet,$ENV{'form.ufn'});
2538: &tmpread($asheet);
2539: } else {
2540: &readsheet($asheet,$asheetdata,$ENV{'form.ufn'});
2541: }
2542: # Print out user information
2543: unless ($asheetdata->{'sheettype'} eq 'classcalc') {
2544: $r->print('<p><b>User:</b> '.$asheetdata->{'uname'}.
2545: '<br><b>Domain:</b> '.$asheetdata->{'udom'});
2546: # if (&getcsec($asheet) eq '-1') {
2547: # $r->print('<h3><font color=red>'.
2548: # 'Not a student in this course</font></h3>');
2549: # } else {
2550: $r->print('<br><b>Section/Group:</b> '.$asheetdata->{'csec'});
2551: # }
2552: if ($ENV{'form.usymb'}) {
2553: $r->print('<br><b>Assessment:</b> <tt>'.
2554: $ENV{'form.usymb'}.'</tt>');
2555: }
2556: }
2557: #
2558: # Check user permissions
2559: if (($asheetdata->{'sheettype'} eq 'classcalc' ) ||
2560: ($asheetdata->{'uname'} ne $ENV{'user.name'} ) ||
2561: ($asheetdata->{'udom'} ne $ENV{'user.domain'})) {
2562: unless (&Apache::lonnet::allowed('vgr',$asheetdata->{'cid'})) {
2563: $r->print('<h1>Access Permission Denied</h1>'.
2564: '</form></body></html>');
2565: return OK;
2566: }
2567: }
2568: # Additional options
2569: $r->print('<br />'.
2570: '<input type="submit" name="forcerecalc" '.
2571: 'value="Completely Recalculate Sheet"><p>');
2572: if ($asheetdata->{'sheettype'} eq 'assesscalc') {
2573: $r->print('<p><font size=+2>'.
2574: '<a href="/adm/studentcalc?'.
2575: 'uname='.$asheetdata->{'uname'}.
2576: '&udom='.$asheetdata->{'udom'}.'">'.
2577: 'Level up: Student Sheet</a></font><p>');
2578: }
2579: if (($asheetdata->{'sheettype'} eq 'studentcalc') &&
2580: (&Apache::lonnet::allowed('vgr',$asheetdata->{'cid'}))) {
2581: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
2582: 'Level up: Course Sheet</a></font><p>');
2583: }
2584: # Save dialog
2585: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2586: my $fname=$ENV{'form.ufn'};
2587: $fname=~s/\_[^\_]+$//;
2588: if ($fname eq 'default') { $fname='course_default'; }
2589: $r->print('<input type=submit name=saveas value="Save as ...">'.
2590: '<input type=text size=20 name=newfn value="'.$fname.'">'.
2591: 'make default: <input type=checkbox name="makedefufn"><p>');
2592: }
2593: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2594: # Load dialog
2595: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2596: $r->print('<p><input type=submit name=load value="Load ...">'.
2597: '<select name="loadthissheet">'.
2598: '<option name="default">Default</option>');
2599: foreach (&othersheets($asheet,$asheetdata->{'sheettype'})) {
2600: $r->print('<option name="'.$_.'"');
2601: if ($ENV{'form.ufn'} eq $_) {
2602: $r->print(' selected');
2603: }
2604: $r->print('>'.$_.'</option>');
2605: }
2606: $r->print('</select><p>');
2607: if ($asheetdata->{'sheettype'} eq 'studentcalc') {
2608: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2609: }
2610: }
2611: # Cached sheets
2612: &expirationdates();
2613: undef %oldsheets;
2614: undef %loadedcaches;
2615: if ($asheetdata->{'sheettype'} eq 'classcalc') {
2616: $r->print("Loading previously calculated student sheets ...\n");
2617: $r->rflush();
2618: &cachedcsheets();
2619: } elsif ($asheetdata->{'sheettype'} eq 'studentcalc') {
2620: $r->print("Loading previously calculated assessment sheets ...\n");
2621: $r->rflush();
2622: &cachedssheets($asheetdata->{'uname'},$asheetdata->{'udom'},
2623: $asheetdata->{'uhome'});
2624: }
2625: # Update sheet, load rows
2626: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2627: $r->rflush();
2628: #
2629: &updatesheet($asheet,$asheetdata);
2630: $r->print("Updated rows, loading row data ...\n");
2631: $r->rflush();
2632: #
2633: &loadrows($asheet,$asheetdata,$r);
2634: $r->print("Loaded row data, calculating sheet ...<br>\n");
2635: $r->rflush();
2636: #
2637: my $calcoutput=&calcsheet($asheet);
2638: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2639: # See if something to save
2640: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2641: my $fname='';
2642: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2643: $fname=~s/\W/\_/g;
2644: if ($fname eq 'default') { $fname='course_default'; }
2645: $fname.='_'.$asheetdata->{'sheettype'};
2646: &setfilename($asheet,$fname);
2647: $ENV{'form.ufn'}=$fname;
2648: $r->print('<p>Saving spreadsheet: '.
2649: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2650: }
2651: }
2652: #
2653: #Write the modified worksheet
2654: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2655: &tmpwrite($asheet);
2656: if ($asheetdata->{'sheettype'} eq 'studentcalc') {
2657: $r->print('<br>Show rows with empty A column: ');
2658: } else {
2659: $r->print('<br>Show empty rows: ');
2660: }
2661: #
2662: $r->print(&hiddenfield('userselhidden','true').
2663: '<input type="checkbox" name="showall" onClick="submit()"');
2664: #
2665: if ($ENV{'form.showall'}) {
2666: $r->print(' checked');
2667: } else {
2668: unless ($ENV{'form.userselhidden'}) {
2669: unless
2670: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2671: $r->print(' checked');
2672: $ENV{'form.showall'}=1;
2673: }
2674: }
2675: }
2676: $r->print('>');
2677: #
2678: # CSV format checkbox (classcalc sheets only)
2679: if ($asheetdata->{'sheettype'} eq 'classcalc') {
2680: $r->print(' Output CSV format: <input type="checkbox" '.
2681: 'name="showcsv" onClick="submit()"');
2682: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2683: $r->print('>');
2684: }
2685: #
2686: # Buttons to insert rows
2687: $r->print(' Student Status: '.
2688: &Apache::lonhtmlcommon::StatusOptions
2689: ($ENV{'form.Status'},'sheet'));
2690: $r->print(<<ENDINSERTBUTTONS);
2691: <br>
2692: <input type='button' onClick='insertrow("top");'
2693: value='Insert Row Top'>
2694: <input type='button' onClick='insertrow("bottom");'
2695: value='Insert Row Bottom'><br>
2696: ENDINSERTBUTTONS
2697: # Print out sheet
2698: &outsheet($r,$asheet,$asheetdata);
2699: $r->print('</form></body></html>');
2700: # Done
2701: return OK;
2702: }
2703:
2704: 1;
2705: __END__
2706:
2707:
2708:
2709:
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