1: #
2: # $Id: lonspreadsheet.pm,v 1.100.4.1 2002/09/27 18:43:10 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # 11/11,11/15,11/27,12/04,12/05,12/06,12/07,
30: # 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30,
31: # 01/01/01,02/01,03/01,19/01,20/01,22/01,
32: # 03/05,03/08,03/10,03/12,03/13,03/15,03/17,
33: # 03/19,03/20,03/21,03/27,04/05,04/09,
34: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17,
35: # 10/16,10/17,10/20,11/05,11/28,12/27 Gerd Kortemeyer
36: # 01/14/02 Matthew
37: # 02/04/02 Matthew
38:
39: # POD required stuff:
40:
41: =head1 NAME
42:
43: lonspreadsheet
44:
45: =head1 SYNOPSIS
46:
47: Spreadsheet interface to internal LON-CAPA data
48:
49: =head1 DESCRIPTION
50:
51: Lonspreadsheet provides course coordinators the ability to manage their
52: students grades online. The students are able to view their own grades, but
53: not the grades of their peers. The spreadsheet is highly customizable,
54: offering the ability to use Perl code to manipulate data, as well as many
55: built-in functions.
56:
57:
58: =head2 Functions available to user of lonspreadsheet
59:
60: =over 4
61:
62: =cut
63:
64: package Apache::lonspreadsheet;
65:
66: use strict;
67: use Safe;
68: use Safe::Hole;
69: use Opcode;
70: use Apache::lonnet;
71: use Apache::Constants qw(:common :http);
72: use GDBM_File;
73: use HTML::TokeParser;
74: use Apache::lonhtmlcommon;
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{\''.$matches[0].'\'}';
771: } elsif ($#matches > 0) {
772: # more than one match. Look for a concise one
773: $returnvalue = "'non-unique parameter name : $expression'";
774: foreach (@matches) {
775: if (/^$expression$/) {
776: $returnvalue = '$c{\''.$_.'\'}';
777: }
778: }
779: } else {
780: $returnvalue = "'bad parameter name : $expression'";
781: }
782: return $returnvalue;
783: }
784: }
785:
786: sub sett {
787: %t=();
788: my $pattern='';
789: if ($sheettype eq 'assesscalc') {
790: $pattern='A';
791: } else {
792: $pattern='[A-Z]';
793: }
794:
795: # Deal with the template row
796: foreach (keys(%f)) {
797: if ($_=~/template\_(\w)/) {
798: my $col=$1;
799: unless ($col=~/^$pattern/) {
800: foreach (keys(%f)) {
801: if ($_=~/A(\d+)/) {
802: my $trow=$1;
803: if ($trow) {
804: # Get the name of this cell
805: my $lb=$col.$trow;
806: # Grab the template declaration
807: $t{$lb}=$f{'template_'.$col};
808: # Replace '#' with the row number
809: $t{$lb}=~s/\#/$trow/g;
810: # Replace '....' with ','
811: $t{$lb}=~s/\.\.+/\,/g;
812: # Replace 'A0' with the value from 'A0'
813: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
814: # Replace parameters
815: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
816: }
817: }
818: }
819: }
820: }
821: }
822:
823: # Deal with the normal cells
824: foreach (keys(%f)) {
825: if (($f{$_}) && ($_!~/template\_/)) {
826: my $matches=($_=~/^$pattern(\d+)/);
827: if (($matches) && ($1)) {
828: unless ($f{$_}=~/^\!/) {
829: $t{$_}=$c{$_};
830: }
831: } else {
832: $t{$_}=$f{$_};
833: $t{$_}=~s/\.\.+/\,/g;
834: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
835: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
836: }
837: }
838: }
839: # For inserted lines, [B-Z] is also valid
840:
841: unless ($sheettype eq 'assesscalc') {
842: foreach (keys(%f)) {
843: if ($_=~/[B-Z](\d+)/) {
844: if ($f{'A'.$1}=~/^[\~\-]/) {
845: $t{$_}=$f{$_};
846: $t{$_}=~s/\.\.+/\,/g;
847: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
848: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
849: }
850: }
851: }
852: }
853:
854: # For some reason 'A0' gets special treatment... This seems superfluous
855: # but I imagine it is here for a reason.
856: $t{'A0'}=$f{'A0'};
857: $t{'A0'}=~s/\.\.+/\,/g;
858: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
859: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
860: }
861:
862: sub calc {
863: undef %v;
864: &sett();
865: my $notfinished=1;
866: my $lastcalc='';
867: my $depth=0;
868: while ($notfinished) {
869: $notfinished=0;
870: foreach (keys(%t)) {
871: my $old=$v{$_};
872: $v{$_}=eval $t{$_};
873: if ($@) {
874: undef %v;
875: return $_.': '.$@;
876: }
877: if ($v{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
878: }
879: $depth++;
880: if ($depth>100) {
881: undef %v;
882: return $lastcalc.': Maximum calculation depth exceeded';
883: }
884: }
885: return '';
886: }
887:
888: sub templaterow {
889: my @cols=();
890: $cols[0]='<b><font size=+1>Template</font></b>';
891: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
892: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
893: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
894: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
895: my $fm=$f{'template_'.$_};
896: $fm=~s/[\'\"]/\&\#34;/g;
897: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
898: }
899: return @cols;
900: }
901:
902: sub outrowassess {
903: my $n=shift;
904: my @cols=();
905: if ($n) {
906: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
907: if ($rl{$usy}) {
908: $cols[0]=$rl{$usy}.'<br>'.
909: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
910: ')"><option name="default">Default</option>';
911: } else { $cols[0]=''; }
912: foreach (@os) {
913: $cols[0].='<option name="'.$_.'"';
914: if ($ufn eq $_) {
915: $cols[0].=' selected';
916: }
917: $cols[0].='>'.$_.'</option>';
918: }
919: $cols[0].='</select>';
920: } else {
921: $cols[0]='<b><font size=+1>Export</font></b>';
922: }
923: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
924: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
925: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
926: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
927: my $fm=$f{$_.$n};
928: $fm=~s/[\'\"]/\&\#34;/g;
929: push(@cols,"'$_$n','$fm'".'___eq___'.$v{$_.$n});
930: }
931: return @cols;
932: }
933:
934: sub outrow {
935: my $n=shift;
936: my @cols=();
937: if ($n) {
938: $cols[0]=$rl{$f{'A'.$n}};
939: } else {
940: $cols[0]='<b><font size=+1>Export</font></b>';
941: }
942: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
943: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
944: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
945: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
946: my $fm=$f{$_.$n};
947: $fm=~s/[\'\"]/\&\#34;/g;
948: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
949: }
950: return @cols;
951: }
952:
953: sub exportrowa {
954: my @exportarray=();
955: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
956: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
957: $exportarray[$#exportarray+1]=$v{$_.'0'};
958: }
959: return @exportarray;
960: }
961:
962: # ------------------------------------------- End of "Inside of the safe space"
963: ENDDEFS
964: $safeeval->reval($code);
965: return $safeeval;
966: }
967:
968: # ------------------------------------------------ Add or change formula values
969:
970: sub setformulas {
971: my ($safeeval,%f)=@_;
972: %{$safeeval->varglob('f')}=%f;
973: }
974:
975: # ------------------------------------------------ Add or change formula values
976:
977: sub setconstants {
978: my ($safeeval,%c)=@_;
979: %{$safeeval->varglob('c')}=%c;
980: }
981:
982: # --------------------------------------------- Set names of other spreadsheets
983:
984: sub setothersheets {
