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lonspreadsheet.pm
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Mon Sep 9 17:18:33 2002 UTC (21 years, 9 months ago) by
matthew
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Added $sheetdata goodness to &updateclasssheet and &updatestudentassesssheet.
Fixed a caching bug which caused caching to only happen on a sheet basis, not
a student basis. Thus the instructor could only see one students assessment
sheets, regardless of which student she wanted to see.
1: #
2: # $Id: lonspreadsheet.pm,v 1.108 2002/09/09 17:18:33 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # 11/11,11/15,11/27,12/04,12/05,12/06,12/07,
30: # 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30,
31: # 01/01/01,02/01,03/01,19/01,20/01,22/01,
32: # 03/05,03/08,03/10,03/12,03/13,03/15,03/17,
33: # 03/19,03/20,03/21,03/27,04/05,04/09,
34: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17,
35: # 10/16,10/17,10/20,11/05,11/28,12/27 Gerd Kortemeyer
36: # 01/14/02 Matthew
37: # 02/04/02 Matthew
38:
39: # POD required stuff:
40:
41: =head1 NAME
42:
43: lonspreadsheet
44:
45: =head1 SYNOPSIS
46:
47: Spreadsheet interface to internal LON-CAPA data
48:
49: =head1 DESCRIPTION
50:
51: Lonspreadsheet provides course coordinators the ability to manage their
52: students grades online. The students are able to view their own grades, but
53: not the grades of their peers. The spreadsheet is highly customizable,
54: offering the ability to use Perl code to manipulate data, as well as many
55: built-in functions.
56:
57:
58: =head2 Functions available to user of lonspreadsheet
59:
60: =over 4
61:
62: =cut
63:
64: package Apache::lonspreadsheet;
65:
66: use strict;
67: use Safe;
68: use Safe::Hole;
69: use Opcode;
70: use Apache::lonnet;
71: use Apache::Constants qw(:common :http);
72: use GDBM_File;
73: use HTML::TokeParser;
74: use Apache::lonhtmlcommon;
75: #
76: # Caches for previously calculated spreadsheets
77: #
78:
79: my %oldsheets;
80: my %loadedcaches;
81: my %expiredates;
82:
83: #
84: # Cache for stores of an individual user
85: #
86:
87: my $cachedassess;
88: my %cachedstores;
89:
90: #
91: # These cache hashes need to be independent of user, resource and course
92: # (user and course can/should be in the keys)
93: #
94:
95: my %spreadsheets;
96: my %courserdatas;
97: my %userrdatas;
98: my %defaultsheets;
99: my %updatedata;
100:
101: #
102: # These global hashes are dependent on user, course and resource,
103: # and need to be initialized every time when a sheet is calculated
104: #
105: my %courseopt;
106: my %useropt;
107: my %parmhash;
108:
109: #
110: # Some hashes for stats on timing and performance
111: #
112:
113: my %starttimes;
114: my %usedtimes;
115: my %numbertimes;
116:
117: # Stuff that only the screen handler can know
118:
119: my $includedir;
120: my $tmpdir;
121:
122: # =============================================================================
123: # ===================================== Implements an instance of a spreadsheet
124:
125: sub initsheet {
126: my $safeeval = new Safe(shift);
127: my $safehole = new Safe::Hole;
128: $safeeval->permit("entereval");
129: $safeeval->permit(":base_math");
130: $safeeval->permit("sort");
131: $safeeval->deny(":base_io");
132: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
133: $safeeval->share('$@');
134: my $code=<<'ENDDEFS';
135: # ---------------------------------------------------- Inside of the safe space
136:
137: #
138: # f: formulas
139: # t: intermediate format (variable references expanded)
140: # v: output values
141: # c: preloaded constants (A-column)
142: # rl: row label
143: # os: other spreadsheets (for student spreadsheet only)
144:
145: undef %sheet_values;
146: undef %t;
147: undef %f;
148: undef %c;
149: undef %rowlabel;
150: undef @os;
151:
152: $maxrow = 0;
153: $sheettype = '';
154:
155: # filename/reference of the sheet
156: $filename = '';
157:
158: # user data
159: $uname = '';
160: $uhome = '';
161: $udom = '';
162:
163: # course data
164:
165: $csec = '';
166: $chome= '';
167: $cnum = '';
168: $cdom = '';
169: $cid = '';
170: $cfn = '';
171:
172: # symb
173:
174: $usymb = '';
175:
176: # error messages
177: $errormsg = '';
178:
179: sub mask {
180: my ($lower,$upper)=@_;
181:
182: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
183: my $la=$1;
184: my $ld=$2;
185:
186: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
187: my $ua=$1;
188: my $ud=$2;
189: my $alpha='';
190: my $num='';
191:
192: if (($la eq '*') || ($ua eq '*')) {
193: $alpha='[A-Za-z]';
194: } else {
195: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
196: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
197: $alpha='['.$la.'-'.$ua.']';
198: } else {
199: $alpha='['.$la.'-Za-'.$ua.']';
200: }
201: }
202:
203: if (($ld eq '*') || ($ud eq '*')) {
204: $num='\d+';
205: } else {
206: if (length($ld)!=length($ud)) {
207: $num.='(';
208: foreach ($ld=~m/\d/g) {
209: $num.='['.$_.'-9]';
210: }
211: if (length($ud)-length($ld)>1) {
212: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
213: }
214: $num.='|';
215: foreach ($ud=~m/\d/g) {
216: $num.='[0-'.$_.']';
217: }
218: $num.=')';
219: } else {
220: my @lda=($ld=~m/\d/g);
221: my @uda=($ud=~m/\d/g);
222: my $i; $j=0; $notdone=1;
223: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
224: if ($lda[$i]==$uda[$i]) {
225: $num.=$lda[$i];
226: $j=$i;
227: } else {
228: $notdone=0;
229: }
230: }
231: if ($j<$#lda-1) {
232: $num.='('.$lda[$j+1];
233: for ($i=$j+2;$i<=$#lda;$i++) {
234: $num.='['.$lda[$i].'-9]';
235: }
236: if ($uda[$j+1]-$lda[$j+1]>1) {
237: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
238: ($#lda-$j-1).'}';
239: }
240: $num.='|'.$uda[$j+1];
241: for ($i=$j+2;$i<=$#uda;$i++) {
242: $num.='[0-'.$uda[$i].']';
243: }
244: $num.=')';
245: } else {
246: if ($lda[$#lda]!=$uda[$#uda]) {
247: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
248: }
249: }
250: }
251: }
252: return '^'.$alpha.$num."\$";
253: }
254:
255: #-------------------------------------------------------
256:
257: =item UWCALC(hashname,modules,units,date)
258:
259: returns the proportion of the module
260: weights not previously completed by the student.
261:
262: =over 4
263:
264: =item hashname
265:
266: name of the hash the module dates have been inserted into
267:
268: =item modules
269:
270: reference to a cell which contains a comma deliminated list of modules
271: covered by the assignment.
272:
273: =item units
274:
275: reference to a cell which contains a comma deliminated list of module
276: weights with respect to the assignment
277:
278: =item date
279:
280: reference to a cell which contains the date the assignment was completed.
281:
282: =back
283:
284: =cut
285:
286: #-------------------------------------------------------
287: sub UWCALC {
288: my ($hashname,$modules,$units,$date) = @_;
289: my @Modules = split(/,/,$modules);
290: my @Units = split(/,/,$units);
291: my $total_weight;
292: foreach (@Units) {
293: $total_weight += $_;
294: }
295: my $usum=0;
296: for (my $i=0; $i<=$#Modules; $i++) {
297: if (&HASH($hashname,$Modules[$i]) eq $date) {
298: $usum += $Units[$i];
299: }
300: }
301: return $usum/$total_weight;
302: }
303:
304: #-------------------------------------------------------
305:
306: =item CDLSUM(list)
307:
308: returns the sum of the elements in a cell which contains
309: a Comma Deliminate List of numerical values.
310: 'list' is a reference to a cell which contains a comma deliminated list.
311:
312: =cut
313:
314: #-------------------------------------------------------
315: sub CDLSUM {
316: my ($list)=@_;
317: my $sum;
318: foreach (split/,/,$list) {
319: $sum += $_;
320: }
321: return $sum;
322: }
323:
324: #-------------------------------------------------------
325:
326: =item CDLITEM(list,index)
327:
328: returns the item at 'index' in a Comma Deliminated List.
329:
330: =over 4
331:
332: =item list
333:
334: reference to a cell which contains a comma deliminated list.
335:
336: =item index
337:
338: the Perl index of the item requested (first element in list has
339: an index of 0)
340:
341: =back
342:
343: =cut
344:
345: #-------------------------------------------------------
346: sub CDLITEM {
347: my ($list,$index)=@_;
348: my @Temp = split/,/,$list;
349: return $Temp[$index];
350: }
351:
352: #-------------------------------------------------------
353:
354: =item CDLHASH(name,key,value)
355:
356: loads a comma deliminated list of keys into
357: the hash 'name', all with a value of 'value'.
358:
359: =over 4
360:
361: =item name
362:
363: name of the hash.
364:
365: =item key
366:
367: (a pointer to) a comma deliminated list of keys.
368:
369: =item value
370:
371: a single value to be entered for each key.
372:
373: =back
374:
375: =cut
376:
377: #-------------------------------------------------------
378: sub CDLHASH {
379: my ($name,$key,$value)=@_;
380: my @Keys;
381: my @Values;
382: # Check to see if we have multiple $key values
383: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
384: my $keymask = &mask($key);
385: # Assume the keys are addresses
386: my @Temp = grep /$keymask/,keys(%sheet_values);
387: @Keys = $sheet_values{@Temp};
388: } else {
389: $Keys[0]= $key;
390: }
391: my @Temp;
392: foreach $key (@Keys) {
393: @Temp = (@Temp, split/,/,$key);
394: }
395: @Keys = @Temp;
396: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
397: my $valmask = &mask($value);
398: my @Temp = grep /$valmask/,keys(%sheet_values);
399: @Values =$sheet_values{@Temp};
400: } else {
401: $Values[0]= $value;
402: }
403: $value = $Values[0];
404: # Add values to hash
405: for (my $i = 0; $i<=$#Keys; $i++) {
406: my $key = $Keys[$i];
407: if (! exists ($hashes{$name}->{$key})) {
408: $hashes{$name}->{$key}->[0]=$value;
409: } else {
410: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
411: $hashes{$name}->{$key} = \@Temp;
412: }
413: }
414: return "hash '$name' updated";
415: }
416:
417: #-------------------------------------------------------
418:
419: =item GETHASH(name,key,index)
420:
421: returns the element in hash 'name'
422: reference by the key 'key', at index 'index' in the values list.
