1: #
2: # $Id: lonspreadsheet.pm,v 1.156 2002/12/09 14:50:11 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 Apache::Constants qw(:common :http);
57: use Apache::lonnet;
58: use Apache::lonhtmlcommon;
59: use Apache::loncoursedata;
60: use Apache::File();
61: use Safe;
62: use Safe::Hole;
63: use Opcode;
64: use GDBM_File;
65: use HTML::Entities();
66: use HTML::TokeParser;
67: use Spreadsheet::WriteExcel;
68:
69: #
70: # Caches for coursewide information
71: #
72: my %Section;
73:
74: #
75: # Caches for previously calculated spreadsheets
76: #
77:
78: my %oldsheets;
79: my %loadedcaches;
80: my %expiredates;
81:
82: #
83: # Cache for stores of an individual user
84: #
85:
86: my $cachedassess;
87: my %cachedstores;
88:
89: #
90: # These cache hashes need to be independent of user, resource and course
91: # (user and course can/should be in the keys)
92: #
93:
94: my %spreadsheets;
95: my %courserdatas;
96: my %userrdatas;
97: my %defaultsheets;
98: my %rowlabel_cache;
99:
100: #
101: # These global hashes are dependent on user, course and resource,
102: # and need to be initialized every time when a sheet is calculated
103: #
104: my %courseopt;
105: my %useropt;
106: my %parmhash;
107:
108: #
109: # Some hashes for stats on timing and performance
110: #
111:
112: my %starttimes;
113: my %usedtimes;
114: my %numbertimes;
115:
116: # Stuff that only the screen handler can know
117:
118: my $includedir;
119: my $tmpdir;
120:
121: # =============================================================================
122: # ===================================== Implements an instance of a spreadsheet
123:
124: ##
125: ## mask - used to reside in the safe space.
126: ##
127: sub mask {
128: my ($lower,$upper)=@_;
129: $upper = $lower if (! defined($upper));
130: #
131: my ($la,$ld) = ($lower=~/([A-Za-z]|\*)(\d+|\*)/);
132: my ($ua,$ud) = ($upper=~/([A-Za-z]|\*)(\d+|\*)/);
133: #
134: my $alpha='';
135: my $num='';
136: #
137: if (($la eq '*') || ($ua eq '*')) {
138: $alpha='[A-Za-z]';
139: } else {
140: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
141: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
142: $alpha='['.$la.'-'.$ua.']';
143: } else {
144: $alpha='['.$la.'-Za-'.$ua.']';
145: }
146: }
147: if (($ld eq '*') || ($ud eq '*')) {
148: $num='\d+';
149: } else {
150: if (length($ld)!=length($ud)) {
151: $num.='(';
152: foreach ($ld=~m/\d/g) {
153: $num.='['.$_.'-9]';
154: }
155: if (length($ud)-length($ld)>1) {
156: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
157: }
158: $num.='|';
159: foreach ($ud=~m/\d/g) {
160: $num.='[0-'.$_.']';
161: }
162: $num.=')';
163: } else {
164: my @lda=($ld=~m/\d/g);
165: my @uda=($ud=~m/\d/g);
166: my $i;
167: my $j=0;
168: my $notdone=1;
169: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
170: if ($lda[$i]==$uda[$i]) {
171: $num.=$lda[$i];
172: $j=$i;
173: } else {
174: $notdone=0;
175: }
176: }
177: if ($j<$#lda-1) {
178: $num.='('.$lda[$j+1];
179: for ($i=$j+2;$i<=$#lda;$i++) {
180: $num.='['.$lda[$i].'-9]';
181: }
182: if ($uda[$j+1]-$lda[$j+1]>1) {
183: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
184: ($#lda-$j-1).'}';
185: }
186: $num.='|'.$uda[$j+1];
187: for ($i=$j+2;$i<=$#uda;$i++) {
188: $num.='[0-'.$uda[$i].']';
189: }
190: $num.=')';
191: } else {
192: if ($lda[-1]!=$uda[-1]) {
193: $num.='['.$lda[-1].'-'.$uda[-1].']';
194: }
195: }
196: }
197: }
198: return '^'.$alpha.$num."\$";
199: }
200:
201: sub initsheet {
202: my $safeeval = new Safe(shift);
203: my $safehole = new Safe::Hole;
204: $safeeval->permit("entereval");
205: $safeeval->permit(":base_math");
206: $safeeval->permit("sort");
207: $safeeval->deny(":base_io");
208: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
209: $safehole->wrap(\&Apache::lonspreadsheet::mask,$safeeval,'&mask');
210: $safeeval->share('$@');
211: my $code=<<'ENDDEFS';
212: # ---------------------------------------------------- Inside of the safe space
213:
214: #
215: # f: formulas
216: # t: intermediate format (variable references expanded)
217: # v: output values
218: # c: preloaded constants (A-column)
219: # rl: row label
220: # os: other spreadsheets (for student spreadsheet only)
221:
222: undef %sheet_values; # Holds the (computed, final) values for the sheet
223: # This is only written to by &calc, the spreadsheet computation routine.
224: # It is read by many functions
225: undef %t; # Holds the values of the spreadsheet temporarily. Set in &sett,
226: # which does the translation of strings like C5 into the value in C5.
227: # Used in &calc - %t holds the values that are actually eval'd.
228: undef %f; # Holds the formulas for each cell. This is the users
229: # (spreadsheet authors) data for each cell.
230: # set by &setformulas and returned by &getformulas
231: # &setformulas is called by &readsheet, &tmpread, &updateclasssheet,
232: # &updatestudentassesssheet, &loadstudent, &loadcourse
233: # &getformulas is called by &writesheet, &tmpwrite, &updateclasssheet,
234: # &updatestudentassesssheet, &loadstudent, &loadcourse, &loadassessment,
235: undef %c; # Holds the constants for a sheet. In the assessment
236: # sheets, this is the A column. Used in &MINPARM, &MAXPARM, &expandnamed,
237: # &sett, and &setconstants. There is no &getconstants.
238: # &setconstants is called by &loadstudent, &loadcourse, &load assessment,
239: undef @os; # Holds the names of other spreadsheets - this is used to specify
240: # the spreadsheets that are available for the assessment sheet.
241: # Set by &setothersheets. &setothersheets is called by &handler. A
242: # related subroutine is &othersheets.
243: #$errorlog = '';
244:
245: $maxrow = 0;
246: $sheettype = '';
247:
248: # filename/reference of the sheet
249: $filename = '';
250:
251: # user data
252: $uname = '';
253: $uhome = '';
254: $udom = '';
255:
256: # course data
257:
258: $csec = '';
259: $chome= '';
260: $cnum = '';
261: $cdom = '';
262: $cid = '';
263: $coursefilename = '';
264:
265: # symb
266:
267: $usymb = '';
268:
269: # error messages
270: $errormsg = '';
271:
272:
273: #-------------------------------------------------------
274:
275: =item UWCALC(hashname,modules,units,date)
276:
277: returns the proportion of the module
278: weights not previously completed by the student.
279:
280: =over 4
281:
282: =item hashname
283:
284: name of the hash the module dates have been inserted into
285:
286: =item modules
287:
288: reference to a cell which contains a comma deliminated list of modules
289: covered by the assignment.
290:
291: =item units
292:
293: reference to a cell which contains a comma deliminated list of module
294: weights with respect to the assignment
295:
296: =item date
297:
298: reference to a cell which contains the date the assignment was completed.
299:
300: =back
301:
302: =cut
303:
304: #-------------------------------------------------------
305: sub UWCALC {
306: my ($hashname,$modules,$units,$date) = @_;
307: my @Modules = split(/,/,$modules);
308: my @Units = split(/,/,$units);
309: my $total_weight;
310: foreach (@Units) {
311: $total_weight += $_;
312: }
313: my $usum=0;
314: for (my $i=0; $i<=$#Modules; $i++) {
315: if (&HASH($hashname,$Modules[$i]) eq $date) {
316: $usum += $Units[$i];
317: }
318: }
319: return $usum/$total_weight;
320: }
321:
322: #-------------------------------------------------------
323:
324: =item CDLSUM(list)
325:
326: returns the sum of the elements in a cell which contains
327: a Comma Deliminate List of numerical values.
328: 'list' is a reference to a cell which contains a comma deliminated list.
329:
330: =cut
331:
332: #-------------------------------------------------------
333: sub CDLSUM {
334: my ($list)=@_;
335: my $sum;
336: foreach (split/,/,$list) {
337: $sum += $_;
338: }
339: return $sum;
340: }
341:
342: #-------------------------------------------------------
343:
344: =item CDLITEM(list,index)
345:
346: returns the item at 'index' in a Comma Deliminated List.
347:
348: =over 4
349:
350: =item list
351:
352: reference to a cell which contains a comma deliminated list.
353:
354: =item index
355:
356: the Perl index of the item requested (first element in list has
357: an index of 0)
358:
359: =back
360:
361: =cut
362:
363: #-------------------------------------------------------
364: sub CDLITEM {
365: my ($list,$index)=@_;
366: my @Temp = split/,/,$list;
367: return $Temp[$index];
368: }
369:
370: #-------------------------------------------------------
371:
372: =item CDLHASH(name,key,value)
373:
374: loads a comma deliminated list of keys into
375: the hash 'name', all with a value of 'value'.
376:
377: =over 4
378:
379: =item name
380:
381: name of the hash.
382:
383: =item key
384:
385: (a pointer to) a comma deliminated list of keys.
386:
387: =item value
388:
389: a single value to be entered for each key.
390:
391: =back
392:
393: =cut
394:
395: #-------------------------------------------------------
396: sub CDLHASH {
397: my ($name,$key,$value)=@_;
398: my @Keys;
399: my @Values;
400: # Check to see if we have multiple $key values
401: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
402: my $keymask = &mask($key);
403: # Assume the keys are addresses
404: my @Temp = grep /$keymask/,keys(%sheet_values);
405: @Keys = $sheet_values{@Temp};
406: } else {
407: $Keys[0]= $key;
408: }
409: my @Temp;
410: foreach $key (@Keys) {
411: @Temp = (@Temp, split/,/,$key);
412: }
413: @Keys = @Temp;
414: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
415: my $valmask = &mask($value);
416: my @Temp = grep /$valmask/,keys(%sheet_values);
417: @Values =$sheet_values{@Temp};
418: } else {
419: $Values[0]= $value;
420: }
421: $value = $Values[0];
422: # Add values to hash
423: for (my $i = 0; $i<=$#Keys; $i++) {
424: my $key = $Keys[$i];
425: if (! exists ($hashes{$name}->{$key})) {
426: $hashes{$name}->{$key}->[0]=$value;
427: } else {
428: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
429: $hashes{$name}->{$key} = \@Temp;
430: }
431: }
432: return "hash '$name' updated";
433: }
434:
435: #-------------------------------------------------------
436:
437: =item GETHASH(name,key,index)
438:
439: returns the element in hash 'name'
440: reference by the key 'key', at index 'index' in the values list.
441:
442: =cut
443:
444: #-------------------------------------------------------
445: sub GETHASH {
446: my ($name,$key,$index)=@_;
447: if (! defined($index)) {
448: $index = 0;
449: }
450: if ($key =~ /^[A-z]\d+$/) {
451: $key = $sheet_values{$key};
452: }
453: return $hashes{$name}->{$key}->[$index];
454: }
455:
456: #-------------------------------------------------------
457:
458: =item CLEARHASH(name)
459:
460: clears all the values from the hash 'name'
461:
462: =item CLEARHASH(name,key)
463:
464: clears all the values from the hash 'name' associated with the given key.
465:
466: =cut
467:
468: #-------------------------------------------------------
469: sub CLEARHASH {
470: my ($name,$key)=@_;
471: if (defined($key)) {
472: if (exists($hashes{$name}->{$key})) {
473: $hashes{$name}->{$key}=undef;
474: return "hash '$name' key '$key' cleared";
475: }
476: } else {
477: if (exists($hashes{$name})) {
478: $hashes{$name}=undef;
479: return "hash '$name' cleared";
480: }
481: }
482: return "Error in clearing hash";
483: }
484:
485: #-------------------------------------------------------
486:
487: =item HASH(name,key,value)
488:
489: loads values into an internal hash. If a key
490: already has a value associated with it, the values are sorted numerically.
491:
492: =item HASH(name,key)
493:
494: returns the 0th value in the hash 'name' associated with 'key'.
495:
496: =cut
497:
498: #-------------------------------------------------------
499: sub HASH {
500: my ($name,$key,$value)=@_;
501: my @Keys;
502: undef @Keys;
503: my @Values;
504: # Check to see if we have multiple $key values
505: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
506: my $keymask = &mask($key);
507: # Assume the keys are addresses
508: my @Temp = grep /$keymask/,keys(%sheet_values);
509: @Keys = $sheet_values{@Temp};
510: } else {
511: $Keys[0]= $key;
512: }
513: # If $value is empty, return the first value associated
514: # with the first key.
515: if (! $value) {
516: return $hashes{$name}->{$Keys[0]}->[0];
517: }
518: # Check to see if we have multiple $value(s)
519: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
520: my $valmask = &mask($value);
521: my @Temp = grep /$valmask/,keys(%sheet_values);
522: @Values =$sheet_values{@Temp};
523: } else {
524: $Values[0]= $value;
525: }
526: # Add values to hash
527: for (my $i = 0; $i<=$#Keys; $i++) {
528: my $key = $Keys[$i];
529: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
530: if (! exists ($hashes{$name}->{$key})) {
531: $hashes{$name}->{$key}->[0]=$value;
532: } else {
533: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
534: $hashes{$name}->{$key} = \@Temp;
535: }
536: }
537: return $Values[-1];
538: }
539:
540: #-------------------------------------------------------
541:
542: =item NUM(range)
543:
544: returns the number of items in the range.
545:
546: =cut
547:
548: #-------------------------------------------------------
549: sub NUM {
550: my $mask=mask(@_);
551: my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
552: return $num;
553: }
554:
555: sub BIN {
556: my ($low,$high,$lower,$upper)=@_;
557: my $mask=mask($lower,$upper);
558: my $num=0;
559: foreach (grep /$mask/,keys(%sheet_values)) {
560: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
561: $num++;
562: }
563: }
564: return $num;
565: }
566:
567:
568: #-------------------------------------------------------
569:
570: =item SUM(range)
571:
572: returns the sum of items in the range.
