File:
[LON-CAPA] /
loncom /
interface /
Attic /
lonspreadsheet.pm
Revision
1.96:
download - view:
text,
annotated -
select for diffs
Fri Jul 5 21:44:50 2002 UTC (22 years ago) by
www
Branches:
MAIN
CVS tags:
HEAD
share('$@') magically activated the eval error checking in a test program
(thanks Matthew!), but apparently still not here.
Test program:
use strict;
use Safe;
my $stuff=(<<'ENDSTUFF');
my $a=5;
my $b=0;
my $c=eval '$a/$b';
return 'Oops '.$@;
ENDSTUFF
my $se=new Safe;
$se->permit("entereval");
$se->share('$@');
print $se->reval($stuff)."\n";
print eval($stuff)."\n";
1: #
2: # $Id: lonspreadsheet.pm,v 1.96 2002/07/05 21:44:50 www Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # 11/11,11/15,11/27,12/04,12/05,12/06,12/07,
30: # 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30,
31: # 01/01/01,02/01,03/01,19/01,20/01,22/01,
32: # 03/05,03/08,03/10,03/12,03/13,03/15,03/17,
33: # 03/19,03/20,03/21,03/27,04/05,04/09,
34: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17,
35: # 10/16,10/17,10/20,11/05,11/28,12/27 Gerd Kortemeyer
36: # 01/14/02 Matthew
37: # 02/04/02 Matthew
38:
39: # POD required stuff:
40:
41: =head1 NAME
42:
43: lonspreadsheet
44:
45: =head1 SYNOPSIS
46:
47: Spreadsheet interface to internal LON-CAPA data
48:
49: =head1 DESCRIPTION
50:
51: Lonspreadsheet provides course coordinators the ability to manage their
52: students grades online. The students are able to view their own grades, but
53: not the grades of their peers. The spreadsheet is highly customizable,
54: offering the ability to use Perl code to manipulate data, as well as many
55: built-in functions.
56:
57:
58: =head2 Functions available to user of lonspreadsheet
59:
60: =over 4
61:
62: =cut
63:
64: package Apache::lonspreadsheet;
65:
66: use strict;
67: use Safe;
68: use Safe::Hole;
69: use Opcode;
70: use Apache::lonnet;
71: use Apache::Constants qw(:common :http);
72: use GDBM_File;
73: use HTML::TokeParser;
74:
75: #
76: # Caches for previously calculated spreadsheets
77: #
78:
79: my %oldsheets;
80: my %loadedcaches;
81: my %expiredates;
82:
83: #
84: # Cache for stores of an individual user
85: #
86:
87: my $cachedassess;
88: my %cachedstores;
89:
90: #
91: # These cache hashes need to be independent of user, resource and course
92: # (user and course can/should be in the keys)
93: #
94:
95: my %spreadsheets;
96: my %courserdatas;
97: my %userrdatas;
98: my %defaultsheets;
99: my %updatedata;
100:
101: #
102: # These global hashes are dependent on user, course and resource,
103: # and need to be initialized every time when a sheet is calculated
104: #
105: my %courseopt;
106: my %useropt;
107: my %parmhash;
108:
109: #
110: # Some hashes for stats on timing and performance
111: #
112:
113: my %starttimes;
114: my %usedtimes;
115: my %numbertimes;
116:
117: # Stuff that only the screen handler can know
118:
119: my $includedir;
120: my $tmpdir;
121:
122: # =============================================================================
123: # ===================================== Implements an instance of a spreadsheet
124:
125: sub initsheet {
126: my $safeeval = new Safe(shift);
127: my $safehole = new Safe::Hole;
128: $safeeval->permit("entereval");
129: $safeeval->permit(":base_math");
130: $safeeval->permit("sort");
131: $safeeval->deny(":base_io");
132: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
133: $safeeval->share('$@');
134: my $code=<<'ENDDEFS';
135: # ---------------------------------------------------- Inside of the safe space
136:
137: #
138: # f: formulas
139: # t: intermediate format (variable references expanded)
140: # v: output values
141: # c: preloaded constants (A-column)
142: # rl: row label
143: # os: other spreadsheets (for student spreadsheet only)
144:
145: undef %v;
146: undef %t;
147: undef %f;
148: undef %c;
149: undef %rl;
150: undef @os;
151:
152: $maxrow=0;
153: $sheettype='';
154:
155: # filename/reference of the sheet
156:
157: $filename='';
158:
159: # user data
160: $uname='';
161: $uhome='';
162: $udom='';
163:
164: # course data
165:
166: $csec='';
167: $chome='';
168: $cnum='';
169: $cdom='';
170: $cid='';
171: $cfn='';
172:
173: # symb
174:
175: $usymb='';
176:
177: # error messages
178:
179: $errormsg='';
180:
181: sub mask {
182: my ($lower,$upper)=@_;
183:
184: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
185: my $la=$1;
186: my $ld=$2;
187:
188: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
189: my $ua=$1;
190: my $ud=$2;
191: my $alpha='';
192: my $num='';
193:
194: if (($la eq '*') || ($ua eq '*')) {
195: $alpha='[A-Za-z]';
196: } else {
197: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
198: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
199: $alpha='['.$la.'-'.$ua.']';
200: } else {
201: $alpha='['.$la.'-Za-'.$ua.']';
202: }
203: }
204:
205: if (($ld eq '*') || ($ud eq '*')) {
206: $num='\d+';
207: } else {
208: if (length($ld)!=length($ud)) {
209: $num.='(';
210: foreach ($ld=~m/\d/g) {
211: $num.='['.$_.'-9]';
212: }
213: if (length($ud)-length($ld)>1) {
214: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
215: }
216: $num.='|';
217: foreach ($ud=~m/\d/g) {
218: $num.='[0-'.$_.']';
219: }
220: $num.=')';
221: } else {
222: my @lda=($ld=~m/\d/g);
223: my @uda=($ud=~m/\d/g);
224: my $i; $j=0; $notdone=1;
225: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
226: if ($lda[$i]==$uda[$i]) {
227: $num.=$lda[$i];
228: $j=$i;
229: } else {
230: $notdone=0;
231: }
232: }
233: if ($j<$#lda-1) {
234: $num.='('.$lda[$j+1];
235: for ($i=$j+2;$i<=$#lda;$i++) {
236: $num.='['.$lda[$i].'-9]';
237: }
238: if ($uda[$j+1]-$lda[$j+1]>1) {
239: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
240: ($#lda-$j-1).'}';
241: }
242: $num.='|'.$uda[$j+1];
243: for ($i=$j+2;$i<=$#uda;$i++) {
244: $num.='[0-'.$uda[$i].']';
245: }
246: $num.=')';
247: } else {
248: if ($lda[$#lda]!=$uda[$#uda]) {
249: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
250: }
251: }
252: }
253: }
254: return '^'.$alpha.$num."\$";
255: }
256:
257: #-------------------------------------------------------
258:
259: =item UWCALC(hashname,modules,units,date)
260:
261: returns the proportion of the module
262: weights not previously completed by the student.
263:
264: =over 4
265:
266: =item hashname
267:
268: name of the hash the module dates have been inserted into
269:
270: =item modules
271:
272: reference to a cell which contains a comma deliminated list of modules
273: covered by the assignment.
274:
275: =item units
276:
277: reference to a cell which contains a comma deliminated list of module
278: weights with respect to the assignment
279:
280: =item date
281:
282: reference to a cell which contains the date the assignment was completed.
283:
284: =back
285:
286: =cut
287:
288: #-------------------------------------------------------
289: sub UWCALC {
290: my ($hashname,$modules,$units,$date) = @_;
291: my @Modules = split(/,/,$modules);
292: my @Units = split(/,/,$units);
293: my $total_weight;
294: foreach (@Units) {
295: $total_weight += $_;
296: }
297: my $usum=0;
298: for (my $i=0; $i<=$#Modules; $i++) {
299: if (&HASH($hashname,$Modules[$i]) eq $date) {
300: $usum += $Units[$i];
301: }
302: }
303: return $usum/$total_weight;
304: }
305:
306: #-------------------------------------------------------
307:
308: =item CDLSUM(list)
309:
310: returns the sum of the elements in a cell which contains
311: a Comma Deliminate List of numerical values.
312: 'list' is a reference to a cell which contains a comma deliminated list.
313:
314: =cut
315:
316: #-------------------------------------------------------
317: sub CDLSUM {
318: my ($list)=@_;
319: my $sum;
320: foreach (split/,/,$list) {
321: $sum += $_;
322: }
323: return $sum;
324: }
325:
326: #-------------------------------------------------------
327:
328: =item CDLITEM(list,index)
329:
330: returns the item at 'index' in a Comma Deliminated List.
331:
332: =over 4
333:
334: =item list
335:
336: reference to a cell which contains a comma deliminated list.
337:
338: =item index
339:
340: the Perl index of the item requested (first element in list has
341: an index of 0)
342:
343: =back
344:
345: =cut
346:
347: #-------------------------------------------------------
348: sub CDLITEM {
349: my ($list,$index)=@_;
350: my @Temp = split/,/,$list;
351: return $Temp[$index];
352: }
353:
354: #-------------------------------------------------------
355:
356: =item CDLHASH(name,key,value)
357:
358: loads a comma deliminated list of keys into
359: the hash 'name', all with a value of 'value'.
360:
361: =over 4
362:
363: =item name
364:
365: name of the hash.
366:
367: =item key
368:
369: (a pointer to) a comma deliminated list of keys.
370:
371: =item value
372:
373: a single value to be entered for each key.
