1: #
2: # $Id: lonspreadsheet.pm,v 1.79 2002/01/22 10:05:24 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:
38: package Apache::lonspreadsheet;
39:
40: use strict;
41: use Safe;
42: use Safe::Hole;
43: use Opcode;
44: use Apache::lonnet;
45: use Apache::Constants qw(:common :http);
46: use GDBM_File;
47: use HTML::TokeParser;
48:
49: #
50: # Caches for previously calculated spreadsheets
51: #
52:
53: my %oldsheets;
54: my %loadedcaches;
55: my %expiredates;
56:
57: #
58: # Cache for stores of an individual user
59: #
60:
61: my $cachedassess;
62: my %cachedstores;
63:
64: #
65: # These cache hashes need to be independent of user, resource and course
66: # (user and course can/should be in the keys)
67: #
68:
69: my %spreadsheets;
70: my %courserdatas;
71: my %userrdatas;
72: my %defaultsheets;
73: my %updatedata;
74:
75: #
76: # These global hashes are dependent on user, course and resource,
77: # and need to be initialized every time when a sheet is calculated
78: #
79: my %courseopt;
80: my %useropt;
81: my %parmhash;
82:
83: # Stuff that only the screen handler can know
84:
85: my $includedir;
86: my $tmpdir;
87:
88: # =============================================================================
89: # ===================================== Implements an instance of a spreadsheet
90:
91: sub initsheet {
92: my $safeeval = new Safe(shift);
93: my $safehole = new Safe::Hole;
94: $safeeval->permit("entereval");
95: $safeeval->permit(":base_math");
96: $safeeval->permit("sort");
97: $safeeval->deny(":base_io");
98: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
99: my $code=<<'ENDDEFS';
100: # ---------------------------------------------------- Inside of the safe space
101:
102: #
103: # f: formulas
104: # t: intermediate format (variable references expanded)
105: # v: output values
106: # c: preloaded constants (A-column)
107: # rl: row label
108: # os: other spreadsheets (for student spreadsheet only)
109:
110: undef %v;
111: undef %t;
112: undef %f;
113: undef %c;
114: undef %rl;
115: undef @os;
116:
117: $maxrow=0;
118: $sheettype='';
119:
120: # filename/reference of the sheet
121:
122: $filename='';
123:
124: # user data
125: $uname='';
126: $uhome='';
127: $udom='';
128:
129: # course data
130:
131: $csec='';
132: $chome='';
133: $cnum='';
134: $cdom='';
135: $cid='';
136: $cfn='';
137:
138: # symb
139:
140: $usymb='';
141:
142: sub mask {
143: my ($lower,$upper)=@_;
144:
145: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
146: my $la=$1;
147: my $ld=$2;
148:
149: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
150: my $ua=$1;
151: my $ud=$2;
152: my $alpha='';
153: my $num='';
154:
155: if (($la eq '*') || ($ua eq '*')) {
156: $alpha='[A-Za-z]';
157: } else {
158: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
159: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
160: $alpha='['.$la.'-'.$ua.']';
161: } else {
162: $alpha='['.$la.'-Za-'.$ua.']';
163: }
164: }
165:
166: if (($ld eq '*') || ($ud eq '*')) {
167: $num='\d+';
168: } else {
169: if (length($ld)!=length($ud)) {
170: $num.='(';
171: foreach ($ld=~m/\d/g) {
172: $num.='['.$_.'-9]';
173: }
174: if (length($ud)-length($ld)>1) {
175: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
176: }
177: $num.='|';
178: foreach ($ud=~m/\d/g) {
179: $num.='[0-'.$_.']';
180: }
181: $num.=')';
182: } else {
183: my @lda=($ld=~m/\d/g);
184: my @uda=($ud=~m/\d/g);
185: my $i; $j=0; $notdone=1;
186: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
187: if ($lda[$i]==$uda[$i]) {
188: $num.=$lda[$i];
189: $j=$i;
190: } else {
191: $notdone=0;
192: }
193: }
194: if ($j<$#lda-1) {
195: $num.='('.$lda[$j+1];
196: for ($i=$j+2;$i<=$#lda;$i++) {
197: $num.='['.$lda[$i].'-9]';
198: }
199: if ($uda[$j+1]-$lda[$j+1]>1) {
200: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
201: ($#lda-$j-1).'}';
202: }
203: $num.='|'.$uda[$j+1];
204: for ($i=$j+2;$i<=$#uda;$i++) {
205: $num.='[0-'.$uda[$i].']';
206: }
207: $num.=')';
208: } else {
209: if ($lda[$#lda]!=$uda[$#uda]) {
210: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
211: }
212: }
213: }
214: }
215: return '^'.$alpha.$num."\$";
216: }
217:
218: sub NUM {
219: my $mask=mask(@_);
220: my $num= $#{@{grep(/$mask/,keys(%v))}}+1;
221: return $num;
222: }
223:
224: sub BIN {
225: my ($low,$high,$lower,$upper)=@_;
226: my $mask=mask($lower,$upper);
227: my $num=0;
228: foreach (grep /$mask/,keys(%v)) {
229: if (($v{$_}>=$low) && ($v{$_}<=$high)) {
230: $num++;
231: }
232: }
233: return $num;
234: }
235:
236:
237: sub SUM {
238: my $mask=mask(@_);
239: my $sum=0;
240: foreach (grep /$mask/,keys(%v)) {
241: $sum+=$v{$_};
242: }
243: return $sum;
244: }
245:
246: sub MEAN {
247: my $mask=mask(@_);
248: my $sum=0; my $num=0;
249: foreach (grep /$mask/,keys(%v)) {
250: $sum+=$v{$_};
251: $num++;
252: }
253: if ($num) {
254: return $sum/$num;
255: } else {
256: return undef;
257: }
258: }
259:
260: sub STDDEV {
261: my $mask=mask(@_);
262: my $sum=0; my $num=0;
263: foreach (grep /$mask/,keys(%v)) {
264: $sum+=$v{$_};
265: $num++;
266: }
267: unless ($num>1) { return undef; }
268: my $mean=$sum/$num;
269: $sum=0;
270: foreach (grep /$mask/,keys(%v)) {
271: $sum+=($v{$_}-$mean)**2;
272: }
273: return sqrt($sum/($num-1));
274: }
275:
276: sub PROD {
277: my $mask=mask(@_);
278: my $prod=1;
279: foreach (grep /$mask/,keys(%v)) {
280: $prod*=$v{$_};
281: }
282: return $prod;
283: }
284:
285: sub MAX {
286: my $mask=mask(@_);
287: my $max='-';
288: foreach (grep /$mask/,keys(%v)) {
289: unless ($max) { $max=$v{$_}; }
290: if (($v{$_}>$max) || ($max eq '-')) { $max=$v{$_}; }
291: }
292: return $max;
293: }
294:
295: sub MIN {
296: my $mask=mask(@_);
297: my $min='-';
298: foreach (grep /$mask/,keys(%v)) {
299: unless ($max) { $max=$v{$_}; }
300: if (($v{$_}<$min) || ($min eq '-')) { $min=$v{$_}; }
301: }
302: return $min;
303: }
304:
305: sub SUMMAX {
306: my ($num,$lower,$upper)=@_;
307: my $mask=mask($lower,$upper);
308: my @inside=();
309: foreach (grep /$mask/,keys(%v)) {
310: $inside[$#inside+1]=$v{$_};
311: }
312: @inside=sort(@inside);
313: my $sum=0; my $i;
314: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
315: $sum+=$inside[$i];
316: }
317: return $sum;
318: }
319:
320: sub SUMMIN {
321: my ($num,$lower,$upper)=@_;
322: my $mask=mask($lower,$upper);
323: my @inside=();
324: foreach (grep /$mask/,keys(%v)) {
325: $inside[$#inside+1]=$v{$_};
326: }
327: @inside=sort(@inside);
328: my $sum=0; my $i;
329: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
330: $sum+=$inside[$i];
331: }
332: return $sum;
333: }
334:
335: sub expandnamed {
336: my $expression=shift;
337: if ($expression=~/^\&/) {
338: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
339: my @vars=split(/\W+/,$formula);
340: my %values=();
341: undef %values;
342: foreach ( @vars ) {
343: my $varname=$_;
344: if ($varname=~/\D/) {
345: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
