1: #
2: # $Id: lonspreadsheet.pm,v 1.80 2002/02/04 10:30:58 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:
1137: sub othersheets {
1138: my ($safeeval,$stype)=@_;
1139:
1140: my $cnum=&getcnum($safeeval);
1141: my $cdom=&getcdom($safeeval);
1142: my $chome=&getchome($safeeval);
1143:
1144: my @alternatives=();
1145: my $result=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.
1146: $stype.'_spreadsheets',$chome);
1147: if ($result!~/^error\:/) {
1148: foreach (split(/\&/,$result)) {
1149: $alternatives[$#alternatives+1]=
1150: &Apache::lonnet::unescape((split(/\=/,$_))[0]);
1151: }
1152: }
1153: return @alternatives;
1154: }
1155:
1156: #
1157: # -------------------------------------- Read spreadsheet formulas for a course
1158: #
1159:
1160: sub readsheet {
1161: my ($safeeval,$fn)=@_;
1162: my $stype=&gettype($safeeval);
1163: my $cnum=&getcnum($safeeval);
1164: my $cdom=&getcdom($safeeval);
1165: my $chome=&getchome($safeeval);
1166:
1167: # --------- There is no filename. Look for defaults in course and global, cache
1168:
1169: unless($fn) {
1170: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1171: $fn=&Apache::lonnet::reply('get:'.$cdom.':'.$cnum.
1172: ':environment:spreadsheet_default_'.$stype,
1173: $chome);
1174: unless (($fn) && ($fn!~/^error\:/)) {
1175: $fn='default_'.$stype;
1176: }
1177: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1178: }
1179: }
1180:
1181: # ---------------------------------------------------------- fn now has a value
1182:
1183: &setfilename($safeeval,$fn);
1184:
1185: # ------------------------------------------------------ see if sheet is cached
1186: my $fstring='';
1187: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1188: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1189: } else {
1190:
1191: # ---------------------------------------------------- Not cached, need to read
1192:
1193: my %f=();
1194:
1195: if ($fn=~/^default\_/) {
1196: my $sheetxml='';
1197: {
1198: my $fh;
1199: my $dfn=$fn;
1200: $dfn=~s/\_/\./g;
1201: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1202: $sheetxml=join('',<$fh>);
1203: } else {
1204: $sheetxml='<field row="0" col="A">"Error"</field>';
1205: }
1206: }
1207: my $parser=HTML::TokeParser->new(\$sheetxml);
1208: my $token;
1209: while ($token=$parser->get_token) {
1210: if ($token->[0] eq 'S') {
1211: if ($token->[1] eq 'field') {
1212: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1213: $parser->get_text('/field');
1214: }
1215: if ($token->[1] eq 'template') {
1216: $f{'template_'.$token->[2]->{'col'}}=
1217: $parser->get_text('/template');
1218: }
1219: }
1220: }
1221: } else {
1222: my $sheet='';
1223: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.$fn,
1224: $chome);
1225: unless ($reply=~/^error\:/) {
1226: $sheet=$reply;
1227: }
1228: foreach (split(/\&/,$sheet)) {
1229: my ($name,$value)=split(/\=/,$_);
1230: $f{&Apache::lonnet::unescape($name)}=
1231: &Apache::lonnet::unescape($value);
1232: }
1233: }
1234: # --------------------------------------------------------------- Cache and set
1235: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1236: &setformulas($safeeval,%f);
1237: }
1238: }
1239:
1240: # -------------------------------------------------------- Make new spreadsheet
1241:
1242: sub makenewsheet {
1243: my ($uname,$udom,$stype,$usymb)=@_;
1244: my $safeeval=initsheet($stype);
1245: $safeeval->reval(
1246: '$uname="'.$uname.
1247: '";$udom="'.$udom.
1248: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1249: '";$sheettype="'.$stype.
1250: '";$usymb="'.$usymb.
1251: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1252: $ENV{'request.course.id'}).
1253: '";$cid="'.$ENV{'request.course.id'}.
1254: '";$cfn="'.$ENV{'request.course.fn'}.
1255: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1256: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1257: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1258: return $safeeval;
1259: }
1260:
1261: # ------------------------------------------------------------ Save spreadsheet
1262:
1263: sub writesheet {
1264: my ($safeeval,$makedef)=@_;
1265: my $cid=&getcid($safeeval);
1266: if (&Apache::lonnet::allowed('opa',$cid)) {
1267: my %f=&getformulas($safeeval);
1268: my $stype=&gettype($safeeval);
1269: my $cnum=&getcnum($safeeval);
1270: my $cdom=&getcdom($safeeval);
1271: my $chome=&getchome($safeeval);
1272: my $fn=&getfilename($safeeval);
1273:
1274: # ------------------------------------------------------------- Cache new sheet
1275: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1276: # ----------------------------------------------------------------- Write sheet
1277: my $sheetdata='';
1278: foreach (keys(%f)) {
1279: unless ($f{$_} eq 'import') {
1280: $sheetdata.=&Apache::lonnet::escape($_).'='.
1281: &Apache::lonnet::escape($f{$_}).'&';
1282: }
1283: }
1284: $sheetdata=~s/\&$//;
1285: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1286: $sheetdata,$chome);
1287: if ($reply eq 'ok') {
1288: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1289: $stype.'_spreadsheets:'.
1290: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1291: $ENV{'user.domain'},
1292: $chome);
1293: if ($reply eq 'ok') {
1294: if ($makedef) {
1295: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1296: ':environment:spreadsheet_default_'.$stype.'='.
