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lonspreadsheet.pm
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1.116:
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Mon Oct 7 19:11:39 2002 UTC (21 years, 9 months ago) by
matthew
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Note: this version has a lot of changes and has not been thoroughly tested.
Big changes:
Removed many of the get/set functions. The variables set are in
%{$sheetdata}.
&loadassessment was modified to cache unescaped, hashified data instead
of caching the results of &reply.
Many functions were changed to use $sheetdata to get/store information about
the sheets.
&handler was changed to use $sheet and $sheetdata instead of $asheet and
$asheetdata. Also modified to not call the removed get/set functions.
1: #
2: # $Id: lonspreadsheet.pm,v 1.116 2002/10/07 19:11:39 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # POD required stuff:
30:
31: =head1 NAME
32:
33: lonspreadsheet
34:
35: =head1 SYNOPSIS
36:
37: Spreadsheet interface to internal LON-CAPA data
38:
39: =head1 DESCRIPTION
40:
41: Lonspreadsheet provides course coordinators the ability to manage their
42: students grades online. The students are able to view their own grades, but
43: not the grades of their peers. The spreadsheet is highly customizable,
44: offering the ability to use Perl code to manipulate data, as well as many
45: built-in functions.
46:
47: =head2 Functions available to user of lonspreadsheet
48:
49: =over 4
50:
51: =cut
52:
53: package Apache::lonspreadsheet;
54:
55: use strict;
56: use Safe;
57: use Safe::Hole;
58: use Opcode;
59: use Apache::lonnet;
60: use Apache::Constants qw(:common :http);
61: use GDBM_File;
62: use HTML::TokeParser;
63: use Apache::lonhtmlcommon;
64: #
65: # Caches for coursewide information
66: #
67: my %Section;
68:
69: #
70: # Caches for previously calculated spreadsheets
71: #
72:
73: my %oldsheets;
74: my %loadedcaches;
75: my %expiredates;
76:
77: #
78: # Cache for stores of an individual user
79: #
80:
81: my $cachedassess;
82: my %cachedstores;
83:
84: #
85: # These cache hashes need to be independent of user, resource and course
86: # (user and course can/should be in the keys)
87: #
88:
89: my %spreadsheets;
90: my %courserdatas;
91: my %userrdatas;
92: my %defaultsheets;
93: my %updatedata;
94:
95: #
96: # These global hashes are dependent on user, course and resource,
97: # and need to be initialized every time when a sheet is calculated
98: #
99: my %courseopt;
100: my %useropt;
101: my %parmhash;
102:
103: #
104: # Some hashes for stats on timing and performance
105: #
106:
107: my %starttimes;
108: my %usedtimes;
109: my %numbertimes;
110:
111: # Stuff that only the screen handler can know
112:
113: my $includedir;
114: my $tmpdir;
115:
116: # =============================================================================
117: # ===================================== Implements an instance of a spreadsheet
118:
119: sub initsheet {
120: my $safeeval = new Safe(shift);
121: my $safehole = new Safe::Hole;
122: $safeeval->permit("entereval");
123: $safeeval->permit(":base_math");
124: $safeeval->permit("sort");
125: $safeeval->deny(":base_io");
126: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
127: $safeeval->share('$@');
128: my $code=<<'ENDDEFS';
129: # ---------------------------------------------------- Inside of the safe space
130:
131: #
132: # f: formulas
133: # t: intermediate format (variable references expanded)
134: # v: output values
135: # c: preloaded constants (A-column)
136: # rl: row label
137: # os: other spreadsheets (for student spreadsheet only)
138:
139: undef %sheet_values;
140: undef %t;
141: undef %f;
142: undef %c;
143: undef %rowlabel;
144: undef @os;
145:
146: $maxrow = 0;
147: $sheettype = '';
148:
149: # filename/reference of the sheet
150: $filename = '';
151:
152: # user data
153: $uname = '';
154: $uhome = '';
155: $udom = '';
156:
157: # course data
158:
159: $csec = '';
160: $chome= '';
161: $cnum = '';
162: $cdom = '';
163: $cid = '';
164: $coursefilename = '';
165:
166: # symb
167:
168: $usymb = '';
169:
170: # error messages
171: $errormsg = '';
172:
173: sub mask {
174: my ($lower,$upper)=@_;
175:
176: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
177: my $la=$1;
178: my $ld=$2;
179:
180: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
181: my $ua=$1;
182: my $ud=$2;
183: my $alpha='';
184: my $num='';
185:
186: if (($la eq '*') || ($ua eq '*')) {
187: $alpha='[A-Za-z]';
188: } else {
189: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
190: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
191: $alpha='['.$la.'-'.$ua.']';
192: } else {
193: $alpha='['.$la.'-Za-'.$ua.']';
194: }
195: }
196:
197: if (($ld eq '*') || ($ud eq '*')) {
198: $num='\d+';
199: } else {
200: if (length($ld)!=length($ud)) {
201: $num.='(';
202: foreach ($ld=~m/\d/g) {
203: $num.='['.$_.'-9]';
204: }
205: if (length($ud)-length($ld)>1) {
206: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
207: }
208: $num.='|';
209: foreach ($ud=~m/\d/g) {
210: $num.='[0-'.$_.']';
211: }
212: $num.=')';
213: } else {
214: my @lda=($ld=~m/\d/g);
215: my @uda=($ud=~m/\d/g);
216: my $i; $j=0; $notdone=1;
217: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
218: if ($lda[$i]==$uda[$i]) {
219: $num.=$lda[$i];
220: $j=$i;
221: } else {
222: $notdone=0;
223: }
224: }
225: if ($j<$#lda-1) {
226: $num.='('.$lda[$j+1];
227: for ($i=$j+2;$i<=$#lda;$i++) {
228: $num.='['.$lda[$i].'-9]';
229: }
230: if ($uda[$j+1]-$lda[$j+1]>1) {
231: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
232: ($#lda-$j-1).'}';
233: }
234: $num.='|'.$uda[$j+1];
235: for ($i=$j+2;$i<=$#uda;$i++) {
236: $num.='[0-'.$uda[$i].']';
237: }
238: $num.=')';
239: } else {
240: if ($lda[$#lda]!=$uda[$#uda]) {
241: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
242: }
243: }
244: }
245: }
246: return '^'.$alpha.$num."\$";
247: }
248:
249: #-------------------------------------------------------
250:
251: =item UWCALC(hashname,modules,units,date)
252:
253: returns the proportion of the module
254: weights not previously completed by the student.
255:
256: =over 4
257:
258: =item hashname
259:
260: name of the hash the module dates have been inserted into
261:
262: =item modules
263:
264: reference to a cell which contains a comma deliminated list of modules
265: covered by the assignment.
266:
267: =item units
268:
269: reference to a cell which contains a comma deliminated list of module
270: weights with respect to the assignment
271:
272: =item date
273:
274: reference to a cell which contains the date the assignment was completed.
275:
276: =back
277:
278: =cut
279:
280: #-------------------------------------------------------
281: sub UWCALC {
282: my ($hashname,$modules,$units,$date) = @_;
283: my @Modules = split(/,/,$modules);
284: my @Units = split(/,/,$units);
285: my $total_weight;
286: foreach (@Units) {
287: $total_weight += $_;
288: }
289: my $usum=0;
290: for (my $i=0; $i<=$#Modules; $i++) {
291: if (&HASH($hashname,$Modules[$i]) eq $date) {
292: $usum += $Units[$i];
293: }
294: }
295: return $usum/$total_weight;
296: }
297:
298: #-------------------------------------------------------
299:
300: =item CDLSUM(list)
301:
302: returns the sum of the elements in a cell which contains
303: a Comma Deliminate List of numerical values.
304: 'list' is a reference to a cell which contains a comma deliminated list.
305:
306: =cut
307:
308: #-------------------------------------------------------
309: sub CDLSUM {
310: my ($list)=@_;
311: my $sum;
312: foreach (split/,/,$list) {
313: $sum += $_;
314: }
315: return $sum;
316: }
317:
318: #-------------------------------------------------------
319:
320: =item CDLITEM(list,index)
321:
322: returns the item at 'index' in a Comma Deliminated List.
323:
324: =over 4
325:
326: =item list
327:
328: reference to a cell which contains a comma deliminated list.
329:
330: =item index
331:
332: the Perl index of the item requested (first element in list has
333: an index of 0)
334:
335: =back
336:
337: =cut
338:
339: #-------------------------------------------------------
340: sub CDLITEM {
341: my ($list,$index)=@_;
342: my @Temp = split/,/,$list;
343: return $Temp[$index];
344: }
345:
346: #-------------------------------------------------------
347:
348: =item CDLHASH(name,key,value)
349:
350: loads a comma deliminated list of keys into
351: the hash 'name', all with a value of 'value'.
352:
353: =over 4
354:
355: =item name
356:
357: name of the hash.
358:
359: =item key
360:
361: (a pointer to) a comma deliminated list of keys.
362:
363: =item value
364:
365: a single value to be entered for each key.
366:
367: =back
368:
369: =cut
370:
371: #-------------------------------------------------------
372: sub CDLHASH {
373: my ($name,$key,$value)=@_;
374: my @Keys;
375: my @Values;
376: # Check to see if we have multiple $key values
377: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
378: my $keymask = &mask($key);
379: # Assume the keys are addresses
380: my @Temp = grep /$keymask/,keys(%sheet_values);
381: @Keys = $sheet_values{@Temp};
382: } else {
383: $Keys[0]= $key;
384: }
385: my @Temp;
386: foreach $key (@Keys) {
387: @Temp = (@Temp, split/,/,$key);
388: }
389: @Keys = @Temp;
390: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
391: my $valmask = &mask($value);
392: my @Temp = grep /$valmask/,keys(%sheet_values);
393: @Values =$sheet_values{@Temp};
394: } else {
395: $Values[0]= $value;
396: }
397: $value = $Values[0];
398: # Add values to hash
399: for (my $i = 0; $i<=$#Keys; $i++) {
400: my $key = $Keys[$i];
401: if (! exists ($hashes{$name}->{$key})) {
402: $hashes{$name}->{$key}->[0]=$value;
403: } else {
404: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
405: $hashes{$name}->{$key} = \@Temp;
406: }
407: }
408: return "hash '$name' updated";
409: }
410:
411: #-------------------------------------------------------
412:
413: =item GETHASH(name,key,index)
414:
415: returns the element in hash 'name'
416: reference by the key 'key', at index 'index' in the values list.