346: $varname=~s/$var/\(\\w\+\)/g;
347: foreach (keys(%c)) {
348: if ($_=~/$varname/) {
349: $values{$1}=1;
350: }
351: }
352: }
353: }
354: if ($func eq 'EXPANDSUM') {
355: my $result='';
356: foreach (keys(%values)) {
357: my $thissum=$formula;
358: $thissum=~s/$var/$_/g;
359: $result.=$thissum.'+';
360: }
361: $result=~s/\+$//;
362: return $result;
363: } else {
364: return 0;
365: }
366: } else {
367: return '$c{\''.$expression.'\'}';
368: }
369: }
370:
371: sub sett {
372: %t=();
373: my $pattern='';
374: if ($sheettype eq 'assesscalc') {
375: $pattern='A';
376: } else {
377: $pattern='[A-Z]';
378: }
379: foreach (keys(%f)) {
380: if ($_=~/template\_(\w)/) {
381: my $col=$1;
382: unless ($col=~/^$pattern/) {
383: foreach (keys(%f)) {
384: if ($_=~/A(\d+)/) {
385: my $trow=$1;
386: if ($trow) {
387: my $lb=$col.$trow;
388: $t{$lb}=$f{'template_'.$col};
389: $t{$lb}=~s/\#/$trow/g;
390: $t{$lb}=~s/\.\.+/\,/g;
391: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
392: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
393: }
394: }
395: }
396: }
397: }
398: }
399: foreach (keys(%f)) {
400: if (($f{$_}) && ($_!~/template\_/)) {
401: my $matches=($_=~/^$pattern(\d+)/);
402: if (($matches) && ($1)) {
403: unless ($f{$_}=~/^\!/) {
404: $t{$_}=$c{$_};
405: }
406: } else {
407: $t{$_}=$f{$_};
408: $t{$_}=~s/\.\.+/\,/g;
409: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
410: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
411: }
412: }
413: }
414: $t{'A0'}=$f{'A0'};
415: $t{'A0'}=~s/\.\.+/\,/g;
416: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
417: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
418: }
419:
420: sub calc {
421: %v=();
422: &sett();
423: my $notfinished=1;
424: my $depth=0;
425: while ($notfinished) {
426: $notfinished=0;
427: foreach (keys(%t)) {
428: my $old=$v{$_};
429: $v{$_}=eval($t{$_});
430: if ($@) {
431: %v=();
432: return $@;
433: }
434: if ($v{$_} ne $old) { $notfinished=1; }
435: }
436: $depth++;
437: if ($depth>100) {
438: %v=();
439: return 'Maximum calculation depth exceeded';
440: }
441: }
442: return '';
443: }
444:
445: sub templaterow {
446: my @cols=();
447: $cols[0]='<b><font size=+1>Template</font></b>';
448: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
449: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
450: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
451: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
452: my $fm=$f{'template_'.$_};
453: $fm=~s/[\'\"]/\&\#34;/g;
454: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
455: }
456: return @cols;
457: }
458:
459: sub outrowassess {
460: my $n=shift;
461: my @cols=();
462: if ($n) {
463: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
464: $cols[0]=$rl{$usy}.'<br>'.
465: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
466: ')"><option name="default">Default</option>';
467: foreach (@os) {
468: $cols[0].='<option name="'.$_.'"';
469: if ($ufn eq $_) {
470: $cols[0].=' selected';
471: }
472: $cols[0].='>'.$_.'</option>';
473: }
474: $cols[0].='</select>';
475: } else {
476: $cols[0]='<b><font size=+1>Export</font></b>';
477: }
478: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
479: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
480: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
481: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
482: my $fm=$f{$_.$n};
483: $fm=~s/[\'\"]/\&\#34;/g;
484: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
485: }
486: return @cols;
487: }
488:
489: sub outrow {
490: my $n=shift;
491: my @cols=();
492: if ($n) {
493: $cols[0]=$rl{$f{'A'.$n}};
494: } else {
495: $cols[0]='<b><font size=+1>Export</font></b>';
496: }
497: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
498: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
499: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
500: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
501: my $fm=$f{$_.$n};
502: $fm=~s/[\'\"]/\&\#34;/g;
503: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
504: }
505: return @cols;
506: }
507:
508: sub exportrowa {
509: my @exportarray=();
510: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
511: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
512: $exportarray[$#exportarray+1]=$v{$_.'0'};
513: }
514: return @exportarray;
515: }
516:
517: # ------------------------------------------- End of "Inside of the safe space"
518: ENDDEFS
519: $safeeval->reval($code);
520: return $safeeval;
521: }
522:
523: # ------------------------------------------------ Add or change formula values
524:
525: sub setformulas {
526: my ($safeeval,%f)=@_;
527: %{$safeeval->varglob('f')}=%f;
528: }
529:
530: # ------------------------------------------------ Add or change formula values
531:
532: sub setconstants {
533: my ($safeeval,%c)=@_;
534: %{$safeeval->varglob('c')}=%c;
535: }
536:
537: # --------------------------------------------- Set names of other spreadsheets
538:
539: sub setothersheets {
540: my ($safeeval,@os)=@_;
541: @{$safeeval->varglob('os')}=@os;
542: }
543:
544: # ------------------------------------------------ Add or change formula values
545:
546: sub setrowlabels {
547: my ($safeeval,%rl)=@_;
548: %{$safeeval->varglob('rl')}=%rl;
549: }
550:
551: # ------------------------------------------------------- Calculate spreadsheet
552:
553: sub calcsheet {
554: my $safeeval=shift;
555: $safeeval->reval('&calc();');
556: }
557:
558: # ------------------------------------------------------------------ Get values
559:
560: sub getvalues {
561: my $safeeval=shift;
562: return $safeeval->reval('%v');
563: }
564:
565: # ---------------------------------------------------------------- Get formulas
566:
567: sub getformulas {
568: my $safeeval=shift;
569: return %{$safeeval->varglob('f')};
570: }
571:
572: # -------------------------------------------------------------------- Get type
573:
574: sub gettype {
575: my $safeeval=shift;
576: return $safeeval->reval('$sheettype');
577: }
578:
579: # ------------------------------------------------------------------ Set maxrow
580:
581: sub setmaxrow {
582: my ($safeeval,$row)=@_;
583: $safeeval->reval('$maxrow='.$row.';');
584: }
585:
586: # ------------------------------------------------------------------ Get maxrow
587:
588: sub getmaxrow {
589: my $safeeval=shift;
590: return $safeeval->reval('$maxrow');
591: }
592:
593: # ---------------------------------------------------------------- Set filename
594:
595: sub setfilename {
596: my ($safeeval,$fn)=@_;
597: $safeeval->reval('$filename="'.$fn.'";');
598: }
599:
600: # ---------------------------------------------------------------- Get filename
601:
602: sub getfilename {
603: my $safeeval=shift;
604: return $safeeval->reval('$filename');
605: }
606:
607: # --------------------------------------------------------------- Get course ID
608:
609: sub getcid {
610: my $safeeval=shift;
611: return $safeeval->reval('$cid');