1297: &Apache::lonnet::escape($fn),
1298: $chome);
1299: } else {
1300: return $reply;
1301: }
1302: } else {
1303: return $reply;
1304: }
1305: } else {
1306: return $reply;
1307: }
1308: }
1309: return 'unauthorized';
1310: }
1311:
1312: # ----------------------------------------------- Make a temp copy of the sheet
1313: # "Modified workcopy" - interactive only
1314: #
1315:
1316: sub tmpwrite {
1317: my $safeeval=shift;
1318: my $fn=$ENV{'user.name'}.'_'.
1319: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1320: &getfilename($safeeval);
1321: $fn=~s/\W/\_/g;
1322: $fn=$tmpdir.$fn.'.tmp';
1323: my $fh;
1324: if ($fh=Apache::File->new('>'.$fn)) {
1325: print $fh join("\n",&getformulas($safeeval));
1326: }
1327: }
1328:
1329: # ---------------------------------------------------------- Read the temp copy
1330:
1331: sub tmpread {
1332: my ($safeeval,$nfield,$nform)=@_;
1333: my $fn=$ENV{'user.name'}.'_'.
1334: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1335: &getfilename($safeeval);
1336: $fn=~s/\W/\_/g;
1337: $fn=$tmpdir.$fn.'.tmp';
1338: my $fh;
1339: my %fo=();
1340: if ($fh=Apache::File->new($fn)) {
1341: my $name;
1342: while ($name=<$fh>) {
1343: chomp($name);
1344: my $value=<$fh>;
1345: chomp($value);
1346: $fo{$name}=$value;
1347: }
1348: }
1349: if ($nform eq 'changesheet') {
1350: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1351: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1352: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1353: }
1354: } else {
1355: if ($nfield) { $fo{$nfield}=$nform; }
1356: }
1357: &setformulas($safeeval,%fo);
1358: }
1359:
1360: # ================================================================== Parameters
1361: # -------------------------------------------- Figure out a cascading parameter
1362: #
1363: # For this function to work
1364: #
1365: # * parmhash needs to be tied
1366: # * courseopt and useropt need to be initialized for this user and course
1367: #
1368:
1369: sub parmval {
1370: my ($what,$safeeval)=@_;
1371: my $cid=&getcid($safeeval);
1372: my $csec=&getcsec($safeeval);
1373: my $uname=&getuname($safeeval);
1374: my $udom=&getudom($safeeval);
1375: my $symb=&getusymb($safeeval);
1376:
1377: unless ($symb) { return ''; }
1378: my $result='';
1379:
1380: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1381: # ----------------------------------------------------- Cascading lookup scheme
1382: my $rwhat=$what;
1383: $what=~s/^parameter\_//;
1384: $what=~s/\_([^\_]+)$/\.$1/;
1385:
1386: my $symbparm=$symb.'.'.$what;
1387: my $mapparm=$mapname.'___(all).'.$what;
1388: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1389:
1390: my $seclevel=
1391: $usercourseprefix.'.['.
1392: $csec.'].'.$what;
1393: my $seclevelr=
1394: $usercourseprefix.'.['.
1395: $csec.'].'.$symbparm;
1396: my $seclevelm=
1397: $usercourseprefix.'.['.
1398: $csec.'].'.$mapparm;
1399:
1400: my $courselevel=
1401: $usercourseprefix.'.'.$what;
1402: my $courselevelr=
1403: $usercourseprefix.'.'.$symbparm;
1404: my $courselevelm=
1405: $usercourseprefix.'.'.$mapparm;
1406:
1407: # ---------------------------------------------------------- fourth, check user
1408:
1409: if ($uname) {
1410:
1411: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1412:
1413: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1414:
1415: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1416:
1417: }
1418:
1419: # --------------------------------------------------------- third, check course
1420:
1421: if ($csec) {
1422:
1423: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1424:
1425: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1426:
1427: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1428:
1429: }
1430:
1431: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1432:
1433: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1434:
1435: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1436:
1437: # ----------------------------------------------------- second, check map parms
1438:
1439: my $thisparm=$parmhash{$symbparm};
1440: if ($thisparm) { return $thisparm; }
1441:
1442: # -------------------------------------------------------- first, check default
1443:
1444: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1445:
1446: }
1447:
1448: # ---------------------------------------------- Update rows for course listing
1449:
1450: sub updateclasssheet {
1451: my $safeeval=shift;
1452: my $cnum=&getcnum($safeeval);
1453: my $cdom=&getcdom($safeeval);
1454: my $cid=&getcid($safeeval);
1455: my $chome=&getchome($safeeval);
1456:
1457: # ---------------------------------------------- Read class list and row labels
1458:
1459: my $classlst=&Apache::lonnet::reply
1460: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1461: my %currentlist=();
1462: my $now=time;
1463: unless ($classlst=~/^error\:/) {
1464: foreach (split(/\&/,$classlst)) {
1465: my ($name,$value)=split(/\=/,$_);
1466: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1467: my $active=1;
1468: if (($end) && ($now>$end)) { $active=0; }
1469: if ($active) {
1470: my $rowlabel='';
1471: $name=&Apache::lonnet::unescape($name);
1472: my ($sname,$sdom)=split(/\:/,$name);
1473: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1474: if ($ssec==-1) {
1475: unless ($ENV{'form.showcsv'}) {
1476: $rowlabel='<font color=red>Data not available: '.$name.
1477: '</font>';
1478: } else {
1479: $rowlabel='ERROR","'.$name.
1480: '","Data not available","","","';
1481: }
1482: } else {
1483: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1484: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1485: ':environment:firstname&middlename&lastname&generation',
1486: &Apache::lonnet::homeserver($sname,$sdom));
1487: unless ($ENV{'form.showcsv'}) {
1488: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1489: '&udom='.$sdom.'">'.
