1: #
2: # $Id: lonspreadsheet.pm,v 1.83 2002/04/10 15:30:13 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: $fm=~s/[\'\"]/\&\#34;/g;
777: push(@cols,"'$_$n','$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($fn)) {
1193: # There is no filename. Look for defaults in course and global, cache
1194: unless ($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}=$fn;
1205: }
1206: }
1207:
1208: # ---------------------------------------------------------- fn now has a value
1209:
1210: &setfilename($safeeval,$fn);
1211:
1212: # ------------------------------------------------------ see if sheet is cached
1213: my $fstring='';
1214: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1215: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1216: } else {
1217:
1218: # ---------------------------------------------------- Not cached, need to read
1219:
1220: my %f=();
1221:
1222: if ($fn=~/^default\_/) {
1223: my $sheetxml='';
1224: my $fh;
1225: my $dfn=$fn;
1226: $dfn=~s/\_/\./g;
1227: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1228: $sheetxml=join('',<$fh>);
1229: } else {
1230: $sheetxml='<field row="0" col="A">"Error"</field>';
1231: }
1232: %f=%{&parse_sheet(\$sheetxml)};
1233: } elsif($fn=~/\/*\.spreadsheet$/) {
1234: my $sheetxml=&Apache::lonnet::getfile
1235: (&Apache::lonnet::filelocation('',$fn));
1236: print "<pre>$sheetxml</pre>";
1237: if ($sheetxml == -1) {
1238: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1239: .$fn.'"</field>';
1240: }
1241: %f=%{&parse_sheet(\$sheetxml)};
1242: print "<pre>";
1243: foreach (sort( keys(%f))) {
1244: print "$_ = $f{$_}\n";
1245: }
1246: print "</pre>";
1247: } else {
1248: my $sheet='';
1249: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1250: my ($tmp) = keys(%tmphash);
1251: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1252: foreach (keys(%tmphash)) {
1253: $f{$_}=$tmphash{$_};
1254: }
1255: }
1256: }
1257: # --------------------------------------------------------------- Cache and set
1258: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1259: &setformulas($safeeval,%f);
1260: }
1261: }
1262:
1263: # -------------------------------------------------------- Make new spreadsheet
1264:
1265: sub makenewsheet {
1266: my ($uname,$udom,$stype,$usymb)=@_;
1267: my $safeeval=initsheet($stype);
1268: $safeeval->reval(
1269: '$uname="'.$uname.
1270: '";$udom="'.$udom.
1271: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
1272: '";$sheettype="'.$stype.
1273: '";$usymb="'.$usymb.
1274: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
1275: $ENV{'request.course.id'}).
1276: '";$cid="'.$ENV{'request.course.id'}.
1277: '";$cfn="'.$ENV{'request.course.fn'}.
1278: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1279: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1280: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
1281: return $safeeval;
1282: }
1283:
1284: # ------------------------------------------------------------ Save spreadsheet
1285:
1286: sub writesheet {
1287: my ($safeeval,$makedef)=@_;
1288: my $cid=&getcid($safeeval);
1289: if (&Apache::lonnet::allowed('opa',$cid)) {
1290: my %f=&getformulas($safeeval);
1291: my $stype=&gettype($safeeval);
1292: my $cnum=&getcnum($safeeval);
1293: my $cdom=&getcdom($safeeval);
1294: my $chome=&getchome($safeeval);
1295: my $fn=&getfilename($safeeval);
1296:
1297: # ------------------------------------------------------------- Cache new sheet
1298: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1299: # ----------------------------------------------------------------- Write sheet
1300: my $sheetdata='';
1301: foreach (keys(%f)) {
1302: unless ($f{$_} eq 'import') {
1303: $sheetdata.=&Apache::lonnet::escape($_).'='.
1304: &Apache::lonnet::escape($f{$_}).'&';
1305: }
1306: }
1307: $sheetdata=~s/\&$//;
1308: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1309: $sheetdata,$chome);
1310: if ($reply eq 'ok') {
1311: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1312: $stype.'_spreadsheets:'.
1313: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
1314: $ENV{'user.domain'},
1315: $chome);
1316: if ($reply eq 'ok') {
1317: if ($makedef) {
1318: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1319: ':environment:spreadsheet_default_'.$stype.'='.
1320: &Apache::lonnet::escape($fn),
1321: $chome);
1322: } else {
1323: return $reply;
1324: }
1325: } else {
1326: return $reply;
1327: }
1328: } else {
1329: return $reply;
1330: }
1331: }
1332: return 'unauthorized';
1333: }
1334:
1335: # ----------------------------------------------- Make a temp copy of the sheet
1336: # "Modified workcopy" - interactive only
1337: #
1338:
1339: sub tmpwrite {
1340: my $safeeval=shift;
1341: my $fn=$ENV{'user.name'}.'_'.
1342: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1343: &getfilename($safeeval);
1344: $fn=~s/\W/\_/g;
1345: $fn=$tmpdir.$fn.'.tmp';
1346: my $fh;
1347: if ($fh=Apache::File->new('>'.$fn)) {
1348: print $fh join("\n",&getformulas($safeeval));
1349: }
1350: }
1351:
1352: # ---------------------------------------------------------- Read the temp copy
1353:
1354: sub tmpread {
1355: my ($safeeval,$nfield,$nform)=@_;
1356: my $fn=$ENV{'user.name'}.'_'.