985: my ($safeeval,@os)=@_;
986: @{$safeeval->varglob('os')}=@os;
987: }
988:
989: # ------------------------------------------------ Add or change formula values
990:
991: sub setrowlabels {
992: my ($safeeval,%rl)=@_;
993: %{$safeeval->varglob('rl')}=%rl;
994: }
995:
996: # ------------------------------------------------------- Calculate spreadsheet
997:
998: sub calcsheet {
999: my $safeeval=shift;
1000: return $safeeval->reval('&calc();');
1001: }
1002:
1003: # ------------------------------------------------------------------ Get values
1004:
1005: sub getvalues {
1006: my $safeeval=shift;
1007: return $safeeval->reval('%v');
1008: }
1009:
1010: # ---------------------------------------------------------------- Get formulas
1011:
1012: sub getformulas {
1013: my $safeeval=shift;
1014: return %{$safeeval->varglob('f')};
1015: }
1016:
1017: # ----------------------------------------------------- Get value of $f{'A'.$n}
1018:
1019: sub getfa {
1020: my ($safeeval,$n)=@_;
1021: return $safeeval->reval('$f{"A'.$n.'"}');
1022: }
1023:
1024: # -------------------------------------------------------------------- Get type
1025:
1026: sub gettype {
1027: my $safeeval=shift;
1028: return $safeeval->reval('$sheettype');
1029: }
1030:
1031: # ------------------------------------------------------------------ Set maxrow
1032:
1033: sub setmaxrow {
1034: my ($safeeval,$row)=@_;
1035: $safeeval->reval('$maxrow='.$row.';');
1036: }
1037:
1038: # ------------------------------------------------------------------ Get maxrow
1039:
1040: sub getmaxrow {
1041: my $safeeval=shift;
1042: return $safeeval->reval('$maxrow');
1043: }
1044:
1045: # ---------------------------------------------------------------- Set filename
1046:
1047: sub setfilename {
1048: my ($safeeval,$fn)=@_;
1049: $safeeval->reval('$filename="'.$fn.'";');
1050: }
1051:
1052: # ---------------------------------------------------------------- Get filename
1053:
1054: sub getfilename {
1055: my $safeeval=shift;
1056: return $safeeval->reval('$filename');
1057: }
1058:
1059: # --------------------------------------------------------------- Get course ID
1060:
1061: sub getcid {
1062: my $safeeval=shift;
1063: return $safeeval->reval('$cid');
1064: }
1065:
1066: # --------------------------------------------------------- Get course filename
1067:
1068: sub getcfn {
1069: my $safeeval=shift;
1070: return $safeeval->reval('$cfn');
1071: }
1072:
1073: # ----------------------------------------------------------- Get course number
1074:
1075: sub getcnum {
1076: my $safeeval=shift;
1077: return $safeeval->reval('$cnum');
1078: }
1079:
1080: # ------------------------------------------------------------- Get course home
1081:
1082: sub getchome {
1083: my $safeeval=shift;
1084: return $safeeval->reval('$chome');
1085: }
1086:
1087: # ----------------------------------------------------------- Get course domain
1088:
1089: sub getcdom {
1090: my $safeeval=shift;
1091: return $safeeval->reval('$cdom');
1092: }
1093:
1094: # ---------------------------------------------------------- Get course section
1095:
1096: sub getcsec {
1097: my $safeeval=shift;
1098: return $safeeval->reval('$csec');
1099: }
1100:
1101: # --------------------------------------------------------------- Get user name
1102:
1103: sub getuname {
1104: my $safeeval=shift;
1105: return $safeeval->reval('$uname');
1106: }
1107:
1108: # ------------------------------------------------------------- Get user domain
1109:
1110: sub getudom {
1111: my $safeeval=shift;
1112: return $safeeval->reval('$udom');
1113: }
1114:
1115: # --------------------------------------------------------------- Get user home
1116:
1117: sub getuhome {
1118: my $safeeval=shift;
1119: return $safeeval->reval('$uhome');
1120: }
1121:
1122: # -------------------------------------------------------------------- Get symb
1123:
1124: sub getusymb {
1125: my $safeeval=shift;
1126: return $safeeval->reval('$usymb');
1127: }
1128:
1129: # ------------------------------------------------------------- Export of A-row
1130:
1131: sub exportdata {
1132: my $safeeval=shift;
1133: return $safeeval->reval('&exportrowa()');
1134: }
1135:
1136:
1137: # ========================================================== End of Spreadsheet
1138: # =============================================================================
1139:
1140: #
1141: # Procedures for screen output
1142: #
1143: # --------------------------------------------- Produce output row n from sheet
1144:
1145: sub rown {
1146: my ($safeeval,$n)=@_;
1147: my $defaultbg;
1148: my $rowdata='';
1149: my $dataflag=0;
1150: unless ($n eq '-') {
1151: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1152: } else {
1153: $defaultbg='#E0FF';
1154: }
1155: unless ($ENV{'form.showcsv'}) {
1156: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1157: } else {
1158: $rowdata.="\n".'"'.$n.'"';
1159: }
1160: my $showf=0;
1161: my $proc;
1162: my $maxred=1;
1163: my $sheettype=&gettype($safeeval);
1164: if ($sheettype eq 'studentcalc') {
1165: $proc='&outrowassess';
1166: $maxred=26;
1167: } else {
1168: $proc='&outrow';
1169: }
1170: if ($sheettype eq 'assesscalc') {
1171: $maxred=1;
1172: } else {
1173: $maxred=26;
1174: }
1175: if (&getfa($safeeval,$n)=~/^[\~\-]/) { $maxred=1; }
1176: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1177: foreach ($safeeval->reval($proc.'('.$n.')')) {
1178: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1179: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1180: if ((($vl ne '') || ($vl eq '0')) &&
1181: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1182: if ($showf==0) { $vl=$_; }
1183: unless ($ENV{'form.showcsv'}) {
1184: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1185: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1186: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1187: if ($vl eq '') {
1188: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1189: }
1190: $rowdata.='<td bgcolor='.$bgcolor.'>';
1191: if ($ENV{'request.role'} =~ /^st\./) {
1192: $rowdata.=$vl;
1193: } else {
1194: $rowdata.='<a href="javascript:celledit('.$fm.');">'.
1195: $vl.'</a>';
1196: }
1197: $rowdata.='</td>';
1198: } else {
1199: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1200: }
1201: } else {
1202: $rowdata.=',"'.$vl.'"';
1203: }
1204: $showf++;
1205: } # End of foreach($safeval...)
1206: if ($ENV{'form.showall'} || ($dataflag)) {
1207: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1208: } else {
1209: return '';
1210: }
1211: }
1212:
1213: # ------------------------------------------------------------- Print out sheet
1214:
1215: sub outsheet {
1216: my ($r,$safeeval)=@_;
1217: my $maxred;
1218: my $realm;
1219: if (&gettype($safeeval) eq 'assesscalc') {
1220: $maxred=1;
1221: $realm='Assessment';
1222: } elsif (&gettype($safeeval) eq 'studentcalc') {
1223: $maxred=26;
1224: $realm='User';
1225: } else {
1226: $maxred=26;
1227: $realm='Course';
1228: }
1229: my $maxyellow=52-$maxred;
1230: my $tabledata;
1231: unless ($ENV{'form.showcsv'}) {
1232: $tabledata=
1233: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1234: $realm.'</font></th>'.
1235: '<td bgcolor=#FFDDDD colspan='.$maxred.
1236: '><b><font size=+1>Import</font></b></td>'.
1237: '<td colspan='.$maxyellow.