417:
418: =cut
419:
420: #-------------------------------------------------------
421: sub GETHASH {
422: my ($name,$key,$index)=@_;
423: if (! defined($index)) {
424: $index = 0;
425: }
426: if ($key =~ /^[A-z]\d+$/) {
427: $key = $sheet_values{$key};
428: }
429: return $hashes{$name}->{$key}->[$index];
430: }
431:
432: #-------------------------------------------------------
433:
434: =item CLEARHASH(name)
435:
436: clears all the values from the hash 'name'
437:
438: =item CLEARHASH(name,key)
439:
440: clears all the values from the hash 'name' associated with the given key.
441:
442: =cut
443:
444: #-------------------------------------------------------
445: sub CLEARHASH {
446: my ($name,$key)=@_;
447: if (defined($key)) {
448: if (exists($hashes{$name}->{$key})) {
449: $hashes{$name}->{$key}=undef;
450: return "hash '$name' key '$key' cleared";
451: }
452: } else {
453: if (exists($hashes{$name})) {
454: $hashes{$name}=undef;
455: return "hash '$name' cleared";
456: }
457: }
458: return "Error in clearing hash";
459: }
460:
461: #-------------------------------------------------------
462:
463: =item HASH(name,key,value)
464:
465: loads values into an internal hash. If a key
466: already has a value associated with it, the values are sorted numerically.
467:
468: =item HASH(name,key)
469:
470: returns the 0th value in the hash 'name' associated with 'key'.
471:
472: =cut
473:
474: #-------------------------------------------------------
475: sub HASH {
476: my ($name,$key,$value)=@_;
477: my @Keys;
478: undef @Keys;
479: my @Values;
480: # Check to see if we have multiple $key values
481: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
482: my $keymask = &mask($key);
483: # Assume the keys are addresses
484: my @Temp = grep /$keymask/,keys(%sheet_values);
485: @Keys = $sheet_values{@Temp};
486: } else {
487: $Keys[0]= $key;
488: }
489: # If $value is empty, return the first value associated
490: # with the first key.
491: if (! $value) {
492: return $hashes{$name}->{$Keys[0]}->[0];
493: }
494: # Check to see if we have multiple $value(s)
495: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
496: my $valmask = &mask($value);
497: my @Temp = grep /$valmask/,keys(%sheet_values);
498: @Values =$sheet_values{@Temp};
499: } else {
500: $Values[0]= $value;
501: }
502: # Add values to hash
503: for (my $i = 0; $i<=$#Keys; $i++) {
504: my $key = $Keys[$i];
505: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
506: if (! exists ($hashes{$name}->{$key})) {
507: $hashes{$name}->{$key}->[0]=$value;
508: } else {
509: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
510: $hashes{$name}->{$key} = \@Temp;
511: }
512: }
513: return $Values[-1];
514: }
515:
516: #-------------------------------------------------------
517:
518: =item NUM(range)
519:
520: returns the number of items in the range.
521:
522: =cut
523:
524: #-------------------------------------------------------
525: sub NUM {
526: my $mask=mask(@_);
527: my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
528: return $num;
529: }
530:
531: sub BIN {
532: my ($low,$high,$lower,$upper)=@_;
533: my $mask=mask($lower,$upper);
534: my $num=0;
535: foreach (grep /$mask/,keys(%sheet_values)) {
536: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
537: $num++;
538: }
539: }
540: return $num;
541: }
542:
543:
544: #-------------------------------------------------------
545:
546: =item SUM(range)
547:
548: returns the sum of items in the range.
549:
550: =cut
551:
552: #-------------------------------------------------------
553: sub SUM {
554: my $mask=mask(@_);
555: my $sum=0;
556: foreach (grep /$mask/,keys(%sheet_values)) {
557: $sum+=$sheet_values{$_};
558: }
559: return $sum;
560: }
561:
562: #-------------------------------------------------------
563:
564: =item MEAN(range)
565:
566: compute the average of the items in the range.
567:
568: =cut
569:
570: #-------------------------------------------------------
571: sub MEAN {
572: my $mask=mask(@_);
573: my $sum=0; my $num=0;
574: foreach (grep /$mask/,keys(%sheet_values)) {
575: $sum+=$sheet_values{$_};
576: $num++;
577: }
578: if ($num) {
579: return $sum/$num;
580: } else {
581: return undef;
582: }
583: }
584:
585: #-------------------------------------------------------
586:
587: =item STDDEV(range)
588:
589: compute the standard deviation of the items in the range.
590:
591: =cut
592:
593: #-------------------------------------------------------
594: sub STDDEV {
595: my $mask=mask(@_);
596: my $sum=0; my $num=0;
597: foreach (grep /$mask/,keys(%sheet_values)) {
598: $sum+=$sheet_values{$_};
599: $num++;
600: }
601: unless ($num>1) { return undef; }
602: my $mean=$sum/$num;
603: $sum=0;
604: foreach (grep /$mask/,keys(%sheet_values)) {
605: $sum+=($sheet_values{$_}-$mean)**2;
606: }
607: return sqrt($sum/($num-1));
608: }
609:
610: #-------------------------------------------------------
611:
612: =item PROD(range)
613:
614: compute the product of the items in the range.
615:
616: =cut
617:
618: #-------------------------------------------------------
619: sub PROD {
620: my $mask=mask(@_);
621: my $prod=1;
622: foreach (grep /$mask/,keys(%sheet_values)) {
623: $prod*=$sheet_values{$_};
624: }
625: return $prod;
626: }
627:
628: #-------------------------------------------------------
629:
630: =item MAX(range)
631:
632: compute the maximum of the items in the range.
633:
634: =cut
635:
636: #-------------------------------------------------------
637: sub MAX {
638: my $mask=mask(@_);
639: my $max='-';
640: foreach (grep /$mask/,keys(%sheet_values)) {
641: unless ($max) { $max=$sheet_values{$_}; }
642: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
643: }
644: return $max;
645: }
646:
647: #-------------------------------------------------------
648:
649: =item MIN(range)
650:
651: compute the minimum of the items in the range.
652:
653: =cut
654:
655: #-------------------------------------------------------
656: sub MIN {
657: my $mask=mask(@_);
658: my $min='-';
659: foreach (grep /$mask/,keys(%sheet_values)) {
660: unless ($max) { $max=$sheet_values{$_}; }
661: if (($sheet_values{$_}<$min) || ($min eq '-')) {
662: $min=$sheet_values{$_};
663: }
664: }
665: return $min;
666: }
667:
668: #-------------------------------------------------------
669:
670: =item SUMMAX(num,lower,upper)
671:
672: compute the sum of the largest 'num' items in the range from
673: 'lower' to 'upper'
674:
675: =cut
676:
677: #-------------------------------------------------------
678: sub SUMMAX {
679: my ($num,$lower,$upper)=@_;
680: my $mask=mask($lower,$upper);
681: my @inside=();
682: foreach (grep /$mask/,keys(%sheet_values)) {
683: push (@inside,$sheet_values{$_});
684: }
685: @inside=sort(@inside);
686: my $sum=0; my $i;
687: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
688: $sum+=$inside[$i];
689: }
690: return $sum;
691: }
692:
693: #-------------------------------------------------------
694:
695: =item SUMMIN(num,lower,upper)
696:
697: compute the sum of the smallest 'num' items in the range from
698: 'lower' to 'upper'
699:
700: =cut
701:
702: #-------------------------------------------------------
703: sub SUMMIN {
704: my ($num,$lower,$upper)=@_;
705: my $mask=mask($lower,$upper);
706: my @inside=();
707: foreach (grep /$mask/,keys(%sheet_values)) {
708: $inside[$#inside+1]=$sheet_values{$_};
709: }
710: @inside=sort(@inside);
711: my $sum=0; my $i;
712: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
713: $sum+=$inside[$i];
714: }
715: return $sum;
716: }
717:
718: #-------------------------------------------------------
719:
720: =item MINPARM(parametername)
721:
722: Returns the minimum value of the parameters matching the parametername.
723: parametername should be a string such as 'duedate'.
724:
725: =cut
726:
727: #-------------------------------------------------------
728: sub MINPARM {
729: my ($expression) = @_;
730: my $min = undef;
731: study($expression);
732: foreach $parameter (keys(%c)) {
733: next if ($parameter !~ /$expression/);
734: if ((! defined($min)) || ($min > $c{$parameter})) {
735: $min = $c{$parameter}
736: }
737: }
738: return $min;
739: }
740:
741: #-------------------------------------------------------
742:
743: =item MAXPARM(parametername)
744:
745: Returns the maximum value of the parameters matching the input parameter name.
746: parametername should be a string such as 'duedate'.