1490: $ssec.' '.$reply{$sname}.'<br>';
1491: foreach ( split(/\&/,$reply)) {
1492: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1493: }
1494: $rowlabel.='</a>';
1495: } else {
1496: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1497: my $ncount=0;
1498: foreach (split(/\&/,$reply)) {
1499: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1500: $ncount++;
1501: }
1502: unless ($ncount==4) { $rowlabel.=',""'; }
1503: $rowlabel=~s/\"$//;
1504: }
1505: }
1506: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1507: }
1508: } # end of foreach (split(/\&/,$classlst))
1509: #
1510: # -------------------- Find discrepancies between the course row table and this
1511: #
1512: my %f=&getformulas($safeeval);
1513: my $changed=0;
1514:
1515: my $maxrow=0;
1516: my %existing=();
1517:
1518: # ----------------------------------------------------------- Now obsolete rows
1519: foreach (keys(%f)) {
1520: if ($_=~/^A(\d+)/) {
1521: $maxrow=($1>$maxrow)?$1:$maxrow;
1522: $existing{$f{$_}}=1;
1523: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1524: $f{$_}='!!! Obsolete';
1525: $changed=1;
1526: }
1527: }
1528: }
1529:
1530: # -------------------------------------------------------- New and unknown keys
1531:
1532: foreach (sort keys(%currentlist)) {
1533: unless ($existing{$_}) {
1534: $changed=1;
1535: $maxrow++;
1536: $f{'A'.$maxrow}=$_;
1537: }
1538: }
1539:
1540: if ($changed) { &setformulas($safeeval,%f); }
1541:
1542: &setmaxrow($safeeval,$maxrow);
1543: &setrowlabels($safeeval,%currentlist);
1544:
1545: } else {
1546: return 'Could not access course data';
1547: }
1548: }
1549:
1550: # ----------------------------------- Update rows for student and assess sheets
1551:
1552: sub updatestudentassesssheet {
1553: my $safeeval=shift;
1554: my %bighash;
1555: my $stype=&gettype($safeeval);
1556: my %current=();
1557: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1558: # -------------------------------------------------------------------- Tie hash
1559: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1560: &GDBM_READER,0640)) {
1561: # --------------------------------------------------------- Get all assessments
1562:
1563: my %allkeys=('timestamp' =>
1564: 'Timestamp of Last Transaction<br>timestamp',
1565: 'subnumber' =>
1566: 'Number of Submissions<br>subnumber',
1567: 'tutornumber' =>
1568: 'Number of Tutor Responses<br>tutornumber',
1569: 'totalpoints' =>
1570: 'Total Points Granted<br>totalpoints');
1571:
1572: my $adduserstr='';
1573: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1574: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1575: $adduserstr='&uname='.&getuname($safeeval).
1576: '&udom='.&getudom($safeeval);
1577: }
1578:
1579: my %allassess=('_feedback' =>
1580: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1581: '">Feedback</a>',
1582: '_evaluation' =>
1583: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1584: '">Evaluation</a>',
1585: '_tutoring' =>
1586: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1587: '">Tutoring</a>',
1588: '_discussion' =>
1589: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1590: '">Discussion</a>'
1591: );
1592:
1593: foreach (keys(%bighash)) {
1594: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1595: my $mapid=$1;
1596: my $resid=$2;
1597: my $id=$mapid.'.'.$resid;
1598: my $srcf=$bighash{$_};
1599: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1600: my $symb=
1601: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1602: '___'.$resid.'___'.
1603: &Apache::lonnet::declutter($srcf);
1604: $allassess{$symb}=
1605: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1606: $bighash{'title_'.$id}.'</a>';
1607: if ($stype eq 'assesscalc') {
1608: foreach (split(/\,/,
1609: &Apache::lonnet::metadata($srcf,'keys'))) {
1610: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1611: my $key=$_;
1612: my $display=
1613: &Apache::lonnet::metadata($srcf,$key.'.display');
1614: unless ($display) {
1615: $display.=
1616: &Apache::lonnet::metadata($srcf,$key.'.name');
1617: }
1618: $display.='<br>'.$key;
1619: $allkeys{$key}=$display;
1620: }
1621: } # end of foreach
1622: }
1623: }
1624: }
1625: } # end of foreach (keys(%bighash))
1626: untie(%bighash);
1627:
1628: #
1629: # %allkeys has a list of storage and parameter displays by unikey
1630: # %allassess has a list of all resource displays by symb
1631: #
1632:
1633: if ($stype eq 'assesscalc') {
1634: %current=%allkeys;
1635: } elsif ($stype eq 'studentcalc') {
1636: %current=%allassess;
1637: }
1638: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1639: join('___;___',%current);
1640: } else {
1641: return 'Could not access course data';
1642: }
1643: # ------------------------------------------------------ Get current from cache
1644: } else {
1645: %current=split(/\_\_\_\;\_\_\_/,
1646: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1647: }
1648: # -------------------- Find discrepancies between the course row table and this
1649: #
1650: my %f=&getformulas($safeeval);
1651: my $changed=0;
1652:
1653: my $maxrow=0;
1654: my %existing=();
1655:
1656: # ----------------------------------------------------------- Now obsolete rows
1657: foreach (keys(%f)) {
1658: if ($_=~/^A(\d+)/) {
1659: $maxrow=($1>$maxrow)?$1:$maxrow;
1660: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1661: $existing{$usy}=1;
1662: unless ((defined($current{$usy})) || (!$1)) {
1663: $f{$_}='!!! Obsolete';
1664: $changed=1;
1665: } elsif ($ufn) {
1666: $current{$usy}
1667: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1668: }
1669: }
1670: }
1671:
1672: # -------------------------------------------------------- New and unknown keys
1673:
1674: foreach (keys(%current)) {
1675: unless ($existing{$_}) {
1676: $changed=1;
1677: $maxrow++;
1678: $f{'A'.$maxrow}=$_;
1679: }
1680: }
1681:
1682: if ($changed) { &setformulas($safeeval,%f); }
1683:
1684: &setmaxrow($safeeval,$maxrow);
1685: &setrowlabels($safeeval,%current);
1686:
1687: undef %current;
1688: undef %existing;
1689: }
1690:
1691: # ------------------------------------------------ Load data for one assessment
1692:
1693: sub loadstudent {
1694: my $safeeval=shift;
1695: my %c=();
1696: my %f=&getformulas($safeeval);
1697: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1698: %cachedstores=();
1699: {
1700: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1701: &getuname($safeeval).':'.