423:
424: =cut
425:
426: #-------------------------------------------------------
427: sub GETHASH {
428: my ($name,$key,$index)=@_;
429: if (! defined($index)) {
430: $index = 0;
431: }
432: if ($key =~ /^[A-z]\d+$/) {
433: $key = $sheet_values{$key};
434: }
435: return $hashes{$name}->{$key}->[$index];
436: }
437:
438: #-------------------------------------------------------
439:
440: =item CLEARHASH(name)
441:
442: clears all the values from the hash 'name'
443:
444: =item CLEARHASH(name,key)
445:
446: clears all the values from the hash 'name' associated with the given key.
447:
448: =cut
449:
450: #-------------------------------------------------------
451: sub CLEARHASH {
452: my ($name,$key)=@_;
453: if (defined($key)) {
454: if (exists($hashes{$name}->{$key})) {
455: $hashes{$name}->{$key}=undef;
456: return "hash '$name' key '$key' cleared";
457: }
458: } else {
459: if (exists($hashes{$name})) {
460: $hashes{$name}=undef;
461: return "hash '$name' cleared";
462: }
463: }
464: return "Error in clearing hash";
465: }
466:
467: #-------------------------------------------------------
468:
469: =item HASH(name,key,value)
470:
471: loads values into an internal hash. If a key
472: already has a value associated with it, the values are sorted numerically.
473:
474: =item HASH(name,key)
475:
476: returns the 0th value in the hash 'name' associated with 'key'.
477:
478: =cut
479:
480: #-------------------------------------------------------
481: sub HASH {
482: my ($name,$key,$value)=@_;
483: my @Keys;
484: undef @Keys;
485: my @Values;
486: # Check to see if we have multiple $key values
487: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
488: my $keymask = &mask($key);
489: # Assume the keys are addresses
490: my @Temp = grep /$keymask/,keys(%sheet_values);
491: @Keys = $sheet_values{@Temp};
492: } else {
493: $Keys[0]= $key;
494: }
495: # If $value is empty, return the first value associated
496: # with the first key.
497: if (! $value) {
498: return $hashes{$name}->{$Keys[0]}->[0];
499: }
500: # Check to see if we have multiple $value(s)
501: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
502: my $valmask = &mask($value);
503: my @Temp = grep /$valmask/,keys(%sheet_values);
504: @Values =$sheet_values{@Temp};
505: } else {
506: $Values[0]= $value;
507: }
508: # Add values to hash
509: for (my $i = 0; $i<=$#Keys; $i++) {
510: my $key = $Keys[$i];
511: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
512: if (! exists ($hashes{$name}->{$key})) {
513: $hashes{$name}->{$key}->[0]=$value;
514: } else {
515: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
516: $hashes{$name}->{$key} = \@Temp;
517: }
518: }
519: return $Values[-1];
520: }
521:
522: #-------------------------------------------------------
523:
524: =item NUM(range)
525:
526: returns the number of items in the range.
527:
528: =cut
529:
530: #-------------------------------------------------------
531: sub NUM {
532: my $mask=mask(@_);
533: my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
534: return $num;
535: }
536:
537: sub BIN {
538: my ($low,$high,$lower,$upper)=@_;
539: my $mask=mask($lower,$upper);
540: my $num=0;
541: foreach (grep /$mask/,keys(%sheet_values)) {
542: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
543: $num++;
544: }
545: }
546: return $num;
547: }
548:
549:
550: #-------------------------------------------------------
551:
552: =item SUM(range)
553:
554: returns the sum of items in the range.
555:
556: =cut
557:
558: #-------------------------------------------------------
559: sub SUM {
560: my $mask=mask(@_);
561: my $sum=0;
562: foreach (grep /$mask/,keys(%sheet_values)) {
563: $sum+=$sheet_values{$_};
564: }
565: return $sum;
566: }
567:
568: #-------------------------------------------------------
569:
570: =item MEAN(range)
571:
572: compute the average of the items in the range.
573:
574: =cut
575:
576: #-------------------------------------------------------
577: sub MEAN {
578: my $mask=mask(@_);
579: my $sum=0; my $num=0;
580: foreach (grep /$mask/,keys(%sheet_values)) {
581: $sum+=$sheet_values{$_};
582: $num++;
583: }
584: if ($num) {
585: return $sum/$num;
586: } else {
587: return undef;
588: }
589: }
590:
591: #-------------------------------------------------------
592:
593: =item STDDEV(range)
594:
595: compute the standard deviation of the items in the range.
596:
597: =cut
598:
599: #-------------------------------------------------------
600: sub STDDEV {
601: my $mask=mask(@_);
602: my $sum=0; my $num=0;
603: foreach (grep /$mask/,keys(%sheet_values)) {
604: $sum+=$sheet_values{$_};
605: $num++;
606: }
607: unless ($num>1) { return undef; }
608: my $mean=$sum/$num;
609: $sum=0;
610: foreach (grep /$mask/,keys(%sheet_values)) {
611: $sum+=($sheet_values{$_}-$mean)**2;
612: }
613: return sqrt($sum/($num-1));
614: }
615:
616: #-------------------------------------------------------
617:
618: =item PROD(range)
619:
620: compute the product of the items in the range.
621:
622: =cut
623:
624: #-------------------------------------------------------
625: sub PROD {
626: my $mask=mask(@_);
627: my $prod=1;
628: foreach (grep /$mask/,keys(%sheet_values)) {
629: $prod*=$sheet_values{$_};
630: }
631: return $prod;
632: }
633:
634: #-------------------------------------------------------
635:
636: =item MAX(range)
637:
638: compute the maximum of the items in the range.
639:
640: =cut
641:
642: #-------------------------------------------------------
643: sub MAX {
644: my $mask=mask(@_);
645: my $max='-';
646: foreach (grep /$mask/,keys(%sheet_values)) {
647: unless ($max) { $max=$sheet_values{$_}; }
648: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
649: }
650: return $max;
651: }
652:
653: #-------------------------------------------------------
654:
655: =item MIN(range)
656:
657: compute the minimum of the items in the range.
658:
659: =cut
660:
661: #-------------------------------------------------------
662: sub MIN {
663: my $mask=mask(@_);
664: my $min='-';
665: foreach (grep /$mask/,keys(%sheet_values)) {
666: unless ($max) { $max=$sheet_values{$_}; }
667: if (($sheet_values{$_}<$min) || ($min eq '-')) {
668: $min=$sheet_values{$_};
669: }
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(%sheet_values)) {
689: push (@inside,$sheet_values{$_});
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(%sheet_values)) {
714: $inside[$#inside+1]=$sheet_values{$_};
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 $sum;
722: }
723:
724: #-------------------------------------------------------
725:
726: =item MINPARM(parametername)
727:
728: Returns the minimum value of the parameters matching the parametername.
729: parametername should be a string such as 'duedate'.
730:
731: =cut
732:
733: #-------------------------------------------------------
734: sub MINPARM {
735: my ($expression) = @_;
736: my $min = undef;
737: study($expression);
738: foreach $parameter (keys(%c)) {
739: next if ($parameter !~ /$expression/);
740: if ((! defined($min)) || ($min > $c{$parameter})) {
741: $min = $c{$parameter}
742: }
743: }
744: return $min;
745: }
746:
747: #-------------------------------------------------------
748:
749: =item MAXPARM(parametername)
750:
751: Returns the maximum value of the parameters matching the input parameter name.
752: parametername should be a string such as 'duedate'.
753:
754: =cut
755:
756: #-------------------------------------------------------
757: sub MAXPARM {
758: my ($expression) = @_;
759: my $max = undef;
760: study($expression);
761: foreach $parameter (keys(%c)) {
762: next if ($parameter !~ /$expression/);
763: if ((! defined($min)) || ($max < $c{$parameter})) {
764: $max = $c{$parameter}
765: }
766: }
767: return $max;
768: }
769:
770: #--------------------------------------------------------
771: sub expandnamed {
772: my $expression=shift;
773: if ($expression=~/^\&/) {
774: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
775: my @vars=split(/\W+/,$formula);
776: my %values=();
777: undef %values;
778: foreach ( @vars ) {
779: my $varname=$_;
780: if ($varname=~/\D/) {
781: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
782: $varname=~s/$var/\(\\w\+\)/g;
783: foreach (keys(%c)) {
784: if ($_=~/$varname/) {
785: $values{$1}=1;
786: }
787: }
788: }
789: }
790: if ($func eq 'EXPANDSUM') {
791: my $result='';
792: foreach (keys(%values)) {
793: my $thissum=$formula;
794: $thissum=~s/$var/$_/g;
795: $result.=$thissum.'+';
796: }
797: $result=~s/\+$//;
798: return $result;
799: } else {
800: return 0;
801: }
802: } else {
803: # it is not a function, so it is a parameter name
804: # We should do the following:
805: # 1. Take the list of parameter names
806: # 2. look through the list for ones that match the parameter we want
807: # 3. If there are no collisions, return the one that matches
808: # 4. If there is a collision, return 'bad parameter name error'
809: my $returnvalue = '';
810: my @matches = ();
811: $#matches = -1;
812: study $expression;
813: foreach $parameter (keys(%c)) {
814: push @matches,$parameter if ($parameter =~ /$expression/);
815: }
816: if ($#matches == 0) {
817: $returnvalue = '$c{\''.$matches[0].'\'}';
818: } elsif ($#matches > 0) {
819: # more than one match. Look for a concise one
820: $returnvalue = "'non-unique parameter name : $expression'";
821: foreach (@matches) {
822: if (/^$expression$/) {
823: $returnvalue = '$c{\''.$_.'\'}';
824: }
825: }
826: } else {
827: $returnvalue = "'bad parameter name : $expression'";
828: }
829: return $returnvalue;
830: }
831: }
832:
833: sub sett {
834: %t=();
835: my $pattern='';
836: if ($sheettype eq 'assesscalc') {
837: $pattern='A';
838: } else {
839: $pattern='[A-Z]';
840: }
841: # Deal with the template row
842: foreach (keys(%f)) {
843: next if ($_!~/template\_(\w)/);
844: my $col=$1;
845: next if ($col=~/^$pattern/);
846: foreach (keys(%f)) {
847: next if ($_!~/A(\d+)/);
848: my $trow=$1;
849: next if (! $trow);
850: # Get the name of this cell
851: my $lb=$col.$trow;
852: # Grab the template declaration
853: $t{$lb}=$f{'template_'.$col};
854: # Replace '#' with the row number
855: $t{$lb}=~s/\#/$trow/g;
856: # Replace '....' with ','
857: $t{$lb}=~s/\.\.+/\,/g;
858: # Replace 'A0' with the value from 'A0'
859: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
860: # Replace parameters
861: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
862: }
863: }
864: # Deal with the normal cells
865: foreach (keys(%f)) {
866: if (($f{$_}) && ($_!~/template\_/)) {
867: my $matches=($_=~/^$pattern(\d+)/);
868: if (($matches) && ($1)) {
869: unless ($f{$_}=~/^\!/) {
870: $t{$_}=$c{$_};
871: }
872: } else {
873: $t{$_}=$f{$_};
874: $t{$_}=~s/\.\.+/\,/g;
875: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
876: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
877: }
878: }
879: }
880: # For inserted lines, [B-Z] is also valid
881: unless ($sheettype eq 'assesscalc') {
882: foreach (keys(%f)) {
883: if ($_=~/[B-Z](\d+)/) {
884: if ($f{'A'.$1}=~/^[\~\-]/) {
885: $t{$_}=$f{$_};
886: $t{$_}=~s/\.\.+/\,/g;
887: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
888: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
889: }
890: }
891: }
892: }
893: # For some reason 'A0' gets special treatment... This seems superfluous
894: # but I imagine it is here for a reason.