374:
375: =back
376:
377: =cut
378:
379: #-------------------------------------------------------
380: sub CDLHASH {
381: my ($name,$key,$value)=@_;
382: my @Keys;
383: my @Values;
384: # Check to see if we have multiple $key values
385: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
386: my $keymask = &mask($key);
387: # Assume the keys are addresses
388: my @Temp = grep /$keymask/,keys(%v);
389: @Keys = $v{@Temp};
390: } else {
391: $Keys[0]= $key;
392: }
393: my @Temp;
394: foreach $key (@Keys) {
395: @Temp = (@Temp, split/,/,$key);
396: }
397: @Keys = @Temp;
398: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
399: my $valmask = &mask($value);
400: my @Temp = grep /$valmask/,keys(%v);
401: @Values =$v{@Temp};
402: } else {
403: $Values[0]= $value;
404: }
405: $value = $Values[0];
406: # Add values to hash
407: for (my $i = 0; $i<=$#Keys; $i++) {
408: my $key = $Keys[$i];
409: if (! exists ($hashes{$name}->{$key})) {
410: $hashes{$name}->{$key}->[0]=$value;
411: } else {
412: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
413: $hashes{$name}->{$key} = \@Temp;
414: }
415: }
416: return "hash '$name' updated";
417: }
418:
419: #-------------------------------------------------------
420:
421: =item GETHASH(name,key,index)
422:
423: returns the element in hash 'name'
424: reference by the key 'key', at index 'index' in the values list.
425:
426: =cut
427:
428: #-------------------------------------------------------
429: sub GETHASH {
430: my ($name,$key,$index)=@_;
431: if (! defined($index)) {
432: $index = 0;
433: }
434: if ($key =~ /^[A-z]\d+$/) {
435: $key = $v{$key};
436: }
437: return $hashes{$name}->{$key}->[$index];
438: }
439:
440: #-------------------------------------------------------
441:
442: =item CLEARHASH(name)
443:
444: clears all the values from the hash 'name'
445:
446: =item CLEARHASH(name,key)
447:
448: clears all the values from the hash 'name' associated with the given key.
449:
450: =cut
451:
452: #-------------------------------------------------------
453: sub CLEARHASH {
454: my ($name,$key)=@_;
455: if (defined($key)) {
456: if (exists($hashes{$name}->{$key})) {
457: $hashes{$name}->{$key}=undef;
458: return "hash '$name' key '$key' cleared";
459: }
460: } else {
461: if (exists($hashes{$name})) {
462: $hashes{$name}=undef;
463: return "hash '$name' cleared";
464: }
465: }
466: return "Error in clearing hash";
467: }
468:
469: #-------------------------------------------------------
470:
471: =item HASH(name,key,value)
472:
473: loads values into an internal hash. If a key
474: already has a value associated with it, the values are sorted numerically.
475:
476: =item HASH(name,key)
477:
478: returns the 0th value in the hash 'name' associated with 'key'.
479:
480: =cut
481:
482: #-------------------------------------------------------
483: sub HASH {
484: my ($name,$key,$value)=@_;
485: my @Keys;
486: undef @Keys;
487: my @Values;
488: # Check to see if we have multiple $key values
489: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
490: my $keymask = &mask($key);
491: # Assume the keys are addresses
492: my @Temp = grep /$keymask/,keys(%v);
493: @Keys = $v{@Temp};
494: } else {
495: $Keys[0]= $key;
496: }
497: # If $value is empty, return the first value associated
498: # with the first key.
499: if (! $value) {
500: return $hashes{$name}->{$Keys[0]}->[0];
501: }
502: # Check to see if we have multiple $value(s)
503: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
504: my $valmask = &mask($value);
505: my @Temp = grep /$valmask/,keys(%v);
506: @Values =$v{@Temp};
507: } else {
508: $Values[0]= $value;
509: }
510: # Add values to hash
511: for (my $i = 0; $i<=$#Keys; $i++) {
512: my $key = $Keys[$i];
513: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
514: if (! exists ($hashes{$name}->{$key})) {
515: $hashes{$name}->{$key}->[0]=$value;
516: } else {
517: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
518: $hashes{$name}->{$key} = \@Temp;
519: }
520: }
521: return $Values[-1];
522: }
523:
524: #-------------------------------------------------------
525:
526: =item NUM(range)
527:
528: returns the number of items in the range.
529:
530: =cut
531:
532: #-------------------------------------------------------
533: sub NUM {
534: my $mask=mask(@_);
535: my $num= $#{@{grep(/$mask/,keys(%v))}}+1;
536: return $num;
537: }
538:
539: sub BIN {
540: my ($low,$high,$lower,$upper)=@_;
541: my $mask=mask($lower,$upper);
542: my $num=0;
543: foreach (grep /$mask/,keys(%v)) {
544: if (($v{$_}>=$low) && ($v{$_}<=$high)) {
545: $num++;
546: }
547: }
548: return $num;
549: }
550:
551:
552: #-------------------------------------------------------
553:
554: =item SUM(range)
555:
556: returns the sum of items in the range.
557:
558: =cut
559:
560: #-------------------------------------------------------
561: sub SUM {
562: my $mask=mask(@_);
563: my $sum=0;
564: foreach (grep /$mask/,keys(%v)) {
565: $sum+=$v{$_};
566: }
567: return $sum;
568: }
569:
570: #-------------------------------------------------------
571:
572: =item MEAN(range)
573:
574: compute the average of the items in the range.
575:
576: =cut
577:
578: #-------------------------------------------------------
579: sub MEAN {
580: my $mask=mask(@_);
581: my $sum=0; my $num=0;
582: foreach (grep /$mask/,keys(%v)) {
583: $sum+=$v{$_};
584: $num++;
585: }
586: if ($num) {
587: return $sum/$num;
588: } else {
589: return undef;
590: }
591: }
592:
593: #-------------------------------------------------------
594:
595: =item STDDEV(range)
596:
597: compute the standard deviation of the items in the range.
598:
599: =cut
600:
601: #-------------------------------------------------------
602: sub STDDEV {
603: my $mask=mask(@_);
604: my $sum=0; my $num=0;
605: foreach (grep /$mask/,keys(%v)) {
606: $sum+=$v{$_};
607: $num++;
608: }
609: unless ($num>1) { return undef; }
610: my $mean=$sum/$num;
611: $sum=0;
612: foreach (grep /$mask/,keys(%v)) {
613: $sum+=($v{$_}-$mean)**2;
614: }
615: return sqrt($sum/($num-1));
616: }
617:
618: #-------------------------------------------------------
619:
620: =item PROD(range)
621:
622: compute the product of the items in the range.
623:
624: =cut
625:
626: #-------------------------------------------------------
627: sub PROD {
628: my $mask=mask(@_);
629: my $prod=1;
630: foreach (grep /$mask/,keys(%v)) {
631: $prod*=$v{$_};
632: }
633: return $prod;
634: }
635:
636: #-------------------------------------------------------
637:
638: =item MAX(range)
639:
640: compute the maximum of the items in the range.
641:
642: =cut
643:
644: #-------------------------------------------------------
645: sub MAX {
646: my $mask=mask(@_);
647: my $max='-';
648: foreach (grep /$mask/,keys(%v)) {
649: unless ($max) { $max=$v{$_}; }
650: if (($v{$_}>$max) || ($max eq '-')) { $max=$v{$_}; }
651: }
652: return $max;
653: }
654:
655: #-------------------------------------------------------
656:
657: =item MIN(range)
658:
659: compute the minimum of the items in the range.
660:
661: =cut
662:
663: #-------------------------------------------------------
664: sub MIN {
665: my $mask=mask(@_);
666: my $min='-';
667: foreach (grep /$mask/,keys(%v)) {
668: unless ($max) { $max=$v{$_}; }
669: if (($v{$_}<$min) || ($min eq '-')) { $min=$v{$_}; }
670: }
671: return $min;
672: }
673:
674: #-------------------------------------------------------
675:
676: =item SUMMAX(num,lower,upper)
677:
678: compute the sum of the largest 'num' items in the range from
679: 'lower' to 'upper'
680:
681: =cut
682:
683: #-------------------------------------------------------
684: sub SUMMAX {
685: my ($num,$lower,$upper)=@_;
686: my $mask=mask($lower,$upper);
687: my @inside=();
688: foreach (grep /$mask/,keys(%v)) {
689: push (@inside,$v{$_});
690: }
691: @inside=sort(@inside);
692: my $sum=0; my $i;
693: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
694: $sum+=$inside[$i];
695: }
696: return $sum;
697: }
698:
699: #-------------------------------------------------------
700:
701: =item SUMMIN(num,lower,upper)
702:
703: compute the sum of the smallest 'num' items in the range from
704: 'lower' to 'upper'
705:
706: =cut
707:
708: #-------------------------------------------------------
709: sub SUMMIN {
710: my ($num,$lower,$upper)=@_;
711: my $mask=mask($lower,$upper);
712: my @inside=();
713: foreach (grep /$mask/,keys(%v)) {
714: $inside[$#inside+1]=$v{$_};
715: }
716: @inside=sort(@inside);
717: my $sum=0; my $i;
718: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
719: $sum+=$inside[$i];
720: }
721: return $sum;
722: }
723:
724: sub expandnamed {
725: my $expression=shift;
726: if ($expression=~/^\&/) {
727: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
728: my @vars=split(/\W+/,$formula);
729: my %values=();
730: undef %values;
731: foreach ( @vars ) {
732: my $varname=$_;
733: if ($varname=~/\D/) {
734: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
735: $varname=~s/$var/\(\\w\+\)/g;
736: foreach (keys(%c)) {
737: if ($_=~/$varname/) {
738: $values{$1}=1;
739: }
740: }
741: }
742: }
743: if ($func eq 'EXPANDSUM') {
744: my $result='';
745: foreach (keys(%values)) {
746: my $thissum=$formula;
747: $thissum=~s/$var/$_/g;
748: $result.=$thissum.'+';
749: }
750: $result=~s/\+$//;
751: return $result;
752: } else {
753: return 0;
754: }
755: } else {
756: # it is not a function, so it is a parameter name
757: # We should do the following:
758: # 1. Take the list of parameter names
759: # 2. look through the list for ones that match the parameter we want
760: # 3. If there are no collisions, return the one that matches
761: # 4. If there is a collision, return 'bad parameter name error'
762: my $returnvalue = '';
763: my @matches = ();
764: $#matches = -1;
765: study $expression;
766: foreach $parameter (keys(%c)) {
767: push @matches,$parameter if ($parameter =~ /$expression/);
768: }
769: if ($#matches == 0) {
770: $returnvalue = '$c{\''.$matches[0].'\'}';
771: } else {
772: $returnvalue = "'bad parameter name : $expression'";
773: }
774: return $returnvalue;
775: }
776: }
777:
778: sub sett {
779: %t=();
780: my $pattern='';
781: if ($sheettype eq 'assesscalc') {
782: $pattern='A';
783: } else {
784: $pattern='[A-Z]';
785: }
786: foreach (keys(%f)) {
787: if ($_=~/template\_(\w)/) {
788: my $col=$1;
789: unless ($col=~/^$pattern/) {
790: foreach (keys(%f)) {
791: if ($_=~/A(\d+)/) {
792: my $trow=$1;
793: if ($trow) {
794: # Get the name of this cell
795: my $lb=$col.$trow;
796: # Grab the template declaration
797: $t{$lb}=$f{'template_'.$col};
798: # Replace '#' with the row number
799: $t{$lb}=~s/\#/$trow/g;
800: # Replace '....' with ','
801: $t{$lb}=~s/\.\.+/\,/g;
802: # Replace 'A0' with the value from 'A0'
803: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
804: # Replace parameters
805: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
806: }
807: }
808: }
809: }
810: }
811: }
812: foreach (keys(%f)) {
813: if (($f{$_}) && ($_!~/template\_/)) {
814: my $matches=($_=~/^$pattern(\d+)/);
815: if (($matches) && ($1)) {
816: unless ($f{$_}=~/^\!/) {
817: $t{$_}=$c{$_};
818: }
819: } else {
820: $t{$_}=$f{$_};
821: $t{$_}=~s/\.\.+/\,/g;
822: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
823: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
824: }
825: }
826: }
827: # For some reason 'A0' gets special treatment... This seems superfluous
828: # but I imagine it is here for a reason.