1702: &getcid($safeeval),
1703: &getuhome($safeeval));
1704: unless ($reply=~/^error\:/) {
1705: foreach ( split(/\&/,$reply)) {
1706: my ($name,$value)=split(/\=/,$_);
1707: $cachedstores{&Apache::lonnet::unescape($name)}=
1708: &Apache::lonnet::unescape($value);
1709: }
1710: }
1711: }
1712: my @assessdata=();
1713: foreach (keys(%f)) {
1714: if ($_=~/^A(\d+)/) {
1715: my $row=$1;
1716: unless (($f{$_}=~/^\!/) || ($row==0)) {
1717: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1718: @assessdata=&exportsheet(&getuname($safeeval),
1719: &getudom($safeeval),
1720: 'assesscalc',$usy,$ufn);
1721: my $index=0;
1722: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1723: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1724: if ($assessdata[$index]) {
1725: my $col=$_;
1726: if ($assessdata[$index]=~/\D/) {
1727: $c{$col.$row}="'".$assessdata[$index]."'";
1728: } else {
1729: $c{$col.$row}=$assessdata[$index];
1730: }
1731: unless ($col eq 'A') {
1732: $f{$col.$row}='import';
1733: }
1734: }
1735: $index++;
1736: }
1737: }
1738: }
1739: }
1740: $cachedassess='';
1741: undef %cachedstores;
1742: &setformulas($safeeval,%f);
1743: &setconstants($safeeval,%c);
1744: }
1745:
1746: # --------------------------------------------------- Load data for one student
1747:
1748: sub loadcourse {
1749: my ($safeeval,$r)=@_;
1750: my %c=();
1751: my %f=&getformulas($safeeval);
1752: my $total=0;
1753: foreach (keys(%f)) {
1754: if ($_=~/^A(\d+)/) {
1755: unless ($f{$_}=~/^\!/) { $total++; }
1756: }
1757: }
1758: my $now=0;
1759: my $since=time;
1760: $r->print(<<ENDPOP);
1761: <script>
1762: popwin=open('','popwin','width=400,height=100');
1763: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1764: '<h3>Spreadsheet Calculation Progress</h3>'+
1765: '<form name=popremain>'+
1766: '<input type=text size=35 name=remaining value=Starting></form>'+
1767: '</body></html>');
1768: popwin.document.close();
1769: </script>
1770: ENDPOP
1771: $r->rflush();
1772: foreach (keys(%f)) {
1773: if ($_=~/^A(\d+)/) {
1774: my $row=$1;
1775: unless (($f{$_}=~/^\!/) || ($row==0)) {
1776: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1777: 'studentcalc');
1778: undef %userrdatas;
1779: $now++;
1780: $r->print('<script>popwin.document.popremain.remaining.value="'.
1781: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1782: ' secs remaining";</script>');
1783: $r->rflush();
1784:
1785: my $index=0;
1786: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1787: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1788: if ($studentdata[$index]) {
1789: my $col=$_;
1790: if ($studentdata[$index]=~/\D/) {
1791: $c{$col.$row}="'".$studentdata[$index]."'";
1792: } else {
1793: $c{$col.$row}=$studentdata[$index];
1794: }
1795: unless ($col eq 'A') {
1796: $f{$col.$row}='import';
1797: }
1798: }
1799: $index++;
1800: }
1801: }
1802: }
1803: }
1804: &setformulas($safeeval,%f);
1805: &setconstants($safeeval,%c);
1806: $r->print('<script>popwin.close()</script>');
1807: $r->rflush();
1808: }
1809:
1810: # ------------------------------------------------ Load data for one assessment
1811:
1812: sub loadassessment {
1813: my $safeeval=shift;
1814:
1815: my $uhome=&getuhome($safeeval);
1816: my $uname=&getuname($safeeval);
1817: my $udom=&getudom($safeeval);
1818: my $symb=&getusymb($safeeval);
1819: my $cid=&getcid($safeeval);
1820: my $cnum=&getcnum($safeeval);
1821: my $cdom=&getcdom($safeeval);
1822: my $chome=&getchome($safeeval);
1823:
1824: my $namespace;
1825: unless ($namespace=$cid) { return ''; }
1826:
1827: # ----------------------------------------------------------- Get stored values
1828:
1829: my %returnhash=();
1830:
1831: if ($cachedassess eq $uname.':'.$udom) {
1832: #
1833: # get data out of the dumped stores
1834: #
1835:
1836: my $version=$cachedstores{'version:'.$symb};
1837: my $scope;
1838: for ($scope=1;$scope<=$version;$scope++) {
1839: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1840: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1841: }
1842: }
1843:
1844: } else {
1845: #
1846: # restore individual
1847: #
1848:
1849: my $answer=&Apache::lonnet::reply(
1850: "restore:$udom:$uname:".
1851: &Apache::lonnet::escape($namespace).":".