1238: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1239: my $showf=0;
1240: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1241: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1242: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1243: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1244: $showf++;
1245: if ($showf<=$maxred) {
1246: $tabledata.='<td bgcolor="#FFDDDD">';
1247: } else {
1248: $tabledata.='<td>';
1249: }
1250: $tabledata.="<b><font size=+1>$_</font></b></td>";
1251: }
1252: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1253: } else { $tabledata='<pre>'; }
1254:
1255: $r->print($tabledata);
1256:
1257: my $row;
1258: my $maxrow=&getmaxrow($safeeval);
1259:
1260: my @sortby=();
1261: my @sortidx=();
1262: for ($row=1;$row<=$maxrow;$row++) {
1263: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1264: $sortidx[$row-1]=$row-1;
1265: }
1266: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1267:
1268: my $what='Student';
1269: if (&gettype($safeeval) eq 'assesscalc') {
1270: $what='Item';
1271: } elsif (&gettype($safeeval) eq 'studentcalc') {
1272: $what='Assessment';
1273: }
1274:
1275: my $n=0;
1276: for ($row=0;$row<$maxrow;$row++) {
1277: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1278: if ($thisrow) {
1279: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1280: $r->print("</table>\n<br>\n");
1281: $r->rflush();
1282: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1283: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1284: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1285: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1286: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1287: $r->print('<td>'.$_.'</td>');
1288: }
1289: $r->print('</tr>');
1290: }
1291: $n++;
1292: $r->print($thisrow);
1293: }
1294: }
1295: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1296: }
1297:
1298: #
1299: # ----------------------------------------------- Read list of available sheets
1300: #
1301: sub othersheets {
1302: my ($safeeval,$stype)=@_;
1303: #
1304: my $cnum=&getcnum($safeeval);
1305: my $cdom=&getcdom($safeeval);
1306: my $chome=&getchome($safeeval);
1307: #
1308: my @alternatives=();
1309: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1310: my ($tmp) = keys(%results);
1311: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1312: @alternatives = sort (keys(%results));
1313: }
1314: return @alternatives;
1315: }
1316:
1317:
1318: #
1319: # -------------------------------------- Parse a spreadsheet
1320: #
1321: sub parse_sheet {
1322: # $sheetxml is a scalar reference or a scalar
1323: my ($sheetxml) = @_;
1324: if (! ref($sheetxml)) {
1325: my $tmp = $sheetxml;
1326: $sheetxml = \$tmp;
1327: }
1328: my %f;
1329: my $parser=HTML::TokeParser->new($sheetxml);
1330: my $token;
1331: while ($token=$parser->get_token) {
1332: if ($token->[0] eq 'S') {
1333: if ($token->[1] eq 'field') {
1334: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1335: $parser->get_text('/field');
1336: }
1337: if ($token->[1] eq 'template') {
1338: $f{'template_'.$token->[2]->{'col'}}=
1339: $parser->get_text('/template');
1340: }
1341: }
1342: }
1343: return \%f;
1344: }
1345:
1346: #
1347: # -------------------------------------- Read spreadsheet formulas for a course
1348: #
1349:
1350: sub readsheet {
1351: my ($safeeval,$fn)=@_;
1352: my $stype=&gettype($safeeval);
1353: my $cnum=&getcnum($safeeval);
1354: my $cdom=&getcdom($safeeval);
1355: my $chome=&getchome($safeeval);
1356:
1357: if (! defined($fn)) {
1358: # There is no filename. Look for defaults in course and global, cache
1359: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1360: my %tmphash = &Apache::lonnet::get('environment',
1361: ['spreadsheet_default_'.$stype],
1362: $cdom,$cnum);
1363: my ($tmp) = keys(%tmphash);
1364: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1365: $fn = 'default_'.$stype;
1366: } else {
1367: $fn = $tmphash{'spreadsheet_default_'.$stype};
1368: }
1369: unless (($fn) && ($fn!~/^error\:/)) {
1370: $fn='default_'.$stype;
1371: }
1372: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1373: }
1374: }
1375:
1376: # ---------------------------------------------------------- fn now has a value
1377:
1378: &setfilename($safeeval,$fn);
1379:
1380: # ------------------------------------------------------ see if sheet is cached
1381: my $fstring='';
1382: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1383: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1384: } else {
1385:
1386: # ---------------------------------------------------- Not cached, need to read
1387:
1388: my %f=();
1389:
1390: if ($fn=~/^default\_/) {
1391: my $sheetxml='';
1392: my $fh;
1393: my $dfn=$fn;
1394: $dfn=~s/\_/\./g;
1395: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1396: $sheetxml=join('',<$fh>);
1397: } else {
1398: $sheetxml='<field row="0" col="A">"Error"</field>';
1399: }
1400: %f=%{&parse_sheet(\$sheetxml)};
1401: } elsif($fn=~/\/*\.spreadsheet$/) {
1402: my $sheetxml=&Apache::lonnet::getfile
1403: (&Apache::lonnet::filelocation('',$fn));
1404: if ($sheetxml == -1) {
1405: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1406: .$fn.'"</field>';
1407: }
1408: %f=%{&parse_sheet(\$sheetxml)};
1409: } else {
1410: my $sheet='';
1411: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1412: my ($tmp) = keys(%tmphash);
1413: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1414: foreach (keys(%tmphash)) {
1415: $f{$_}=$tmphash{$_};
1416: }
1417: }
1418: }
1419: # --------------------------------------------------------------- Cache and set
1420: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1421: &setformulas($safeeval,%f);
1422: }
1423: }
1424:
1425: # -------------------------------------------------------- Make new spreadsheet
1426:
1427: sub makenewsheet {
1428: my ($uname,$udom,$stype,$usymb)=@_;
1429: my $safeeval=initsheet($stype);
1430: $safeeval->reval(
1431: '$uname="'.$uname.
1432: '";$udom="'.$udom.
1433: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1434: '";$sheettype="'.$stype.
1435: '";$usymb="'.$usymb.
1436: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1437: $ENV{'request.course.id'}).
1438: '";$cid="'.$ENV{'request.course.id'}.
1439: '";$cfn="'.$ENV{'request.course.fn'}.
1440: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1441: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1442: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1443: return $safeeval;
1444: }
1445:
1446: # ------------------------------------------------------------ Save spreadsheet
1447:
1448: sub writesheet {
1449: my ($safeeval,$makedef)=@_;
1450: my $cid=&getcid($safeeval);
1451: if (&Apache::lonnet::allowed('opa',$cid)) {
1452: my %f=&getformulas($safeeval);
1453: my $stype=&gettype($safeeval);
1454: my $cnum=&getcnum($safeeval);
1455: my $cdom=&getcdom($safeeval);
1456: my $chome=&getchome($safeeval);
1457: my $fn=&getfilename($safeeval);
1458:
1459: # ------------------------------------------------------------- Cache new sheet
1460: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1461: # ----------------------------------------------------------------- Write sheet
1462: my $sheetdata='';
1463: foreach (keys(%f)) {
1464: unless ($f{$_} eq 'import') {
1465: $sheetdata.=&Apache::lonnet::escape($_).'='.
1466: &Apache::lonnet::escape($f{$_}).'&';
1467: }
1468: }
1469: $sheetdata=~s/\&$//;
1470: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1471: $sheetdata,$chome);
1472: if ($reply eq 'ok') {
1473: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1474: $stype.'_spreadsheets:'.
1475: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1476: $ENV{'user.domain'},
1477: $chome);
1478: if ($reply eq 'ok') {
1479: if ($makedef) {
1480: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1481: ':environment:spreadsheet_default_'.$stype.'='.
1482: &Apache::lonnet::escape($fn),
1483: $chome);
1484: } else {
1485: return $reply;
1486: }
1487: } else {
1488: return $reply;
1489: }
1490: } else {
1491: return $reply;
1492: }
1493: }
1494: return 'unauthorized';
1495: }
1496:
1497: # ----------------------------------------------- Make a temp copy of the sheet
1498: # "Modified workcopy" - interactive only
1499: #
1500:
1501: sub tmpwrite {
1502: my $safeeval=shift;
1503: my $fn=$ENV{'user.name'}.'_'.
1504: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1505: &getfilename($safeeval);
1506: $fn=~s/\W/\_/g;
1507: $fn=$tmpdir.$fn.'.tmp';
1508: my $fh;
1509: if ($fh=Apache::File->new('>'.$fn)) {
1510: print $fh join("\n",&getformulas($safeeval));
1511: }
1512: }
1513:
1514: # ---------------------------------------------------------- Read the temp copy
1515:
1516: sub tmpread {
1517: my ($safeeval,$nfield,$nform)=@_;
1518: my $fn=$ENV{'user.name'}.'_'.