895: $t{'A0'}=$f{'A0'};
896: $t{'A0'}=~s/\.\.+/\,/g;
897: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
898: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
899: }
900:
901: sub calc {
902: undef %sheet_values;
903: &sett();
904: my $notfinished=1;
905: my $lastcalc='';
906: my $depth=0;
907: while ($notfinished) {
908: $notfinished=0;
909: foreach (keys(%t)) {
910: my $old=$sheet_values{$_};
911: $sheet_values{$_}=eval $t{$_};
912: if ($@) {
913: undef %sheet_values;
914: return $_.': '.$@;
915: }
916: if ($sheet_values{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
917: }
918: $depth++;
919: if ($depth>100) {
920: undef %sheet_values;
921: return $lastcalc.': Maximum calculation depth exceeded';
922: }
923: }
924: return '';
925: }
926:
927: sub templaterow {
928: my @cols=();
929: $cols[0]='<b><font size=+1>Template</font></b>';
930: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
931: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
932: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
933: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
934: my $fm=$f{'template_'.$_};
935: $fm=~s/[\'\"]/\&\#34;/g;
936: push(@cols,"'template_$_','$fm'".'___eq___'.$fm);
937: }
938: return @cols;
939: }
940:
941: #
942: # This is actually used for the student spreadsheet, not the assessment sheet
943: # Do not be fooled by the name!
944: #
945: sub outrowassess {
946: # $n is the current row number
947: my $n=shift;
948: my @cols=();
949: if ($n) {
950: my ($usy,$ufn)=split(/__&&&\__/,$f{'A'.$n});
951: if ($rowlabel{$usy}) {
952: $cols[0]=$rowlabel{$usy}.'<br>'.
953: '<select name="sel_'.$n.'" onChange="changesheet('.$n.')">'.
954: '<option name="default">Default</option>';
955: } else {
956: $cols[0]='';
957: }
958: foreach (@os) {
959: $cols[0].='<option name="'.$_.'"';
960: if ($ufn eq $_) {
961: $cols[0].=' selected';
962: }
963: $cols[0].='>'.$_.'</option>';
964: }
965: $cols[0].='</select>';
966: } else {
967: $cols[0]='<b><font size=+1>Export</font></b>';
968: }
969: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
970: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
971: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
972: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
973: my $fm=$f{$_.$n};
974: $fm=~s/[\'\"]/\&\#34;/g;
975: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
976: }
977: return @cols;
978: }
979:
980: sub outrow {
981: my $n=shift;
982: my @cols=();
983: if ($n) {
984: $cols[0]=$rowlabel{$f{'A'.$n}};
985: } else {
986: $cols[0]='<b><font size=+1>Export</font></b>';
987: }
988: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
989: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
990: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
991: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
992: my $fm=$f{$_.$n};
993: $fm=~s/[\'\"]/\&\#34;/g;
994: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
995: }
996: return @cols;
997: }
998:
999: sub exportrowa {
1000: my @exportarray=();
1001: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1002: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1003: push(@exportarray,$sheet_values{$_.'0'});
1004: }
1005: return @exportarray;
1006: }
1007:
1008: # ------------------------------------------- End of "Inside of the safe space"
1009: ENDDEFS
1010: $safeeval->reval($code);
1011: return $safeeval;
1012: }
1013:
1014: # ------------------------------------------------ Add or change formula values
1015:
1016: sub setformulas {
1017: my ($safeeval,%f)=@_;
1018: %{$safeeval->varglob('f')}=%f;
1019: }
1020:
1021: # ------------------------------------------------ Add or change formula values
1022:
1023: sub setconstants {
1024: my ($safeeval,%c)=@_;
1025: %{$safeeval->varglob('c')}=%c;
1026: }
1027:
1028: # --------------------------------------------- Set names of other spreadsheets
1029:
1030: sub setothersheets {
1031: my ($safeeval,@os)=@_;
1032: @{$safeeval->varglob('os')}=@os;
1033: }
1034:
1035: # ------------------------------------------------ Add or change formula values
1036:
1037: sub setrowlabels {
1038: my ($safeeval,%rowlabel)=@_;
1039: %{$safeeval->varglob('rowlabel')}=%rowlabel;
1040: }
1041:
1042: # ------------------------------------------------------- Calculate spreadsheet
1043:
1044: sub calcsheet {
1045: my $safeeval=shift;
1046: return $safeeval->reval('&calc();');
1047: }
1048:
1049: # ------------------------------------------------------------------ Get values
1050:
1051: sub getvalues {
1052: my $safeeval=shift;
1053: return $safeeval->reval('%sheet_values');
1054: }
1055:
1056: # ---------------------------------------------------------------- Get formulas
1057:
1058: sub getformulas {
1059: my $safeeval=shift;
1060: return %{$safeeval->varglob('f')};
1061: }
1062:
1063: # ----------------------------------------------------- Get value of $f{'A'.$n}
1064:
1065: sub getfa {
1066: my ($safeeval,$n)=@_;
1067: return $safeeval->reval('$f{"A'.$n.'"}');
1068: }
1069:
1070: # -------------------------------------------------------------------- Get type
1071:
1072: sub gettype {
1073: my $safeeval=shift;
1074: return $safeeval->reval('$sheettype');
1075: }
1076:
1077: # ------------------------------------------------------------------ Set maxrow
1078:
1079: sub setmaxrow {
1080: my ($safeeval,$row)=@_;
1081: $safeeval->reval('$maxrow='.$row.';');
1082: }
1083:
1084: # ------------------------------------------------------------------ Get maxrow
1085:
1086: sub getmaxrow {
1087: my $safeeval=shift;
1088: return $safeeval->reval('$maxrow');
1089: }
1090:
1091: # ---------------------------------------------------------------- Set filename
1092:
1093: sub setfilename {
1094: my ($safeeval,$fn)=@_;
1095: $safeeval->reval('$filename="'.$fn.'";');
1096: }
1097:
1098: # ---------------------------------------------------------------- Get filename
1099:
1100: sub getfilename {
1101: my $safeeval=shift;
1102: return $safeeval->reval('$filename');
1103: }
1104:
1105: # --------------------------------------------------------------- Get course ID
1106:
1107: sub getcid {
1108: my $safeeval=shift;
1109: return $safeeval->reval('$cid');
1110: }
1111:
1112: # --------------------------------------------------------- Get course filename
1113:
1114: sub getcfn {
1115: my $safeeval=shift;
1116: return $safeeval->reval('$cfn');
1117: }
1118:
1119: # ----------------------------------------------------------- Get course number
1120:
1121: sub getcnum {
1122: my $safeeval=shift;
1123: return $safeeval->reval('$cnum');
1124: }
1125:
1126: # ------------------------------------------------------------- Get course home
1127:
1128: sub getchome {
1129: my $safeeval=shift;
1130: return $safeeval->reval('$chome');
1131: }
1132:
1133: # ----------------------------------------------------------- Get course domain
1134:
1135: sub getcdom {
1136: my $safeeval=shift;
1137: return $safeeval->reval('$cdom');
1138: }
1139:
1140: # ---------------------------------------------------------- Get course section
1141:
1142: sub getcsec {
1143: my $safeeval=shift;
1144: return $safeeval->reval('$csec');
1145: }
1146:
1147: # --------------------------------------------------------------- Get user name
1148:
1149: sub getuname {
1150: my $safeeval=shift;
1151: return $safeeval->reval('$uname');
1152: }
1153:
1154: # ------------------------------------------------------------- Get user domain
1155:
1156: sub getudom {
1157: my $safeeval=shift;
1158: return $safeeval->reval('$udom');
1159: }
1160:
1161: # --------------------------------------------------------------- Get user home
1162:
1163: sub getuhome {
1164: my $safeeval=shift;
1165: return $safeeval->reval('$uhome');
1166: }
1167:
1168: # -------------------------------------------------------------------- Get symb
1169:
1170: sub getusymb {
1171: my $safeeval=shift;
1172: return $safeeval->reval('$usymb');
1173: }
1174:
1175: # ------------------------------------------------------------- Export of A-row
1176:
1177: sub exportdata {
1178: my $safeeval=shift;
1179: return $safeeval->reval('&exportrowa()');
1180: }
1181:
1182:
1183: # ========================================================== End of Spreadsheet
1184: # =============================================================================
1185:
1186: #
1187: # Procedures for screen output
1188: #
1189: # --------------------------------------------- Produce output row n from sheet
1190:
1191: sub rown {
1192: my ($safeeval,$n)=@_;
1193: my $defaultbg;
1194: my $rowdata='';
1195: my $dataflag=0;
1196: unless ($n eq '-') {
1197: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1198: } else {
1199: $defaultbg='#E0FF';
1200: }
1201: unless ($ENV{'form.showcsv'}) {
1202: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1203: } else {
1204: $rowdata.="\n".'"'.$n.'"';
1205: }
1206: my $showf=0;
1207: my $proc;
1208: my $maxred=1;
1209: my $sheettype=&gettype($safeeval);
1210: if ($sheettype eq 'studentcalc') {
1211: $proc='&outrowassess';
1212: $maxred=26;
1213: } else {
1214: $proc='&outrow';
1215: }
1216: if ($sheettype eq 'assesscalc') {
1217: $maxred=1;
1218: } else {
1219: $maxred=26;
1220: }
1221: if (&getfa($safeeval,$n)=~/^[\~\-]/) { $maxred=1; }
1222: if ($n eq '-') {
1223: $proc='&templaterow';
1224: $n=-1;
1225: $dataflag=1;
1226: }
1227: foreach ($safeeval->reval($proc.'('.$n.')')) {
1228: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1229: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1230: if ((($vl ne '') || ($vl eq '0')) &&
1231: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1232: if ($showf==0) { $vl=$_; }
1233: unless ($ENV{'form.showcsv'}) {
1234: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1235: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1236: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1237: if ($vl eq '') {
1238: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1239: }
1240: $rowdata.='<td bgcolor='.$bgcolor.'>'.