612: }
613:
614: # --------------------------------------------------------- Get course filename
615:
616: sub getcfn {
617: my $safeeval=shift;
618: return $safeeval->reval('$cfn');
619: }
620:
621: # ----------------------------------------------------------- Get course number
622:
623: sub getcnum {
624: my $safeeval=shift;
625: return $safeeval->reval('$cnum');
626: }
627:
628: # ------------------------------------------------------------- Get course home
629:
630: sub getchome {
631: my $safeeval=shift;
632: return $safeeval->reval('$chome');
633: }
634:
635: # ----------------------------------------------------------- Get course domain
636:
637: sub getcdom {
638: my $safeeval=shift;
639: return $safeeval->reval('$cdom');
640: }
641:
642: # ---------------------------------------------------------- Get course section
643:
644: sub getcsec {
645: my $safeeval=shift;
646: return $safeeval->reval('$csec');
647: }
648:
649: # --------------------------------------------------------------- Get user name
650:
651: sub getuname {
652: my $safeeval=shift;
653: return $safeeval->reval('$uname');
654: }
655:
656: # ------------------------------------------------------------- Get user domain
657:
658: sub getudom {
659: my $safeeval=shift;
660: return $safeeval->reval('$udom');
661: }
662:
663: # --------------------------------------------------------------- Get user home
664:
665: sub getuhome {
666: my $safeeval=shift;
667: return $safeeval->reval('$uhome');
668: }
669:
670: # -------------------------------------------------------------------- Get symb
671:
672: sub getusymb {
673: my $safeeval=shift;
674: return $safeeval->reval('$usymb');
675: }
676:
677: # ------------------------------------------------------------- Export of A-row
678:
679: sub exportdata {
680: my $safeeval=shift;
681: return $safeeval->reval('&exportrowa()');
682: }
683:
684:
685: # ========================================================== End of Spreadsheet
686: # =============================================================================
687:
688: #
689: # Procedures for screen output
690: #
691: # --------------------------------------------- Produce output row n from sheet
692:
693: sub rown {
694: my ($safeeval,$n)=@_;
695: my $defaultbg;
696: my $rowdata='';
697: my $dataflag=0;
698: unless ($n eq '-') {
699: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
700: } else {
701: $defaultbg='#E0FF';
702: }
703: unless ($ENV{'form.showcsv'}) {
704: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
705: } else {
706: $rowdata.="\n".'"'.$n.'"';
707: }
708: my $showf=0;
709: my $proc;
710: my $maxred;
711: my $sheettype=&gettype($safeeval);
712: if ($sheettype eq 'studentcalc') {
713: $proc='&outrowassess';
714: $maxred=26;
715: } else {
716: $proc='&outrow';
717: }
718: if ($sheettype eq 'assesscalc') {
719: $maxred=1;
720: } else {
721: $maxred=26;
722: }
723: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
724: foreach ($safeeval->reval($proc.'('.$n.')')) {
725: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
726: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
727: if ((($vl ne '') || ($vl eq '0')) &&
728: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
729: if ($showf==0) { $vl=$_; }
730: unless ($ENV{'form.showcsv'}) {
731: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
732: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
733: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
734: if ($vl eq '') {
735: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
736: }
737: $rowdata.=
738: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
739: '</a></td>';
740: } else {
741: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
742: }
743: } else {
744: $rowdata.=',"'.$vl.'"';
745: }
746: $showf++;
747: } # End of foreach($safeval...)
748: if ($ENV{'form.showall'} || ($dataflag)) {
749: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
750: } else {
751: return '';
752: }
753: }
754:
755: # ------------------------------------------------------------- Print out sheet
756:
757: sub outsheet {
758: my ($r,$safeeval)=@_;
759: my $maxred;
760: my $realm;
761: if (&gettype($safeeval) eq 'assesscalc') {
762: $maxred=1;
763: $realm='Assessment';
764: } elsif (&gettype($safeeval) eq 'studentcalc') {
765: $maxred=26;
766: $realm='User';
767: } else {
768: $maxred=26;
769: $realm='Course';
770: }
771: my $maxyellow=52-$maxred;
772: my $tabledata;
773: unless ($ENV{'form.showcsv'}) {
774: $tabledata=
775: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
776: $realm.'</font></th>'.
777: '<td bgcolor=#FFDDDD colspan='.$maxred.
778: '><b><font size=+1>Import</font></b></td>'.
779: '<td colspan='.$maxyellow.
780: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
781: my $showf=0;
782: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
783: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
784: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
785: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
786: $showf++;
787: if ($showf<=$maxred) {
788: $tabledata.='<td bgcolor="#FFDDDD">';
789: } else {
790: $tabledata.='<td>';
791: }
792: $tabledata.="<b><font size=+1>$_</font></b></td>";
793: }
794: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
795: } else { $tabledata='<pre>'; }
796:
797: $r->print($tabledata);
798:
799: my $row;
800: my $maxrow=&getmaxrow($safeeval);
801:
802: my @sortby=();
803: my @sortidx=();
804: for ($row=1;$row<=$maxrow;$row++) {
805: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
806: $sortidx[$row-1]=$row-1;
807: }
808: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
809:
810: my $what='Student';
811: if (&gettype($safeeval) eq 'assesscalc') {
812: $what='Item';
813: } elsif (&gettype($safeeval) eq 'studentcalc') {
814: $what='Assessment';
815: }
816:
817: my $n=0;
818: for ($row=0;$row<$maxrow;$row++) {
819: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
820: if ($thisrow) {
821: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
822: $r->print("</table>\n<br>\n");
823: $r->rflush();
824: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
825: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
826: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
827: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
828: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
829: $r->print('<td>'.$_.'</td>');
830: }
831: $r->print('</tr>');
832: }
833: $n++;
834: $r->print($thisrow);
835: }
836: }
837: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
838: }
839:
840: #
841: # ----------------------------------------------- Read list of available sheets
842: #
843:
844: sub othersheets {
845: my ($safeeval,$stype)=@_;
846:
847: my $cnum=&getcnum($safeeval);
848: my $cdom=&getcdom($safeeval);
849: my $chome=&getchome($safeeval);
850:
851: my @alternatives=();
852: my $result=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.
