1: #
2: # $Id: lonspreadsheet.pm,v 1.82 2002/04/09 18:41:11 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # 11/11,11/15,11/27,12/04,12/05,12/06,12/07,
30: # 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30,
31: # 01/01/01,02/01,03/01,19/01,20/01,22/01,
32: # 03/05,03/08,03/10,03/12,03/13,03/15,03/17,
33: # 03/19,03/20,03/21,03/27,04/05,04/09,
34: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17,
35: # 10/16,10/17,10/20,11/05,11/28,12/27 Gerd Kortemeyer
36: # 01/14/02 Matthew
37: # 02/04/02 Matthew
38:
39: # POD required stuff:
40:
41: =head1 NAME
42:
43: lonspreadsheet
44:
45: =head1 SYNOPSIS
46:
47: Spreadsheet interface to internal LON-CAPA data
48:
49: =head1 DESCRIPTION
50:
51: Lonspreadsheet provides course coordinators the ability to manage their
52: students grades online. The students are able to view their own grades, but
53: not the grades of their peers. The spreadsheet is highly customizable,
54: offering the ability to use Perl code to manipulate data, as well as many
55: built-in functions.
56:
57:
58: =head2 Functions available to user of lonspreadsheet
59:
60: =over 4
61:
62: =cut
63:
64: package Apache::lonspreadsheet;
65:
66: use strict;
67: use Safe;
68: use Safe::Hole;
69: use Opcode;
70: use Apache::lonnet;
71: use Apache::Constants qw(:common :http);
72: use GDBM_File;
73: use HTML::TokeParser;
74:
75: #
76: # Caches for previously calculated spreadsheets
77: #
78:
79: my %oldsheets;
80: my %loadedcaches;
81: my %expiredates;
82:
83: #
84: # Cache for stores of an individual user
85: #
86:
87: my $cachedassess;
88: my %cachedstores;
89:
90: #
91: # These cache hashes need to be independent of user, resource and course
92: # (user and course can/should be in the keys)
93: #
94:
95: my %spreadsheets;
96: my %courserdatas;
97: my %userrdatas;
98: my %defaultsheets;
99: my %updatedata;
100:
101: #
102: # These global hashes are dependent on user, course and resource,
103: # and need to be initialized every time when a sheet is calculated
104: #
105: my %courseopt;
106: my %useropt;
107: my %parmhash;
108:
109: # Stuff that only the screen handler can know
110:
111: my $includedir;
112: my $tmpdir;
113:
114: # =============================================================================
115: # ===================================== Implements an instance of a spreadsheet
116:
117: sub initsheet {
118: my $safeeval = new Safe(shift);
119: my $safehole = new Safe::Hole;
120: $safeeval->permit("entereval");
121: $safeeval->permit(":base_math");
122: $safeeval->permit("sort");
123: $safeeval->deny(":base_io");
124: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
125: my $code=<<'ENDDEFS';
126: # ---------------------------------------------------- Inside of the safe space
127:
128: #
129: # f: formulas
130: # t: intermediate format (variable references expanded)
131: # v: output values
132: # c: preloaded constants (A-column)
133: # rl: row label
134: # os: other spreadsheets (for student spreadsheet only)
135:
136: undef %v;
137: undef %t;
138: undef %f;
139: undef %c;
140: undef %rl;
141: undef @os;
142:
143: $maxrow=0;
144: $sheettype='';
145:
146: # filename/reference of the sheet
147:
148: $filename='';
149:
150: # user data
151: $uname='';
152: $uhome='';
153: $udom='';
154:
155: # course data
156:
157: $csec='';
158: $chome='';
159: $cnum='';
160: $cdom='';
161: $cid='';
162: $cfn='';
163:
164: # symb
165:
166: $usymb='';
167:
168: sub mask {
169: my ($lower,$upper)=@_;
170:
171: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
172: my $la=$1;
173: my $ld=$2;
174:
175: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
176: my $ua=$1;
177: my $ud=$2;
178: my $alpha='';
179: my $num='';
180:
181: if (($la eq '*') || ($ua eq '*')) {
182: $alpha='[A-Za-z]';
183: } else {
184: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
185: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
186: $alpha='['.$la.'-'.$ua.']';
187: } else {
188: $alpha='['.$la.'-Za-'.$ua.']';
189: }
190: }
191:
192: if (($ld eq '*') || ($ud eq '*')) {
193: $num='\d+';
194: } else {
195: if (length($ld)!=length($ud)) {
196: $num.='(';
197: foreach ($ld=~m/\d/g) {
198: $num.='['.$_.'-9]';
199: }
200: if (length($ud)-length($ld)>1) {
201: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
202: }
203: $num.='|';
204: foreach ($ud=~m/\d/g) {
205: $num.='[0-'.$_.']';
206: }
207: $num.=')';
208: } else {
209: my @lda=($ld=~m/\d/g);
210: my @uda=($ud=~m/\d/g);
211: my $i; $j=0; $notdone=1;
212: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
213: if ($lda[$i]==$uda[$i]) {
214: $num.=$lda[$i];
215: $j=$i;
216: } else {
217: $notdone=0;
218: }
219: }
220: if ($j<$#lda-1) {
221: $num.='('.$lda[$j+1];
222: for ($i=$j+2;$i<=$#lda;$i++) {
223: $num.='['.$lda[$i].'-9]';
224: }
225: if ($uda[$j+1]-$lda[$j+1]>1) {
226: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
227: ($#lda-$j-1).'}';
228: }
229: $num.='|'.$uda[$j+1];
230: for ($i=$j+2;$i<=$#uda;$i++) {
231: $num.='[0-'.$uda[$i].']';
232: }
233: $num.=')';
234: } else {
235: if ($lda[$#lda]!=$uda[$#uda]) {
236: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
237: }
238: }
239: }
240: }
241: return '^'.$alpha.$num."\$";
242: }
243:
244: #-------------------------------------------------------
245:
246: =item UWCALC(hashname,modules,units,date)
247:
248: returns the proportion of the module
249: weights not previously completed by the student.
250:
251: =over 4
252:
253: =item hashname
254:
255: name of the hash the module dates have been inserted into
256:
257: =item modules
258:
259: reference to a cell which contains a comma deliminated list of modules
260: covered by the assignment.
261:
262: =item units
263:
264: reference to a cell which contains a comma deliminated list of module
265: weights with respect to the assignment
266:
267: =item date
268:
269: reference to a cell which contains the date the assignment was completed.
270:
271: =back
272:
273: =cut
274:
275: #-------------------------------------------------------
276: sub UWCALC {
277: my ($hashname,$modules,$units,$date) = @_;
278: my @Modules = split(/,/,$modules);
279: my @Units = split(/,/,$units);
280: my $total_weight;
281: foreach (@Units) {
282: $total_weight += $_;
283: }
284: my $usum=0;
285: for (my $i=0; $i<=$#Modules; $i++) {
286: if (&HASH($hashname,$Modules[$i]) eq $date) {
287: $usum += $Units[$i];
288: }
289: }
290: return $usum/$total_weight;
291: }
292:
293: #-------------------------------------------------------
294:
295: =item CDLSUM(list)
296:
297: returns the sum of the elements in a cell which contains
298: a Comma Deliminate List of numerical values.
299: 'list' is a reference to a cell which contains a comma deliminated list.
300:
301: =cut
302:
303: #-------------------------------------------------------
304: sub CDLSUM {
305: my ($list)=@_;
306: my $sum;
307: foreach (split/,/,$list) {
308: $sum += $_;
309: }
310: return $sum;
311: }
312:
313: #-------------------------------------------------------
314:
315: =item CDLITEM(list,index)
316:
317: returns the item at 'index' in a Comma Deliminated List.
318:
319: =over 4
320:
321: =item list
322:
323: reference to a cell which contains a comma deliminated list.
324:
325: =item index
326:
327: the Perl index of the item requested (first element in list has
328: an index of 0)
329:
330: =back
331:
332: =cut
333:
334: #-------------------------------------------------------
335: sub CDLITEM {
336: my ($list,$index)=@_;
337: my @Temp = split/,/,$list;
338: return $Temp[$index];
339: }
340:
341: #-------------------------------------------------------
342:
343: =item CDLHASH(name,key,value)
344:
345: loads a comma deliminated list of keys into
346: the hash 'name', all with a value of 'value'.
347:
348: =over 4
349:
350: =item name
351:
352: name of the hash.
353:
354: =item key
355:
356: (a pointer to) a comma deliminated list of keys.
357:
358: =item value
359:
360: a single value to be entered for each key.
361:
362: =back
363:
364: =cut
365:
366: #-------------------------------------------------------
367: sub CDLHASH {
368: my ($name,$key,$value)=@_;
369: my @Keys;
370: my @Values;
371: # Check to see if we have multiple $key values
372: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
373: my $keymask = &mask($key);
374: # Assume the keys are addresses
375: my @Temp = grep /$keymask/,keys(%v);
376: @Keys = $v{@Temp};
377: } else {
378: $Keys[0]= $key;
379: }
380: my @Temp;
381: foreach $key (@Keys) {
382: @Temp = (@Temp, split/,/,$key);
383: }
384: @Keys = @Temp;
385: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
386: my $valmask = &mask($value);
387: my @Temp = grep /$valmask/,keys(%v);
388: @Values =$v{@Temp};
389: } else {
390: $Values[0]= $value;
391: }
392: $value = $Values[0];
393: # Add values to hash
394: for (my $i = 0; $i<=$#Keys; $i++) {
395: my $key = $Keys[$i];
396: if (! exists ($hashes{$name}->{$key})) {
397: $hashes{$name}->{$key}->[0]=$value;
398: } else {
399: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
400: $hashes{$name}->{$key} = \@Temp;
401: }
402: }
403: return "hash '$name' updated";
404: }
405:
406: #-------------------------------------------------------
407:
408: =item GETHASH(name,key,index)
409:
410: returns the element in hash 'name'
411: reference by the key 'key', at index 'index' in the values list.