1241: '<a href="javascript:celledit('.$fm.');">'.$vl.'</a></td>';
1242: } else {
1243: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1244: }
1245: } else {
1246: $rowdata.=',"'.$vl.'"';
1247: }
1248: $showf++;
1249: } # End of foreach($safeval...)
1250: if ($ENV{'form.showall'} || ($dataflag)) {
1251: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1252: } else {
1253: return '';
1254: }
1255: }
1256:
1257: # ------------------------------------------------------------- Print out sheet
1258:
1259: sub outsheet {
1260: my ($r,$safeeval,$sheetdata)=@_;
1261: my $maxred = 26; # The maximum number of cells to show as
1262: # red (uneditable)
1263: # To make student sheets uneditable could we
1264: # set $maxred = 52?
1265: #
1266: my $realm='Course'; # 'assessment', 'user', or 'course' sheet
1267: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1268: $maxred=1;
1269: $realm='Assessment';
1270: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1271: $maxred=26;
1272: $realm='User';
1273: }
1274: #
1275: # Column label
1276: my $tabledata;
1277: if ($ENV{'form.showcsv'}) {
1278: $tabledata='<pre>';
1279: } else {
1280: $tabledata='<table border=2><tr><th colspan=2 rowspan=2>'.
1281: '<font size=+2>'.$realm.'</font></th>'.
1282: '<td bgcolor=#FFDDDD colspan='.$maxred.
1283: '><b><font size=+1>Import</font></b></td>'.
1284: '<td colspan='.(52-$maxred).
1285: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1286: my $showf=0;
1287: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1288: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1289: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1290: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1291: $showf++;
1292: if ($showf<=$maxred) {
1293: $tabledata.='<td bgcolor="#FFDDDD">';
1294: } else {
1295: $tabledata.='<td>';
1296: }
1297: $tabledata.="<b><font size=+1>$_</font></b></td>";
1298: }
1299: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1300: }
1301: $r->print($tabledata);
1302: #
1303: # Prepare to output rows
1304: my $row;
1305: my $maxrow=&getmaxrow($safeeval);
1306: #
1307: my @sortby=();
1308: my @sortidx=();
1309: for ($row=1;$row<=$maxrow;$row++) {
1310: push (@sortby, $safeeval->reval('$f{"A'.$row.'"}'));
1311: push (@sortidx, $row-1);
1312: }
1313: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1314: #
1315: # Determine the type of child spreadsheets
1316: my $what='Student';
1317: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1318: $what='Item';
1319: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1320: $what='Assessment';
1321: }
1322: #
1323: # Loop through the rows and output them one at a time
1324: my $n=0;
1325: for ($row=0;$row<$maxrow;$row++) {
1326: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1327: if ($thisrow) {
1328: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1329: $r->print("</table>\n<br>\n");
1330: $r->rflush();
1331: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1332: $r->print('<td>'.
1333: join('</td><td>',
1334: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1335: 'abcdefghijklmnopqrstuvwxyz'))).
1336: "</td></tr>\n");
1337: }
1338: $n++;
1339: $r->print($thisrow);
1340: }
1341: }
1342: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1343: }
1344:
1345: #
1346: # ----------------------------------------------- Read list of available sheets
1347: #
1348: sub othersheets {
1349: my ($safeeval,$stype)=@_;
1350: #
1351: my $cnum = &getcnum($safeeval);
1352: my $cdom = &getcdom($safeeval);
1353: my $chome = &getchome($safeeval);
1354: #
1355: my @alternatives=();
1356: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1357: my ($tmp) = keys(%results);
1358: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1359: @alternatives = sort (keys(%results));
1360: }
1361: return @alternatives;
1362: }
1363:
1364:
1365: #
1366: # -------------------------------------- Parse a spreadsheet
1367: #
1368: sub parse_sheet {
1369: # $sheetxml is a scalar reference or a scalar
1370: my ($sheetxml) = @_;
1371: if (! ref($sheetxml)) {
1372: my $tmp = $sheetxml;
1373: $sheetxml = \$tmp;
1374: }
1375: my %f;
1376: my $parser=HTML::TokeParser->new($sheetxml);
1377: my $token;
1378: while ($token=$parser->get_token) {
1379: if ($token->[0] eq 'S') {
1380: if ($token->[1] eq 'field') {
1381: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1382: $parser->get_text('/field');
1383: }
1384: if ($token->[1] eq 'template') {
1385: $f{'template_'.$token->[2]->{'col'}}=
1386: $parser->get_text('/template');
1387: }
1388: }
1389: }
1390: return \%f;
1391: }
1392:
1393: #
1394: # -------------------------------------- Read spreadsheet formulas for a course
1395: #
1396:
1397: sub readsheet {
1398: my ($safeeval,$sheetdata,$fn)=@_;
1399: #
1400: my $stype = $sheetdata->{'sheettype'};
1401: my $cnum = $sheetdata->{'cnum'};
1402: my $cdom = $sheetdata->{'cdom'};
1403: my $chome = $sheetdata->{'chome'};
1404: #
1405: if (! defined($fn)) {
1406: # There is no filename. Look for defaults in course and global, cache
1407: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1408: my %tmphash = &Apache::lonnet::get('environment',
1409: ['spreadsheet_default_'.$stype],
1410: $cdom,$cnum);
1411: my ($tmp) = keys(%tmphash);
1412: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1413: $fn = 'default_'.$stype;
1414: } else {
1415: $fn = $tmphash{'spreadsheet_default_'.$stype};
1416: }
1417: unless (($fn) && ($fn!~/^error\:/)) {
1418: $fn='default_'.$stype;
1419: }
1420: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1421: }
1422: }
1423: # $fn now has a value
1424: &setfilename($safeeval,$fn);
1425: # see if sheet is cached
1426: my $fstring='';
1427: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1428: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1429: } else {
1430: # Not cached, need to read
1431: my %f=();
1432: if ($fn=~/^default\_/) {
1433: my $sheetxml='';
1434: my $fh;
1435: my $dfn=$fn;
1436: $dfn=~s/\_/\./g;
1437: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1438: $sheetxml=join('',<$fh>);
1439: } else {
1440: $sheetxml='<field row="0" col="A">"Error"</field>';
1441: }
1442: %f=%{&parse_sheet(\$sheetxml)};
1443: } elsif($fn=~/\/*\.spreadsheet$/) {
1444: my $sheetxml=&Apache::lonnet::getfile
1445: (&Apache::lonnet::filelocation('',$fn));
1446: if ($sheetxml == -1) {
1447: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1448: .$fn.'"</field>';
1449: }
1450: %f=%{&parse_sheet(\$sheetxml)};
1451: } else {
1452: my $sheet='';
1453: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1454: my ($tmp) = keys(%tmphash);
1455: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1456: foreach (keys(%tmphash)) {
1457: $f{$_}=$tmphash{$_};
1458: }
1459: }
1460: }
1461: # Cache and set
1462: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1463: &setformulas($safeeval,%f);
1464: }
1465: }
1466:
1467: # -------------------------------------------------------- Make new spreadsheet
1468:
1469: sub makenewsheet {
1470: my ($uname,$udom,$stype,$usymb)=@_;
1471: my %sheetdata=();
1472: $sheetdata{'uname'} = $uname;
1473: $sheetdata{'udom'} = $udom;
1474: $sheetdata{'sheettype'} = $stype;
1475: $sheetdata{'usymb'} = $usymb;
1476: $sheetdata{'cid'} = $ENV{'request.course.id'};
1477: $sheetdata{'csec'} = &Apache::lonnet::usection
1478: ($udom,$uname,$ENV{'request.course.id'});
1479: $sheetdata{'cfn'} = $ENV{'request.course.fn'};
1480: $sheetdata{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1481: $sheetdata{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1482: $sheetdata{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1483: $sheetdata{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1484:
1485: my $safeeval=initsheet($stype);
1486: my $initstring = '';
1487: foreach (keys(%sheetdata)) {
1488: $initstring.= qq{\$$_="$sheetdata{$_}";};
1489: }
1490: $safeeval->reval($initstring);
1491: return $safeeval,\%sheetdata;
1492: }
1493:
1494: # ------------------------------------------------------------ Save spreadsheet
1495:
1496: sub writesheet {
1497: my ($safeeval,$makedef)=@_;
1498: my $cid=&getcid($safeeval);
1499: if (&Apache::lonnet::allowed('opa',$cid)) {
1500: my %f=&getformulas($safeeval);
1501: my $stype=&gettype($safeeval);
1502: my $cnum=&getcnum($safeeval);
1503: my $cdom=&getcdom($safeeval);
1504: my $chome=&getchome($safeeval);
1505: my $fn=&getfilename($safeeval);
1506: # Cache new sheet
1507: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1508: # Write sheet
1509: my $sheetdata='';
1510: foreach (keys(%f)) {
1511: unless ($f{$_} eq 'import') {
1512: $sheetdata.=&Apache::lonnet::escape($_).'='.
1513: &Apache::lonnet::escape($f{$_}).'&';
1514: }
1515: }
1516: $sheetdata=~s/\&$//;
1517: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1518: $sheetdata,$chome);
1519: if ($reply eq 'ok') {
1520: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1521: $stype.'_spreadsheets:'.
1522: &Apache::lonnet::escape($fn).
1523: '='.$ENV{'user.name'}.'@'.
1524: $ENV{'user.domain'},
1525: $chome);
1526: if ($reply eq 'ok') {
1527: if ($makedef) {
1528: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1529: ':environment:'.
1530: 'spreadsheet_default_'.
1531: $stype.'='.