853: $stype.'_spreadsheets',$chome);
854: if ($result!~/^error\:/) {
855: foreach (split(/\&/,$result)) {
856: $alternatives[$#alternatives+1]=
857: &Apache::lonnet::unescape((split(/\=/,$_))[0]);
858: }
859: }
860: return @alternatives;
861: }
862:
863: #
864: # -------------------------------------- Read spreadsheet formulas for a course
865: #
866:
867: sub readsheet {
868: my ($safeeval,$fn)=@_;
869: my $stype=&gettype($safeeval);
870: my $cnum=&getcnum($safeeval);
871: my $cdom=&getcdom($safeeval);
872: my $chome=&getchome($safeeval);
873:
874: # --------- There is no filename. Look for defaults in course and global, cache
875:
876: unless($fn) {
877: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
878: $fn=&Apache::lonnet::reply('get:'.$cdom.':'.$cnum.
879: ':environment:spreadsheet_default_'.$stype,
880: $chome);
881: unless (($fn) && ($fn!~/^error\:/)) {
882: $fn='default_'.$stype;
883: }
884: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
885: }
886: }
887:
888: # ---------------------------------------------------------- fn now has a value
889:
890: &setfilename($safeeval,$fn);
891:
892: # ------------------------------------------------------ see if sheet is cached
893: my $fstring='';
894: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
895: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
896: } else {
897:
898: # ---------------------------------------------------- Not cached, need to read
899:
900: my %f=();
901:
902: if ($fn=~/^default\_/) {
903: my $sheetxml='';
904: {
905: my $fh;
906: my $dfn=$fn;
907: $dfn=~s/\_/\./g;
908: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
909: $sheetxml=join('',<$fh>);
910: } else {
911: $sheetxml='<field row="0" col="A">"Error"</field>';
912: }
913: }
914: my $parser=HTML::TokeParser->new(\$sheetxml);
915: my $token;
916: while ($token=$parser->get_token) {
917: if ($token->[0] eq 'S') {
918: if ($token->[1] eq 'field') {
919: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
920: $parser->get_text('/field');
921: }
922: if ($token->[1] eq 'template') {
923: $f{'template_'.$token->[2]->{'col'}}=
924: $parser->get_text('/template');
925: }
926: }
927: }
928: } else {
929: my $sheet='';
930: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.$fn,
931: $chome);
932: unless ($reply=~/^error\:/) {
933: $sheet=$reply;
934: }
935: foreach (split(/\&/,$sheet)) {
936: my ($name,$value)=split(/\=/,$_);
937: $f{&Apache::lonnet::unescape($name)}=
938: &Apache::lonnet::unescape($value);
939: }
940: }
941: # --------------------------------------------------------------- Cache and set
942: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
943: &setformulas($safeeval,%f);
944: }
945: }
946:
947: # -------------------------------------------------------- Make new spreadsheet
948:
949: sub makenewsheet {
950: my ($uname,$udom,$stype,$usymb)=@_;
951: my $safeeval=initsheet($stype);
952: $safeeval->reval(
953: '$uname="'.$uname.
954: '";$udom="'.$udom.
955: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
956: '";$sheettype="'.$stype.
957: '";$usymb="'.$usymb.
958: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
959: $ENV{'request.course.id'}).
960: '";$cid="'.$ENV{'request.course.id'}.
961: '";$cfn="'.$ENV{'request.course.fn'}.
962: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
963: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
964: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
965: return $safeeval;
966: }
967:
968: # ------------------------------------------------------------ Save spreadsheet
969:
970: sub writesheet {
971: my ($safeeval,$makedef)=@_;
972: my $cid=&getcid($safeeval);
973: if (&Apache::lonnet::allowed('opa',$cid)) {
974: my %f=&getformulas($safeeval);
975: my $stype=&gettype($safeeval);
976: my $cnum=&getcnum($safeeval);
977: my $cdom=&getcdom($safeeval);
978: my $chome=&getchome($safeeval);
979: my $fn=&getfilename($safeeval);
980:
981: # ------------------------------------------------------------- Cache new sheet
982: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
983: # ----------------------------------------------------------------- Write sheet
984: my $sheetdata='';
985: foreach (keys(%f)) {
986: unless ($f{$_} eq 'import') {
987: $sheetdata.=&Apache::lonnet::escape($_).'='.
988: &Apache::lonnet::escape($f{$_}).'&';
989: }
990: }
991: $sheetdata=~s/\&$//;
992: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
993: $sheetdata,$chome);
994: if ($reply eq 'ok') {
995: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
996: $stype.'_spreadsheets:'.
997: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
998: $ENV{'user.domain'},
999: $chome);
1000: if ($reply eq 'ok') {
1001: if ($makedef) {
1002: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1003: ':environment:spreadsheet_default_'.$stype.'='.
1004: &Apache::lonnet::escape($fn),
1005: $chome);
1006: } else {
1007: return $reply;
1008: }
1009: } else {
1010: return $reply;
1011: }
1012: } else {
1013: return $reply;
1014: }
1015: }
1016: return 'unauthorized';
1017: }
1018:
1019: # ----------------------------------------------- Make a temp copy of the sheet
1020: # "Modified workcopy" - interactive only
1021: #
1022:
1023: sub tmpwrite {
1024: my $safeeval=shift;
1025: my $fn=$ENV{'user.name'}.'_'.
1026: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1027: &getfilename($safeeval);
1028: $fn=~s/\W/\_/g;
1029: $fn=$tmpdir.$fn.'.tmp';
1030: my $fh;
1031: if ($fh=Apache::File->new('>'.$fn)) {
1032: print $fh join("\n",&getformulas($safeeval));
1033: }
1034: }
1035:
1036: # ---------------------------------------------------------- Read the temp copy
1037:
1038: sub tmpread {
1039: my ($safeeval,$nfield,$nform)=@_;
1040: my $fn=$ENV{'user.name'}.'_'.
1041: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1042: &getfilename($safeeval);
1043: $fn=~s/\W/\_/g;
1044: $fn=$tmpdir.$fn.'.tmp';
1045: my $fh;
1046: my %fo=();
1047: if ($fh=Apache::File->new($fn)) {
1048: my $name;
1049: while ($name=<$fh>) {
1050: chomp($name);
1051: my $value=<$fh>;
1052: chomp($value);
1053: $fo{$name}=$value;
1054: }
1055: }
1056: if ($nform eq 'changesheet') {
1057: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1058: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1059: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1060: }
1061: } else {
1062: if ($nfield) { $fo{$nfield}=$nform; }
1063: }
1064: &setformulas($safeeval,%fo);
1065: }
1066:
1067: # ================================================================== Parameters
1068: # -------------------------------------------- Figure out a cascading parameter
1069: #
1070: # For this function to work
1071: #
1072: # * parmhash needs to be tied
1073: # * courseopt and useropt need to be initialized for this user and course
1074: #
1075:
1076: sub parmval {
1077: my ($what,$safeeval)=@_;
1078: my $cid=&getcid($safeeval);
1079: my $csec=&getcsec($safeeval);
1080: my $uname=&getuname($safeeval);
1081: my $udom=&getudom($safeeval);
1082: my $symb=&getusymb($safeeval);
1083:
1084: unless ($symb) { return ''; }
1085: my $result='';
1086:
1087: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1088: # ----------------------------------------------------- Cascading lookup scheme
1089: my $rwhat=$what;
1090: $what=~s/^parameter\_//;
1091: $what=~s/\_([^\_]+)$/\.$1/;
1092:
1093: my $symbparm=$symb.'.'.$what;
1094: my $mapparm=$mapname.'___(all).'.$what;
1095: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1096:
1097: my $seclevel=
1098: $usercourseprefix.'.['.
1099: $csec.'].'.$what;
1100: my $seclevelr=
1101: $usercourseprefix.'.['.
1102: $csec.'].'.$symbparm;
1103: my $seclevelm=
1104: $usercourseprefix.'.['.
1105: $csec.'].'.$mapparm;
1106:
1107: my $courselevel=
1108: $usercourseprefix.'.'.$what;
1109: my $courselevelr=
1110: $usercourseprefix.'.'.$symbparm;
1111: my $courselevelm=
1112: $usercourseprefix.'.'.$mapparm;
1113:
1114: # ---------------------------------------------------------- fourth, check user
1115:
1116: if ($uname) {
1117:
1118: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1119:
1120: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1121:
1122: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1123:
1124: }
1125:
1126: # --------------------------------------------------------- third, check course
1127:
1128: if ($csec) {
1129:
1130: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1131:
1132: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1133:
1134: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1135:
1136: }
1137:
1138: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1139:
1140: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1141:
1142: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1143:
1144: # ----------------------------------------------------- second, check map parms
1145:
1146: my $thisparm=$parmhash{$symbparm};
1147: if ($thisparm) { return $thisparm; }
1148:
1149: # -------------------------------------------------------- first, check default
1150:
1151: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1152:
1153: }
1154:
1155: # ---------------------------------------------- Update rows for course listing
1156:
1157: sub updateclasssheet {
1158: my $safeeval=shift;
1159: my $cnum=&getcnum($safeeval);
1160: my $cdom=&getcdom($safeeval);
1161: my $cid=&getcid($safeeval);
1162: my $chome=&getchome($safeeval);
1163:
1164: # ---------------------------------------------- Read class list and row labels
1165:
1166: my $classlst=&Apache::lonnet::reply
1167: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1168: my %currentlist=();
1169: my $now=time;
1170: unless ($classlst=~/^error\:/) {
1171: foreach (split(/\&/,$classlst)) {
1172: my ($name,$value)=split(/\=/,$_);
1173: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1174: my $active=1;
1175: if (($end) && ($now>$end)) { $active=0; }
1176: if ($active) {
1177: my $rowlabel='';
1178: $name=&Apache::lonnet::unescape($name);
1179: my ($sname,$sdom)=split(/\:/,$name);
1180: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1181: if ($ssec==-1) {
1182: unless ($ENV{'form.showcsv'}) {
1183: $rowlabel='<font color=red>Data not available: '.$name.
1184: '</font>';
1185: } else {
1186: $rowlabel='ERROR","'.$name.
1187: '","Data not available","","","';
1188: }
1189: } else {
1190: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1191: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1192: ':environment:firstname&middlename&lastname&generation',
1193: &Apache::lonnet::homeserver($sname,$sdom));
1194: unless ($ENV{'form.showcsv'}) {
1195: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1196: '&udom='.$sdom.'">'.
1197: $ssec.' '.$reply{$sname}.'<br>';
1198: foreach ( split(/\&/,$reply)) {
1199: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1200: }
1201: $rowlabel.='</a>';
1202: } else {
1203: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1204: my $ncount=0;
1205: foreach (split(/\&/,$reply)) {
1206: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1207: $ncount++;
1208: }
1209: unless ($ncount==4) { $rowlabel.=',""'; }
1210: $rowlabel=~s/\"$//;
1211: }
1212: }
1213: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1214: }
1215: } # end of foreach (split(/\&/,$classlst))
1216: #
1217: # -------------------- Find discrepancies between the course row table and this
1218: #
1219: my %f=&getformulas($safeeval);
1220: my $changed=0;
1221:
1222: my $maxrow=0;
1223: my %existing=();
1224:
1225: # ----------------------------------------------------------- Now obsolete rows
1226: foreach (keys(%f)) {
1227: if ($_=~/^A(\d+)/) {
1228: $maxrow=($1>$maxrow)?$1:$maxrow;
1229: $existing{$f{$_}}=1;
1230: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1231: $f{$_}='!!! Obsolete';
1232: $changed=1;
1233: }
1234: }
1235: }
1236:
1237: # -------------------------------------------------------- New and unknown keys
1238:
1239: foreach (sort keys(%currentlist)) {
1240: unless ($existing{$_}) {
1241: $changed=1;
1242: $maxrow++;
1243: $f{'A'.$maxrow}=$_;
1244: }
1245: }
1246:
1247: if ($changed) { &setformulas($safeeval,%f); }
1248:
1249: &setmaxrow($safeeval,$maxrow);
1250: &setrowlabels($safeeval,%currentlist);
1251:
1252: } else {
1253: return 'Could not access course data';
1254: }
1255: }
1256:
1257: # ----------------------------------- Update rows for student and assess sheets
1258:
1259: sub updatestudentassesssheet {
1260: my $safeeval=shift;
1261: my %bighash;
1262: my $stype=&gettype($safeeval);
1263: my %current=();
1264: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1265: # -------------------------------------------------------------------- Tie hash
1266: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1267: &GDBM_READER,0640)) {
1268: # --------------------------------------------------------- Get all assessments
1269:
1270: my %allkeys=('timestamp' =>
1271: 'Timestamp of Last Transaction<br>timestamp',
1272: 'subnumber' =>
1273: 'Number of Submissions<br>subnumber',
1274: 'tutornumber' =>
1275: 'Number of Tutor Responses<br>tutornumber',
1276: 'totalpoints' =>
1277: 'Total Points Granted<br>totalpoints');
1278:
1279: my $adduserstr='';
1280: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1281: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1282: $adduserstr='&uname='.&getuname($safeeval).
1283: '&udom='.&getudom($safeeval);
1284: }
1285:
1286: my %allassess=('_feedback' =>
1287: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1288: '">Feedback</a>',
1289: '_evaluation' =>
1290: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1291: '">Evaluation</a>',
1292: '_tutoring' =>
1293: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1294: '">Tutoring</a>',
1295: '_discussion' =>
1296: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1297: '">Discussion</a>'
1298: );
1299:
1300: foreach (keys(%bighash)) {
1301: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1302: my $mapid=$1;
1303: my $resid=$2;
1304: my $id=$mapid.'.'.$resid;
1305: my $srcf=$bighash{$_};
1306: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1307: my $symb=
1308: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1309: '___'.$resid.'___'.