1519: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1520: &getfilename($safeeval);
1521: $fn=~s/\W/\_/g;
1522: $fn=$tmpdir.$fn.'.tmp';
1523: my $fh;
1524: my %fo=();
1525: my $countrows=0;
1526: if ($fh=Apache::File->new($fn)) {
1527: my $name;
1528: while ($name=<$fh>) {
1529: chomp($name);
1530: my $value=<$fh>;
1531: chomp($value);
1532: $fo{$name}=$value;
1533: if ($name=~/^A(\d+)$/) {
1534: if ($1>$countrows) {
1535: $countrows=$1;
1536: }
1537: }
1538: }
1539: }
1540: if ($nform eq 'changesheet') {
1541: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1542: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1543: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1544: }
1545: } elsif ($nfield eq 'insertrow') {
1546: $countrows++;
1547: my $newrow=substr('000000'.$countrows,-7);
1548: if ($nform eq 'top') {
1549: $fo{'A'.$countrows}='--- '.$newrow;
1550: } else {
1551: $fo{'A'.$countrows}='~~~ '.$newrow;
1552: }
1553: } else {
1554: if ($nfield) { $fo{$nfield}=$nform; }
1555: }
1556: &setformulas($safeeval,%fo);
1557: }
1558:
1559: # ================================================================== Parameters
1560: # -------------------------------------------- Figure out a cascading parameter
1561: #
1562: # For this function to work
1563: #
1564: # * parmhash needs to be tied
1565: # * courseopt and useropt need to be initialized for this user and course
1566: #
1567:
1568: sub parmval {
1569: my ($what,$safeeval)=@_;
1570: my $cid=&getcid($safeeval);
1571: my $csec=&getcsec($safeeval);
1572: my $uname=&getuname($safeeval);
1573: my $udom=&getudom($safeeval);
1574: my $symb=&getusymb($safeeval);
1575:
1576: unless ($symb) { return ''; }
1577: my $result='';
1578:
1579: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1580: # ----------------------------------------------------- Cascading lookup scheme
1581: my $rwhat=$what;
1582: $what=~s/^parameter\_//;
1583: $what=~s/\_([^\_]+)$/\.$1/;
1584:
1585: my $symbparm=$symb.'.'.$what;
1586: my $mapparm=$mapname.'___(all).'.$what;
1587: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1588:
1589: my $seclevel=
1590: $usercourseprefix.'.['.
1591: $csec.'].'.$what;
1592: my $seclevelr=
1593: $usercourseprefix.'.['.
1594: $csec.'].'.$symbparm;
1595: my $seclevelm=
1596: $usercourseprefix.'.['.
1597: $csec.'].'.$mapparm;
1598:
1599: my $courselevel=
1600: $usercourseprefix.'.'.$what;
1601: my $courselevelr=
1602: $usercourseprefix.'.'.$symbparm;
1603: my $courselevelm=
1604: $usercourseprefix.'.'.$mapparm;
1605:
1606: # ---------------------------------------------------------- fourth, check user
1607:
1608: if ($uname) {
1609:
1610: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1611:
1612: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1613:
1614: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1615:
1616: }
1617:
1618: # --------------------------------------------------------- third, check course
1619:
1620: if ($csec) {
1621:
1622: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1623:
1624: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1625:
1626: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1627:
1628: }
1629:
1630: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1631:
1632: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1633:
1634: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1635:
1636: # ----------------------------------------------------- second, check map parms
1637:
1638: my $thisparm=$parmhash{$symbparm};
1639: if ($thisparm) { return $thisparm; }
1640:
1641: # -------------------------------------------------------- first, check default
1642:
1643: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1644:
1645: }
1646:
1647: # ---------------------------------------------- Update rows for course listing
1648:
1649: sub updateclasssheet {
1650: my $safeeval=shift;
1651: my $cnum=&getcnum($safeeval);
1652: my $cdom=&getcdom($safeeval);
1653: my $cid=&getcid($safeeval);
1654: my $chome=&getchome($safeeval);
1655:
1656: # ---------------------------------------------- Read class list and row labels
1657:
1658: my $classlst=&Apache::lonnet::reply
1659: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1660: my %currentlist=();
1661: my $now=time;
1662: unless ($classlst=~/^error\:/) {
1663: foreach (split(/\&/,$classlst)) {
1664: my ($name,$value)=split(/\=/,$_);
1665: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1666: my $active=1;
1667: if (($end) && ($now>$end)) { $active=0; }
1668: $active = 1 if ($ENV{'form.Status'} eq 'Any');
1669: $active = !$active if ($ENV{'form.Status'} eq 'Expired');
1670: if ($active) {
1671: my $rowlabel='';
1672: $name=&Apache::lonnet::unescape($name);
1673: my ($sname,$sdom)=split(/\:/,$name);
1674: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1675: # if ($ssec==-1) {
1676: # unless ($ENV{'form.showcsv'}) {
1677: # $rowlabel='<font color=red>Data not available: '.$name.
1678: # '</font>';
1679: # } else {
1680: # $rowlabel='ERROR","'.$name.
1681: # '","Data not available","","","';
1682: # }
1683: # } else {
1684: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1685: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1686: ':environment:firstname&middlename&lastname&generation',
1687: &Apache::lonnet::homeserver($sname,$sdom));
1688: unless ($ENV{'form.showcsv'}) {
1689: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1690: '&udom='.$sdom.'">'.
1691: $ssec.' '.$reply{$sname}.'<br>';
1692: foreach ( split(/\&/,$reply)) {
1693: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1694: }
1695: $rowlabel.='</a>';
1696: } else {
1697: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1698: my $ncount=0;
1699: foreach (split(/\&/,$reply)) {
1700: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1701: $ncount++;
1702: }
1703: unless ($ncount==4) { $rowlabel.=',""'; }
1704: $rowlabel=~s/\"$//;
1705: }
1706: # }
1707: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1708: }
1709: } # end of foreach (split(/\&/,$classlst))
1710: #
1711: # -------------------- Find discrepancies between the course row table and this
1712: #
1713: my %f=&getformulas($safeeval);
1714: my $changed=0;
1715:
1716: my $maxrow=0;
1717: my %existing=();
1718:
1719: # ----------------------------------------------------------- Now obsolete rows
1720: foreach (keys(%f)) {
1721: if ($_=~/^A(\d+)/) {
1722: $maxrow=($1>$maxrow)?$1:$maxrow;
1723: $existing{$f{$_}}=1;
1724: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1725: ($f{$_}=~/^(\~\~\~|\-\-\-)/)) {
1726: $f{$_}='!!! Obsolete';
1727: $changed=1;
1728: }
1729: }
1730: }
1731:
1732: # -------------------------------------------------------- New and unknown keys
1733:
1734: foreach (sort keys(%currentlist)) {
1735: unless ($existing{$_}) {
1736: $changed=1;
1737: $maxrow++;
1738: $f{'A'.$maxrow}=$_;
1739: }
1740: }
1741:
1742: if ($changed) { &setformulas($safeeval,%f); }
1743:
1744: &setmaxrow($safeeval,$maxrow);
1745: &setrowlabels($safeeval,%currentlist);
1746:
1747: } else {
1748: return 'Could not access course data';
1749: }
1750: }
1751:
1752: # ----------------------------------- Update rows for student and assess sheets
1753:
1754: sub updatestudentassesssheet {
1755: my $safeeval=shift;
1756: my %bighash;
1757: my $stype=&gettype($safeeval);
1758: my $uname=&getuname($safeeval);
1759: my $udom =&getudom($safeeval);
1760: my %current=();
1761: unless ($updatedata{
1762: $ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}) {
1763: # -------------------------------------------------------------------- Tie hash
1764: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1765: &GDBM_READER(),0640)) {
1766: # --------------------------------------------------------- Get all assessments
1767:
1768: my %allkeys=('timestamp' =>
1769: 'Timestamp of Last Transaction<br>timestamp',
1770: 'subnumber' =>
1771: 'Number of Submissions<br>subnumber',
1772: 'tutornumber' =>
1773: 'Number of Tutor Responses<br>tutornumber',
1774: 'totalpoints' =>
1775: 'Total Points Granted<br>totalpoints');
1776:
1777: my $adduserstr='';
1778: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1779: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1780: $adduserstr='&uname='.&getuname($safeeval).