829: $t{'A0'}=$f{'A0'};
830: $t{'A0'}=~s/\.\.+/\,/g;
831: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
832: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
833: }
834:
835: sub calc {
836: undef %v;
837: &sett();
838: my $notfinished=1;
839: my $depth=0;
840: while ($notfinished) {
841: $notfinished=0;
842: foreach (keys(%t)) {
843: my $old=$v{$_};
844: $v{$_}=eval $t{$_};
845: if ($@) {
846: undef %v;
847: return $_.': '.$@;
848: }
849: if ($v{$_} ne $old) { $notfinished=1; }
850: }
851: $depth++;
852: if ($depth>100) {
853: undef %v;
854: return 'Maximum calculation depth exceeded';
855: }
856: }
857: return '';
858: }
859:
860: sub templaterow {
861: my @cols=();
862: $cols[0]='<b><font size=+1>Template</font></b>';
863: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
864: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
865: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
866: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
867: my $fm=$f{'template_'.$_};
868: $fm=~s/[\'\"]/\&\#34;/g;
869: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
870: }
871: return @cols;
872: }
873:
874: sub outrowassess {
875: my $n=shift;
876: my @cols=();
877: if ($n) {
878: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
879: if ($rl{$usy}) {
880: $cols[0]=$rl{$usy}.'<br>'.
881: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
882: ')"><option name="default">Default</option>';
883: } else { $cols[0]=''; }
884: foreach (@os) {
885: $cols[0].='<option name="'.$_.'"';
886: if ($ufn eq $_) {
887: $cols[0].=' selected';
888: }
889: $cols[0].='>'.$_.'</option>';
890: }
891: $cols[0].='</select>';
892: } else {
893: $cols[0]='<b><font size=+1>Export</font></b>';
894: }
895: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
896: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
897: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
898: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
899: my $fm=$f{$_.$n};
900: $fm=~s/[\'\"]/\&\#34;/g;
901: push(@cols,"'$_$n','$fm'".'___eq___'.$v{$_.$n});
902: }
903: return @cols;
904: }
905:
906: sub outrow {
907: my $n=shift;
908: my @cols=();
909: if ($n) {
910: $cols[0]=$rl{$f{'A'.$n}};
911: } else {
912: $cols[0]='<b><font size=+1>Export</font></b>';
913: }
914: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
915: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
916: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
917: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
918: my $fm=$f{$_.$n};
919: $fm=~s/[\'\"]/\&\#34;/g;
920: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
921: }
922: return @cols;
923: }
924:
925: sub exportrowa {
926: my @exportarray=();
927: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
928: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
929: $exportarray[$#exportarray+1]=$v{$_.'0'};
930: }
931: return @exportarray;
932: }
933:
934: # ------------------------------------------- End of "Inside of the safe space"
935: ENDDEFS
936: $safeeval->reval($code);
937: return $safeeval;
938: }
939:
940: # ------------------------------------------------ Add or change formula values
941:
942: sub setformulas {
943: my ($safeeval,%f)=@_;
944: %{$safeeval->varglob('f')}=%f;
945: }
946:
947: # ------------------------------------------------ Add or change formula values
948:
949: sub setconstants {
950: my ($safeeval,%c)=@_;
951: %{$safeeval->varglob('c')}=%c;
952: }
953:
954: # --------------------------------------------- Set names of other spreadsheets
955:
956: sub setothersheets {
957: my ($safeeval,@os)=@_;
958: @{$safeeval->varglob('os')}=@os;
959: }
960:
961: # ------------------------------------------------ Add or change formula values
962:
963: sub setrowlabels {
964: my ($safeeval,%rl)=@_;
965: %{$safeeval->varglob('rl')}=%rl;
966: }
967:
968: # ------------------------------------------------------- Calculate spreadsheet
969:
970: sub calcsheet {
971: my $safeeval=shift;
972: return $safeeval->reval('&calc();');
973: }
974:
975: # ------------------------------------------------------------------ Get values
976:
977: sub getvalues {
978: my $safeeval=shift;
979: return $safeeval->reval('%v');
980: }
981:
982: # ---------------------------------------------------------------- Get formulas
983:
984: sub getformulas {
985: my $safeeval=shift;
986: return %{$safeeval->varglob('f')};
987: }
988:
989: # -------------------------------------------------------------------- Get type
990:
991: sub gettype {
992: my $safeeval=shift;
993: return $safeeval->reval('$sheettype');
994: }
995:
996: # ------------------------------------------------------------------ Set maxrow
997:
998: sub setmaxrow {
999: my ($safeeval,$row)=@_;
1000: $safeeval->reval('$maxrow='.$row.';');
1001: }
1002:
1003: # ------------------------------------------------------------------ Get maxrow
1004:
1005: sub getmaxrow {
1006: my $safeeval=shift;
1007: return $safeeval->reval('$maxrow');
1008: }
1009:
1010: # ---------------------------------------------------------------- Set filename
1011:
1012: sub setfilename {
1013: my ($safeeval,$fn)=@_;
1014: $safeeval->reval('$filename="'.$fn.'";');
1015: }
1016:
1017: # ---------------------------------------------------------------- Get filename
1018:
1019: sub getfilename {
1020: my $safeeval=shift;
1021: return $safeeval->reval('$filename');
1022: }
1023:
1024: # --------------------------------------------------------------- Get course ID
1025:
1026: sub getcid {
1027: my $safeeval=shift;
1028: return $safeeval->reval('$cid');
1029: }
1030:
1031: # --------------------------------------------------------- Get course filename
1032:
1033: sub getcfn {
1034: my $safeeval=shift;
1035: return $safeeval->reval('$cfn');
1036: }
1037:
1038: # ----------------------------------------------------------- Get course number
1039:
1040: sub getcnum {
1041: my $safeeval=shift;
1042: return $safeeval->reval('$cnum');
1043: }
1044:
1045: # ------------------------------------------------------------- Get course home
1046:
1047: sub getchome {
1048: my $safeeval=shift;
1049: return $safeeval->reval('$chome');
1050: }
1051:
1052: # ----------------------------------------------------------- Get course domain
1053:
1054: sub getcdom {
1055: my $safeeval=shift;
1056: return $safeeval->reval('$cdom');
1057: }
1058:
1059: # ---------------------------------------------------------- Get course section
1060:
1061: sub getcsec {
1062: my $safeeval=shift;
1063: return $safeeval->reval('$csec');
1064: }
1065:
1066: # --------------------------------------------------------------- Get user name
1067:
1068: sub getuname {
1069: my $safeeval=shift;
1070: return $safeeval->reval('$uname');
1071: }
1072:
1073: # ------------------------------------------------------------- Get user domain
1074:
1075: sub getudom {
1076: my $safeeval=shift;
1077: return $safeeval->reval('$udom');
1078: }
1079:
1080: # --------------------------------------------------------------- Get user home
1081:
1082: sub getuhome {
1083: my $safeeval=shift;
1084: return $safeeval->reval('$uhome');
1085: }
1086:
1087: # -------------------------------------------------------------------- Get symb
1088:
1089: sub getusymb {
1090: my $safeeval=shift;
1091: return $safeeval->reval('$usymb');
1092: }
1093:
1094: # ------------------------------------------------------------- Export of A-row
1095:
1096: sub exportdata {
1097: my $safeeval=shift;
1098: return $safeeval->reval('&exportrowa()');
1099: }
1100:
1101:
1102: # ========================================================== End of Spreadsheet
1103: # =============================================================================
1104:
1105: #
1106: # Procedures for screen output
1107: #
1108: # --------------------------------------------- Produce output row n from sheet
1109:
1110: sub rown {
1111: my ($safeeval,$n)=@_;
1112: my $defaultbg;
1113: my $rowdata='';
1114: my $dataflag=0;
1115: unless ($n eq '-') {
1116: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1117: } else {
1118: $defaultbg='#E0FF';
1119: }
1120: unless ($ENV{'form.showcsv'}) {
1121: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1122: } else {
1123: $rowdata.="\n".'"'.$n.'"';
1124: }
1125: my $showf=0;
1126: my $proc;
1127: my $maxred;
1128: my $sheettype=&gettype($safeeval);
1129: if ($sheettype eq 'studentcalc') {
1130: $proc='&outrowassess';
1131: $maxred=26;
1132: } else {
1133: $proc='&outrow';
1134: }
1135: if ($sheettype eq 'assesscalc') {
1136: $maxred=1;
1137: } else {
1138: $maxred=26;
1139: }
1140: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1141: foreach ($safeeval->reval($proc.'('.$n.')')) {
1142: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1143: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1144: if ((($vl ne '') || ($vl eq '0')) &&
1145: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1146: if ($showf==0) { $vl=$_; }
1147: unless ($ENV{'form.showcsv'}) {
1148: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1149: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1150: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1151: if ($vl eq '') {
1152: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1153: }
1154: $rowdata.=
1155: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
1156: '</a></td>';
1157: } else {
1158: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1159: }
1160: } else {
1161: $rowdata.=',"'.$vl.'"';
1162: }
1163: $showf++;
1164: } # End of foreach($safeval...)