1310: &Apache::lonnet::declutter($srcf);
1311: $allassess{$symb}=
1312: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1313: $bighash{'title_'.$id}.'</a>';
1314: if ($stype eq 'assesscalc') {
1315: foreach (split(/\,/,
1316: &Apache::lonnet::metadata($srcf,'keys'))) {
1317: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1318: my $key=$_;
1319: my $display=
1320: &Apache::lonnet::metadata($srcf,$key.'.display');
1321: unless ($display) {
1322: $display.=
1323: &Apache::lonnet::metadata($srcf,$key.'.name');
1324: }
1325: $display.='<br>'.$key;
1326: $allkeys{$key}=$display;
1327: }
1328: } # end of foreach
1329: }
1330: }
1331: }
1332: } # end of foreach (keys(%bighash))
1333: untie(%bighash);
1334:
1335: #
1336: # %allkeys has a list of storage and parameter displays by unikey
1337: # %allassess has a list of all resource displays by symb
1338: #
1339:
1340: if ($stype eq 'assesscalc') {
1341: %current=%allkeys;
1342: } elsif ($stype eq 'studentcalc') {
1343: %current=%allassess;
1344: }
1345: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1346: join('___;___',%current);
1347: } else {
1348: return 'Could not access course data';
1349: }
1350: # ------------------------------------------------------ Get current from cache
1351: } else {
1352: %current=split(/\_\_\_\;\_\_\_/,
1353: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1354: }
1355: # -------------------- Find discrepancies between the course row table and this
1356: #
1357: my %f=&getformulas($safeeval);
1358: my $changed=0;
1359:
1360: my $maxrow=0;
1361: my %existing=();
1362:
1363: # ----------------------------------------------------------- Now obsolete rows
1364: foreach (keys(%f)) {
1365: if ($_=~/^A(\d+)/) {
1366: $maxrow=($1>$maxrow)?$1:$maxrow;
1367: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1368: $existing{$usy}=1;
1369: unless ((defined($current{$usy})) || (!$1)) {
1370: $f{$_}='!!! Obsolete';
1371: $changed=1;
1372: } elsif ($ufn) {
1373: $current{$usy}
1374: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1375: }
1376: }
1377: }
1378:
1379: # -------------------------------------------------------- New and unknown keys
1380:
1381: foreach (keys(%current)) {
1382: unless ($existing{$_}) {
1383: $changed=1;
1384: $maxrow++;
1385: $f{'A'.$maxrow}=$_;
1386: }
1387: }
1388:
1389: if ($changed) { &setformulas($safeeval,%f); }
1390:
1391: &setmaxrow($safeeval,$maxrow);
1392: &setrowlabels($safeeval,%current);
1393:
1394: undef %current;
1395: undef %existing;
1396: }
1397:
1398: # ------------------------------------------------ Load data for one assessment
1399:
1400: sub loadstudent {
1401: my $safeeval=shift;
1402: my %c=();
1403: my %f=&getformulas($safeeval);
1404: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1405: %cachedstores=();
1406: {
1407: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1408: &getuname($safeeval).':'.
1409: &getcid($safeeval),
1410: &getuhome($safeeval));
1411: unless ($reply=~/^error\:/) {
1412: foreach ( split(/\&/,$reply)) {
1413: my ($name,$value)=split(/\=/,$_);
1414: $cachedstores{&Apache::lonnet::unescape($name)}=
1415: &Apache::lonnet::unescape($value);
1416: }
1417: }
1418: }
1419: my @assessdata=();
1420: foreach (keys(%f)) {
1421: if ($_=~/^A(\d+)/) {
1422: my $row=$1;
1423: unless (($f{$_}=~/^\!/) || ($row==0)) {
1424: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1425: @assessdata=&exportsheet(&getuname($safeeval),
1426: &getudom($safeeval),
1427: 'assesscalc',$usy,$ufn);
1428: my $index=0;
1429: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1430: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1431: if ($assessdata[$index]) {
1432: my $col=$_;
1433: if ($assessdata[$index]=~/\D/) {
1434: $c{$col.$row}="'".$assessdata[$index]."'";
1435: } else {
1436: $c{$col.$row}=$assessdata[$index];
1437: }
1438: unless ($col eq 'A') {
1439: $f{$col.$row}='import';
1440: }
1441: }
1442: $index++;
1443: }
1444: }
1445: }
1446: }
1447: $cachedassess='';
1448: undef %cachedstores;
1449: &setformulas($safeeval,%f);
1450: &setconstants($safeeval,%c);
1451: }
1452:
1453: # --------------------------------------------------- Load data for one student
1454:
1455: sub loadcourse {
1456: my ($safeeval,$r)=@_;
1457: my %c=();
1458: my %f=&getformulas($safeeval);
1459: my $total=0;
1460: foreach (keys(%f)) {
1461: if ($_=~/^A(\d+)/) {
1462: unless ($f{$_}=~/^\!/) { $total++; }
1463: }
1464: }
1465: my $now=0;
1466: my $since=time;
1467: $r->print(<<ENDPOP);
1468: <script>
1469: popwin=open('','popwin','width=400,height=100');
1470: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1471: '<h3>Spreadsheet Calculation Progress</h3>'+
1472: '<form name=popremain>'+
1473: '<input type=text size=35 name=remaining value=Starting></form>'+
1474: '</body></html>');
1475: popwin.document.close();
1476: </script>
1477: ENDPOP
1478: $r->rflush();
1479: foreach (keys(%f)) {
1480: if ($_=~/^A(\d+)/) {
1481: my $row=$1;
1482: unless (($f{$_}=~/^\!/) || ($row==0)) {
1483: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1484: 'studentcalc');
1485: undef %userrdatas;
1486: $now++;
1487: $r->print('<script>popwin.document.popremain.remaining.value="'.
1488: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1489: ' secs remaining";</script>');
1490: $r->rflush();
1491:
1492: my $index=0;
1493: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1494: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1495: if ($studentdata[$index]) {
1496: my $col=$_;
1497: if ($studentdata[$index]=~/\D/) {
1498: $c{$col.$row}="'".$studentdata[$index]."'";
1499: } else {
1500: $c{$col.$row}=$studentdata[$index];
1501: }
1502: unless ($col eq 'A') {
1503: $f{$col.$row}='import';
1504: }
1505: }
1506: $index++;
1507: }
1508: }
1509: }
1510: }
1511: &setformulas($safeeval,%f);
1512: &setconstants($safeeval,%c);
1513: $r->print('<script>popwin.close()</script>');
1514: $r->rflush();
1515: }
1516:
1517: # ------------------------------------------------ Load data for one assessment
1518:
1519: sub loadassessment {
1520: my $safeeval=shift;
1521:
1522: my $uhome=&getuhome($safeeval);
1523: my $uname=&getuname($safeeval);
1524: my $udom=&getudom($safeeval);
1525: my $symb=&getusymb($safeeval);
1526: my $cid=&getcid($safeeval);
1527: my $cnum=&getcnum($safeeval);
1528: my $cdom=&getcdom($safeeval);
1529: my $chome=&getchome($safeeval);
1530:
1531: my $namespace;
1532: unless ($namespace=$cid) { return ''; }
1533:
1534: # ----------------------------------------------------------- Get stored values
1535:
1536: my %returnhash=();
1537:
1538: if ($cachedassess eq $uname.':'.$udom) {
1539: #
1540: # get data out of the dumped stores
1541: #
1542:
1543: my $version=$cachedstores{'version:'.$symb};
1544: my $scope;
1545: for ($scope=1;$scope<=$version;$scope++) {
1546: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
1547: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1548: }
1549: }
1550:
1551: } else {
1552: #
1553: # restore individual
1554: #
1555:
1556: my $answer=&Apache::lonnet::reply(
1557: "restore:$udom:$uname:".