747:
748: =cut
749:
750: #-------------------------------------------------------
751: sub MAXPARM {
752: my ($expression) = @_;
753: my $max = undef;
754: study($expression);
755: foreach $parameter (keys(%c)) {
756: next if ($parameter !~ /$expression/);
757: if ((! defined($min)) || ($max < $c{$parameter})) {
758: $max = $c{$parameter}
759: }
760: }
761: return $max;
762: }
763:
764: #--------------------------------------------------------
765: sub expandnamed {
766: my $expression=shift;
767: if ($expression=~/^\&/) {
768: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
769: my @vars=split(/\W+/,$formula);
770: my %values=();
771: undef %values;
772: foreach ( @vars ) {
773: my $varname=$_;
774: if ($varname=~/\D/) {
775: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
776: $varname=~s/$var/\(\\w\+\)/g;
777: foreach (keys(%c)) {
778: if ($_=~/$varname/) {
779: $values{$1}=1;
780: }
781: }
782: }
783: }
784: if ($func eq 'EXPANDSUM') {
785: my $result='';
786: foreach (keys(%values)) {
787: my $thissum=$formula;
788: $thissum=~s/$var/$_/g;
789: $result.=$thissum.'+';
790: }
791: $result=~s/\+$//;
792: return $result;
793: } else {
794: return 0;
795: }
796: } else {
797: # it is not a function, so it is a parameter name
798: # We should do the following:
799: # 1. Take the list of parameter names
800: # 2. look through the list for ones that match the parameter we want
801: # 3. If there are no collisions, return the one that matches
802: # 4. If there is a collision, return 'bad parameter name error'
803: my $returnvalue = '';
804: my @matches = ();
805: $#matches = -1;
806: study $expression;
807: foreach $parameter (keys(%c)) {
808: push @matches,$parameter if ($parameter =~ /$expression/);
809: }
810: if ($#matches == 0) {
811: $returnvalue = '$c{\''.$matches[0].'\'}';
812: } elsif ($#matches > 0) {
813: # more than one match. Look for a concise one
814: $returnvalue = "'non-unique parameter name : $expression'";
815: foreach (@matches) {
816: if (/^$expression$/) {
817: $returnvalue = '$c{\''.$_.'\'}';
818: }
819: }
820: } else {
821: $returnvalue = "'bad parameter name : $expression'";
822: }
823: return $returnvalue;
824: }
825: }
826:
827: sub sett {
828: %t=();
829: my $pattern='';
830: if ($sheettype eq 'assesscalc') {
831: $pattern='A';
832: } else {
833: $pattern='[A-Z]';
834: }
835: # Deal with the template row
836: foreach (keys(%f)) {
837: next if ($_!~/template\_(\w)/);
838: my $col=$1;
839: next if ($col=~/^$pattern/);
840: foreach (keys(%f)) {
841: next if ($_!~/A(\d+)/);
842: my $trow=$1;
843: next if (! $trow);
844: # Get the name of this cell
845: my $lb=$col.$trow;
846: # Grab the template declaration
847: $t{$lb}=$f{'template_'.$col};
848: # Replace '#' with the row number
849: $t{$lb}=~s/\#/$trow/g;
850: # Replace '....' with ','
851: $t{$lb}=~s/\.\.+/\,/g;
852: # Replace 'A0' with the value from 'A0'
853: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
854: # Replace parameters
855: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
856: }
857: }
858: # Deal with the normal cells
859: foreach (keys(%f)) {
860: if (exists($f{$_}) && ($_!~/template\_/)) {
861: my $matches=($_=~/^$pattern(\d+)/);
862: if (($matches) && ($1)) {
863: unless ($f{$_}=~/^\!/) {
864: $t{$_}=$c{$_};
865: }
866: } else {
867: $t{$_}=$f{$_};
868: $t{$_}=~s/\.\.+/\,/g;
869: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
870: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
871: }
872: }
873: }
874: # For inserted lines, [B-Z] is also valid
875: unless ($sheettype eq 'assesscalc') {
876: foreach (keys(%f)) {
877: if ($_=~/[B-Z](\d+)/) {
878: if ($f{'A'.$1}=~/^[\~\-]/) {
879: $t{$_}=$f{$_};
880: $t{$_}=~s/\.\.+/\,/g;
881: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
882: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
883: }
884: }
885: }
886: }
887: # For some reason 'A0' gets special treatment... This seems superfluous
888: # but I imagine it is here for a reason.
889: $t{'A0'}=$f{'A0'};
890: $t{'A0'}=~s/\.\.+/\,/g;
891: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
892: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
893: }
894:
895: sub calc {
896: undef %sheet_values;
897: &sett();
898: my $notfinished=1;
899: my $lastcalc='';
900: my $depth=0;
901: while ($notfinished) {
902: $notfinished=0;
903: foreach (keys(%t)) {
904: my $old=$sheet_values{$_};
905: $sheet_values{$_}=eval $t{$_};
906: if ($@) {
907: undef %sheet_values;
908: return $_.': '.$@;
909: }
910: if ($sheet_values{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
911: }
912: $depth++;
913: if ($depth>100) {
914: undef %sheet_values;
915: return $lastcalc.': Maximum calculation depth exceeded';
916: }
917: }
918: return '';
919: }
920:
921: sub templaterow {
922: my @cols=();
923: $cols[0]='<b><font size=+1>Template</font></b>';
924: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
925: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
926: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
927: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
928: my $fm=$f{'template_'.$_};
929: $fm=~s/[\'\"]/\&\#34;/g;
930: push(@cols,"'template_$_','$fm'".'___eq___'.$fm);
931: }
932: return @cols;
933: }
934:
935: #
936: # This is actually used for the student spreadsheet, not the assessment sheet
937: # Do not be fooled by the name!
938: #
939: sub outrowassess {
940: # $n is the current row number
941: my $n=shift;
942: my @cols=();
943: if ($n) {
944: my ($usy,$ufn)=split(/__&&&\__/,$f{'A'.$n});
945: if ($rowlabel{$usy}) {
946: $cols[0]=$rowlabel{$usy}.'<br>'.
947: '<select name="sel_'.$n.'" onChange="changesheet('.$n.')">'.
948: '<option name="default">Default</option>';
949: } else {
950: $cols[0]='';
951: }
952: foreach (@os) {
953: $cols[0].='<option name="'.$_.'"';
954: if ($ufn eq $_) {
955: $cols[0].=' selected';
956: }
957: $cols[0].='>'.$_.'</option>';
958: }
959: $cols[0].='</select>';
960: } else {
961: $cols[0]='<b><font size=+1>Export</font></b>';
962: }
963: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
964: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
965: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
966: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
967: my $fm=$f{$_.$n};
968: $fm=~s/[\'\"]/\&\#34;/g;
969: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
970: }
971: return @cols;
972: }
973:
974: sub outrow {
975: my $n=shift;
976: my @cols=();
977: if ($n) {
978: $cols[0]=$rowlabel{$f{'A'.$n}};
979: } else {
980: $cols[0]='<b><font size=+1>Export</font></b>';
981: }
982: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
983: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
984: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
985: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
986: my $fm=$f{$_.$n};
987: $fm=~s/[\'\"]/\&\#34;/g;
988: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
989: }
990: return @cols;
991: }
992:
993: sub exportrowa {
994: my @exportarray=();
995: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
996: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
997: push(@exportarray,$sheet_values{$_.'0'});
998: }
999: return @exportarray;
1000: }
1001:
1002: # ------------------------------------------- End of "Inside of the safe space"
1003: ENDDEFS
1004: $safeeval->reval($code);
1005: return $safeeval;
1006: }
1007:
1008: # ------------------------------------------------ Add or change formula values
1009: sub setformulas {
1010: my ($safeeval,%f)=@_;
1011: %{$safeeval->varglob('f')}=%f;
1012: }
1013:
1014: # ------------------------------------------------ Add or change formula values
1015: sub setconstants {
1016: my ($safeeval,%c)=@_;
1017: %{$safeeval->varglob('c')}=%c;
1018: }
1019:
1020: # --------------------------------------------- Set names of other spreadsheets
1021: sub setothersheets {
1022: my ($safeeval,@os)=@_;
1023: @{$safeeval->varglob('os')}=@os;
1024: }
1025:
1026: # ------------------------------------------------ Add or change formula values
1027: sub setrowlabels {
1028: my ($safeeval,%rowlabel)=@_;
1029: %{$safeeval->varglob('rowlabel')}=%rowlabel;
1030: }
1031:
1032: # ------------------------------------------------------- Calculate spreadsheet
1033: sub calcsheet {
1034: my $safeeval=shift;
1035: return $safeeval->reval('&calc();');
1036: }
1037:
1038: # ---------------------------------------------------------------- Get formulas
1039: sub getformulas {
1040: my $safeeval=shift;
1041: return %{$safeeval->varglob('f')};
1042: }
1043:
1044: # ----------------------------------------------------- Get value of $f{'A'.$n}
1045: sub getfa {
1046: my ($safeeval,$n)=@_;
1047: return $safeeval->reval('$f{"A'.$n.'"}');
1048: }
1049:
1050: # ------------------------------------------------------------- Export of A-row
1051: sub exportdata {
1052: my $safeeval=shift;
1053: return $safeeval->reval('&exportrowa()');
1054: }
1055:
1056:
1057: # ========================================================== End of Spreadsheet
1058: # =============================================================================
1059:
1060: #
1061: # Procedures for screen output
1062: #
1063: # --------------------------------------------- Produce output row n from sheet
1064:
1065: sub rown {
1066: my ($safeeval,$n,$sheetdata)=@_;
1067: my $defaultbg;
1068: my $rowdata='';
1069: my $dataflag=0;
1070: unless ($n eq '-') {
1071: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1072: } else {
1073: $defaultbg='#E0FF';
1074: }
1075: unless ($ENV{'form.showcsv'}) {
1076: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1077: } else {
1078: $rowdata.="\n".'"'.$n.'"';
1079: }
1080: my $showf=0;
1081: my $proc;
1082: my $maxred=1;
1083: my $sheettype=$sheetdata->{'sheettype'};
1084: if ($sheettype eq 'studentcalc') {
1085: $proc='&outrowassess';
1086: $maxred=26;
1087: } else {
1088: $proc='&outrow';
1089: }
1090: if ($sheettype eq 'assesscalc') {
1091: $maxred=1;
1092: } else {
1093: $maxred=26;
1094: }
1095: if (&getfa($safeeval,$n)=~/^[\~\-]/) { $maxred=1; }
1096: if ($n eq '-') {
1097: $proc='&templaterow';
1098: $n=-1;
1099: $dataflag=1;
1100: }
1101: foreach ($safeeval->reval($proc.'('.$n.')')) {
1102: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1103: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1104: if ((($vl ne '') || ($vl eq '0')) &&
1105: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1106: if ($showf==0) { $vl=$_; }
1107: unless ($ENV{'form.showcsv'}) {
1108: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1109: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1110: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1111: if ($vl eq '') {
1112: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1113: }
1114: $rowdata.='<td bgcolor='.$bgcolor.'>';
1115: if ($ENV{'request.role'} =~ /^st\./) {
1116: $rowdata.=$vl;
1117: } else {
1118: $rowdata.='<a href="javascript:celledit('.$fm.');">'.
1119: $vl.'</a>';
1120: }
1121: $rowdata.='</td>';
1122: } else {
1123: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1124: }
1125: } else {
1126: $rowdata.=',"'.$vl.'"';
1127: }
1128: $showf++;
1129: } # End of foreach($safeval...)
1130: if ($ENV{'form.showall'} || ($dataflag)) {
1131: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1132: } else {
1133: return '';
1134: }
1135: }
1136:
1137: # ------------------------------------------------------------- Print out sheet
1138:
1139: sub outsheet {
1140: my ($r,$safeeval,$sheetdata)=@_;
1141: my $maxred = 26; # The maximum number of cells to show as
1142: # red (uneditable)
1143: # To make student sheets uneditable could we
1144: # set $maxred = 52?