1357: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1358: &getfilename($safeeval);
1359: $fn=~s/\W/\_/g;
1360: $fn=$tmpdir.$fn.'.tmp';
1361: my $fh;
1362: my %fo=();
1363: if ($fh=Apache::File->new($fn)) {
1364: my $name;
1365: while ($name=<$fh>) {
1366: chomp($name);
1367: my $value=<$fh>;
1368: chomp($value);
1369: $fo{$name}=$value;
1370: }
1371: }
1372: if ($nform eq 'changesheet') {
1373: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1374: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1375: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1376: }
1377: } else {
1378: if ($nfield) { $fo{$nfield}=$nform; }
1379: }
1380: &setformulas($safeeval,%fo);
1381: }
1382:
1383: # ================================================================== Parameters
1384: # -------------------------------------------- Figure out a cascading parameter
1385: #
1386: # For this function to work
1387: #
1388: # * parmhash needs to be tied
1389: # * courseopt and useropt need to be initialized for this user and course
1390: #
1391:
1392: sub parmval {
1393: my ($what,$safeeval)=@_;
1394: my $cid=&getcid($safeeval);
1395: my $csec=&getcsec($safeeval);
1396: my $uname=&getuname($safeeval);
1397: my $udom=&getudom($safeeval);
1398: my $symb=&getusymb($safeeval);
1399:
1400: unless ($symb) { return ''; }
1401: my $result='';
1402:
1403: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1404: # ----------------------------------------------------- Cascading lookup scheme
1405: my $rwhat=$what;
1406: $what=~s/^parameter\_//;
1407: $what=~s/\_([^\_]+)$/\.$1/;
1408:
1409: my $symbparm=$symb.'.'.$what;
1410: my $mapparm=$mapname.'___(all).'.$what;
1411: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1412:
1413: my $seclevel=
1414: $usercourseprefix.'.['.
1415: $csec.'].'.$what;
1416: my $seclevelr=
1417: $usercourseprefix.'.['.
1418: $csec.'].'.$symbparm;
1419: my $seclevelm=
1420: $usercourseprefix.'.['.
1421: $csec.'].'.$mapparm;
1422:
1423: my $courselevel=
1424: $usercourseprefix.'.'.$what;
1425: my $courselevelr=
1426: $usercourseprefix.'.'.$symbparm;
1427: my $courselevelm=
1428: $usercourseprefix.'.'.$mapparm;
1429:
1430: # ---------------------------------------------------------- fourth, check user
1431:
1432: if ($uname) {
1433:
1434: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1435:
1436: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1437:
1438: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1439:
1440: }
1441:
1442: # --------------------------------------------------------- third, check course
1443:
1444: if ($csec) {
1445:
1446: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1447:
1448: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1449:
1450: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1451:
1452: }
1453:
1454: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1455:
1456: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1457:
1458: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1459:
1460: # ----------------------------------------------------- second, check map parms
1461:
1462: my $thisparm=$parmhash{$symbparm};
1463: if ($thisparm) { return $thisparm; }
1464:
1465: # -------------------------------------------------------- first, check default
1466:
1467: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1468:
1469: }
1470:
1471: # ---------------------------------------------- Update rows for course listing
1472:
1473: sub updateclasssheet {
1474: my $safeeval=shift;
1475: my $cnum=&getcnum($safeeval);
1476: my $cdom=&getcdom($safeeval);
1477: my $cid=&getcid($safeeval);
1478: my $chome=&getchome($safeeval);
1479:
1480: # ---------------------------------------------- Read class list and row labels
1481:
1482: my $classlst=&Apache::lonnet::reply
1483: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1484: my %currentlist=();
1485: my $now=time;
1486: unless ($classlst=~/^error\:/) {
1487: foreach (split(/\&/,$classlst)) {
1488: my ($name,$value)=split(/\=/,$_);
1489: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1490: my $active=1;
1491: if (($end) && ($now>$end)) { $active=0; }
1492: if ($active) {
1493: my $rowlabel='';
1494: $name=&Apache::lonnet::unescape($name);
1495: my ($sname,$sdom)=split(/\:/,$name);
1496: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1497: if ($ssec==-1) {
1498: unless ($ENV{'form.showcsv'}) {
1499: $rowlabel='<font color=red>Data not available: '.$name.
1500: '</font>';
1501: } else {
1502: $rowlabel='ERROR","'.$name.
1503: '","Data not available","","","';
1504: }
1505: } else {
1506: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1507: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1508: ':environment:firstname&middlename&lastname&generation',
1509: &Apache::lonnet::homeserver($sname,$sdom));
1510: unless ($ENV{'form.showcsv'}) {
1511: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1512: '&udom='.$sdom.'">'.