1558: &Apache::lonnet::escape($namespace).":".
1559: &Apache::lonnet::escape($symb),$uhome);
1560: foreach (split(/\&/,$answer)) {
1561: my ($name,$value)=split(/\=/,$_);
1562: $returnhash{&Apache::lonnet::unescape($name)}=
1563: &Apache::lonnet::unescape($value);
1564: }
1565: my $version;
1566: for ($version=1;$version<=$returnhash{'version'};$version++) {
1567: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1568: $returnhash{$_}=$returnhash{$version.':'.$_};
1569: }
1570: }
1571: }
1572: # ----------------------------- returnhash now has all stores for this resource
1573:
1574: # --------- convert all "_" to "." to be able to use libraries, multiparts, etc
1575:
1576: my @oldkeys=keys %returnhash;
1577:
1578: foreach (@oldkeys) {
1579: my $name=$_;
1580: my $value=$returnhash{$_};
1581: delete $returnhash{$_};
1582: $name=~s/\_/\./g;
1583: $returnhash{$name}=$value;
1584: }
1585:
1586: # ---------------------------- initialize coursedata and userdata for this user
1587: undef %courseopt;
1588: undef %useropt;
1589:
1590: my $userprefix=$uname.'_'.$udom.'_';
1591:
1592: unless ($uhome eq 'no_host') {
1593: # -------------------------------------------------------------- Get coursedata
1594: unless
1595: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1596: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1597: ':resourcedata',$chome);
1598: if ($reply!~/^error\:/) {
1599: $courserdatas{$cid}=$reply;
1600: $courserdatas{$cid.'.last_cache'}=time;
1601: }
1602: }
1603: foreach (split(/\&/,$courserdatas{$cid})) {
1604: my ($name,$value)=split(/\=/,$_);
1605: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1606: &Apache::lonnet::unescape($value);
1607: }
1608: # --------------------------------------------------- Get userdata (if present)
1609: unless
1610: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1611: my $reply=
1612: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1613: if ($reply!~/^error\:/) {
1614: $userrdatas{$uname.'___'.$udom}=$reply;
1615: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1616: }
1617: }
1618: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
1619: my ($name,$value)=split(/\=/,$_);
1620: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1621: &Apache::lonnet::unescape($value);
1622: }
1623: }
1624: # ----------------- now courseopt, useropt initialized for this user and course
1625: # (used by parmval)
1626:
1627: #
1628: # Load keys for this assessment only
1629: #
1630: my %thisassess=();
1631: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1632:
1633: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
1634: $thisassess{$_}=1;
1635: }
1636: #
1637: # Load parameters
1638: #
1639: my %c=();
1640:
1641: if (tie(%parmhash,'GDBM_File',
1642: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1643: my %f=&getformulas($safeeval);
1644: foreach (keys(%f)) {
1645: if ($_=~/^A/) {
1646: unless ($f{$_}=~/^\!/) {
1647: if ($f{$_}=~/^parameter/) {
1648: if ($thisassess{$f{$_}}) {
1649: my $val=&parmval($f{$_},$safeeval);
1650: $c{$_}=$val;
1651: $c{$f{$_}}=$val;
1652: }
1653: } else {
1654: my $key=$f{$_};
1655: my $ckey=$key;
1656: $key=~s/^stores\_/resource\./;
1657: $key=~s/\_/\./g;
1658: $c{$_}=$returnhash{$key};
1659: $c{$ckey}=$returnhash{$key};
1660: }
1661: }
1662: }
1663: }
1664: untie(%parmhash);
1665: }
1666: &setconstants($safeeval,%c);
1667: }
1668:
1669: # --------------------------------------------------------- Various form fields
1670:
1671: sub textfield {
1672: my ($title,$name,$value)=@_;
1673: return "\n<p><b>$title:</b><br>".
1674: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1675: }
1676:
1677: sub hiddenfield {
1678: my ($name,$value)=@_;
1679: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
1680: }
1681:
1682: sub selectbox {
1683: my ($title,$name,$value,%options)=@_;
1684: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
1685: foreach (sort keys(%options)) {
1686: $selout.='<option value="'.$_.'"';
1687: if ($_ eq $value) { $selout.=' selected'; }
1688: $selout.='>'.$options{$_}.'</option>';
1689: }
1690: return $selout.'</select>';
1691: }
1692:
1693: # =============================================== Update information in a sheet
1694: #
1695: # Add new users or assessments, etc.
1696: #
1697:
1698: sub updatesheet {
1699: my $safeeval=shift;
1700: my $stype=&gettype($safeeval);
1701: if ($stype eq 'classcalc') {
1702: return &updateclasssheet($safeeval);
1703: } else {
1704: return &updatestudentassesssheet($safeeval);
1705: }
1706: }
1707:
1708: # =================================================== Load the rows for a sheet
1709: #
1710: # Import the data for rows
1711: #
1712:
1713: sub loadrows {
1714: my ($safeeval,$r)=@_;
1715: my $stype=&gettype($safeeval);
1716: if ($stype eq 'classcalc') {
1717: &loadcourse($safeeval,$r);
1718: } elsif ($stype eq 'studentcalc') {
1719: &loadstudent($safeeval);
1720: } else {
1721: &loadassessment($safeeval);
1722: }
1723: }
1724:
1725: # ======================================================= Forced recalculation?
1726:
1727: sub checkthis {
1728: my ($keyname,$time)=@_;
1729: return ($time<$expiredates{$keyname});
1730: }
1731: sub forcedrecalc {
1732: my ($uname,$udom,$stype,$usymb)=@_;
1733: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1734: my $time=$oldsheets{$key.'.time'};
1735: if ($ENV{'form.forcerecalc'}) { return 1; }
1736: unless ($time) { return 1; }
1737: if ($stype eq 'assesscalc') {
1738: my $map=(split(/\_\_\_/,$usymb))[0];
1739: if (&checkthis('::assesscalc:',$time) ||
1740: &checkthis('::assesscalc:'.$map,$time) ||
1741: &checkthis('::assesscalc:'.$usymb,$time) ||
1742: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
1743: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
1744: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
1745: return 1;
1746: }
1747: } else {
1748: if (&checkthis('::studentcalc:',$time) ||
1749: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
1750: return 1;
1751: }
1752: }
1753: return 0;
1754: }
1755:
1756: # ============================================================== Export handler
1757: #
1758: # Non-interactive call from with program
1759: #
1760:
1761: sub exportsheet {
1762: my ($uname,$udom,$stype,$usymb,$fn)=@_;
1763: my @exportarr=();
1764:
1765: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
1766: $fn='default_'.$1;
1767: }
1768:
1769: #
1770: # Check if cached
1771: #
1772:
1773: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1774: my $found='';
1775:
1776: if ($oldsheets{$key}) {
1777: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
1778: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1779: if ($name eq $fn) {
1780: $found=$value;
1781: }
1782: }
1783: }
1784:
1785: unless ($found) {
1786: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
1787: if ($oldsheets{$key}) {
1788: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
1789: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1790: if ($name eq $fn) {
1791: $found=$value;
1792: }
1793: }
1794: }
1795: }
1796: #
1797: # Check if still valid
1798: #
1799: if ($found) {
1800: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
1801: $found='';
1802: }
1803: }
1804:
1805: if ($found) {
1806: #
1807: # Return what was cached
1808: #
1809: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
1810:
1811: } else {
1812: #
1813: # Not cached
1814: #
1815:
1816: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
1817: &readsheet($thissheet,$fn);
1818: &updatesheet($thissheet);
1819: &loadrows($thissheet);
1820: &calcsheet($thissheet);
1821: @exportarr=&exportdata($thissheet);
1822: #
1823: # Store now
1824: #
1825: my $cid=$ENV{'request.course.id'};
1826: my $current='';
1827: if ($stype eq 'studentcalc') {
1828: $current=&Apache::lonnet::reply('get:'.