1145: #
1146: my $realm='Course'; # 'assessment', 'user', or 'course' sheet
1147: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1148: $maxred=1;
1149: $realm='Assessment';
1150: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1151: $maxred=26;
1152: $realm='User';
1153: }
1154: #
1155: # Column label
1156: my $tabledata;
1157: if ($ENV{'form.showcsv'}) {
1158: $tabledata='<pre>';
1159: } else {
1160: $tabledata='<table border=2><tr><th colspan=2 rowspan=2>'.
1161: '<font size=+2>'.$realm.'</font></th>'.
1162: '<td bgcolor=#FFDDDD colspan='.$maxred.
1163: '><b><font size=+1>Import</font></b></td>'.
1164: '<td colspan='.(52-$maxred).
1165: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1166: my $showf=0;
1167: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1168: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1169: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1170: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1171: $showf++;
1172: if ($showf<=$maxred) {
1173: $tabledata.='<td bgcolor="#FFDDDD">';
1174: } else {
1175: $tabledata.='<td>';
1176: }
1177: $tabledata.="<b><font size=+1>$_</font></b></td>";
1178: }
1179: $tabledata.='</tr>'.&rown($safeeval,'-',$sheetdata).
1180: &rown($safeeval,0,$sheetdata);
1181: }
1182: $r->print($tabledata);
1183: #
1184: # Prepare to output rows
1185: my $row;
1186: my $maxrow=$sheetdata->{'maxrow'};
1187: #
1188: my @sortby=();
1189: my @sortidx=();
1190: for ($row=1;$row<=$maxrow;$row++) {
1191: push (@sortby, $safeeval->reval('$f{"A'.$row.'"}'));
1192: push (@sortidx, $row-1);
1193: }
1194: @sortidx=sort { lc($sortby[$a]) cmp lc($sortby[$b]); } @sortidx;
1195: #
1196: # Determine the type of child spreadsheets
1197: my $what='Student';
1198: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1199: $what='Item';
1200: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1201: $what='Assessment';
1202: }
1203: #
1204: # Loop through the rows and output them one at a time
1205: my $n=0;
1206: for ($row=0;$row<$maxrow;$row++) {
1207: my $thisrow=&rown($safeeval,$sortidx[$row]+1,$sheetdata);
1208: if ($thisrow) {
1209: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1210: $r->print("</table>\n<br>\n");
1211: $r->rflush();
1212: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1213: $r->print('<td>'.
1214: join('</td><td>',
1215: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1216: 'abcdefghijklmnopqrstuvwxyz'))).
1217: "</td></tr>\n");
1218: }
1219: $n++;
1220: $r->print($thisrow);
1221: }
1222: }
1223: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1224: }
1225:
1226: #
1227: # ----------------------------------------------- Read list of available sheets
1228: #
1229: sub othersheets {
1230: my ($safeeval,$stype,$sheetdata)=@_;
1231: #
1232: my $cnum = $sheetdata->{'cnum'};
1233: my $cdom = $sheetdata->{'cdom'};
1234: my $chome = $sheetdata->{'chome'};
1235: #
1236: my @alternatives=();
1237: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1238: my ($tmp) = keys(%results);
1239: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1240: @alternatives = sort (keys(%results));
1241: }
1242: return @alternatives;
1243: }
1244:
1245:
1246: #
1247: # -------------------------------------- Parse a spreadsheet
1248: #
1249: sub parse_sheet {
1250: # $sheetxml is a scalar reference or a scalar
1251: my ($sheetxml) = @_;
1252: if (! ref($sheetxml)) {
1253: my $tmp = $sheetxml;
1254: $sheetxml = \$tmp;
1255: }
1256: my %f;
1257: my $parser=HTML::TokeParser->new($sheetxml);
1258: my $token;
1259: while ($token=$parser->get_token) {
1260: if ($token->[0] eq 'S') {
1261: if ($token->[1] eq 'field') {
1262: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1263: $parser->get_text('/field');
1264: }
1265: if ($token->[1] eq 'template') {
1266: $f{'template_'.$token->[2]->{'col'}}=
1267: $parser->get_text('/template');
1268: }
1269: }
1270: }
1271: return \%f;
1272: }
1273:
1274: #
1275: # -------------------------------------- Read spreadsheet formulas for a course
1276: #
1277: sub readsheet {
1278: my ($safeeval,$sheetdata,$fn)=@_;
1279: #
1280: my $stype = $sheetdata->{'sheettype'};
1281: my $cnum = $sheetdata->{'cnum'};
1282: my $cdom = $sheetdata->{'cdom'};
1283: my $chome = $sheetdata->{'chome'};
1284: #
1285: if (! defined($fn)) {
1286: # There is no filename. Look for defaults in course and global, cache
1287: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1288: my %tmphash = &Apache::lonnet::get('environment',
1289: ['spreadsheet_default_'.$stype],
1290: $cdom,$cnum);
1291: my ($tmp) = keys(%tmphash);
1292: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1293: $fn = 'default_'.$stype;
1294: } else {
1295: $fn = $tmphash{'spreadsheet_default_'.$stype};
1296: }
1297: unless (($fn) && ($fn!~/^error\:/)) {
1298: $fn='default_'.$stype;
1299: }
1300: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1301: }
1302: }
1303: # $fn now has a value
1304: $sheetdata->{'filename'} = $fn;
1305: # see if sheet is cached
1306: my $fstring='';
1307: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1308: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1309: } else {
1310: # Not cached, need to read
1311: my %f=();
1312: if ($fn=~/^default\_/) {
1313: my $sheetxml='';
1314: my $fh;
1315: my $dfn=$fn;
1316: $dfn=~s/\_/\./g;
1317: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1318: $sheetxml=join('',<$fh>);
1319: } else {
1320: $sheetxml='<field row="0" col="A">"Error"</field>';
1321: }
1322: %f=%{&parse_sheet(\$sheetxml)};
1323: } elsif($fn=~/\/*\.spreadsheet$/) {
1324: my $sheetxml=&Apache::lonnet::getfile
1325: (&Apache::lonnet::filelocation('',$fn));
1326: if ($sheetxml == -1) {
1327: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1328: .$fn.'"</field>';
1329: }
1330: %f=%{&parse_sheet(\$sheetxml)};
1331: } else {
1332: my $sheet='';
1333: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1334: my ($tmp) = keys(%tmphash);
1335: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1336: foreach (keys(%tmphash)) {
1337: $f{$_}=$tmphash{$_};
1338: }
1339: }
1340: }
1341: # Cache and set
1342: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1343: &setformulas($safeeval,%f);
1344: }
1345: }
1346:
1347: # -------------------------------------------------------- Make new spreadsheet
1348: sub makenewsheet {
1349: my ($uname,$udom,$stype,$usymb)=@_;
1350: my %sheetdata=();
1351: $sheetdata{'uname'} = $uname;
1352: $sheetdata{'udom'} = $udom;
1353: $sheetdata{'sheettype'} = $stype;
1354: $sheetdata{'usymb'} = $usymb;
1355: $sheetdata{'cid'} = $ENV{'request.course.id'};
1356: $sheetdata{'csec'} = $Section{$uname.':'.$udom};
1357: $sheetdata{'coursefilename'} = $ENV{'request.course.fn'};
1358: $sheetdata{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1359: $sheetdata{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1360: $sheetdata{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1361: $sheetdata{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1362:
1363: my $safeeval=initsheet($stype);
1364: #
1365: # Place all the %sheetdata items into the safe space
1366: my $initstring = '';
1367: foreach (keys(%sheetdata)) {
1368: $initstring.= qq{\$$_="$sheetdata{$_}";};
1369: }
1370: $safeeval->reval($initstring);
1371: return $safeeval,\%sheetdata;
1372: }
1373:
1374: # ------------------------------------------------------------ Save spreadsheet
1375: sub writesheet {
1376: my ($safeeval,$makedef,$sheetdata)=@_;
1377: my $cid=$sheetdata->{'cid'};
1378: if (&Apache::lonnet::allowed('opa',$cid)) {
1379: my %f=&getformulas($safeeval);
1380: my $stype= $sheetdata->{'sheettype'};
1381: my $cnum = $sheetdata->{'cnum'};
1382: my $cdom = $sheetdata->{'cdom'};
1383: my $chome= $sheetdata->{'chome'};
1384: my $fn = $sheetdata->{'filename'};
1385: # Cache new sheet
1386: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1387: # Write sheet
1388: my $sheetdata='';
1389: foreach (keys(%f)) {
1390: unless ($f{$_} eq 'import') {
1391: $sheetdata.=&Apache::lonnet::escape($_).'='.
1392: &Apache::lonnet::escape($f{$_}).'&';
1393: }
1394: }
1395: $sheetdata=~s/\&$//;
1396: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1397: $sheetdata,$chome);
1398: if ($reply eq 'ok') {
1399: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1400: $stype.'_spreadsheets:'.
1401: &Apache::lonnet::escape($fn).
1402: '='.$ENV{'user.name'}.'@'.
1403: $ENV{'user.domain'},
1404: $chome);
1405: if ($reply eq 'ok') {
1406: if ($makedef) {
1407: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1408: ':environment:'.
1409: 'spreadsheet_default_'.
1410: $stype.'='.
1411: &Apache::lonnet::escape($fn),
1412: $chome);
1413: }
1414: return $reply;
1415: }
1416: return $reply;
1417: }
1418: return $reply;
1419: }
1420: return 'unauthorized';
1421: }
1422:
1423: # ----------------------------------------------- Make a temp copy of the sheet
1424: # "Modified workcopy" - interactive only
1425: #
1426: sub tmpwrite {
1427: my ($safeeval,$sheetdata) = @_;
1428: my $fn=$ENV{'user.name'}.'_'.
1429: $ENV{'user.domain'}.'_spreadsheet_'.$sheetdata->{'usymb'}.'_'.
1430: $sheetdata->{'filename'};
1431: $fn=~s/\W/\_/g;
1432: $fn=$tmpdir.$fn.'.tmp';
1433: my $fh;
1434: if ($fh=Apache::File->new('>'.$fn)) {
1435: print $fh join("\n",&getformulas($safeeval));
1436: }
1437: }
1438:
1439: # ---------------------------------------------------------- Read the temp copy
1440: sub tmpread {
1441: my ($safeeval,$sheetdata,$nfield,$nform)=@_;
1442: my $fn=$ENV{'user.name'}.'_'.