573:
574: =cut
575:
576: #-------------------------------------------------------
577: sub SUM {
578: my $mask=mask(@_);
579: my $sum=0;
580: foreach (grep /$mask/,keys(%sheet_values)) {
581: $sum+=$sheet_values{$_};
582: }
583: return $sum;
584: }
585:
586: #-------------------------------------------------------
587:
588: =item MEAN(range)
589:
590: compute the average of the items in the range.
591:
592: =cut
593:
594: #-------------------------------------------------------
595: sub MEAN {
596: my $mask=mask(@_);
597: my $sum=0;
598: my $num=0;
599: foreach (grep /$mask/,keys(%sheet_values)) {
600: $sum+=$sheet_values{$_};
601: $num++;
602: }
603: if ($num) {
604: return $sum/$num;
605: } else {
606: return undef;
607: }
608: }
609:
610: #-------------------------------------------------------
611:
612: =item STDDEV(range)
613:
614: compute the standard deviation of the items in the range.
615:
616: =cut
617:
618: #-------------------------------------------------------
619: sub STDDEV {
620: my $mask=mask(@_);
621: my $sum=0; my $num=0;
622: foreach (grep /$mask/,keys(%sheet_values)) {
623: $sum+=$sheet_values{$_};
624: $num++;
625: }
626: unless ($num>1) { return undef; }
627: my $mean=$sum/$num;
628: $sum=0;
629: foreach (grep /$mask/,keys(%sheet_values)) {
630: $sum+=($sheet_values{$_}-$mean)**2;
631: }
632: return sqrt($sum/($num-1));
633: }
634:
635: #-------------------------------------------------------
636:
637: =item PROD(range)
638:
639: compute the product of the items in the range.
640:
641: =cut
642:
643: #-------------------------------------------------------
644: sub PROD {
645: my $mask=mask(@_);
646: my $prod=1;
647: foreach (grep /$mask/,keys(%sheet_values)) {
648: $prod*=$sheet_values{$_};
649: }
650: return $prod;
651: }
652:
653: #-------------------------------------------------------
654:
655: =item MAX(range)
656:
657: compute the maximum of the items in the range.
658:
659: =cut
660:
661: #-------------------------------------------------------
662: sub MAX {
663: my $mask=mask(@_);
664: my $max='-';
665: foreach (grep /$mask/,keys(%sheet_values)) {
666: unless ($max) { $max=$sheet_values{$_}; }
667: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
668: }
669: return $max;
670: }
671:
672: #-------------------------------------------------------
673:
674: =item MIN(range)
675:
676: compute the minimum of the items in the range.
677:
678: =cut
679:
680: #-------------------------------------------------------
681: sub MIN {
682: my $mask=mask(@_);
683: my $min='-';
684: foreach (grep /$mask/,keys(%sheet_values)) {
685: unless ($max) { $max=$sheet_values{$_}; }
686: if (($sheet_values{$_}<$min) || ($min eq '-')) {
687: $min=$sheet_values{$_};
688: }
689: }
690: return $min;
691: }
692:
693: #-------------------------------------------------------
694:
695: =item SUMMAX(num,lower,upper)
696:
697: compute the sum of the largest 'num' items in the range from
698: 'lower' to 'upper'
699:
700: =cut
701:
702: #-------------------------------------------------------
703: sub SUMMAX {
704: my ($num,$lower,$upper)=@_;
705: my $mask=mask($lower,$upper);
706: my @inside=();
707: foreach (grep /$mask/,keys(%sheet_values)) {
708: push (@inside,$sheet_values{$_});
709: }
710: @inside=sort(@inside);
711: my $sum=0; my $i;
712: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
713: $sum+=$inside[$i];
714: }
715: return $sum;
716: }
717:
718: #-------------------------------------------------------
719:
720: =item SUMMIN(num,lower,upper)
721:
722: compute the sum of the smallest 'num' items in the range from
723: 'lower' to 'upper'
724:
725: =cut
726:
727: #-------------------------------------------------------
728: sub SUMMIN {
729: my ($num,$lower,$upper)=@_;
730: my $mask=mask($lower,$upper);
731: my @inside=();
732: foreach (grep /$mask/,keys(%sheet_values)) {
733: $inside[$#inside+1]=$sheet_values{$_};
734: }
735: @inside=sort(@inside);
736: my $sum=0; my $i;
737: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
738: $sum+=$inside[$i];
739: }
740: return $sum;
741: }
742:
743: #-------------------------------------------------------
744:
745: =item MINPARM(parametername)
746:
747: Returns the minimum value of the parameters matching the parametername.
748: parametername should be a string such as 'duedate'.
749:
750: =cut
751:
752: #-------------------------------------------------------
753: sub MINPARM {
754: my ($expression) = @_;
755: my $min = undef;
756: study($expression);
757: foreach $parameter (keys(%c)) {
758: next if ($parameter !~ /$expression/);
759: if ((! defined($min)) || ($min > $c{$parameter})) {
760: $min = $c{$parameter}
761: }
762: }
763: return $min;
764: }
765:
766: #-------------------------------------------------------
767:
768: =item MAXPARM(parametername)
769:
770: Returns the maximum value of the parameters matching the input parameter name.
771: parametername should be a string such as 'duedate'.
772:
773: =cut
774:
775: #-------------------------------------------------------
776: sub MAXPARM {
777: my ($expression) = @_;
778: my $max = undef;
779: study($expression);
780: foreach $parameter (keys(%c)) {
781: next if ($parameter !~ /$expression/);
782: if ((! defined($min)) || ($max < $c{$parameter})) {
783: $max = $c{$parameter}
784: }
785: }
786: return $max;
787: }
788:
789: #--------------------------------------------------------
790: sub expandnamed {
791: my $expression=shift;
792: if ($expression=~/^\&/) {
793: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
794: my @vars=split(/\W+/,$formula);
795: my %values=();
796: undef %values;
797: foreach ( @vars ) {
798: my $varname=$_;
799: if ($varname=~/\D/) {
800: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
801: $varname=~s/$var/\(\\w\+\)/g;
802: foreach (keys(%c)) {
803: if ($_=~/$varname/) {
804: $values{$1}=1;
805: }
806: }
807: }
808: }
809: if ($func eq 'EXPANDSUM') {
810: my $result='';
811: foreach (keys(%values)) {
812: my $thissum=$formula;
813: $thissum=~s/$var/$_/g;
814: $result.=$thissum.'+';
815: }
816: $result=~s/\+$//;
817: return $result;
818: } else {
819: return 0;
820: }
821: } else {
822: # it is not a function, so it is a parameter name
823: # We should do the following:
824: # 1. Take the list of parameter names
825: # 2. look through the list for ones that match the parameter we want
826: # 3. If there are no collisions, return the one that matches
827: # 4. If there is a collision, return 'bad parameter name error'
828: my $returnvalue = '';
829: my @matches = ();
830: $#matches = -1;
831: study $expression;
832: foreach $parameter (keys(%c)) {
833: push @matches,$parameter if ($parameter =~ /$expression/);
834: }
835: if (scalar(@matches) == 0) {
836: $returnvalue = 'unmatched parameter: '.$parameter;
837: } elsif (scalar(@matches) == 1) {
838: $returnvalue = '$c{\''.$matches[0].'\'}';
839: } elsif (scalar(@matches) > 0) {
840: # more than one match. Look for a concise one
841: $returnvalue = "'non-unique parameter name : $expression'";
842: foreach (@matches) {
843: if (/^$expression$/) {
844: $returnvalue = '$c{\''.$_.'\'}';
845: }
846: }
847: } else {
848: # There was a negative number of matches, which indicates
849: # something is wrong with reality. Better warn the user.
850: $returnvalue = 'bizzare parameter: '.$parameter;
851: }
852: return $returnvalue;
853: }
854: }
855:
856: sub sett {
857: %t=();
858: my $pattern='';
859: if ($sheettype eq 'assesscalc') {
860: $pattern='A';
861: } else {
862: $pattern='[A-Z]';
863: }
864: # Deal with the template row
865: foreach (keys(%f)) {
866: next if ($_!~/template\_(\w)/);
867: my $col=$1;
868: next if ($col=~/^$pattern/);
869: foreach (keys(%f)) {
870: next if ($_!~/A(\d+)/);
871: my $trow=$1;
872: next if (! $trow);
873: # Get the name of this cell
874: my $lb=$col.$trow;
875: # Grab the template declaration
876: $t{$lb}=$f{'template_'.$col};
877: # Replace '#' with the row number
878: $t{$lb}=~s/\#/$trow/g;
879: # Replace '....' with ','
880: $t{$lb}=~s/\.\.+/\,/g;
881: # Replace 'A0' with the value from 'A0'
882: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
883: # Replace parameters
884: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
885: }
886: }
887: # Deal with the normal cells
888: foreach (keys(%f)) {
889: if (exists($f{$_}) && ($_!~/template\_/)) {
890: my $matches=($_=~/^$pattern(\d+)/);
891: if (($matches) && ($1)) {
892: unless ($f{$_}=~/^\!/) {
893: $t{$_}=$c{$_};
894: }
895: } else {
896: $t{$_}=$f{$_};
897: $t{$_}=~s/\.\.+/\,/g;
898: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
899: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
900: }
901: }
902: }
903: # For inserted lines, [B-Z] is also valid
904: unless ($sheettype eq 'assesscalc') {
905: foreach (keys(%f)) {
906: if ($_=~/[B-Z](\d+)/) {
907: if ($f{'A'.$1}=~/^[\~\-]/) {
908: $t{$_}=$f{$_};
909: $t{$_}=~s/\.\.+/\,/g;
910: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
911: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
912: }
913: }
914: }
915: }
916: # For some reason 'A0' gets special treatment... This seems superfluous
917: # but I imagine it is here for a reason.
918: $t{'A0'}=$f{'A0'};
919: $t{'A0'}=~s/\.\.+/\,/g;
920: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
921: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
922: }
923:
924: sub calc {
925: undef %sheet_values;
926: &sett();
927: my $notfinished=1;
928: my $lastcalc='';
929: my $depth=0;
930: while ($notfinished) {
931: $notfinished=0;
932: foreach (keys(%t)) {
933: #$errorlog .= "$_:".$t{$_};
934: my $old=$sheet_values{$_};
935: $sheet_values{$_}=eval $t{$_};
936: if ($@) {
937: undef %sheet_values;
938: return $_.': '.$@;
939: }
940: if ($sheet_values{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
941: #$errorlog .= ":".$sheet_values{$_}."\n";
942: }
943: $depth++;
944: if ($depth>100) {
945: undef %sheet_values;
946: return $lastcalc.': Maximum calculation depth exceeded';
947: }
948: }
949: return '';
950: }
951:
952: # ------------------------------------------- End of "Inside of the safe space"
953: ENDDEFS
954: $safeeval->reval($code);
955: return $safeeval;
956: }
957:
958: #
959: #
960: #
961: sub templaterow {
962: my $sheet = shift;
963: my @cols=();
964: my $rowlabel = 'Template';
965: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
966: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
967: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
968: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
969: push(@cols,{ name => 'template_'.$_,
970: formula => $sheet->{'f'}->{'template_'.$_},
971: value => $sheet->{'f'}->{'template_'.$_} });
972: }
973: return ($rowlabel,@cols);
974: }
975:
976: sub outrowassess {
977: # $n is the current row number
978: my ($sheet,$n) = @_;
979: my @cols=();
980: my $rowlabel='';
981: if ($n) {
982: my ($usy,$ufn)=split(/__&&&\__/,$sheet->{'f'}->{'A'.$n});
983: if (exists($sheet->{'rowlabel'}->{$usy})) {
984: # This is dumb, but we need the information when we output
985: # the html version of the studentcalc spreadsheet for the
986: # links to the assesscalc sheets.
987: $rowlabel = $sheet->{'rowlabel'}->{$usy}.':'.
988: &Apache::lonnet::escape($ufn);
989: } else {
990: $rowlabel = '';
991: }
992: } else {
993: $rowlabel = 'Export';
994: }
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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
998: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
999: push(@cols,{ name => $_.$n,
1000: formula => $sheet->{'f'}->{$_.$n},
1001: value => $sheet->{'values'}->{$_.$n}});
1002: }
1003: return ($rowlabel,@cols);
1004: }
1005:
1006: sub outrow {
1007: my ($sheet,$n)=@_;
1008: my @cols=();
1009: my $rowlabel;
1010: if ($n) {
1011: $rowlabel = $sheet->{'rowlabel'}->{$sheet->{'f'}->{'A'.$n}};
1012: } else {
1013: if ($sheet->{'sheettype'} eq 'classcalc') {
1014: $rowlabel = 'Summary';
1015: } else {
1016: $rowlabel = 'Export';
1017: }
1018: }
1019: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1020: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1021: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1022: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1023: push(@cols,{ name => $_.$n,
1024: formula => $sheet->{'f'}->{$_.$n},
1025: value => $sheet->{'values'}->{$_.$n}});
1026: }
1027: return ($rowlabel,@cols);
1028: }
1029:
1030: # ------------------------------------------------ Add or change formula values
1031: sub setformulas {
1032: my ($sheet)=shift;
1033: %{$sheet->{'safe'}->varglob('f')}=%{$sheet->{'f'}};
1034: }
1035:
1036: # ------------------------------------------------ Add or change formula values
1037: sub setconstants {
1038: my ($sheet)=shift;
1039: my ($constants) = @_;
1040: if (! ref($constants)) {
1041: my %tmp = @_;
1042: $constants = \%tmp;
1043: }
1044: $sheet->{'constants'} = $constants;
1045: return %{$sheet->{'safe'}->varglob('c')}=%{$sheet->{'constants'}};
1046: }
1047:
1048: # --------------------------------------------- Set names of other spreadsheets
1049: sub setothersheets {
1050: my $sheet = shift;
1051: my @othersheets = @_;
1052: $sheet->{'othersheets'} = \@othersheets;
1053: @{$sheet->{'safe'}->varglob('os')}=@othersheets;
1054: return;
1055: }
1056:
1057: # ------------------------------------------------ Add or change formula values
1058: sub setrowlabels {
1059: my $sheet=shift;
1060: my ($rowlabel) = @_;
1061: if (! ref($rowlabel)) {
1062: my %tmp = @_;
1063: $rowlabel = \%tmp;
1064: }
1065: $sheet->{'rowlabel'}=$rowlabel;
1066: }
1067:
1068: # ------------------------------------------------------- Calculate spreadsheet
1069: sub calcsheet {
1070: my $sheet=shift;
1071: my $result = $sheet->{'safe'}->reval('&calc();');
1072: %{$sheet->{'values'}} = %{$sheet->{'safe'}->varglob('sheet_values')};
1073: return $result;
1074: }
1075:
1076: # ---------------------------------------------------------------- Get formulas
1077: # Return a copy of the formulas
1078: sub getformulas {
1079: my $sheet = shift;
1080: return %{$sheet->{'safe'}->varglob('f')};
1081: }
1082:
1083: sub geterrorlog {
1084: my $sheet = shift;
1085: return ${$sheet->{'safe'}->varglob('errorlog')};
1086: }
1087:
1088: sub gettitle {
1089: my $sheet = shift;
1090: if ($sheet->{'sheettype'} eq 'classcalc') {
1091: return $sheet->{'coursedesc'};
1092: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1093: return 'Grades for '.$sheet->{'uname'}.'@'.$sheet->{'udom'};
1094: } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
1095: if (($sheet->{'usymb'} eq '_feedback') ||
1096: ($sheet->{'usymb'} eq '_evaluation') ||
1097: ($sheet->{'usymb'} eq '_discussion') ||
1098: ($sheet->{'usymb'} eq '_tutoring')) {
1099: my $title = $sheet->{'usymb'};
1100: $title =~ s/^_//;
1101: $title = ucfirst($title);
1102: return $title;
1103: }
1104: return if (! defined($sheet->{'mapid'}) ||
1105: $sheet->{'mapid'} !~ /^\d+$/);
1106: my $mapid = $sheet->{'mapid'};
1107: return if (! defined($sheet->{'resid'}) ||
1108: $sheet->{'resid'} !~ /^\d+$/);
1109: my $resid = $sheet->{'resid'};
1110: my %course_db;
1111: tie(%course_db,'GDBM_File',$sheet->{'coursefilename'}.'.db',
1112: &GDBM_READER(),0640);
1113: return if (! tied(%course_db));
1114: my $key = 'title_'.$mapid.'.'.$resid;
1115: my $title = '';
1116: if (exists($course_db{$key})) {
1117: $title = $course_db{$key};
1118: } else {
1119: $title = $sheet->{'usymb'};
1120: }
1121: untie (%course_db);
1122: return $title;
1123: }
1124: }
1125:
1126: # ----------------------------------------------------- Get value of $f{'A'.$n}
1127: sub getfa {
1128: my $sheet = shift;
1129: my ($n)=@_;
1130: return $sheet->{'safe'}->reval('$f{"A'.$n.'"}');
1131: }
1132:
1133: # ------------------------------------------------------------- Export of A-row
1134: sub exportdata {
1135: my $sheet=shift;
1136: my @exportarray=();
1137: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1138: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1139: if (exists($sheet->{'values'}->{$_.'0'})) {
1140: push(@exportarray,$sheet->{'values'}->{$_.'0'});
1141: } else {
1142: push(@exportarray,'');
1143: }
1144: }
1145: return @exportarray;
1146: }
1147:
1148:
1149:
1150: sub update_student_sheet{
1151: my ($sheet,$r,$c) = @_;
1152: # Load in the studentcalc sheet
1153: &readsheet($sheet,'default_studentcalc');
1154: # Determine the structure (contained assessments, etc) of the sheet
1155: &updatesheet($sheet);
1156: # Load in the cached sheets for this student
1157: &cachedssheets($sheet);
1158: # Load in the (possibly cached) data from the assessment sheets
1159: &loadstudent($sheet,$r,$c);
1160: # Compute the sheet
1161: &calcsheet($sheet);
1162: }
1163:
1164: # ========================================================== End of Spreadsheet
1165: # =============================================================================
1166: #
1167: # Procedures for spreadsheet output
1168: #
1169: # --------------------------------------------- Produce output row n from sheet
1170:
1171: sub get_row {
1172: my ($sheet,$n) = @_;
1173: my ($rowlabel,@rowdata);
1174: if ($n eq '-') {
1175: ($rowlabel,@rowdata) = &templaterow($sheet);
1176: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1177: ($rowlabel,@rowdata) = &outrowassess($sheet,$n);
1178: } else {
1179: ($rowlabel,@rowdata) = &outrow($sheet,$n);
1180: }
1181: return ($rowlabel,@rowdata);
1182: }
1183:
1184: ########################################################################
1185: ########################################################################
1186: sub sort_indicies {
1187: my $sheet = shift;
1188: my @sortidx=();
1189: #
1190: if ($sheet->{'sheettype'} eq 'classcalc') {
1191: my @sortby=(undef);
1192: # Skip row 0
1193: for (my $row=1;$row<=$sheet->{'maxrow'};$row++) {
1194: my (undef,$sname,$sdom,$fullname,$section,$id) =
1195: split(':',$sheet->{'rowlabel'}->{$sheet->{'f'}->{'A'.$row}});
1196: push (@sortby, lc($fullname));
1197: push (@sortidx, $row);
1198: }
1199: @sortidx = sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1200: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1201: my @sortby1=(undef);
1202: my @sortby2=(undef);
1203: # Skip row 0
1204: for (my $row=1;$row<=$sheet->{'maxrow'};$row++) {
1205: my ($key,undef) = split(/__&&&\__/,$sheet->{'f'}->{'A'.$row});
1206: my $rowlabel = $sheet->{'rowlabel'}->{$key};
1207: my (undef,$symb,$mapid,$resid,$title,$ufn) =
1208: split(':',$rowlabel);
1209: $ufn = &Apache::lonnet::unescape($ufn);
1210: $symb = &Apache::lonnet::unescape($symb);
1211: $title = &Apache::lonnet::unescape($title);
1212: my ($sequence) = ($symb =~ /\/([^\/]*\.sequence)/);
1213: if ($sequence eq '') {
1214: $sequence = $symb;
1215: }
1216: push (@sortby1, $sequence);
1217: push (@sortby2, $title);
1218: push (@sortidx, $row);
1219: }
1220: @sortidx = sort { $sortby1[$a] cmp $sortby1[$b] ||
1221: $sortby2[$a] cmp $sortby2[$b] } @sortidx;
1222: } else {
1223: my @sortby=(undef);
1224: # Skip row 0
1225: for (my $row=1;$row<=$sheet->{'maxrow'};$row++) {
1226: push (@sortby, $sheet->{'safe'}->reval('$f{"A'.$row.'"}'));
1227: push (@sortidx, $row);
1228: }
1229: @sortidx = sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1230: }
1231: return @sortidx;
1232: }
1233:
1234: #############################################################
1235: ### ###
1236: ### Spreadsheet Output Routines ###
1237: ### ###
1238: #############################################################
1239:
1240: ############################################
1241: ## HTML output routines ##
1242: ############################################
1243: sub html_editable_cell {
1244: my ($cell,$bgcolor) = @_;
1245: my $result;
1246: my ($name,$formula,$value);
1247: if (defined($cell)) {
1248: $name = $cell->{'name'};
1249: $formula = $cell->{'formula'};
1250: $value = $cell->{'value'};
1251: }
1252: $name = '' if (! defined($name));
1253: $formula = '' if (! defined($formula));
1254: if (! defined($value)) {
1255: $value = '<font color="'.$bgcolor.'">#</font>';
1256: if ($formula ne '') {
1257: $value = '<i>undefined value</i>';
1258: }
1259: } elsif ($value =~ /^\s*$/ ) {
1260: $value = '<font color="'.$bgcolor.'">#</font>';
1261: } else {
1262: $value = &HTML::Entities::encode($value);
1263: }
1264: # Make the formula safe for outputting
1265: $formula =~ s/\'/\"/g;
1266: # The formula will be parsed by the browser *twice* before being
1267: # displayed to the user for editing.
1268: $formula = &HTML::Entities::encode(&HTML::Entities::encode($formula));
1269: # Escape newlines so they make it into the edit window
1270: $formula =~ s/\n/\\n/gs;
1271: # Glue everything together
1272: $result .= "<a href=\"javascript:celledit(\'".
1273: $name."','".$formula."');\">".$value."</a>";
1274: return $result;
1275: }
1276:
1277: sub html_uneditable_cell {
1278: my ($cell,$bgcolor) = @_;
1279: my $value = (defined($cell) ? $cell->{'value'} : '');
1280: $value = &HTML::Entities::encode($value);
1281: return ' '.$value.' ';
1282: }
1283:
1284: sub outsheet_html {
1285: my ($sheet,$r) = @_;
1286: my ($num_uneditable,$realm,$row_type);
1287: my $requester_is_student = ($ENV{'request.role'} =~ /^st\./);
1288: if ($sheet->{'sheettype'} eq 'assesscalc') {
1289: $num_uneditable = 1;
1290: $realm = 'Assessment';
1291: $row_type = 'Item';
1292: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1293: $num_uneditable = 26;
1294: $realm = 'User';
1295: $row_type = 'Assessment';
1296: } elsif ($sheet->{'sheettype'} eq 'classcalc') {
1297: $num_uneditable = 26;
1298: $realm = 'Course';
1299: $row_type = 'Student';
1300: } else {
1301: return; # error
1302: }
1303: ####################################
1304: # Print out header table
1305: ####################################
1306: my $num_left = 52-$num_uneditable;
1307: my $tabledata =<<"END";
1308: <table border="2">
1309: <tr>
1310: <th colspan="1" rowspan="2"><font size="+2">$realm</font></th>
1311: <td bgcolor="#FFDDDD" colspan="$num_uneditable">
1312: <b><font size="+1">Import</font></b></td>
1313: <td colspan="$num_left">
1314: <b><font size="+1">Calculations</font></b></td>
1315: </tr><tr>
1316: END
1317: my $label_num = 0;
1318: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
1319: if ($label_num<$num_uneditable) {
1320: $tabledata.='<td bgcolor="#FFDDDD">';
1321: } else {
1322: $tabledata.='<td>';
1323: }
1324: $tabledata.="<b><font size=+1>$_</font></b></td>";
1325: $label_num++;
1326: }
1327: $tabledata.="</tr>\n";
1328: $r->print($tabledata);
1329: ####################################
1330: # Print out template row
1331: ####################################
1332: my ($num_cols_output,$row_html,$rowlabel,@rowdata);
1333:
1334: if (! $requester_is_student) {
1335: ($rowlabel,@rowdata) = &get_row($sheet,'-');
1336: $row_html = '<tr><td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1337: $num_cols_output = 0;
1338: foreach my $cell (@rowdata) {
1339: if ($requester_is_student ||
1340: $num_cols_output++ < $num_uneditable) {
1341: $row_html .= '<td bgcolor="#FFDDDD">';
1342: $row_html .= &html_uneditable_cell($cell,'#FFDDDD');
1343: } else {
1344: $row_html .= '<td bgcolor="#EOFFDD">';
1345: $row_html .= &html_editable_cell($cell,'#E0FFDD');
1346: }
1347: $row_html .= '</td>';
1348: }
1349: $row_html.= "</tr>\n";
1350: $r->print($row_html);
1351: }
1352: ####################################
1353: # Print out summary/export row
1354: ####################################
1355: ($rowlabel,@rowdata) = &get_row($sheet,'0');
1356: $row_html = '<tr><td>'.&format_html_rowlabel($sheet,'Summary').'</td>';
1357: $num_cols_output = 0;
1358: foreach my $cell (@rowdata) {
1359: if ($num_cols_output++ < 26 && ! $requester_is_student) {
1360: $row_html .= '<td bgcolor="#CCCCFF">';
1361: $row_html .= &html_editable_cell($cell,'#CCCCFF');
1362: } else {
1363: $row_html .= '<td bgcolor="#DDCCFF">';
1364: $row_html .= &html_uneditable_cell($cell,'#CCCCFF');
1365: }
1366: $row_html .= '</td>';
1367: }
1368: $row_html.= "</tr>\n";
1369: $r->print($row_html);
1370: $r->print('</table>');
1371: ####################################
1372: # Prepare to output rows
1373: ####################################
1374: my @Rows = &sort_indicies($sheet);
1375: #
1376: # Loop through the rows and output them one at a time
1377: my $rows_output=0;
1378: foreach my $rownum (@Rows) {
1379: my ($rowlabel,@rowdata) = &get_row($sheet,$rownum);
1380: next if ($rowlabel =~ /^\s*$/);
1381: next if (($sheet->{'sheettype'} eq 'assesscalc') &&
1382: (! $ENV{'form.showall'}) &&
1383: ($rowdata[0]->{'value'} =~ /^\s*$/));
1384: if (! $ENV{'form.showall'} &&
1385: $sheet->{'sheettype'} =~ /^(studentcalc|classcalc)$/) {
1386: my $row_is_empty = 1;
1387: foreach my $cell (@rowdata) {
1388: if ($cell->{'value'} !~ /^\s*$/) {
1389: $row_is_empty = 0;
1390: last;
1391: }
1392: }
1393: next if ($row_is_empty);
1394: }
1395: #
1396: my $defaultbg='#E0FF';
1397: #
1398: my $row_html ="\n".'<tr><td><b><font size=+1>'.$rownum.
1399: '</font></b></td>';
1400: #
1401: if ($sheet->{'sheettype'} eq 'classcalc') {
1402: $row_html.='<td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1403: # Output links for each student?
1404: # Nope, that is already done for us in format_html_rowlabel
1405: # (for now)
1406: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1407: my $ufn = (split(/:/,$rowlabel))[5];
1408: $row_html.='<td>'.&format_html_rowlabel($sheet,$rowlabel);
1409: $row_html.= '<br>'.
1410: '<select name="sel_'.$rownum.'" '.
1411: 'onChange="changesheet('.$rownum.')">'.
1412: '<option name="default">Default</option>';
1413:
1414: foreach (@{$sheet->{'othersheets'}}) {
1415: $row_html.='<option name="'.$_.'"';
1416: if ($ufn eq $_) {
1417: $row_html.=' selected';
1418: }
1419: $row_html.='>'.$_.'</option>';
1420: }
1421: $row_html.='</select></td>';
1422: } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
1423: $row_html.='<td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1424: }
1425: #
1426: my $shown_cells = 0;
1427: foreach my $cell (@rowdata) {
1428: my $value = $cell->{'value'};
1429: my $formula = $cell->{'formula'};
1430: my $cellname = $cell->{'name'};
1431: #
1432: my $bgcolor;
1433: if ($shown_cells && ($shown_cells/5 == int($shown_cells/5))) {
1434: $bgcolor = $defaultbg.'99';
1435: } else {
1436: $bgcolor = $defaultbg.'DD';
1437: }
1438: $bgcolor='#FFDDDD' if ($shown_cells < $num_uneditable);
1439: #
1440: $row_html.='<td bgcolor='.$bgcolor.'>';
1441: if ($requester_is_student || $shown_cells < $num_uneditable) {
1442: $row_html .= &html_uneditable_cell($cell,$bgcolor);
1443: } else {
1444: $row_html .= &html_editable_cell($cell,$bgcolor);
1445: }
1446: $row_html.='</td>';
1447: $shown_cells++;
1448: }
1449: if ($row_html) {
1450: if ($rows_output % 25 == 0) {
1451: $r->print("</table>\n<br>\n");
1452: $r->rflush();
1453: $r->print('<table border=2>'.
1454: '<tr><td> <td>'.$row_type.'</td>'.
1455: '<td>'.
1456: join('</td><td>',
1457: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1458: 'abcdefghijklmnopqrstuvwxyz'))).
1459: "</td></tr>\n");
1460: }
1461: $rows_output++;
1462: $r->print($row_html);
1463: }
1464: }
1465: #
1466: $r->print('</table>');
1467: #
1468: # Debugging code (be sure to uncomment errorlog code in safe space):
1469: #
1470: # $r->print("\n<pre>");
1471: # $r->print(&geterrorlog($sheet));
1472: # $r->print("\n</pre>");
1473: return 1;
1474: }
1475:
1476: ############################################
1477: ## csv output routines ##
1478: ############################################
1479: sub outsheet_csv {
1480: my ($sheet,$r) = @_;
1481: my $csvdata = '';
1482: my @Values;
1483: ####################################
1484: # Prepare to output rows
1485: ####################################
1486: my @Rows = &sort_indicies($sheet);
1487: #
1488: # Loop through the rows and output them one at a time
1489: my $rows_output=0;
1490: foreach my $rownum (@Rows) {
1491: my ($rowlabel,@rowdata) = &get_row($sheet,$rownum);
1492: next if ($rowlabel =~ /^\s*$/);
1493: push (@Values,&format_csv_rowlabel($sheet,$rowlabel));
1494: foreach my $cell (@rowdata) {
1495: push (@Values,'"'.$cell->{'value'}.'"');
1496: }
1497: $csvdata.= join(',',@Values)."\n";
1498: @Values = ();
1499: }
1500: #
1501: # Write the CSV data to a file and serve up a link
1502: #
1503: my $filename = '/prtspool/'.
1504: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1505: time.'_'.rand(1000000000).'.csv';
1506: my $file;
1507: unless ($file = Apache::File->new('>'.'/home/httpd'.$filename)) {
1508: $r->log_error("Couldn't open $filename for output $!");
1509: $r->print("Problems occured in writing the csv file. ".
1510: "This error has been logged. ".
1511: "Please alert your LON-CAPA administrator.");
1512: $r->print("<pre>\n".$csvdata."</pre>\n");
1513: return 0;
1514: }
1515: print $file $csvdata;
1516: close($file);
1517: $r->print('<br /><br />'.
1518: '<a href="'.$filename.'">Your CSV spreadsheet.</a>'."\n");
1519: #
1520: return 1;
1521: }
1522:
1523: ############################################
1524: ## Excel output routines ##
1525: ############################################
1526: sub outsheet_recursive_excel {
1527: my ($sheet,$r) = @_;
1528: my $c = $r->connection;
1529: return undef if ($sheet->{'sheettype'} ne 'classcalc');
1530: my ($workbook,$filename) = &create_excel_spreadsheet($sheet,$r);
1531: return undef if (! defined($workbook));
1532: #
1533: # Create main worksheet
1534: my $main_worksheet = $workbook->addworksheet('main');
1535: #
1536: # Figure out who the students are
1537: my %f=&getformulas($sheet);
1538: my $count = 0;
1539: $r->print(<<END);
1540: <p>
1541: Compiling Excel Workbook with a worksheet for each student.
1542: </p><p>
1543: This operation may take longer than a complete recalculation of the
1544: spreadsheet.
1545: </p><p>
1546: To abort this operation, hit the stop button on your browser.
1547: </p><p>
1548: A link to the spreadsheet will be available at the end of this process.
1549: </p>
1550: <p>
1551: END
1552: $r->rflush();
1553: my $starttime = time;
1554: foreach my $rownum (&sort_indicies($sheet)) {
1555: $count++;
1556: my ($sname,$sdom) = split(':',$f{'A'.$rownum});
1557: my $student_excel_worksheet=$workbook->addworksheet($sname.'@'.$sdom);
1558: # Create a new spreadsheet
1559: my $studentsheet = &makenewsheet($sname,$sdom,'studentcalc',undef);
1560: # Read in the spreadsheet definition
1561: &update_student_sheet($studentsheet,$r,$c);
1562: # Stuff the sheet into excel
1563: &export_sheet_as_excel($studentsheet,$student_excel_worksheet);
1564: my $totaltime = int((time - $starttime) / $count * $sheet->{'maxrow'});
1565: my $timeleft = int((time - $starttime) / $count * ($sheet->{'maxrow'} - $count));
1566: if ($count % 5 == 0) {
1567: $r->print($count.' students completed.'.
1568: ' Time remaining: '.$timeleft.' sec. '.
1569: ' Estimated total time: '.$totaltime." sec <br />\n");
1570: $r->rflush();
1571: }
1572: if(defined($c) && ($c->aborted())) {
1573: last;
1574: }
1575: }
1576: #
1577: if(! $c->aborted() ) {
1578: $r->print('All students spreadsheets completed!<br />');
1579: $r->rflush();
1580: #
1581: # &export_sheet_as_excel fills $worksheet with the data from $sheet
1582: &export_sheet_as_excel($sheet,$main_worksheet);
1583: #
1584: $workbook->close();
1585: # Okay, the spreadsheet is taken care of, so give the user a link.
1586: $r->print('<br /><br />'.
1587: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1588: } else {
1589: $workbook->close(); # Not sure how necessary this is.
1590: #unlink('/home/httpd'.$filename); # No need to keep this around?
1591: }
1592: return 1;
1593: }
1594:
1595: sub outsheet_excel {
1596: my ($sheet,$r) = @_;
1597: my ($workbook,$filename) = &create_excel_spreadsheet($sheet,$r);
1598: return undef if (! defined($workbook));
1599: my $sheetname;
1600: if ($sheet->{'sheettype'} eq 'classcalc') {
1601: $sheetname = 'Main';
1602: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1603: $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'};
1604: } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
1605: $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'}.' assessment';
1606: }
1607: my $worksheet = $workbook->addworksheet($sheetname);
1608: #
1609: # &export_sheet_as_excel fills $worksheet with the data from $sheet
1610: &export_sheet_as_excel($sheet,$worksheet);
1611: #
1612: $workbook->close();
1613: # Okay, the spreadsheet is taken care of, so give the user a link.
1614: $r->print('<br /><br />'.
1615: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1616: return 1;
1617: }
1618:
1619: sub create_excel_spreadsheet {
1620: my ($sheet,$r) = @_;
1621: my $filename = '/prtspool/'.
1622: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1623: time.'_'.rand(1000000000).'.xls';
1624: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1625: if (! defined($workbook)) {
1626: $r->log_error("Error creating excel spreadsheet $filename: $!");
1627: $r->print("Problems creating new Excel file. ".
1628: "This error has been logged. ".
1629: "Please alert your LON-CAPA administrator");
1630: return undef;
1631: }
1632: #
1633: # The spreadsheet stores temporary data in files, then put them
1634: # together. If needed we should be able to disable this (memory only).
1635: # The temporary directory must be specified before calling 'addworksheet'.
1636: # File::Temp is used to determine the temporary directory.
1637: $workbook->set_tempdir('/home/httpd/perl/tmp');
1638: #
1639: # Determine the name to give the worksheet
1640: return ($workbook,$filename);
1641: }
1642:
1643: sub export_sheet_as_excel {
1644: my $sheet = shift;
1645: my $worksheet = shift;
1646: #
1647: my $rows_output = 0;
1648: my $cols_output = 0;
1649: ####################################
1650: # Write an identifying row #
1651: ####################################
1652: my @Headerinfo = ($sheet->{'coursedesc'});
1653: my $title = &gettitle($sheet);
1654: $cols_output = 0;
1655: if (defined($title)) {
1656: $worksheet->write($rows_output++,$cols_output++,$title);
1657: }
1658: ####################################
1659: # Write the summary/export row #
1660: ####################################
1661: my ($rowlabel,@rowdata) = &get_row($sheet,'0');
1662: my $label = &format_excel_rowlabel($sheet,$rowlabel);
1663: $cols_output = 0;
1664: $worksheet->write($rows_output,$cols_output++,$label);
1665: foreach my $cell (@rowdata) {
1666: $worksheet->write($rows_output,$cols_output++,$cell->{'value'});
1667: }
1668: $rows_output+= 2; # Skip a row, just for fun
1669: ####################################
1670: # Prepare to output rows
1671: ####################################
1672: my @Rows = &sort_indicies($sheet);
1673: #
1674: # Loop through the rows and output them one at a time
1675: foreach my $rownum (@Rows) {
1676: my ($rowlabel,@rowdata) = &get_row($sheet,$rownum);
1677: next if ($rowlabel =~ /^[\s]*$/);
1678: $cols_output = 0;
1679: my $label = &format_excel_rowlabel($sheet,$rowlabel);
1680: if ( ! $ENV{'form.showall'} &&
1681: $sheet->{'sheettype'} =~ /^(studentcalc|classcalc)$/) {
1682: my $row_is_empty = 1;
1683: foreach my $cell (@rowdata) {
1684: if ($cell->{'value'} !~ /^\s*$/) {
1685: $row_is_empty = 0;
1686: last;
1687: }
1688: }
1689: next if ($row_is_empty);
1690: }
1691: $worksheet->write($rows_output,$cols_output++,$label);
1692: if (ref($label)) {
1693: $cols_output = (scalar(@$label));
1694: }
1695: foreach my $cell (@rowdata) {
1696: $worksheet->write($rows_output,$cols_output++,$cell->{'value'});
1697: }
1698: $rows_output++;
1699: }
1700: return;
1701: }
1702:
1703: ############################################
1704: ## XML output routines ##
1705: ############################################
1706: sub outsheet_xml {
1707: my ($sheet,$r) = @_;
1708: ## Someday XML
1709: ## Will be rendered for the user
1710: ## But not on this day
1711: }
1712:
1713: ##
1714: ## Outsheet - calls other outsheet_* functions
1715: ##
1716: sub outsheet {
1717: my ($sheet,$r)=@_;
1718: if (! exists($ENV{'form.output'})) {
1719: $ENV{'form.output'} = 'HTML';
1720: }
1721: if (lc($ENV{'form.output'}) eq 'csv') {
1722: &outsheet_csv($sheet,$r);
1723: } elsif (lc($ENV{'form.output'}) eq 'excel') {
1724: &outsheet_excel($sheet,$r);
1725: } elsif (lc($ENV{'form.output'}) eq 'recursive excel') {
1726: &outsheet_recursive_excel($sheet,$r);
1727: # } elsif (lc($ENV{'form.output'}) eq 'xml' ) {
1728: # &outsheet_xml($sheet,$r);
1729: } else {
1730: &outsheet_html($sheet,$r);
1731: }
1732: }
1733:
1734: ########################################################################
1735: ########################################################################
1736: sub othersheets {
1737: my ($sheet,$stype)=@_;
1738: $stype = $sheet->{'sheettype'} if (! defined($stype));
1739: #
1740: my $cnum = $sheet->{'cnum'};
1741: my $cdom = $sheet->{'cdom'};
1742: my $chome = $sheet->{'chome'};
1743: #
1744: my @alternatives=();
1745: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1746: my ($tmp) = keys(%results);
1747: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1748: @alternatives = sort (keys(%results));
1749: }
1750: return @alternatives;
1751: }
1752:
1753: #
1754: # -------------------------------------- Parse a spreadsheet
1755: #
1756: sub parse_sheet {
1757: # $sheetxml is a scalar reference or a scalar
1758: my ($sheetxml) = @_;
1759: if (! ref($sheetxml)) {
1760: my $tmp = $sheetxml;
1761: $sheetxml = \$tmp;
1762: }
1763: my %f;
1764: my $parser=HTML::TokeParser->new($sheetxml);
1765: my $token;
1766: while ($token=$parser->get_token) {
1767: if ($token->[0] eq 'S') {
1768: if ($token->[1] eq 'field') {
1769: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1770: $parser->get_text('/field');
1771: }
1772: if ($token->[1] eq 'template') {
1773: $f{'template_'.$token->[2]->{'col'}}=
1774: $parser->get_text('/template');
1775: }
1776: }
1777: }
1778: return \%f;
1779: }
1780:
1781: #
1782: # -------------------------------------- Read spreadsheet formulas for a course
1783: #
1784: sub readsheet {
1785: my ($sheet,$fn)=@_;
1786: #
1787: my $stype = $sheet->{'sheettype'};
1788: my $cnum = $sheet->{'cnum'};
1789: my $cdom = $sheet->{'cdom'};
1790: my $chome = $sheet->{'chome'};
1791: #
1792: if (! defined($fn)) {
1793: # There is no filename. Look for defaults in course and global, cache
1794: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1795: my %tmphash = &Apache::lonnet::get('environment',
1796: ['spreadsheet_default_'.$stype],
1797: $cdom,$cnum);
1798: my ($tmp) = keys(%tmphash);
1799: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1800: $fn = 'default_'.$stype;
1801: } else {
1802: $fn = $tmphash{'spreadsheet_default_'.$stype};
1803: }
1804: unless (($fn) && ($fn!~/^error\:/)) {
1805: $fn='default_'.$stype;
1806: }
1807: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1808: }
1809: }
1810: # $fn now has a value
1811: $sheet->{'filename'} = $fn;
1812: # see if sheet is cached
1813: my $fstring='';
1814: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1815: my %tmp = split(/___;___/,$fstring);
1816: $sheet->{'f'} = \%tmp;
1817: &setformulas($sheet);
1818: } else {
1819: # Not cached, need to read
1820: my %f=();
1821: if ($fn=~/^default\_/) {
1822: my $sheetxml='';
1823: my $fh;
1824: my $dfn=$fn;
1825: $dfn=~s/\_/\./g;
1826: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1827: $sheetxml=join('',<$fh>);
1828: } else {
1829: # $sheetxml='<field row="0" col="A">"Error"</field>';
1830: $sheetxml='<field row="0" col="A"></field>';
1831: }
1832: %f=%{&parse_sheet(\$sheetxml)};
1833: } elsif($fn=~/\/*\.spreadsheet$/) {
1834: my $sheetxml=&Apache::lonnet::getfile
1835: (&Apache::lonnet::filelocation('',$fn));
1836: if ($sheetxml == -1) {
1837: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1838: .$fn.'"</field>';
1839: }
1840: %f=%{&parse_sheet(\$sheetxml)};
1841: } else {
1842: my $sheet='';
1843: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1844: my ($tmp) = keys(%tmphash);
1845: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1846: foreach (keys(%tmphash)) {
1847: $f{$_}=$tmphash{$_};
1848: }
1849: }
1850: }
1851: # Cache and set
1852: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1853: $sheet->{'f'}=\%f;
1854: &setformulas($sheet);
1855: }
1856: }
1857:
1858: # -------------------------------------------------------- Make new spreadsheet
1859: sub makenewsheet {
1860: my ($uname,$udom,$stype,$usymb)=@_;
1861: my $sheet={};
1862: $sheet->{'uname'} = $uname;
1863: $sheet->{'udom'} = $udom;
1864: $sheet->{'sheettype'} = $stype;
1865: $sheet->{'usymb'} = $usymb;
1866: $sheet->{'mapid'} = $ENV{'form.mapid'};
1867: $sheet->{'resid'} = $ENV{'form.resid'};
1868: $sheet->{'cid'} = $ENV{'request.course.id'};
1869: $sheet->{'csec'} = $Section{$uname.':'.$udom};
1870: $sheet->{'coursefilename'} = $ENV{'request.course.fn'};
1871: $sheet->{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1872: $sheet->{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1873: $sheet->{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1874: $sheet->{'coursedesc'} = $ENV{'course.'.$ENV{'request.course.id'}.
1875: '.description'};
1876: $sheet->{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1877: #
1878: #
1879: $sheet->{'f'} = {};
1880: $sheet->{'constants'} = {};
1881: $sheet->{'othersheets'} = [];
1882: $sheet->{'rowlabel'} = {};
1883: #
1884: #
1885: $sheet->{'safe'}=&initsheet($sheet->{'sheettype'});
1886: #
1887: # Place all the %$sheet items into the safe space except the safe space
1888: # itself
1889: my $initstring = '';
1890: foreach (qw/uname udom sheettype usymb cid csec coursefilename
1891: cnum cdom chome uhome/) {
1892: $initstring.= qq{\$$_="$sheet->{$_}";};
1893: }
1894: $sheet->{'safe'}->reval($initstring);
1895: return $sheet;
1896: }
1897:
1898: # ------------------------------------------------------------ Save spreadsheet
1899: sub writesheet {
1900: my ($sheet,$makedef)=@_;
1901: my $cid=$sheet->{'cid'};
1902: if (&Apache::lonnet::allowed('opa',$cid)) {
1903: my %f=&getformulas($sheet);
1904: my $stype= $sheet->{'sheettype'};
1905: my $cnum = $sheet->{'cnum'};
1906: my $cdom = $sheet->{'cdom'};
1907: my $chome= $sheet->{'chome'};
1908: my $fn = $sheet->{'filename'};
1909: # Cache new sheet
1910: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1911: # Write sheet
1912: foreach (keys(%f)) {
1913: delete($f{$_}) if ($f{$_} eq 'import');
1914: }
1915: my $reply = &Apache::lonnet::put($fn,\%f,$cdom,$cnum);
1916: if ($reply eq 'ok') {
1917: $reply = &Apache::lonnet::put($stype.'_spreadsheets',
1918: {$fn => $ENV{'user.name'}.'@'.$ENV{'user.domain'}},
1919: $cdom,$cnum);
1920: if ($reply eq 'ok') {
1921: if ($makedef) {
1922: $reply = &Apache::lonnet::put('environment',
1923: {'spreadsheet_default_'.$stype => $fn },
1924: $cdom,$cnum);
1925: if ($reply eq 'ok' &&
1926: ($sheet->{'sheettype'} eq 'studentcalc' ||
1927: $sheet->{'sheettype'} eq 'assesscalc')) {
1928: # Expire the spreadsheets of the other students.
1929: &Apache::lonnet::expirespread('','','studentcalc','');
1930: }
1931: return $reply;
1932: }
1933: return $reply;
1934: }
1935: return $reply;
1936: }
1937: return $reply;
1938: }
1939: return 'unauthorized';
1940: }
1941:
1942: # ----------------------------------------------- Make a temp copy of the sheet
1943: # "Modified workcopy" - interactive only
1944: #
1945: sub tmpwrite {
1946: my ($sheet) = @_;
1947: my $fn=$ENV{'user.name'}.'_'.
1948: $ENV{'user.domain'}.'_spreadsheet_'.$sheet->{'usymb'}.'_'.
1949: $sheet->{'filename'};
1950: $fn=~s/\W/\_/g;
1951: $fn=$tmpdir.$fn.'.tmp';
1952: my $fh;
1953: if ($fh=Apache::File->new('>'.$fn)) {
1954: my %f = &getformulas($sheet);
1955: while( my ($cell,$formula) = each(%f)) {
1956: print $fh &Apache::lonnet::escape($cell)."=".&Apache::lonnet::escape($formula)."\n";
1957: }
1958: }
1959: }
1960:
1961: # ---------------------------------------------------------- Read the temp copy
1962: sub tmpread {
1963: my ($sheet,$nfield,$nform)=@_;
1964: my $fn=$ENV{'user.name'}.'_'.
1965: $ENV{'user.domain'}.'_spreadsheet_'.$sheet->{'usymb'}.'_'.
1966: $sheet->{'filename'};
1967: $fn=~s/\W/\_/g;
1968: $fn=$tmpdir.$fn.'.tmp';
1969: my $fh;
1970: my %fo=();
1971: my $countrows=0;
1972: if ($fh=Apache::File->new($fn)) {
1973: while (<$fh>) {
1974: chomp;
1975: my ($cell,$formula) = split(/=/);
1976: $cell = &Apache::lonnet::unescape($cell);
1977: $formula = &Apache::lonnet::unescape($formula);
1978: $fo{$cell} = $formula;
1979: }
1980: }
1981: # chomp($value);
1982: # $fo{$name}=$value;
1983: # if ($name=~/^A(\d+)$/) {
1984: # if ($1>$countrows) {
1985: # $countrows=$1;
1986: # }
1987: # }
1988: # }
1989: # }
1990: if ($nform eq 'changesheet') {
1991: $fo{'A'.$nfield}=(split(/__&&&\__/,$fo{'A'.$nfield}))[0];
1992: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1993: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1994: }
1995: # } elsif ($nfield eq 'insertrow') {
1996: # $countrows++;
1997: # my $newrow=substr('000000'.$countrows,-7);
1998: # if ($nform eq 'top') {
1999: # $fo{'A'.$countrows}='--- '.$newrow;
2000: # } else {
2001: # $fo{'A'.$countrows}='~~~ '.$newrow;
2002: # }
2003: } else {
2004: if ($nfield) { $fo{$nfield}=$nform; }
2005: }
2006: $sheet->{'f'}=\%fo;
2007: &setformulas($sheet);
2008: }
2009:
2010: ##################################################
2011: ##################################################
2012:
2013: =pod
2014:
2015: =item &parmval()
2016:
2017: Determine the value of a parameter.
2018:
2019: Inputs: $what, the parameter needed, $sheet, the safe space
2020:
2021: Returns: The value of a parameter, or '' if none.
2022:
2023: This function cascades through the possible levels searching for a value for
2024: a parameter. The levels are checked in the following order:
2025: user, course (at section level and course level), map, and lonnet::metadata.
2026: This function uses %parmhash, which must be tied prior to calling it.
2027: This function also requires %courseopt and %useropt to be initialized for
2028: this user and course.
2029:
2030: =cut
2031:
2032: ##################################################
2033: ##################################################
2034: sub parmval {
2035: my ($what,$sheet)=@_;
2036: my $symb = $sheet->{'usymb'};
2037: unless ($symb) { return ''; }
2038: #
2039: my $cid = $sheet->{'cid'};
2040: my $csec = $sheet->{'csec'};
2041: my $uname = $sheet->{'uname'};
2042: my $udom = $sheet->{'udom'};
2043: my $result='';
2044: #
2045: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
2046: # Cascading lookup scheme
2047: my $rwhat=$what;
2048: $what =~ s/^parameter\_//;
2049: $what =~ s/\_([^\_]+)$/\.$1/;
2050: #
2051: my $symbparm = $symb.'.'.$what;
2052: my $mapparm = $mapname.'___(all).'.$what;
2053: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
2054: #
2055: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
2056: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
2057: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
2058: #
2059: my $courselevel = $usercourseprefix.'.'.$what;
2060: my $courselevelr = $usercourseprefix.'.'.$symbparm;
2061: my $courselevelm = $usercourseprefix.'.'.$mapparm;
2062: # fourth, check user
2063: if (defined($uname)) {
2064: return $useropt{$courselevelr} if (defined($useropt{$courselevelr}));
2065: return $useropt{$courselevelm} if (defined($useropt{$courselevelm}));
2066: return $useropt{$courselevel} if (defined($useropt{$courselevel}));
2067: }
2068: # third, check course
2069: if (defined($csec)) {
2070: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
2071: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
2072: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
2073: }
2074: #
2075: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
2076: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
2077: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
2078: # second, check map parms
2079: my $thisparm = $parmhash{$symbparm};
2080: return $thisparm if (defined($thisparm));
2081: # first, check default
2082: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
2083: }
2084:
2085:
2086: ##################################################################
2087: ## Row label formatting routines ##
2088: ##################################################################
2089: sub format_html_rowlabel {
2090: my $sheet = shift;
2091: my $rowlabel = shift;
2092: return '' if ($rowlabel eq '');
2093: my ($type,$labeldata) = split(':',$rowlabel,2);
2094: my $result = '';
2095: if ($type eq 'symb') {
2096: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
2097: $ufn = 'default' if (!defined($ufn) || $ufn eq '');
2098: $ufn = &Apache::lonnet::unescape($ufn);
2099: $symb = &Apache::lonnet::unescape($symb);
2100: $title = &Apache::lonnet::unescape($title);
2101: $result = '<a href="/adm/assesscalc?usymb='.$symb.
2102: '&uname='.$sheet->{'uname'}.'&udom='.$sheet->{'udom'}.
2103: '&ufn='.$ufn.
2104: '&mapid='.$mapid.'&resid='.$resid.'">'.$title.'</a>';
2105: } elsif ($type eq 'student') {
2106: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
2107: if ($fullname =~ /^\s*$/) {
2108: $fullname = $sname.'@'.$sdom;
2109: }
2110: $result ='<a href="/adm/studentcalc?uname='.$sname.
2111: '&udom='.$sdom.'">';
2112: $result.=$section.' '.$id." ".$fullname.'</a>';
2113: } elsif ($type eq 'parameter') {
2114: $result = $labeldata;
2115: } else {
2116: $result = '<b><font size=+1>'.$rowlabel.'</font></b>';
2117: }
2118: return $result;
2119: }
2120:
2121: sub format_csv_rowlabel {
2122: my $sheet = shift;
2123: my $rowlabel = shift;
2124: return '' if ($rowlabel eq '');
2125: my ($type,$labeldata) = split(':',$rowlabel,2);
2126: my $result = '';
2127: if ($type eq 'symb') {
2128: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
2129: $ufn = &Apache::lonnet::unescape($ufn);
2130: $symb = &Apache::lonnet::unescape($symb);
2131: $title = &Apache::lonnet::unescape($title);
2132: $result = $title;
2133: } elsif ($type eq 'student') {
2134: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
2135: $result = join('","',($sname,$sdom,$fullname,$section,$id));
2136: } elsif ($type eq 'parameter') {
2137: $labeldata =~ s/<br>/ /g;
2138: $result = $labeldata;
2139: } else {
2140: $result = $rowlabel;
2141: }
2142: return '"'.$result.'"';
2143: }
2144:
2145: sub format_excel_rowlabel {
2146: my $sheet = shift;
2147: my $rowlabel = shift;
2148: return '' if ($rowlabel eq '');
2149: my ($type,$labeldata) = split(':',$rowlabel,2);
2150: my $result = '';
2151: if ($type eq 'symb') {
2152: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
2153: $ufn = &Apache::lonnet::unescape($ufn);
2154: $symb = &Apache::lonnet::unescape($symb);
2155: $title = &Apache::lonnet::unescape($title);
2156: $result = $title;
2157: } elsif ($type eq 'student') {
2158: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
2159: $section = '' if (! defined($section));
2160: $id = '' if (! defined($id));
2161: my @Data = ($sname,$sdom,$fullname,$section,$id);
2162: $result = \@Data;
2163: } elsif ($type eq 'parameter') {
2164: $labeldata =~ s/<br>/ /g;
2165: $result = $labeldata;
2166: } else {
2167: $result = $rowlabel;
2168: }
2169: return $result;
2170: }
2171:
2172: # ---------------------------------------------- Update rows for course listing
2173: sub updateclasssheet {
2174: my ($sheet) = @_;
2175: my $cnum =$sheet->{'cnum'};
2176: my $cdom =$sheet->{'cdom'};
2177: my $cid =$sheet->{'cid'};
2178: my $chome =$sheet->{'chome'};
2179: #
2180: %Section = ();
2181: #
2182: # Read class list and row labels
2183: my $classlist = &Apache::loncoursedata::get_classlist();
2184: if (! defined($classlist)) {
2185: return 'Could not access course classlist';
2186: }
2187: #
2188: my %currentlist=();
2189: foreach my $student (keys(%$classlist)) {
2190: my ($studentDomain,$studentName,$end,$start,$id,$studentSection,
2191: $fullname,$status) = @{$classlist->{$student}};
2192: $Section{$studentName.':'.$studentDomain} = $studentSection;
2193: if ($ENV{'form.Status'} eq $status || $ENV{'form.Status'} eq 'Any') {
2194: $currentlist{$student}=join(':',('student',$studentName,
2195: $studentDomain,$fullname,
2196: $studentSection,$id));
2197: }
2198: }
2199: #
2200: # Find discrepancies between the course row table and this
2201: #
2202: my %f=&getformulas($sheet);
2203: my $changed=0;
2204: #
2205: $sheet->{'maxrow'}=0;
2206: my %existing=();
2207: #
2208: # Now obsolete rows
2209: foreach (keys(%f)) {
2210: if ($_=~/^A(\d+)/) {
2211: if ($1 > $sheet->{'maxrow'}) {
2212: $sheet->{'maxrow'}= $1;
2213: }
2214: $existing{$f{$_}}=1;
2215: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
2216: ($f{$_}=~/^(~~~|---)/)) {
2217: $f{$_}='!!! Obsolete';
2218: $changed=1;
2219: }
2220: }
2221: }
2222: #
2223: # New and unknown keys
2224: foreach my $student (sort keys(%currentlist)) {
2225: unless ($existing{$student}) {
2226: $changed=1;
2227: $sheet->{'maxrow'}++;
2228: $f{'A'.$sheet->{'maxrow'}}=$student;
2229: }
2230: }
2231: if ($changed) {
2232: $sheet->{'f'} = \%f;
2233: &setformulas($sheet,%f);
2234: }
2235: #
2236: &setrowlabels($sheet,\%currentlist);
2237: }
2238:
2239: # ----------------------------------- Update rows for student and assess sheets
2240: sub get_student_rowlabels {
2241: my ($sheet) = @_;
2242: #
2243: my %course_db;
2244: #
2245: my $stype = $sheet->{'sheettype'};
2246: my $uname = $sheet->{'uname'};
2247: my $udom = $sheet->{'udom'};
2248: #
2249: $sheet->{'rowlabel'} = {};
2250: #
2251: my $identifier =$sheet->{'coursefilename'}.'_'.$stype;
2252: if ($rowlabel_cache{$identifier}) {
2253: %{$sheet->{'rowlabel'}}=split(/___;___/,$rowlabel_cache{$identifier});
2254: } else {
2255: # Get the data and store it in the cache
2256: # Tie hash
2257: tie(%course_db,'GDBM_File',$sheet->{'coursefilename'}.'.db',
2258: &GDBM_READER(),0640);
2259: if (! tied(%course_db)) {
2260: return 'Could not access course data';
2261: }
2262: #
2263: my %assesslist = ();
2264: foreach ('Feedback','Evaluation','Tutoring','Discussion') {
2265: my $symb = '_'.lc($_);
2266: $assesslist{$symb} = join(':',('symb',$symb,0,0,
2267: &Apache::lonnet::escape($_)));
2268: }
2269: #
2270: while (my ($key,$srcf) = each(%course_db)) {
2271: next if ($key !~ /^src_(\d+)\.(\d+)$/);
2272: my $mapid = $1;
2273: my $resid = $2;
2274: my $id = $mapid.'.'.$resid;
2275: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
2276: my $symb=
2277: &Apache::lonnet::declutter($course_db{'map_id_'.$mapid}).
2278: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
2279: $assesslist{$symb} ='symb:'.&Apache::lonnet::escape($symb).':'
2280: .$mapid.':'.$resid.':'.
2281: &Apache::lonnet::escape($course_db{'title_'.$id});
2282: }
2283: }
2284: untie(%course_db);
2285: # Store away the data
2286: $sheet->{'rowlabel'} = \%assesslist;
2287: $rowlabel_cache{$identifier}=join('___;___',%{$sheet->{'rowlabel'}});
2288: }
2289:
2290: }
2291:
2292: sub get_assess_rowlabels {
2293: my ($sheet) = @_;
2294: #
2295: my %course_db;
2296: #
2297: my $stype = $sheet->{'sheettype'};
2298: my $uname = $sheet->{'uname'};
2299: my $udom = $sheet->{'udom'};
2300: my $usymb = $sheet->{'usymb'};
2301: #
2302: $sheet->{'rowlabel'} = {};
2303: my $identifier =$sheet->{'coursefilename'}.'_'.$stype.'_'.$usymb;
2304: #
2305: if ($rowlabel_cache{$identifier}) {
2306: %{$sheet->{'rowlabel'}}=split(/___;___/,$rowlabel_cache{$identifier});
2307: } else {
2308: # Get the data and store it in the cache
2309: # Tie hash
2310: tie(%course_db,'GDBM_File',$sheet->{'coursefilename'}.'.db',
2311: &GDBM_READER(),0640);
2312: if (! tied(%course_db)) {
2313: return 'Could not access course data';
2314: }
2315: #
2316: my %parameter_labels=
2317: ('timestamp' =>
2318: 'parameter:Timestamp of Last Transaction<br>timestamp',
2319: 'subnumber' =>
2320: 'parameter:Number of Submissions<br>subnumber',
2321: 'tutornumber' =>
2322: 'parameter:Number of Tutor Responses<br>tutornumber',
2323: 'totalpoints' =>
2324: 'parameter:Total Points Granted<br>totalpoints');
2325: while (my ($key,$srcf) = each(%course_db)) {
2326: next if ($key !~ /^src_(\d+)\.(\d+)$/);
2327: my $mapid = $1;
2328: my $resid = $2;
2329: my $id = $mapid.'.'.$resid;
2330: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
2331: # Loop through the metadata for this key
2332: my @Metadata = split(/,/,
2333: &Apache::lonnet::metadata($srcf,'keys'));
2334: foreach my $key (@Metadata) {
2335: next if ($key !~ /^(stores|parameter)_/);
2336: my $display=
2337: &Apache::lonnet::metadata($srcf,$key.'.display');
2338: unless ($display) {
2339: $display.=
2340: &Apache::lonnet::metadata($srcf,$key.'.name');
2341: }
2342: $display.='<br>'.$key;
2343: $parameter_labels{$key}='parameter:'.$display;
2344: } # end of foreach
2345: }
2346: }
2347: untie(%course_db);
2348: # Store away the results
2349: $sheet->{'rowlabel'} = \%parameter_labels;
2350: $rowlabel_cache{$identifier}=join('___;___',%{$sheet->{'rowlabel'}});
2351: }
2352:
2353: }
2354:
2355: sub updatestudentassesssheet {
2356: my $sheet = shift;
2357: if ($sheet->{'sheettype'} eq 'studentcalc') {
2358: &get_student_rowlabels($sheet);
2359: } else {
2360: &get_assess_rowlabels($sheet);
2361: }
2362: # Determine if any of the information has changed
2363: my %f=&getformulas($sheet);
2364: my $changed=0;
2365:
2366: $sheet->{'maxrow'} = 0;
2367: my %existing=();
2368: # Now obsolete rows
2369: foreach my $cell (keys(%f)) {
2370: my $formula = $f{$cell};
2371: next if ($cell !~ /^A(\d+)/);
2372: $sheet->{'maxrow'} = $1 if ($1 > $sheet->{'maxrow'});
2373: my ($usy,$ufn)=split(/__&&&\__/,$formula);
2374: $existing{$usy}=1;
2375: unless ((exists($sheet->{'rowlabel'}->{$usy}) &&
2376: (defined($sheet->{'rowlabel'}->{$usy})) || (!$1) ||
2377: ($formula =~ /^(~~~|---)/) )) {
2378: $f{$_}='!!! Obsolete';
2379: $changed=1;
2380: }
2381: }
2382: # New and unknown keys
2383: foreach (keys(%{$sheet->{'rowlabel'}})) {
2384: unless ($existing{$_}) {
2385: $changed=1;
2386: $sheet->{'maxrow'}++;
2387: $f{'A'.$sheet->{'maxrow'}}=$_;
2388: }
2389: }
2390: if ($changed) {
2391: $sheet->{'f'} = \%f;
2392: &setformulas($sheet);
2393: }
2394: }
2395:
2396: # ------------------------------------------------ Load data for one assessment
2397:
2398: sub loadstudent{
2399: my ($sheet,$r,$c)=@_;
2400: my %constants=();
2401: my %formulas=&getformulas($sheet);
2402: $cachedassess=$sheet->{'uname'}.':'.$sheet->{'udom'};
2403: # Get ALL the student preformance data
2404: my @tmp = &Apache::lonnet::dump($sheet->{'cid'},
2405: $sheet->{'udom'},
2406: $sheet->{'uname'},
2407: undef);
2408: if ($tmp[0] !~ /^error:/) {
2409: %cachedstores = @tmp;
2410: }
2411: undef @tmp;
2412: #
2413: my @assessdata=();
2414: foreach my $cell (keys(%formulas)) {
2415: my $value = $formulas{$cell};
2416: if(defined($c) && ($c->aborted())) {
2417: last;
2418: }
2419: next if ($cell !~ /^A(\d+)/);
2420: my $row=$1;
2421: next if (($value =~ /^[!~-]/) || ($row==0));
2422: my ($usy,$ufn)=split(/__&&&\__/,$value);
2423: @assessdata=&exportsheet($sheet,$sheet->{'uname'},
2424: $sheet->{'udom'},
2425: 'assesscalc',$usy,$ufn,$r);
2426: my $index=0;
2427: foreach my $col ('A','B','C','D','E','F','G','H','I','J','K','L','M',
2428: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
2429: if (defined($assessdata[$index])) {
2430: if ($assessdata[$index]=~/\D/) {
2431: $constants{$col.$row}="'".$assessdata[$index]."'";
2432: } else {
2433: $constants{$col.$row}=$assessdata[$index];
2434: }
2435: $formulas{$col.$row}='import' if ($col ne 'A');
2436: }
2437: $index++;
2438: }
2439: }
2440: $cachedassess='';
2441: undef %cachedstores;
2442: $sheet->{'f'} = \%formulas;
2443: &setformulas($sheet);
2444: &setconstants($sheet,\%constants);
2445: }
2446:
2447: # --------------------------------------------------- Load data for one student
2448: #
2449: sub loadcourse {
2450: my ($sheet,$r,$c)=@_;
2451: #
2452: my %constants=();
2453: my %formulas=&getformulas($sheet);
2454: #
2455: my $total=0;
2456: foreach (keys(%formulas)) {
2457: if ($_=~/^A(\d+)/) {
2458: unless ($formulas{$_}=~/^[\!\~\-]/) { $total++; }
2459: }
2460: }
2461: my $now=0;
2462: my $since=time;
2463: $r->print(<<ENDPOP);
2464: <script>
2465: popwin=open('','popwin','width=400,height=100');
2466: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
2467: '<h3>Spreadsheet Calculation Progress</h3>'+
2468: '<form name=popremain>'+
2469: '<input type=text size=35 name=remaining value=Starting></form>'+
2470: '</body></html>');
2471: popwin.document.close();
2472: </script>
2473: ENDPOP
2474: $r->rflush();
2475: foreach (keys(%formulas)) {
2476: if(defined($c) && ($c->aborted())) {
2477: last;
2478: }
2479: next if ($_!~/^A(\d+)/);
2480: my $row=$1;
2481: next if (($formulas{$_}=~/^[\!\~\-]/) || ($row==0));
2482: my ($sname,$sdom) = split(':',$formulas{$_});
2483: my @studentdata=&exportsheet($sheet,$sname,$sdom,'studentcalc',
2484: undef,undef,$r);
2485: undef %userrdatas;
2486: $now++;
2487: $r->print('<script>popwin.document.popremain.remaining.value="'.
2488: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
2489: ' secs remaining";</script>');
2490: $r->rflush();
2491: #
2492: my $index=0;
2493: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
2494: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
2495: if (defined($studentdata[$index])) {
2496: my $col=$_;
2497: if ($studentdata[$index]=~/\D/) {
2498: $constants{$col.$row}="'".$studentdata[$index]."'";
2499: } else {
2500: $constants{$col.$row}=$studentdata[$index];
2501: }
2502: unless ($col eq 'A') {
2503: $formulas{$col.$row}='import';
2504: }
2505: }
2506: $index++;
2507: }
2508: }
2509: $sheet->{'f'}=\%formulas;
2510: &setformulas($sheet);
2511: &setconstants($sheet,\%constants);
2512: $r->print('<script>popwin.close()</script>');
2513: $r->rflush();
2514: }
2515:
2516: # ------------------------------------------------ Load data for one assessment
2517: #
2518: sub loadassessment {
2519: my ($sheet,$r,$c)=@_;
2520:
2521: my $uhome = $sheet->{'uhome'};
2522: my $uname = $sheet->{'uname'};
2523: my $udom = $sheet->{'udom'};
2524: my $symb = $sheet->{'usymb'};
2525: my $cid = $sheet->{'cid'};
2526: my $cnum = $sheet->{'cnum'};
2527: my $cdom = $sheet->{'cdom'};
2528: my $chome = $sheet->{'chome'};
2529:
2530: my $namespace;
2531: unless ($namespace=$cid) { return ''; }
2532: # Get stored values
2533: my %returnhash=();
2534: if ($cachedassess eq $uname.':'.$udom) {
2535: #
2536: # get data out of the dumped stores
2537: #
2538: my $version=$cachedstores{'version:'.$symb};
2539: my $scope;
2540: for ($scope=1;$scope<=$version;$scope++) {
2541: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2542: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2543: }
2544: }
2545: } else {
2546: #
2547: # restore individual
2548: #
2549: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
2550: for (my $version=1;$version<=$returnhash{'version'};$version++) {
2551: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2552: $returnhash{$_}=$returnhash{$version.':'.$_};
2553: }
2554: }
2555: }
2556: #
2557: # returnhash now has all stores for this resource
2558: # convert all "_" to "." to be able to use libraries, multiparts, etc
2559: #
2560: # This is dumb. It is also necessary :(
2561: my @oldkeys=keys %returnhash;
2562: #
2563: foreach my $name (@oldkeys) {
2564: my $value=$returnhash{$name};
2565: delete $returnhash{$name};
2566: $name=~s/\_/\./g;
2567: $returnhash{$name}=$value;
2568: }
2569: # initialize coursedata and userdata for this user
2570: undef %courseopt;
2571: undef %useropt;
2572:
2573: my $userprefix=$uname.'_'.$udom.'_';
2574:
2575: unless ($uhome eq 'no_host') {
2576: # Get coursedata
2577: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
2578: my %Tmp = &Apache::lonnet::dump('resourcedata',$cdom,$cnum);
2579: $courserdatas{$cid}=\%Tmp;
2580: $courserdatas{$cid.'.last_cache'}=time;
2581: }
2582: while (my ($name,$value) = each(%{$courserdatas{$cid}})) {
2583: $courseopt{$userprefix.$name}=$value;
2584: }
2585: # Get userdata (if present)
2586: unless ((time-$userrdatas{$uname.'@'.$udom.'.last_cache'})<240) {
2587: my %Tmp = &Apache::lonnet::dump('resourcedata',$udom,$uname);
2588: $userrdatas{$cid} = \%Tmp;
2589: # Most of the time the user does not have a 'resourcedata.db'
2590: # file. We need to cache that we got nothing instead of bothering
2591: # with requesting it every time.
2592: $userrdatas{$uname.'@'.$udom.'.last_cache'}=time;
2593: }
2594: while (my ($name,$value) = each(%{$userrdatas{$cid}})) {
2595: $useropt{$userprefix.$name}=$value;
2596: }
2597: }
2598: # now courseopt, useropt initialized for this user and course
2599: # (used by parmval)
2600: #
2601: # Load keys for this assessment only
2602: #
2603: my %thisassess=();
2604: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2605: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2606: $thisassess{$_}=1;
2607: }
2608: #
2609: # Load parameters
2610: #
2611: my %c=();
2612: if (tie(%parmhash,'GDBM_File',
2613: $sheet->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
2614: my %f=&getformulas($sheet);
2615: foreach my $cell (keys(%f)) {
2616: next if ($cell !~ /^A/);
2617: next if ($f{$cell} =~/^[\!\~\-]/);
2618: if ($f{$cell}=~/^parameter/) {
2619: if (defined($thisassess{$f{$cell}})) {
2620: my $val = &parmval($f{$cell},$sheet);
2621: $c{$cell} = $val;
2622: $c{$f{$cell}} = $val;
2623: }
2624: } else {
2625: my $key=$f{$cell};
2626: my $ckey=$key;
2627: $key=~s/^stores\_/resource\./;
2628: $key=~s/\_/\./g;
2629: $c{$cell}=$returnhash{$key};
2630: $c{$ckey}=$returnhash{$key};
2631: }
2632: }
2633: untie(%parmhash);
2634: }
2635: &setconstants($sheet,\%c);
2636: }
2637:
2638: # --------------------------------------------------------- Various form fields
2639:
2640: sub textfield {
2641: my ($title,$name,$value)=@_;
2642: return "\n<p><b>$title:</b><br>".
2643: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2644: }
2645:
2646: sub hiddenfield {
2647: my ($name,$value)=@_;
2648: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2649: }
2650:
2651: sub selectbox {
2652: my ($title,$name,$value,%options)=@_;
2653: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2654: foreach (sort keys(%options)) {
2655: $selout.='<option value="'.$_.'"';
2656: if ($_ eq $value) { $selout.=' selected'; }
2657: $selout.='>'.$options{$_}.'</option>';
2658: }
2659: return $selout.'</select>';
2660: }
2661:
2662: # =============================================== Update information in a sheet
2663: #
2664: # Add new users or assessments, etc.
2665: #
2666:
2667: sub updatesheet {
2668: my ($sheet)=@_;
2669: if ($sheet->{'sheettype'} eq 'classcalc') {
2670: return &updateclasssheet($sheet);
2671: } else {
2672: return &updatestudentassesssheet($sheet);
2673: }
2674: }
2675:
2676: # =================================================== Load the rows for a sheet
2677: #
2678: # Import the data for rows
2679: #
2680:
2681: sub loadrows {
2682: my ($sheet,$r)=@_;
2683: my $c = $r->connection;
2684: my $stype=$sheet->{'sheettype'};
2685: if ($stype eq 'classcalc') {
2686: &loadcourse($sheet,$r,$c);
2687: } elsif ($stype eq 'studentcalc') {
2688: &loadstudent($sheet,$r,$c);
2689: } else {
2690: &loadassessment($sheet,$r,$c);
2691: }
2692: }
2693:
2694: # ======================================================= Forced recalculation?
2695:
2696: sub checkthis {
2697: my ($keyname,$time)=@_;
2698: if (! exists($expiredates{$keyname})) {
2699: return 0;
2700: } else {
2701: return ($time<$expiredates{$keyname});
2702: }
2703: }
2704:
2705: sub forcedrecalc {
2706: my ($uname,$udom,$stype,$usymb)=@_;
2707: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2708: my $time=$oldsheets{$key.'.time'};
2709: if ($ENV{'form.forcerecalc'}) { return 1; }
2710: unless ($time) { return 1; }
2711: if ($stype eq 'assesscalc') {
2712: my $map=(split(/___/,$usymb))[0];
2713: if (&checkthis('::assesscalc:',$time) ||
2714: &checkthis('::assesscalc:'.$map,$time) ||
2715: &checkthis('::assesscalc:'.$usymb,$time) ||
2716: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2717: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2718: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2719: return 1;
2720: }
2721: } else {
2722: if (&checkthis('::studentcalc:',$time) ||
2723: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2724: return 1;
2725: }
2726: }
2727: return 0;
2728: }
2729:
2730: # ============================================================== Export handler
2731: # exportsheet
2732: # returns the export row for a spreadsheet.
2733: #
2734: sub exportsheet {
2735: my ($sheet,$uname,$udom,$stype,$usymb,$fn,$r)=@_;
2736: my $flag = 0;
2737: $uname = $uname || $sheet->{'uname'};
2738: $udom = $udom || $sheet->{'udom'};
2739: $stype = $stype || $sheet->{'sheettype'};
2740: my @exportarr=();
2741: # This handles the assessment sheets for '_feedback', etc
2742: if (defined($usymb) && ($usymb=~/^\_(\w+)/) &&
2743: (!defined($fn) || $fn eq '')) {
2744: $fn='default_'.$1;
2745: }
2746: #
2747: # Check if cached
2748: #
2749: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2750: my $found='';
2751: if ($oldsheets{$key}) {
2752: foreach (split(/___&\___/,$oldsheets{$key})) {
2753: my ($name,$value)=split(/___=___/,$_);
2754: if ($name eq $fn) {
2755: $found=$value;
2756: }
2757: }
2758: }
2759: unless ($found) {
2760: &cachedssheets($sheet,$uname,$udom);
2761: if ($oldsheets{$key}) {
2762: foreach (split(/___&\___/,$oldsheets{$key})) {
2763: my ($name,$value)=split(/___=___/,$_);
2764: if ($name eq $fn) {
2765: $found=$value;
2766: }
2767: }
2768: }
2769: }
2770: #
2771: # Check if still valid
2772: #
2773: if ($found) {
2774: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2775: $found='';
2776: }
2777: }
2778: if ($found) {
2779: #
2780: # Return what was cached
2781: #
2782: @exportarr=split(/___;___/,$found);
2783: return @exportarr;
2784: }
2785: #
2786: # Not cached
2787: #
2788: my ($newsheet)=&makenewsheet($uname,$udom,$stype,$usymb);
2789: &readsheet($newsheet,$fn);
2790: &updatesheet($newsheet);
2791: &loadrows($newsheet,$r);
2792: &calcsheet($newsheet);
2793: @exportarr=&exportdata($newsheet);
2794: ##
2795: ## Store now
2796: ##
2797: #
2798: # load in the old value
2799: #
2800: my %currentlystored=();
2801: if ($stype eq 'studentcalc') {
2802: my @tmp = &Apache::lonnet::get('nohist_calculatedsheets',
2803: [$key],
2804: $sheet->{'cdom'},$sheet->{'cnum'});
2805: if ($tmp[0]!~/^error/) {
2806: # We only got one key, so we will access it directly.
2807: foreach (split('___&___',$tmp[1])) {
2808: my ($key,$value) = split('___=___',$_);
2809: $key = '' if (! defined($key));
2810: $currentlystored{$key} = $value;
2811: }
2812: }
2813: } else {
2814: my @tmp = &Apache::lonnet::get('nohist_calculatedsheets_'.
2815: $sheet->{'cid'},[$key],
2816: $sheet->{'udom'},$sheet->{'uname'});
2817: if ($tmp[0]!~/^error/) {
2818: # We only got one key, so we will access it directly.
2819: foreach (split('___&___',$tmp[1])) {
2820: my ($key,$value) = split('___=___',$_);
2821: $key = '' if (! defined($key));
2822: $currentlystored{$key} = $value;
2823: }
2824: }
2825: }
2826: #
2827: # Add the new line
2828: #
2829: $currentlystored{$fn}=join('___;___',@exportarr);
2830: #
2831: # Stick everything back together
2832: #
2833: my $newstore='';
2834: foreach (keys(%currentlystored)) {
2835: if ($newstore) { $newstore.='___&___'; }
2836: $newstore.=$_.'___=___'.$currentlystored{$_};
2837: }
2838: my $now=time;
2839: #
2840: # Store away the new value
2841: #
2842: my $timekey = $key.'.time';
2843: if ($stype eq 'studentcalc') {
2844: my $result = &Apache::lonnet::put('nohist_calculatedsheets',
2845: { $key => $newstore,
2846: $timekey => $now },
2847: $sheet->{'cdom'},
2848: $sheet->{'cnum'});
2849: } else {
2850: my $result = &Apache::lonnet::put('nohist_calculatedsheets_'.$sheet->{'cid'},
2851: { $key => $newstore,
2852: $timekey => $now },
2853: $sheet->{'udom'},
2854: $sheet->{'uname'});
2855: }
2856: return @exportarr;
2857: }
2858:
2859: # ============================================================ Expiration Dates
2860: #
2861: # Load previously cached student spreadsheets for this course
2862: #
2863: sub load_spreadsheet_expirationdates {
2864: undef %expiredates;
2865: my $cid=$ENV{'request.course.id'};
2866: my @tmp = &Apache::lonnet::dump('nohist_expirationdates',
2867: $ENV{'course.'.$cid.'.domain'},
2868: $ENV{'course.'.$cid.'.num'});
2869: if (lc($tmp[0]) !~ /^error/){
2870: %expiredates = @tmp;
2871: }
2872: }
2873:
2874: # ===================================================== Calculated sheets cache
2875: #
2876: # Load previously cached student spreadsheets for this course
2877: #
2878:
2879: sub cachedcsheets {
2880: my $cid=$ENV{'request.course.id'};
2881: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
2882: $ENV{'course.'.$cid.'.domain'},
2883: $ENV{'course.'.$cid.'.num'});
2884: if ($tmp[0] !~ /^error/) {
2885: my %StupidTempHash = @tmp;
2886: while (my ($key,$value) = each %StupidTempHash) {
2887: $oldsheets{$key} = $value;
2888: }
2889: }
2890: }
2891:
2892: # ===================================================== Calculated sheets cache
2893: #
2894: # Load previously cached assessment spreadsheets for this student
2895: #
2896:
2897: sub cachedssheets {
2898: my ($sheet,$uname,$udom) = @_;
2899: $uname = $uname || $sheet->{'uname'};
2900: $udom = $udom || $sheet->{'udom'};
2901: if (! $loadedcaches{$uname.'_'.$udom}) {
2902: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
2903: $sheet->{'udom'},
2904: $sheet->{'uname'});
2905: if ($tmp[0] !~ /^error/) {
2906: my %TempHash = @tmp;
2907: my $count = 0;
2908: while (my ($key,$value) = each %TempHash) {
2909: $oldsheets{$key} = $value;
2910: $count++;
2911: }
2912: $loadedcaches{$sheet->{'uname'}.'_'.$sheet->{'udom'}}=1;
2913: }
2914: }
2915:
2916: }
2917:
2918: # ===================================================== Calculated sheets cache
2919: #
2920: # Load previously cached assessment spreadsheets for this student
2921: #
2922:
2923: # ================================================================ Main handler
2924: #
2925: # Interactive call to screen
2926: #
2927: #
2928: sub handler {
2929: my $r=shift;
2930:
2931: my ($sheettype) = ($r->uri=~/\/(\w+)$/);
2932:
2933: if (! exists($ENV{'form.Status'})) {
2934: $ENV{'form.Status'} = 'Active';
2935: }
2936: if ( ! exists($ENV{'form.output'}) ||
2937: ($sheettype ne 'classcalc' &&
2938: lc($ENV{'form.output'}) eq 'recursive excel')) {
2939: $ENV{'form.output'} = 'HTML';
2940: }
2941: #
2942: # Overload checking
2943: #
2944: # Check this server
2945: my $loaderror=&Apache::lonnet::overloaderror($r);
2946: if ($loaderror) { return $loaderror; }
2947: # Check the course homeserver
2948: $loaderror= &Apache::lonnet::overloaderror($r,
2949: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
2950: if ($loaderror) { return $loaderror; }
2951: #
2952: # HTML Header
2953: #
2954: if ($r->header_only) {
2955: $r->content_type('text/html');
2956: $r->send_http_header;
2957: return OK;
2958: }
2959: #
2960: # Global directory configs
2961: #
2962: $includedir = $r->dir_config('lonIncludes');
2963: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
2964: #
2965: # Roles Checking
2966: #
2967: # Needs to be in a course
2968: if (! $ENV{'request.course.fn'}) {
2969: # Not in a course, or not allowed to modify parms
2970: $ENV{'user.error.msg'}=
2971: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2972: return HTTP_NOT_ACCEPTABLE;
2973: }
2974: #
2975: # Get query string for limited number of parameters
2976: #
2977: &Apache::loncommon::get_unprocessed_cgi
2978: ($ENV{'QUERY_STRING'},['uname','udom','usymb','ufn','mapid','resid']);
2979: #
2980: # Deal with restricted student permissions
2981: #
2982: if ($ENV{'request.role'} =~ /^st\./) {
2983: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
2984: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
2985: }
2986: #
2987: # Look for special assessment spreadsheets - '_feedback', etc.
2988: #
2989: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'} ||
2990: $ENV{'form.ufn'} eq '' ||
2991: $ENV{'form.ufn'} eq 'default')) {
2992: $ENV{'form.ufn'}='default_'.$1;
2993: }
2994: if (!$ENV{'form.ufn'} || $ENV{'form.ufn'} eq 'default') {
2995: $ENV{'form.ufn'}='course_default_'.$sheettype;
2996: }
2997: #
2998: # Interactive loading of specific sheet?
2999: #
3000: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
3001: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
3002: }
3003: #
3004: # Determine the user name and domain for the sheet.
3005: my $aname;
3006: my $adom;
3007: unless ($ENV{'form.uname'}) {
3008: $aname=$ENV{'user.name'};
3009: $adom=$ENV{'user.domain'};
3010: } else {
3011: $aname=$ENV{'form.uname'};
3012: $adom=$ENV{'form.udom'};
3013: }
3014: #
3015: # Open page, try to prevent browser cache.
3016: #
3017: $r->content_type('text/html');
3018: $r->header_out('Cache-control','no-cache');
3019: $r->header_out('Pragma','no-cache');
3020: $r->send_http_header;
3021: #
3022: # Header....
3023: #
3024: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
3025: my $nothing = "''";
3026: if ($ENV{'browser.type'} eq 'explorer') {
3027: $nothing = "'javascript:void(0);'";
3028: }
3029:
3030: if ($ENV{'request.role'} !~ /^st\./) {
3031: $r->print(<<ENDSCRIPT);
3032: <script language="JavaScript">
3033:
3034: var editwin;
3035:
3036: function celledit(cellname,cellformula) {
3037: var edit_text = '';
3038: // cellformula may contain less-than and greater-than symbols, so
3039: // we need to escape them?
3040: edit_text +='<html><head><title>Cell Edit Window</title></head><body>';
3041: edit_text += '<form name="editwinform">';
3042: edit_text += '<center><h3>Cell '+cellname+'</h3>';
3043: edit_text += '<textarea name="newformula" cols="40" rows="6"';
3044: edit_text += ' wrap="off" >'+cellformula+'</textarea>';
3045: edit_text += '</br>';
3046: edit_text += '<input type="button" name="accept" value="Accept"';
3047: edit_text += ' onClick=\\\'javascript:';
3048: edit_text += 'opener.document.sheet.unewfield.value=';
3049: edit_text += '"'+cellname+'";';
3050: edit_text += 'opener.document.sheet.unewformula.value=';
3051: edit_text += 'document.editwinform.newformula.value;';
3052: edit_text += 'opener.document.sheet.submit();';
3053: edit_text += 'self.close()\\\' />';
3054: edit_text += ' ';
3055: edit_text += '<input type="button" name="abort" ';
3056: edit_text += 'value="Discard Changes"';
3057: edit_text += ' onClick="javascript:self.close()" />';
3058: edit_text += '</center></body></html>';
3059:
3060: if (editwin != null && !(editwin.closed) ) {
3061: editwin.close();
3062: }
3063:
3064: editwin = window.open($nothing,'CellEditWin','height=200,width=350,scrollbars=no,resizeable=yes,alwaysRaised=yes,dependent=yes',true);
3065: editwin.document.write(edit_text);
3066: }
3067:
3068: function changesheet(cn) {
3069: document.sheet.unewfield.value=cn;
3070: document.sheet.unewformula.value='changesheet';
3071: document.sheet.submit();
3072: }
3073:
3074: function insertrow(cn) {
3075: document.sheet.unewfield.value='insertrow';
3076: document.sheet.unewformula.value=cn;
3077: document.sheet.submit();
3078: }
3079:
3080: </script>
3081: ENDSCRIPT
3082: }
3083: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
3084: '<form action="'.$r->uri.'" name="sheet" method="post">');
3085: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
3086: &hiddenfield('udom',$ENV{'form.udom'}).
3087: &hiddenfield('usymb',$ENV{'form.usymb'}).
3088: &hiddenfield('unewfield','').
3089: &hiddenfield('unewformula',''));
3090: $r->rflush();
3091: #
3092: # Full recalc?
3093: #
3094: if ($ENV{'form.forcerecalc'}) {
3095: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
3096: undef %spreadsheets;
3097: undef %courserdatas;
3098: undef %userrdatas;
3099: undef %defaultsheets;
3100: undef %rowlabel_cache;
3101: }
3102: # Read new sheet or modified worksheet
3103: my ($sheet)=&makenewsheet($aname,$adom,$sheettype,$ENV{'form.usymb'});
3104: #
3105: # Check user permissions
3106: if (($sheet->{'sheettype'} eq 'classcalc' ) ||
3107: ($sheet->{'uname'} ne $ENV{'user.name'} ) ||
3108: ($sheet->{'udom'} ne $ENV{'user.domain'})) {
3109: unless (&Apache::lonnet::allowed('vgr',$sheet->{'cid'})) {
3110: $r->print('<h1>Access Permission Denied</h1>'.
3111: '</form></body></html>');
3112: return OK;
3113: }
3114: }
3115: # Print out user information
3116: $r->print('<h2>'.$sheet->{'coursedesc'}.'</h2>');
3117: if ($sheet->{'sheettype'} ne 'classcalc') {
3118: $r->print('<h2>'.&gettitle($sheet).'</h2><p>');
3119: }
3120: if ($sheet->{'sheettype'} eq 'assesscalc') {
3121: $r->print('<b>User:</b> '.$sheet->{'uname'}.
3122: '<br /><b>Domain:</b> '.$sheet->{'udom'}.'<br />');
3123: }
3124: if ($sheet->{'sheettype'} eq 'studentcalc' ||
3125: $sheet->{'sheettype'} eq 'assesscalc') {
3126: $r->print('<b>Section/Group:</b>'.$sheet->{'csec'}.'</p>');
3127: }
3128: #
3129: # If a new formula had been entered, go from work copy
3130: if ($ENV{'form.unewfield'}) {
3131: $r->print('<h2>Modified Workcopy</h2>');
3132: #$ENV{'form.unewformula'}=~s/\'/\"/g;
3133: $r->print('<p>Cell '.$ENV{'form.unewfield'}.' = <pre>');
3134: $r->print(&HTML::Entities::encode($ENV{'form.unewformula'}).
3135: '</pre></p>');
3136: $sheet->{'filename'} = $ENV{'form.ufn'};
3137: &tmpread($sheet,$ENV{'form.unewfield'},$ENV{'form.unewformula'});
3138: } elsif ($ENV{'form.saveas'}) {
3139: $sheet->{'filename'} = $ENV{'form.ufn'};
3140: &tmpread($sheet);
3141: } else {
3142: &readsheet($sheet,$ENV{'form.ufn'});
3143: }
3144: # Additional options
3145: if ($sheet->{'sheettype'} eq 'assesscalc') {
3146: $r->print('<p><font size=+2>'.
3147: '<a href="/adm/studentcalc?'.
3148: 'uname='.$sheet->{'uname'}.
3149: '&udom='.$sheet->{'udom'}.'">'.
3150: 'Level up: Student Sheet</a></font></p>');
3151: }
3152: if (($sheet->{'sheettype'} eq 'studentcalc') &&
3153: (&Apache::lonnet::allowed('vgr',$sheet->{'cid'}))) {
3154: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
3155: 'Level up: Course Sheet</a></font></p>');
3156: }
3157: # Recalc button
3158: $r->print('<br />'.
3159: '<input type="submit" name="forcerecalc" '.
3160: 'value="Completely Recalculate Sheet"></p>');
3161: # Save dialog
3162: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
3163: my $fname=$ENV{'form.ufn'};
3164: $fname=~s/\_[^\_]+$//;
3165: if ($fname eq 'default') { $fname='course_default'; }
3166: $r->print('<input type=submit name=saveas value="Save as ...">'.
3167: '<input type=text size=20 name=newfn value="'.$fname.'">'.
3168: 'make default: <input type=checkbox name="makedefufn"><p>');
3169: }
3170: $r->print(&hiddenfield('ufn',$sheet->{'filename'}));
3171: # Load dialog
3172: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
3173: $r->print('<p><input type=submit name=load value="Load ...">'.
3174: '<select name="loadthissheet">'.
3175: '<option name="default">Default</option>');
3176: foreach (&othersheets($sheet)) {
3177: $r->print('<option name="'.$_.'"');
3178: if ($ENV{'form.ufn'} eq $_) {
3179: $r->print(' selected');
3180: }
3181: $r->print('>'.$_.'</option>');
3182: }
3183: $r->print('</select><p>');
3184: if ($sheet->{'sheettype'} eq 'studentcalc') {
3185: &setothersheets($sheet,
3186: &othersheets($sheet,'assesscalc'));
3187: }
3188: }
3189: #
3190: # Set up caching mechanisms
3191: #
3192: &load_spreadsheet_expirationdates();
3193: # Clear out old caches if we have not seen this class before.
3194: if (exists($oldsheets{'course'}) &&
3195: $oldsheets{'course'} ne $sheet->{'cid'}) {
3196: undef %oldsheets;
3197: undef %loadedcaches;
3198: }
3199: $oldsheets{'course'} = $sheet->{'cid'};
3200: #
3201: if ($sheet->{'sheettype'} eq 'classcalc') {
3202: $r->print("Loading previously calculated student sheets ...\n");
3203: $r->rflush();
3204: &cachedcsheets();
3205: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
3206: $r->print("Loading previously calculated assessment sheets ...\n");
3207: $r->rflush();
3208: &cachedssheets($sheet);
3209: }
3210: # Update sheet, load rows
3211: $r->print("Loaded sheet(s), updating rows ...<br>\n");
3212: $r->rflush();
3213: #
3214: &updatesheet($sheet);
3215: $r->print("Updated rows, loading row data ...\n");
3216: $r->rflush();
3217: #
3218: &loadrows($sheet,$r);
3219: $r->print("Loaded row data, calculating sheet ...<br>\n");
3220: $r->rflush();
3221: #
3222: my $calcoutput=&calcsheet($sheet);
3223: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
3224: # See if something to save
3225: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
3226: my $fname='';
3227: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
3228: $fname=~s/\W/\_/g;
3229: if ($fname eq 'default') { $fname='course_default'; }
3230: $fname.='_'.$sheet->{'sheettype'};
3231: $sheet->{'filename'} = $fname;
3232: $ENV{'form.ufn'}=$fname;
3233: $r->print('<p>Saving spreadsheet: '.
3234: &writesheet($sheet,$ENV{'form.makedefufn'}).
3235: '<p>');
3236: }
3237: }
3238: #
3239: # Write the modified worksheet
3240: $r->print('<b>Current sheet:</b> '.$sheet->{'filename'}.'</p>');
3241: &tmpwrite($sheet);
3242: if ($sheet->{'sheettype'} eq 'assesscalc') {
3243: $r->print('<p>Show rows with empty A column: ');
3244: } else {
3245: $r->print('<p>Show empty rows: ');
3246: }
3247: #
3248: $r->print(&hiddenfield('userselhidden','true').
3249: '<input type="checkbox" name="showall" onClick="submit()"');
3250: #
3251: if ($ENV{'form.showall'}) {
3252: $r->print(' checked');
3253: } else {
3254: unless ($ENV{'form.userselhidden'}) {
3255: unless
3256: ($ENV{'course.'.$sheet->{'cid'}.'.hideemptyrows'} eq 'yes') {
3257: $r->print(' checked');
3258: $ENV{'form.showall'}=1;
3259: }
3260: }
3261: }
3262: $r->print('>');
3263: #
3264: # CSV format checkbox (classcalc sheets only)
3265: $r->print(' Output as <select name="output" size="1" onClick="submit()">'.
3266: "\n");
3267: foreach my $mode (qw/HTML CSV Excel/) {
3268: $r->print('<option value="'.$mode.'"');
3269: if ($ENV{'form.output'} eq $mode) {
3270: $r->print(' selected ');
3271: }
3272: $r->print('>'.$mode.'</option>'."\n");
3273: }
3274: #
3275: # Mulit-sheet excel takes too long and does not work at all for large
3276: # classes. Future inclusion of this option may be possible with the
3277: # Spreadsheet::WriteExcel::Big and speed improvements.
3278: #
3279: # if ($sheet->{'sheettype'} eq 'classcalc') {
3280: # $r->print('<option value="recursive excel"');
3281: # if ($ENV{'form.output'} eq 'recursive excel') {
3282: # $r->print(' selected ');
3283: # }
3284: # $r->print(">Multi-Sheet Excel</option>\n");
3285: # }
3286: $r->print("</select>\n");
3287: #
3288: if ($sheet->{'sheettype'} eq 'classcalc') {
3289: $r->print(' Student Status: '.
3290: &Apache::lonhtmlcommon::StatusOptions
3291: ($ENV{'form.Status'},'sheet'));
3292: }
3293: #
3294: # Buttons to insert rows
3295: # $r->print(<<ENDINSERTBUTTONS);
3296: #<br>
3297: #<input type='button' onClick='insertrow("top");'
3298: #value='Insert Row Top'>
3299: #<input type='button' onClick='insertrow("bottom");'
3300: #value='Insert Row Bottom'><br>
3301: #ENDINSERTBUTTONS
3302: # Print out sheet
3303: &outsheet($sheet,$r);
3304: $r->print('</form></body></html>');
3305: # Done
3306: return OK;
3307: }
3308:
3309: 1;
3310: __END__
3311:
3312:
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