412:
413: =cut
414:
415: #-------------------------------------------------------
416: sub GETHASH {
417: my ($name,$key,$index)=@_;
418: if (! defined($index)) {
419: $index = 0;
420: }
421: if ($key =~ /^[A-z]\d+$/) {
422: $key = $v{$key};
423: }
424: return $hashes{$name}->{$key}->[$index];
425: }
426:
427: #-------------------------------------------------------
428:
429: =item CLEARHASH(name)
430:
431: clears all the values from the hash 'name'
432:
433: =item CLEARHASH(name,key)
434:
435: clears all the values from the hash 'name' associated with the given key.
436:
437: =cut
438:
439: #-------------------------------------------------------
440: sub CLEARHASH {
441: my ($name,$key)=@_;
442: if (defined($key)) {
443: if (exists($hashes{$name}->{$key})) {
444: $hashes{$name}->{$key}=undef;
445: return "hash '$name' key '$key' cleared";
446: }
447: } else {
448: if (exists($hashes{$name})) {
449: $hashes{$name}=undef;
450: return "hash '$name' cleared";
451: }
452: }
453: return "Error in clearing hash";
454: }
455:
456: #-------------------------------------------------------
457:
458: =item HASH(name,key,value)
459:
460: loads values into an internal hash. If a key
461: already has a value associated with it, the values are sorted numerically.
462:
463: =item HASH(name,key)
464:
465: returns the 0th value in the hash 'name' associated with 'key'.
466:
467: =cut
468:
469: #-------------------------------------------------------
470: sub HASH {
471: my ($name,$key,$value)=@_;
472: my @Keys;
473: undef @Keys;
474: my @Values;
475: # Check to see if we have multiple $key values
476: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
477: my $keymask = &mask($key);
478: # Assume the keys are addresses
479: my @Temp = grep /$keymask/,keys(%v);
480: @Keys = $v{@Temp};
481: } else {
482: $Keys[0]= $key;
483: }
484: # If $value is empty, return the first value associated
485: # with the first key.
486: if (! $value) {
487: return $hashes{$name}->{$Keys[0]}->[0];
488: }
489: # Check to see if we have multiple $value(s)
490: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
491: my $valmask = &mask($value);
492: my @Temp = grep /$valmask/,keys(%v);
493: @Values =$v{@Temp};
494: } else {
495: $Values[0]= $value;
496: }
497: # Add values to hash
498: for (my $i = 0; $i<=$#Keys; $i++) {
499: my $key = $Keys[$i];
500: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
501: if (! exists ($hashes{$name}->{$key})) {
502: $hashes{$name}->{$key}->[0]=$value;
503: } else {
504: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
505: $hashes{$name}->{$key} = \@Temp;
506: }
507: }
508: return $Values[-1];
509: }
510:
511: sub NUM {
512: my $mask=mask(@_);
513: my $num= $#{@{grep(/$mask/,keys(%v))}}+1;
514: return $num;
515: }
516:
517: sub BIN {
518: my ($low,$high,$lower,$upper)=@_;
519: my $mask=mask($lower,$upper);
520: my $num=0;
521: foreach (grep /$mask/,keys(%v)) {
522: if (($v{$_}>=$low) && ($v{$_}<=$high)) {
523: $num++;
524: }
525: }
526: return $num;
527: }
528:
529:
530: sub SUM {
531: my $mask=mask(@_);
532: my $sum=0;
533: foreach (grep /$mask/,keys(%v)) {
534: $sum+=$v{$_};
535: }
536: return $sum;
537: }
538:
539: sub MEAN {
540: my $mask=mask(@_);
541: my $sum=0; my $num=0;
542: foreach (grep /$mask/,keys(%v)) {
543: $sum+=$v{$_};
544: $num++;
545: }
546: if ($num) {
547: return $sum/$num;
548: } else {
549: return undef;
550: }
551: }
552:
553: sub STDDEV {
554: my $mask=mask(@_);
555: my $sum=0; my $num=0;
556: foreach (grep /$mask/,keys(%v)) {
557: $sum+=$v{$_};
558: $num++;
559: }
560: unless ($num>1) { return undef; }
561: my $mean=$sum/$num;
562: $sum=0;
563: foreach (grep /$mask/,keys(%v)) {
564: $sum+=($v{$_}-$mean)**2;
565: }
566: return sqrt($sum/($num-1));
567: }
568:
569: sub PROD {
570: my $mask=mask(@_);
571: my $prod=1;
572: foreach (grep /$mask/,keys(%v)) {
573: $prod*=$v{$_};
574: }
575: return $prod;
576: }
577:
578: sub MAX {
579: my $mask=mask(@_);
580: my $max='-';
581: foreach (grep /$mask/,keys(%v)) {
582: unless ($max) { $max=$v{$_}; }
583: if (($v{$_}>$max) || ($max eq '-')) { $max=$v{$_}; }
584: }
585: return $max;
586: }
587:
588: sub MIN {
589: my $mask=mask(@_);
590: my $min='-';
591: foreach (grep /$mask/,keys(%v)) {
592: unless ($max) { $max=$v{$_}; }
593: if (($v{$_}<$min) || ($min eq '-')) { $min=$v{$_}; }
594: }
595: return $min;
596: }
597:
598: sub SUMMAX {
599: my ($num,$lower,$upper)=@_;
600: my $mask=mask($lower,$upper);
601: my @inside=();
602: foreach (grep /$mask/,keys(%v)) {
603: $inside[$#inside+1]=$v{$_};
604: }
605: @inside=sort(@inside);
606: my $sum=0; my $i;
607: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
608: $sum+=$inside[$i];
609: }
610: return $sum;
611: }
612:
613: sub SUMMIN {
614: my ($num,$lower,$upper)=@_;
615: my $mask=mask($lower,$upper);
616: my @inside=();
617: foreach (grep /$mask/,keys(%v)) {
618: $inside[$#inside+1]=$v{$_};
619: }
620: @inside=sort(@inside);
621: my $sum=0; my $i;
622: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
623: $sum+=$inside[$i];
624: }
625: return $sum;
626: }
627:
628: sub expandnamed {
629: my $expression=shift;
630: if ($expression=~/^\&/) {
631: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
632: my @vars=split(/\W+/,$formula);
633: my %values=();
634: undef %values;
635: foreach ( @vars ) {
636: my $varname=$_;
637: if ($varname=~/\D/) {
638: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
639: $varname=~s/$var/\(\\w\+\)/g;
640: foreach (keys(%c)) {
641: if ($_=~/$varname/) {
642: $values{$1}=1;
643: }
644: }
645: }
646: }
647: if ($func eq 'EXPANDSUM') {
648: my $result='';
649: foreach (keys(%values)) {
650: my $thissum=$formula;
651: $thissum=~s/$var/$_/g;
652: $result.=$thissum.'+';
653: }
654: $result=~s/\+$//;
655: return $result;
656: } else {
657: return 0;
658: }
659: } else {
660: return '$c{\''.$expression.'\'}';
661: }
662: }
663:
664: sub sett {
665: %t=();
666: my $pattern='';
667: if ($sheettype eq 'assesscalc') {
668: $pattern='A';
669: } else {
670: $pattern='[A-Z]';
671: }
672: foreach (keys(%f)) {
673: if ($_=~/template\_(\w)/) {
674: my $col=$1;
675: unless ($col=~/^$pattern/) {
676: foreach (keys(%f)) {
677: if ($_=~/A(\d+)/) {
678: my $trow=$1;
679: if ($trow) {
680: my $lb=$col.$trow;
681: $t{$lb}=$f{'template_'.$col};
682: $t{$lb}=~s/\#/$trow/g;
683: $t{$lb}=~s/\.\.+/\,/g;
684: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
685: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
686: }
687: }
688: }
689: }
690: }
691: }
692: foreach (keys(%f)) {
693: if (($f{$_}) && ($_!~/template\_/)) {
694: my $matches=($_=~/^$pattern(\d+)/);
695: if (($matches) && ($1)) {
696: unless ($f{$_}=~/^\!/) {
697: $t{$_}=$c{$_};
698: }
699: } else {
700: $t{$_}=$f{$_};
701: $t{$_}=~s/\.\.+/\,/g;
702: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
703: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
704: }
705: }
706: }
707: $t{'A0'}=$f{'A0'};
708: $t{'A0'}=~s/\.\.+/\,/g;
709: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
710: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
711: }
712:
713: sub calc {
714: %v=();
715: &sett();
716: my $notfinished=1;
717: my $depth=0;
718: while ($notfinished) {
719: $notfinished=0;
720: foreach (keys(%t)) {
721: my $old=$v{$_};
722: $v{$_}=eval($t{$_});
723: if ($@) {
724: %v=();
725: return $@;
726: }
727: if ($v{$_} ne $old) { $notfinished=1; }
728: }
729: $depth++;
730: if ($depth>100) {
731: %v=();
732: return 'Maximum calculation depth exceeded';
733: }
734: }
735: return '';
736: }
737:
738: sub templaterow {
739: my @cols=();
740: $cols[0]='<b><font size=+1>Template</font></b>';
741: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
742: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
743: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
744: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
745: my $fm=$f{'template_'.$_};
746: $fm=~s/[\'\"]/\&\#34;/g;
747: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
748: }
749: return @cols;
750: }
751:
752: sub outrowassess {
753: my $n=shift;
754: my @cols=();
755: if ($n) {
756: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
757: $cols[0]=$rl{$usy}.'<br>'.
758: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
759: ')"><option name="default">Default</option>';
760: foreach (@os) {
761: $cols[0].='<option name="'.$_.'"';
762: if ($ufn eq $_) {
763: $cols[0].=' selected';
764: }
765: $cols[0].='>'.$_.'</option>';
766: }
767: $cols[0].='</select>';
768: } else {
769: $cols[0]='<b><font size=+1>Export</font></b>';
770: }
771: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
772: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
773: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
774: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
775: my $fm=$f{$_.$n};
776: $fm=~s/[\'\"]/\&\#34;/g;
777: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
778: }
779: return @cols;
780: }
781:
782: sub outrow {
783: my $n=shift;
784: my @cols=();
785: if ($n) {
786: $cols[0]=$rl{$f{'A'.$n}};
787: } else {
788: $cols[0]='<b><font size=+1>Export</font></b>';
789: }
790: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
791: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
792: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
793: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
794: my $fm=$f{$_.$n};
795: $fm=~s/[\'\"]/\&\#34;/g;
796: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
797: }
798: return @cols;
799: }
800:
801: sub exportrowa {
802: my @exportarray=();
803: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
804: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
805: $exportarray[$#exportarray+1]=$v{$_.'0'};
806: }
807: return @exportarray;
808: }
809:
810: # ------------------------------------------- End of "Inside of the safe space"
811: ENDDEFS
812: $safeeval->reval($code);
813: return $safeeval;
814: }
815:
816: # ------------------------------------------------ Add or change formula values
817:
818: sub setformulas {
819: my ($safeeval,%f)=@_;
820: %{$safeeval->varglob('f')}=%f;
821: }
822:
823: # ------------------------------------------------ Add or change formula values
824:
825: sub setconstants {
826: my ($safeeval,%c)=@_;
827: %{$safeeval->varglob('c')}=%c;
828: }
829:
830: # --------------------------------------------- Set names of other spreadsheets
831:
832: sub setothersheets {
833: my ($safeeval,@os)=@_;
834: @{$safeeval->varglob('os')}=@os;
835: }
836:
837: # ------------------------------------------------ Add or change formula values
838:
839: sub setrowlabels {
840: my ($safeeval,%rl)=@_;
841: %{$safeeval->varglob('rl')}=%rl;
842: }
843:
844: # ------------------------------------------------------- Calculate spreadsheet
845:
846: sub calcsheet {
847: my $safeeval=shift;
848: $safeeval->reval('&calc();');
849: }
850:
851: # ------------------------------------------------------------------ Get values
852:
853: sub getvalues {
854: my $safeeval=shift;
855: return $safeeval->reval('%v');
856: }
857:
858: # ---------------------------------------------------------------- Get formulas
859:
860: sub getformulas {
861: my $safeeval=shift;
862: return %{$safeeval->varglob('f')};
863: }
864:
865: # -------------------------------------------------------------------- Get type
866:
867: sub gettype {
868: my $safeeval=shift;
869: return $safeeval->reval('$sheettype');
870: }
871:
872: # ------------------------------------------------------------------ Set maxrow
873:
874: sub setmaxrow {
875: my ($safeeval,$row)=@_;
876: $safeeval->reval('$maxrow='.$row.';');
877: }
878:
879: # ------------------------------------------------------------------ Get maxrow
880:
881: sub getmaxrow {
882: my $safeeval=shift;
883: return $safeeval->reval('$maxrow');
884: }
885:
886: # ---------------------------------------------------------------- Set filename
887:
888: sub setfilename {
889: my ($safeeval,$fn)=@_;
890: $safeeval->reval('$filename="'.$fn.'";');
891: }
892:
893: # ---------------------------------------------------------------- Get filename
894:
895: sub getfilename {
896: my $safeeval=shift;
897: return $safeeval->reval('$filename');
898: }
899:
900: # --------------------------------------------------------------- Get course ID
901:
902: sub getcid {
903: my $safeeval=shift;
904: return $safeeval->reval('$cid');
905: }
906:
907: # --------------------------------------------------------- Get course filename
908:
909: sub getcfn {
910: my $safeeval=shift;
911: return $safeeval->reval('$cfn');
912: }
913:
914: # ----------------------------------------------------------- Get course number
915:
916: sub getcnum {
917: my $safeeval=shift;
918: return $safeeval->reval('$cnum');
919: }
920:
921: # ------------------------------------------------------------- Get course home
922:
923: sub getchome {
924: my $safeeval=shift;
925: return $safeeval->reval('$chome');
926: }
927:
928: # ----------------------------------------------------------- Get course domain
929:
930: sub getcdom {
931: my $safeeval=shift;
932: return $safeeval->reval('$cdom');
933: }
934:
935: # ---------------------------------------------------------- Get course section
936:
937: sub getcsec {
938: my $safeeval=shift;
939: return $safeeval->reval('$csec');
940: }
941:
942: # --------------------------------------------------------------- Get user name
943:
944: sub getuname {
945: my $safeeval=shift;
946: return $safeeval->reval('$uname');
947: }
948:
949: # ------------------------------------------------------------- Get user domain
950:
951: sub getudom {
952: my $safeeval=shift;
953: return $safeeval->reval('$udom');
954: }
955:
956: # --------------------------------------------------------------- Get user home
957:
958: sub getuhome {
959: my $safeeval=shift;
960: return $safeeval->reval('$uhome');
961: }
962:
963: # -------------------------------------------------------------------- Get symb
964:
965: sub getusymb {
966: my $safeeval=shift;
967: return $safeeval->reval('$usymb');
968: }
969:
970: # ------------------------------------------------------------- Export of A-row
971:
972: sub exportdata {
973: my $safeeval=shift;
974: return $safeeval->reval('&exportrowa()');
975: }
976:
977:
978: # ========================================================== End of Spreadsheet
979: # =============================================================================
980:
981: #
982: # Procedures for screen output
983: #
984: # --------------------------------------------- Produce output row n from sheet
985:
986: sub rown {
987: my ($safeeval,$n)=@_;
988: my $defaultbg;
989: my $rowdata='';
990: my $dataflag=0;
991: unless ($n eq '-') {
992: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
993: } else {
994: $defaultbg='#E0FF';
995: }
996: unless ($ENV{'form.showcsv'}) {
997: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
998: } else {
999: $rowdata.="\n".'"'.$n.'"';
1000: }
1001: my $showf=0;
1002: my $proc;
1003: my $maxred;
1004: my $sheettype=&gettype($safeeval);
1005: if ($sheettype eq 'studentcalc') {
1006: $proc='&outrowassess';
1007: $maxred=26;
1008: } else {
1009: $proc='&outrow';
1010: }
1011: if ($sheettype eq 'assesscalc') {
1012: $maxred=1;
1013: } else {
1014: $maxred=26;
1015: }
1016: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
1017: foreach ($safeeval->reval($proc.'('.$n.')')) {
1018: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1019: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1020: if ((($vl ne '') || ($vl eq '0')) &&
1021: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1022: if ($showf==0) { $vl=$_; }
1023: unless ($ENV{'form.showcsv'}) {
1024: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1025: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1026: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1027: if ($vl eq '') {
1028: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1029: }
1030: $rowdata.=
1031: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
1032: '</a></td>';
1033: } else {
1034: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1035: }
1036: } else {
1037: $rowdata.=',"'.$vl.'"';
1038: }
1039: $showf++;
1040: } # End of foreach($safeval...)
1041: if ($ENV{'form.showall'} || ($dataflag)) {
1042: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1043: } else {
1044: return '';
1045: }
1046: }
1047:
1048: # ------------------------------------------------------------- Print out sheet
1049:
1050: sub outsheet {
1051: my ($r,$safeeval)=@_;
1052: my $maxred;
1053: my $realm;
1054: if (&gettype($safeeval) eq 'assesscalc') {
1055: $maxred=1;
1056: $realm='Assessment';
1057: } elsif (&gettype($safeeval) eq 'studentcalc') {
1058: $maxred=26;
1059: $realm='User';
1060: } else {
1061: $maxred=26;
1062: $realm='Course';
1063: }
1064: my $maxyellow=52-$maxred;
1065: my $tabledata;
1066: unless ($ENV{'form.showcsv'}) {
1067: $tabledata=
1068: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
1069: $realm.'</font></th>'.
1070: '<td bgcolor=#FFDDDD colspan='.$maxred.
1071: '><b><font size=+1>Import</font></b></td>'.
1072: '<td colspan='.$maxyellow.
1073: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1074: my $showf=0;
1075: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1076: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1077: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1078: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1079: $showf++;
1080: if ($showf<=$maxred) {
1081: $tabledata.='<td bgcolor="#FFDDDD">';
1082: } else {
1083: $tabledata.='<td>';
1084: }
1085: $tabledata.="<b><font size=+1>$_</font></b></td>";
1086: }
1087: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1088: } else { $tabledata='<pre>'; }
1089:
1090: $r->print($tabledata);
1091:
1092: my $row;
1093: my $maxrow=&getmaxrow($safeeval);
1094:
1095: my @sortby=();
1096: my @sortidx=();
1097: for ($row=1;$row<=$maxrow;$row++) {
1098: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
1099: $sortidx[$row-1]=$row-1;
1100: }
1101: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1102:
1103: my $what='Student';
1104: if (&gettype($safeeval) eq 'assesscalc') {
1105: $what='Item';
1106: } elsif (&gettype($safeeval) eq 'studentcalc') {
1107: $what='Assessment';
1108: }
1109:
1110: my $n=0;
1111: for ($row=0;$row<$maxrow;$row++) {
1112: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1113: if ($thisrow) {
1114: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1115: $r->print("</table>\n<br>\n");
1116: $r->rflush();
1117: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1118: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1119: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1120: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1121: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1122: $r->print('<td>'.$_.'</td>');
1123: }
1124: $r->print('</tr>');
1125: }
1126: $n++;
1127: $r->print($thisrow);
1128: }
1129: }
1130: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1131: }
1132:
1133: #
1134: # ----------------------------------------------- Read list of available sheets
1135: #
1136: sub othersheets {
1137: my ($safeeval,$stype)=@_;
1138: #
1139: my $cnum=&getcnum($safeeval);
1140: my $cdom=&getcdom($safeeval);
1141: my $chome=&getchome($safeeval);
1142: #
1143: my @alternatives=();
1144: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1145: my ($tmp) = keys(%results);
1146: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1147: @alternatives = sort (keys(%results));
1148: }
1149: return @alternatives;
1150: }
1151:
1152:
1153: #
1154: # -------------------------------------- Parse a spreadsheet
1155: #
1156: sub parse_sheet {
1157: # $sheetxml is a scalar reference or a scalar
1158: my ($sheetxml) = @_;
1159: if (! ref($sheetxml)) {
1160: my $tmp = $sheetxml;
1161: $sheetxml = \$tmp;
1162: }
1163: my %f;
1164: my $parser=HTML::TokeParser->new($sheetxml);
1165: my $token;
1166: while ($token=$parser->get_token) {
1167: if ($token->[0] eq 'S') {
1168: if ($token->[1] eq 'field') {
1169: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1170: $parser->get_text('/field');
1171: }
1172: if ($token->[1] eq 'template') {
1173: $f{'template_'.$token->[2]->{'col'}}=
1174: $parser->get_text('/template');
1175: }
1176: }
1177: }
1178: return \%f;
1179: }
1180:
1181: #
1182: # -------------------------------------- Read spreadsheet formulas for a course
1183: #
1184:
1185: sub readsheet {
1186: my ($safeeval,$fn)=@_;
1187: my $stype=&gettype($safeeval);
1188: my $cnum=&getcnum($safeeval);
1189: my $cdom=&getcdom($safeeval);
1190: my $chome=&getchome($safeeval);
1191:
1192: if (! defined($fn) || $fn eq '') {
1193: # There is no filename. Look for defaults in course and global, cache
1194: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1195: my %tmphash = &Apache::lonnet::get('environment',
1196: ['spreadsheet_default_'.$stype],
1197: $cdom,$cnum);
1198: my ($tmp) = keys(%tmphash);
1199: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1200: $fn = 'default_'.$stype;
1201: } else {
1202: $fn = $tmphash{'spreadsheet_default_'.$stype};
1203: }
1204: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1205: }
1206: } else {
1207: # We do have a filename, do a get on it.
1208: my %tmphash = &Apache::lonnet::get('environment',
1209: [$fn],
1210: $cdom,$cnum);
1211: my ($tmp) = keys(%tmphash);
1212: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1213: # On error, grab the default filename
1214: $fn = 'default_'.$stype;
1215: } else {
1216: $fn = $tmphash{$fn};
1217: }
1218: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1219: }
1220:
1221: # ---------------------------------------------------------- fn now has a value
1222:
1223: &setfilename($safeeval,$fn);
1224:
1225: # ------------------------------------------------------ see if sheet is cached
1226: my $fstring='';
1227: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1228: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1229: } else {
1230:
1231: # ---------------------------------------------------- Not cached, need to read
1232:
1233: my %f=();
1234:
1235: if ($fn=~/^default\_/) {
1236: my $sheetxml='';
1237: my $fh;
1238: my $dfn=$fn;
1239: $dfn=~s/\_/\./g;
1240: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1241: $sheetxml=join('',<$fh>);
1242: } else {
1243: $sheetxml='<field row="0" col="A">"Error"</field>';
1244: }
1245: %f=&parse_sheet(\$sheetxml);
1246: } elsif($fn=~/\/*\.spreadsheet$/) {
1247: my $sheetxml='';
1248: my $fh;
1249: my $dfn=$fn;
1250: $dfn=~s/\_/\./g;
1251:
1252: if ($fn !~ /^$Apache::lonnet::perlvar{'lonDocRoot'}\/res/) {
1253: $fn = $Apache::lonnet::perlvar{'lonDocRoot'}.'/res'.$fn;
1254: }
1255: if ($fn !~ /^$Apache::lonnet::perlvar{'lonDocRoot'}/) {
1256: $fn = $Apache::lonnet::perlvar{'lonDocRoot'}.$fn;
1257: }
1258: if ($fh=Apache::File->new($fn)) {
1259: $sheetxml=join('',<$fh>);
1260: } else {
1261: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1262: .$fn.'"</field>';
1263: }
1264: %f=&parse_sheet(\$sheetxml);
1265: } else {
1266: my $sheet='';
1267: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1268: my ($tmp) = keys(%tmphash);
1269: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1270: foreach (keys(%tmphash)) {
1271: $f{$_}=$tmphash{$_};
1272: }
1273: }
1274: }
1275: # --------------------------------------------------------------- Cache and set
1276: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1277: &setformulas($safeeval,%f);
1278: }
1279: }
1280:
1281: # -------------------------------------------------------- Make new spreadsheet
1282:
1283: sub makenewsheet {
1284: my ($uname,$udom,$stype,$usymb)=@_;
1285: my $safeeval=initsheet($stype);
1286: $safeeval->reval(
1287: '$uname="'.$uname.
1288: '";$udom="'.$udom.
1289: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1290: '";$sheettype="'.$stype.
1291: '";$usymb="'.$usymb.
1292: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1293: $ENV{'request.course.id'}).
1294: '";$cid="'.$ENV{'request.course.id'}.
1295: '";$cfn="'.$ENV{'request.course.fn'}.
1296: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1297: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1298: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1299: return $safeeval;
1300: }
1301:
1302: # ------------------------------------------------------------ Save spreadsheet
1303:
1304: sub writesheet {
1305: my ($safeeval,$makedef)=@_;
1306: my $cid=&getcid($safeeval);
1307: if (&Apache::lonnet::allowed('opa',$cid)) {
1308: my %f=&getformulas($safeeval);
1309: my $stype=&gettype($safeeval);
1310: my $cnum=&getcnum($safeeval);
1311: my $cdom=&getcdom($safeeval);
1312: my $chome=&getchome($safeeval);
1313: my $fn=&getfilename($safeeval);
1314:
1315: # ------------------------------------------------------------- Cache new sheet
1316: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1317: # ----------------------------------------------------------------- Write sheet
1318: my $sheetdata='';
1319: foreach (keys(%f)) {
1320: unless ($f{$_} eq 'import') {
1321: $sheetdata.=&Apache::lonnet::escape($_).'='.
1322: &Apache::lonnet::escape($f{$_}).'&';
1323: }
1324: }
1325: $sheetdata=~s/\&$//;
1326: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1327: $sheetdata,$chome);
1328: if ($reply eq 'ok') {
1329: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1330: $stype.'_spreadsheets:'.
1331: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1332: $ENV{'user.domain'},
1333: $chome);
1334: if ($reply eq 'ok') {
1335: if ($makedef) {
1336: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1337: ':environment:spreadsheet_default_'.$stype.'='.
1338: &Apache::lonnet::escape($fn),
1339: $chome);
1340: } else {
1341: return $reply;
1342: }
1343: } else {
1344: return $reply;
1345: }
1346: } else {
1347: return $reply;
1348: }
1349: }
1350: return 'unauthorized';
1351: }
1352:
1353: # ----------------------------------------------- Make a temp copy of the sheet
1354: # "Modified workcopy" - interactive only
1355: #
1356:
1357: sub tmpwrite {
1358: my $safeeval=shift;
1359: my $fn=$ENV{'user.name'}.'_'.
1360: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1361: &getfilename($safeeval);
1362: $fn=~s/\W/\_/g;
1363: $fn=$tmpdir.$fn.'.tmp';
1364: my $fh;
1365: if ($fh=Apache::File->new('>'.$fn)) {
1366: print $fh join("\n",&getformulas($safeeval));
1367: }
1368: }
1369:
1370: # ---------------------------------------------------------- Read the temp copy
1371:
1372: sub tmpread {
1373: my ($safeeval,$nfield,$nform)=@_;
1374: my $fn=$ENV{'user.name'}.'_'.
1375: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1376: &getfilename($safeeval);
1377: $fn=~s/\W/\_/g;
1378: $fn=$tmpdir.$fn.'.tmp';
1379: my $fh;
1380: my %fo=();
1381: if ($fh=Apache::File->new($fn)) {
1382: my $name;
1383: while ($name=<$fh>) {
1384: chomp($name);
1385: my $value=<$fh>;
1386: chomp($value);
1387: $fo{$name}=$value;
1388: }
1389: }
1390: if ($nform eq 'changesheet') {
1391: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1392: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1393: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1394: }
1395: } else {
1396: if ($nfield) { $fo{$nfield}=$nform; }
1397: }
1398: &setformulas($safeeval,%fo);
1399: }
1400:
1401: # ================================================================== Parameters
1402: # -------------------------------------------- Figure out a cascading parameter
1403: #
1404: # For this function to work
1405: #
1406: # * parmhash needs to be tied
1407: # * courseopt and useropt need to be initialized for this user and course
1408: #
1409:
1410: sub parmval {
1411: my ($what,$safeeval)=@_;
1412: my $cid=&getcid($safeeval);
1413: my $csec=&getcsec($safeeval);
1414: my $uname=&getuname($safeeval);
1415: my $udom=&getudom($safeeval);
1416: my $symb=&getusymb($safeeval);
1417:
1418: unless ($symb) { return ''; }
1419: my $result='';
1420:
1421: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1422: # ----------------------------------------------------- Cascading lookup scheme
1423: my $rwhat=$what;
1424: $what=~s/^parameter\_//;
1425: $what=~s/\_([^\_]+)$/\.$1/;
1426:
1427: my $symbparm=$symb.'.'.$what;
1428: my $mapparm=$mapname.'___(all).'.$what;
1429: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1430:
1431: my $seclevel=
1432: $usercourseprefix.'.['.
1433: $csec.'].'.$what;
1434: my $seclevelr=
1435: $usercourseprefix.'.['.
1436: $csec.'].'.$symbparm;
1437: my $seclevelm=
1438: $usercourseprefix.'.['.
1439: $csec.'].'.$mapparm;
1440:
1441: my $courselevel=
1442: $usercourseprefix.'.'.$what;
1443: my $courselevelr=
1444: $usercourseprefix.'.'.$symbparm;
1445: my $courselevelm=
1446: $usercourseprefix.'.'.$mapparm;
1447:
1448: # ---------------------------------------------------------- fourth, check user
1449:
1450: if ($uname) {
1451:
1452: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1453:
1454: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1455:
1456: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1457:
1458: }
1459:
1460: # --------------------------------------------------------- third, check course
1461:
1462: if ($csec) {
1463:
1464: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1465:
1466: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1467:
1468: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1469:
1470: }
1471:
1472: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1473:
1474: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1475:
1476: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1477:
1478: # ----------------------------------------------------- second, check map parms
1479:
1480: my $thisparm=$parmhash{$symbparm};
1481: if ($thisparm) { return $thisparm; }
1482:
1483: # -------------------------------------------------------- first, check default
1484:
1485: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1486:
1487: }
1488:
1489: # ---------------------------------------------- Update rows for course listing
1490:
1491: sub updateclasssheet {
1492: my $safeeval=shift;
1493: my $cnum=&getcnum($safeeval);
1494: my $cdom=&getcdom($safeeval);
1495: my $cid=&getcid($safeeval);
1496: my $chome=&getchome($safeeval);
1497:
1498: # ---------------------------------------------- Read class list and row labels
1499:
1500: my $classlst=&Apache::lonnet::reply
1501: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1502: my %currentlist=();
1503: my $now=time;
1504: unless ($classlst=~/^error\:/) {
1505: foreach (split(/\&/,$classlst)) {
1506: my ($name,$value)=split(/\=/,$_);
1507: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1508: my $active=1;
1509: if (($end) && ($now>$end)) { $active=0; }
1510: if ($active) {
1511: my $rowlabel='';
1512: $name=&Apache::lonnet::unescape($name);
1513: my ($sname,$sdom)=split(/\:/,$name);
1514: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1515: if ($ssec==-1) {
1516: unless ($ENV{'form.showcsv'}) {
1517: $rowlabel='<font color=red>Data not available: '.$name.
1518: '</font>';
1519: } else {
1520: $rowlabel='ERROR","'.$name.
1521: '","Data not available","","","';
1522: }
1523: } else {
1524: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1525: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1526: ':environment:firstname&middlename&lastname&generation',
1527: &Apache::lonnet::homeserver($sname,$sdom));
1528: unless ($ENV{'form.showcsv'}) {
1529: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1530: '&udom='.$sdom.'">'.
1531: $ssec.' '.$reply{$sname}.'<br>';
1532: foreach ( split(/\&/,$reply)) {
1533: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1534: }
1535: $rowlabel.='</a>';
1536: } else {
1537: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1538: my $ncount=0;
1539: foreach (split(/\&/,$reply)) {
1540: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1541: $ncount++;
1542: }
1543: unless ($ncount==4) { $rowlabel.=',""'; }
1544: $rowlabel=~s/\"$//;
1545: }
1546: }
1547: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1548: }
1549: } # end of foreach (split(/\&/,$classlst))
1550: #
1551: # -------------------- Find discrepancies between the course row table and this
1552: #
1553: my %f=&getformulas($safeeval);
1554: my $changed=0;
1555:
1556: my $maxrow=0;
1557: my %existing=();
1558:
1559: # ----------------------------------------------------------- Now obsolete rows
1560: foreach (keys(%f)) {
1561: if ($_=~/^A(\d+)/) {
1562: $maxrow=($1>$maxrow)?$1:$maxrow;
1563: $existing{$f{$_}}=1;
1564: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1565: $f{$_}='!!! Obsolete';
1566: $changed=1;
1567: }
1568: }
1569: }
1570:
1571: # -------------------------------------------------------- New and unknown keys
1572:
1573: foreach (sort keys(%currentlist)) {
1574: unless ($existing{$_}) {
1575: $changed=1;
1576: $maxrow++;
1577: $f{'A'.$maxrow}=$_;
1578: }
1579: }
1580:
1581: if ($changed) { &setformulas($safeeval,%f); }
1582:
1583: &setmaxrow($safeeval,$maxrow);
1584: &setrowlabels($safeeval,%currentlist);
1585:
1586: } else {
1587: return 'Could not access course data';
1588: }
1589: }
1590:
1591: # ----------------------------------- Update rows for student and assess sheets
1592:
1593: sub updatestudentassesssheet {
1594: my $safeeval=shift;
1595: my %bighash;
1596: my $stype=&gettype($safeeval);
1597: my %current=();
1598: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1599: # -------------------------------------------------------------------- Tie hash
1600: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1601: &GDBM_READER,0640)) {
1602: # --------------------------------------------------------- Get all assessments
1603:
1604: my %allkeys=('timestamp' =>
1605: 'Timestamp of Last Transaction<br>timestamp',
1606: 'subnumber' =>
1607: 'Number of Submissions<br>subnumber',
1608: 'tutornumber' =>
1609: 'Number of Tutor Responses<br>tutornumber',
1610: 'totalpoints' =>
1611: 'Total Points Granted<br>totalpoints');
1612:
1613: my $adduserstr='';
1614: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1615: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1616: $adduserstr='&uname='.&getuname($safeeval).
1617: '&udom='.&getudom($safeeval);
1618: }
1619:
1620: my %allassess=('_feedback' =>
1621: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1622: '">Feedback</a>',
1623: '_evaluation' =>
1624: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1625: '">Evaluation</a>',
1626: '_tutoring' =>
1627: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1628: '">Tutoring</a>',
1629: '_discussion' =>
1630: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1631: '">Discussion</a>'
1632: );
1633:
1634: foreach (keys(%bighash)) {
1635: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1636: my $mapid=$1;
1637: my $resid=$2;
1638: my $id=$mapid.'.'.$resid;
1639: my $srcf=$bighash{$_};
1640: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1641: my $symb=
1642: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1643: '___'.$resid.'___'.
1644: &Apache::lonnet::declutter($srcf);
1645: $allassess{$symb}=
1646: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1647: $bighash{'title_'.$id}.'</a>';
1648: if ($stype eq 'assesscalc') {
1649: foreach (split(/\,/,
1650: &Apache::lonnet::metadata($srcf,'keys'))) {
1651: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1652: my $key=$_;
1653: my $display=
1654: &Apache::lonnet::metadata($srcf,$key.'.display');
1655: unless ($display) {
1656: $display.=
1657: &Apache::lonnet::metadata($srcf,$key.'.name');
1658: }
1659: $display.='<br>'.$key;
1660: $allkeys{$key}=$display;
1661: }
1662: } # end of foreach
1663: }
1664: }
1665: }
1666: } # end of foreach (keys(%bighash))
1667: untie(%bighash);
1668:
1669: #
1670: # %allkeys has a list of storage and parameter displays by unikey
1671: # %allassess has a list of all resource displays by symb
1672: #
1673:
1674: if ($stype eq 'assesscalc') {
1675: %current=%allkeys;
1676: } elsif ($stype eq 'studentcalc') {
1677: %current=%allassess;
1678: }
1679: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1680: join('___;___',%current);
1681: } else {
1682: return 'Could not access course data';
1683: }
1684: # ------------------------------------------------------ Get current from cache
1685: } else {
1686: %current=split(/\_\_\_\;\_\_\_/,
1687: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1688: }
1689: # -------------------- Find discrepancies between the course row table and this
1690: #
1691: my %f=&getformulas($safeeval);
1692: my $changed=0;
1693:
1694: my $maxrow=0;
1695: my %existing=();
1696:
1697: # ----------------------------------------------------------- Now obsolete rows
1698: foreach (keys(%f)) {
1699: if ($_=~/^A(\d+)/) {
1700: $maxrow=($1>$maxrow)?$1:$maxrow;
1701: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1702: $existing{$usy}=1;
1703: unless ((defined($current{$usy})) || (!$1)) {
1704: $f{$_}='!!! Obsolete';
1705: $changed=1;
1706: } elsif ($ufn) {
1707: $current{$usy}
1708: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1709: }
1710: }
1711: }
1712:
1713: # -------------------------------------------------------- New and unknown keys
1714:
1715: foreach (keys(%current)) {
1716: unless ($existing{$_}) {
1717: $changed=1;
1718: $maxrow++;
1719: $f{'A'.$maxrow}=$_;
1720: }
1721: }
1722:
1723: if ($changed) { &setformulas($safeeval,%f); }
1724:
1725: &setmaxrow($safeeval,$maxrow);
1726: &setrowlabels($safeeval,%current);
1727:
1728: undef %current;
1729: undef %existing;
1730: }
1731:
1732: # ------------------------------------------------ Load data for one assessment
1733:
1734: sub loadstudent {
1735: my $safeeval=shift;
1736: my %c=();
1737: my %f=&getformulas($safeeval);
1738: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1739: %cachedstores=();
1740: {
1741: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1742: &getuname($safeeval).':'.
1743: &getcid($safeeval),
1744: &getuhome($safeeval));
1745: unless ($reply=~/^error\:/) {
1746: foreach ( split(/\&/,$reply)) {
1747: my ($name,$value)=split(/\=/,$_);
1748: $cachedstores{&Apache::lonnet::unescape($name)}=
1749: &Apache::lonnet::unescape($value);
1750: }
1751: }
1752: }
1753: my @assessdata=();
1754: foreach (keys(%f)) {
1755: if ($_=~/^A(\d+)/) {
1756: my $row=$1;
1757: unless (($f{$_}=~/^\!/) || ($row==0)) {
1758: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1759: @assessdata=&exportsheet(&getuname($safeeval),
1760: &getudom($safeeval),
1761: 'assesscalc',$usy,$ufn);
1762: my $index=0;
1763: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1764: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1765: if ($assessdata[$index]) {
1766: my $col=$_;
1767: if ($assessdata[$index]=~/\D/) {
1768: $c{$col.$row}="'".$assessdata[$index]."'";
1769: } else {
1770: $c{$col.$row}=$assessdata[$index];
1771: }
1772: unless ($col eq 'A') {
1773: $f{$col.$row}='import';
1774: }
1775: }
1776: $index++;
1777: }
1778: }
1779: }
1780: }
1781: $cachedassess='';
1782: undef %cachedstores;
1783: &setformulas($safeeval,%f);
1784: &setconstants($safeeval,%c);
1785: }
1786:
1787: # --------------------------------------------------- Load data for one student
1788:
1789: sub loadcourse {
1790: my ($safeeval,$r)=@_;
1791: my %c=();
1792: my %f=&getformulas($safeeval);
1793: my $total=0;
1794: foreach (keys(%f)) {
1795: if ($_=~/^A(\d+)/) {
1796: unless ($f{$_}=~/^\!/) { $total++; }
1797: }
1798: }
1799: my $now=0;
1800: my $since=time;
1801: $r->print(<<ENDPOP);
1802: <script>
1803: popwin=open('','popwin','width=400,height=100');
1804: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1805: '<h3>Spreadsheet Calculation Progress</h3>'+
1806: '<form name=popremain>'+
1807: '<input type=text size=35 name=remaining value=Starting></form>'+
1808: '</body></html>');
1809: popwin.document.close();
1810: </script>
1811: ENDPOP
1812: $r->rflush();
1813: foreach (keys(%f)) {
1814: if ($_=~/^A(\d+)/) {
1815: my $row=$1;
1816: unless (($f{$_}=~/^\!/) || ($row==0)) {
1817: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1818: 'studentcalc');
1819: undef %userrdatas;
1820: $now++;
1821: $r->print('<script>popwin.document.popremain.remaining.value="'.
1822: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1823: ' secs remaining";</script>');
1824: $r->rflush();
1825:
1826: my $index=0;
1827: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1828: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1829: if ($studentdata[$index]) {
1830: my $col=$_;
1831: if ($studentdata[$index]=~/\D/) {
1832: $c{$col.$row}="'".$studentdata[$index]."'";
1833: } else {
1834: $c{$col.$row}=$studentdata[$index];
1835: }
1836: unless ($col eq 'A') {
1837: $f{$col.$row}='import';
1838: }
1839: }
1840: $index++;
1841: }
1842: }
1843: }
1844: }
1845: &setformulas($safeeval,%f);
1846: &setconstants($safeeval,%c);
1847: $r->print('<script>popwin.close()</script>');
1848: $r->rflush();
1849: }
1850:
1851: # ------------------------------------------------ Load data for one assessment
1852:
1853: sub loadassessment {
1854: my $safeeval=shift;
1855:
1856: my $uhome=&getuhome($safeeval);
1857: my $uname=&getuname($safeeval);
1858: my $udom=&getudom($safeeval);
1859: my $symb=&getusymb($safeeval);
1860: my $cid=&getcid($safeeval);
1861: my $cnum=&getcnum($safeeval);
1862: my $cdom=&getcdom($safeeval);
1863: my $chome=&getchome($safeeval);
1864:
1865: my $namespace;
1866: unless ($namespace=$cid) { return ''; }
1867:
1868: # ----------------------------------------------------------- Get stored values
1869:
1870: my %returnhash=();
1871:
1872: if ($cachedassess eq $uname.':'.$udom) {
1873: #
1874: # get data out of the dumped stores
1875: #
1876:
1877: my $version=$cachedstores{'version:'.$symb};
1878: my $scope;
1879: for ($scope=1;$scope<=$version;$scope++) {
1880: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1881: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1882: }
1883: }
1884:
1885: } else {
1886: #
1887: # restore individual
1888: #
1889:
1890: my $answer=&Apache::lonnet::reply(
1891: "restore:$udom:$uname:".
1892: &Apache::lonnet::escape($namespace).":".
1893: &Apache::lonnet::escape($symb),$uhome);
1894: foreach (split(/\&/,$answer)) {
1895: my ($name,$value)=split(/\=/,$_);
1896: $returnhash{&Apache::lonnet::unescape($name)}=
1897: &Apache::lonnet::unescape($value);
1898: }
1899: my $version;
1900: for ($version=1;$version<=$returnhash{'version'};$version++) {
1901: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1902: $returnhash{$_}=$returnhash{$version.':'.$_};
1903: }
1904: }
1905: }
1906: # ----------------------------- returnhash now has all stores for this resource
1907:
1908: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1909:
1910: my @oldkeys=keys %returnhash;
1911:
1912: foreach (@oldkeys) {
1913: my $name=$_;
1914: my $value=$returnhash{$_};
1915: delete $returnhash{$_};
1916: $name=~s/\_/\./g;
1917: $returnhash{$name}=$value;
1918: }
1919:
1920: # ---------------------------- initialize coursedata and userdata for this user
1921: undef %courseopt;
1922: undef %useropt;
1923:
1924: my $userprefix=$uname.'_'.$udom.'_';
1925:
1926: unless ($uhome eq 'no_host') {
1927: # -------------------------------------------------------------- Get coursedata
1928: unless
1929: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1930: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1931: ':resourcedata',$chome);
1932: if ($reply!~/^error\:/) {
1933: $courserdatas{$cid}=$reply;
1934: $courserdatas{$cid.'.last_cache'}=time;
1935: }
1936: }
1937: foreach (split(/\&/,$courserdatas{$cid})) {
1938: my ($name,$value)=split(/\=/,$_);
1939: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1940: &Apache::lonnet::unescape($value);
1941: }
1942: # --------------------------------------------------- Get userdata (if present)
1943: unless
1944: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1945: my $reply=
1946: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1947: if ($reply!~/^error\:/) {
1948: $userrdatas{$uname.'___'.$udom}=$reply;
1949: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1950: }
1951: }
1952: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
1953: my ($name,$value)=split(/\=/,$_);
1954: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1955: &Apache::lonnet::unescape($value);
1956: }
1957: }
1958: # ----------------- now courseopt, useropt initialized for this user and course
1959: # (used by parmval)
1960:
1961: #
1962: # Load keys for this assessment only
1963: #
1964: my %thisassess=();
1965: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1966:
1967: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
1968: $thisassess{$_}=1;
1969: }
1970: #
1971: # Load parameters
1972: #
1973: my %c=();
1974:
1975: if (tie(%parmhash,'GDBM_File',
1976: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1977: my %f=&getformulas($safeeval);
1978: foreach (keys(%f)) {
1979: if ($_=~/^A/) {
1980: unless ($f{$_}=~/^\!/) {
1981: if ($f{$_}=~/^parameter/) {
1982: if ($thisassess{$f{$_}}) {
1983: my $val=&parmval($f{$_},$safeeval);
1984: $c{$_}=$val;
1985: $c{$f{$_}}=$val;
1986: }
1987: } else {
1988: my $key=$f{$_};
1989: my $ckey=$key;
1990: $key=~s/^stores\_/resource\./;
1991: $key=~s/\_/\./g;
1992: $c{$_}=$returnhash{$key};
1993: $c{$ckey}=$returnhash{$key};
1994: }
1995: }
1996: }
1997: }
1998: untie(%parmhash);
1999: }
2000: &setconstants($safeeval,%c);
2001: }
2002:
2003: # --------------------------------------------------------- Various form fields
2004:
2005: sub textfield {
2006: my ($title,$name,$value)=@_;
2007: return "\n<p><b>$title:</b><br>".
2008: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2009: }
2010:
2011: sub hiddenfield {
2012: my ($name,$value)=@_;
2013: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2014: }
2015:
2016: sub selectbox {
2017: my ($title,$name,$value,%options)=@_;
2018: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2019: foreach (sort keys(%options)) {
2020: $selout.='<option value="'.$_.'"';
2021: if ($_ eq $value) { $selout.=' selected'; }
2022: $selout.='>'.$options{$_}.'</option>';
2023: }
2024: return $selout.'</select>';
2025: }
2026:
2027: # =============================================== Update information in a sheet
2028: #
2029: # Add new users or assessments, etc.