1513: $ssec.' '.$reply{$sname}.'<br>';
1514: foreach ( split(/\&/,$reply)) {
1515: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1516: }
1517: $rowlabel.='</a>';
1518: } else {
1519: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1520: my $ncount=0;
1521: foreach (split(/\&/,$reply)) {
1522: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1523: $ncount++;
1524: }
1525: unless ($ncount==4) { $rowlabel.=',""'; }
1526: $rowlabel=~s/\"$//;
1527: }
1528: }
1529: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1530: }
1531: } # end of foreach (split(/\&/,$classlst))
1532: #
1533: # -------------------- Find discrepancies between the course row table and this
1534: #
1535: my %f=&getformulas($safeeval);
1536: my $changed=0;
1537:
1538: my $maxrow=0;
1539: my %existing=();
1540:
1541: # ----------------------------------------------------------- Now obsolete rows
1542: foreach (keys(%f)) {
1543: if ($_=~/^A(\d+)/) {
1544: $maxrow=($1>$maxrow)?$1:$maxrow;
1545: $existing{$f{$_}}=1;
1546: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1547: $f{$_}='!!! Obsolete';
1548: $changed=1;
1549: }
1550: }
1551: }
1552:
1553: # -------------------------------------------------------- New and unknown keys
1554:
1555: foreach (sort keys(%currentlist)) {
1556: unless ($existing{$_}) {
1557: $changed=1;
1558: $maxrow++;
1559: $f{'A'.$maxrow}=$_;
1560: }
1561: }
1562:
1563: if ($changed) { &setformulas($safeeval,%f); }
1564:
1565: &setmaxrow($safeeval,$maxrow);
1566: &setrowlabels($safeeval,%currentlist);
1567:
1568: } else {
1569: return 'Could not access course data';
1570: }
1571: }
1572:
1573: # ----------------------------------- Update rows for student and assess sheets
1574:
1575: sub updatestudentassesssheet {
1576: my $safeeval=shift;
1577: my %bighash;
1578: my $stype=&gettype($safeeval);
1579: my %current=();
1580: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1581: # -------------------------------------------------------------------- Tie hash
1582: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1583: &GDBM_READER,0640)) {
1584: # --------------------------------------------------------- Get all assessments
1585:
1586: my %allkeys=('timestamp' =>
1587: 'Timestamp of Last Transaction<br>timestamp',
1588: 'subnumber' =>
1589: 'Number of Submissions<br>subnumber',
1590: 'tutornumber' =>
1591: 'Number of Tutor Responses<br>tutornumber',
1592: 'totalpoints' =>
1593: 'Total Points Granted<br>totalpoints');
1594:
1595: my $adduserstr='';
1596: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1597: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1598: $adduserstr='&uname='.&getuname($safeeval).
1599: '&udom='.&getudom($safeeval);
1600: }
1601:
1602: my %allassess=('_feedback' =>
1603: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1604: '">Feedback</a>',
1605: '_evaluation' =>
1606: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1607: '">Evaluation</a>',
1608: '_tutoring' =>
1609: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1610: '">Tutoring</a>',
1611: '_discussion' =>
1612: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1613: '">Discussion</a>'
1614: );
1615:
1616: foreach (keys(%bighash)) {
1617: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1618: my $mapid=$1;
1619: my $resid=$2;
1620: my $id=$mapid.'.'.$resid;
1621: my $srcf=$bighash{$_};
1622: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1623: my $symb=
1624: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1625: '___'.$resid.'___'.
1626: &Apache::lonnet::declutter($srcf);
1627: $allassess{$symb}=
1628: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1629: $bighash{'title_'.$id}.'</a>';
1630: if ($stype eq 'assesscalc') {
1631: foreach (split(/\,/,
1632: &Apache::lonnet::metadata($srcf,'keys'))) {
1633: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1634: my $key=$_;
1635: my $display=
1636: &Apache::lonnet::metadata($srcf,$key.'.display');
1637: unless ($display) {
1638: $display.=
1639: &Apache::lonnet::metadata($srcf,$key.'.name');
1640: }
1641: $display.='<br>'.$key;
1642: $allkeys{$key}=$display;
1643: }
1644: } # end of foreach
1645: }
1646: }
1647: }
1648: } # end of foreach (keys(%bighash))
1649: untie(%bighash);
1650:
1651: #
1652: # %allkeys has a list of storage and parameter displays by unikey
1653: # %allassess has a list of all resource displays by symb
1654: #
1655:
1656: if ($stype eq 'assesscalc') {
1657: %current=%allkeys;
1658: } elsif ($stype eq 'studentcalc') {
1659: %current=%allassess;
1660: }
1661: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1662: join('___;___',%current);
1663: } else {
1664: return 'Could not access course data';
1665: }
1666: # ------------------------------------------------------ Get current from cache
1667: } else {
1668: %current=split(/\_\_\_\;\_\_\_/,
1669: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1670: }
1671: # -------------------- Find discrepancies between the course row table and this
1672: #
1673: my %f=&getformulas($safeeval);
1674: my $changed=0;
1675:
1676: my $maxrow=0;
1677: my %existing=();
1678:
1679: # ----------------------------------------------------------- Now obsolete rows
1680: foreach (keys(%f)) {
1681: if ($_=~/^A(\d+)/) {
1682: $maxrow=($1>$maxrow)?$1:$maxrow;
1683: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1684: $existing{$usy}=1;
1685: unless ((defined($current{$usy})) || (!$1)) {
1686: $f{$_}='!!! Obsolete';
1687: $changed=1;
1688: } elsif ($ufn) {
1689: $current{$usy}
1690: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1691: }
1692: }
1693: }
1694:
1695: # -------------------------------------------------------- New and unknown keys
1696:
1697: foreach (keys(%current)) {
1698: unless ($existing{$_}) {
1699: $changed=1;
1700: $maxrow++;
1701: $f{'A'.$maxrow}=$_;
1702: }
1703: }
1704:
1705: if ($changed) { &setformulas($safeeval,%f); }
1706:
1707: &setmaxrow($safeeval,$maxrow);
1708: &setrowlabels($safeeval,%current);
1709:
1710: undef %current;
1711: undef %existing;
1712: }
1713:
1714: # ------------------------------------------------ Load data for one assessment
1715:
1716: sub loadstudent {
1717: my $safeeval=shift;
1718: my %c=();
1719: my %f=&getformulas($safeeval);
1720: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1721: %cachedstores=();
1722: {
1723: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1724: &getuname($safeeval).':'.