1781: '&udom='.&getudom($safeeval);
1782: }
1783:
1784: my %allassess=('_feedback' =>
1785: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1786: '">Feedback</a>',
1787: '_evaluation' =>
1788: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1789: '">Evaluation</a>',
1790: '_tutoring' =>
1791: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1792: '">Tutoring</a>',
1793: '_discussion' =>
1794: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1795: '">Discussion</a>'
1796: );
1797:
1798: foreach (keys(%bighash)) {
1799: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1800: my $mapid=$1;
1801: my $resid=$2;
1802: my $id=$mapid.'.'.$resid;
1803: my $srcf=$bighash{$_};
1804: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1805: my $symb=
1806: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1807: '___'.$resid.'___'.
1808: &Apache::lonnet::declutter($srcf);
1809: $allassess{$symb}=
1810: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1811: $bighash{'title_'.$id}.'</a>';
1812: if ($stype eq 'assesscalc') {
1813: foreach (split(/\,/,
1814: &Apache::lonnet::metadata($srcf,'keys'))) {
1815: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1816: my $key=$_;
1817: my $display=
1818: &Apache::lonnet::metadata($srcf,$key.'.display');
1819: unless ($display) {
1820: $display.=
1821: &Apache::lonnet::metadata($srcf,$key.'.name');
1822: }
1823: $display.='<br>'.$key;
1824: $allkeys{$key}=$display;
1825: }
1826: } # end of foreach
1827: }
1828: }
1829: }
1830: } # end of foreach (keys(%bighash))
1831: untie(%bighash);
1832:
1833: #
1834: # %allkeys has a list of storage and parameter displays by unikey
1835: # %allassess has a list of all resource displays by symb
1836: #
1837:
1838: if ($stype eq 'assesscalc') {
1839: %current=%allkeys;
1840: } elsif ($stype eq 'studentcalc') {
1841: %current=%allassess;
1842: }
1843: $updatedata{$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}=
1844: join('___;___',%current);
1845: } else {
1846: return 'Could not access course data';
1847: }
1848: # ------------------------------------------------------ Get current from cache
1849: } else {
1850: %current=split(/\_\_\_\;\_\_\_/,
1851: $updatedata{$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom});
1852: }
1853: # -------------------- Find discrepancies between the course row table and this
1854: #
1855: my %f=&getformulas($safeeval);
1856: my $changed=0;
1857:
1858: my $maxrow=0;
1859: my %existing=();
1860:
1861: # ----------------------------------------------------------- Now obsolete rows
1862: foreach (keys(%f)) {
1863: if ($_=~/^A(\d+)/) {
1864: $maxrow=($1>$maxrow)?$1:$maxrow;
1865: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1866: $existing{$usy}=1;
1867: unless ((defined($current{$usy})) || (!$1) ||
1868: ($f{$_}=~/^(\~\~\~|\-\-\-)/)){
1869: $f{$_}='!!! Obsolete';
1870: $changed=1;
1871: } elsif ($ufn) {
1872: $current{$usy}
1873: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1874: }
1875: }
1876: }
1877:
1878: # -------------------------------------------------------- New and unknown keys
1879:
1880: foreach (keys(%current)) {
1881: unless ($existing{$_}) {
1882: $changed=1;
1883: $maxrow++;
1884: $f{'A'.$maxrow}=$_;
1885: }
1886: }
1887:
1888: if ($changed) { &setformulas($safeeval,%f); }
1889:
1890: &setmaxrow($safeeval,$maxrow);
1891: &setrowlabels($safeeval,%current);
1892:
1893: undef %current;
1894: undef %existing;
1895: }
1896:
1897: # ------------------------------------------------ Load data for one assessment
1898:
1899: sub loadstudent {
1900: my $safeeval=shift;
1901: my %c=();
1902: my %f=&getformulas($safeeval);
1903: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1904: %cachedstores=();
1905: {
1906: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1907: &getuname($safeeval).':'.
1908: &getcid($safeeval),
1909: &getuhome($safeeval));
1910: unless ($reply=~/^error\:/) {
1911: foreach ( split(/\&/,$reply)) {
1912: my ($name,$value)=split(/\=/,$_);
1913: $cachedstores{&Apache::lonnet::unescape($name)}=
1914: &Apache::lonnet::unescape($value);
1915: }
1916: }
1917: }
1918: my @assessdata=();
1919: foreach (keys(%f)) {
1920: if ($_=~/^A(\d+)/) {
1921: my $row=$1;
1922: unless (($f{$_}=~/^[\!\~\-]/) || ($row==0)) {
1923: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1924: @assessdata=&exportsheet(&getuname($safeeval),
1925: &getudom($safeeval),
1926: 'assesscalc',$usy,$ufn);
1927: my $index=0;
1928: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1929: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1930: if ($assessdata[$index]) {
1931: my $col=$_;
1932: if ($assessdata[$index]=~/\D/) {
1933: $c{$col.$row}="'".$assessdata[$index]."'";
1934: } else {
1935: $c{$col.$row}=$assessdata[$index];
1936: }
1937: unless ($col eq 'A') {
1938: $f{$col.$row}='import';
1939: }
1940: }
1941: $index++;
1942: }
1943: }
1944: }
1945: }
1946: $cachedassess='';
1947: undef %cachedstores;
1948: &setformulas($safeeval,%f);
1949: &setconstants($safeeval,%c);
1950: }
1951:
1952: # --------------------------------------------------- Load data for one student
1953:
1954: sub loadcourse {
1955: my ($safeeval,$r)=@_;
1956: my %c=();
1957: my %f=&getformulas($safeeval);
1958: my $total=0;
1959: foreach (keys(%f)) {
1960: if ($_=~/^A(\d+)/) {
1961: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1962: }
1963: }
1964: my $now=0;
1965: my $since=time;
1966: $r->print(<<ENDPOP);
1967: <script>
1968: popwin=open('','popwin','width=400,height=100');
1969: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1970: '<h3>Spreadsheet Calculation Progress</h3>'+
1971: '<form name=popremain>'+
1972: '<input type=text size=35 name=remaining value=Starting></form>'+
1973: '</body></html>');
1974: popwin.document.close();
1975: </script>
1976: ENDPOP
1977: $r->rflush();
1978: foreach (keys(%f)) {
1979: if ($_=~/^A(\d+)/) {
1980: my $row=$1;
1981: unless (($f{$_}=~/^[\!\~\-]/) || ($row==0)) {
1982: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1983: 'studentcalc');
1984: undef %userrdatas;
1985: $now++;
1986: $r->print('<script>popwin.document.popremain.remaining.value="'.
1987: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1988: ' secs remaining";</script>');
1989: $r->rflush();
1990:
1991: my $index=0;
1992: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1993: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1994: if ($studentdata[$index]) {
1995: my $col=$_;
1996: if ($studentdata[$index]=~/\D/) {
1997: $c{$col.$row}="'".$studentdata[$index]."'";
1998: } else {
1999: $c{$col.$row}=$studentdata[$index];
2000: }
2001: unless ($col eq 'A') {
2002: $f{$col.$row}='import';
2003: }
2004: }
2005: $index++;
2006: }
2007: }
2008: }
2009: }
2010: &setformulas($safeeval,%f);
2011: &setconstants($safeeval,%c);
2012: $r->print('<script>popwin.close()</script>');
2013: $r->rflush();
2014: }
2015:
2016: # ------------------------------------------------ Load data for one assessment
2017:
2018: sub loadassessment {
2019: my $safeeval=shift;
2020:
2021: my $uhome=&getuhome($safeeval);
2022: my $uname=&getuname($safeeval);
2023: my $udom=&getudom($safeeval);
2024: my $symb=&getusymb($safeeval);
2025: my $cid=&getcid($safeeval);
2026: my $cnum=&getcnum($safeeval);
2027: my $cdom=&getcdom($safeeval);
2028: my $chome=&getchome($safeeval);
2029:
2030: my $namespace;
2031: unless ($namespace=$cid) { return ''; }
2032:
2033: # ----------------------------------------------------------- Get stored values
2034:
2035: my %returnhash=();
2036:
2037: if ($cachedassess eq $uname.':'.$udom) {
2038: #
2039: # get data out of the dumped stores
2040: #
2041:
2042: my $version=$cachedstores{'version:'.$symb};
2043: my $scope;
2044: for ($scope=1;$scope<=$version;$scope++) {
2045: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2046: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2047: }
2048: }
2049:
2050: } else {
2051: #
2052: # restore individual
2053: #
2054:
2055: my $answer=&Apache::lonnet::reply(
2056: "restore:$udom:$uname:".