1443: $ENV{'user.domain'}.'_spreadsheet_'.$sheetdata->{'usymb'}.'_'.
1444: $sheetdata->{'filename'};
1445: $fn=~s/\W/\_/g;
1446: $fn=$tmpdir.$fn.'.tmp';
1447: my $fh;
1448: my %fo=();
1449: my $countrows=0;
1450: if ($fh=Apache::File->new($fn)) {
1451: my $name;
1452: while ($name=<$fh>) {
1453: chomp($name);
1454: my $value=<$fh>;
1455: chomp($value);
1456: $fo{$name}=$value;
1457: if ($name=~/^A(\d+)$/) {
1458: if ($1>$countrows) {
1459: $countrows=$1;
1460: }
1461: }
1462: }
1463: }
1464: if ($nform eq 'changesheet') {
1465: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1466: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1467: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1468: }
1469: } elsif ($nfield eq 'insertrow') {
1470: $countrows++;
1471: my $newrow=substr('000000'.$countrows,-7);
1472: if ($nform eq 'top') {
1473: $fo{'A'.$countrows}='--- '.$newrow;
1474: } else {
1475: $fo{'A'.$countrows}='~~~ '.$newrow;
1476: }
1477: } else {
1478: if ($nfield) { $fo{$nfield}=$nform; }
1479: }
1480: &setformulas($safeeval,%fo);
1481: }
1482:
1483: ##################################################
1484: ##################################################
1485:
1486: =pod
1487:
1488: =item &parmval()
1489:
1490: Determine the value of a parameter.
1491:
1492: Inputs: $what, the parameter needed, $safeeval, the safe space
1493:
1494: Returns: The value of a parameter, or '' if none.
1495:
1496: This function cascades through the possible levels searching for a value for
1497: a parameter. The levels are checked in the following order:
1498: user, course (at section level and course level), map, and lonnet::metadata.
1499: This function uses %parmhash, which must be tied prior to calling it.
1500: This function also requires %courseopt and %useropt to be initialized for
1501: this user and course.
1502:
1503: =cut
1504:
1505: ##################################################
1506: ##################################################
1507: sub parmval {
1508: my ($what,$safeeval,$sheetdata)=@_;
1509: my $symb = $sheetdata->{'usymb'};
1510: unless ($symb) { return ''; }
1511: #
1512: my $cid = $sheetdata->{'cid'};
1513: my $csec = $sheetdata->{'csec'};
1514: my $uname = $sheetdata->{'uname'};
1515: my $udom = $sheetdata->{'udom'};
1516: my $result='';
1517: #
1518: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1519: # Cascading lookup scheme
1520: my $rwhat=$what;
1521: $what =~ s/^parameter\_//;
1522: $what =~ s/\_([^\_]+)$/\.$1/;
1523: #
1524: my $symbparm = $symb.'.'.$what;
1525: my $mapparm = $mapname.'___(all).'.$what;
1526: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
1527: #
1528: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
1529: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
1530: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
1531: #
1532: my $courselevel = $usercourseprefix.'.'.$what;
1533: my $courselevelr = $usercourseprefix.'.'.$symbparm;
1534: my $courselevelm = $usercourseprefix.'.'.$mapparm;
1535: # fourth, check user
1536: if (defined($uname)) {
1537: return $useropt{$courselevelr} if (defined($useropt{$courselevelr}));
1538: return $useropt{$courselevelm} if (defined($useropt{$courselevelm}));
1539: return $useropt{$courselevel} if (defined($useropt{$courselevel}));
1540: }
1541: # third, check course
1542: if (defined($csec)) {
1543: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
1544: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
1545: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
1546: }
1547: #
1548: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
1549: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
1550: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
1551: # second, check map parms
1552: my $thisparm = $parmhash{$symbparm};
1553: return $thisparm if (defined($thisparm));
1554: # first, check default
1555: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1556: }
1557:
1558: # ---------------------------------------------- Update rows for course listing
1559: sub updateclasssheet {
1560: my ($safeeval,$sheetdata) = @_;
1561: my $cnum =$sheetdata->{'cnum'};
1562: my $cdom =$sheetdata->{'cdom'};
1563: my $cid =$sheetdata->{'cid'};
1564: my $chome =$sheetdata->{'chome'};
1565: #
1566: %Section = ();
1567:
1568: #
1569: # Read class list and row labels
1570: my %classlist;
1571: my @tmp = &Apache::lonnet::dump('classlist',$cdom,$cnum);
1572: if ($tmp[0] !~ /^error/) {
1573: %classlist = @tmp;
1574: } else {
1575: return 'Could not access course data';
1576: }
1577: undef @tmp;
1578: #
1579: my %currentlist=();
1580: my $now=time;
1581: foreach my $student (keys(%classlist)) {
1582: my ($end,$start)=split(/\:/,$classlist{$student});
1583: my $active=1;
1584: $active = 0 if (($end) && ($now>$end));
1585: $active = 1 if ($ENV{'form.Status'} eq 'Any');
1586: $active = !$active if ($ENV{'form.Status'} eq 'Expired');
1587: if ($active) {
1588: my $rowlabel='';
1589: my ($studentName,$studentDomain)=split(/\:/,$student);
1590: my $studentSection=&Apache::lonnet::usection($studentDomain,
1591: $studentName,$cid);
1592: $Section{$studentName.':'.$studentDomain} = $studentSection;
1593: # if ($studentSection==-1) {
1594: # unless ($ENV{'form.showcsv'}) {
1595: # $rowlabel='<font color=red>Data not available: '.
1596: # $studentName.'</font>';
1597: # } else {
1598: # $rowlabel='ERROR","'.$studentName.
1599: # '","Data not available","","","';
1600: # }
1601: # } else {
1602: my %reply=&Apache::lonnet::idrget($studentDomain,$studentName);
1603: my %studentInformation=&Apache::lonnet::get
1604: ('environment',
1605: ['lastname','generation','firstname','middlename','id'],
1606: $studentDomain,$studentName);
1607: if (! $ENV{'form.showcsv'}) {
1608: $rowlabel='<a href="/adm/studentcalc?uname='.$studentName.
1609: '&udom='.$studentDomain.'">'.
1610: $studentSection.' ';
1611: foreach ('id','firstname','middlename',
1612: 'lastname','generation'){
1613: $rowlabel.=$studentInformation{$_}." ";
1614: }
1615: $rowlabel.='</a>';
1616: } else {
1617: $rowlabel= '"'.join('","',
1618: ($studentSection,
1619: $studentInformation{'id'},
1620: $studentInformation{'firstname'},
1621: $studentInformation{'middlename'},
1622: $studentInformation{'lastname'},
1623: $studentInformation{'generation'})
1624: ).'"';
1625: }
1626: # }
1627: $currentlist{$student}=$rowlabel;
1628: } # end of if ($active)
1629: } # end of foreach my $student (keys(%classlist))
1630: #
1631: # Find discrepancies between the course row table and this
1632: #
1633: my %f=&getformulas($safeeval);
1634: my $changed=0;
1635: #
1636: my $maxrow=0;
1637: my %existing=();
1638: #
1639: # Now obsolete rows
1640: foreach (keys(%f)) {
1641: if ($_=~/^A(\d+)/) {
1642: $maxrow=($1>$maxrow)?$1:$maxrow;
1643: $existing{$f{$_}}=1;
1644: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1645: ($f{$_}=~/^(\~\~\~|\-\-\-)/)) {
1646: $f{$_}='!!! Obsolete';
1647: $changed=1;
1648: }
1649: }
1650: }
1651: #
1652: # New and unknown keys
1653: foreach (sort keys(%currentlist)) {
1654: unless ($existing{$_}) {
1655: $changed=1;
1656: $maxrow++;
1657: $f{'A'.$maxrow}=$_;
1658: }
1659: }
1660: if ($changed) { &setformulas($safeeval,%f); }
1661: #
1662: $sheetdata->{'maxrow'} = $maxrow;
1663: &setrowlabels($safeeval,%currentlist);
1664: }
1665:
1666: # ----------------------------------- Update rows for student and assess sheets
1667: sub updatestudentassesssheet {
1668: my ($safeeval,$sheetdata) = @_;
1669: my %bighash;
1670: my $stype=$sheetdata->{'sheettype'};
1671: my $uname=$sheetdata->{'uname'};
1672: my $udom =$sheetdata->{'udom'};
1673: my %current=();
1674: if ($updatedata
1675: {$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}) {
1676: %current=split(/\_\_\_\;\_\_\_/,
1677: $updatedata{$ENV{'request.course.fn'}.
1678: '_'.$stype.'_'.$uname.'_'.$udom});
1679: } else {
1680: # Tie hash
1681: tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1682: &GDBM_READER(),0640);
1683: if (! tied(%bighash)) {
1684: return 'Could not access course data';
1685: }
1686: # Get all assessments
1687: my %allkeys=('timestamp' =>
1688: 'Timestamp of Last Transaction<br>timestamp',
1689: 'subnumber' =>
1690: 'Number of Submissions<br>subnumber',
1691: 'tutornumber' =>
1692: 'Number of Tutor Responses<br>tutornumber',
1693: 'totalpoints' =>
1694: 'Total Points Granted<br>totalpoints');
1695: my $adduserstr='';
1696: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})){
1697: $adduserstr='&uname='.$uname.'&udom='.$udom;
1698: }
1699: my %allassess =
1700: ('_feedback' =>'<a href="/adm/assesscalc?usymb=_feedback'.
1701: $adduserstr.'">Feedback</a>',
1702: '_evaluation' =>'<a href="/adm/assesscalc?usymb=_evaluation'.
1703: $adduserstr.'">Evaluation</a>',
1704: '_tutoring' =>'<a href="/adm/assesscalc?usymb=_tutoring'.
1705: $adduserstr.'">Tutoring</a>',
1706: '_discussion' =>'<a href="/adm/assesscalc?usymb=_discussion'.