1725: &getcid($safeeval),
1726: &getuhome($safeeval));
1727: unless ($reply=~/^error\:/) {
1728: foreach ( split(/\&/,$reply)) {
1729: my ($name,$value)=split(/\=/,$_);
1730: $cachedstores{&Apache::lonnet::unescape($name)}=
1731: &Apache::lonnet::unescape($value);
1732: }
1733: }
1734: }
1735: my @assessdata=();
1736: foreach (keys(%f)) {
1737: if ($_=~/^A(\d+)/) {
1738: my $row=$1;
1739: unless (($f{$_}=~/^\!/) || ($row==0)) {
1740: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1741: @assessdata=&exportsheet(&getuname($safeeval),
1742: &getudom($safeeval),
1743: 'assesscalc',$usy,$ufn);
1744: my $index=0;
1745: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1746: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1747: if ($assessdata[$index]) {
1748: my $col=$_;
1749: if ($assessdata[$index]=~/\D/) {
1750: $c{$col.$row}="'".$assessdata[$index]."'";
1751: } else {
1752: $c{$col.$row}=$assessdata[$index];
1753: }
1754: unless ($col eq 'A') {
1755: $f{$col.$row}='import';
1756: }
1757: }
1758: $index++;
1759: }
1760: }
1761: }
1762: }
1763: $cachedassess='';
1764: undef %cachedstores;
1765: &setformulas($safeeval,%f);
1766: &setconstants($safeeval,%c);
1767: }
1768:
1769: # --------------------------------------------------- Load data for one student
1770:
1771: sub loadcourse {
1772: my ($safeeval,$r)=@_;
1773: my %c=();
1774: my %f=&getformulas($safeeval);
1775: my $total=0;
1776: foreach (keys(%f)) {
1777: if ($_=~/^A(\d+)/) {
1778: unless ($f{$_}=~/^\!/) { $total++; }
1779: }
1780: }
1781: my $now=0;
1782: my $since=time;
1783: $r->print(<<ENDPOP);
1784: <script>
1785: popwin=open('','popwin','width=400,height=100');
1786: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1787: '<h3>Spreadsheet Calculation Progress</h3>'+
1788: '<form name=popremain>'+
1789: '<input type=text size=35 name=remaining value=Starting></form>'+
1790: '</body></html>');
1791: popwin.document.close();
1792: </script>
1793: ENDPOP
1794: $r->rflush();
1795: foreach (keys(%f)) {
1796: if ($_=~/^A(\d+)/) {
1797: my $row=$1;
1798: unless (($f{$_}=~/^\!/) || ($row==0)) {
1799: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1800: 'studentcalc');
1801: undef %userrdatas;
1802: $now++;
1803: $r->print('<script>popwin.document.popremain.remaining.value="'.
1804: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1805: ' secs remaining";</script>');
1806: $r->rflush();
1807:
1808: my $index=0;
1809: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1810: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1811: if ($studentdata[$index]) {
1812: my $col=$_;
1813: if ($studentdata[$index]=~/\D/) {
1814: $c{$col.$row}="'".$studentdata[$index]."'";
1815: } else {
1816: $c{$col.$row}=$studentdata[$index];
1817: }
1818: unless ($col eq 'A') {
1819: $f{$col.$row}='import';
1820: }
1821: }
1822: $index++;
1823: }
1824: }
1825: }
1826: }
1827: &setformulas($safeeval,%f);
1828: &setconstants($safeeval,%c);
1829: $r->print('<script>popwin.close()</script>');
1830: $r->rflush();
1831: }
1832:
1833: # ------------------------------------------------ Load data for one assessment
1834:
1835: sub loadassessment {
1836: my $safeeval=shift;
1837:
1838: my $uhome=&getuhome($safeeval);
1839: my $uname=&getuname($safeeval);
1840: my $udom=&getudom($safeeval);
1841: my $symb=&getusymb($safeeval);
1842: my $cid=&getcid($safeeval);
1843: my $cnum=&getcnum($safeeval);
1844: my $cdom=&getcdom($safeeval);
1845: my $chome=&getchome($safeeval);
1846:
1847: my $namespace;
1848: unless ($namespace=$cid) { return ''; }
1849:
1850: # ----------------------------------------------------------- Get stored values
1851:
1852: my %returnhash=();
1853:
1854: if ($cachedassess eq $uname.':'.$udom) {
1855: #
1856: # get data out of the dumped stores
1857: #
1858:
1859: my $version=$cachedstores{'version:'.$symb};
1860: my $scope;
1861: for ($scope=1;$scope<=$version;$scope++) {
1862: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1863: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1864: }
1865: }
1866:
1867: } else {
1868: #
1869: # restore individual
1870: #
1871:
1872: my $answer=&Apache::lonnet::reply(
1873: "restore:$udom:$uname:".
1874: &Apache::lonnet::escape($namespace).":".