2057: &Apache::lonnet::escape($namespace).":".
2058: &Apache::lonnet::escape($symb),$uhome);
2059: foreach (split(/\&/,$answer)) {
2060: my ($name,$value)=split(/\=/,$_);
2061: $returnhash{&Apache::lonnet::unescape($name)}=
2062: &Apache::lonnet::unescape($value);
2063: }
2064: my $version;
2065: for ($version=1;$version<=$returnhash{'version'};$version++) {
2066: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2067: $returnhash{$_}=$returnhash{$version.':'.$_};
2068: }
2069: }
2070: }
2071: # ----------------------------- returnhash now has all stores for this resource
2072:
2073: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
2074:
2075: my @oldkeys=keys %returnhash;
2076:
2077: foreach (@oldkeys) {
2078: my $name=$_;
2079: my $value=$returnhash{$_};
2080: delete $returnhash{$_};
2081: $name=~s/\_/\./g;
2082: $returnhash{$name}=$value;
2083: }
2084:
2085: # ---------------------------- initialize coursedata and userdata for this user
2086: undef %courseopt;
2087: undef %useropt;
2088:
2089: my $userprefix=$uname.'_'.$udom.'_';
2090:
2091: unless ($uhome eq 'no_host') {
2092: # -------------------------------------------------------------- Get coursedata
2093: unless
2094: ((time-$courserdatas{$cid.'.last_cache'})<240) {
2095: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2096: ':resourcedata',$chome);
2097: if ($reply!~/^error\:/) {
2098: $courserdatas{$cid}=$reply;
2099: $courserdatas{$cid.'.last_cache'}=time;
2100: }
2101: }
2102: foreach (split(/\&/,$courserdatas{$cid})) {
2103: my ($name,$value)=split(/\=/,$_);
2104: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2105: &Apache::lonnet::unescape($value);
2106: }
2107: # --------------------------------------------------- Get userdata (if present)
2108: unless
2109: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2110: my $reply=
2111: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2112: if ($reply!~/^error\:/) {
2113: $userrdatas{$uname.'___'.$udom}=$reply;
2114: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2115: }
2116: }
2117: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2118: my ($name,$value)=split(/\=/,$_);
2119: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2120: &Apache::lonnet::unescape($value);
2121: }
2122: }
2123: # ----------------- now courseopt, useropt initialized for this user and course
2124: # (used by parmval)
2125:
2126: #
2127: # Load keys for this assessment only
2128: #
2129: my %thisassess=();
2130: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2131:
2132: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2133: $thisassess{$_}=1;
2134: }
2135: #
2136: # Load parameters
2137: #
2138: my %c=();
2139:
2140: if (tie(%parmhash,'GDBM_File',
2141: &getcfn($safeeval).'_parms.db',&GDBM_READER(),0640)) {
2142: my %f=&getformulas($safeeval);
2143: foreach (keys(%f)) {
2144: if ($_=~/^A/) {
2145: unless ($f{$_}=~/^[\!\~\-]/) {
2146: if ($f{$_}=~/^parameter/) {
2147: if ($thisassess{$f{$_}}) {
2148: my $val=&parmval($f{$_},$safeeval);
2149: $c{$_}=$val;
2150: $c{$f{$_}}=$val;
2151: }
2152: } else {
2153: my $key=$f{$_};
2154: my $ckey=$key;
2155: $key=~s/^stores\_/resource\./;
2156: $key=~s/\_/\./g;
2157: $c{$_}=$returnhash{$key};
2158: $c{$ckey}=$returnhash{$key};
2159: }
2160: }
2161: }
2162: }
2163: untie(%parmhash);
2164: }
2165: &setconstants($safeeval,%c);
2166: }
2167:
2168: # --------------------------------------------------------- Various form fields
2169:
2170: sub textfield {
2171: my ($title,$name,$value)=@_;
2172: return "\n<p><b>$title:</b><br>".
2173: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2174: }
2175:
2176: sub hiddenfield {
2177: my ($name,$value)=@_;
2178: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2179: }
2180:
2181: sub selectbox {
2182: my ($title,$name,$value,%options)=@_;
2183: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2184: foreach (sort keys(%options)) {
2185: $selout.='<option value="'.$_.'"';
2186: if ($_ eq $value) { $selout.=' selected'; }
2187: $selout.='>'.$options{$_}.'</option>';
2188: }
2189: return $selout.'</select>';
2190: }
2191:
2192: # =============================================== Update information in a sheet
2193: #
2194: # Add new users or assessments, etc.
2195: #
2196:
2197: sub updatesheet {
2198: my $safeeval=shift;
2199: my $stype=&gettype($safeeval);
2200: if ($stype eq 'classcalc') {
2201: return &updateclasssheet($safeeval);
2202: } else {
2203: return &updatestudentassesssheet($safeeval);
2204: }
2205: }
2206:
2207: # =================================================== Load the rows for a sheet
2208: #
2209: # Import the data for rows
2210: #
2211:
2212: sub loadrows {
2213: my ($safeeval,$r)=@_;
2214: my $stype=&gettype($safeeval);
2215: if ($stype eq 'classcalc') {
2216: &loadcourse($safeeval,$r);
2217: } elsif ($stype eq 'studentcalc') {
2218: &loadstudent($safeeval);
2219: } else {
2220: &loadassessment($safeeval);
2221: }
2222: }
2223:
2224: # ======================================================= Forced recalculation?
2225:
2226: sub checkthis {
2227: my ($keyname,$time)=@_;
2228: return ($time<$expiredates{$keyname});
2229: }
2230: sub forcedrecalc {
2231: my ($uname,$udom,$stype,$usymb)=@_;
2232: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2233: my $time=$oldsheets{$key.'.time'};
2234: if ($ENV{'form.forcerecalc'}) { return 1; }
2235: unless ($time) { return 1; }
2236: if ($stype eq 'assesscalc') {
2237: my $map=(split(/\_\_\_/,$usymb))[0];
2238: if (&checkthis('::assesscalc:',$time) ||
2239: &checkthis('::assesscalc:'.$map,$time) ||
2240: &checkthis('::assesscalc:'.$usymb,$time) ||
2241: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2242: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2243: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2244: return 1;
2245: }
2246: } else {
2247: if (&checkthis('::studentcalc:',$time) ||
2248: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2249: return 1;
2250: }
2251: }
2252: return 0;
2253: }
2254:
2255: # ============================================================== Export handler
2256: #
2257: # Non-interactive call from with program
2258: #
2259:
2260: sub exportsheet {
2261: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2262: my @exportarr=();
2263:
2264: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2265: $fn='default_'.$1;
2266: }
2267:
2268: #
2269: # Check if cached
2270: #
2271:
2272: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2273: my $found='';
2274:
2275: if ($oldsheets{$key}) {
2276: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2277: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2278: if ($name eq $fn) {
2279: $found=$value;
2280: }
2281: }
2282: }
2283:
2284: unless ($found) {
2285: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2286: if ($oldsheets{$key}) {
2287: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2288: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2289: if ($name eq $fn) {
2290: $found=$value;
2291: }
2292: }
2293: }
2294: }
2295: #
2296: # Check if still valid
2297: #
2298: if ($found) {
2299: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2300: $found='';
2301: }
2302: }
2303:
2304: if ($found) {
2305: #
2306: # Return what was cached
2307: #
2308: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2309:
2310: } else {
2311: #
2312: # Not cached
2313: #
2314:
2315: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2316: &readsheet($thissheet,$fn);
2317: &updatesheet($thissheet);
2318: &loadrows($thissheet);
2319: &calcsheet($thissheet);
2320: @exportarr=&exportdata($thissheet);
2321: #
2322: # Store now
2323: #
2324: my $cid=$ENV{'request.course.id'};
2325: my $current='';
2326: if ($stype eq 'studentcalc') {
2327: $current=&Apache::lonnet::reply('get:'.