1532: &Apache::lonnet::escape($fn),
1533: $chome);
1534: }
1535: return $reply;
1536: }
1537: return $reply;
1538: }
1539: return $reply;
1540: }
1541: return 'unauthorized';
1542: }
1543:
1544: # ----------------------------------------------- Make a temp copy of the sheet
1545: # "Modified workcopy" - interactive only
1546: #
1547:
1548: sub tmpwrite {
1549: my $safeeval=shift;
1550: my $fn=$ENV{'user.name'}.'_'.
1551: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1552: &getfilename($safeeval);
1553: $fn=~s/\W/\_/g;
1554: $fn=$tmpdir.$fn.'.tmp';
1555: my $fh;
1556: if ($fh=Apache::File->new('>'.$fn)) {
1557: print $fh join("\n",&getformulas($safeeval));
1558: }
1559: }
1560:
1561: # ---------------------------------------------------------- Read the temp copy
1562:
1563: sub tmpread {
1564: my ($safeeval,$nfield,$nform)=@_;
1565: my $fn=$ENV{'user.name'}.'_'.
1566: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1567: &getfilename($safeeval);
1568: $fn=~s/\W/\_/g;
1569: $fn=$tmpdir.$fn.'.tmp';
1570: my $fh;
1571: my %fo=();
1572: my $countrows=0;
1573: if ($fh=Apache::File->new($fn)) {
1574: my $name;
1575: while ($name=<$fh>) {
1576: chomp($name);
1577: my $value=<$fh>;
1578: chomp($value);
1579: $fo{$name}=$value;
1580: if ($name=~/^A(\d+)$/) {
1581: if ($1>$countrows) {
1582: $countrows=$1;
1583: }
1584: }
1585: }
1586: }
1587: if ($nform eq 'changesheet') {
1588: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1589: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1590: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1591: }
1592: } elsif ($nfield eq 'insertrow') {
1593: $countrows++;
1594: my $newrow=substr('000000'.$countrows,-7);
1595: if ($nform eq 'top') {
1596: $fo{'A'.$countrows}='--- '.$newrow;
1597: } else {
1598: $fo{'A'.$countrows}='~~~ '.$newrow;
1599: }
1600: } else {
1601: if ($nfield) { $fo{$nfield}=$nform; }
1602: }
1603: &setformulas($safeeval,%fo);
1604: }
1605:
1606: ##################################################
1607: ##################################################
1608:
1609: =pod
1610:
1611: =item &parmval()
1612:
1613: Determine the value of a parameter.
1614:
1615: Inputs: $what, the parameter needed, $safeeval, the safe space
1616:
1617: Returns: The value of a parameter, or '' if none.
1618:
1619: This function cascades through the possible levels searching for a value for
1620: a parameter. The levels are checked in the following order:
1621: user, course (at section level and course level), map, and lonnet::metadata.
1622: This function uses %parmhash, which must be tied prior to calling it.
1623: This function also requires %courseopt and %useropt to be initialized for
1624: this user and course.
1625:
1626: =cut
1627:
1628: ##################################################
1629: ##################################################
1630: sub parmval {
1631: my ($what,$safeeval,$sheetdata)=@_;
1632: my $symb = $sheetdata->{'usymb'};
1633: unless ($symb) { return ''; }
1634: #
1635: my $cid = $sheetdata->{'cid'};
1636: my $csec = $sheetdata->{'csec'};
1637: my $uname = $sheetdata->{'uname'};
1638: my $udom = $sheetdata->{'udom'};
1639: my $result='';
1640: #
1641: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1642: # Cascading lookup scheme
1643: my $rwhat=$what;
1644: $what =~ s/^parameter\_//;
1645: $what =~ s/\_([^\_]+)$/\.$1/;
1646: #
1647: my $symbparm = $symb.'.'.$what;
1648: my $mapparm = $mapname.'___(all).'.$what;
1649: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
1650: #
1651: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
1652: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
1653: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
1654: #
1655: my $courselevel = $usercourseprefix.'.'.$what;
1656: my $courselevelr = $usercourseprefix.'.'.$symbparm;
1657: my $courselevelm = $usercourseprefix.'.'.$mapparm;
1658: # fourth, check user
1659: if ($uname) {
1660: return $useropt{$courselevelr} if ($useropt{$courselevelr});
1661: return $useropt{$courselevelm} if ($useropt{$courselevelm});
1662: return $useropt{$courselevel} if ($useropt{$courselevel});
1663: }
1664: # third, check course
1665: if ($csec) {
1666: return $courseopt{$seclevelr} if ($courseopt{$seclevelr});
1667: return $courseopt{$seclevelm} if ($courseopt{$seclevelm});
1668: return $courseopt{$seclevel} if ($courseopt{$seclevel});
1669: }
1670: #
1671: return $courseopt{$courselevelr} if ($courseopt{$courselevelr});
1672: return $courseopt{$courselevelm} if ($courseopt{$courselevelm});
1673: return $courseopt{$courselevel} if ($courseopt{$courselevel});
1674: # second, check map parms
1675: my $thisparm = $parmhash{$symbparm};
1676: return $thisparm if ($thisparm);
1677: # first, check default
1678: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1679: }
1680:
1681: # ---------------------------------------------- Update rows for course listing
1682: sub updateclasssheet {
1683: my ($safeeval,$sheetdata) = @_;
1684: my $cnum =$sheetdata->{'cnum'};
1685: my $cdom =$sheetdata->{'cdom'};
1686: my $cid =$sheetdata->{'cid'};
1687: my $chome =$sheetdata->{'chome'};
1688: #
1689: # Read class list and row labels
1690: my %classlist;
1691: my @tmp = &Apache::lonnet::dump('classlist',$cdom,$cnum);
1692: if ($tmp[0] !~ /^error/) {
1693: %classlist = @tmp;
1694: } else {
1695: return 'Could not access course data';
1696: }
1697: undef @tmp;
1698: #
1699: my %currentlist=();
1700: my $now=time;
1701: foreach my $student (keys(%classlist)) {
1702: my ($end,$start)=split(/\:/,$classlist{$student});
1703: my $active=1;
1704: $active = 0 if (($end) && ($now>$end));
1705: $active = 1 if ($ENV{'form.Status'} eq 'Any');
1706: $active = !$active if ($ENV{'form.Status'} eq 'Expired');
1707: if ($active) {
1708: my $rowlabel='';
1709: my ($studentName,$studentDomain)=split(/\:/,$student);
1710: my $studentSection=&Apache::lonnet::usection($studentDomain,
1711: $studentName,$cid);
1712: if ($studentSection==-1) {
1713: unless ($ENV{'form.showcsv'}) {
1714: $rowlabel='<font color=red>Data not available: '.
1715: $studentName.'</font>';
1716: } else {
1717: $rowlabel='ERROR","'.$studentName.
1718: '","Data not available","","","';
1719: }
1720: } else {
1721: my %reply=&Apache::lonnet::idrget($studentDomain,$studentName);
1722: my %studentInformation=&Apache::lonnet::get
1723: ('environment',
1724: ['lastname','generation','firstname','middlename','id'],
1725: $studentDomain,$studentName);
1726: if (! $ENV{'form.showcsv'}) {
1727: $rowlabel='<a href="/adm/studentcalc?uname='.$studentName.
1728: '&udom='.$studentDomain.'">'.
1729: $studentSection.' ';
1730: foreach ('id','firstname','middlename',
1731: 'lastname','generation'){
1732: $rowlabel.=$studentInformation{$_}." ";
1733: }
1734: $rowlabel.='</a>';
1735: } else {
1736: $rowlabel= '"'.join('","',
1737: ($studentSection,
1738: $studentInformation{'id'},
1739: $studentInformation{'firstname'},
1740: $studentInformation{'middlename'},
1741: $studentInformation{'lastname'},
1742: $studentInformation{'generation'})
1743: ).'"';
1744: }
1745: }
1746: $currentlist{$student}=$rowlabel;
1747: } # end of if ($active)
1748: } # end of foreach my $student (keys(%classlist))
1749: #
1750: # Find discrepancies between the course row table and this
1751: #
1752: my %f=&getformulas($safeeval);
1753: my $changed=0;
1754: #
1755: my $maxrow=0;
1756: my %existing=();
1757: #
1758: # Now obsolete rows
1759: foreach (keys(%f)) {
1760: if ($_=~/^A(\d+)/) {
1761: $maxrow=($1>$maxrow)?$1:$maxrow;
1762: $existing{$f{$_}}=1;
1763: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1764: ($f{$_}=~/^(\~\~\~|\-\-\-)/)) {
1765: $f{$_}='!!! Obsolete';
1766: $changed=1;
1767: }
1768: }
1769: }
1770: #
1771: # New and unknown keys
1772: foreach (sort keys(%currentlist)) {
1773: unless ($existing{$_}) {
1774: $changed=1;
1775: $maxrow++;
1776: $f{'A'.$maxrow}=$_;
1777: }
1778: }
1779: if ($changed) { &setformulas($safeeval,%f); }
1780: #
1781: &setmaxrow($safeeval,$maxrow);
1782: &setrowlabels($safeeval,%currentlist);
1783: }
1784:
1785: # ----------------------------------- Update rows for student and assess sheets
1786: sub updatestudentassesssheet {
1787: my ($safeeval,$sheetdata) = @_;
1788: my %bighash;
1789: my $stype=$sheetdata->{'sheettype'};
1790: my $uname=$sheetdata->{'uname'};
1791: my $udom =$sheetdata->{'udom'};
1792: my %current=();
1793: if ($updatedata
1794: {$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}) {
1795: %current=split(/\_\_\_\;\_\_\_/,
1796: $updatedata{$ENV{'request.course.fn'}.
1797: '_'.$stype.'_'.$uname.'_'.$udom});
1798: } else {
1799: # Tie hash
1800: tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1801: &GDBM_READER(),0640);
1802: if (! tied(%bighash)) {
1803: return 'Could not access course data';
1804: }
1805: # Get all assessments
1806: my %allkeys=('timestamp' =>
1807: 'Timestamp of Last Transaction<br>timestamp',
1808: 'subnumber' =>
1809: 'Number of Submissions<br>subnumber',
1810: 'tutornumber' =>
1811: 'Number of Tutor Responses<br>tutornumber',
1812: 'totalpoints' =>
1813: 'Total Points Granted<br>totalpoints');
1814: my $adduserstr='';
1815: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})){
1816: $adduserstr='&uname='.$uname.'&udom='.$udom;
1817: }
1818: my %allassess =
1819: ('_feedback' =>'<a href="/adm/assesscalc?usymb=_feedback'.
1820: $adduserstr.'">Feedback</a>',
1821: '_evaluation' =>'<a href="/adm/assesscalc?usymb=_evaluation'.