1875: &Apache::lonnet::escape($symb),$uhome);
1876: foreach (split(/\&/,$answer)) {
1877: my ($name,$value)=split(/\=/,$_);
1878: $returnhash{&Apache::lonnet::unescape($name)}=
1879: &Apache::lonnet::unescape($value);
1880: }
1881: my $version;
1882: for ($version=1;$version<=$returnhash{'version'};$version++) {
1883: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1884: $returnhash{$_}=$returnhash{$version.':'.$_};
1885: }
1886: }
1887: }
1888: # ----------------------------- returnhash now has all stores for this resource
1889:
1890: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1891:
1892: my @oldkeys=keys %returnhash;
1893:
1894: foreach (@oldkeys) {
1895: my $name=$_;
1896: my $value=$returnhash{$_};
1897: delete $returnhash{$_};
1898: $name=~s/\_/\./g;
1899: $returnhash{$name}=$value;
1900: }
1901:
1902: # ---------------------------- initialize coursedata and userdata for this user
1903: undef %courseopt;
1904: undef %useropt;
1905:
1906: my $userprefix=$uname.'_'.$udom.'_';
1907:
1908: unless ($uhome eq 'no_host') {
1909: # -------------------------------------------------------------- Get coursedata
1910: unless
1911: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1912: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1913: ':resourcedata',$chome);
1914: if ($reply!~/^error\:/) {
1915: $courserdatas{$cid}=$reply;
1916: $courserdatas{$cid.'.last_cache'}=time;
1917: }
1918: }
1919: foreach (split(/\&/,$courserdatas{$cid})) {
1920: my ($name,$value)=split(/\=/,$_);
1921: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1922: &Apache::lonnet::unescape($value);
1923: }
1924: # --------------------------------------------------- Get userdata (if present)
1925: unless
1926: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1927: my $reply=
1928: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1929: if ($reply!~/^error\:/) {
1930: $userrdatas{$uname.'___'.$udom}=$reply;
1931: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1932: }
1933: }
1934: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
1935: my ($name,$value)=split(/\=/,$_);
1936: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1937: &Apache::lonnet::unescape($value);
1938: }
1939: }
1940: # ----------------- now courseopt, useropt initialized for this user and course
1941: # (used by parmval)
1942:
1943: #
1944: # Load keys for this assessment only
1945: #
1946: my %thisassess=();
1947: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1948:
1949: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
1950: $thisassess{$_}=1;
1951: }
1952: #
1953: # Load parameters
1954: #
1955: my %c=();
1956:
1957: if (tie(%parmhash,'GDBM_File',
1958: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1959: my %f=&getformulas($safeeval);
1960: foreach (keys(%f)) {
1961: if ($_=~/^A/) {
1962: unless ($f{$_}=~/^\!/) {
1963: if ($f{$_}=~/^parameter/) {
1964: if ($thisassess{$f{$_}}) {
1965: my $val=&parmval($f{$_},$safeeval);
1966: $c{$_}=$val;
1967: $c{$f{$_}}=$val;
1968: }
1969: } else {
1970: my $key=$f{$_};
1971: my $ckey=$key;
1972: $key=~s/^stores\_/resource\./;
1973: $key=~s/\_/\./g;
1974: $c{$_}=$returnhash{$key};
1975: $c{$ckey}=$returnhash{$key};
1976: }
1977: }
1978: }
1979: }
1980: untie(%parmhash);
1981: }
1982: &setconstants($safeeval,%c);
1983: }
1984:
1985: # --------------------------------------------------------- Various form fields
1986:
1987: sub textfield {
1988: my ($title,$name,$value)=@_;
1989: return "\n<p><b>$title:</b><br>".
1990: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1991: }
1992:
1993: sub hiddenfield {
1994: my ($name,$value)=@_;
1995: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
1996: }
1997:
1998: sub selectbox {
1999: my ($title,$name,$value,%options)=@_;
2000: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2001: foreach (sort keys(%options)) {
2002: $selout.='<option value="'.$_.'"';
2003: if ($_ eq $value) { $selout.=' selected'; }
2004: $selout.='>'.$options{$_}.'</option>';
2005: }
2006: return $selout.'</select>';
2007: }
2008:
2009: # =============================================== Update information in a sheet
2010: #
2011: # Add new users or assessments, etc.
2012: #
2013:
2014: sub updatesheet {
2015: my $safeeval=shift;
2016: my $stype=&gettype($safeeval);
2017: if ($stype eq 'classcalc') {
2018: return &updateclasssheet($safeeval);
2019: } else {
2020: return &updatestudentassesssheet($safeeval);
2021: }
2022: }
2023:
2024: # =================================================== Load the rows for a sheet
2025: #
2026: # Import the data for rows
2027: #
2028:
2029: sub loadrows {
2030: my ($safeeval,$r)=@_;
2031: my $stype=&gettype($safeeval);
2032: if ($stype eq 'classcalc') {
2033: &loadcourse($safeeval,$r);
2034: } elsif ($stype eq 'studentcalc') {
2035: &loadstudent($safeeval);
2036: } else {
2037: &loadassessment($safeeval);
2038: }
2039: }
2040:
2041: # ======================================================= Forced recalculation?
2042:
2043: sub checkthis {
2044: my ($keyname,$time)=@_;
2045: return ($time<$expiredates{$keyname});
2046: }
2047: sub forcedrecalc {
2048: my ($uname,$udom,$stype,$usymb)=@_;
2049: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2050: my $time=$oldsheets{$key.'.time'};
2051: if ($ENV{'form.forcerecalc'}) { return 1; }
2052: unless ($time) { return 1; }
2053: if ($stype eq 'assesscalc') {
2054: my $map=(split(/\_\_\_/,$usymb))[0];
2055: if (&checkthis('::assesscalc:',$time) ||
2056: &checkthis('::assesscalc:'.$map,$time) ||
2057: &checkthis('::assesscalc:'.$usymb,$time) ||
2058: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2059: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2060: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2061: return 1;
2062: }
2063: } else {
2064: if (&checkthis('::studentcalc:',$time) ||
2065: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2066: return 1;
2067: }
2068: }
2069: return 0;
2070: }
2071:
2072: # ============================================================== Export handler
2073: #
2074: # Non-interactive call from with program
2075: #
2076:
2077: sub exportsheet {
2078: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2079: my @exportarr=();
2080:
2081: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2082: $fn='default_'.$1;
2083: }
2084:
2085: #
2086: # Check if cached
2087: #
2088:
2089: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2090: my $found='';
2091:
2092: if ($oldsheets{$key}) {
2093: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2094: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2095: if ($name eq $fn) {
2096: $found=$value;
2097: }
2098: }
2099: }
2100:
2101: unless ($found) {
2102: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2103: if ($oldsheets{$key}) {
2104: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2105: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2106: if ($name eq $fn) {
2107: $found=$value;
2108: }
2109: }
2110: }
2111: }
2112: #
2113: # Check if still valid
2114: #
2115: if ($found) {
2116: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2117: $found='';
2118: }
2119: }
2120:
2121: if ($found) {
2122: #
2123: # Return what was cached
2124: #
2125: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2126:
2127: } else {
2128: #
2129: # Not cached
2130: #
2131:
2132: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
2133: &readsheet($thissheet,$fn);
2134: &updatesheet($thissheet);
2135: &loadrows($thissheet);
2136: &calcsheet($thissheet);
2137: @exportarr=&exportdata($thissheet);
2138: #
2139: # Store now
2140: #
2141: my $cid=$ENV{'request.course.id'};
2142: my $current='';
2143: if ($stype eq 'studentcalc') {
2144: $current=&Apache::lonnet::reply('get:'.
2145: $ENV{'course.'.$cid.'.domain'}.':'.
2146: $ENV{'course.'.$cid.'.num'}.
2147: ':nohist_calculatedsheets:'.
2148: &Apache::lonnet::escape($key),
2149: $ENV{'course.'.$cid.'.home'});
2150: } else {
2151: $current=&Apache::lonnet::reply('get:'.
2152: &getudom($thissheet).':'.
2153: &getuname($thissheet).
2154: ':nohist_calculatedsheets_'.
2155: $ENV{'request.course.id'}.':'.
2156: &Apache::lonnet::escape($key),
2157: &getuhome($thissheet));
2158:
2159: }
2160: my %currentlystored=();
2161: unless ($current=~/^error\:/) {
2162: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
2163: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2164: $currentlystored{$name}=$value;
2165: }
2166: }
2167: $currentlystored{$fn}=join('___;___',@exportarr);
2168:
2169: my $newstore='';
2170: foreach (keys(%currentlystored)) {
2171: if ($newstore) { $newstore.='___&___'; }
2172: $newstore.=$_.'___=___'.$currentlystored{$_};
2173: }
2174: my $now=time;
2175: if ($stype eq 'studentcalc') {
2176: &Apache::lonnet::reply('put:'.
2177: $ENV{'course.'.$cid.'.domain'}.':'.
2178: $ENV{'course.'.$cid.'.num'}.
2179: ':nohist_calculatedsheets:'.
2180: &Apache::lonnet::escape($key).'='.
2181: &Apache::lonnet::escape($newstore).'&'.
2182: &Apache::lonnet::escape($key).'.time='.$now,
2183: $ENV{'course.'.$cid.'.home'});
2184: } else {
2185: &Apache::lonnet::reply('put:'.
2186: &getudom($thissheet).':'.
2187: &getuname($thissheet).
2188: ':nohist_calculatedsheets_'.
2189: $ENV{'request.course.id'}.':'.
2190: &Apache::lonnet::escape($key).'='.
2191: &Apache::lonnet::escape($newstore).'&'.
2192: &Apache::lonnet::escape($key).'.time='.$now,
2193: &getuhome($thissheet));
2194: }
2195: }
2196: return @exportarr;
2197: }
2198: # ============================================================ Expiration Dates
2199: #
2200: # Load previously cached student spreadsheets for this course
2201: #
2202:
2203: sub expirationdates {
2204: undef %expiredates;
2205: my $cid=$ENV{'request.course.id'};
2206: my $reply=&Apache::lonnet::reply('dump:'.
2207: $ENV{'course.'.$cid.'.domain'}.':'.
2208: $ENV{'course.'.$cid.'.num'}.
2209: ':nohist_expirationdates',
2210: $ENV{'course.'.$cid.'.home'});
2211: unless ($reply=~/^error\:/) {
2212: foreach (split(/\&/,$reply)) {
2213: my ($name,$value)=split(/\=/,$_);
2214: $expiredates{&Apache::lonnet::unescape($name)}
2215: =&Apache::lonnet::unescape($value);
2216: }
2217: }
2218: }
2219:
2220: # ===================================================== Calculated sheets cache
2221: #
2222: # Load previously cached student spreadsheets for this course
2223: #
2224:
2225: sub cachedcsheets {
2226: my $cid=$ENV{'request.course.id'};
2227: my $reply=&Apache::lonnet::reply('dump:'.
2228: $ENV{'course.'.$cid.'.domain'}.':'.
2229: $ENV{'course.'.$cid.'.num'}.
2230: ':nohist_calculatedsheets',
2231: $ENV{'course.'.$cid.'.home'});
2232: unless ($reply=~/^error\:/) {
2233: foreach ( split(/\&/,$reply)) {
2234: my ($name,$value)=split(/\=/,$_);
2235: $oldsheets{&Apache::lonnet::unescape($name)}
2236: =&Apache::lonnet::unescape($value);
2237: }
2238: }
2239: }
2240:
2241: # ===================================================== Calculated sheets cache
2242: #
2243: # Load previously cached assessment spreadsheets for this student
2244: #
2245:
2246: sub cachedssheets {
2247: my ($sname,$sdom,$shome)=@_;
2248: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2249: my $cid=$ENV{'request.course.id'};
2250: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2251: ':nohist_calculatedsheets_'.