1165: if ($ENV{'form.showall'} || ($dataflag)) {
1166: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1167: } else {
1168: return '';
1169: }
1170: }
1171:
1172: # ------------------------------------------------------------- Print out sheet
1173:
1174: sub outsheet {
1175: my ($r,$safeeval)=@_;
1176: my $maxred;
1177: my $realm;
1178: if (&gettype($safeeval) eq 'assesscalc') {
1179: $maxred=1;
1180: $realm='Assessment';
1181: } elsif (&gettype($safeeval) eq 'studentcalc') {
1182: $maxred=26;
1183: $realm='User';
1184: } else {
1185: $maxred=26;
1186: $realm='Course';
1187: }
1188: my $maxyellow=52-$maxred;
1189: my $tabledata;
1190: unless ($ENV{'form.showcsv'}) {
1191: $tabledata=
1192: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1193: $realm.'</font></th>'.
1194: '<td bgcolor=#FFDDDD colspan='.$maxred.
1195: '><b><font size=+1>Import</font></b></td>'.
1196: '<td colspan='.$maxyellow.
1197: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1198: my $showf=0;
1199: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1200: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1201: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1202: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1203: $showf++;
1204: if ($showf<=$maxred) {
1205: $tabledata.='<td bgcolor="#FFDDDD">';
1206: } else {
1207: $tabledata.='<td>';
1208: }
1209: $tabledata.="<b><font size=+1>$_</font></b></td>";
1210: }
1211: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1212: } else { $tabledata='<pre>'; }
1213:
1214: $r->print($tabledata);
1215:
1216: my $row;
1217: my $maxrow=&getmaxrow($safeeval);
1218:
1219: my @sortby=();
1220: my @sortidx=();
1221: for ($row=1;$row<=$maxrow;$row++) {
1222: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1223: $sortidx[$row-1]=$row-1;
1224: }
1225: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1226:
1227: my $what='Student';
1228: if (&gettype($safeeval) eq 'assesscalc') {
1229: $what='Item';
1230: } elsif (&gettype($safeeval) eq 'studentcalc') {
1231: $what='Assessment';
1232: }
1233:
1234: my $n=0;
1235: for ($row=0;$row<$maxrow;$row++) {
1236: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1237: if ($thisrow) {
1238: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1239: $r->print("</table>\n<br>\n");
1240: $r->rflush();
1241: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1242: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1245: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1246: $r->print('<td>'.$_.'</td>');
1247: }
1248: $r->print('</tr>');
1249: }
1250: $n++;
1251: $r->print($thisrow);
1252: }
1253: }
1254: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1255: }
1256:
1257: #
1258: # ----------------------------------------------- Read list of available sheets
1259: #
1260: sub othersheets {
1261: my ($safeeval,$stype)=@_;
1262: #
1263: my $cnum=&getcnum($safeeval);
1264: my $cdom=&getcdom($safeeval);
1265: my $chome=&getchome($safeeval);
1266: #
1267: my @alternatives=();
1268: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1269: my ($tmp) = keys(%results);
1270: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1271: @alternatives = sort (keys(%results));
1272: }
1273: return @alternatives;
1274: }
1275:
1276:
1277: #
1278: # -------------------------------------- Parse a spreadsheet
1279: #
1280: sub parse_sheet {
1281: # $sheetxml is a scalar reference or a scalar
1282: my ($sheetxml) = @_;
1283: if (! ref($sheetxml)) {
1284: my $tmp = $sheetxml;
1285: $sheetxml = \$tmp;
1286: }
1287: my %f;
1288: my $parser=HTML::TokeParser->new($sheetxml);
1289: my $token;
1290: while ($token=$parser->get_token) {
1291: if ($token->[0] eq 'S') {
1292: if ($token->[1] eq 'field') {
1293: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1294: $parser->get_text('/field');
1295: }
1296: if ($token->[1] eq 'template') {
1297: $f{'template_'.$token->[2]->{'col'}}=
1298: $parser->get_text('/template');
1299: }
1300: }
1301: }
1302: return \%f;
1303: }
1304:
1305: #
1306: # -------------------------------------- Read spreadsheet formulas for a course
1307: #
1308:
1309: sub readsheet {
1310: my ($safeeval,$fn)=@_;
1311: my $stype=&gettype($safeeval);
1312: my $cnum=&getcnum($safeeval);
1313: my $cdom=&getcdom($safeeval);
1314: my $chome=&getchome($safeeval);
1315:
1316: if (! defined($fn)) {
1317: # There is no filename. Look for defaults in course and global, cache
1318: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1319: my %tmphash = &Apache::lonnet::get('environment',
1320: ['spreadsheet_default_'.$stype],
1321: $cdom,$cnum);
1322: my ($tmp) = keys(%tmphash);
1323: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1324: $fn = 'default_'.$stype;
1325: } else {
1326: $fn = $tmphash{'spreadsheet_default_'.$stype};
1327: }
1328: unless (($fn) && ($fn!~/^error\:/)) {
1329: $fn='default_'.$stype;
1330: }
1331: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1332: }
1333: }
1334:
1335: # ---------------------------------------------------------- fn now has a value
1336:
1337: &setfilename($safeeval,$fn);
1338:
1339: # ------------------------------------------------------ see if sheet is cached
1340: my $fstring='';
1341: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1342: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1343: } else {
1344:
1345: # ---------------------------------------------------- Not cached, need to read
1346:
1347: my %f=();
1348:
1349: if ($fn=~/^default\_/) {
1350: my $sheetxml='';
1351: my $fh;
1352: my $dfn=$fn;
1353: $dfn=~s/\_/\./g;
1354: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1355: $sheetxml=join('',<$fh>);
1356: } else {
1357: $sheetxml='<field row="0" col="A">"Error"</field>';
1358: }
1359: %f=%{&parse_sheet(\$sheetxml)};
1360: } elsif($fn=~/\/*\.spreadsheet$/) {
1361: my $sheetxml=&Apache::lonnet::getfile
1362: (&Apache::lonnet::filelocation('',$fn));
1363: if ($sheetxml == -1) {
1364: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1365: .$fn.'"</field>';
1366: }
1367: %f=%{&parse_sheet(\$sheetxml)};
1368: } else {
1369: my $sheet='';
1370: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1371: my ($tmp) = keys(%tmphash);
1372: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1373: foreach (keys(%tmphash)) {
1374: $f{$_}=$tmphash{$_};
1375: }
1376: }
1377: }
1378: # --------------------------------------------------------------- Cache and set
1379: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1380: &setformulas($safeeval,%f);
1381: }
1382: }
1383:
1384: # -------------------------------------------------------- Make new spreadsheet
1385:
1386: sub makenewsheet {
1387: my ($uname,$udom,$stype,$usymb)=@_;
1388: my $safeeval=initsheet($stype);
1389: $safeeval->reval(
1390: '$uname="'.$uname.
1391: '";$udom="'.$udom.
1392: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1393: '";$sheettype="'.$stype.
1394: '";$usymb="'.$usymb.
1395: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1396: $ENV{'request.course.id'}).
1397: '";$cid="'.$ENV{'request.course.id'}.
1398: '";$cfn="'.$ENV{'request.course.fn'}.
1399: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1400: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1401: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1402: return $safeeval;
1403: }
1404:
1405: # ------------------------------------------------------------ Save spreadsheet
1406:
1407: sub writesheet {
1408: my ($safeeval,$makedef)=@_;
1409: my $cid=&getcid($safeeval);
1410: if (&Apache::lonnet::allowed('opa',$cid)) {
1411: my %f=&getformulas($safeeval);
1412: my $stype=&gettype($safeeval);
1413: my $cnum=&getcnum($safeeval);
1414: my $cdom=&getcdom($safeeval);
1415: my $chome=&getchome($safeeval);
1416: my $fn=&getfilename($safeeval);
1417:
1418: # ------------------------------------------------------------- Cache new sheet
1419: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1420: # ----------------------------------------------------------------- Write sheet
1421: my $sheetdata='';
1422: foreach (keys(%f)) {
1423: unless ($f{$_} eq 'import') {
1424: $sheetdata.=&Apache::lonnet::escape($_).'='.
1425: &Apache::lonnet::escape($f{$_}).'&';
1426: }
1427: }
1428: $sheetdata=~s/\&$//;
1429: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1430: $sheetdata,$chome);
1431: if ($reply eq 'ok') {
1432: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1433: $stype.'_spreadsheets:'.
1434: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1435: $ENV{'user.domain'},
1436: $chome);
1437: if ($reply eq 'ok') {
1438: if ($makedef) {
1439: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1440: ':environment:spreadsheet_default_'.$stype.'='.
1441: &Apache::lonnet::escape($fn),
1442: $chome);
1443: } else {
1444: return $reply;
1445: }
1446: } else {
1447: return $reply;
1448: }
1449: } else {
1450: return $reply;
1451: }
1452: }
1453: return 'unauthorized';
1454: }
1455:
1456: # ----------------------------------------------- Make a temp copy of the sheet
1457: # "Modified workcopy" - interactive only
1458: #
1459:
1460: sub tmpwrite {
1461: my $safeeval=shift;
1462: my $fn=$ENV{'user.name'}.'_'.
1463: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1464: &getfilename($safeeval);
1465: $fn=~s/\W/\_/g;
1466: $fn=$tmpdir.$fn.'.tmp';
1467: my $fh;
1468: if ($fh=Apache::File->new('>'.$fn)) {
1469: print $fh join("\n",&getformulas($safeeval));
1470: }
1471: }
1472:
1473: # ---------------------------------------------------------- Read the temp copy
1474:
1475: sub tmpread {
1476: my ($safeeval,$nfield,$nform)=@_;
1477: my $fn=$ENV{'user.name'}.'_'.
1478: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1479: &getfilename($safeeval);
1480: $fn=~s/\W/\_/g;
1481: $fn=$tmpdir.$fn.'.tmp';
1482: my $fh;
1483: my %fo=();
1484: my $countrows=0;
1485: if ($fh=Apache::File->new($fn)) {
1486: my $name;
1487: while ($name=<$fh>) {
1488: chomp($name);
1489: my $value=<$fh>;
1490: chomp($value);
1491: $fo{$name}=$value;
1492: if ($name=~/^A(\d+)$/) {
1493: if ($1>$countrows) {
1494: $countrows=$1;
1495: }
1496: }
1497: }
1498: }
1499: if ($nform eq 'changesheet') {
1500: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1501: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1502: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1503: }
1504: } elsif ($nfield eq 'insertrow') {
1505: $countrows++;
1506: my $newrow=substr('000000'.$countrows,-7);
1507: if ($nform eq 'top') {
1508: $fo{'A'.$countrows}='--- '.$newrow;
1509: } else {
1510: $fo{'A'.$countrows}='~~~ '.$newrow;
1511: }
1512: } else {
1513: if ($nfield) { $fo{$nfield}=$nform; }
1514: }
1515: &setformulas($safeeval,%fo);
1516: }
1517:
1518: # ================================================================== Parameters
1519: # -------------------------------------------- Figure out a cascading parameter
1520: #
1521: # For this function to work
1522: #
1523: # * parmhash needs to be tied
1524: # * courseopt and useropt need to be initialized for this user and course
1525: #
1526:
1527: sub parmval {
1528: my ($what,$safeeval)=@_;
1529: my $cid=&getcid($safeeval);
1530: my $csec=&getcsec($safeeval);
1531: my $uname=&getuname($safeeval);
1532: my $udom=&getudom($safeeval);
1533: my $symb=&getusymb($safeeval);
1534:
1535: unless ($symb) { return ''; }
1536: my $result='';
1537:
1538: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1539: # ----------------------------------------------------- Cascading lookup scheme
1540: my $rwhat=$what;
1541: $what=~s/^parameter\_//;
1542: $what=~s/\_([^\_]+)$/\.$1/;
1543:
1544: my $symbparm=$symb.'.'.$what;
1545: my $mapparm=$mapname.'___(all).'.$what;
1546: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1547:
1548: my $seclevel=
1549: $usercourseprefix.'.['.
1550: $csec.'].'.$what;
1551: my $seclevelr=
1552: $usercourseprefix.'.['.
1553: $csec.'].'.$symbparm;
1554: my $seclevelm=
1555: $usercourseprefix.'.['.
1556: $csec.'].'.$mapparm;
1557:
1558: my $courselevel=
1559: $usercourseprefix.'.'.$what;
1560: my $courselevelr=
1561: $usercourseprefix.'.'.$symbparm;
1562: my $courselevelm=
1563: $usercourseprefix.'.'.$mapparm;
1564:
1565: # ---------------------------------------------------------- fourth, check user
1566:
1567: if ($uname) {
1568:
1569: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1570:
1571: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1572:
1573: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1574:
1575: }
1576:
1577: # --------------------------------------------------------- third, check course
1578:
1579: if ($csec) {
1580:
1581: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1582:
1583: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1584:
1585: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1586:
1587: }
1588:
1589: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1590:
1591: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1592:
1593: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1594:
1595: # ----------------------------------------------------- second, check map parms
1596:
1597: my $thisparm=$parmhash{$symbparm};
1598: if ($thisparm) { return $thisparm; }
1599:
1600: # -------------------------------------------------------- first, check default
1601:
1602: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1603:
1604: }
1605:
1606: # ---------------------------------------------- Update rows for course listing
1607:
1608: sub updateclasssheet {
1609: my $safeeval=shift;
1610: my $cnum=&getcnum($safeeval);
1611: my $cdom=&getcdom($safeeval);
1612: my $cid=&getcid($safeeval);
1613: my $chome=&getchome($safeeval);
1614:
1615: # ---------------------------------------------- Read class list and row labels
1616:
1617: my $classlst=&Apache::lonnet::reply
1618: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1619: my %currentlist=();
1620: my $now=time;
1621: unless ($classlst=~/^error\:/) {
1622: foreach (split(/\&/,$classlst)) {
1623: my ($name,$value)=split(/\=/,$_);
1624: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1625: my $active=1;
1626: if (($end) && ($now>$end)) { $active=0; }
1627: if ($active) {
1628: my $rowlabel='';
1629: $name=&Apache::lonnet::unescape($name);
1630: my ($sname,$sdom)=split(/\:/,$name);
1631: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1632: if ($ssec==-1) {
1633: unless ($ENV{'form.showcsv'}) {
1634: $rowlabel='<font color=red>Data not available: '.$name.
1635: '</font>';
1636: } else {
1637: $rowlabel='ERROR","'.$name.
1638: '","Data not available","","","';
1639: }
1640: } else {
1641: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1642: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1643: ':environment:firstname&middlename&lastname&generation',
1644: &Apache::lonnet::homeserver($sname,$sdom));
1645: unless ($ENV{'form.showcsv'}) {
1646: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1647: '&udom='.$sdom.'">'.
1648: $ssec.' '.$reply{$sname}.'<br>';
1649: foreach ( split(/\&/,$reply)) {
1650: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1651: }
1652: $rowlabel.='</a>';
1653: } else {
1654: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1655: my $ncount=0;
1656: foreach (split(/\&/,$reply)) {
1657: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1658: $ncount++;
1659: }
1660: unless ($ncount==4) { $rowlabel.=',""'; }
1661: $rowlabel=~s/\"$//;
1662: }
1663: }
1664: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1665: }
1666: } # end of foreach (split(/\&/,$classlst))
1667: #
1668: # -------------------- Find discrepancies between the course row table and this
1669: #
1670: my %f=&getformulas($safeeval);
1671: my $changed=0;
1672:
1673: my $maxrow=0;
1674: my %existing=();
1675:
1676: # ----------------------------------------------------------- Now obsolete rows
1677: foreach (keys(%f)) {
1678: if ($_=~/^A(\d+)/) {
1679: $maxrow=($1>$maxrow)?$1:$maxrow;
1680: $existing{$f{$_}}=1;
1681: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1682: $f{$_}='!!! Obsolete';
1683: $changed=1;
1684: }
1685: }
1686: }
1687:
1688: # -------------------------------------------------------- New and unknown keys
1689:
1690: foreach (sort keys(%currentlist)) {
1691: unless ($existing{$_}) {
1692: $changed=1;
1693: $maxrow++;
1694: $f{'A'.$maxrow}=$_;
1695: }
1696: }
1697:
1698: if ($changed) { &setformulas($safeeval,%f); }
1699:
1700: &setmaxrow($safeeval,$maxrow);
1701: &setrowlabels($safeeval,%currentlist);
1702:
1703: } else {
1704: return 'Could not access course data';
1705: }
1706: }
1707:
1708: # ----------------------------------- Update rows for student and assess sheets
1709:
1710: sub updatestudentassesssheet {
1711: my $safeeval=shift;
1712: my %bighash;
1713: my $stype=&gettype($safeeval);
1714: my %current=();
1715: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1716: # -------------------------------------------------------------------- Tie hash
1717: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1718: &GDBM_READER,0640)) {
1719: # --------------------------------------------------------- Get all assessments
1720:
1721: my %allkeys=('timestamp' =>
1722: 'Timestamp of Last Transaction<br>timestamp',
1723: 'subnumber' =>
1724: 'Number of Submissions<br>subnumber',
1725: 'tutornumber' =>
1726: 'Number of Tutor Responses<br>tutornumber',
1727: 'totalpoints' =>
1728: 'Total Points Granted<br>totalpoints');
1729:
1730: my $adduserstr='';
1731: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1732: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1733: $adduserstr='&uname='.&getuname($safeeval).
1734: '&udom='.&getudom($safeeval);
1735: }
1736:
1737: my %allassess=('_feedback' =>
1738: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1739: '">Feedback</a>',
1740: '_evaluation' =>
1741: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1742: '">Evaluation</a>',
1743: '_tutoring' =>
1744: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1745: '">Tutoring</a>',
1746: '_discussion' =>
1747: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1748: '">Discussion</a>'
1749: );
1750:
1751: foreach (keys(%bighash)) {
1752: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1753: my $mapid=$1;
1754: my $resid=$2;
1755: my $id=$mapid.'.'.$resid;
1756: my $srcf=$bighash{$_};
1757: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1758: my $symb=
1759: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1760: '___'.$resid.'___'.
1761: &Apache::lonnet::declutter($srcf);
1762: $allassess{$symb}=
1763: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1764: $bighash{'title_'.$id}.'</a>';
1765: if ($stype eq 'assesscalc') {
1766: foreach (split(/\,/,
1767: &Apache::lonnet::metadata($srcf,'keys'))) {
1768: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1769: my $key=$_;
1770: my $display=
1771: &Apache::lonnet::metadata($srcf,$key.'.display');
1772: unless ($display) {
1773: $display.=
1774: &Apache::lonnet::metadata($srcf,$key.'.name');
1775: }
1776: $display.='<br>'.$key;
1777: $allkeys{$key}=$display;
1778: }
1779: } # end of foreach
1780: }
1781: }
1782: }
1783: } # end of foreach (keys(%bighash))
1784: untie(%bighash);
1785:
1786: #
1787: # %allkeys has a list of storage and parameter displays by unikey
1788: # %allassess has a list of all resource displays by symb
1789: #
1790:
1791: if ($stype eq 'assesscalc') {
1792: %current=%allkeys;
1793: } elsif ($stype eq 'studentcalc') {
1794: %current=%allassess;
1795: }
1796: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1797: join('___;___',%current);
1798: } else {
1799: return 'Could not access course data';
1800: }
1801: # ------------------------------------------------------ Get current from cache
1802: } else {
1803: %current=split(/\_\_\_\;\_\_\_/,
1804: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1805: }
1806: # -------------------- Find discrepancies between the course row table and this
1807: #
1808: my %f=&getformulas($safeeval);
1809: my $changed=0;
1810:
1811: my $maxrow=0;
1812: my %existing=();
1813:
1814: # ----------------------------------------------------------- Now obsolete rows
1815: foreach (keys(%f)) {
1816: if ($_=~/^A(\d+)/) {
1817: $maxrow=($1>$maxrow)?$1:$maxrow;
1818: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1819: $existing{$usy}=1;
1820: unless ((defined($current{$usy})) || (!$1)) {
1821: $f{$_}='!!! Obsolete';
1822: $changed=1;
1823: } elsif ($ufn) {
1824: $current{$usy}
1825: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1826: }
1827: }
1828: }
1829:
1830: # -------------------------------------------------------- New and unknown keys
1831:
1832: foreach (keys(%current)) {
1833: unless ($existing{$_}) {
1834: $changed=1;
1835: $maxrow++;
1836: $f{'A'.$maxrow}=$_;
1837: }
1838: }
1839:
1840: if ($changed) { &setformulas($safeeval,%f); }
1841:
1842: &setmaxrow($safeeval,$maxrow);
1843: &setrowlabels($safeeval,%current);
1844:
1845: undef %current;
1846: undef %existing;
1847: }
1848:
1849: # ------------------------------------------------ Load data for one assessment
1850:
1851: sub loadstudent {
1852: my $safeeval=shift;
1853: my %c=();
1854: my %f=&getformulas($safeeval);
1855: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1856: %cachedstores=();
1857: {
1858: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1859: &getuname($safeeval).':'.
1860: &getcid($safeeval),
1861: &getuhome($safeeval));
1862: unless ($reply=~/^error\:/) {
1863: foreach ( split(/\&/,$reply)) {
1864: my ($name,$value)=split(/\=/,$_);
1865: $cachedstores{&Apache::lonnet::unescape($name)}=
1866: &Apache::lonnet::unescape($value);
1867: }
1868: }
1869: }
1870: my @assessdata=();
1871: foreach (keys(%f)) {
1872: if ($_=~/^A(\d+)/) {
1873: my $row=$1;
1874: unless (($f{$_}=~/^\!/) || ($row==0)) {
1875: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1876: @assessdata=&exportsheet(&getuname($safeeval),
1877: &getudom($safeeval),
1878: 'assesscalc',$usy,$ufn);
1879: my $index=0;
1880: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1881: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1882: if ($assessdata[$index]) {
1883: my $col=$_;
1884: if ($assessdata[$index]=~/\D/) {
1885: $c{$col.$row}="'".$assessdata[$index]."'";
1886: } else {
1887: $c{$col.$row}=$assessdata[$index];
1888: }
1889: unless ($col eq 'A') {
1890: $f{$col.$row}='import';
1891: }
1892: }
1893: $index++;
1894: }
1895: }
1896: }
1897: }
1898: $cachedassess='';
1899: undef %cachedstores;
1900: &setformulas($safeeval,%f);
1901: &setconstants($safeeval,%c);
1902: }
1903:
1904: # --------------------------------------------------- Load data for one student
1905:
1906: sub loadcourse {
1907: my ($safeeval,$r)=@_;
1908: my %c=();
1909: my %f=&getformulas($safeeval);
1910: my $total=0;
1911: foreach (keys(%f)) {
1912: if ($_=~/^A(\d+)/) {
1913: unless ($f{$_}=~/^\!/) { $total++; }
1914: }
1915: }
1916: my $now=0;
1917: my $since=time;
1918: $r->print(<<ENDPOP);
1919: <script>
1920: popwin=open('','popwin','width=400,height=100');
1921: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1922: '<h3>Spreadsheet Calculation Progress</h3>'+
1923: '<form name=popremain>'+
1924: '<input type=text size=35 name=remaining value=Starting></form>'+
1925: '</body></html>');
1926: popwin.document.close();
1927: </script>
1928: ENDPOP
1929: $r->rflush();
1930: foreach (keys(%f)) {
1931: if ($_=~/^A(\d+)/) {
1932: my $row=$1;
1933: unless (($f{$_}=~/^\!/) || ($row==0)) {
1934: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1935: 'studentcalc');
1936: undef %userrdatas;
1937: $now++;
1938: $r->print('<script>popwin.document.popremain.remaining.value="'.
1939: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1940: ' secs remaining";</script>');
1941: $r->rflush();
1942:
1943: my $index=0;
1944: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1945: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1946: if ($studentdata[$index]) {
1947: my $col=$_;
1948: if ($studentdata[$index]=~/\D/) {
1949: $c{$col.$row}="'".$studentdata[$index]."'";
1950: } else {
1951: $c{$col.$row}=$studentdata[$index];
1952: }
1953: unless ($col eq 'A') {
1954: $f{$col.$row}='import';
1955: }
1956: }
1957: $index++;
1958: }
1959: }
1960: }
1961: }
1962: &setformulas($safeeval,%f);
1963: &setconstants($safeeval,%c);
1964: $r->print('<script>popwin.close()</script>');
1965: $r->rflush();
1966: }
1967:
1968: # ------------------------------------------------ Load data for one assessment
1969:
1970: sub loadassessment {
1971: my $safeeval=shift;
1972:
1973: my $uhome=&getuhome($safeeval);
1974: my $uname=&getuname($safeeval);
1975: my $udom=&getudom($safeeval);
1976: my $symb=&getusymb($safeeval);
1977: my $cid=&getcid($safeeval);
1978: my $cnum=&getcnum($safeeval);
1979: my $cdom=&getcdom($safeeval);
1980: my $chome=&getchome($safeeval);
1981:
1982: my $namespace;
1983: unless ($namespace=$cid) { return ''; }
1984:
1985: # ----------------------------------------------------------- Get stored values
1986:
1987: my %returnhash=();
1988:
1989: if ($cachedassess eq $uname.':'.$udom) {
1990: #
1991: # get data out of the dumped stores
1992: #
1993:
1994: my $version=$cachedstores{'version:'.$symb};
1995: my $scope;
1996: for ($scope=1;$scope<=$version;$scope++) {
1997: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1998: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1999: }
2000: }
2001:
2002: } else {
2003: #
2004: # restore individual
2005: #
2006:
2007: my $answer=&Apache::lonnet::reply(
2008: "restore:$udom:$uname:".
2009: &Apache::lonnet::escape($namespace).":".
2010: &Apache::lonnet::escape($symb),$uhome);
2011: foreach (split(/\&/,$answer)) {
2012: my ($name,$value)=split(/\=/,$_);
2013: $returnhash{&Apache::lonnet::unescape($name)}=
2014: &Apache::lonnet::unescape($value);
2015: }
2016: my $version;
2017: for ($version=1;$version<=$returnhash{'version'};$version++) {
2018: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2019: $returnhash{$_}=$returnhash{$version.':'.$_};
2020: }
2021: }
2022: }
2023: # ----------------------------- returnhash now has all stores for this resource
2024:
2025: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
2026:
2027: my @oldkeys=keys %returnhash;
2028:
2029: foreach (@oldkeys) {
2030: my $name=$_;
2031: my $value=$returnhash{$_};
2032: delete $returnhash{$_};
2033: $name=~s/\_/\./g;
2034: $returnhash{$name}=$value;
2035: }
2036:
2037: # ---------------------------- initialize coursedata and userdata for this user
2038: undef %courseopt;
2039: undef %useropt;
2040:
2041: my $userprefix=$uname.'_'.$udom.'_';
2042:
2043: unless ($uhome eq 'no_host') {
2044: # -------------------------------------------------------------- Get coursedata
2045: unless
2046: ((time-$courserdatas{$cid.'.last_cache'})<240) {
2047: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2048: ':resourcedata',$chome);
2049: if ($reply!~/^error\:/) {
2050: $courserdatas{$cid}=$reply;
2051: $courserdatas{$cid.'.last_cache'}=time;
2052: }
2053: }
2054: foreach (split(/\&/,$courserdatas{$cid})) {
2055: my ($name,$value)=split(/\=/,$_);
2056: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2057: &Apache::lonnet::unescape($value);
2058: }
2059: # --------------------------------------------------- Get userdata (if present)
2060: unless
2061: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2062: my $reply=
2063: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2064: if ($reply!~/^error\:/) {
2065: $userrdatas{$uname.'___'.$udom}=$reply;
2066: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2067: }
2068: }
2069: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2070: my ($name,$value)=split(/\=/,$_);
2071: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2072: &Apache::lonnet::unescape($value);
2073: }
2074: }
2075: # ----------------- now courseopt, useropt initialized for this user and course
2076: # (used by parmval)
2077:
2078: #
2079: # Load keys for this assessment only
2080: #
2081: my %thisassess=();
2082: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2083:
2084: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2085: $thisassess{$_}=1;
2086: }
2087: #
2088: # Load parameters
2089: #
2090: my %c=();
2091:
2092: if (tie(%parmhash,'GDBM_File',
2093: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
2094: my %f=&getformulas($safeeval);
2095: foreach (keys(%f)) {
2096: if ($_=~/^A/) {
2097: unless ($f{$_}=~/^\!/) {
2098: if ($f{$_}=~/^parameter/) {
2099: if ($thisassess{$f{$_}}) {
2100: my $val=&parmval($f{$_},$safeeval);
2101: $c{$_}=$val;
2102: $c{$f{$_}}=$val;
2103: }
2104: } else {
2105: my $key=$f{$_};
2106: my $ckey=$key;
2107: $key=~s/^stores\_/resource\./;
2108: $key=~s/\_/\./g;
2109: $c{$_}=$returnhash{$key};
2110: $c{$ckey}=$returnhash{$key};
2111: }
2112: }
2113: }
2114: }
2115: untie(%parmhash);
2116: }
2117: &setconstants($safeeval,%c);
2118: }
2119:
2120: # --------------------------------------------------------- Various form fields
2121:
2122: sub textfield {
2123: my ($title,$name,$value)=@_;
2124: return "\n<p><b>$title:</b><br>".