1822: $adduserstr.'">Evaluation</a>',
1823: '_tutoring' =>'<a href="/adm/assesscalc?usymb=_tutoring'.
1824: $adduserstr.'">Tutoring</a>',
1825: '_discussion' =>'<a href="/adm/assesscalc?usymb=_discussion'.
1826: $adduserstr.'">Discussion</a>'
1827: );
1828: while (($_,undef) = each(%bighash)) {
1829: next if ($_!~/^src\_(\d+)\.(\d+)$/);
1830: my $mapid=$1;
1831: my $resid=$2;
1832: my $id=$mapid.'.'.$resid;
1833: my $srcf=$bighash{$_};
1834: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1835: my $symb=
1836: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1837: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
1838: $allassess{$symb}=
1839: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1840: $bighash{'title_'.$id}.'</a>';
1841: next if ($stype ne 'assesscalc');
1842: foreach my $key (split(/\,/,
1843: &Apache::lonnet::metadata($srcf,'keys')
1844: )) {
1845: next if ($key !~ /^(stores|parameter)_/);
1846: my $display=
1847: &Apache::lonnet::metadata($srcf,$key.'.display');
1848: unless ($display) {
1849: $display.=
1850: &Apache::lonnet::metadata($srcf,$key.'.name');
1851: }
1852: $display.='<br>'.$key;
1853: $allkeys{$key}=$display;
1854: } # end of foreach
1855: }
1856: } # end of foreach (keys(%bighash))
1857: untie(%bighash);
1858: #
1859: # %allkeys has a list of storage and parameter displays by unikey
1860: # %allassess has a list of all resource displays by symb
1861: #
1862: if ($stype eq 'assesscalc') {
1863: %current=%allkeys;
1864: } elsif ($stype eq 'studentcalc') {
1865: %current=%allassess;
1866: }
1867: $updatedata{$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}=
1868: join('___;___',%current);
1869: # Get current from cache
1870: }
1871: # Find discrepancies between the course row table and this
1872: #
1873: my %f=&getformulas($safeeval);
1874: my $changed=0;
1875:
1876: my $maxrow=0;
1877: my %existing=();
1878: # Now obsolete rows
1879: foreach (keys(%f)) {
1880: next if ($_!~/^A(\d+)/);
1881: $maxrow=($1>$maxrow)?$1:$maxrow;
1882: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1883: $existing{$usy}=1;
1884: unless ((defined($current{$usy})) || (!$1) ||
1885: ($f{$_}=~/^(\~\~\~|\-\-\-)/)){
1886: $f{$_}='!!! Obsolete';
1887: $changed=1;
1888: } elsif ($ufn) {
1889: $current{$usy}
1890: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1891: }
1892: }
1893: # New and unknown keys
1894: foreach (keys(%current)) {
1895: unless ($existing{$_}) {
1896: $changed=1;
1897: $maxrow++;
1898: $f{'A'.$maxrow}=$_;
1899: }
1900: }
1901: if ($changed) { &setformulas($safeeval,%f); }
1902: &setmaxrow($safeeval,$maxrow);
1903: &setrowlabels($safeeval,%current);
1904: #
1905: undef %current;
1906: undef %existing;
1907: }
1908:
1909: # ------------------------------------------------ Load data for one assessment
1910:
1911: sub loadstudent {
1912: my ($safeeval,$sheetdata)=@_;
1913: my %c=();
1914: my %f=&getformulas($safeeval);
1915: $cachedassess=$sheetdata->{'uname'}.':'.$sheetdata->{'udom'};
1916: # Get ALL the student preformance data
1917: my @tmp = &Apache::lonnet::dump($sheetdata->{'cid'},
1918: $sheetdata->{'udom'},
1919: $sheetdata->{'uname'},
1920: undef);
1921: if ($tmp[0] !~ /^error:/) {
1922: %cachedstores = @tmp;
1923: }
1924: undef @tmp;
1925: #
1926: my @assessdata=();
1927: foreach (keys(%f)) {
1928: next if ($_!~/^A(\d+)/);
1929: my $row=$1;
1930: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1931: my ($usy,$ufn)=split(/__&&&\__/,$f{$_});
1932: @assessdata=&exportsheet($sheetdata->{'uname'},
1933: $sheetdata->{'udom'},
1934: 'assesscalc',$usy,$ufn);
1935: my $index=0;
1936: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1937: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1938: if ($assessdata[$index]) {
1939: my $col=$_;
1940: if ($assessdata[$index]=~/\D/) {
1941: $c{$col.$row}="'".$assessdata[$index]."'";
1942: } else {
1943: $c{$col.$row}=$assessdata[$index];
1944: }
1945: unless ($col eq 'A') {
1946: $f{$col.$row}='import';
1947: }
1948: }
1949: $index++;
1950: }
1951: }
1952: $cachedassess='';
1953: undef %cachedstores;
1954: &setformulas($safeeval,%f);
1955: &setconstants($safeeval,%c);
1956: }
1957:
1958: # --------------------------------------------------- Load data for one student
1959:
1960: sub loadcourse {
1961: my ($safeeval,$sheetdata,$r)=@_;
1962: my %c=();
1963: my %f=&getformulas($safeeval);
1964: my $total=0;
1965: foreach (keys(%f)) {
1966: if ($_=~/^A(\d+)/) {
1967: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1968: }
1969: }
1970: my $now=0;
1971: my $since=time;
1972: $r->print(<<ENDPOP);
1973: <script>
1974: popwin=open('','popwin','width=400,height=100');
1975: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1976: '<h3>Spreadsheet Calculation Progress</h3>'+
1977: '<form name=popremain>'+
1978: '<input type=text size=35 name=remaining value=Starting></form>'+
1979: '</body></html>');
1980: popwin.document.close();
1981: </script>
1982: ENDPOP
1983: $r->rflush();
1984: foreach (keys(%f)) {
1985: next if ($_!~/^A(\d+)/);
1986: my $row=$1;
1987: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1988: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1989: 'studentcalc');
1990: undef %userrdatas;
1991: $now++;
1992: $r->print('<script>popwin.document.popremain.remaining.value="'.
1993: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1994: ' secs remaining";</script>');
1995: $r->rflush();
1996: #
1997: my $index=0;
1998: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1999: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
2000: if ($studentdata[$index]) {
2001: my $col=$_;
2002: if ($studentdata[$index]=~/\D/) {
2003: $c{$col.$row}="'".$studentdata[$index]."'";
2004: } else {
2005: $c{$col.$row}=$studentdata[$index];
2006: }
2007: unless ($col eq 'A') {
2008: $f{$col.$row}='import';
2009: }
2010: $index++;
2011: }
2012: }
2013: }
2014: &setformulas($safeeval,%f);
2015: &setconstants($safeeval,%c);
2016: $r->print('<script>popwin.close()</script>');
2017: $r->rflush();
2018: }
2019:
2020: # ------------------------------------------------ Load data for one assessment
2021:
2022: sub loadassessment {
2023: my ($safeeval,$sheetdata)=@_;
2024:
2025: my $uhome = $sheetdata->{'uhome'};
2026: my $uname = $sheetdata->{'uname'};
2027: my $udom = $sheetdata->{'udom'};
2028: my $symb = $sheetdata->{'usymb'};
2029: my $cid = $sheetdata->{'cid'};
2030: my $cnum = $sheetdata->{'cnum'};
2031: my $cdom = $sheetdata->{'cdom'};
2032: my $chome = $sheetdata->{'chome'};
2033:
2034: my $namespace;
2035: unless ($namespace=$cid) { return ''; }
2036: # Get stored values
2037: my %returnhash=();
2038: if ($cachedassess eq $uname.':'.$udom) {
2039: #
2040: # get data out of the dumped stores
2041: #
2042: my $version=$cachedstores{'version:'.$symb};
2043: my $scope;
2044: for ($scope=1;$scope<=$version;$scope++) {
2045: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2046: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2047: }
2048: }
2049: } else {
2050: #
2051: # restore individual
2052: #
2053: my $answer=&Apache::lonnet::reply(
2054: "restore:$udom:$uname:".
2055: &Apache::lonnet::escape($namespace).":".
2056: &Apache::lonnet::escape($symb),$uhome);
2057: foreach (split(/\&/,$answer)) {
2058: my ($name,$value)=split(/\=/,$_);
2059: $returnhash{&Apache::lonnet::unescape($name)}=
2060: &Apache::lonnet::unescape($value);
2061: }
2062: my $version;
2063: for ($version=1;$version<=$returnhash{'version'};$version++) {
2064: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2065: $returnhash{$_}=$returnhash{$version.':'.$_};
2066: }
2067: }
2068: }
2069: # returnhash now has all stores for this resource
2070: # convert all "_" to "." to be able to use libraries, multiparts, etc
2071: my @oldkeys=keys %returnhash;
2072:
2073: foreach (@oldkeys) {
2074: my $name=$_;
2075: my $value=$returnhash{$_};
2076: delete $returnhash{$_};
2077: $name=~s/\_/\./g;
2078: $returnhash{$name}=$value;
2079: }
2080: # initialize coursedata and userdata for this user
2081: undef %courseopt;
2082: undef %useropt;
2083:
2084: my $userprefix=$uname.'_'.$udom.'_';
2085:
2086: unless ($uhome eq 'no_host') {
2087: # Get coursedata
2088: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
2089: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2090: ':resourcedata',$chome);
2091: if ($reply!~/^error\:/) {
2092: $courserdatas{$cid}=$reply;
2093: $courserdatas{$cid.'.last_cache'}=time;
2094: }
2095: }
2096: foreach (split(/\&/,$courserdatas{$cid})) {
2097: my ($name,$value)=split(/\=/,$_);
2098: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2099: &Apache::lonnet::unescape($value);
2100: }
2101: # Get userdata (if present)
2102: unless
2103: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2104: my $reply=
2105: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2106: if ($reply!~/^error\:/) {
2107: $userrdatas{$uname.'___'.$udom}=$reply;
2108: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2109: }
2110: }
2111: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2112: my ($name,$value)=split(/\=/,$_);
2113: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2114: &Apache::lonnet::unescape($value);
2115: }
2116: }
2117: # now courseopt, useropt initialized for this user and course
2118: # (used by parmval)
2119: #
2120: # Load keys for this assessment only
2121: #
2122: my %thisassess=();
2123: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2124: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2125: $thisassess{$_}=1;
2126: }
2127: #
2128: # Load parameters
2129: #
2130: my %c=();
2131: if (tie(%parmhash,'GDBM_File',
2132: &getcfn($safeeval).'_parms.db',&GDBM_READER(),0640)) {
2133: my %f=&getformulas($safeeval);
2134: foreach (keys(%f)) {
2135: next if ($_!~/^A/);
2136: next if ($f{$_}=~/^[\!\~\-]/);
2137: if ($f{$_}=~/^parameter/) {
2138: if ($thisassess{$f{$_}}) {
2139: my $val=&parmval($f{$_},$safeeval,$sheetdata);
2140: $c{$_}=$val;
2141: $c{$f{$_}}=$val;
2142: }
2143: } else {
2144: my $key=$f{$_};
2145: my $ckey=$key;
2146: $key=~s/^stores\_/resource\./;
2147: $key=~s/\_/\./g;
2148: $c{$_}=$returnhash{$key};
2149: $c{$ckey}=$returnhash{$key};
2150: }
2151: }
2152: untie(%parmhash);
2153: }
2154: &setconstants($safeeval,%c);
2155: }
2156:
2157: # --------------------------------------------------------- Various form fields
2158:
2159: sub textfield {
2160: my ($title,$name,$value)=@_;
2161: return "\n<p><b>$title:</b><br>".