1852: &Apache::lonnet::escape($symb),$uhome);
1853: foreach (split(/\&/,$answer)) {
1854: my ($name,$value)=split(/\=/,$_);
1855: $returnhash{&Apache::lonnet::unescape($name)}=
1856: &Apache::lonnet::unescape($value);
1857: }
1858: my $version;
1859: for ($version=1;$version<=$returnhash{'version'};$version++) {
1860: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1861: $returnhash{$_}=$returnhash{$version.':'.$_};
1862: }
1863: }
1864: }
1865: # ----------------------------- returnhash now has all stores for this resource
1866:
1867: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1868:
1869: my @oldkeys=keys %returnhash;
1870:
1871: foreach (@oldkeys) {
1872: my $name=$_;
1873: my $value=$returnhash{$_};
1874: delete $returnhash{$_};
1875: $name=~s/\_/\./g;
1876: $returnhash{$name}=$value;
1877: }
1878:
1879: # ---------------------------- initialize coursedata and userdata for this user
1880: undef %courseopt;
1881: undef %useropt;
1882:
1883: my $userprefix=$uname.'_'.$udom.'_';
1884:
1885: unless ($uhome eq 'no_host') {
1886: # -------------------------------------------------------------- Get coursedata
1887: unless
1888: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1889: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1890: ':resourcedata',$chome);
1891: if ($reply!~/^error\:/) {
1892: $courserdatas{$cid}=$reply;
1893: $courserdatas{$cid.'.last_cache'}=time;
1894: }
1895: }
1896: foreach (split(/\&/,$courserdatas{$cid})) {
1897: my ($name,$value)=split(/\=/,$_);
1898: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1899: &Apache::lonnet::unescape($value);
1900: }
1901: # --------------------------------------------------- Get userdata (if present)
1902: unless
1903: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1904: my $reply=
1905: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1906: if ($reply!~/^error\:/) {
1907: $userrdatas{$uname.'___'.$udom}=$reply;
1908: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1909: }
1910: }
1911: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
1912: my ($name,$value)=split(/\=/,$_);
1913: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1914: &Apache::lonnet::unescape($value);
1915: }
1916: }
1917: # ----------------- now courseopt, useropt initialized for this user and course
1918: # (used by parmval)
1919:
1920: #
1921: # Load keys for this assessment only
1922: #
1923: my %thisassess=();
1924: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1925:
1926: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
1927: $thisassess{$_}=1;
1928: }
1929: #
1930: # Load parameters
1931: #
1932: my %c=();
1933:
1934: if (tie(%parmhash,'GDBM_File',
1935: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1936: my %f=&getformulas($safeeval);
1937: foreach (keys(%f)) {
1938: if ($_=~/^A/) {
1939: unless ($f{$_}=~/^\!/) {
1940: if ($f{$_}=~/^parameter/) {
1941: if ($thisassess{$f{$_}}) {
1942: my $val=&parmval($f{$_},$safeeval);
1943: $c{$_}=$val;
1944: $c{$f{$_}}=$val;
1945: }
1946: } else {
1947: my $key=$f{$_};
1948: my $ckey=$key;
1949: $key=~s/^stores\_/resource\./;
1950: $key=~s/\_/\./g;
1951: $c{$_}=$returnhash{$key};
1952: $c{$ckey}=$returnhash{$key};
1953: }
1954: }
1955: }
1956: }
1957: untie(%parmhash);
1958: }
1959: &setconstants($safeeval,%c);
1960: }
1961:
1962: # --------------------------------------------------------- Various form fields
1963:
1964: sub textfield {
1965: my ($title,$name,$value)=@_;
1966: return "\n<p><b>$title:</b><br>".
1967: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1968: }
1969:
1970: sub hiddenfield {
1971: my ($name,$value)=@_;
1972: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
1973: }
1974:
1975: sub selectbox {
1976: my ($title,$name,$value,%options)=@_;
1977: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
1978: foreach (sort keys(%options)) {
1979: $selout.='<option value="'.$_.'"';
1980: if ($_ eq $value) { $selout.=' selected'; }
1981: $selout.='>'.$options{$_}.'</option>';
1982: }
1983: return $selout.'</select>';
1984: }
1985:
1986: # =============================================== Update information in a sheet
1987: #
1988: # Add new users or assessments, etc.
1989: #
1990:
1991: sub updatesheet {
1992: my $safeeval=shift;
1993: my $stype=&gettype($safeeval);
1994: if ($stype eq 'classcalc') {
1995: return &updateclasssheet($safeeval);
1996: } else {
1997: return &updatestudentassesssheet($safeeval);
1998: }
1999: }
2000:
2001: # =================================================== Load the rows for a sheet
2002: #
2003: # Import the data for rows
2004: #
2005:
2006: sub loadrows {
2007: my ($safeeval,$r)=@_;
2008: my $stype=&gettype($safeeval);
2009: if ($stype eq 'classcalc') {
2010: &loadcourse($safeeval,$r);
2011: } elsif ($stype eq 'studentcalc') {
2012: &loadstudent($safeeval);
2013: } else {
2014: &loadassessment($safeeval);
2015: }
2016: }
2017:
2018: # ======================================================= Forced recalculation?