2252: $ENV{'request.course.id'},
2253: $shome);
2254: unless ($reply=~/^error\:/) {
2255: foreach ( split(/\&/,$reply)) {
2256: my ($name,$value)=split(/\=/,$_);
2257: $oldsheets{&Apache::lonnet::unescape($name)}
2258: =&Apache::lonnet::unescape($value);
2259: }
2260: }
2261: $loadedcaches{$sname.'_'.$sdom}=1;
2262: }
2263: }
2264:
2265: # ===================================================== Calculated sheets cache
2266: #
2267: # Load previously cached assessment spreadsheets for this student
2268: #
2269:
2270: # ================================================================ Main handler
2271: #
2272: # Interactive call to screen
2273: #
2274: #
2275:
2276:
2277: sub handler {
2278: my $r=shift;
2279:
2280: if ($r->header_only) {
2281: $r->content_type('text/html');
2282: $r->send_http_header;
2283: return OK;
2284: }
2285:
2286: # ---------------------------------------------------- Global directory configs
2287:
2288: $includedir=$r->dir_config('lonIncludes');
2289: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
2290:
2291: # ----------------------------------------------------- Needs to be in a course
2292:
2293: if ($ENV{'request.course.fn'}) {
2294:
2295: # --------------------------- Get query string for limited number of parameters
2296:
2297: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
2298: my ($name, $value) = split(/=/,$_);
2299: $value =~ tr/+/ /;
2300: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2301: if (($name eq 'uname') || ($name eq 'udom') ||
2302: ($name eq 'usymb') || ($name eq 'ufn')) {
2303: unless ($ENV{'form.'.$name}) {
2304: $ENV{'form.'.$name}=$value;
2305: }
2306: }
2307: }
2308:
2309: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2310: $ENV{'form.ufn'}='default_'.$1;
2311: }
2312:
2313: # -------------------------------------- Interactive loading of specific sheet?
2314: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2315: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2316: }
2317: # ------------------------------------------- Nothing there? Must be login user
2318:
2319: my $aname;
2320: my $adom;
2321:
2322: unless ($ENV{'form.uname'}) {
2323: $aname=$ENV{'user.name'};
2324: $adom=$ENV{'user.domain'};
2325: } else {
2326: $aname=$ENV{'form.uname'};
2327: $adom=$ENV{'form.udom'};
2328: }
2329:
2330: # ------------------------------------------------------------------- Open page
2331:
2332: $r->content_type('text/html');
2333: $r->header_out('Cache-control','no-cache');
2334: $r->header_out('Pragma','no-cache');
2335: $r->send_http_header;
2336:
2337: # --------------------------------------------------------------- Screen output
2338:
2339: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2340: $r->print(<<ENDSCRIPT);
2341: <script language="JavaScript">
2342:
2343: function celledit(cn,cf) {
2344: var cnf=prompt(cn,cf);
2345: if (cnf!=null) {
2346: document.sheet.unewfield.value=cn;
2347: document.sheet.unewformula.value=cnf;
2348: document.sheet.submit();
2349: }
2350: }
2351:
2352: function changesheet(cn) {
2353: document.sheet.unewfield.value=cn;
2354: document.sheet.unewformula.value='changesheet';
2355: document.sheet.submit();
2356: }
2357:
2358: </script>
2359: ENDSCRIPT
2360: $r->print('</head><body bgcolor="#FFFFFF">'.
2361: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2362: '<h1>LON-CAPA Spreadsheet</h1>'.
2363: '<form action="'.$r->uri.'" name=sheet method=post>'.
2364: &hiddenfield('uname',$ENV{'form.uname'}).
2365: &hiddenfield('udom',$ENV{'form.udom'}).
2366: &hiddenfield('usymb',$ENV{'form.usymb'}).
2367: &hiddenfield('unewfield','').
2368: &hiddenfield('unewformula',''));
2369:
2370: # ---------------------- Make sure that this gets out, even if user hits "stop"
2371:
2372: $r->rflush();
2373:
2374: # ---------------------------------------------------------------- Full recalc?
2375:
2376:
2377: if ($ENV{'form.forcerecalc'}) {
2378: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2379: undef %spreadsheets;
2380: undef %courserdatas;
2381: undef %userrdatas;
2382: undef %defaultsheets;
2383: undef %updatedata;
2384: }
2385:
2386: # ---------------------------------------- Read new sheet or modified worksheet
2387:
2388: $r->uri=~/\/(\w+)$/;
2389:
2390: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2391:
2392: # ------------------------ If a new formula had been entered, go from work copy
2393:
2394: if ($ENV{'form.unewfield'}) {
2395: $r->print('<h2>Modified Workcopy</h2>');
2396: $ENV{'form.unewformula'}=~s/\'/\"/g;
2397: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2398: $ENV{'form.unewformula'}.'<p>');
2399: &setfilename($asheet,$ENV{'form.ufn'});
2400: &tmpread($asheet,
2401: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2402:
2403: } elsif ($ENV{'form.saveas'}) {
2404: &setfilename($asheet,$ENV{'form.ufn'});
2405: &tmpread($asheet);
2406: } else {
2407: &readsheet($asheet,$ENV{'form.ufn'});
2408: }
2409:
2410: # -------------------------------------------------- Print out user information
2411:
2412: unless (&gettype($asheet) eq 'classcalc') {
2413: $r->print('<p><b>User:</b> '.&getuname($asheet).
2414: '<br><b>Domain:</b> '.&getudom($asheet));
2415: if (&getcsec($asheet) eq '-1') {
2416: $r->print('<h3><font color=red>'.