2162: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2163: }
2164:
2165: sub hiddenfield {
2166: my ($name,$value)=@_;
2167: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2168: }
2169:
2170: sub selectbox {
2171: my ($title,$name,$value,%options)=@_;
2172: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2173: foreach (sort keys(%options)) {
2174: $selout.='<option value="'.$_.'"';
2175: if ($_ eq $value) { $selout.=' selected'; }
2176: $selout.='>'.$options{$_}.'</option>';
2177: }
2178: return $selout.'</select>';
2179: }
2180:
2181: # =============================================== Update information in a sheet
2182: #
2183: # Add new users or assessments, etc.
2184: #
2185:
2186: sub updatesheet {
2187: my ($safeeval,$sheetdata)=@_;
2188: my $stype=$sheetdata->{'sheettype'};
2189: if ($stype eq 'classcalc') {
2190: return &updateclasssheet($safeeval,$sheetdata);
2191: } else {
2192: return &updatestudentassesssheet($safeeval,$sheetdata);
2193: }
2194: }
2195:
2196: # =================================================== Load the rows for a sheet
2197: #
2198: # Import the data for rows
2199: #
2200:
2201: sub loadrows {
2202: my ($safeeval,$sheetdata,$r)=@_;
2203: my $stype=$sheetdata->{'sheettype'};
2204: if ($stype eq 'classcalc') {
2205: &loadcourse($safeeval,$sheetdata,$r);
2206: } elsif ($stype eq 'studentcalc') {
2207: &loadstudent($safeeval,$sheetdata);
2208: } else {
2209: &loadassessment($safeeval,$sheetdata);
2210: }
2211: }
2212:
2213: # ======================================================= Forced recalculation?
2214:
2215: sub checkthis {
2216: my ($keyname,$time)=@_;
2217: return ($time<$expiredates{$keyname});
2218: }
2219:
2220: sub forcedrecalc {
2221: my ($uname,$udom,$stype,$usymb)=@_;
2222: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2223: my $time=$oldsheets{$key.'.time'};
2224: if ($ENV{'form.forcerecalc'}) { return 1; }
2225: unless ($time) { return 1; }
2226: if ($stype eq 'assesscalc') {
2227: my $map=(split(/\_\_\_/,$usymb))[0];
2228: if (&checkthis('::assesscalc:',$time) ||
2229: &checkthis('::assesscalc:'.$map,$time) ||
2230: &checkthis('::assesscalc:'.$usymb,$time) ||
2231: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2232: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2233: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2234: return 1;
2235: }
2236: } else {
2237: if (&checkthis('::studentcalc:',$time) ||
2238: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2239: return 1;
2240: }
2241: }
2242: return 0;
2243: }
2244:
2245: # ============================================================== Export handler
2246: #
2247: # Non-interactive call from with program
2248: #
2249:
2250: sub exportsheet {
2251: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2252: my @exportarr=();
2253: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2254: $fn='default_'.$1;
2255: }
2256: #
2257: # Check if cached
2258: #
2259: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2260: my $found='';
2261: if ($oldsheets{$key}) {
2262: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2263: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2264: if ($name eq $fn) {
2265: $found=$value;
2266: }
2267: }
2268: }
2269: unless ($found) {
2270: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2271: if ($oldsheets{$key}) {
2272: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2273: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2274: if ($name eq $fn) {
2275: $found=$value;
2276: }
2277: }
2278: }
2279: }
2280: #
2281: # Check if still valid
2282: #
2283: if ($found) {
2284: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2285: $found='';
2286: }
2287: }
2288: if ($found) {
2289: #
2290: # Return what was cached
2291: #
2292: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2293: } else {
2294: #
2295: # Not cached
2296: #
2297: my ($thissheet,$sheetdata)=&makenewsheet($uname,$udom,$stype,$usymb);
2298: &readsheet($thissheet,$sheetdata,$fn);
2299: &updatesheet($thissheet,$sheetdata);
2300: &loadrows($thissheet,$sheetdata);
2301: &calcsheet($thissheet,$sheetdata);
2302: @exportarr=&exportdata($thissheet,$sheetdata);
2303: #
2304: # Store now
2305: #
2306: my $cid=$ENV{'request.course.id'};
2307: my $current='';
2308: if ($stype eq 'studentcalc') {
2309: $current=&Apache::lonnet::reply('get:'.
2310: $ENV{'course.'.$cid.'.domain'}.':'.
2311: $ENV{'course.'.$cid.'.num'}.
2312: ':nohist_calculatedsheets:'.
2313: &Apache::lonnet::escape($key),
2314: $ENV{'course.'.$cid.'.home'});
2315: } else {
2316: $current=&Apache::lonnet::reply('get:'.$sheetdata->{'udom'}.':'.
2317: $sheetdata->{'uname'}.
2318: ':nohist_calculatedsheets_'.
2319: $ENV{'request.course.id'}.':'.
2320: &Apache::lonnet::escape($key),
2321: $sheetdata->{'uhome'});
2322: }
2323: my %currentlystored=();
2324: unless ($current=~/^error\:/) {
2325: foreach (split(/___&\___/,&Apache::lonnet::unescape($current))) {
2326: my ($name,$value)=split(/___=___/,$_);
2327: $currentlystored{$name}=$value;
2328: }
2329: }
2330: $currentlystored{$fn}=join('___;___',@exportarr);
2331: #
2332: my $newstore='';
2333: foreach (keys(%currentlystored)) {
2334: if ($newstore) { $newstore.='___&___'; }
2335: $newstore.=$_.'___=___'.$currentlystored{$_};
2336: }
2337: my $now=time;
2338: if ($stype eq 'studentcalc') {
2339: &Apache::lonnet::reply('put:'.
2340: $ENV{'course.'.$cid.'.domain'}.':'.
2341: $ENV{'course.'.$cid.'.num'}.
2342: ':nohist_calculatedsheets:'.
2343: &Apache::lonnet::escape($key).'='.
2344: &Apache::lonnet::escape($newstore).'&'.
2345: &Apache::lonnet::escape($key).'.time='.$now,
2346: $ENV{'course.'.$cid.'.home'});
2347: } else {
2348: &Apache::lonnet::reply('put:'.
2349: $sheetdata->{'udom'}.':'.
2350: $sheetdata->{'uname'}.
2351: ':nohist_calculatedsheets_'.
2352: $ENV{'request.course.id'}.':'.
2353: &Apache::lonnet::escape($key).'='.
2354: &Apache::lonnet::escape($newstore).'&'.
2355: &Apache::lonnet::escape($key).'.time='.$now,
2356: $sheetdata->{'uhome'});
2357: }
2358: }
2359: return @exportarr;
2360: }
2361:
2362: # ============================================================ Expiration Dates
2363: #
2364: # Load previously cached student spreadsheets for this course
2365: #
2366: sub expirationdates {
2367: undef %expiredates;
2368: my $cid=$ENV{'request.course.id'};
2369: my $reply=&Apache::lonnet::reply('dump:'.
2370: $ENV{'course.'.$cid.'.domain'}.':'.
2371: $ENV{'course.'.$cid.'.num'}.
2372: ':nohist_expirationdates',
2373: $ENV{'course.'.$cid.'.home'});
2374: unless ($reply=~/^error\:/) {
2375: foreach (split(/\&/,$reply)) {
2376: my ($name,$value)=split(/\=/,$_);
2377: $expiredates{&Apache::lonnet::unescape($name)}
2378: =&Apache::lonnet::unescape($value);
2379: }
2380: }
2381: }
2382:
2383: # ===================================================== Calculated sheets cache
2384: #
2385: # Load previously cached student spreadsheets for this course
2386: #
2387:
2388: sub cachedcsheets {
2389: my $cid=$ENV{'request.course.id'};
2390: my $reply=&Apache::lonnet::reply('dump:'.
2391: $ENV{'course.'.$cid.'.domain'}.':'.
2392: $ENV{'course.'.$cid.'.num'}.
2393: ':nohist_calculatedsheets',
2394: $ENV{'course.'.$cid.'.home'});
2395: unless ($reply=~/^error\:/) {
2396: foreach ( split(/\&/,$reply)) {
2397: my ($name,$value)=split(/\=/,$_);
2398: $oldsheets{&Apache::lonnet::unescape($name)}
2399: =&Apache::lonnet::unescape($value);
2400: }
2401: }
2402: }
2403:
2404: # ===================================================== Calculated sheets cache
2405: #
2406: # Load previously cached assessment spreadsheets for this student
2407: #
2408:
2409: sub cachedssheets {
2410: my ($sname,$sdom,$shome)=@_;
2411: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2412: my $cid=$ENV{'request.course.id'};
2413: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2414: ':nohist_calculatedsheets_'.