2125: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2126: }
2127:
2128: sub hiddenfield {
2129: my ($name,$value)=@_;
2130: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2131: }
2132:
2133: sub selectbox {
2134: my ($title,$name,$value,%options)=@_;
2135: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2136: foreach (sort keys(%options)) {
2137: $selout.='<option value="'.$_.'"';
2138: if ($_ eq $value) { $selout.=' selected'; }
2139: $selout.='>'.$options{$_}.'</option>';
2140: }
2141: return $selout.'</select>';
2142: }
2143:
2144: # =============================================== Update information in a sheet
2145: #
2146: # Add new users or assessments, etc.
2147: #
2148:
2149: sub updatesheet {
2150: my $safeeval=shift;
2151: my $stype=&gettype($safeeval);
2152: if ($stype eq 'classcalc') {
2153: return &updateclasssheet($safeeval);
2154: } else {
2155: return &updatestudentassesssheet($safeeval);
2156: }
2157: }
2158:
2159: # =================================================== Load the rows for a sheet
2160: #
2161: # Import the data for rows
2162: #
2163:
2164: sub loadrows {
2165: my ($safeeval,$r)=@_;
2166: my $stype=&gettype($safeeval);
2167: if ($stype eq 'classcalc') {
2168: &loadcourse($safeeval,$r);
2169: } elsif ($stype eq 'studentcalc') {
2170: &loadstudent($safeeval);
2171: } else {
2172: &loadassessment($safeeval);
2173: }
2174: }
2175:
2176: # ======================================================= Forced recalculation?
2177:
2178: sub checkthis {
2179: my ($keyname,$time)=@_;
2180: return ($time<$expiredates{$keyname});
2181: }
2182: sub forcedrecalc {
2183: my ($uname,$udom,$stype,$usymb)=@_;
2184: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2185: my $time=$oldsheets{$key.'.time'};
2186: if ($ENV{'form.forcerecalc'}) { return 1; }
2187: unless ($time) { return 1; }
2188: if ($stype eq 'assesscalc') {
2189: my $map=(split(/\_\_\_/,$usymb))[0];
2190: if (&checkthis('::assesscalc:',$time) ||
2191: &checkthis('::assesscalc:'.$map,$time) ||
2192: &checkthis('::assesscalc:'.$usymb,$time) ||
2193: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2194: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2195: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2196: return 1;
2197: }
2198: } else {
2199: if (&checkthis('::studentcalc:',$time) ||
2200: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2201: return 1;
2202: }
2203: }
2204: return 0;
2205: }
2206:
2207: # ============================================================== Export handler
2208: #
2209: # Non-interactive call from with program
2210: #
2211:
2212: sub exportsheet {
2213: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2214: my @exportarr=();
2215:
2216: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2217: $fn='default_'.$1;
2218: }
2219:
2220: #
2221: # Check if cached
2222: #
2223:
2224: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2225: my $found='';
2226:
2227: if ($oldsheets{$key}) {
2228: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2229: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2230: if ($name eq $fn) {
2231: $found=$value;
2232: }
2233: }
2234: }
2235:
2236: unless ($found) {
2237: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2238: if ($oldsheets{$key}) {
2239: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2240: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2241: if ($name eq $fn) {
2242: $found=$value;
2243: }
2244: }
2245: }
2246: }
2247: #
2248: # Check if still valid
2249: #
2250: if ($found) {
2251: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2252: $found='';
2253: }
2254: }
2255:
2256: if ($found) {
2257: #
2258: # Return what was cached
2259: #
2260: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2261:
2262: } else {
2263: #
2264: # Not cached
2265: #
2266:
2267: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2268: &readsheet($thissheet,$fn);
2269: &updatesheet($thissheet);
2270: &loadrows($thissheet);
2271: &calcsheet($thissheet);
2272: @exportarr=&exportdata($thissheet);
2273: #
2274: # Store now
2275: #
2276: my $cid=$ENV{'request.course.id'};
2277: my $current='';
2278: if ($stype eq 'studentcalc') {
2279: $current=&Apache::lonnet::reply('get:'.
2280: $ENV{'course.'.$cid.'.domain'}.':'.
2281: $ENV{'course.'.$cid.'.num'}.
2282: ':nohist_calculatedsheets:'.
2283: &Apache::lonnet::escape($key),
2284: $ENV{'course.'.$cid.'.home'});
2285: } else {
2286: $current=&Apache::lonnet::reply('get:'.
2287: &getudom($thissheet).':'.
2288: &getuname($thissheet).
2289: ':nohist_calculatedsheets_'.
2290: $ENV{'request.course.id'}.':'.
2291: &Apache::lonnet::escape($key),
2292: &getuhome($thissheet));
2293:
2294: }
2295: my %currentlystored=();
2296: unless ($current=~/^error\:/) {
2297: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2298: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2299: $currentlystored{$name}=$value;
2300: }
2301: }
2302: $currentlystored{$fn}=join('___;___',@exportarr);
2303:
2304: my $newstore='';
2305: foreach (keys(%currentlystored)) {
2306: if ($newstore) { $newstore.='___&___'; }
2307: $newstore.=$_.'___=___'.$currentlystored{$_};
2308: }
2309: my $now=time;
2310: if ($stype eq 'studentcalc') {
2311: &Apache::lonnet::reply('put:'.
2312: $ENV{'course.'.$cid.'.domain'}.':'.
2313: $ENV{'course.'.$cid.'.num'}.
2314: ':nohist_calculatedsheets:'.
2315: &Apache::lonnet::escape($key).'='.
2316: &Apache::lonnet::escape($newstore).'&'.
2317: &Apache::lonnet::escape($key).'.time='.$now,
2318: $ENV{'course.'.$cid.'.home'});
2319: } else {
2320: &Apache::lonnet::reply('put:'.
2321: &getudom($thissheet).':'.
2322: &getuname($thissheet).
2323: ':nohist_calculatedsheets_'.
2324: $ENV{'request.course.id'}.':'.
2325: &Apache::lonnet::escape($key).'='.
2326: &Apache::lonnet::escape($newstore).'&'.
2327: &Apache::lonnet::escape($key).'.time='.$now,
2328: &getuhome($thissheet));
2329: }
2330: }
2331: return @exportarr;
2332: }
2333: # ============================================================ Expiration Dates
2334: #
2335: # Load previously cached student spreadsheets for this course
2336: #
2337:
2338: sub expirationdates {
2339: undef %expiredates;
2340: my $cid=$ENV{'request.course.id'};
2341: my $reply=&Apache::lonnet::reply('dump:'.
2342: $ENV{'course.'.$cid.'.domain'}.':'.
2343: $ENV{'course.'.$cid.'.num'}.
2344: ':nohist_expirationdates',
2345: $ENV{'course.'.$cid.'.home'});
2346: unless ($reply=~/^error\:/) {
2347: foreach (split(/\&/,$reply)) {
2348: my ($name,$value)=split(/\=/,$_);
2349: $expiredates{&Apache::lonnet::unescape($name)}
2350: =&Apache::lonnet::unescape($value);
2351: }
2352: }
2353: }
2354:
2355: # ===================================================== Calculated sheets cache
2356: #
2357: # Load previously cached student spreadsheets for this course
2358: #
2359:
2360: sub cachedcsheets {
2361: my $cid=$ENV{'request.course.id'};
2362: my $reply=&Apache::lonnet::reply('dump:'.
2363: $ENV{'course.'.$cid.'.domain'}.':'.
2364: $ENV{'course.'.$cid.'.num'}.
2365: ':nohist_calculatedsheets',
2366: $ENV{'course.'.$cid.'.home'});
2367: unless ($reply=~/^error\:/) {
2368: foreach ( split(/\&/,$reply)) {
2369: my ($name,$value)=split(/\=/,$_);
2370: $oldsheets{&Apache::lonnet::unescape($name)}
2371: =&Apache::lonnet::unescape($value);
2372: }
2373: }
2374: }
2375:
2376: # ===================================================== Calculated sheets cache
2377: #
2378: # Load previously cached assessment spreadsheets for this student
2379: #
2380:
2381: sub cachedssheets {
2382: my ($sname,$sdom,$shome)=@_;
2383: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2384: my $cid=$ENV{'request.course.id'};
2385: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2386: ':nohist_calculatedsheets_'.
2387: $ENV{'request.course.id'},
2388: $shome);
2389: unless ($reply=~/^error\:/) {
2390: foreach ( split(/\&/,$reply)) {
2391: my ($name,$value)=split(/\=/,$_);
2392: $oldsheets{&Apache::lonnet::unescape($name)}
2393: =&Apache::lonnet::unescape($value);
2394: }
2395: }
2396: $loadedcaches{$sname.'_'.$sdom}=1;
2397: }
2398: }
2399:
2400: # ===================================================== Calculated sheets cache
2401: #
2402: # Load previously cached assessment spreadsheets for this student
2403: #
2404:
2405: # ================================================================ Main handler
2406: #
2407: # Interactive call to screen
2408: #
2409: #
2410:
2411:
2412: sub handler {
2413: my $r=shift;
2414:
2415: if ($r->header_only) {
2416: $r->content_type('text/html');
2417: $r->send_http_header;
2418: return OK;
2419: }
2420:
2421: # ---------------------------------------------------- Global directory configs
2422:
2423: $includedir=$r->dir_config('lonIncludes');
2424: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2425:
2426: # ----------------------------------------------------- Needs to be in a course
2427:
2428: if ($ENV{'request.course.fn'}) {
2429:
2430: # --------------------------- Get query string for limited number of parameters
2431:
2432: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2433: ['uname','udom','usymb','ufn']);
2434:
2435: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2436: $ENV{'form.ufn'}='default_'.$1;
2437: }
2438:
2439: # -------------------------------------- Interactive loading of specific sheet?
2440: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2441: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2442: }
2443: # ------------------------------------------- Nothing there? Must be login user
2444:
2445: my $aname;
2446: my $adom;
2447:
2448: unless ($ENV{'form.uname'}) {
2449: $aname=$ENV{'user.name'};
2450: $adom=$ENV{'user.domain'};
2451: } else {
2452: $aname=$ENV{'form.uname'};
2453: $adom=$ENV{'form.udom'};
2454: }
2455:
2456: # ------------------------------------------------------------------- Open page
2457:
2458: $r->content_type('text/html');
2459: $r->header_out('Cache-control','no-cache');
2460: $r->header_out('Pragma','no-cache');
2461: $r->send_http_header;
2462:
2463: # --------------------------------------------------------------- Screen output
2464:
2465: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2466: $r->print(<<ENDSCRIPT);
2467: <script language="JavaScript">
2468:
2469: function celledit(cn,cf) {
2470: var cnf=prompt(cn,cf);
2471: if (cnf!=null) {
2472: document.sheet.unewfield.value=cn;
2473: document.sheet.unewformula.value=cnf;
2474: document.sheet.submit();
2475: }
2476: }
2477:
2478: function changesheet(cn) {
2479: document.sheet.unewfield.value=cn;
2480: document.sheet.unewformula.value='changesheet';
2481: document.sheet.submit();
2482: }
2483:
2484: function insertrow(cn) {
2485: document.sheet.unewfield.value='insertrow';
2486: document.sheet.unewformula.value=cn;
2487: document.sheet.submit();
2488: }
2489:
2490: </script>
2491: ENDSCRIPT
2492: $r->print('</head><body bgcolor="#FFFFFF">'.
2493: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2494: '<h1>LON-CAPA Spreadsheet</h1>'.
2495: '<form action="'.$r->uri.'" name=sheet method=post>'.
2496: &hiddenfield('uname',$ENV{'form.uname'}).
2497: &hiddenfield('udom',$ENV{'form.udom'}).
2498: &hiddenfield('usymb',$ENV{'form.usymb'}).
2499: &hiddenfield('unewfield','').
2500: &hiddenfield('unewformula',''));
2501:
2502: # ---------------------- Make sure that this gets out, even if user hits "stop"
2503:
2504: $r->rflush();
2505:
2506: # ---------------------------------------------------------------- Full recalc?
2507:
2508:
2509: if ($ENV{'form.forcerecalc'}) {
2510: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2511: undef %spreadsheets;
2512: undef %courserdatas;
2513: undef %userrdatas;
2514: undef %defaultsheets;
2515: undef %updatedata;
2516: }
2517:
2518: # ---------------------------------------- Read new sheet or modified worksheet
2519:
2520: $r->uri=~/\/(\w+)$/;
2521:
2522: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2523:
2524: # ------------------------ If a new formula had been entered, go from work copy
2525:
2526: if ($ENV{'form.unewfield'}) {
2527: $r->print('<h2>Modified Workcopy</h2>');
2528: $ENV{'form.unewformula'}=~s/\'/\"/g;
2529: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2530: $ENV{'form.unewformula'}.'<p>');
2531: &setfilename($asheet,$ENV{'form.ufn'});
2532: &tmpread($asheet,
2533: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2534:
2535: } elsif ($ENV{'form.saveas'}) {
2536: &setfilename($asheet,$ENV{'form.ufn'});
2537: &tmpread($asheet);
2538: } else {
2539: &readsheet($asheet,$ENV{'form.ufn'});
2540: }
2541:
2542: # -------------------------------------------------- Print out user information
2543:
2544: unless (&gettype($asheet) eq 'classcalc') {
2545: $r->print('<p><b>User:</b> '.&getuname($asheet).
2546: '<br><b>Domain:</b> '.&getudom($asheet));
2547: if (&getcsec($asheet) eq '-1') {
2548: $r->print('<h3><font color=red>'.
2549: 'Not a student in this course</font></h3>');
2550: } else {
2551: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2552: }
2553: if ($ENV{'form.usymb'}) {
2554: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2555: }
2556: }
2557:
2558: # ---------------------------------------------------------------- Course title
2559:
2560: $r->print('<h1>'.
2561: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2562: '</h1><h3>'.localtime().'</h3>');
2563:
2564: # ---------------------------------------------------- See if user can see this
2565:
2566: if ((&gettype($asheet) eq 'classcalc') ||
2567: (&getuname($asheet) ne $ENV{'user.name'}) ||
2568: (&getudom($asheet) ne $ENV{'user.domain'})) {
2569: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2570: $r->print(
2571: '<h1>Access Permission Denied</h1></form></body></html>');
2572: return OK;
2573: }
2574: }
2575:
2576: # ---------------------------------------------------------- Additional options
2577:
2578: $r->print(
2579: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2580: );
2581: if (&gettype($asheet) eq 'assesscalc') {
2582: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2583: &getuname($asheet).
2584: '&udom='.&getudom($asheet).
2585: '">Level up: Student Sheet</a></font><p>');
2586: }
2587:
2588: if ((&gettype($asheet) eq 'studentcalc') &&
2589: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2590: $r->print (
2591: '<p><font size=+2><a href="/adm/classcalc">'.
2592: 'Level up: Course Sheet</a></font><p>');
2593: }
2594:
2595:
2596: # ----------------------------------------------------------------- Save dialog
2597:
2598:
2599: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2600: my $fname=$ENV{'form.ufn'};
2601: $fname=~s/\_[^\_]+$//;
2602: if ($fname eq 'default') { $fname='course_default'; }
2603: $r->print('<input type=submit name=saveas value="Save as ...">'.
2604: '<input type=text size=20 name=newfn value="'.$fname.
2605: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2606: }
2607:
2608: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2609:
2610: # ----------------------------------------------------------------- Load dialog
2611: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2612: $r->print('<p><input type=submit name=load value="Load ...">'.
2613: '<select name="loadthissheet">'.
2614: '<option name="default">Default</option>');
2615: foreach (&othersheets($asheet,&gettype($asheet))) {
2616: $r->print('<option name="'.$_.'"');
2617: if ($ENV{'form.ufn'} eq $_) {
2618: $r->print(' selected');
2619: }
2620: $r->print('>'.$_.'</option>');
2621: }
2622: $r->print('</select><p>');
2623: if (&gettype($asheet) eq 'studentcalc') {
2624: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2625: }
2626: }
2627:
2628: # --------------------------------------------------------------- Cached sheets
2629:
2630: &expirationdates();
2631:
2632: undef %oldsheets;
2633: undef %loadedcaches;
2634:
2635: if (&gettype($asheet) eq 'classcalc') {
2636: $r->print("Loading previously calculated student sheets ...<br>\n");
2637: $r->rflush();
2638: &cachedcsheets();
2639: } elsif (&gettype($asheet) eq 'studentcalc') {
2640: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2641: $r->rflush();
2642: &cachedssheets(&getuname($asheet),&getudom($asheet),
2643: &getuhome($asheet));
2644: }
2645:
2646: # ----------------------------------------------------- Update sheet, load rows
2647:
2648: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2649: $r->rflush();
2650:
2651: &updatesheet($asheet);
2652:
2653: $r->print("Updated rows, loading row data ...<br>\n");
2654: $r->rflush();
2655:
2656: &loadrows($asheet,$r);
2657:
2658: $r->print("Loaded row data, calculating sheet ...<br>\n");
2659: $r->rflush();
2660:
2661: my $calcoutput=&calcsheet($asheet);
2662: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2663:
2664: # ---------------------------------------------------- See if something to save
2665:
2666: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2667: my $fname='';
2668: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2669: $fname=~s/\W/\_/g;
2670: if ($fname eq 'default') { $fname='course_default'; }
2671: $fname.='_'.&gettype($asheet);
2672: &setfilename($asheet,$fname);
2673: $ENV{'form.ufn'}=$fname;
2674: $r->print('<p>Saving spreadsheet: '.
2675: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2676: }
2677: }
2678:
2679: # ------------------------------------------------ Write the modified worksheet
2680:
2681: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2682:
2683: &tmpwrite($asheet);
2684:
2685: if (&gettype($asheet) eq 'studentcalc') {
2686: $r->print('<br>Show rows with empty A column: ');
2687: } else {
2688: $r->print('<br>Show empty rows: ');
2689: }
2690:
2691: $r->print(&hiddenfield('userselhidden','true').
2692: '<input type=checkbox name=showall onClick="submit()"');
2693:
2694: if ($ENV{'form.showall'}) {
2695: $r->print(' checked');
2696: } else {
2697: unless ($ENV{'form.userselhidden'}) {
2698: unless
2699: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2700: $r->print(' checked');
2701: $ENV{'form.showall'}=1;
2702: }
2703: }
2704: }
2705: $r->print('>');
2706:
2707: if (&gettype($asheet) eq 'classcalc') {
2708: $r->print(
2709: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2710: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2711: $r->print('>');
2712: }
2713:
2714: # ------------------------------------------------------------------ Insertrows
2715:
2716: $r->print(<<ENDINSERTBUTTONS);
2717: <br>
2718: <input type='button' onClick='insertrow("top");'
2719: value='Insert Row Top'>
2720: <input type='button' onClick='insertrow("bottom");'
2721: value='Insert Row Bottom'><br>
2722: ENDINSERTBUTTONS
2723:
2724: # ------------------------------------------------------------- Print out sheet
2725:
2726: &outsheet($r,$asheet);
2727: $r->print('</form></body></html>');
2728:
2729: # ------------------------------------------------------------------------ Done
2730: } else {
2731: # ----------------------------- Not in a course, or not allowed to modify parms
2732: $ENV{'user.error.msg'}=
2733: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2734: return HTTP_NOT_ACCEPTABLE;
2735: }
2736: return OK;
2737:
2738: }
2739:
2740: 1;
2741: __END__
2742:
2743:
2744:
2745:
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