2030: #
2031:
2032: sub updatesheet {
2033: my $safeeval=shift;
2034: my $stype=&gettype($safeeval);
2035: if ($stype eq 'classcalc') {
2036: return &updateclasssheet($safeeval);
2037: } else {
2038: return &updatestudentassesssheet($safeeval);
2039: }
2040: }
2041:
2042: # =================================================== Load the rows for a sheet
2043: #
2044: # Import the data for rows
2045: #
2046:
2047: sub loadrows {
2048: my ($safeeval,$r)=@_;
2049: my $stype=&gettype($safeeval);
2050: if ($stype eq 'classcalc') {
2051: &loadcourse($safeeval,$r);
2052: } elsif ($stype eq 'studentcalc') {
2053: &loadstudent($safeeval);
2054: } else {
2055: &loadassessment($safeeval);
2056: }
2057: }
2058:
2059: # ======================================================= Forced recalculation?
2060:
2061: sub checkthis {
2062: my ($keyname,$time)=@_;
2063: return ($time<$expiredates{$keyname});
2064: }
2065: sub forcedrecalc {
2066: my ($uname,$udom,$stype,$usymb)=@_;
2067: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2068: my $time=$oldsheets{$key.'.time'};
2069: if ($ENV{'form.forcerecalc'}) { return 1; }
2070: unless ($time) { return 1; }
2071: if ($stype eq 'assesscalc') {
2072: my $map=(split(/\_\_\_/,$usymb))[0];
2073: if (&checkthis('::assesscalc:',$time) ||
2074: &checkthis('::assesscalc:'.$map,$time) ||
2075: &checkthis('::assesscalc:'.$usymb,$time) ||
2076: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2077: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2078: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2079: return 1;
2080: }
2081: } else {
2082: if (&checkthis('::studentcalc:',$time) ||
2083: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2084: return 1;
2085: }
2086: }
2087: return 0;
2088: }
2089:
2090: # ============================================================== Export handler
2091: #
2092: # Non-interactive call from with program
2093: #
2094:
2095: sub exportsheet {
2096: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2097: my @exportarr=();
2098:
2099: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2100: $fn='default_'.$1;
2101: }
2102:
2103: #
2104: # Check if cached
2105: #
2106:
2107: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2108: my $found='';
2109:
2110: if ($oldsheets{$key}) {
2111: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2112: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2113: if ($name eq $fn) {
2114: $found=$value;
2115: }
2116: }
2117: }
2118:
2119: unless ($found) {
2120: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2121: if ($oldsheets{$key}) {
2122: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2123: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2124: if ($name eq $fn) {
2125: $found=$value;
2126: }
2127: }
2128: }
2129: }
2130: #
2131: # Check if still valid
2132: #
2133: if ($found) {
2134: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2135: $found='';
2136: }
2137: }
2138:
2139: if ($found) {
2140: #
2141: # Return what was cached
2142: #
2143: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2144:
2145: } else {
2146: #
2147: # Not cached
2148: #
2149:
2150: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2151: &readsheet($thissheet,$fn);
2152: &updatesheet($thissheet);
2153: &loadrows($thissheet);
2154: &calcsheet($thissheet);
2155: @exportarr=&exportdata($thissheet);
2156: #
2157: # Store now
2158: #
2159: my $cid=$ENV{'request.course.id'};
2160: my $current='';
2161: if ($stype eq 'studentcalc') {
2162: $current=&Apache::lonnet::reply('get:'.
2163: $ENV{'course.'.$cid.'.domain'}.':'.
2164: $ENV{'course.'.$cid.'.num'}.
2165: ':nohist_calculatedsheets:'.
2166: &Apache::lonnet::escape($key),
2167: $ENV{'course.'.$cid.'.home'});
2168: } else {
2169: $current=&Apache::lonnet::reply('get:'.
2170: &getudom($thissheet).':'.
2171: &getuname($thissheet).
2172: ':nohist_calculatedsheets_'.
2173: $ENV{'request.course.id'}.':'.
2174: &Apache::lonnet::escape($key),
2175: &getuhome($thissheet));
2176:
2177: }
2178: my %currentlystored=();
2179: unless ($current=~/^error\:/) {
2180: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2181: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2182: $currentlystored{$name}=$value;
2183: }
2184: }
2185: $currentlystored{$fn}=join('___;___',@exportarr);
2186:
2187: my $newstore='';
2188: foreach (keys(%currentlystored)) {
2189: if ($newstore) { $newstore.='___&___'; }
2190: $newstore.=$_.'___=___'.$currentlystored{$_};
2191: }
2192: my $now=time;
2193: if ($stype eq 'studentcalc') {
2194: &Apache::lonnet::reply('put:'.
2195: $ENV{'course.'.$cid.'.domain'}.':'.
2196: $ENV{'course.'.$cid.'.num'}.
2197: ':nohist_calculatedsheets:'.
2198: &Apache::lonnet::escape($key).'='.
2199: &Apache::lonnet::escape($newstore).'&'.
2200: &Apache::lonnet::escape($key).'.time='.$now,
2201: $ENV{'course.'.$cid.'.home'});
2202: } else {
2203: &Apache::lonnet::reply('put:'.
2204: &getudom($thissheet).':'.
2205: &getuname($thissheet).
2206: ':nohist_calculatedsheets_'.
2207: $ENV{'request.course.id'}.':'.
2208: &Apache::lonnet::escape($key).'='.
2209: &Apache::lonnet::escape($newstore).'&'.
2210: &Apache::lonnet::escape($key).'.time='.$now,
2211: &getuhome($thissheet));
2212: }
2213: }
2214: return @exportarr;
2215: }
2216: # ============================================================ Expiration Dates
2217: #
2218: # Load previously cached student spreadsheets for this course
2219: #
2220:
2221: sub expirationdates {
2222: undef %expiredates;
2223: my $cid=$ENV{'request.course.id'};
2224: my $reply=&Apache::lonnet::reply('dump:'.
2225: $ENV{'course.'.$cid.'.domain'}.':'.
2226: $ENV{'course.'.$cid.'.num'}.
2227: ':nohist_expirationdates',
2228: $ENV{'course.'.$cid.'.home'});
2229: unless ($reply=~/^error\:/) {
2230: foreach (split(/\&/,$reply)) {
2231: my ($name,$value)=split(/\=/,$_);
2232: $expiredates{&Apache::lonnet::unescape($name)}
2233: =&Apache::lonnet::unescape($value);
2234: }
2235: }
2236: }
2237:
2238: # ===================================================== Calculated sheets cache
2239: #
2240: # Load previously cached student spreadsheets for this course
2241: #
2242:
2243: sub cachedcsheets {
2244: my $cid=$ENV{'request.course.id'};
2245: my $reply=&Apache::lonnet::reply('dump:'.
2246: $ENV{'course.'.$cid.'.domain'}.':'.
2247: $ENV{'course.'.$cid.'.num'}.
2248: ':nohist_calculatedsheets',
2249: $ENV{'course.'.$cid.'.home'});
2250: unless ($reply=~/^error\:/) {
2251: foreach ( split(/\&/,$reply)) {
2252: my ($name,$value)=split(/\=/,$_);
2253: $oldsheets{&Apache::lonnet::unescape($name)}
2254: =&Apache::lonnet::unescape($value);
2255: }
2256: }
2257: }
2258:
2259: # ===================================================== Calculated sheets cache
2260: #
2261: # Load previously cached assessment spreadsheets for this student
2262: #
2263:
2264: sub cachedssheets {
2265: my ($sname,$sdom,$shome)=@_;
2266: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2267: my $cid=$ENV{'request.course.id'};
2268: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2269: ':nohist_calculatedsheets_'.
2270: $ENV{'request.course.id'},
2271: $shome);
2272: unless ($reply=~/^error\:/) {
2273: foreach ( split(/\&/,$reply)) {
2274: my ($name,$value)=split(/\=/,$_);
2275: $oldsheets{&Apache::lonnet::unescape($name)}
2276: =&Apache::lonnet::unescape($value);
2277: }
2278: }
2279: $loadedcaches{$sname.'_'.$sdom}=1;
2280: }
2281: }
2282:
2283: # ===================================================== Calculated sheets cache
2284: #
2285: # Load previously cached assessment spreadsheets for this student
2286: #
2287:
2288: # ================================================================ Main handler
2289: #
2290: # Interactive call to screen
2291: #
2292: #
2293:
2294:
2295: sub handler {
2296: my $r=shift;
2297:
2298: if ($r->header_only) {
2299: $r->content_type('text/html');
2300: $r->send_http_header;
2301: return OK;
2302: }
2303:
2304: # ---------------------------------------------------- Global directory configs
2305:
2306: $includedir=$r->dir_config('lonIncludes');
2307: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2308:
2309: # ----------------------------------------------------- Needs to be in a course
2310:
2311: if ($ENV{'request.course.fn'}) {
2312:
2313: # --------------------------- Get query string for limited number of parameters
2314:
2315: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
2316: my ($name, $value) = split(/=/,$_);
2317: $value =~ tr/+/ /;
2318: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2319: if (($name eq 'uname') || ($name eq 'udom') ||
2320: ($name eq 'usymb') || ($name eq 'ufn')) {
2321: unless ($ENV{'form.'.$name}) {
2322: $ENV{'form.'.$name}=$value;
2323: }
2324: }
2325: }
2326:
2327: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2328: $ENV{'form.ufn'}='default_'.$1;
2329: }
2330:
2331: # -------------------------------------- Interactive loading of specific sheet?
2332: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2333: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2334: }
2335: # ------------------------------------------- Nothing there? Must be login user
2336:
2337: my $aname;
2338: my $adom;
2339:
2340: unless ($ENV{'form.uname'}) {
2341: $aname=$ENV{'user.name'};
2342: $adom=$ENV{'user.domain'};
2343: } else {
2344: $aname=$ENV{'form.uname'};
2345: $adom=$ENV{'form.udom'};
2346: }
2347:
2348: # ------------------------------------------------------------------- Open page
2349:
2350: $r->content_type('text/html');
2351: $r->header_out('Cache-control','no-cache');
2352: $r->header_out('Pragma','no-cache');
2353: $r->send_http_header;
2354:
2355: # --------------------------------------------------------------- Screen output
2356:
2357: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2358: $r->print(<<ENDSCRIPT);
2359: <script language="JavaScript">
2360:
2361: function celledit(cn,cf) {
2362: var cnf=prompt(cn,cf);
2363: if (cnf!=null) {
2364: document.sheet.unewfield.value=cn;
2365: document.sheet.unewformula.value=cnf;
2366: document.sheet.submit();
2367: }
2368: }
2369:
2370: function changesheet(cn) {
2371: document.sheet.unewfield.value=cn;
2372: document.sheet.unewformula.value='changesheet';
2373: document.sheet.submit();
2374: }
2375:
2376: </script>
2377: ENDSCRIPT
2378: $r->print('</head><body bgcolor="#FFFFFF">'.
2379: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2380: '<h1>LON-CAPA Spreadsheet</h1>'.
2381: '<form action="'.$r->uri.'" name=sheet method=post>'.
2382: &hiddenfield('uname',$ENV{'form.uname'}).
2383: &hiddenfield('udom',$ENV{'form.udom'}).
2384: &hiddenfield('usymb',$ENV{'form.usymb'}).
2385: &hiddenfield('unewfield','').
2386: &hiddenfield('unewformula',''));
2387:
2388: # ---------------------- Make sure that this gets out, even if user hits "stop"
2389:
2390: $r->rflush();
2391:
2392: # ---------------------------------------------------------------- Full recalc?
2393:
2394:
2395: if ($ENV{'form.forcerecalc'}) {
2396: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2397: undef %spreadsheets;
2398: undef %courserdatas;
2399: undef %userrdatas;
2400: undef %defaultsheets;
2401: undef %updatedata;
2402: }
2403:
2404: # ---------------------------------------- Read new sheet or modified worksheet
2405:
2406: $r->uri=~/\/(\w+)$/;
2407:
2408: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2409:
2410: # ------------------------ If a new formula had been entered, go from work copy
2411:
2412: if ($ENV{'form.unewfield'}) {
2413: $r->print('<h2>Modified Workcopy</h2>');
2414: $ENV{'form.unewformula'}=~s/\'/\"/g;
2415: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2416: $ENV{'form.unewformula'}.'<p>');
2417: &setfilename($asheet,$ENV{'form.ufn'});
2418: &tmpread($asheet,
2419: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2420:
2421: } elsif ($ENV{'form.saveas'}) {
2422: &setfilename($asheet,$ENV{'form.ufn'});
2423: &tmpread($asheet);
2424: } else {
2425: &readsheet($asheet,$ENV{'form.ufn'});
2426: }
2427:
2428: # -------------------------------------------------- Print out user information
2429:
2430: unless (&gettype($asheet) eq 'classcalc') {
2431: $r->print('<p><b>User:</b> '.&getuname($asheet).
2432: '<br><b>Domain:</b> '.&getudom($asheet));
2433: if (&getcsec($asheet) eq '-1') {
2434: $r->print('<h3><font color=red>'.
2435: 'Not a student in this course</font></h3>');
2436: } else {
2437: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2438: }
2439: if ($ENV{'form.usymb'}) {
2440: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2441: }
2442: }
2443:
2444: # ---------------------------------------------------------------- Course title
2445:
2446: $r->print('<h1>'.
2447: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2448: '</h1><h3>'.localtime().'</h3>');
2449:
2450: # ---------------------------------------------------- See if user can see this
2451:
2452: if ((&gettype($asheet) eq 'classcalc') ||
2453: (&getuname($asheet) ne $ENV{'user.name'}) ||
2454: (&getudom($asheet) ne $ENV{'user.domain'})) {
2455: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2456: $r->print(
2457: '<h1>Access Permission Denied</h1></form></body></html>');
2458: return OK;
2459: }
2460: }
2461:
2462: # ---------------------------------------------------------- Additional options
2463:
2464: $r->print(
2465: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2466: );
2467: if (&gettype($asheet) eq 'assesscalc') {
2468: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2469: &getuname($asheet).
2470: '&udom='.&getudom($asheet).
2471: '">Level up: Student Sheet</a></font><p>');
2472: }
2473:
2474: if ((&gettype($asheet) eq 'studentcalc') &&
2475: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2476: $r->print (
2477: '<p><font size=+2><a href="/adm/classcalc">'.
2478: 'Level up: Course Sheet</a></font><p>');
2479: }
2480:
2481:
2482: # ----------------------------------------------------------------- Save dialog
2483:
2484:
2485: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2486: my $fname=$ENV{'form.ufn'};
2487: $fname=~s/\_[^\_]+$//;
2488: if ($fname eq 'default') { $fname='course_default'; }
2489: $r->print('<input type=submit name=saveas value="Save as ...">'.
2490: '<input type=text size=20 name=newfn value="'.$fname.
2491: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2492: }
2493:
2494: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2495:
2496: # ----------------------------------------------------------------- Load dialog
2497: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2498: $r->print('<p><input type=submit name=load value="Load ...">'.
2499: '<select name="loadthissheet">'.
2500: '<option name="default">Default</option>');
2501: foreach (&othersheets($asheet,&gettype($asheet))) {
2502: $r->print('<option name="'.$_.'"');
2503: if ($ENV{'form.ufn'} eq $_) {
2504: $r->print(' selected');
2505: }
2506: $r->print('>'.$_.'</option>');
2507: }
2508: $r->print('</select><p>');
2509: if (&gettype($asheet) eq 'studentcalc') {
2510: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2511: }
2512: }
2513:
2514: # --------------------------------------------------------------- Cached sheets
2515:
2516: &expirationdates();
2517:
2518: undef %oldsheets;
2519: undef %loadedcaches;
2520:
2521: if (&gettype($asheet) eq 'classcalc') {
2522: $r->print("Loading previously calculated student sheets ...<br>\n");
2523: $r->rflush();
2524: &cachedcsheets();
2525: } elsif (&gettype($asheet) eq 'studentcalc') {
2526: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2527: $r->rflush();
2528: &cachedssheets(&getuname($asheet),&getudom($asheet),
2529: &getuhome($asheet));
2530: }
2531:
2532: # ----------------------------------------------------- Update sheet, load rows
2533:
2534: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2535: $r->rflush();
2536:
2537: &updatesheet($asheet);
2538:
2539: $r->print("Updated rows, loading row data ...<br>\n");
2540: $r->rflush();
2541:
2542: &loadrows($asheet,$r);
2543:
2544: $r->print("Loaded row data, calculating sheet ...<br>\n");
2545: $r->rflush();
2546:
2547: my $calcoutput=&calcsheet($asheet);
2548: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2549:
2550: # ---------------------------------------------------- See if something to save
2551:
2552: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2553: my $fname='';
2554: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2555: $fname=~s/\W/\_/g;
2556: if ($fname eq 'default') { $fname='course_default'; }
2557: $fname.='_'.&gettype($asheet);
2558: &setfilename($asheet,$fname);
2559: $ENV{'form.ufn'}=$fname;
2560: $r->print('<p>Saving spreadsheet: '.
2561: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2562: }
2563: }
2564:
2565: # ------------------------------------------------ Write the modified worksheet
2566:
2567: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2568:
2569: &tmpwrite($asheet);
2570:
2571: if (&gettype($asheet) eq 'studentcalc') {
2572: $r->print('<br>Show rows with empty A column: ');
2573: } else {
2574: $r->print('<br>Show empty rows: ');
2575: }
2576:
2577: $r->print(&hiddenfield('userselhidden','true').
2578: '<input type=checkbox name=showall onClick="submit()"');
2579:
2580: if ($ENV{'form.showall'}) {
2581: $r->print(' checked');
2582: } else {
2583: unless ($ENV{'form.userselhidden'}) {
2584: unless
2585: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2586: $r->print(' checked');
2587: $ENV{'form.showall'}=1;
2588: }
2589: }
2590: }
2591: $r->print('>');
2592: if (&gettype($asheet) eq 'classcalc') {
2593: $r->print(
2594: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2595: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2596: $r->print('>');
2597: }
2598: # ------------------------------------------------------------- Print out sheet
2599:
2600: &outsheet($r,$asheet);
2601: $r->print('</form></body></html>');
2602:
2603: # ------------------------------------------------------------------------ Done
2604: } else {
2605: # ----------------------------- Not in a course, or not allowed to modify parms
2606: $ENV{'user.error.msg'}=
2607: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2608: return HTTP_NOT_ACCEPTABLE;
2609: }
2610: return OK;
2611:
2612: }
2613:
2614: 1;
2615: __END__
2616:
2617:
2618:
2619:
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