2417: 'Not a student in this course</font></h3>');
2418: } else {
2419: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2420: }
2421: if ($ENV{'form.usymb'}) {
2422: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2423: }
2424: }
2425:
2426: # ---------------------------------------------------------------- Course title
2427:
2428: $r->print('<h1>'.
2429: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2430: '</h1><h3>'.localtime().'</h3>');
2431:
2432: # ---------------------------------------------------- See if user can see this
2433:
2434: if ((&gettype($asheet) eq 'classcalc') ||
2435: (&getuname($asheet) ne $ENV{'user.name'}) ||
2436: (&getudom($asheet) ne $ENV{'user.domain'})) {
2437: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2438: $r->print(
2439: '<h1>Access Permission Denied</h1></form></body></html>');
2440: return OK;
2441: }
2442: }
2443:
2444: # ---------------------------------------------------------- Additional options
2445:
2446: $r->print(
2447: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2448: );
2449: if (&gettype($asheet) eq 'assesscalc') {
2450: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2451: &getuname($asheet).
2452: '&udom='.&getudom($asheet).
2453: '">Level up: Student Sheet</a></font><p>');
2454: }
2455:
2456: if ((&gettype($asheet) eq 'studentcalc') &&
2457: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2458: $r->print (
2459: '<p><font size=+2><a href="/adm/classcalc">'.
2460: 'Level up: Course Sheet</a></font><p>');
2461: }
2462:
2463:
2464: # ----------------------------------------------------------------- Save dialog
2465:
2466:
2467: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2468: my $fname=$ENV{'form.ufn'};
2469: $fname=~s/\_[^\_]+$//;
2470: if ($fname eq 'default') { $fname='course_default'; }
2471: $r->print('<input type=submit name=saveas value="Save as ...">'.
2472: '<input type=text size=20 name=newfn value="'.$fname.
2473: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2474: }
2475:
2476: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2477:
2478: # ----------------------------------------------------------------- Load dialog
2479: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2480: $r->print('<p><input type=submit name=load value="Load ...">'.
2481: '<select name="loadthissheet">'.
2482: '<option name="default">Default</option>');
2483: foreach (&othersheets($asheet,&gettype($asheet))) {
2484: $r->print('<option name="'.$_.'"');
2485: if ($ENV{'form.ufn'} eq $_) {
2486: $r->print(' selected');
2487: }
2488: $r->print('>'.$_.'</option>');
2489: }
2490: $r->print('</select><p>');
2491: if (&gettype($asheet) eq 'studentcalc') {
2492: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2493: }
2494: }
2495:
2496: # --------------------------------------------------------------- Cached sheets
2497:
2498: &expirationdates();
2499:
2500: undef %oldsheets;
2501: undef %loadedcaches;
2502:
2503: if (&gettype($asheet) eq 'classcalc') {
2504: $r->print("Loading previously calculated student sheets ...<br>\n");
2505: $r->rflush();
2506: &cachedcsheets();
2507: } elsif (&gettype($asheet) eq 'studentcalc') {
2508: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2509: $r->rflush();
2510: &cachedssheets(&getuname($asheet),&getudom($asheet),
2511: &getuhome($asheet));
2512: }
2513:
2514: # ----------------------------------------------------- Update sheet, load rows
2515:
2516: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2517: $r->rflush();
2518:
2519: &updatesheet($asheet);
2520:
2521: $r->print("Updated rows, loading row data ...<br>\n");
2522: $r->rflush();
2523:
2524: &loadrows($asheet,$r);
2525:
2526: $r->print("Loaded row data, calculating sheet ...<br>\n");
2527: $r->rflush();
2528:
2529: my $calcoutput=&calcsheet($asheet);
2530: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2531:
2532: # ---------------------------------------------------- See if something to save
2533:
2534: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2535: my $fname='';
2536: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2537: $fname=~s/\W/\_/g;
2538: if ($fname eq 'default') { $fname='course_default'; }
2539: $fname.='_'.&gettype($asheet);
2540: &setfilename($asheet,$fname);
2541: $ENV{'form.ufn'}=$fname;
2542: $r->print('<p>Saving spreadsheet: '.
2543: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2544: }
2545: }
2546:
2547: # ------------------------------------------------ Write the modified worksheet
2548:
2549: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2550:
2551: &tmpwrite($asheet);
2552:
2553: if (&gettype($asheet) eq 'studentcalc') {
2554: $r->print('<br>Show rows with empty A column: ');
2555: } else {
2556: $r->print('<br>Show empty rows: ');
2557: }
2558:
2559: $r->print(&hiddenfield('userselhidden','true').
2560: '<input type=checkbox name=showall onClick="submit()"');
2561:
2562: if ($ENV{'form.showall'}) {
2563: $r->print(' checked');
2564: } else {
2565: unless ($ENV{'form.userselhidden'}) {
2566: unless
2567: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2568: $r->print(' checked');
2569: $ENV{'form.showall'}=1;
2570: }
2571: }
2572: }
2573: $r->print('>');
2574: if (&gettype($asheet) eq 'classcalc') {
2575: $r->print(
2576: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2577: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2578: $r->print('>');
2579: }
2580: # ------------------------------------------------------------- Print out sheet
2581:
2582: &outsheet($r,$asheet);
2583: $r->print('</form></body></html>');
2584:
2585: # ------------------------------------------------------------------------ Done
2586: } else {
2587: # ----------------------------- Not in a course, or not allowed to modify parms
2588: $ENV{'user.error.msg'}=
2589: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2590: return HTTP_NOT_ACCEPTABLE;
2591: }
2592: return OK;
2593:
2594: }
2595:
2596: 1;
2597: __END__
2598:
2599:
2600:
2601:
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