2328: $ENV{'course.'.$cid.'.domain'}.':'.
2329: $ENV{'course.'.$cid.'.num'}.
2330: ':nohist_calculatedsheets:'.
2331: &Apache::lonnet::escape($key),
2332: $ENV{'course.'.$cid.'.home'});
2333: } else {
2334: $current=&Apache::lonnet::reply('get:'.
2335: &getudom($thissheet).':'.
2336: &getuname($thissheet).
2337: ':nohist_calculatedsheets_'.
2338: $ENV{'request.course.id'}.':'.
2339: &Apache::lonnet::escape($key),
2340: &getuhome($thissheet));
2341:
2342: }
2343: my %currentlystored=();
2344: unless ($current=~/^error\:/) {
2345: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2346: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2347: $currentlystored{$name}=$value;
2348: }
2349: }
2350: $currentlystored{$fn}=join('___;___',@exportarr);
2351:
2352: my $newstore='';
2353: foreach (keys(%currentlystored)) {
2354: if ($newstore) { $newstore.='___&___'; }
2355: $newstore.=$_.'___=___'.$currentlystored{$_};
2356: }
2357: my $now=time;
2358: if ($stype eq 'studentcalc') {
2359: &Apache::lonnet::reply('put:'.
2360: $ENV{'course.'.$cid.'.domain'}.':'.
2361: $ENV{'course.'.$cid.'.num'}.
2362: ':nohist_calculatedsheets:'.
2363: &Apache::lonnet::escape($key).'='.
2364: &Apache::lonnet::escape($newstore).'&'.
2365: &Apache::lonnet::escape($key).'.time='.$now,
2366: $ENV{'course.'.$cid.'.home'});
2367: } else {
2368: &Apache::lonnet::reply('put:'.
2369: &getudom($thissheet).':'.
2370: &getuname($thissheet).
2371: ':nohist_calculatedsheets_'.
2372: $ENV{'request.course.id'}.':'.
2373: &Apache::lonnet::escape($key).'='.
2374: &Apache::lonnet::escape($newstore).'&'.
2375: &Apache::lonnet::escape($key).'.time='.$now,
2376: &getuhome($thissheet));
2377: }
2378: }
2379: return @exportarr;
2380: }
2381: # ============================================================ Expiration Dates
2382: #
2383: # Load previously cached student spreadsheets for this course
2384: #
2385:
2386: sub expirationdates {
2387: undef %expiredates;
2388: my $cid=$ENV{'request.course.id'};
2389: my $reply=&Apache::lonnet::reply('dump:'.
2390: $ENV{'course.'.$cid.'.domain'}.':'.
2391: $ENV{'course.'.$cid.'.num'}.
2392: ':nohist_expirationdates',
2393: $ENV{'course.'.$cid.'.home'});
2394: unless ($reply=~/^error\:/) {
2395: foreach (split(/\&/,$reply)) {
2396: my ($name,$value)=split(/\=/,$_);
2397: $expiredates{&Apache::lonnet::unescape($name)}
2398: =&Apache::lonnet::unescape($value);
2399: }
2400: }
2401: }
2402:
2403: # ===================================================== Calculated sheets cache
2404: #
2405: # Load previously cached student spreadsheets for this course
2406: #
2407:
2408: sub cachedcsheets {
2409: my $cid=$ENV{'request.course.id'};
2410: my $reply=&Apache::lonnet::reply('dump:'.
2411: $ENV{'course.'.$cid.'.domain'}.':'.
2412: $ENV{'course.'.$cid.'.num'}.
2413: ':nohist_calculatedsheets',
2414: $ENV{'course.'.$cid.'.home'});
2415: unless ($reply=~/^error\:/) {
2416: foreach ( split(/\&/,$reply)) {
2417: my ($name,$value)=split(/\=/,$_);
2418: $oldsheets{&Apache::lonnet::unescape($name)}
2419: =&Apache::lonnet::unescape($value);
2420: }
2421: }
2422: }
2423:
2424: # ===================================================== Calculated sheets cache
2425: #
2426: # Load previously cached assessment spreadsheets for this student
2427: #
2428:
2429: sub cachedssheets {
2430: my ($sname,$sdom,$shome)=@_;
2431: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2432: my $cid=$ENV{'request.course.id'};
2433: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2434: ':nohist_calculatedsheets_'.
2435: $ENV{'request.course.id'},
2436: $shome);
2437: unless ($reply=~/^error\:/) {
2438: foreach ( split(/\&/,$reply)) {
2439: my ($name,$value)=split(/\=/,$_);
2440: $oldsheets{&Apache::lonnet::unescape($name)}
2441: =&Apache::lonnet::unescape($value);
2442: }
2443: }
2444: $loadedcaches{$sname.'_'.$sdom}=1;
2445: }
2446: }
2447:
2448: # ===================================================== Calculated sheets cache
2449: #
2450: # Load previously cached assessment spreadsheets for this student
2451: #
2452:
2453: # ================================================================ Main handler
2454: #
2455: # Interactive call to screen
2456: #
2457: #
2458:
2459:
2460: sub handler {
2461: my $r=shift;
2462:
2463: if ($r->header_only) {
2464: $r->content_type('text/html');
2465: $r->send_http_header;
2466: return OK;
2467: }
2468:
2469: if ($ENV{'request.role'} =~ /^st\./) {
2470: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
2471: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
2472: }
2473:
2474: # ---------------------------------------------------- Global directory configs
2475:
2476: $includedir=$r->dir_config('lonIncludes');
2477: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2478:
2479: # ----------------------------------------------------- Needs to be in a course
2480:
2481: if ($ENV{'request.course.fn'}) {
2482:
2483: # --------------------------- Get query string for limited number of parameters
2484:
2485: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2486: ['uname','udom','usymb','ufn']);
2487:
2488: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2489: $ENV{'form.ufn'}='default_'.$1;
2490: }
2491:
2492: # -------------------------------------- Interactive loading of specific sheet?
2493: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2494: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2495: }
2496: # ------------------------------------------- Nothing there? Must be login user
2497:
2498: my $aname;
2499: my $adom;
2500:
2501: unless ($ENV{'form.uname'}) {
2502: $aname=$ENV{'user.name'};
2503: $adom=$ENV{'user.domain'};
2504: } else {
2505: $aname=$ENV{'form.uname'};
2506: $adom=$ENV{'form.udom'};
2507: }
2508:
2509: # ------------------------------------------------------------------- Open page
2510:
2511: $r->content_type('text/html');
2512: $r->header_out('Cache-control','no-cache');
2513: $r->header_out('Pragma','no-cache');
2514: $r->send_http_header;
2515:
2516: # --------------------------------------------------------------- Screen output
2517:
2518: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2519: if ($ENV{'request.role'} !~ /^st\./) {
2520: $r->print(<<ENDSCRIPT);
2521: <script language="JavaScript">
2522:
2523: function celledit(cn,cf) {
2524: var cnf=prompt(cn,cf);
2525: if (cnf!=null) {
2526: document.sheet.unewfield.value=cn;
2527: document.sheet.unewformula.value=cnf;
2528: document.sheet.submit();
2529: }
2530: }
2531:
2532: function changesheet(cn) {
2533: document.sheet.unewfield.value=cn;
2534: document.sheet.unewformula.value='changesheet';
2535: document.sheet.submit();
2536: }
2537:
2538: function insertrow(cn) {
2539: document.sheet.unewfield.value='insertrow';
2540: document.sheet.unewformula.value=cn;
2541: document.sheet.submit();
2542: }
2543:
2544: </script>
2545: ENDSCRIPT
2546: }
2547: $r->print('</head><body bgcolor="#FFFFFF">'.
2548: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2549: '<h1>LON-CAPA Spreadsheet</h1>'.
2550: '<form action="'.$r->uri.'" name=sheet method=post>'.
2551: &hiddenfield('uname',$ENV{'form.uname'}).
2552: &hiddenfield('udom',$ENV{'form.udom'}).
2553: &hiddenfield('usymb',$ENV{'form.usymb'}).