2019:
2020: sub checkthis {
2021: my ($keyname,$time)=@_;
2022: return ($time<$expiredates{$keyname});
2023: }
2024: sub forcedrecalc {
2025: my ($uname,$udom,$stype,$usymb)=@_;
2026: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2027: my $time=$oldsheets{$key.'.time'};
2028: if ($ENV{'form.forcerecalc'}) { return 1; }
2029: unless ($time) { return 1; }
2030: if ($stype eq 'assesscalc') {
2031: my $map=(split(/\_\_\_/,$usymb))[0];
2032: if (&checkthis('::assesscalc:',$time) ||
2033: &checkthis('::assesscalc:'.$map,$time) ||
2034: &checkthis('::assesscalc:'.$usymb,$time) ||
2035: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2036: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2037: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2038: return 1;
2039: }
2040: } else {
2041: if (&checkthis('::studentcalc:',$time) ||
2042: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2043: return 1;
2044: }
2045: }
2046: return 0;
2047: }
2048:
2049: # ============================================================== Export handler
2050: #
2051: # Non-interactive call from with program
2052: #
2053:
2054: sub exportsheet {
2055: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2056: my @exportarr=();
2057:
2058: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2059: $fn='default_'.$1;
2060: }
2061:
2062: #
2063: # Check if cached
2064: #
2065:
2066: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2067: my $found='';
2068:
2069: if ($oldsheets{$key}) {
2070: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2071: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2072: if ($name eq $fn) {
2073: $found=$value;
2074: }
2075: }
2076: }
2077:
2078: unless ($found) {
2079: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2080: if ($oldsheets{$key}) {
2081: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2082: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2083: if ($name eq $fn) {
2084: $found=$value;
2085: }
2086: }
2087: }
2088: }
2089: #
2090: # Check if still valid
2091: #
2092: if ($found) {
2093: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2094: $found='';
2095: }
2096: }
2097:
2098: if ($found) {
2099: #
2100: # Return what was cached
2101: #
2102: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2103:
2104: } else {
2105: #
2106: # Not cached
2107: #
2108:
2109: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2110: &readsheet($thissheet,$fn);
2111: &updatesheet($thissheet);
2112: &loadrows($thissheet);
2113: &calcsheet($thissheet);
2114: @exportarr=&exportdata($thissheet);
2115: #
2116: # Store now
2117: #
2118: my $cid=$ENV{'request.course.id'};
2119: my $current='';
2120: if ($stype eq 'studentcalc') {
2121: $current=&Apache::lonnet::reply('get:'.
2122: $ENV{'course.'.$cid.'.domain'}.':'.
2123: $ENV{'course.'.$cid.'.num'}.
2124: ':nohist_calculatedsheets:'.
2125: &Apache::lonnet::escape($key),
2126: $ENV{'course.'.$cid.'.home'});
2127: } else {
2128: $current=&Apache::lonnet::reply('get:'.
2129: &getudom($thissheet).':'.
2130: &getuname($thissheet).
2131: ':nohist_calculatedsheets_'.
2132: $ENV{'request.course.id'}.':'.
2133: &Apache::lonnet::escape($key),
2134: &getuhome($thissheet));
2135:
2136: }
2137: my %currentlystored=();
2138: unless ($current=~/^error\:/) {
2139: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2140: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2141: $currentlystored{$name}=$value;
2142: }
2143: }
2144: $currentlystored{$fn}=join('___;___',@exportarr);
2145:
2146: my $newstore='';
2147: foreach (keys(%currentlystored)) {
2148: if ($newstore) { $newstore.='___&___'; }
2149: $newstore.=$_.'___=___'.$currentlystored{$_};
2150: }
2151: my $now=time;
2152: if ($stype eq 'studentcalc') {
2153: &Apache::lonnet::reply('put:'.
2154: $ENV{'course.'.$cid.'.domain'}.':'.
2155: $ENV{'course.'.$cid.'.num'}.
2156: ':nohist_calculatedsheets:'.
2157: &Apache::lonnet::escape($key).'='.
2158: &Apache::lonnet::escape($newstore).'&'.
2159: &Apache::lonnet::escape($key).'.time='.$now,
2160: $ENV{'course.'.$cid.'.home'});
2161: } else {
2162: &Apache::lonnet::reply('put:'.
2163: &getudom($thissheet).':'.
2164: &getuname($thissheet).
2165: ':nohist_calculatedsheets_'.
2166: $ENV{'request.course.id'}.':'.
2167: &Apache::lonnet::escape($key).'='.
2168: &Apache::lonnet::escape($newstore).'&'.
2169: &Apache::lonnet::escape($key).'.time='.$now,
2170: &getuhome($thissheet));
2171: }
2172: }
2173: return @exportarr;
2174: }
2175: # ============================================================ Expiration Dates
2176: #
2177: # Load previously cached student spreadsheets for this course
2178: #
2179:
2180: sub expirationdates {
2181: undef %expiredates;
2182: my $cid=$ENV{'request.course.id'};
2183: my $reply=&Apache::lonnet::reply('dump:'.
2184: $ENV{'course.'.$cid.'.domain'}.':'.
2185: $ENV{'course.'.$cid.'.num'}.
2186: ':nohist_expirationdates',
2187: $ENV{'course.'.$cid.'.home'});
2188: unless ($reply=~/^error\:/) {
2189: foreach (split(/\&/,$reply)) {
2190: my ($name,$value)=split(/\=/,$_);
2191: $expiredates{&Apache::lonnet::unescape($name)}
2192: =&Apache::lonnet::unescape($value);
2193: }
2194: }
2195: }
2196:
2197: # ===================================================== Calculated sheets cache
2198: #
2199: # Load previously cached student spreadsheets for this course
2200: #
2201:
2202: sub cachedcsheets {
2203: my $cid=$ENV{'request.course.id'};
2204: my $reply=&Apache::lonnet::reply('dump:'.
2205: $ENV{'course.'.$cid.'.domain'}.':'.
2206: $ENV{'course.'.$cid.'.num'}.
2207: ':nohist_calculatedsheets',
2208: $ENV{'course.'.$cid.'.home'});
2209: unless ($reply=~/^error\:/) {
2210: foreach ( split(/\&/,$reply)) {
2211: my ($name,$value)=split(/\=/,$_);
2212: $oldsheets{&Apache::lonnet::unescape($name)}
2213: =&Apache::lonnet::unescape($value);
2214: }
2215: }
2216: }
2217:
2218: # ===================================================== Calculated sheets cache
2219: #
2220: # Load previously cached assessment spreadsheets for this student
2221: #
2222:
2223: sub cachedssheets {
2224: my ($sname,$sdom,$shome)=@_;
2225: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2226: my $cid=$ENV{'request.course.id'};
2227: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2228: ':nohist_calculatedsheets_'.