1707: $adduserstr.'">Discussion</a>'
1708: );
1709: while (($_,undef) = each(%bighash)) {
1710: next if ($_!~/^src\_(\d+)\.(\d+)$/);
1711: my $mapid=$1;
1712: my $resid=$2;
1713: my $id=$mapid.'.'.$resid;
1714: my $srcf=$bighash{$_};
1715: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1716: my $symb=
1717: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1718: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
1719: $allassess{$symb}=
1720: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1721: $bighash{'title_'.$id}.'</a>';
1722: next if ($stype ne 'assesscalc');
1723: foreach my $key (split(/\,/,
1724: &Apache::lonnet::metadata($srcf,'keys')
1725: )) {
1726: next if ($key !~ /^(stores|parameter)_/);
1727: my $display=
1728: &Apache::lonnet::metadata($srcf,$key.'.display');
1729: unless ($display) {
1730: $display.=
1731: &Apache::lonnet::metadata($srcf,$key.'.name');
1732: }
1733: $display.='<br>'.$key;
1734: $allkeys{$key}=$display;
1735: } # end of foreach
1736: }
1737: } # end of foreach (keys(%bighash))
1738: untie(%bighash);
1739: #
1740: # %allkeys has a list of storage and parameter displays by unikey
1741: # %allassess has a list of all resource displays by symb
1742: #
1743: if ($stype eq 'assesscalc') {
1744: %current=%allkeys;
1745: } elsif ($stype eq 'studentcalc') {
1746: %current=%allassess;
1747: }
1748: $updatedata{$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}=
1749: join('___;___',%current);
1750: # Get current from cache
1751: }
1752: # Find discrepancies between the course row table and this
1753: #
1754: my %f=&getformulas($safeeval);
1755: my $changed=0;
1756:
1757: my $maxrow=0;
1758: my %existing=();
1759: # Now obsolete rows
1760: foreach (keys(%f)) {
1761: next if ($_!~/^A(\d+)/);
1762: $maxrow=($1>$maxrow)?$1:$maxrow;
1763: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1764: $existing{$usy}=1;
1765: unless ((defined($current{$usy})) || (!$1) ||
1766: ($f{$_}=~/^(\~\~\~|\-\-\-)/)){
1767: $f{$_}='!!! Obsolete';
1768: $changed=1;
1769: } elsif ($ufn) {
1770: $current{$usy}
1771: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1772: }
1773: }
1774: # New and unknown keys
1775: foreach (keys(%current)) {
1776: unless ($existing{$_}) {
1777: $changed=1;
1778: $maxrow++;
1779: $f{'A'.$maxrow}=$_;
1780: }
1781: }
1782: if ($changed) { &setformulas($safeeval,%f); }
1783: $sheetdata->{'maxrow'} = $maxrow;
1784: &setrowlabels($safeeval,%current);
1785: #
1786: undef %current;
1787: undef %existing;
1788: }
1789:
1790: # ------------------------------------------------ Load data for one assessment
1791:
1792: sub loadstudent {
1793: my ($safeeval,$sheetdata)=@_;
1794: my %c=();
1795: my %f=&getformulas($safeeval);
1796: $cachedassess=$sheetdata->{'uname'}.':'.$sheetdata->{'udom'};
1797: # Get ALL the student preformance data
1798: my @tmp = &Apache::lonnet::dump($sheetdata->{'cid'},
1799: $sheetdata->{'udom'},
1800: $sheetdata->{'uname'},
1801: undef);
1802: if ($tmp[0] !~ /^error:/) {
1803: %cachedstores = @tmp;
1804: }
1805: undef @tmp;
1806: #
1807: my @assessdata=();
1808: foreach (keys(%f)) {
1809: next if ($_!~/^A(\d+)/);
1810: my $row=$1;
1811: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1812: my ($usy,$ufn)=split(/__&&&\__/,$f{$_});
1813: @assessdata=&exportsheet($sheetdata->{'uname'},
1814: $sheetdata->{'udom'},
1815: 'assesscalc',$usy,$ufn);
1816: my $index=0;
1817: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1818: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1819: if ($assessdata[$index]) {
1820: my $col=$_;
1821: if ($assessdata[$index]=~/\D/) {
1822: $c{$col.$row}="'".$assessdata[$index]."'";
1823: } else {
1824: $c{$col.$row}=$assessdata[$index];
1825: }
1826: unless ($col eq 'A') {
1827: $f{$col.$row}='import';
1828: }
1829: }
1830: $index++;
1831: }
1832: }
1833: $cachedassess='';
1834: undef %cachedstores;
1835: &setformulas($safeeval,%f);
1836: &setconstants($safeeval,%c);
1837: }
1838:
1839: # --------------------------------------------------- Load data for one student
1840: #
1841: sub loadcourse {
1842: my ($safeeval,$sheetdata,$r)=@_;
1843: my %c=();
1844: my %f=&getformulas($safeeval);
1845: my $total=0;
1846: foreach (keys(%f)) {
1847: if ($_=~/^A(\d+)/) {
1848: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1849: }
1850: }
1851: my $now=0;
1852: my $since=time;
1853: $r->print(<<ENDPOP);
1854: <script>
1855: popwin=open('','popwin','width=400,height=100');
1856: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1857: '<h3>Spreadsheet Calculation Progress</h3>'+
1858: '<form name=popremain>'+
1859: '<input type=text size=35 name=remaining value=Starting></form>'+
1860: '</body></html>');
1861: popwin.document.close();
1862: </script>
1863: ENDPOP
1864: $r->rflush();
1865: foreach (keys(%f)) {
1866: next if ($_!~/^A(\d+)/);
1867: my $row=$1;
1868: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1869: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1870: 'studentcalc');
1871: undef %userrdatas;
1872: $now++;
1873: $r->print('<script>popwin.document.popremain.remaining.value="'.
1874: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1875: ' secs remaining";</script>');
1876: $r->rflush();
1877: #
1878: my $index=0;
1879: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1880: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1881: if ($studentdata[$index]) {
1882: my $col=$_;
1883: if ($studentdata[$index]=~/\D/) {
1884: $c{$col.$row}="'".$studentdata[$index]."'";
1885: } else {
1886: $c{$col.$row}=$studentdata[$index];
1887: }
1888: unless ($col eq 'A') {
1889: $f{$col.$row}='import';
1890: }
1891: $index++;
1892: }
1893: }
1894: }
1895: &setformulas($safeeval,%f);
1896: &setconstants($safeeval,%c);
1897: $r->print('<script>popwin.close()</script>');
1898: $r->rflush();
1899: }
1900:
1901: # ------------------------------------------------ Load data for one assessment
1902: #
1903: sub loadassessment {
1904: my ($safeeval,$sheetdata)=@_;
1905:
1906: my $uhome = $sheetdata->{'uhome'};
1907: my $uname = $sheetdata->{'uname'};
1908: my $udom = $sheetdata->{'udom'};
1909: my $symb = $sheetdata->{'usymb'};
1910: my $cid = $sheetdata->{'cid'};
1911: my $cnum = $sheetdata->{'cnum'};
1912: my $cdom = $sheetdata->{'cdom'};
1913: my $chome = $sheetdata->{'chome'};
1914:
1915: my $namespace;
1916: unless ($namespace=$cid) { return ''; }
1917: # Get stored values
1918: my %returnhash=();
1919: if ($cachedassess eq $uname.':'.$udom) {
1920: #
1921: # get data out of the dumped stores
1922: #
1923: my $version=$cachedstores{'version:'.$symb};
1924: my $scope;
1925: for ($scope=1;$scope<=$version;$scope++) {
1926: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1927: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1928: }
1929: }
1930: } else {
1931: #
1932: # restore individual
1933: #
1934: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
1935: for (my $version=1;$version<=$returnhash{'version'};$version++) {
1936: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1937: $returnhash{$_}=$returnhash{$version.':'.$_};
1938: }
1939: }
1940: }
1941: #
1942: # returnhash now has all stores for this resource
1943: # convert all "_" to "." to be able to use libraries, multiparts, etc
1944: #
1945: # This is dumb. It is also necessary :(
1946: my @oldkeys=keys %returnhash;
1947: #
1948: foreach my $name (@oldkeys) {
1949: my $value=$returnhash{$name};
1950: delete $returnhash{$name};
1951: $name=~s/\_/\./g;
1952: $returnhash{$name}=$value;
1953: }
1954: # initialize coursedata and userdata for this user
1955: undef %courseopt;
1956: undef %useropt;
1957:
1958: my $userprefix=$uname.'_'.$udom.'_';
1959:
1960: unless ($uhome eq 'no_host') {
1961: # Get coursedata
1962: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
1963: my %Tmp = &Apache::lonnet::dump('resourcedata',$cdom,$cnum);
1964: $courserdatas{$cid}=\%Tmp;
1965: $courserdatas{$cid.'.last_cache'}=time;
1966: }
1967: while (my ($name,$value) = each(%{$courserdatas{$cid}})) {
1968: $courseopt{$userprefix.$name}=$value;
1969: }
1970: # Get userdata (if present)
1971: unless ((time-$userrdatas{$uname.'@'.$udom.'.last_cache'})<240) {
1972: my %Tmp = &Apache::lonnet::dump('resourcedata',$udom,$uname);
1973: $userrdatas{$cid} = \%Tmp;
1974: # Most of the time the user does not have a 'resourcedata.db'
1975: # file. We need to cache that we got nothing instead of bothering
1976: # with requesting it every time.
1977: $userrdatas{$uname.'@'.$udom.'.last_cache'}=time;
1978: }
1979: while (my ($name,$value) = each(%{$userrdatas{$cid}})) {
1980: $useropt{$userprefix.$name}=$value;
1981: }
1982: }
1983: # now courseopt, useropt initialized for this user and course
1984: # (used by parmval)
1985: #
1986: # Load keys for this assessment only
1987: #
1988: my %thisassess=();
1989: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1990: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
1991: $thisassess{$_}=1;
1992: }
1993: #
1994: # Load parameters
1995: #
1996: my %c=();
1997: if (tie(%parmhash,'GDBM_File',
1998: $sheetdata->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
1999: my %f=&getformulas($safeeval);
2000: foreach (keys(%f)) {
2001: next if ($_!~/^A/);
2002: next if ($f{$_}=~/^[\!\~\-]/);
2003: if ($f{$_}=~/^parameter/) {
2004: if ($thisassess{$f{$_}}) {
2005: my $val=&parmval($f{$_},$safeeval,$sheetdata);
2006: $c{$_}=$val;
2007: $c{$f{$_}}=$val;
2008: }
2009: } else {
2010: my $key=$f{$_};
2011: my $ckey=$key;
2012: $key=~s/^stores\_/resource\./;
2013: $key=~s/\_/\./g;
2014: $c{$_}=$returnhash{$key};
2015: $c{$ckey}=$returnhash{$key};
2016: }
2017: }
2018: untie(%parmhash);
2019: }
2020: &setconstants($safeeval,%c);
2021: }
2022:
2023: # --------------------------------------------------------- Various form fields
2024:
2025: sub textfield {
2026: my ($title,$name,$value)=@_;
2027: return "\n<p><b>$title:</b><br>".
2028: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2029: }
2030:
2031: sub hiddenfield {
2032: my ($name,$value)=@_;
2033: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2034: }
2035:
2036: sub selectbox {
2037: my ($title,$name,$value,%options)=@_;
2038: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2039: foreach (sort keys(%options)) {
2040: $selout.='<option value="'.$_.'"';
2041: if ($_ eq $value) { $selout.=' selected'; }
2042: $selout.='>'.$options{$_}.'</option>';
2043: }
2044: return $selout.'</select>';
2045: }
2046:
2047: # =============================================== Update information in a sheet
2048: #
2049: # Add new users or assessments, etc.
2050: #
2051:
2052: sub updatesheet {
2053: my ($safeeval,$sheetdata)=@_;
2054: my $stype=$sheetdata->{'sheettype'};
2055: if ($stype eq 'classcalc') {
2056: return &updateclasssheet($safeeval,$sheetdata);
2057: } else {
2058: return &updatestudentassesssheet($safeeval,$sheetdata);
2059: }
2060: }
2061:
2062: # =================================================== Load the rows for a sheet
2063: #
2064: # Import the data for rows
2065: #
2066:
2067: sub loadrows {
2068: my ($safeeval,$sheetdata,$r)=@_;
2069: my $stype=$sheetdata->{'sheettype'};
2070: if ($stype eq 'classcalc') {
2071: &loadcourse($safeeval,$sheetdata,$r);
2072: } elsif ($stype eq 'studentcalc') {
2073: &loadstudent($safeeval,$sheetdata);
2074: } else {
2075: &loadassessment($safeeval,$sheetdata);
2076: }
2077: }
2078:
2079: # ======================================================= Forced recalculation?
2080:
2081: sub checkthis {
2082: my ($keyname,$time)=@_;
2083: return ($time<$expiredates{$keyname});
2084: }
2085:
2086: sub forcedrecalc {
2087: my ($uname,$udom,$stype,$usymb)=@_;
2088: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2089: my $time=$oldsheets{$key.'.time'};
2090: if ($ENV{'form.forcerecalc'}) { return 1; }
2091: unless ($time) { return 1; }
2092: if ($stype eq 'assesscalc') {
2093: my $map=(split(/\_\_\_/,$usymb))[0];
2094: if (&checkthis('::assesscalc:',$time) ||
2095: &checkthis('::assesscalc:'.$map,$time) ||
2096: &checkthis('::assesscalc:'.$usymb,$time) ||
2097: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2098: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2099: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2100: return 1;
2101: }
2102: } else {
2103: if (&checkthis('::studentcalc:',$time) ||
2104: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2105: return 1;
2106: }
2107: }
2108: return 0;
2109: }
2110:
2111: # ============================================================== Export handler
2112: #
2113: # Non-interactive call from with program
2114: #
2115:
2116: sub exportsheet {
2117: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2118: my @exportarr=();
2119: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2120: $fn='default_'.$1;
2121: }
2122: #
2123: # Check if cached
2124: #
2125: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2126: my $found='';
2127: if ($oldsheets{$key}) {
2128: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2129: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2130: if ($name eq $fn) {
2131: $found=$value;
2132: }
2133: }
2134: }
2135: unless ($found) {
2136: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2137: if ($oldsheets{$key}) {
2138: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2139: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2140: if ($name eq $fn) {
2141: $found=$value;
2142: }
2143: }
2144: }
2145: }
2146: #
2147: # Check if still valid
2148: #
2149: if ($found) {
2150: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2151: $found='';
2152: }
2153: }
2154: if ($found) {
2155: #
2156: # Return what was cached
2157: #
2158: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2159: } else {
2160: #
2161: # Not cached
2162: #
2163: my ($thissheet,$sheetdata)=&makenewsheet($uname,$udom,$stype,$usymb);
2164: &readsheet($thissheet,$sheetdata,$fn);
2165: &updatesheet($thissheet,$sheetdata);
2166: &loadrows($thissheet,$sheetdata);
2167: &calcsheet($thissheet);
2168: @exportarr=&exportdata($thissheet);
2169: #
2170: # Store now
2171: #
2172: my $cid=$ENV{'request.course.id'};
2173: my $current='';
2174: if ($stype eq 'studentcalc') {
2175: $current=&Apache::lonnet::reply('get:'.
2176: $ENV{'course.'.$cid.'.domain'}.':'.
2177: $ENV{'course.'.$cid.'.num'}.
2178: ':nohist_calculatedsheets:'.
2179: &Apache::lonnet::escape($key),
2180: $ENV{'course.'.$cid.'.home'});
2181: } else {
2182: $current=&Apache::lonnet::reply('get:'.$sheetdata->{'udom'}.':'.
2183: $sheetdata->{'uname'}.
2184: ':nohist_calculatedsheets_'.
2185: $ENV{'request.course.id'}.':'.
2186: &Apache::lonnet::escape($key),
2187: $sheetdata->{'uhome'});
2188: }
2189: my %currentlystored=();
2190: unless ($current=~/^error\:/) {
2191: foreach (split(/___&\___/,&Apache::lonnet::unescape($current))) {
2192: my ($name,$value)=split(/___=___/,$_);
2193: $currentlystored{$name}=$value;
2194: }
2195: }
2196: $currentlystored{$fn}=join('___;___',@exportarr);
2197: #
2198: my $newstore='';
2199: foreach (keys(%currentlystored)) {
2200: if ($newstore) { $newstore.='___&___'; }
2201: $newstore.=$_.'___=___'.$currentlystored{$_};
2202: }
2203: my $now=time;
2204: if ($stype eq 'studentcalc') {
2205: &Apache::lonnet::reply('put:'.
2206: $ENV{'course.'.$cid.'.domain'}.':'.
2207: $ENV{'course.'.$cid.'.num'}.
2208: ':nohist_calculatedsheets:'.
2209: &Apache::lonnet::escape($key).'='.
2210: &Apache::lonnet::escape($newstore).'&'.
2211: &Apache::lonnet::escape($key).'.time='.$now,
2212: $ENV{'course.'.$cid.'.home'});
2213: } else {
2214: &Apache::lonnet::reply('put:'.
2215: $sheetdata->{'udom'}.':'.
2216: $sheetdata->{'uname'}.
2217: ':nohist_calculatedsheets_'.
2218: $ENV{'request.course.id'}.':'.
2219: &Apache::lonnet::escape($key).'='.
2220: &Apache::lonnet::escape($newstore).'&'.
2221: &Apache::lonnet::escape($key).'.time='.$now,
2222: $sheetdata->{'uhome'});
2223: }
2224: }
2225: return @exportarr;
2226: }
2227:
2228: # ============================================================ Expiration Dates
2229: #
2230: # Load previously cached student spreadsheets for this course
2231: #
2232: sub expirationdates {
2233: undef %expiredates;
2234: my $cid=$ENV{'request.course.id'};
2235: my $reply=&Apache::lonnet::reply('dump:'.
2236: $ENV{'course.'.$cid.'.domain'}.':'.
2237: $ENV{'course.'.$cid.'.num'}.
2238: ':nohist_expirationdates',
2239: $ENV{'course.'.$cid.'.home'});
2240: unless ($reply=~/^error\:/) {
2241: foreach (split(/\&/,$reply)) {
2242: my ($name,$value)=split(/\=/,$_);
2243: $expiredates{&Apache::lonnet::unescape($name)}
2244: =&Apache::lonnet::unescape($value);
2245: }
2246: }
2247: }
2248:
2249: # ===================================================== Calculated sheets cache
2250: #
2251: # Load previously cached student spreadsheets for this course
2252: #
2253:
2254: sub cachedcsheets {
2255: my $cid=$ENV{'request.course.id'};
2256: my $reply=&Apache::lonnet::reply('dump:'.
2257: $ENV{'course.'.$cid.'.domain'}.':'.
2258: $ENV{'course.'.$cid.'.num'}.
2259: ':nohist_calculatedsheets',
2260: $ENV{'course.'.$cid.'.home'});
2261: unless ($reply=~/^error\:/) {
2262: foreach ( split(/\&/,$reply)) {
2263: my ($name,$value)=split(/\=/,$_);
2264: $oldsheets{&Apache::lonnet::unescape($name)}
2265: =&Apache::lonnet::unescape($value);
2266: }
2267: }
2268: }
2269:
2270: # ===================================================== Calculated sheets cache
2271: #
2272: # Load previously cached assessment spreadsheets for this student
2273: #
2274:
2275: sub cachedssheets {
2276: my ($sname,$sdom,$shome)=@_;
2277: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2278: my $cid=$ENV{'request.course.id'};
2279: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2280: ':nohist_calculatedsheets_'.
2281: $ENV{'request.course.id'},
2282: $shome);
2283: unless ($reply=~/^error\:/) {
2284: foreach ( split(/\&/,$reply)) {
2285: my ($name,$value)=split(/\=/,$_);
2286: $oldsheets{&Apache::lonnet::unescape($name)}
2287: =&Apache::lonnet::unescape($value);
2288: }
2289: }
2290: $loadedcaches{$sname.'_'.$sdom}=1;
2291: }
2292: }
2293:
2294: # ===================================================== Calculated sheets cache
2295: #
2296: # Load previously cached assessment spreadsheets for this student
2297: #
2298:
2299: # ================================================================ Main handler
2300: #
2301: # Interactive call to screen
2302: #
2303: #
2304: sub handler {
2305: my $r=shift;
2306:
2307: # Check this server
2308: my $loaderror=&Apache::lonnet::overloaderror($r);
2309: if ($loaderror) { return $loaderror; }
2310: # Check the course homeserver
2311: $loaderror= &Apache::lonnet::overloaderror($r,
2312: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
2313: if ($loaderror) { return $loaderror; }
2314:
2315: if ($r->header_only) {
2316: $r->content_type('text/html');
2317: $r->send_http_header;
2318: return OK;
2319: }
2320: # Global directory configs
2321: $includedir = $r->dir_config('lonIncludes');
2322: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
2323: # Needs to be in a course
2324: if (! $ENV{'request.course.fn'}) {
2325: # Not in a course, or not allowed to modify parms
2326: $ENV{'user.error.msg'}=
2327: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2328: return HTTP_NOT_ACCEPTABLE;
2329: }
2330: # Get query string for limited number of parameters
2331: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2332: ['uname','udom','usymb','ufn']);
2333: if ($ENV{'request.role'} =~ /^st\./) {
2334: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
2335: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
2336: }
2337: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2338: $ENV{'form.ufn'}='default_'.$1;
2339: }
2340: # Interactive loading of specific sheet?
2341: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2342: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2343: }
2344: #
2345: # Determine the user name and domain for the sheet.
2346: my $aname;
2347: my $adom;
2348: unless ($ENV{'form.uname'}) {
2349: $aname=$ENV{'user.name'};
2350: $adom=$ENV{'user.domain'};
2351: } else {
2352: $aname=$ENV{'form.uname'};
2353: $adom=$ENV{'form.udom'};
2354: }
2355: #
2356: # Open page
2357: $r->content_type('text/html');
2358: $r->header_out('Cache-control','no-cache');
2359: $r->header_out('Pragma','no-cache');
2360: $r->send_http_header;
2361: # Screen output
2362: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2363: if ($ENV{'request.role'} !~ /^st\./) {
2364: $r->print(<<ENDSCRIPT);
2365: <script language="JavaScript">
2366:
2367: function celledit(cn,cf) {
2368: var cnf=prompt(cn,cf);
2369: if (cnf!=null) {
2370: document.sheet.unewfield.value=cn;
2371: document.sheet.unewformula.value=cnf;
2372: document.sheet.submit();
2373: }
2374: }
2375:
2376: function changesheet(cn) {
2377: document.sheet.unewfield.value=cn;
2378: document.sheet.unewformula.value='changesheet';
2379: document.sheet.submit();
2380: }
2381:
2382: function insertrow(cn) {
2383: document.sheet.unewfield.value='insertrow';
2384: document.sheet.unewformula.value=cn;
2385: document.sheet.submit();
2386: }
2387:
2388: </script>
2389: ENDSCRIPT
2390: }
2391: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
2392: '<form action="'.$r->uri.'" name=sheet method=post>');
2393: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
2394: &hiddenfield('udom',$ENV{'form.udom'}).
2395: &hiddenfield('usymb',$ENV{'form.usymb'}).
2396: &hiddenfield('unewfield','').
2397: &hiddenfield('unewformula',''));
2398: $r->rflush();
2399: #
2400: # Full recalc?
2401: if ($ENV{'form.forcerecalc'}) {
2402: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2403: undef %spreadsheets;
2404: undef %courserdatas;
2405: undef %userrdatas;
2406: undef %defaultsheets;
2407: undef %updatedata;
2408: }
2409: # Read new sheet or modified worksheet
2410: $r->uri=~/\/(\w+)$/;
2411: my ($sheet,$sheetdata)=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2412: #
2413: # If a new formula had been entered, go from work copy
2414: if ($ENV{'form.unewfield'}) {
2415: $r->print('<h2>Modified Workcopy</h2>');
2416: $ENV{'form.unewformula'}=~s/\'/\"/g;
2417: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2418: $ENV{'form.unewformula'}.'<p>');
2419: $sheetdata->{'filename'} = $ENV{'form.ufn'};
2420: &tmpread($sheet,$sheetdata,
2421: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2422: } elsif ($ENV{'form.saveas'}) {
2423: $sheetdata->{'filename'} = $ENV{'form.ufn'};
2424: &tmpread($sheet,$sheetdata);
2425: } else {
2426: &readsheet($sheet,$sheetdata,$ENV{'form.ufn'});
2427: }
2428: # Print out user information
2429: unless ($sheetdata->{'sheettype'} eq 'classcalc') {
2430: $r->print('<p><b>User:</b> '.$sheetdata->{'uname'}.
2431: '<br><b>Domain:</b> '.$sheetdata->{'udom'});
2432: $r->print('<br><b>Section/Group:</b> '.$sheetdata->{'csec'});
2433: if ($ENV{'form.usymb'}) {
2434: $r->print('<br><b>Assessment:</b> <tt>'.
2435: $ENV{'form.usymb'}.'</tt>');
2436: }
2437: }
2438: #
2439: # Check user permissions
2440: if (($sheetdata->{'sheettype'} eq 'classcalc' ) ||
2441: ($sheetdata->{'uname'} ne $ENV{'user.name'} ) ||
2442: ($sheetdata->{'udom'} ne $ENV{'user.domain'})) {
2443: unless (&Apache::lonnet::allowed('vgr',$sheetdata->{'cid'})) {
2444: $r->print('<h1>Access Permission Denied</h1>'.
2445: '</form></body></html>');
2446: return OK;
2447: }
2448: }
2449: # Additional options
2450: $r->print('<br />'.
2451: '<input type="submit" name="forcerecalc" '.
2452: 'value="Completely Recalculate Sheet"><p>');
2453: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
2454: $r->print('<p><font size=+2>'.
2455: '<a href="/adm/studentcalc?'.
2456: 'uname='.$sheetdata->{'uname'}.
2457: '&udom='.$sheetdata->{'udom'}.'">'.
2458: 'Level up: Student Sheet</a></font><p>');
2459: }
2460: if (($sheetdata->{'sheettype'} eq 'studentcalc') &&
2461: (&Apache::lonnet::allowed('vgr',$sheetdata->{'cid'}))) {
2462: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
2463: 'Level up: Course Sheet</a></font><p>');
2464: }
2465: # Save dialog
2466: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2467: my $fname=$ENV{'form.ufn'};
2468: $fname=~s/\_[^\_]+$//;
2469: if ($fname eq 'default') { $fname='course_default'; }
2470: $r->print('<input type=submit name=saveas value="Save as ...">'.
2471: '<input type=text size=20 name=newfn value="'.$fname.'">'.
2472: 'make default: <input type=checkbox name="makedefufn"><p>');
2473: }
2474: $r->print(&hiddenfield('ufn',$sheetdata->{'filename'}));
2475: # Load dialog
2476: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2477: $r->print('<p><input type=submit name=load value="Load ...">'.
2478: '<select name="loadthissheet">'.
2479: '<option name="default">Default</option>');
2480: foreach (&othersheets($sheet,$sheetdata->{'sheettype'},$sheetdata)) {
2481: $r->print('<option name="'.$_.'"');
2482: if ($ENV{'form.ufn'} eq $_) {
2483: $r->print(' selected');
2484: }
2485: $r->print('>'.$_.'</option>');
2486: }
2487: $r->print('</select><p>');
2488: if ($sheetdata->{'sheettype'} eq 'studentcalc') {
2489: &setothersheets($sheet,
2490: &othersheets($sheet,'assesscalc',$sheetdata));
2491: }
2492: }
2493: # Cached sheets
2494: &expirationdates();
2495: undef %oldsheets;
2496: undef %loadedcaches;
2497: if ($sheetdata->{'sheettype'} eq 'classcalc') {
2498: $r->print("Loading previously calculated student sheets ...\n");
2499: $r->rflush();
2500: &cachedcsheets();
2501: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
2502: $r->print("Loading previously calculated assessment sheets ...\n");
2503: $r->rflush();
2504: &cachedssheets($sheetdata->{'uname'},$sheetdata->{'udom'},
2505: $sheetdata->{'uhome'});
2506: }
2507: # Update sheet, load rows
2508: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2509: $r->rflush();
2510: #
2511: &updatesheet($sheet,$sheetdata);
2512: $r->print("Updated rows, loading row data ...\n");
2513: $r->rflush();
2514: #
2515: &loadrows($sheet,$sheetdata,$r);
2516: $r->print("Loaded row data, calculating sheet ...<br>\n");
2517: $r->rflush();
2518: #
2519: my $calcoutput=&calcsheet($sheet);
2520: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2521: # See if something to save
2522: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2523: my $fname='';
2524: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2525: $fname=~s/\W/\_/g;
2526: if ($fname eq 'default') { $fname='course_default'; }
2527: $fname.='_'.$sheetdata->{'sheettype'};
2528: $sheetdata->{'filename'}->$fname;
2529: $ENV{'form.ufn'}=$fname;
2530: $r->print('<p>Saving spreadsheet: '.
2531: &writesheet($sheet,$ENV{'form.makedefufn'},$sheetdata).
2532: '<p>');
2533: }
2534: }
2535: #
2536: # Write the modified worksheet
2537: $r->print('<b>Current sheet:</b> '.$sheetdata->{'filename'}.'<p>');
2538: &tmpwrite($sheet,$sheetdata);
2539: if ($sheetdata->{'sheettype'} eq 'studentcalc') {
2540: $r->print('<br>Show rows with empty A column: ');
2541: } else {
2542: $r->print('<br>Show empty rows: ');
2543: }
2544: #
2545: $r->print(&hiddenfield('userselhidden','true').
2546: '<input type="checkbox" name="showall" onClick="submit()"');
2547: #
2548: if ($ENV{'form.showall'}) {
2549: $r->print(' checked');
2550: } else {
2551: unless ($ENV{'form.userselhidden'}) {
2552: unless
2553: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2554: $r->print(' checked');
2555: $ENV{'form.showall'}=1;
2556: }
2557: }
2558: }
2559: $r->print('>');
2560: #
2561: # CSV format checkbox (classcalc sheets only)
2562: if ($sheetdata->{'sheettype'} eq 'classcalc') {
2563: $r->print(' Output CSV format: <input type="checkbox" '.
2564: 'name="showcsv" onClick="submit()"');
2565: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2566: $r->print('>');
2567: }
2568: #
2569: # Buttons to insert rows
2570: $r->print(' Student Status: '.
2571: &Apache::lonhtmlcommon::StatusOptions
2572: ($ENV{'form.Status'},'sheet'));
2573: $r->print(<<ENDINSERTBUTTONS);
2574: <br>
2575: <input type='button' onClick='insertrow("top");'
2576: value='Insert Row Top'>
2577: <input type='button' onClick='insertrow("bottom");'
2578: value='Insert Row Bottom'><br>
2579: ENDINSERTBUTTONS
2580: # Print out sheet
2581: &outsheet($r,$sheet,$sheetdata);
2582: $r->print('</form></body></html>');
2583: # Done
2584: return OK;
2585: }
2586:
2587: 1;
2588: __END__
2589:
2590:
2591:
2592:
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