2554: &hiddenfield('unewfield','').
2555: &hiddenfield('unewformula',''));
2556:
2557: # ---------------------- Make sure that this gets out, even if user hits "stop"
2558:
2559: $r->rflush();
2560:
2561: # ---------------------------------------------------------------- Full recalc?
2562:
2563:
2564: if ($ENV{'form.forcerecalc'}) {
2565: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2566: undef %spreadsheets;
2567: undef %courserdatas;
2568: undef %userrdatas;
2569: undef %defaultsheets;
2570: undef %updatedata;
2571: }
2572:
2573: # ---------------------------------------- Read new sheet or modified worksheet
2574:
2575: $r->uri=~/\/(\w+)$/;
2576:
2577: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2578:
2579: # ------------------------ If a new formula had been entered, go from work copy
2580:
2581: if ($ENV{'form.unewfield'}) {
2582: $r->print('<h2>Modified Workcopy</h2>');
2583: $ENV{'form.unewformula'}=~s/\'/\"/g;
2584: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2585: $ENV{'form.unewformula'}.'<p>');
2586: &setfilename($asheet,$ENV{'form.ufn'});
2587: &tmpread($asheet,
2588: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2589:
2590: } elsif ($ENV{'form.saveas'}) {
2591: &setfilename($asheet,$ENV{'form.ufn'});
2592: &tmpread($asheet);
2593: } else {
2594: &readsheet($asheet,$ENV{'form.ufn'});
2595: }
2596:
2597: # -------------------------------------------------- Print out user information
2598:
2599: unless (&gettype($asheet) eq 'classcalc') {
2600: $r->print('<p><b>User:</b> '.&getuname($asheet).
2601: '<br><b>Domain:</b> '.&getudom($asheet));
2602: # if (&getcsec($asheet) eq '-1') {
2603: # $r->print('<h3><font color=red>'.
2604: # 'Not a student in this course</font></h3>');
2605: # } else {
2606: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2607: # }
2608: if ($ENV{'form.usymb'}) {
2609: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2610: }
2611: }
2612:
2613: # ---------------------------------------------------------------- Course title
2614:
2615: $r->print('<h1>'.
2616: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2617: '</h1><h3>'.localtime().'</h3>');
2618:
2619: # ---------------------------------------------------- See if user can see this
2620:
2621: if ((&gettype($asheet) eq 'classcalc') ||
2622: (&getuname($asheet) ne $ENV{'user.name'}) ||
2623: (&getudom($asheet) ne $ENV{'user.domain'})) {
2624: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2625: $r->print(
2626: '<h1>Access Permission Denied</h1></form></body></html>');
2627: return OK;
2628: }
2629: }
2630:
2631: # ---------------------------------------------------------- Additional options
2632:
2633: $r->print(
2634: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2635: );
2636: if (&gettype($asheet) eq 'assesscalc') {
2637: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2638: &getuname($asheet).
2639: '&udom='.&getudom($asheet).
2640: '">Level up: Student Sheet</a></font><p>');
2641: }
2642:
2643: if ((&gettype($asheet) eq 'studentcalc') &&
2644: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2645: $r->print (
2646: '<p><font size=+2><a href="/adm/classcalc">'.
2647: 'Level up: Course Sheet</a></font><p>');
2648: }
2649:
2650:
2651: # ----------------------------------------------------------------- Save dialog
2652:
2653:
2654: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2655: my $fname=$ENV{'form.ufn'};
2656: $fname=~s/\_[^\_]+$//;
2657: if ($fname eq 'default') { $fname='course_default'; }
2658: $r->print('<input type=submit name=saveas value="Save as ...">'.
2659: '<input type=text size=20 name=newfn value="'.$fname.
2660: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2661: }
2662:
2663: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2664:
2665: # ----------------------------------------------------------------- Load dialog
2666: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2667: $r->print('<p><input type=submit name=load value="Load ...">'.
2668: '<select name="loadthissheet">'.
2669: '<option name="default">Default</option>');
2670: foreach (&othersheets($asheet,&gettype($asheet))) {
2671: $r->print('<option name="'.$_.'"');
2672: if ($ENV{'form.ufn'} eq $_) {
2673: $r->print(' selected');
2674: }
2675: $r->print('>'.$_.'</option>');
2676: }
2677: $r->print('</select><p>');
2678: if (&gettype($asheet) eq 'studentcalc') {
2679: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2680: }
2681: }
2682:
2683: # --------------------------------------------------------------- Cached sheets
2684:
2685: &expirationdates();
2686:
2687: undef %oldsheets;
2688: undef %loadedcaches;
2689:
2690: if (&gettype($asheet) eq 'classcalc') {
2691: $r->print("Loading previously calculated student sheets ...<br>\n");
2692: $r->rflush();
2693: &cachedcsheets();
2694: } elsif (&gettype($asheet) eq 'studentcalc') {
2695: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2696: $r->rflush();
2697: &cachedssheets(&getuname($asheet),&getudom($asheet),
2698: &getuhome($asheet));
2699: }
2700:
2701: # ----------------------------------------------------- Update sheet, load rows
2702:
2703: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2704: $r->rflush();
2705:
2706: &updatesheet($asheet);
2707:
2708: $r->print("Updated rows, loading row data ...<br>\n");
2709: $r->rflush();
2710:
2711: &loadrows($asheet,$r);
2712:
2713: $r->print("Loaded row data, calculating sheet ...<br>\n");
2714: $r->rflush();
2715:
2716: my $calcoutput=&calcsheet($asheet);
2717: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2718:
2719: # ---------------------------------------------------- See if something to save
2720:
2721: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2722: my $fname='';
2723: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2724: $fname=~s/\W/\_/g;
2725: if ($fname eq 'default') { $fname='course_default'; }
2726: $fname.='_'.&gettype($asheet);
2727: &setfilename($asheet,$fname);
2728: $ENV{'form.ufn'}=$fname;
2729: $r->print('<p>Saving spreadsheet: '.
2730: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2731: }
2732: }
2733:
2734: # ------------------------------------------------ Write the modified worksheet
2735:
2736: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2737:
2738: &tmpwrite($asheet);
2739:
2740: if (&gettype($asheet) eq 'studentcalc') {
2741: $r->print('<br>Show rows with empty A column: ');
2742: } else {
2743: $r->print('<br>Show empty rows: ');
2744: }
2745:
2746: $r->print(&hiddenfield('userselhidden','true').
2747: '<input type=checkbox name=showall onClick="submit()"');
2748:
2749: if ($ENV{'form.showall'}) {
2750: $r->print(' checked');
2751: } else {
2752: unless ($ENV{'form.userselhidden'}) {
2753: unless
2754: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2755: $r->print(' checked');
2756: $ENV{'form.showall'}=1;
2757: }
2758: }
2759: }
2760: $r->print('>');
2761:
2762: if (&gettype($asheet) eq 'classcalc') {
2763: $r->print(
2764: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2765: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2766: $r->print('>');
2767: }
2768:
2769: # ------------------------------------------------------------------ Insertrows
2770: $r->print(' Student Status: '.
2771: &Apache::lonhtmlcommon::StatusOptions
2772: ($ENV{'form.Status'},'sheet'));
2773:
2774: $r->print(<<ENDINSERTBUTTONS);
2775: <br>
2776: <input type='button' onClick='insertrow("top");'
2777: value='Insert Row Top'>
2778: <input type='button' onClick='insertrow("bottom");'
2779: value='Insert Row Bottom'><br>
2780: ENDINSERTBUTTONS
2781:
2782: # ------------------------------------------------------------- Print out sheet
2783:
2784: &outsheet($r,$asheet);
2785: $r->print('</form></body></html>');
2786:
2787: # ------------------------------------------------------------------------ Done
2788: } else {
2789: # ----------------------------- Not in a course, or not allowed to modify parms
2790: $ENV{'user.error.msg'}=
2791: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2792: return HTTP_NOT_ACCEPTABLE;
2793: }
2794: return OK;
2795:
2796: }
2797:
2798: 1;
2799: __END__
2800:
2801:
2802:
2803:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonspreadsheet.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface