1: #
2: # $Id: lonspreadsheet.pm,v 1.160.2.4 2003/03/19 17:16:23 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: $returnvalue = undef; #'unmatched parameter: '.$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 $rowlabel = 'Template</td><td> ';
965: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
966: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
967: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
968: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
969: push(@cols,{ name => 'template_'.$_,
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: $rowlabel = '';
991: }
992: } elsif ($ENV{'request.role'} =~ /^st\./) {
993: $rowlabel = 'Summary</td><td>0';
994: } else {
995: $rowlabel = 'Export</td><td>0';
996: }
997: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1000: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1001: push(@cols,{ name => $_.$n,
1002: formula => $sheet->{'f'}->{$_.$n},
1003: value => $sheet->{'values'}->{$_.$n}});
1004: }
1005: return ($rowlabel,@cols);
1006: }
1007:
1008: sub outrow {
1009: my ($sheet,$n)=@_;
1010: my @cols=();
1011: my $rowlabel;
1012: if ($n) {
1013: $rowlabel = $sheet->{'rowlabel'}->{$sheet->{'f'}->{'A'.$n}};
1014: } else {
1015: if ($sheet->{'sheettype'} eq 'classcalc') {
1016: $rowlabel = 'Summary</td><td>0';
1017: } else {
1018: $rowlabel = 'Export</td><td>0';
1019: }
1020: }
1021: foreach ('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: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1024: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1025: push(@cols,{ name => $_.$n,
1026: formula => $sheet->{'f'}->{$_.$n},
1027: value => $sheet->{'values'}->{$_.$n}});
1028: }
1029: return ($rowlabel,@cols);
1030: }
1031:
1032: # ------------------------------------------------ Add or change formula values
1033: sub setformulas {
1034: my ($sheet)=shift;
1035: %{$sheet->{'safe'}->varglob('f')}=%{$sheet->{'f'}};
1036: }
1037:
1038: # ------------------------------------------------ Add or change formula values
1039: sub setconstants {
1040: my ($sheet)=shift;
1041: my ($constants) = @_;
1042: if (! ref($constants)) {
1043: my %tmp = @_;
1044: $constants = \%tmp;
1045: }
1046: $sheet->{'constants'} = $constants;
1047: return %{$sheet->{'safe'}->varglob('c')}=%{$sheet->{'constants'}};
1048: }
1049:
1050: # --------------------------------------------- Set names of other spreadsheets
1051: sub setothersheets {
1052: my $sheet = shift;
1053: my @othersheets = @_;
1054: $sheet->{'othersheets'} = \@othersheets;
1055: @{$sheet->{'safe'}->varglob('os')}=@othersheets;
1056: return;
1057: }
1058:
1059: # ------------------------------------------------ Add or change formula values
1060: sub setrowlabels {
1061: my $sheet=shift;
1062: my ($rowlabel) = @_;
1063: if (! ref($rowlabel)) {
1064: my %tmp = @_;
1065: $rowlabel = \%tmp;
1066: }
1067: $sheet->{'rowlabel'}=$rowlabel;
1068: }
1069:
1070: # ------------------------------------------------------- Calculate spreadsheet
1071: sub calcsheet {
1072: my $sheet=shift;
1073: my $result = $sheet->{'safe'}->reval('&calc();');
1074: %{$sheet->{'values'}} = %{$sheet->{'safe'}->varglob('sheet_values')};
1075: return $result;
1076: }
1077:
1078: # ---------------------------------------------------------------- Get formulas
1079: # Return a copy of the formulas
1080: sub getformulas {
1081: my $sheet = shift;
1082: return %{$sheet->{'safe'}->varglob('f')};
1083: }
1084:
1085: sub geterrorlog {
1086: my $sheet = shift;
1087: return ${$sheet->{'safe'}->varglob('errorlog')};
1088: }
1089:
1090: sub gettitle {
1091: my $sheet = shift;
1092: if ($sheet->{'sheettype'} eq 'classcalc') {
1093: return $sheet->{'coursedesc'};
1094: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1095: return 'Grades for '.$sheet->{'uname'}.'@'.$sheet->{'udom'};
1096: } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
1097: if (($sheet->{'usymb'} eq '_feedback') ||
1098: ($sheet->{'usymb'} eq '_evaluation') ||
1099: ($sheet->{'usymb'} eq '_discussion') ||
1100: ($sheet->{'usymb'} eq '_tutoring')) {
1101: my $title = $sheet->{'usymb'};
1102: $title =~ s/^_//;
1103: $title = ucfirst($title);
1104: return $title;
1105: }
1106: return if (! defined($sheet->{'mapid'}) ||
1107: $sheet->{'mapid'} !~ /^\d+$/);
1108: my $mapid = $sheet->{'mapid'};
1109: return if (! defined($sheet->{'resid'}) ||
1110: $sheet->{'resid'} !~ /^\d+$/);
1111: my $resid = $sheet->{'resid'};
1112: my %course_db;
1113: tie(%course_db,'GDBM_File',$sheet->{'coursefilename'}.'.db',
1114: &GDBM_READER(),0640);
1115: return if (! tied(%course_db));
1116: my $key = 'title_'.$mapid.'.'.$resid;
1117: my $title = '';
1118: if (exists($course_db{$key})) {
1119: $title = $course_db{$key};
1120: } else {
1121: $title = $sheet->{'usymb'};
1122: }
1123: untie (%course_db);
1124: return $title;
1125: }
1126: }
1127:
1128: # ----------------------------------------------------- Get value of $f{'A'.$n}
1129: sub getfa {
1130: my $sheet = shift;
1131: my ($n)=@_;
1132: return $sheet->{'safe'}->reval('$f{"A'.$n.'"}');
1133: }
1134:
1135: # ------------------------------------------------------------- Export of A-row
1136: sub exportdata {
1137: my $sheet=shift;
1138: my @exportarray=();
1139: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1140: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1141: if (exists($sheet->{'values'}->{$_.'0'})) {
1142: push(@exportarray,$sheet->{'values'}->{$_.'0'});
1143: } else {
1144: push(@exportarray,'');
1145: }
1146: }
1147: return @exportarray;
1148: }
1149:
1150:
1151:
1152: sub update_student_sheet{
1153: my ($sheet,$r,$c) = @_;
1154: # Load in the studentcalc sheet
1155: &readsheet($sheet,'default_studentcalc');
1156: # Determine the structure (contained assessments, etc) of the sheet
1157: &updatesheet($sheet);
1158: # Load in the cached sheets for this student
1159: &cachedssheets($sheet);
1160: # Load in the (possibly cached) data from the assessment sheets
1161: &loadstudent($sheet,$r,$c);
1162: # Compute the sheet
1163: &calcsheet($sheet);
1164: }
1165:
1166: # ========================================================== End of Spreadsheet
1167: # =============================================================================
1168: #
1169: # Procedures for spreadsheet output
1170: #
1171: # --------------------------------------------- Produce output row n from sheet
1172:
1173: sub get_row {
1174: my ($sheet,$n) = @_;
1175: my ($rowlabel,@rowdata);
1176: if ($n eq '-') {
1177: ($rowlabel,@rowdata) = &templaterow($sheet);
1178: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1179: ($rowlabel,@rowdata) = &outrowassess($sheet,$n);
1180: } else {
1181: ($rowlabel,@rowdata) = &outrow($sheet,$n);
1182: }
1183: return ($rowlabel,@rowdata);
1184: }
1185:
1186: ########################################################################
1187: ########################################################################
1188: sub sort_indicies {
1189: my $sheet = shift;
1190: my @sortidx=();
1191: #
1192: if ($sheet->{'sheettype'} eq 'classcalc') {
1193: my @sortby=(undef);
1194: # Skip row 0
1195: for (my $row=1;$row<=$sheet->{'maxrow'};$row++) {
1196: my (undef,$sname,$sdom,$fullname,$section,$id) =
1197: split(':',$sheet->{'rowlabel'}->{$sheet->{'f'}->{'A'.$row}});
1198: push (@sortby, lc($fullname));
1199: push (@sortidx, $row);
1200: }
1201: @sortidx = sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1202: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1203: my @sortby1=(undef);
1204: my @sortby2=(undef);
1205: # Skip row 0
1206: for (my $row=1;$row<=$sheet->{'maxrow'};$row++) {
1207: my ($key,undef) = split(/__&&&\__/,$sheet->{'f'}->{'A'.$row});
1208: my $rowlabel = $sheet->{'rowlabel'}->{$key};
1209: my (undef,$symb,$mapid,$resid,$title,$ufn) =
1210: split(':',$rowlabel);
1211: $ufn = &Apache::lonnet::unescape($ufn);
1212: $symb = &Apache::lonnet::unescape($symb);
1213: $title = &Apache::lonnet::unescape($title);
1214: my ($sequence) = ($symb =~ /\/([^\/]*\.sequence)/);
1215: if ($sequence eq '') {
1216: $sequence = $symb;
1217: }
1218: push (@sortby1, $sequence);
1219: push (@sortby2, $title);
1220: push (@sortidx, $row);
1221: }
1222: @sortidx = sort { $sortby1[$a] cmp $sortby1[$b] ||
1223: $sortby2[$a] cmp $sortby2[$b] } @sortidx;
1224: } else {
1225: my @sortby=(undef);
1226: # Skip row 0
1227: for (my $row=1;$row<=$sheet->{'maxrow'};$row++) {
1228: push (@sortby, $sheet->{'safe'}->reval('$f{"A'.$row.'"}'));
1229: push (@sortidx, $row);
1230: }
1231: @sortidx = sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1232: }
1233: return @sortidx;
1234: }
1235:
1236: #############################################################
1237: ### ###
1238: ### Spreadsheet Output Routines ###
1239: ### ###
1240: #############################################################
1241:
1242: ############################################
1243: ## HTML output routines ##
1244: ############################################
1245: sub html_editable_cell {
1246: my ($cell,$bgcolor) = @_;
1247: my $result;
1248: my ($name,$formula,$value);
1249: if (defined($cell)) {
1250: $name = $cell->{'name'};
1251: $formula = $cell->{'formula'};
1252: $value = $cell->{'value'};
1253: }
1254: $name = '' if (! defined($name));
1255: $formula = '' if (! defined($formula));
1256: if (! defined($value)) {
1257: $value = '<font color="'.$bgcolor.'">#</font>';
1258: if ($formula ne '') {
1259: $value = '<i>undefined value</i>';
1260: }
1261: } elsif ($value =~ /^\s*$/ ) {
1262: $value = '<font color="'.$bgcolor.'">#</font>';
1263: } else {
1264: $value = &HTML::Entities::encode($value) if ($value !~/ /);
1265: }
1266: # Make the formula safe for outputting
1267: $formula =~ s/\'/\"/g;
1268: # The formula will be parsed by the browser *twice* before being
1269: # displayed to the user for editing.
1270: $formula = &HTML::Entities::encode(&HTML::Entities::encode($formula));
1271: # Escape newlines so they make it into the edit window
1272: $formula =~ s/\n/\\n/gs;
1273: # Glue everything together
1274: $result .= "<a href=\"javascript:celledit(\'".
1275: $name."','".$formula."');\">".$value."</a>";
1276: return $result;
1277: }
1278:
1279: sub html_uneditable_cell {
1280: my ($cell,$bgcolor) = @_;
1281: my $value = (defined($cell) ? $cell->{'value'} : '');
1282: $value = &HTML::Entities::encode($value) if ($value !~/ /);
1283: return ' '.$value.' ';
1284: }
1285:
1286: sub outsheet_html {
1287: my ($sheet,$r) = @_;
1288: my ($num_uneditable,$realm,$row_type);
1289: my $requester_is_student = ($ENV{'request.role'} =~ /^st\./);
1290: if ($sheet->{'sheettype'} eq 'assesscalc') {
1291: $num_uneditable = 1;
1292: $realm = 'Assessment';
1293: $row_type = 'Item';
1294: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1295: $num_uneditable = 26;
1296: $realm = 'User';
1297: $row_type = 'Assessment';
1298: } elsif ($sheet->{'sheettype'} eq 'classcalc') {
1299: $num_uneditable = 26;
1300: $realm = 'Course';
1301: $row_type = 'Student';
1302: } else {
1303: return; # error
1304: }
1305: ####################################
1306: # Print out header table
1307: ####################################
1308: my $num_left = 52-$num_uneditable;
1309: my $tabledata =<<"END";
1310: <table border="2">
1311: <tr>
1312: <th colspan="2" rowspan="2"><font size="+2">$realm</font></th>
1313: <td bgcolor="#FFDDDD" colspan="$num_uneditable">
1314: <b><font size="+1">Import</font></b></td>
1315: <td colspan="$num_left">
1316: <b><font size="+1">Calculations</font></b></td>
1317: </tr><tr>
1318: END
1319: my $label_num = 0;
1320: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
1321: if ($label_num<$num_uneditable) {
1322: $tabledata.='<td bgcolor="#FFDDDD">';
1323: } else {
1324: $tabledata.='<td>';
1325: }
1326: $tabledata.="<b><font size=+1>$_</font></b></td>";
1327: $label_num++;
1328: }
1329: $tabledata.="</tr>\n";
1330: $r->print($tabledata);
1331: ####################################
1332: # Print out template row
1333: ####################################
1334: my ($num_cols_output,$row_html,$rowlabel,@rowdata);
1335:
1336: if (! $requester_is_student) {
1337: ($rowlabel,@rowdata) = &get_row($sheet,'-');
1338: $row_html = '<tr><td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1339: $num_cols_output = 0;
1340: foreach my $cell (@rowdata) {
1341: if ($requester_is_student ||
1342: $num_cols_output++ < $num_uneditable) {
1343: $row_html .= '<td bgcolor="#FFDDDD">';
1344: $row_html .= &html_uneditable_cell($cell,'#FFDDDD');
1345: } else {
1346: $row_html .= '<td bgcolor="#EOFFDD">';
1347: $row_html .= &html_editable_cell($cell,'#E0FFDD');
1348: }
1349: $row_html .= '</td>';
1350: }
1351: $row_html.= "</tr>\n";
1352: $r->print($row_html);
1353: }
1354: ####################################
1355: # Print out summary/export row
1356: ####################################
1357: ($rowlabel,@rowdata) = &get_row($sheet,'0');
1358: $row_html = '<tr><td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1359: $num_cols_output = 0;
1360: foreach my $cell (@rowdata) {
1361: if ($num_cols_output++ < 26 && ! $requester_is_student) {
1362: $row_html .= '<td bgcolor="#CCCCFF">';
1363: $row_html .= &html_editable_cell($cell,'#CCCCFF');
1364: } else {
1365: $row_html .= '<td bgcolor="#DDCCFF">';
1366: $row_html .= &html_uneditable_cell($cell,'#CCCCFF');
1367: }
1368: $row_html .= '</td>';
1369: }
1370: $row_html.= "</tr>\n";
1371: $r->print($row_html);
1372: $r->print('</table>');
1373: ####################################
1374: # Prepare to output rows
1375: ####################################
1376: my @Rows = &sort_indicies($sheet);
1377: #
1378: # Loop through the rows and output them one at a time
1379: my $rows_output=0;
1380: foreach my $rownum (@Rows) {
1381: my ($rowlabel,@rowdata) = &get_row($sheet,$rownum);
1382: next if ($rowlabel =~ /^\s*$/);
1383: next if (($sheet->{'sheettype'} eq 'assesscalc') &&
1384: (! $ENV{'form.showall'}) &&
1385: ($rowdata[0]->{'value'} =~ /^\s*$/));
1386: if (! $ENV{'form.showall'} &&
1387: $sheet->{'sheettype'} =~ /^(studentcalc|classcalc)$/) {
1388: my $row_is_empty = 1;
1389: foreach my $cell (@rowdata) {
1390: if ($cell->{'value'} !~ /^\s*$/) {
1391: $row_is_empty = 0;
1392: last;
1393: }
1394: }
1395: next if ($row_is_empty);
1396: }
1397: #
1398: my $defaultbg='#E0FF';
1399: #
1400: my $row_html ="\n".'<tr><td><b><font size=+1>'.$rownum.
1401: '</font></b></td>';
1402: #
1403: if ($sheet->{'sheettype'} eq 'classcalc') {
1404: $row_html.='<td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1405: # Output links for each student?
1406: # Nope, that is already done for us in format_html_rowlabel
1407: # (for now)
1408: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1409: my $ufn = (split(/:/,$rowlabel))[5];
1410: $row_html.='<td>'.&format_html_rowlabel($sheet,$rowlabel);
1411: $row_html.= '<br>'.
1412: '<select name="sel_'.$rownum.'" '.
1413: 'onChange="changesheet('.$rownum.')">'.
1414: '<option name="default">Default</option>';
1415:
1416: foreach (@{$sheet->{'othersheets'}}) {
1417: $row_html.='<option name="'.$_.'"';
1418: if ($ufn eq $_) {
1419: $row_html.=' selected';
1420: }
1421: $row_html.='>'.$_.'</option>';
1422: }
1423: $row_html.='</select></td>';
1424: } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
1425: $row_html.='<td>'.&format_html_rowlabel($sheet,$rowlabel).'</td>';
1426: }
1427: #
1428: my $shown_cells = 0;
1429: foreach my $cell (@rowdata) {
1430: my $value = $cell->{'value'};
1431: my $formula = $cell->{'formula'};
1432: my $cellname = $cell->{'name'};
1433: #
1434: my $bgcolor;
1435: if ($shown_cells && ($shown_cells/5 == int($shown_cells/5))) {
1436: $bgcolor = $defaultbg.'99';
1437: } else {
1438: $bgcolor = $defaultbg.'DD';
1439: }
1440: $bgcolor='#FFDDDD' if ($shown_cells < $num_uneditable);
1441: #
1442: $row_html.='<td bgcolor='.$bgcolor.'>';
1443: if ($requester_is_student || $shown_cells < $num_uneditable) {
1444: $row_html .= &html_uneditable_cell($cell,$bgcolor);
1445: } else {
1446: $row_html .= &html_editable_cell($cell,$bgcolor);
1447: }
1448: $row_html.='</td>';
1449: $shown_cells++;
1450: }
1451: if ($row_html) {
1452: if ($rows_output % 25 == 0) {
1453: $r->print("</table>\n<br>\n");
1454: $r->rflush();
1455: $r->print('<table border=2>'.
1456: '<tr><td> <td>'.$row_type.'</td>'.
1457: '<td>'.
1458: join('</td><td>',
1459: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1460: 'abcdefghijklmnopqrstuvwxyz'))).
1461: "</td></tr>\n");
1462: }
1463: $rows_output++;
1464: $r->print($row_html);
1465: }
1466: }
1467: #
1468: $r->print('</table>');
1469: #
1470: # Debugging code (be sure to uncomment errorlog code in safe space):
1471: #
1472: # $r->print("\n<pre>");
1473: # $r->print(&geterrorlog($sheet));
1474: # $r->print("\n</pre>");
1475: return 1;
1476: }
1477:
1478: ############################################
1479: ## csv output routines ##
1480: ############################################
1481: sub outsheet_csv {
1482: my ($sheet,$r) = @_;
1483: my $csvdata = '';
1484: my @Values;
1485: ####################################
1486: # Prepare to output rows
1487: ####################################
1488: my @Rows = &sort_indicies($sheet);
1489: #
1490: # Loop through the rows and output them one at a time
1491: my $rows_output=0;
1492: foreach my $rownum (@Rows) {
1493: my ($rowlabel,@rowdata) = &get_row($sheet,$rownum);
1494: next if ($rowlabel =~ /^\s*$/);
1495: push (@Values,&format_csv_rowlabel($sheet,$rowlabel));
1496: foreach my $cell (@rowdata) {
1497: push (@Values,'"'.$cell->{'value'}.'"');
1498: }
1499: $csvdata.= join(',',@Values)."\n";
1500: @Values = ();
1501: }
1502: #
1503: # Write the CSV data to a file and serve up a link
1504: #
1505: my $filename = '/prtspool/'.
1506: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1507: time.'_'.rand(1000000000).'.csv';
1508: my $file;
1509: unless ($file = Apache::File->new('>'.'/home/httpd'.$filename)) {
1510: $r->log_error("Couldn't open $filename for output $!");
1511: $r->print("Problems occured in writing the csv file. ".
1512: "This error has been logged. ".
1513: "Please alert your LON-CAPA administrator.");
1514: $r->print("<pre>\n".$csvdata."</pre>\n");
1515: return 0;
1516: }
1517: print $file $csvdata;
1518: close($file);
1519: $r->print('<br /><br />'.
1520: '<a href="'.$filename.'">Your CSV spreadsheet.</a>'."\n");
1521: #
1522: return 1;
1523: }
1524:
1525: ############################################
1526: ## Excel output routines ##
1527: ############################################
1528: sub outsheet_recursive_excel {
1529: my ($sheet,$r) = @_;
1530: my $c = $r->connection;
1531: return undef if ($sheet->{'sheettype'} ne 'classcalc');
1532: my ($workbook,$filename) = &create_excel_spreadsheet($sheet,$r);
1533: return undef if (! defined($workbook));
1534: #
1535: # Create main worksheet
1536: my $main_worksheet = $workbook->addworksheet('main');
1537: #
1538: # Figure out who the students are
1539: my %f=&getformulas($sheet);
1540: my $count = 0;
1541: $r->print(<<END);
1542: <p>
1543: Compiling Excel Workbook with a worksheet for each student.
1544: </p><p>
1545: This operation may take longer than a complete recalculation of the
1546: spreadsheet.
1547: </p><p>
1548: To abort this operation, hit the stop button on your browser.
1549: </p><p>
1550: A link to the spreadsheet will be available at the end of this process.
1551: </p>
1552: <p>
1553: END
1554: $r->rflush();
1555: my $starttime = time;
1556: foreach my $rownum (&sort_indicies($sheet)) {
1557: $count++;
1558: my ($sname,$sdom) = split(':',$f{'A'.$rownum});
1559: my $student_excel_worksheet=$workbook->addworksheet($sname.'@'.$sdom);
1560: # Create a new spreadsheet
1561: my $studentsheet = &makenewsheet($sname,$sdom,'studentcalc',undef);
1562: # Read in the spreadsheet definition
1563: &update_student_sheet($studentsheet,$r,$c);
1564: # Stuff the sheet into excel
1565: &export_sheet_as_excel($studentsheet,$student_excel_worksheet);
1566: my $totaltime = int((time - $starttime) / $count * $sheet->{'maxrow'});
1567: my $timeleft = int((time - $starttime) / $count * ($sheet->{'maxrow'} - $count));
1568: if ($count % 5 == 0) {
1569: $r->print($count.' students completed.'.
1570: ' Time remaining: '.$timeleft.' sec. '.
1571: ' Estimated total time: '.$totaltime." sec <br />\n");
1572: $r->rflush();
1573: }
1574: if(defined($c) && ($c->aborted())) {
1575: last;
1576: }
1577: }
1578: #
1579: if(! $c->aborted() ) {
1580: $r->print('All students spreadsheets completed!<br />');
1581: $r->rflush();
1582: #
1583: # &export_sheet_as_excel fills $worksheet with the data from $sheet
1584: &export_sheet_as_excel($sheet,$main_worksheet);
1585: #
1586: $workbook->close();
1587: # Okay, the spreadsheet is taken care of, so give the user a link.
1588: $r->print('<br /><br />'.
1589: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1590: } else {
1591: $workbook->close(); # Not sure how necessary this is.
1592: #unlink('/home/httpd'.$filename); # No need to keep this around?
1593: }
1594: return 1;
1595: }
1596:
1597: sub outsheet_excel {
1598: my ($sheet,$r) = @_;
1599: my ($workbook,$filename) = &create_excel_spreadsheet($sheet,$r);
1600: return undef if (! defined($workbook));
1601: my $sheetname;
1602: if ($sheet->{'sheettype'} eq 'classcalc') {
1603: $sheetname = 'Main';
1604: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
1605: $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'};
1606: } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
1607: $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'}.' assessment';
1608: }
1609: my $worksheet = $workbook->addworksheet($sheetname);
1610: #
1611: # &export_sheet_as_excel fills $worksheet with the data from $sheet
1612: &export_sheet_as_excel($sheet,$worksheet);
1613: #
1614: $workbook->close();
1615: # Okay, the spreadsheet is taken care of, so give the user a link.
1616: $r->print('<br /><br />'.
1617: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1618: return 1;
1619: }
1620:
1621: sub create_excel_spreadsheet {
1622: my ($sheet,$r) = @_;
1623: my $filename = '/prtspool/'.
1624: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1625: time.'_'.rand(1000000000).'.xls';
1626: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1627: if (! defined($workbook)) {
1628: $r->log_error("Error creating excel spreadsheet $filename: $!");
1629: $r->print("Problems creating new Excel file. ".
1630: "This error has been logged. ".
1631: "Please alert your LON-CAPA administrator");
1632: return undef;
1633: }
1634: #
1635: # The spreadsheet stores temporary data in files, then put them
1636: # together. If needed we should be able to disable this (memory only).
1637: # The temporary directory must be specified before calling 'addworksheet'.
1638: # File::Temp is used to determine the temporary directory.
1639: $workbook->set_tempdir('/home/httpd/perl/tmp');
1640: #
1641: # Determine the name to give the worksheet
1642: return ($workbook,$filename);
1643: }
1644:
1645: sub export_sheet_as_excel {
1646: my $sheet = shift;
1647: my $worksheet = shift;
1648: #
1649: my $rows_output = 0;
1650: my $cols_output = 0;
1651: ####################################
1652: # Write an identifying row #
1653: ####################################
1654: my @Headerinfo = ($sheet->{'coursedesc'});
1655: my $title = &gettitle($sheet);
1656: $cols_output = 0;
1657: if (defined($title)) {
1658: $worksheet->write($rows_output++,$cols_output++,$title);
1659: }
1660: ####################################
1661: # Write the summary/export row #
1662: ####################################
1663: my ($rowlabel,@rowdata) = &get_row($sheet,'0');
1664: my $label = &format_excel_rowlabel($sheet,$rowlabel);
1665: $cols_output = 0;
1666: $worksheet->write($rows_output,$cols_output++,$label);
1667: foreach my $cell (@rowdata) {
1668: $worksheet->write($rows_output,$cols_output++,$cell->{'value'});
1669: }
1670: $rows_output+= 2; # Skip a row, just for fun
1671: ####################################
1672: # Prepare to output rows
1673: ####################################
1674: my @Rows = &sort_indicies($sheet);
1675: #
1676: # Loop through the rows and output them one at a time
1677: foreach my $rownum (@Rows) {
1678: my ($rowlabel,@rowdata) = &get_row($sheet,$rownum);
1679: next if ($rowlabel =~ /^[\s]*$/);
1680: $cols_output = 0;
1681: my $label = &format_excel_rowlabel($sheet,$rowlabel);
1682: if ( ! $ENV{'form.showall'} &&
1683: $sheet->{'sheettype'} =~ /^(studentcalc|classcalc)$/) {
1684: my $row_is_empty = 1;
1685: foreach my $cell (@rowdata) {
1686: if ($cell->{'value'} !~ /^\s*$/) {
1687: $row_is_empty = 0;
1688: last;
1689: }
1690: }
1691: next if ($row_is_empty);
1692: }
1693: $worksheet->write($rows_output,$cols_output++,$label);
1694: if (ref($label)) {
1695: $cols_output = (scalar(@$label));
1696: }
1697: foreach my $cell (@rowdata) {
1698: $worksheet->write($rows_output,$cols_output++,$cell->{'value'});
1699: }
1700: $rows_output++;
1701: }
1702: return;
1703: }
1704:
1705: ############################################
1706: ## XML output routines ##
1707: ############################################
1708: sub outsheet_xml {
1709: my ($sheet,$r) = @_;
1710: ## Someday XML
1711: ## Will be rendered for the user
1712: ## But not on this day
1713: }
1714:
1715: ##
1716: ## Outsheet - calls other outsheet_* functions
1717: ##
1718: sub outsheet {
1719: my ($sheet,$r)=@_;
1720: if (! exists($ENV{'form.output'})) {
1721: $ENV{'form.output'} = 'HTML';
1722: }
1723: if (lc($ENV{'form.output'}) eq 'csv') {
1724: &outsheet_csv($sheet,$r);
1725: } elsif (lc($ENV{'form.output'}) eq 'excel') {
1726: &outsheet_excel($sheet,$r);
1727: } elsif (lc($ENV{'form.output'}) eq 'recursive excel') {
1728: &outsheet_recursive_excel($sheet,$r);
1729: # } elsif (lc($ENV{'form.output'}) eq 'xml' ) {
1730: # &outsheet_xml($sheet,$r);
1731: } else {
1732: &outsheet_html($sheet,$r);
1733: }
1734: }
1735:
1736: ########################################################################
1737: ########################################################################
1738: sub othersheets {
1739: my ($sheet,$stype)=@_;
1740: $stype = $sheet->{'sheettype'} if (! defined($stype));
1741: #
1742: my $cnum = $sheet->{'cnum'};
1743: my $cdom = $sheet->{'cdom'};
1744: my $chome = $sheet->{'chome'};
1745: #
1746: my @alternatives=();
1747: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1748: my ($tmp) = keys(%results);
1749: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1750: @alternatives = sort (keys(%results));
1751: }
1752: return @alternatives;
1753: }
1754:
1755: #
1756: # -------------------------------------- Parse a spreadsheet
1757: #
1758: sub parse_sheet {
1759: # $sheetxml is a scalar reference or a scalar
1760: my ($sheetxml) = @_;
1761: if (! ref($sheetxml)) {
1762: my $tmp = $sheetxml;
1763: $sheetxml = \$tmp;
1764: }
1765: my %f;
1766: my $parser=HTML::TokeParser->new($sheetxml);
1767: my $token;
1768: while ($token=$parser->get_token) {
1769: if ($token->[0] eq 'S') {
1770: if ($token->[1] eq 'field') {
1771: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1772: $parser->get_text('/field');
1773: }
1774: if ($token->[1] eq 'template') {
1775: $f{'template_'.$token->[2]->{'col'}}=
1776: $parser->get_text('/template');
1777: }
1778: }
1779: }
1780: return \%f;
1781: }
1782:
1783: #
1784: # -------------------------------------- Read spreadsheet formulas for a course
1785: #
1786: sub readsheet {
1787: my ($sheet,$fn)=@_;
1788: #
1789: my $stype = $sheet->{'sheettype'};
1790: my $cnum = $sheet->{'cnum'};
1791: my $cdom = $sheet->{'cdom'};
1792: my $chome = $sheet->{'chome'};
1793: #
1794: if (! defined($fn)) {
1795: # There is no filename. Look for defaults in course and global, cache
1796: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1797: my %tmphash = &Apache::lonnet::get('environment',
1798: ['spreadsheet_default_'.$stype],
1799: $cdom,$cnum);
1800: my ($tmp) = keys(%tmphash);
1801: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1802: $fn = 'default_'.$stype;
1803: } else {
1804: $fn = $tmphash{'spreadsheet_default_'.$stype};
1805: }
1806: unless (($fn) && ($fn!~/^error\:/)) {
1807: $fn='default_'.$stype;
1808: }
1809: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1810: }
1811: }
1812: # $fn now has a value
1813: $sheet->{'filename'} = $fn;
1814: # see if sheet is cached
1815: my $fstring='';
1816: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1817: my %tmp = split(/___;___/,$fstring);
1818: $sheet->{'f'} = \%tmp;
1819: &setformulas($sheet);
1820: } else {
1821: # Not cached, need to read
1822: my %f=();
1823: if ($fn=~/^default\_/) {
1824: my $sheetxml='';
1825: my $fh;
1826: my $dfn=$fn;
1827: $dfn=~s/\_/\./g;
1828: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1829: $sheetxml=join('',<$fh>);
1830: } else {
1831: # $sheetxml='<field row="0" col="A">"Error"</field>';
1832: $sheetxml='<field row="0" col="A"></field>';
1833: }
1834: %f=%{&parse_sheet(\$sheetxml)};
1835: } elsif($fn=~/\/*\.spreadsheet$/) {
1836: my $sheetxml=&Apache::lonnet::getfile
1837: (&Apache::lonnet::filelocation('',$fn));
1838: if ($sheetxml == -1) {
1839: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1840: .$fn.'"</field>';
1841: }
1842: %f=%{&parse_sheet(\$sheetxml)};
1843: } else {
1844: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1845: my ($tmp) = keys(%tmphash);
1846: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1847: foreach (keys(%tmphash)) {
1848: $f{$_}=$tmphash{$_};
1849: }
1850: } else {
1851: # Unable to grab the specified spreadsheet,
1852: # so we get the default ones instead.
1853: $fn = 'default_'.$stype;
1854: $sheet->{'filename'} = $fn;
1855: my $dfn = $fn;
1856: $dfn =~ s/\_/\./g;
1857: my $sheetxml;
1858: if (my $fh=Apache::File->new($includedir.'/'.$dfn)) {
1859: $sheetxml = join('',<$fh>);
1860: } else {
1861: $sheetxml='<field row="0" col="A">'.
1862: '"Unable to load spreadsheet"</field>';
1863: }
1864: %f=%{&parse_sheet(\$sheetxml)};
1865: }
1866: }
1867: # Cache and set
1868: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1869: $sheet->{'f'}=\%f;
1870: &setformulas($sheet);
1871: }
1872: }
1873:
1874: # -------------------------------------------------------- Make new spreadsheet
1875: sub makenewsheet {
1876: my ($uname,$udom,$stype,$usymb)=@_;
1877: my $sheet={};
1878: $sheet->{'uname'} = $uname;
1879: $sheet->{'udom'} = $udom;
1880: $sheet->{'sheettype'} = $stype;
1881: $sheet->{'usymb'} = $usymb;
1882: $sheet->{'mapid'} = $ENV{'form.mapid'};
1883: $sheet->{'resid'} = $ENV{'form.resid'};
1884: $sheet->{'cid'} = $ENV{'request.course.id'};
1885: if (! exists($Section{$uname.':'.$udom})) {
1886: my $classlist = &Apache::loncoursedata::get_classlist();
1887: foreach my $student (keys(%$classlist)) {
1888: my ($studentDomain,$studentName,undef,undef,undef,$studentSection,
1889: undef,undef) = @{$classlist->{$student}};
1890: $Section{$studentName.':'.$studentDomain} = $studentSection;
1891: }
1892: }
1893: $sheet->{'csec'} = $Section{$uname.':'.$udom};
1894: $sheet->{'coursefilename'} = $ENV{'request.course.fn'};
1895: $sheet->{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1896: $sheet->{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1897: $sheet->{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1898: $sheet->{'coursedesc'} = $ENV{'course.'.$ENV{'request.course.id'}.
1899: '.description'};
1900: $sheet->{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1901: #
1902: #
1903: $sheet->{'f'} = {};
1904: $sheet->{'constants'} = {};
1905: $sheet->{'othersheets'} = [];
1906: $sheet->{'rowlabel'} = {};
1907: #
1908: #
1909: $sheet->{'safe'}=&initsheet($sheet->{'sheettype'});
1910: #
1911: # Place all the %$sheet items into the safe space except the safe space
1912: # itself
1913: my $initstring = '';
1914: foreach (qw/uname udom sheettype usymb cid csec coursefilename
1915: cnum cdom chome uhome/) {
1916: $initstring.= qq{\$$_="$sheet->{$_}";};
1917: }
1918: $sheet->{'safe'}->reval($initstring);
1919: return $sheet;
1920: }
1921:
1922: # ------------------------------------------------------------ Save spreadsheet
1923: sub writesheet {
1924: my ($sheet,$makedef)=@_;
1925: my $cid=$sheet->{'cid'};
1926: if (&Apache::lonnet::allowed('opa',$cid)) {
1927: my %f=&getformulas($sheet);
1928: my $stype= $sheet->{'sheettype'};
1929: my $cnum = $sheet->{'cnum'};
1930: my $cdom = $sheet->{'cdom'};
1931: my $chome= $sheet->{'chome'};
1932: my $fn = $sheet->{'filename'};
1933: # Cache new sheet
1934: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1935: # Write sheet
1936: foreach (keys(%f)) {
1937: delete($f{$_}) if ($f{$_} eq 'import');
1938: }
1939: my $reply = &Apache::lonnet::put($fn,\%f,$cdom,$cnum);
1940: if ($reply eq 'ok') {
1941: $reply = &Apache::lonnet::put($stype.'_spreadsheets',
1942: {$fn => $ENV{'user.name'}.'@'.$ENV{'user.domain'}},
1943: $cdom,$cnum);
1944: if ($reply eq 'ok') {
1945: if ($makedef) {
1946: $reply = &Apache::lonnet::put('environment',
1947: {'spreadsheet_default_'.$stype => $fn },
1948: $cdom,$cnum);
1949: if ($reply eq 'ok' &&
1950: ($sheet->{'sheettype'} eq 'studentcalc' ||
1951: $sheet->{'sheettype'} eq 'assesscalc')) {
1952: # Expire the spreadsheets of the other students.
1953: &Apache::lonnet::expirespread('','','studentcalc','');
1954: }
1955: return $reply;
1956: }
1957: return $reply;
1958: }
1959: return $reply;
1960: }
1961: return $reply;
1962: }
1963: return 'unauthorized';
1964: }
1965:
1966: # ----------------------------------------------- Make a temp copy of the sheet
1967: # "Modified workcopy" - interactive only
1968: #
1969: sub tmpwrite {
1970: my ($sheet) = @_;
1971: my $fn=$ENV{'user.name'}.'_'.
1972: $ENV{'user.domain'}.'_spreadsheet_'.$sheet->{'usymb'}.'_'.
1973: $sheet->{'filename'};
1974: $fn=~s/\W/\_/g;
1975: $fn=$tmpdir.$fn.'.tmp';
1976: my $fh;
1977: if ($fh=Apache::File->new('>'.$fn)) {
1978: my %f = &getformulas($sheet);
1979: while( my ($cell,$formula) = each(%f)) {
1980: print $fh &Apache::lonnet::escape($cell)."=".&Apache::lonnet::escape($formula)."\n";
1981: }
1982: }
1983: }
1984:
1985: # ---------------------------------------------------------- Read the temp copy
1986: sub tmpread {
1987: my ($sheet,$nfield,$nform)=@_;
1988: my $fn=$ENV{'user.name'}.'_'.
1989: $ENV{'user.domain'}.'_spreadsheet_'.$sheet->{'usymb'}.'_'.
1990: $sheet->{'filename'};
1991: $fn=~s/\W/\_/g;
1992: $fn=$tmpdir.$fn.'.tmp';
1993: my $fh;
1994: my %fo=();
1995: my $countrows=0;
1996: if ($fh=Apache::File->new($fn)) {
1997: while (<$fh>) {
1998: chomp;
1999: my ($cell,$formula) = split(/=/);
2000: $cell = &Apache::lonnet::unescape($cell);
2001: $formula = &Apache::lonnet::unescape($formula);
2002: $fo{$cell} = $formula;
2003: }
2004: }
2005: # chomp($value);
2006: # $fo{$name}=$value;
2007: # if ($name=~/^A(\d+)$/) {
2008: # if ($1>$countrows) {
2009: # $countrows=$1;
2010: # }
2011: # }
2012: # }
2013: # }
2014: if ($nform eq 'changesheet') {
2015: $fo{'A'.$nfield}=(split(/__&&&\__/,$fo{'A'.$nfield}))[0];
2016: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
2017: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
2018: }
2019: # } elsif ($nfield eq 'insertrow') {
2020: # $countrows++;
2021: # my $newrow=substr('000000'.$countrows,-7);
2022: # if ($nform eq 'top') {
2023: # $fo{'A'.$countrows}='--- '.$newrow;
2024: # } else {
2025: # $fo{'A'.$countrows}='~~~ '.$newrow;
2026: # }
2027: } else {
2028: if ($nfield) { $fo{$nfield}=$nform; }
2029: }
2030: $sheet->{'f'}=\%fo;
2031: &setformulas($sheet);
2032: }
2033:
2034: ##################################################
2035: ##################################################
2036:
2037: =pod
2038:
2039: =item &parmval()
2040:
2041: Determine the value of a parameter.
2042:
2043: Inputs: $what, the parameter needed, $sheet, the safe space
2044:
2045: Returns: The value of a parameter, or '' if none.
2046:
2047: This function cascades through the possible levels searching for a value for
2048: a parameter. The levels are checked in the following order:
2049: user, course (at section level and course level), map, and lonnet::metadata.
2050: This function uses %parmhash, which must be tied prior to calling it.
2051: This function also requires %courseopt and %useropt to be initialized for
2052: this user and course.
2053:
2054: =cut
2055:
2056: ##################################################
2057: ##################################################
2058: sub parmval {
2059: my ($what,$sheet)=@_;
2060: my $symb = $sheet->{'usymb'};
2061: unless ($symb) { return ''; }
2062: #
2063: my $cid = $sheet->{'cid'};
2064: my $csec = $sheet->{'csec'};
2065: my $uname = $sheet->{'uname'};
2066: my $udom = $sheet->{'udom'};
2067: my $result='';
2068: #
2069: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
2070: # Cascading lookup scheme
2071: my $rwhat=$what;
2072: $what =~ s/^parameter\_//;
2073: $what =~ s/\_([^\_]+)$/\.$1/;
2074: #
2075: my $symbparm = $symb.'.'.$what;
2076: my $mapparm = $mapname.'___(all).'.$what;
2077: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
2078: #
2079: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
2080: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
2081: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
2082: #
2083: my $courselevel = $usercourseprefix.'.'.$what;
2084: my $courselevelr = $usercourseprefix.'.'.$symbparm;
2085: my $courselevelm = $usercourseprefix.'.'.$mapparm;
2086: # fourth, check user
2087: if (defined($uname)) {
2088: return $useropt{$courselevelr} if (defined($useropt{$courselevelr}));
2089: return $useropt{$courselevelm} if (defined($useropt{$courselevelm}));
2090: return $useropt{$courselevel} if (defined($useropt{$courselevel}));
2091: }
2092: # third, check course
2093: if (defined($csec)) {
2094: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
2095: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
2096: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
2097: }
2098: #
2099: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
2100: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
2101: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
2102: # second, check map parms
2103: my $thisparm = $parmhash{$symbparm};
2104: return $thisparm if (defined($thisparm));
2105:
2106: # first, check default
2107: $thisparm = &Apache::lonnet::metadata($fn,$rwhat.'.default');
2108: return $thisparm if (defined($thisparm));
2109:
2110: #Cascade Up
2111: my $space=$what;
2112: $space=~s/\.\w+$//;
2113: if ($space ne '0') {
2114: my @parts=split(/_/,$space);
2115: my $id=pop(@parts);
2116: my $part=join('_',@parts);
2117: if ($part eq '') { $part='0'; }
2118: my $newwhat=$rwhat;
2119: $newwhat=~s/\Q$space\E/$part/;
2120: my $partgeneral=&parmval($newwhat,$sheet);
2121: if (defined($partgeneral)) { return $partgeneral; }
2122: }
2123:
2124: #nothing defined
2125: return '';
2126: }
2127:
2128:
2129: ##################################################################
2130: ## Row label formatting routines ##
2131: ##################################################################
2132: sub format_html_rowlabel {
2133: my $sheet = shift;
2134: my $rowlabel = shift;
2135: return '' if ($rowlabel eq '');
2136: my ($type,$labeldata) = split(':',$rowlabel,2);
2137: my $result = '';
2138: if ($type eq 'symb') {
2139: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
2140: $ufn = 'default' if (!defined($ufn) || $ufn eq '');
2141: $ufn = &Apache::lonnet::unescape($ufn);
2142: $symb = &Apache::lonnet::unescape($symb);
2143: $title = &Apache::lonnet::unescape($title);
2144: $result = '<a href="/adm/assesscalc?usymb='.$symb.
2145: '&uname='.$sheet->{'uname'}.'&udom='.$sheet->{'udom'}.
2146: '&ufn='.$ufn.
2147: '&mapid='.$mapid.'&resid='.$resid.'">'.$title.'</a>';
2148: } elsif ($type eq 'student') {
2149: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
2150: if ($fullname =~ /^\s*$/) {
2151: $fullname = $sname.'@'.$sdom;
2152: }
2153: $result ='<a href="/adm/studentcalc?uname='.$sname.
2154: '&udom='.$sdom.'">';
2155: $result.=$section.' '.$id." ".$fullname.'</a>';
2156: } elsif ($type eq 'parameter') {
2157: $result = $labeldata;
2158: } else {
2159: $result = '<b><font size=+1>'.$rowlabel.'</font></b>';
2160: }
2161: return $result;
2162: }
2163:
2164: sub format_csv_rowlabel {
2165: my $sheet = shift;
2166: my $rowlabel = shift;
2167: return '' if ($rowlabel eq '');
2168: my ($type,$labeldata) = split(':',$rowlabel,2);
2169: my $result = '';
2170: if ($type eq 'symb') {
2171: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
2172: $ufn = &Apache::lonnet::unescape($ufn);
2173: $symb = &Apache::lonnet::unescape($symb);
2174: $title = &Apache::lonnet::unescape($title);
2175: $result = $title;
2176: } elsif ($type eq 'student') {
2177: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
2178: $result = join('","',($sname,$sdom,$fullname,$section,$id));
2179: } elsif ($type eq 'parameter') {
2180: $labeldata =~ s/<br>/ /g;
2181: $result = $labeldata;
2182: } else {
2183: $result = $rowlabel;
2184: }
2185: return '"'.$result.'"';
2186: }
2187:
2188: sub format_excel_rowlabel {
2189: my $sheet = shift;
2190: my $rowlabel = shift;
2191: return '' if ($rowlabel eq '');
2192: my ($type,$labeldata) = split(':',$rowlabel,2);
2193: my $result = '';
2194: if ($type eq 'symb') {
2195: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
2196: $ufn = &Apache::lonnet::unescape($ufn);
2197: $symb = &Apache::lonnet::unescape($symb);
2198: $title = &Apache::lonnet::unescape($title);
2199: $result = $title;
2200: } elsif ($type eq 'student') {
2201: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
2202: $section = '' if (! defined($section));
2203: $id = '' if (! defined($id));
2204: my @Data = ($sname,$sdom,$fullname,$section,$id);
2205: $result = \@Data;
2206: } elsif ($type eq 'parameter') {
2207: $labeldata =~ s/<br>/ /g;
2208: $result = $labeldata;
2209: } else {
2210: $result = $rowlabel;
2211: }
2212: return $result;
2213: }
2214:
2215: # ---------------------------------------------- Update rows for course listing
2216: sub updateclasssheet {
2217: my ($sheet) = @_;
2218: my $cnum =$sheet->{'cnum'};
2219: my $cdom =$sheet->{'cdom'};
2220: my $cid =$sheet->{'cid'};
2221: my $chome =$sheet->{'chome'};
2222: #
2223: %Section = ();
2224: #
2225: # Read class list and row labels
2226: my $classlist = &Apache::loncoursedata::get_classlist();
2227: if (! defined($classlist)) {
2228: return 'Could not access course classlist';
2229: }
2230: #
2231: my %currentlist=();
2232: foreach my $student (keys(%$classlist)) {
2233: my ($studentDomain,$studentName,$end,$start,$id,$studentSection,
2234: $fullname,$status) = @{$classlist->{$student}};
2235: $Section{$studentName.':'.$studentDomain} = $studentSection;
2236: if ($ENV{'form.Status'} eq $status || $ENV{'form.Status'} eq 'Any') {
2237: $currentlist{$student}=join(':',('student',$studentName,
2238: $studentDomain,$fullname,
2239: $studentSection,$id));
2240: }
2241: }
2242: #
2243: # Find discrepancies between the course row table and this
2244: #
2245: my %f=&getformulas($sheet);
2246: my $changed=0;
2247: #
2248: $sheet->{'maxrow'}=0;
2249: my %existing=();
2250: #
2251: # Now obsolete rows
2252: foreach (keys(%f)) {
2253: if ($_=~/^A(\d+)/) {
2254: if ($1 > $sheet->{'maxrow'}) {
2255: $sheet->{'maxrow'}= $1;
2256: }
2257: $existing{$f{$_}}=1;
2258: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
2259: ($f{$_}=~/^(~~~|---)/)) {
2260: $f{$_}='!!! Obsolete';
2261: $changed=1;
2262: }
2263: }
2264: }
2265: #
2266: # New and unknown keys
2267: foreach my $student (sort keys(%currentlist)) {
2268: unless ($existing{$student}) {
2269: $changed=1;
2270: $sheet->{'maxrow'}++;
2271: $f{'A'.$sheet->{'maxrow'}}=$student;
2272: }
2273: }
2274: if ($changed) {
2275: $sheet->{'f'} = \%f;
2276: &setformulas($sheet,%f);
2277: }
2278: #
2279: &setrowlabels($sheet,\%currentlist);
2280: }
2281:
2282: # ----------------------------------- Update rows for student and assess sheets
2283: sub get_student_rowlabels {
2284: my ($sheet) = @_;
2285: #
2286: my %course_db;
2287: #
2288: my $stype = $sheet->{'sheettype'};
2289: my $uname = $sheet->{'uname'};
2290: my $udom = $sheet->{'udom'};
2291: #
2292: $sheet->{'rowlabel'} = {};
2293: #
2294: my $identifier =$sheet->{'coursefilename'}.'_'.$stype;
2295: if ($rowlabel_cache{$identifier}) {
2296: %{$sheet->{'rowlabel'}}=split(/___;___/,$rowlabel_cache{$identifier});
2297: } else {
2298: # Get the data and store it in the cache
2299: # Tie hash
2300: tie(%course_db,'GDBM_File',$sheet->{'coursefilename'}.'.db',
2301: &GDBM_READER(),0640);
2302: if (! tied(%course_db)) {
2303: return 'Could not access course data';
2304: }
2305: #
2306: my %assesslist = ();
2307: foreach ('Feedback','Evaluation','Tutoring','Discussion') {
2308: my $symb = '_'.lc($_);
2309: $assesslist{$symb} = join(':',('symb',$symb,0,0,
2310: &Apache::lonnet::escape($_)));
2311: }
2312: #
2313: while (my ($key,$srcf) = each(%course_db)) {
2314: next if ($key !~ /^src_(\d+)\.(\d+)$/);
2315: my $mapid = $1;
2316: my $resid = $2;
2317: my $id = $mapid.'.'.$resid;
2318: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
2319: my $symb=
2320: &Apache::lonnet::declutter($course_db{'map_id_'.$mapid}).
2321: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
2322: $assesslist{$symb} ='symb:'.&Apache::lonnet::escape($symb).':'
2323: .$mapid.':'.$resid.':'.
2324: &Apache::lonnet::escape($course_db{'title_'.$id});
2325: }
2326: }
2327: untie(%course_db);
2328: # Store away the data
2329: $sheet->{'rowlabel'} = \%assesslist;
2330: $rowlabel_cache{$identifier}=join('___;___',%{$sheet->{'rowlabel'}});
2331: }
2332:
2333: }
2334:
2335: sub get_assess_rowlabels {
2336: my ($sheet) = @_;
2337: #
2338: my %course_db;
2339: #
2340: my $stype = $sheet->{'sheettype'};
2341: my $uname = $sheet->{'uname'};
2342: my $udom = $sheet->{'udom'};
2343: my $usymb = $sheet->{'usymb'};
2344: #
2345: $sheet->{'rowlabel'} = {};
2346: my $identifier =$sheet->{'coursefilename'}.'_'.$stype.'_'.$usymb;
2347: #
2348: if ($rowlabel_cache{$identifier}) {
2349: %{$sheet->{'rowlabel'}}=split(/___;___/,$rowlabel_cache{$identifier});
2350: } else {
2351: # Get the data and store it in the cache
2352: # Tie hash
2353: tie(%course_db,'GDBM_File',$sheet->{'coursefilename'}.'.db',
2354: &GDBM_READER(),0640);
2355: if (! tied(%course_db)) {
2356: return 'Could not access course data';
2357: }
2358: #
2359: my %parameter_labels=
2360: ('timestamp' =>
2361: 'parameter:Timestamp of Last Transaction<br>timestamp',
2362: 'subnumber' =>
2363: 'parameter:Number of Submissions<br>subnumber',
2364: 'tutornumber' =>
2365: 'parameter:Number of Tutor Responses<br>tutornumber',
2366: 'totalpoints' =>
2367: 'parameter:Total Points Granted<br>totalpoints');
2368: while (my ($key,$srcf) = each(%course_db)) {
2369: next if ($key !~ /^src_(\d+)\.(\d+)$/);
2370: my $mapid = $1;
2371: my $resid = $2;
2372: my $id = $mapid.'.'.$resid;
2373: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
2374: # Loop through the metadata for this key
2375: my @Metadata = split(/,/,
2376: &Apache::lonnet::metadata($srcf,'keys'));
2377: foreach my $key (@Metadata) {
2378: next if ($key !~ /^(stores|parameter)_/);
2379: my $display=
2380: &Apache::lonnet::metadata($srcf,$key.'.display');
2381: unless ($display) {
2382: $display.=
2383: &Apache::lonnet::metadata($srcf,$key.'.name');
2384: }
2385: $display.='<br>'.$key;
2386: $parameter_labels{$key}='parameter:'.$display;
2387: } # end of foreach
2388: }
2389: }
2390: untie(%course_db);
2391: # Store away the results
2392: $sheet->{'rowlabel'} = \%parameter_labels;
2393: $rowlabel_cache{$identifier}=join('___;___',%{$sheet->{'rowlabel'}});
2394: }
2395:
2396: }
2397:
2398: sub updatestudentassesssheet {
2399: my $sheet = shift;
2400: if ($sheet->{'sheettype'} eq 'studentcalc') {
2401: &get_student_rowlabels($sheet);
2402: } else {
2403: &get_assess_rowlabels($sheet);
2404: }
2405: # Determine if any of the information has changed
2406: my %f=&getformulas($sheet);
2407: my $changed=0;
2408:
2409: $sheet->{'maxrow'} = 0;
2410: my %existing=();
2411: # Now obsolete rows
2412: foreach my $cell (keys(%f)) {
2413: my $formula = $f{$cell};
2414: next if ($cell !~ /^A(\d+)/);
2415: $sheet->{'maxrow'} = $1 if ($1 > $sheet->{'maxrow'});
2416: my ($usy,$ufn)=split(/__&&&\__/,$formula);
2417: $existing{$usy}=1;
2418: unless ((exists($sheet->{'rowlabel'}->{$usy}) &&
2419: (defined($sheet->{'rowlabel'}->{$usy})) || (!$1) ||
2420: ($formula =~ /^(~~~|---)/) )) {
2421: $f{$cell}='!!! Obsolete';
2422: $changed=1;
2423: }
2424: }
2425: # New and unknown keys
2426: foreach (keys(%{$sheet->{'rowlabel'}})) {
2427: unless ($existing{$_}) {
2428: $changed=1;
2429: $sheet->{'maxrow'}++;
2430: $f{'A'.$sheet->{'maxrow'}}=$_;
2431: }
2432: }
2433: if ($changed) {
2434: $sheet->{'f'} = \%f;
2435: &setformulas($sheet);
2436: }
2437: }
2438:
2439: # ------------------------------------------------ Load data for one assessment
2440:
2441: sub loadstudent{
2442: my ($sheet,$r,$c)=@_;
2443: my %constants=();
2444: my %formulas=&getformulas($sheet);
2445: $cachedassess=$sheet->{'uname'}.':'.$sheet->{'udom'};
2446: # Get ALL the student preformance data
2447: my @tmp = &Apache::lonnet::dump($sheet->{'cid'},
2448: $sheet->{'udom'},
2449: $sheet->{'uname'},
2450: undef);
2451: if ($tmp[0] !~ /^error:/) {
2452: %cachedstores = @tmp;
2453: }
2454: undef @tmp;
2455: #
2456: my @assessdata=();
2457: foreach my $cell (keys(%formulas)) {
2458: my $value = $formulas{$cell};
2459: if(defined($c) && ($c->aborted())) {
2460: last;
2461: }
2462: next if ($cell !~ /^A(\d+)/);
2463: my $row=$1;
2464: next if (($value =~ /^[!~-]/) || ($row==0));
2465: my ($usy,$ufn)=split(/__&&&\__/,$value);
2466: @assessdata=&exportsheet($sheet,$sheet->{'uname'},
2467: $sheet->{'udom'},
2468: 'assesscalc',$usy,$ufn,$r);
2469: my $index=0;
2470: foreach my $col ('A','B','C','D','E','F','G','H','I','J','K','L','M',
2471: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
2472: if (defined($assessdata[$index])) {
2473: if ($assessdata[$index]=~/\D/) {
2474: $constants{$col.$row}="'".$assessdata[$index]."'";
2475: } else {
2476: $constants{$col.$row}=$assessdata[$index];
2477: }
2478: $formulas{$col.$row}='import' if ($col ne 'A');
2479: }
2480: $index++;
2481: }
2482: }
2483: $cachedassess='';
2484: undef %cachedstores;
2485: $sheet->{'f'} = \%formulas;
2486: &setformulas($sheet);
2487: &setconstants($sheet,\%constants);
2488: }
2489:
2490: # --------------------------------------------------- Load data for one student
2491: #
2492: sub loadcourse {
2493: my ($sheet,$r,$c)=@_;
2494: #
2495: my %constants=();
2496: my %formulas=&getformulas($sheet);
2497: #
2498: my $total=0;
2499: foreach (keys(%formulas)) {
2500: if ($_=~/^A(\d+)/) {
2501: unless ($formulas{$_}=~/^[\!\~\-]/) { $total++; }
2502: }
2503: }
2504: my $now=0;
2505: my $since=time;
2506: $r->print(<<ENDPOP);
2507: <script>
2508: popwin=open('','popwin','width=400,height=100');
2509: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
2510: '<h3>Spreadsheet Calculation Progress</h3>'+
2511: '<form name=popremain>'+
2512: '<input type=text size=35 name=remaining value=Starting></form>'+
2513: '</body></html>');
2514: popwin.document.close();
2515: </script>
2516: ENDPOP
2517: $r->rflush();
2518: foreach (keys(%formulas)) {
2519: if(defined($c) && ($c->aborted())) {
2520: last;
2521: }
2522: next if ($_!~/^A(\d+)/);
2523: my $row=$1;
2524: next if (($formulas{$_}=~/^[\!\~\-]/) || ($row==0));
2525: my ($sname,$sdom) = split(':',$formulas{$_});
2526: my @studentdata=&exportsheet($sheet,$sname,$sdom,'studentcalc',
2527: undef,undef,$r);
2528: undef %userrdatas;
2529: $now++;
2530: $r->print('<script>popwin.document.popremain.remaining.value="'.
2531: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
2532: ' secs remaining";</script>');
2533: $r->rflush();
2534: #
2535: my $index=0;
2536: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
2537: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
2538: if (defined($studentdata[$index])) {
2539: my $col=$_;
2540: if ($studentdata[$index]=~/\D/) {
2541: $constants{$col.$row}="'".$studentdata[$index]."'";
2542: } else {
2543: $constants{$col.$row}=$studentdata[$index];
2544: }
2545: unless ($col eq 'A') {
2546: $formulas{$col.$row}='import';
2547: }
2548: }
2549: $index++;
2550: }
2551: }
2552: $sheet->{'f'}=\%formulas;
2553: &setformulas($sheet);
2554: &setconstants($sheet,\%constants);
2555: $r->print('<script>popwin.close()</script>');
2556: $r->rflush();
2557: }
2558:
2559: # ------------------------------------------------ Load data for one assessment
2560: #
2561: sub loadassessment {
2562: my ($sheet,$r,$c)=@_;
2563:
2564: my $uhome = $sheet->{'uhome'};
2565: my $uname = $sheet->{'uname'};
2566: my $udom = $sheet->{'udom'};
2567: my $symb = $sheet->{'usymb'};
2568: my $cid = $sheet->{'cid'};
2569: my $cnum = $sheet->{'cnum'};
2570: my $cdom = $sheet->{'cdom'};
2571: my $chome = $sheet->{'chome'};
2572:
2573: my $namespace;
2574: unless ($namespace=$cid) { return ''; }
2575: # Get stored values
2576: my %returnhash=();
2577: if ($cachedassess eq $uname.':'.$udom) {
2578: #
2579: # get data out of the dumped stores
2580: #
2581: my $version=$cachedstores{'version:'.$symb};
2582: my $scope;
2583: for ($scope=1;$scope<=$version;$scope++) {
2584: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2585: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2586: }
2587: }
2588: } else {
2589: #
2590: # restore individual
2591: #
2592: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
2593: for (my $version=1;$version<=$returnhash{'version'};$version++) {
2594: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2595: $returnhash{$_}=$returnhash{$version.':'.$_};
2596: }
2597: }
2598: }
2599: #
2600: # returnhash now has all stores for this resource
2601: # convert all "_" to "." to be able to use libraries, multiparts, etc
2602: #
2603: # This is dumb. It is also necessary :(
2604: my @oldkeys=keys %returnhash;
2605: #
2606: foreach my $name (@oldkeys) {
2607: my $value=$returnhash{$name};
2608: delete $returnhash{$name};
2609: $name=~s/\_/\./g;
2610: $returnhash{$name}=$value;
2611: }
2612: # initialize coursedata and userdata for this user
2613: undef %courseopt;
2614: undef %useropt;
2615:
2616: my $userprefix=$uname.'_'.$udom.'_';
2617:
2618: unless ($uhome eq 'no_host') {
2619: # Get coursedata
2620: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
2621: my %Tmp = &Apache::lonnet::dump('resourcedata',$cdom,$cnum);
2622: $courserdatas{$cid}=\%Tmp;
2623: $courserdatas{$cid.'.last_cache'}=time;
2624: }
2625: while (my ($name,$value) = each(%{$courserdatas{$cid}})) {
2626: $courseopt{$userprefix.$name}=$value;
2627: }
2628: # Get userdata (if present)
2629: unless ((time-$userrdatas{$uname.'@'.$udom.'.last_cache'})<240) {
2630: my %Tmp = &Apache::lonnet::dump('resourcedata',$udom,$uname);
2631: $userrdatas{$cid} = \%Tmp;
2632: # Most of the time the user does not have a 'resourcedata.db'
2633: # file. We need to cache that we got nothing instead of bothering
2634: # with requesting it every time.
2635: $userrdatas{$uname.'@'.$udom.'.last_cache'}=time;
2636: }
2637: while (my ($name,$value) = each(%{$userrdatas{$cid}})) {
2638: $useropt{$userprefix.$name}=$value;
2639: }
2640: }
2641: # now courseopt, useropt initialized for this user and course
2642: # (used by parmval)
2643: #
2644: # Load keys for this assessment only
2645: #
2646: my %thisassess=();
2647: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2648: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2649: $thisassess{$_}=1;
2650: }
2651: #
2652: # Load parameters
2653: #
2654: my %c=();
2655: if (tie(%parmhash,'GDBM_File',
2656: $sheet->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
2657: my %f=&getformulas($sheet);
2658: foreach my $cell (keys(%f)) {
2659: next if ($cell !~ /^A/);
2660: next if ($f{$cell} =~/^[\!\~\-]/);
2661: if ($f{$cell}=~/^parameter/) {
2662: if (defined($thisassess{$f{$cell}})) {
2663: my $val = &parmval($f{$cell},$sheet);
2664: $c{$cell} = $val;
2665: $c{$f{$cell}} = $val;
2666: }
2667: } else {
2668: my $key=$f{$cell};
2669: my $ckey=$key;
2670: $key=~s/^stores\_/resource\./;
2671: $key=~s/\_/\./g;
2672: $c{$cell}=$returnhash{$key};
2673: $c{$ckey}=$returnhash{$key};
2674: }
2675: }
2676: untie(%parmhash);
2677: }
2678: &setconstants($sheet,\%c);
2679: }
2680:
2681: # --------------------------------------------------------- Various form fields
2682:
2683: sub textfield {
2684: my ($title,$name,$value)=@_;
2685: return "\n<p><b>$title:</b><br>".
2686: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2687: }
2688:
2689: sub hiddenfield {
2690: my ($name,$value)=@_;
2691: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2692: }
2693:
2694: sub selectbox {
2695: my ($title,$name,$value,%options)=@_;
2696: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2697: foreach (sort keys(%options)) {
2698: $selout.='<option value="'.$_.'"';
2699: if ($_ eq $value) { $selout.=' selected'; }
2700: $selout.='>'.$options{$_}.'</option>';
2701: }
2702: return $selout.'</select>';
2703: }
2704:
2705: # =============================================== Update information in a sheet
2706: #
2707: # Add new users or assessments, etc.
2708: #
2709:
2710: sub updatesheet {
2711: my ($sheet)=@_;
2712: if ($sheet->{'sheettype'} eq 'classcalc') {
2713: return &updateclasssheet($sheet);
2714: } else {
2715: return &updatestudentassesssheet($sheet);
2716: }
2717: }
2718:
2719: # =================================================== Load the rows for a sheet
2720: #
2721: # Import the data for rows
2722: #
2723:
2724: sub loadrows {
2725: my ($sheet,$r)=@_;
2726: my $c = $r->connection;
2727: my $stype=$sheet->{'sheettype'};
2728: if ($stype eq 'classcalc') {
2729: &loadcourse($sheet,$r,$c);
2730: } elsif ($stype eq 'studentcalc') {
2731: &loadstudent($sheet,$r,$c);
2732: } else {
2733: &loadassessment($sheet,$r,$c);
2734: }
2735: }
2736:
2737: # ======================================================= Forced recalculation?
2738:
2739: sub checkthis {
2740: my ($keyname,$time)=@_;
2741: if (! exists($expiredates{$keyname})) {
2742: return 0;
2743: } else {
2744: return ($time<$expiredates{$keyname});
2745: }
2746: }
2747:
2748: sub forcedrecalc {
2749: my ($uname,$udom,$stype,$usymb)=@_;
2750: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2751: my $time=$oldsheets{$key.'.time'};
2752: if ($ENV{'form.forcerecalc'}) { return 1; }
2753: unless ($time) { return 1; }
2754: if ($stype eq 'assesscalc') {
2755: my $map=(split(/___/,$usymb))[0];
2756: if (&checkthis('::assesscalc:',$time) ||
2757: &checkthis('::assesscalc:'.$map,$time) ||
2758: &checkthis('::assesscalc:'.$usymb,$time) ||
2759: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2760: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2761: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2762: return 1;
2763: }
2764: } else {
2765: if (&checkthis('::studentcalc:',$time) ||
2766: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2767: return 1;
2768: }
2769: }
2770: return 0;
2771: }
2772:
2773: # ============================================================== Export handler
2774: # exportsheet
2775: # returns the export row for a spreadsheet.
2776: #
2777: sub exportsheet {
2778: my ($sheet,$uname,$udom,$stype,$usymb,$fn,$r)=@_;
2779: my $flag = 0;
2780: $uname = $uname || $sheet->{'uname'};
2781: $udom = $udom || $sheet->{'udom'};
2782: $stype = $stype || $sheet->{'sheettype'};
2783: my @exportarr=();
2784: # This handles the assessment sheets for '_feedback', etc
2785: if (defined($usymb) && ($usymb=~/^\_(\w+)/) &&
2786: (!defined($fn) || $fn eq '')) {
2787: $fn='default_'.$1;
2788: }
2789: #
2790: # Check if cached
2791: #
2792: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2793: my $found='';
2794: if ($oldsheets{$key}) {
2795: foreach (split(/___&\___/,$oldsheets{$key})) {
2796: my ($name,$value)=split(/___=___/,$_);
2797: if ($name eq $fn) {
2798: $found=$value;
2799: }
2800: }
2801: }
2802: unless ($found) {
2803: &cachedssheets($sheet,$uname,$udom);
2804: if ($oldsheets{$key}) {
2805: foreach (split(/___&\___/,$oldsheets{$key})) {
2806: my ($name,$value)=split(/___=___/,$_);
2807: if ($name eq $fn) {
2808: $found=$value;
2809: }
2810: }
2811: }
2812: }
2813: #
2814: # Check if still valid
2815: #
2816: if ($found) {
2817: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2818: $found='';
2819: }
2820: }
2821: if ($found) {
2822: #
2823: # Return what was cached
2824: #
2825: @exportarr=split(/___;___/,$found);
2826: return @exportarr;
2827: }
2828: #
2829: # Not cached
2830: #
2831: my ($newsheet)=&makenewsheet($uname,$udom,$stype,$usymb);
2832: &readsheet($newsheet,$fn);
2833: &updatesheet($newsheet);
2834: &loadrows($newsheet,$r);
2835: &calcsheet($newsheet);
2836: @exportarr=&exportdata($newsheet);
2837: ##
2838: ## Store now
2839: ##
2840: #
2841: # load in the old value
2842: #
2843: my %currentlystored=();
2844: if ($stype eq 'studentcalc') {
2845: my @tmp = &Apache::lonnet::get('nohist_calculatedsheets',
2846: [$key],
2847: $sheet->{'cdom'},$sheet->{'cnum'});
2848: if ($tmp[0]!~/^error/) {
2849: # We only got one key, so we will access it directly.
2850: foreach (split('___&___',$tmp[1])) {
2851: my ($key,$value) = split('___=___',$_);
2852: $key = '' if (! defined($key));
2853: $currentlystored{$key} = $value;
2854: }
2855: }
2856: } else {
2857: my @tmp = &Apache::lonnet::get('nohist_calculatedsheets_'.
2858: $sheet->{'cid'},[$key],
2859: $sheet->{'udom'},$sheet->{'uname'});
2860: if ($tmp[0]!~/^error/) {
2861: # We only got one key, so we will access it directly.
2862: foreach (split('___&___',$tmp[1])) {
2863: my ($key,$value) = split('___=___',$_);
2864: $key = '' if (! defined($key));
2865: $currentlystored{$key} = $value;
2866: }
2867: }
2868: }
2869: #
2870: # Add the new line
2871: #
2872: $currentlystored{$fn}=join('___;___',@exportarr);
2873: #
2874: # Stick everything back together
2875: #
2876: my $newstore='';
2877: foreach (keys(%currentlystored)) {
2878: if ($newstore) { $newstore.='___&___'; }
2879: $newstore.=$_.'___=___'.$currentlystored{$_};
2880: }
2881: my $now=time;
2882: #
2883: # Store away the new value
2884: #
2885: my $timekey = $key.'.time';
2886: if ($stype eq 'studentcalc') {
2887: my $result = &Apache::lonnet::put('nohist_calculatedsheets',
2888: { $key => $newstore,
2889: $timekey => $now },
2890: $sheet->{'cdom'},
2891: $sheet->{'cnum'});
2892: } else {
2893: my $result = &Apache::lonnet::put('nohist_calculatedsheets_'.$sheet->{'cid'},
2894: { $key => $newstore,
2895: $timekey => $now },
2896: $sheet->{'udom'},
2897: $sheet->{'uname'});
2898: }
2899: return @exportarr;
2900: }
2901:
2902: # ============================================================ Expiration Dates
2903: #
2904: # Load previously cached student spreadsheets for this course
2905: #
2906: sub load_spreadsheet_expirationdates {
2907: undef %expiredates;
2908: my $cid=$ENV{'request.course.id'};
2909: my @tmp = &Apache::lonnet::dump('nohist_expirationdates',
2910: $ENV{'course.'.$cid.'.domain'},
2911: $ENV{'course.'.$cid.'.num'});
2912: if (lc($tmp[0]) !~ /^error/){
2913: %expiredates = @tmp;
2914: }
2915: }
2916:
2917: # ===================================================== Calculated sheets cache
2918: #
2919: # Load previously cached student spreadsheets for this course
2920: #
2921:
2922: sub cachedcsheets {
2923: my $cid=$ENV{'request.course.id'};
2924: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
2925: $ENV{'course.'.$cid.'.domain'},
2926: $ENV{'course.'.$cid.'.num'});
2927: if ($tmp[0] !~ /^error/) {
2928: my %StupidTempHash = @tmp;
2929: while (my ($key,$value) = each %StupidTempHash) {
2930: $oldsheets{$key} = $value;
2931: }
2932: }
2933: }
2934:
2935: # ===================================================== Calculated sheets cache
2936: #
2937: # Load previously cached assessment spreadsheets for this student
2938: #
2939:
2940: sub cachedssheets {
2941: my ($sheet,$uname,$udom) = @_;
2942: $uname = $uname || $sheet->{'uname'};
2943: $udom = $udom || $sheet->{'udom'};
2944: if (! $loadedcaches{$uname.'_'.$udom}) {
2945: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
2946: $ENV{'request.course.id'},
2947: $sheet->{'udom'},
2948: $sheet->{'uname'});
2949: if ($tmp[0] !~ /^error/) {
2950: my %TempHash = @tmp;
2951: my $count = 0;
2952: while (my ($key,$value) = each %TempHash) {
2953: $oldsheets{$key} = $value;
2954: $count++;
2955: }
2956: $loadedcaches{$sheet->{'uname'}.'_'.$sheet->{'udom'}}=1;
2957: }
2958: }
2959:
2960: }
2961:
2962: # ===================================================== Calculated sheets cache
2963: #
2964: # Load previously cached assessment spreadsheets for this student
2965: #
2966:
2967: # ================================================================ Main handler
2968: #
2969: # Interactive call to screen
2970: #
2971: #
2972: sub handler {
2973: my $r=shift;
2974:
2975: my ($sheettype) = ($r->uri=~/\/(\w+)$/);
2976:
2977: if (! exists($ENV{'form.Status'})) {
2978: $ENV{'form.Status'} = 'Active';
2979: }
2980: if ( ! exists($ENV{'form.output'}) ||
2981: ($sheettype ne 'classcalc' &&
2982: lc($ENV{'form.output'}) eq 'recursive excel')) {
2983: $ENV{'form.output'} = 'HTML';
2984: }
2985: #
2986: # Overload checking
2987: #
2988: # Check this server
2989: my $loaderror=&Apache::lonnet::overloaderror($r);
2990: if ($loaderror) { return $loaderror; }
2991: # Check the course homeserver
2992: $loaderror= &Apache::lonnet::overloaderror($r,
2993: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
2994: if ($loaderror) { return $loaderror; }
2995: #
2996: # HTML Header
2997: #
2998: if ($r->header_only) {
2999: $r->content_type('text/html');
3000: $r->send_http_header;
3001: return OK;
3002: }
3003: #
3004: # Global directory configs
3005: #
3006: $includedir = $r->dir_config('lonIncludes');
3007: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
3008: #
3009: # Roles Checking
3010: #
3011: # Needs to be in a course
3012: if (! $ENV{'request.course.fn'}) {
3013: # Not in a course, or not allowed to modify parms
3014: $ENV{'user.error.msg'}=
3015: $r->uri.":opa:0:0:Cannot modify spreadsheet";
3016: return HTTP_NOT_ACCEPTABLE;
3017: }
3018: #
3019: # Get query string for limited number of parameters
3020: #
3021: &Apache::loncommon::get_unprocessed_cgi
3022: ($ENV{'QUERY_STRING'},['uname','udom','usymb','ufn','mapid','resid']);
3023: #
3024: # Deal with restricted student permissions
3025: #
3026: if ($ENV{'request.role'} =~ /^st\./) {
3027: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
3028: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
3029: }
3030: #
3031: # Look for special assessment spreadsheets - '_feedback', etc.
3032: #
3033: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'} ||
3034: $ENV{'form.ufn'} eq '' ||
3035: $ENV{'form.ufn'} eq 'default')) {
3036: $ENV{'form.ufn'}='default_'.$1;
3037: }
3038: # if (!$ENV{'form.ufn'} || $ENV{'form.ufn'} eq 'default') {
3039: # $ENV{'form.ufn'}='course_default_'.$sheettype;
3040: # }
3041: #
3042: # Interactive loading of specific sheet?
3043: #
3044: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
3045: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
3046: }
3047: #
3048: # Determine the user name and domain for the sheet.
3049: my $aname;
3050: my $adom;
3051: unless ($ENV{'form.uname'}) {
3052: $aname=$ENV{'user.name'};
3053: $adom=$ENV{'user.domain'};
3054: } else {
3055: $aname=$ENV{'form.uname'};
3056: $adom=$ENV{'form.udom'};
3057: }
3058: #
3059: # Open page, try to prevent browser cache.
3060: #
3061: $r->content_type('text/html');
3062: $r->header_out('Cache-control','no-cache');
3063: $r->header_out('Pragma','no-cache');
3064: $r->send_http_header;
3065: #
3066: # Header....
3067: #
3068: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
3069: my $nothing = "''";
3070: if ($ENV{'browser.type'} eq 'explorer') {
3071: $nothing = "'javascript:void(0);'";
3072: }
3073:
3074: if ($ENV{'request.role'} !~ /^st\./) {
3075: $r->print(<<ENDSCRIPT);
3076: <script language="JavaScript">
3077:
3078: var editwin;
3079:
3080: function celledit(cellname,cellformula) {
3081: var edit_text = '';
3082: // cellformula may contain less-than and greater-than symbols, so
3083: // we need to escape them?
3084: edit_text +='<html><head><title>Cell Edit Window</title></head><body>';
3085: edit_text += '<form name="editwinform">';
3086: edit_text += '<center><h3>Cell '+cellname+'</h3>';
3087: edit_text += '<textarea name="newformula" cols="40" rows="6"';
3088: edit_text += ' wrap="off" >'+cellformula+'</textarea>';
3089: edit_text += '</br>';
3090: edit_text += '<input type="button" name="accept" value="Accept"';
3091: edit_text += ' onClick=\\\'javascript:';
3092: edit_text += 'opener.document.sheet.unewfield.value=';
3093: edit_text += '"'+cellname+'";';
3094: edit_text += 'opener.document.sheet.unewformula.value=';
3095: edit_text += 'document.editwinform.newformula.value;';
3096: edit_text += 'opener.document.sheet.submit();';
3097: edit_text += 'self.close()\\\' />';
3098: edit_text += ' ';
3099: edit_text += '<input type="button" name="abort" ';
3100: edit_text += 'value="Discard Changes"';
3101: edit_text += ' onClick="javascript:self.close()" />';
3102: edit_text += '</center></body></html>';
3103:
3104: if (editwin != null && !(editwin.closed) ) {
3105: editwin.close();
3106: }
3107:
3108: editwin = window.open($nothing,'CellEditWin','height=200,width=350,scrollbars=no,resizeable=yes,alwaysRaised=yes,dependent=yes',true);
3109: editwin.document.write(edit_text);
3110: }
3111:
3112: function changesheet(cn) {
3113: document.sheet.unewfield.value=cn;
3114: document.sheet.unewformula.value='changesheet';
3115: document.sheet.submit();
3116: }
3117:
3118: function insertrow(cn) {
3119: document.sheet.unewfield.value='insertrow';
3120: document.sheet.unewformula.value=cn;
3121: document.sheet.submit();
3122: }
3123:
3124: </script>
3125: ENDSCRIPT
3126: }
3127: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
3128: '<form action="'.$r->uri.'" name="sheet" method="post">');
3129: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
3130: &hiddenfield('udom',$ENV{'form.udom'}).
3131: &hiddenfield('usymb',$ENV{'form.usymb'}).
3132: &hiddenfield('unewfield','').
3133: &hiddenfield('unewformula',''));
3134: $r->rflush();
3135: #
3136: # Full recalc?
3137: #
3138: if ($ENV{'form.forcerecalc'}) {
3139: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
3140: undef %spreadsheets;
3141: undef %courserdatas;
3142: undef %userrdatas;
3143: undef %defaultsheets;
3144: undef %rowlabel_cache;
3145: }
3146: # Read new sheet or modified worksheet
3147: my ($sheet)=&makenewsheet($aname,$adom,$sheettype,$ENV{'form.usymb'});
3148: #
3149: # Check user permissions
3150: if (($sheet->{'sheettype'} eq 'classcalc' ) ||
3151: ($sheet->{'uname'} ne $ENV{'user.name'} ) ||
3152: ($sheet->{'udom'} ne $ENV{'user.domain'})) {
3153: unless (&Apache::lonnet::allowed('vgr',$sheet->{'cid'})) {
3154: $r->print('<h1>Access Permission Denied</h1>'.
3155: '</form></body></html>');
3156: return OK;
3157: }
3158: }
3159: # Print out user information
3160: $r->print('<h2>'.$sheet->{'coursedesc'}.'</h2>');
3161: if ($sheet->{'sheettype'} ne 'classcalc') {
3162: $r->print('<h2>'.&gettitle($sheet).'</h2><p>');
3163: }
3164: if ($sheet->{'sheettype'} eq 'assesscalc') {
3165: $r->print('<b>User:</b> '.$sheet->{'uname'}.
3166: '<br /><b>Domain:</b> '.$sheet->{'udom'}.'<br />');
3167: }
3168: if ($sheet->{'sheettype'} eq 'studentcalc' ||
3169: $sheet->{'sheettype'} eq 'assesscalc') {
3170: $r->print('<b>Section/Group:</b>'.$sheet->{'csec'}.'</p>');
3171: }
3172: #
3173: # If a new formula had been entered, go from work copy
3174: if ($ENV{'form.unewfield'}) {
3175: $r->print('<h2>Modified Workcopy</h2>');
3176: #$ENV{'form.unewformula'}=~s/\'/\"/g;
3177: $r->print('<p>Cell '.$ENV{'form.unewfield'}.' = <pre>');
3178: $r->print(&HTML::Entities::encode($ENV{'form.unewformula'}).
3179: '</pre></p>');
3180: $sheet->{'filename'} = $ENV{'form.ufn'};
3181: &tmpread($sheet,$ENV{'form.unewfield'},$ENV{'form.unewformula'});
3182: } elsif ($ENV{'form.saveas'}) {
3183: $sheet->{'filename'} = $ENV{'form.ufn'};
3184: &tmpread($sheet);
3185: } else {
3186: &readsheet($sheet,$ENV{'form.ufn'});
3187: }
3188: # Additional options
3189: if ($sheet->{'sheettype'} eq 'assesscalc') {
3190: $r->print('<p><font size=+2>'.
3191: '<a href="/adm/studentcalc?'.
3192: 'uname='.$sheet->{'uname'}.
3193: '&udom='.$sheet->{'udom'}.'">'.
3194: 'Level up: Student Sheet</a></font></p>');
3195: }
3196: if (($sheet->{'sheettype'} eq 'studentcalc') &&
3197: (&Apache::lonnet::allowed('vgr',$sheet->{'cid'}))) {
3198: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
3199: 'Level up: Course Sheet</a></font></p>');
3200: }
3201: # Recalc button
3202: $r->print('<br />'.
3203: '<input type="submit" name="forcerecalc" '.
3204: 'value="Completely Recalculate Sheet"></p>');
3205: # Save dialog
3206: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
3207: my $fname=$ENV{'form.ufn'};
3208: $fname=~s/\_[^\_]+$//;
3209: if ($fname eq 'default') { $fname='course_default'; }
3210: $r->print('<input type=submit name=saveas value="Save as ...">'.
3211: '<input type=text size=20 name=newfn value="'.$fname.'">'.
3212: 'make default: <input type=checkbox name="makedefufn"><p>');
3213: }
3214: $r->print(&hiddenfield('ufn',$sheet->{'filename'}));
3215: # Load dialog
3216: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
3217: $r->print('<p><input type=submit name=load value="Load ...">'.
3218: '<select name="loadthissheet">'.
3219: '<option name="default">Default</option>');
3220: foreach (&othersheets($sheet)) {
3221: $r->print('<option name="'.$_.'"');
3222: if ($ENV{'form.ufn'} eq $_) {
3223: $r->print(' selected');
3224: }
3225: $r->print('>'.$_.'</option>');
3226: }
3227: $r->print('</select><p>');
3228: if ($sheet->{'sheettype'} eq 'studentcalc') {
3229: &setothersheets($sheet,
3230: &othersheets($sheet,'assesscalc'));
3231: }
3232: }
3233: #
3234: # Set up caching mechanisms
3235: #
3236: &load_spreadsheet_expirationdates();
3237: # Clear out old caches if we have not seen this class before.
3238: if (exists($oldsheets{'course'}) &&
3239: $oldsheets{'course'} ne $sheet->{'cid'}) {
3240: undef %oldsheets;
3241: undef %loadedcaches;
3242: undef %Section;
3243: }
3244: $oldsheets{'course'} = $sheet->{'cid'};
3245: #
3246: if ($sheet->{'sheettype'} eq 'classcalc') {
3247: $r->print("Loading previously calculated student sheets ...\n");
3248: $r->rflush();
3249: &cachedcsheets();
3250: } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
3251: $r->print("Loading previously calculated assessment sheets ...\n");
3252: $r->rflush();
3253: &cachedssheets($sheet);
3254: }
3255: # Update sheet, load rows
3256: $r->print("Loaded sheet(s), updating rows ...<br>\n");
3257: $r->rflush();
3258: #
3259: &updatesheet($sheet);
3260: $r->print("Updated rows, loading row data ...\n");
3261: $r->rflush();
3262: #
3263: &loadrows($sheet,$r);
3264: $r->print("Loaded row data, calculating sheet ...<br>\n");
3265: $r->rflush();
3266: #
3267: my $calcoutput=&calcsheet($sheet);
3268: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
3269: # See if something to save
3270: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
3271: my $fname='';
3272: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
3273: $fname=~s/\W/\_/g;
3274: if ($fname eq 'default') { $fname='course_default'; }
3275: $fname.='_'.$sheet->{'sheettype'};
3276: $sheet->{'filename'} = $fname;
3277: $ENV{'form.ufn'}=$fname;
3278: $r->print('<p>Saving spreadsheet: '.
3279: &writesheet($sheet,$ENV{'form.makedefufn'}).
3280: '<p>');
3281: }
3282: }
3283: #
3284: # Write the modified worksheet
3285: $r->print('<b>Current sheet:</b> '.$sheet->{'filename'}.'</p>');
3286: &tmpwrite($sheet);
3287: if ($sheet->{'sheettype'} eq 'assesscalc') {
3288: $r->print('<p>Show rows with empty A column: ');
3289: } else {
3290: $r->print('<p>Show empty rows: ');
3291: }
3292: #
3293: $r->print(&hiddenfield('userselhidden','true').
3294: '<input type="checkbox" name="showall" onClick="submit()"');
3295: #
3296: if ($ENV{'form.showall'}) {
3297: $r->print(' checked');
3298: } else {
3299: unless ($ENV{'form.userselhidden'}) {
3300: unless
3301: ($ENV{'course.'.$sheet->{'cid'}.'.hideemptyrows'} eq 'yes') {
3302: $r->print(' checked');
3303: $ENV{'form.showall'}=1;
3304: }
3305: }
3306: }
3307: $r->print('>');
3308: #
3309: # output format select box
3310: $r->print(' Output as <select name="output" size="1" onChange="submit()">'.
3311: "\n");
3312: foreach my $mode (qw/HTML CSV Excel/) {
3313: $r->print('<option value="'.$mode.'"');
3314: if ($ENV{'form.output'} eq $mode) {
3315: $r->print(' selected ');
3316: }
3317: $r->print('>'.$mode.'</option>'."\n");
3318: }
3319: #
3320: # Mulit-sheet excel takes too long and does not work at all for large
3321: # classes. Future inclusion of this option may be possible with the
3322: # Spreadsheet::WriteExcel::Big and speed improvements.
3323: #
3324: # if ($sheet->{'sheettype'} eq 'classcalc') {
3325: # $r->print('<option value="recursive excel"');
3326: # if ($ENV{'form.output'} eq 'recursive excel') {
3327: # $r->print(' selected ');
3328: # }
3329: # $r->print(">Multi-Sheet Excel</option>\n");
3330: # }
3331: $r->print("</select>\n");
3332: #
3333: if ($sheet->{'sheettype'} eq 'classcalc') {
3334: $r->print(' Student Status: '.
3335: &Apache::lonhtmlcommon::StatusOptions
3336: ($ENV{'form.Status'},'sheet'));
3337: }
3338: #
3339: # Buttons to insert rows
3340: # $r->print(<<ENDINSERTBUTTONS);
3341: #<br>
3342: #<input type='button' onClick='insertrow("top");'
3343: #value='Insert Row Top'>
3344: #<input type='button' onClick='insertrow("bottom");'
3345: #value='Insert Row Bottom'><br>
3346: #ENDINSERTBUTTONS
3347: # Print out sheet
3348: &outsheet($sheet,$r);
3349: $r->print('</form></body></html>');
3350: # Done
3351: return OK;
3352: }
3353:
3354: 1;
3355: __END__
3356:
3357:
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