2229: $ENV{'request.course.id'},
2230: $shome);
2231: unless ($reply=~/^error\:/) {
2232: foreach ( split(/\&/,$reply)) {
2233: my ($name,$value)=split(/\=/,$_);
2234: $oldsheets{&Apache::lonnet::unescape($name)}
2235: =&Apache::lonnet::unescape($value);
2236: }
2237: }
2238: $loadedcaches{$sname.'_'.$sdom}=1;
2239: }
2240: }
2241:
2242: # ===================================================== Calculated sheets cache
2243: #
2244: # Load previously cached assessment spreadsheets for this student
2245: #
2246:
2247: # ================================================================ Main handler
2248: #
2249: # Interactive call to screen
2250: #
2251: #
2252:
2253:
2254: sub handler {
2255: my $r=shift;
2256:
2257: if ($r->header_only) {
2258: $r->content_type('text/html');
2259: $r->send_http_header;
2260: return OK;
2261: }
2262:
2263: # ---------------------------------------------------- Global directory configs
2264:
2265: $includedir=$r->dir_config('lonIncludes');
2266: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2267:
2268: # ----------------------------------------------------- Needs to be in a course
2269:
2270: if ($ENV{'request.course.fn'}) {
2271:
2272: # --------------------------- Get query string for limited number of parameters
2273:
2274: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
2275: my ($name, $value) = split(/=/,$_);
2276: $value =~ tr/+/ /;
2277: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2278: if (($name eq 'uname') || ($name eq 'udom') ||
2279: ($name eq 'usymb') || ($name eq 'ufn')) {
2280: unless ($ENV{'form.'.$name}) {
2281: $ENV{'form.'.$name}=$value;
2282: }
2283: }
2284: }
2285:
2286: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2287: $ENV{'form.ufn'}='default_'.$1;
2288: }
2289:
2290: # -------------------------------------- Interactive loading of specific sheet?
2291: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2292: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2293: }
2294: # ------------------------------------------- Nothing there? Must be login user
2295:
2296: my $aname;
2297: my $adom;
2298:
2299: unless ($ENV{'form.uname'}) {
2300: $aname=$ENV{'user.name'};
2301: $adom=$ENV{'user.domain'};
2302: } else {
2303: $aname=$ENV{'form.uname'};
2304: $adom=$ENV{'form.udom'};
2305: }
2306:
2307: # ------------------------------------------------------------------- Open page
2308:
2309: $r->content_type('text/html');
2310: $r->header_out('Cache-control','no-cache');
2311: $r->header_out('Pragma','no-cache');
2312: $r->send_http_header;
2313:
2314: # --------------------------------------------------------------- Screen output
2315:
2316: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2317: $r->print(<<ENDSCRIPT);
2318: <script language="JavaScript">
2319:
2320: function celledit(cn,cf) {
2321: var cnf=prompt(cn,cf);
2322: if (cnf!=null) {
2323: document.sheet.unewfield.value=cn;
2324: document.sheet.unewformula.value=cnf;
2325: document.sheet.submit();
2326: }
2327: }
2328:
2329: function changesheet(cn) {
2330: document.sheet.unewfield.value=cn;
2331: document.sheet.unewformula.value='changesheet';
2332: document.sheet.submit();
2333: }
2334:
2335: </script>
2336: ENDSCRIPT
2337: $r->print('</head><body bgcolor="#FFFFFF">'.
2338: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2339: '<h1>LON-CAPA Spreadsheet</h1>'.
2340: '<form action="'.$r->uri.'" name=sheet method=post>'.
2341: &hiddenfield('uname',$ENV{'form.uname'}).
2342: &hiddenfield('udom',$ENV{'form.udom'}).
2343: &hiddenfield('usymb',$ENV{'form.usymb'}).
2344: &hiddenfield('unewfield','').
2345: &hiddenfield('unewformula',''));
2346:
2347: # ---------------------- Make sure that this gets out, even if user hits "stop"
2348:
2349: $r->rflush();
2350:
2351: # ---------------------------------------------------------------- Full recalc?
2352:
2353:
2354: if ($ENV{'form.forcerecalc'}) {
2355: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2356: undef %spreadsheets;
2357: undef %courserdatas;
2358: undef %userrdatas;
2359: undef %defaultsheets;
2360: undef %updatedata;
2361: }
2362:
2363: # ---------------------------------------- Read new sheet or modified worksheet
2364:
2365: $r->uri=~/\/(\w+)$/;
2366:
2367: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2368:
2369: # ------------------------ If a new formula had been entered, go from work copy
2370:
2371: if ($ENV{'form.unewfield'}) {
2372: $r->print('<h2>Modified Workcopy</h2>');
2373: $ENV{'form.unewformula'}=~s/\'/\"/g;
2374: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2375: $ENV{'form.unewformula'}.'<p>');
2376: &setfilename($asheet,$ENV{'form.ufn'});
2377: &tmpread($asheet,
2378: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2379:
2380: } elsif ($ENV{'form.saveas'}) {
2381: &setfilename($asheet,$ENV{'form.ufn'});
2382: &tmpread($asheet);
2383: } else {
2384: &readsheet($asheet,$ENV{'form.ufn'});
2385: }
2386:
2387: # -------------------------------------------------- Print out user information
2388:
2389: unless (&gettype($asheet) eq 'classcalc') {
2390: $r->print('<p><b>User:</b> '.&getuname($asheet).
2391: '<br><b>Domain:</b> '.&getudom($asheet));
2392: if (&getcsec($asheet) eq '-1') {
2393: $r->print('<h3><font color=red>'.