2415: $ENV{'request.course.id'},
2416: $shome);
2417: unless ($reply=~/^error\:/) {
2418: foreach ( split(/\&/,$reply)) {
2419: my ($name,$value)=split(/\=/,$_);
2420: $oldsheets{&Apache::lonnet::unescape($name)}
2421: =&Apache::lonnet::unescape($value);
2422: }
2423: }
2424: $loadedcaches{$sname.'_'.$sdom}=1;
2425: }
2426: }
2427:
2428: # ===================================================== Calculated sheets cache
2429: #
2430: # Load previously cached assessment spreadsheets for this student
2431: #
2432:
2433: # ================================================================ Main handler
2434: #
2435: # Interactive call to screen
2436: #
2437: #
2438:
2439:
2440: sub handler {
2441: my $r=shift;
2442: if ($r->header_only) {
2443: $r->content_type('text/html');
2444: $r->send_http_header;
2445: return OK;
2446: }
2447: # Global directory configs
2448: $includedir = $r->dir_config('lonIncludes');
2449: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
2450: # Needs to be in a course
2451: if (! $ENV{'request.course.fn'}) {
2452: # Not in a course, or not allowed to modify parms
2453: $ENV{'user.error.msg'}=
2454: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2455: return HTTP_NOT_ACCEPTABLE;
2456: }
2457: # Get query string for limited number of parameters
2458: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2459: ['uname','udom','usymb','ufn']);
2460: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2461: $ENV{'form.ufn'}='default_'.$1;
2462: }
2463: # Interactive loading of specific sheet?
2464: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2465: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2466: }
2467: #
2468: # Determine the user name and domain for the sheet.
2469: my $aname;
2470: my $adom;
2471: unless ($ENV{'form.uname'}) {
2472: $aname=$ENV{'user.name'};
2473: $adom=$ENV{'user.domain'};
2474: } else {
2475: $aname=$ENV{'form.uname'};
2476: $adom=$ENV{'form.udom'};
2477: }
2478: #
2479: # Open page
2480: $r->content_type('text/html');
2481: $r->header_out('Cache-control','no-cache');
2482: $r->header_out('Pragma','no-cache');
2483: $r->send_http_header;
2484: # Screen output
2485: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2486: $r->print(<<ENDSCRIPT);
2487: <script language="JavaScript">
2488:
2489: function celledit(cn,cf) {
2490: var cnf=prompt(cn,cf);
2491: if (cnf!=null) {
2492: document.sheet.unewfield.value=cn;
2493: document.sheet.unewformula.value=cnf;
2494: document.sheet.submit();
2495: }
2496: }
2497:
2498: function changesheet(cn) {
2499: document.sheet.unewfield.value=cn;
2500: document.sheet.unewformula.value='changesheet';
2501: document.sheet.submit();
2502: }
2503:
2504: function insertrow(cn) {
2505: document.sheet.unewfield.value='insertrow';
2506: document.sheet.unewformula.value=cn;
2507: document.sheet.submit();
2508: }
2509:
2510: </script>
2511: ENDSCRIPT
2512: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
2513: '<form action="'.$r->uri.'" name=sheet method=post>');
2514: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
2515: &hiddenfield('udom',$ENV{'form.udom'}).
2516: &hiddenfield('usymb',$ENV{'form.usymb'}).
2517: &hiddenfield('unewfield','').
2518: &hiddenfield('unewformula',''));
2519: $r->rflush();
2520: #
2521: # Full recalc?
2522: if ($ENV{'form.forcerecalc'}) {
2523: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2524: undef %spreadsheets;
2525: undef %courserdatas;
2526: undef %userrdatas;
2527: undef %defaultsheets;
2528: undef %updatedata;
2529: }
2530: # Read new sheet or modified worksheet
2531: $r->uri=~/\/(\w+)$/;
2532: my ($asheet,$asheetdata)=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2533: #
2534: # If a new formula had been entered, go from work copy
2535: if ($ENV{'form.unewfield'}) {
2536: $r->print('<h2>Modified Workcopy</h2>');
2537: $ENV{'form.unewformula'}=~s/\'/\"/g;
2538: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2539: $ENV{'form.unewformula'}.'<p>');
2540: &setfilename($asheet,$ENV{'form.ufn'});
2541: &tmpread($asheet,$ENV{'form.unewfield'},$ENV{'form.unewformula'});
2542: } elsif ($ENV{'form.saveas'}) {
2543: &setfilename($asheet,$ENV{'form.ufn'});
2544: &tmpread($asheet);
2545: } else {
2546: &readsheet($asheet,$asheetdata,$ENV{'form.ufn'});
2547: }
2548: # Print out user information
2549: unless ($asheetdata->{'sheettype'} eq 'classcalc') {
2550: $r->print('<p><b>User:</b> '.$asheetdata->{'uname'}.
2551: '<br><b>Domain:</b> '.$asheetdata->{'udom'});
2552: if (&getcsec($asheet) eq '-1') {
2553: $r->print('<h3><font color=red>'.
2554: 'Not a student in this course</font></h3>');
2555: } else {
2556: $r->print('<br><b>Section/Group:</b> '.$asheetdata->{'csec'});
2557: }
2558: if ($ENV{'form.usymb'}) {
2559: $r->print('<br><b>Assessment:</b> <tt>'.
2560: $ENV{'form.usymb'}.'</tt>');
2561: }
2562: }
2563: #
2564: # Check user permissions
2565: if (($asheetdata->{'sheettype'} eq 'classcalc' ) ||
2566: ($asheetdata->{'uname'} ne $ENV{'user.name'} ) ||
2567: ($asheetdata->{'udom'} ne $ENV{'user.domain'})) {
2568: unless (&Apache::lonnet::allowed('vgr',$asheetdata->{'cid'})) {
2569: $r->print('<h1>Access Permission Denied</h1>'.
2570: '</form></body></html>');
2571: return OK;
2572: }
2573: }
2574: # Additional options
2575: $r->print('<br />'.
2576: '<input type="submit" name="forcerecalc" '.
2577: 'value="Completely Recalculate Sheet"><p>');
2578: if ($asheetdata->{'sheettype'} eq 'assesscalc') {
2579: $r->print('<p><font size=+2>'.
2580: '<a href="/adm/studentcalc?'.
2581: 'uname='.$asheetdata->{'uname'}.
2582: '&udom='.$asheetdata->{'udom'}.'">'.
2583: 'Level up: Student Sheet</a></font><p>');
2584: }
2585: if (($asheetdata->{'sheettype'} eq 'studentcalc') &&
2586: (&Apache::lonnet::allowed('vgr',$asheetdata->{'cid'}))) {
2587: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
2588: 'Level up: Course Sheet</a></font><p>');
2589: }
2590: # Save dialog
2591: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2592: my $fname=$ENV{'form.ufn'};
2593: $fname=~s/\_[^\_]+$//;
2594: if ($fname eq 'default') { $fname='course_default'; }
2595: $r->print('<input type=submit name=saveas value="Save as ...">'.
2596: '<input type=text size=20 name=newfn value="'.$fname.'">'.
2597: 'make default: <input type=checkbox name="makedefufn"><p>');
2598: }
2599: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2600: # Load dialog
2601: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2602: $r->print('<p><input type=submit name=load value="Load ...">'.
2603: '<select name="loadthissheet">'.
2604: '<option name="default">Default</option>');
2605: foreach (&othersheets($asheet,$asheetdata->{'sheettype'})) {
2606: $r->print('<option name="'.$_.'"');
2607: if ($ENV{'form.ufn'} eq $_) {
2608: $r->print(' selected');
2609: }
2610: $r->print('>'.$_.'</option>');
2611: }
2612: $r->print('</select><p>');
2613: if (&gettype($asheet) eq 'studentcalc') {
2614: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2615: }
2616: }
2617: # Cached sheets
2618: &expirationdates();
2619: undef %oldsheets;
2620: undef %loadedcaches;
2621: if ($asheetdata->{'sheettype'} eq 'classcalc') {
2622: $r->print("Loading previously calculated student sheets ...\n");
2623: $r->rflush();
2624: &cachedcsheets();
2625: } elsif ($asheetdata->{'sheettype'} eq 'studentcalc') {
2626: $r->print("Loading previously calculated assessment sheets ...\n");
2627: $r->rflush();
2628: &cachedssheets($asheetdata->{'uname'},$asheetdata->{'udom'},
2629: $asheetdata->{'uhome'});
2630: }
2631: # Update sheet, load rows
2632: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2633: $r->rflush();
2634: #
2635: &updatesheet($asheet,$asheetdata);
2636: $r->print("Updated rows, loading row data ...\n");
2637: $r->rflush();
2638: #
2639: &loadrows($asheet,$asheetdata,$r);
2640: $r->print("Loaded row data, calculating sheet ...<br>\n");
2641: $r->rflush();
2642: #
2643: my $calcoutput=&calcsheet($asheet);
2644: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2645: # See if something to save
2646: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2647: my $fname='';
2648: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2649: $fname=~s/\W/\_/g;
2650: if ($fname eq 'default') { $fname='course_default'; }
2651: $fname.='_'.$asheetdata->{'sheettype'};
2652: &setfilename($asheet,$fname);
2653: $ENV{'form.ufn'}=$fname;
2654: $r->print('<p>Saving spreadsheet: '.
2655: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2656: }
2657: }
2658: #
2659: #Write the modified worksheet
2660: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2661: &tmpwrite($asheet);
2662: if ($asheetdata->{'sheettype'} eq 'studentcalc') {
2663: $r->print('<br>Show rows with empty A column: ');
2664: } else {
2665: $r->print('<br>Show empty rows: ');
2666: }
2667: #
2668: $r->print(&hiddenfield('userselhidden','true').
2669: '<input type="checkbox" name="showall" onClick="submit()"');
2670: #
2671: if ($ENV{'form.showall'}) {
2672: $r->print(' checked');
2673: } else {
2674: unless ($ENV{'form.userselhidden'}) {
2675: unless
2676: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2677: $r->print(' checked');
2678: $ENV{'form.showall'}=1;
2679: }
2680: }
2681: }
2682: $r->print('>');
2683: #
2684: # CSV format checkbox (classcalc sheets only)
2685: if ($asheetdata->{'sheettype'} eq 'classcalc') {
2686: $r->print(' Output CSV format: <input type="checkbox" '.
2687: 'name="showcsv" onClick="submit()"');
2688: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2689: $r->print('>');
2690: }
2691: #
2692: # Buttons to insert rows
2693: $r->print(' Student Status: '.
2694: &Apache::lonhtmlcommon::StatusOptions
2695: ($ENV{'form.Status'},'sheet'));
2696: $r->print(<<ENDINSERTBUTTONS);
2697: <br>
2698: <input type='button' onClick='insertrow("top");'
2699: value='Insert Row Top'>
2700: <input type='button' onClick='insertrow("bottom");'
2701: value='Insert Row Bottom'><br>
2702: ENDINSERTBUTTONS
2703: # Print out sheet
2704: &outsheet($r,$asheet,$asheetdata);
2705: $r->print('</form></body></html>');
2706: # Done
2707: return OK;
2708: }
2709:
2710: 1;
2711: __END__
2712:
2713:
2714:
2715:
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