2394: 'Not a student in this course</font></h3>');
2395: } else {
2396: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2397: }
2398: if ($ENV{'form.usymb'}) {
2399: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2400: }
2401: }
2402:
2403: # ---------------------------------------------------------------- Course title
2404:
2405: $r->print('<h1>'.
2406: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2407: '</h1><h3>'.localtime().'</h3>');
2408:
2409: # ---------------------------------------------------- See if user can see this
2410:
2411: if ((&gettype($asheet) eq 'classcalc') ||
2412: (&getuname($asheet) ne $ENV{'user.name'}) ||
2413: (&getudom($asheet) ne $ENV{'user.domain'})) {
2414: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2415: $r->print(
2416: '<h1>Access Permission Denied</h1></form></body></html>');
2417: return OK;
2418: }
2419: }
2420:
2421: # ---------------------------------------------------------- Additional options
2422:
2423: $r->print(
2424: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2425: );
2426: if (&gettype($asheet) eq 'assesscalc') {
2427: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2428: &getuname($asheet).
2429: '&udom='.&getudom($asheet).
2430: '">Level up: Student Sheet</a></font><p>');
2431: }
2432:
2433: if ((&gettype($asheet) eq 'studentcalc') &&
2434: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2435: $r->print (
2436: '<p><font size=+2><a href="/adm/classcalc">'.
2437: 'Level up: Course Sheet</a></font><p>');
2438: }
2439:
2440:
2441: # ----------------------------------------------------------------- Save dialog
2442:
2443:
2444: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2445: my $fname=$ENV{'form.ufn'};
2446: $fname=~s/\_[^\_]+$//;
2447: if ($fname eq 'default') { $fname='course_default'; }
2448: $r->print('<input type=submit name=saveas value="Save as ...">'.
2449: '<input type=text size=20 name=newfn value="'.$fname.
2450: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2451: }
2452:
2453: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2454:
2455: # ----------------------------------------------------------------- Load dialog
2456: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2457: $r->print('<p><input type=submit name=load value="Load ...">'.
2458: '<select name="loadthissheet">'.
2459: '<option name="default">Default</option>');
2460: foreach (&othersheets($asheet,&gettype($asheet))) {
2461: $r->print('<option name="'.$_.'"');
2462: if ($ENV{'form.ufn'} eq $_) {
2463: $r->print(' selected');
2464: }
2465: $r->print('>'.$_.'</option>');
2466: }
2467: $r->print('</select><p>');
2468: if (&gettype($asheet) eq 'studentcalc') {
2469: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2470: }
2471: }
2472:
2473: # --------------------------------------------------------------- Cached sheets
2474:
2475: &expirationdates();
2476:
2477: undef %oldsheets;
2478: undef %loadedcaches;
2479:
2480: if (&gettype($asheet) eq 'classcalc') {
2481: $r->print("Loading previously calculated student sheets ...<br>\n");
2482: $r->rflush();
2483: &cachedcsheets();
2484: } elsif (&gettype($asheet) eq 'studentcalc') {
2485: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2486: $r->rflush();
2487: &cachedssheets(&getuname($asheet),&getudom($asheet),
2488: &getuhome($asheet));
2489: }
2490:
2491: # ----------------------------------------------------- Update sheet, load rows
2492:
2493: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2494: $r->rflush();
2495:
2496: &updatesheet($asheet);
2497:
2498: $r->print("Updated rows, loading row data ...<br>\n");
2499: $r->rflush();
2500:
2501: &loadrows($asheet,$r);
2502:
2503: $r->print("Loaded row data, calculating sheet ...<br>\n");
2504: $r->rflush();
2505:
2506: my $calcoutput=&calcsheet($asheet);
2507: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2508:
2509: # ---------------------------------------------------- See if something to save
2510:
2511: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2512: my $fname='';
2513: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2514: $fname=~s/\W/\_/g;
2515: if ($fname eq 'default') { $fname='course_default'; }
2516: $fname.='_'.&gettype($asheet);
2517: &setfilename($asheet,$fname);
2518: $ENV{'form.ufn'}=$fname;
2519: $r->print('<p>Saving spreadsheet: '.
2520: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2521: }
2522: }
2523:
2524: # ------------------------------------------------ Write the modified worksheet
2525:
2526: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2527:
2528: &tmpwrite($asheet);
2529:
2530: if (&gettype($asheet) eq 'studentcalc') {
2531: $r->print('<br>Show rows with empty A column: ');
2532: } else {
2533: $r->print('<br>Show empty rows: ');
2534: }
2535:
2536: $r->print(&hiddenfield('userselhidden','true').
2537: '<input type=checkbox name=showall onClick="submit()"');
2538:
2539: if ($ENV{'form.showall'}) {
2540: $r->print(' checked');
2541: } else {
2542: unless ($ENV{'form.userselhidden'}) {
2543: unless
2544: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2545: $r->print(' checked');
2546: $ENV{'form.showall'}=1;
2547: }
2548: }
2549: }
2550: $r->print('>');
2551: if (&gettype($asheet) eq 'classcalc') {
2552: $r->print(
2553: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2554: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2555: $r->print('>');
2556: }
2557: # ------------------------------------------------------------- Print out sheet
2558:
2559: &outsheet($r,$asheet);
2560: $r->print('</form></body></html>');
2561:
2562: # ------------------------------------------------------------------------ Done
2563: } else {
2564: # ----------------------------- Not in a course, or not allowed to modify parms
2565: $ENV{'user.error.msg'}=
2566: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2567: return HTTP_NOT_ACCEPTABLE;
2568: }
2569: return OK;
2570:
2571: }
2572:
2573: 1;
2574: __END__
2575:
2576:
2577:
2578:
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