1829: $ENV{'course.'.$cid.'.domain'}.':'.
1830: $ENV{'course.'.$cid.'.num'}.
1831: ':nohist_calculatedsheets:'.
1832: &Apache::lonnet::escape($key),
1833: $ENV{'course.'.$cid.'.home'});
1834: } else {
1835: $current=&Apache::lonnet::reply('get:'.
1836: &getudom($thissheet).':'.
1837: &getuname($thissheet).
1838: ':nohist_calculatedsheets_'.
1839: $ENV{'request.course.id'}.':'.
1840: &Apache::lonnet::escape($key),
1841: &getuhome($thissheet));
1842:
1843: }
1844: my %currentlystored=();
1845: unless ($current=~/^error\:/) {
1846: foreach (split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current))) {
1847: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1848: $currentlystored{$name}=$value;
1849: }
1850: }
1851: $currentlystored{$fn}=join('___;___',@exportarr);
1852:
1853: my $newstore='';
1854: foreach (keys(%currentlystored)) {
1855: if ($newstore) { $newstore.='___&___'; }
1856: $newstore.=$_.'___=___'.$currentlystored{$_};
1857: }
1858: my $now=time;
1859: if ($stype eq 'studentcalc') {
1860: &Apache::lonnet::reply('put:'.
1861: $ENV{'course.'.$cid.'.domain'}.':'.
1862: $ENV{'course.'.$cid.'.num'}.
1863: ':nohist_calculatedsheets:'.
1864: &Apache::lonnet::escape($key).'='.
1865: &Apache::lonnet::escape($newstore).'&'.
1866: &Apache::lonnet::escape($key).'.time='.$now,
1867: $ENV{'course.'.$cid.'.home'});
1868: } else {
1869: &Apache::lonnet::reply('put:'.
1870: &getudom($thissheet).':'.
1871: &getuname($thissheet).
1872: ':nohist_calculatedsheets_'.
1873: $ENV{'request.course.id'}.':'.
1874: &Apache::lonnet::escape($key).'='.
1875: &Apache::lonnet::escape($newstore).'&'.
1876: &Apache::lonnet::escape($key).'.time='.$now,
1877: &getuhome($thissheet));
1878: }
1879: }
1880: return @exportarr;
1881: }
1882: # ============================================================ Expiration Dates
1883: #
1884: # Load previously cached student spreadsheets for this course
1885: #
1886:
1887: sub expirationdates {
1888: undef %expiredates;
1889: my $cid=$ENV{'request.course.id'};
1890: my $reply=&Apache::lonnet::reply('dump:'.
1891: $ENV{'course.'.$cid.'.domain'}.':'.
1892: $ENV{'course.'.$cid.'.num'}.
1893: ':nohist_expirationdates',
1894: $ENV{'course.'.$cid.'.home'});
1895: unless ($reply=~/^error\:/) {
1896: foreach (split(/\&/,$reply)) {
1897: my ($name,$value)=split(/\=/,$_);
1898: $expiredates{&Apache::lonnet::unescape($name)}
1899: =&Apache::lonnet::unescape($value);
1900: }
1901: }
1902: }
1903:
1904: # ===================================================== Calculated sheets cache
1905: #
1906: # Load previously cached student spreadsheets for this course
1907: #
1908:
1909: sub cachedcsheets {
1910: my $cid=$ENV{'request.course.id'};
1911: my $reply=&Apache::lonnet::reply('dump:'.
1912: $ENV{'course.'.$cid.'.domain'}.':'.
1913: $ENV{'course.'.$cid.'.num'}.
1914: ':nohist_calculatedsheets',
1915: $ENV{'course.'.$cid.'.home'});
1916: unless ($reply=~/^error\:/) {
1917: foreach ( split(/\&/,$reply)) {
1918: my ($name,$value)=split(/\=/,$_);
1919: $oldsheets{&Apache::lonnet::unescape($name)}
1920: =&Apache::lonnet::unescape($value);
1921: }
1922: }
1923: }
1924:
1925: # ===================================================== Calculated sheets cache
1926: #
1927: # Load previously cached assessment spreadsheets for this student
1928: #
1929:
1930: sub cachedssheets {
1931: my ($sname,$sdom,$shome)=@_;
1932: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
1933: my $cid=$ENV{'request.course.id'};
1934: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
1935: ':nohist_calculatedsheets_'.
1936: $ENV{'request.course.id'},
1937: $shome);
1938: unless ($reply=~/^error\:/) {
1939: foreach ( split(/\&/,$reply)) {
1940: my ($name,$value)=split(/\=/,$_);
1941: $oldsheets{&Apache::lonnet::unescape($name)}
1942: =&Apache::lonnet::unescape($value);
1943: }
1944: }
1945: $loadedcaches{$sname.'_'.$sdom}=1;
1946: }
1947: }
1948:
1949: # ===================================================== Calculated sheets cache
1950: #
1951: # Load previously cached assessment spreadsheets for this student
1952: #
1953:
1954: # ================================================================ Main handler
1955: #
1956: # Interactive call to screen
1957: #
1958: #
1959:
1960:
1961: sub handler {
1962: my $r=shift;
1963:
1964: if ($r->header_only) {
1965: $r->content_type('text/html');
1966: $r->send_http_header;
1967: return OK;
1968: }
1969:
1970: # ---------------------------------------------------- Global directory configs
1971:
1972: $includedir=$r->dir_config('lonIncludes');
1973: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
1974:
1975: # ----------------------------------------------------- Needs to be in a course
1976:
1977: if ($ENV{'request.course.fn'}) {
1978:
1979: # --------------------------- Get query string for limited number of parameters
1980:
1981: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
1982: my ($name, $value) = split(/=/,$_);
1983: $value =~ tr/+/ /;
1984: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1985: if (($name eq 'uname') || ($name eq 'udom') ||
1986: ($name eq 'usymb') || ($name eq 'ufn')) {
1987: unless ($ENV{'form.'.$name}) {
1988: $ENV{'form.'.$name}=$value;
1989: }
1990: }
1991: }
1992:
1993: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
1994: $ENV{'form.ufn'}='default_'.$1;
1995: }
1996:
1997: # -------------------------------------- Interactive loading of specific sheet?
1998: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
1999: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2000: }
2001: # ------------------------------------------- Nothing there? Must be login user
2002:
2003: my $aname;
2004: my $adom;
2005:
2006: unless ($ENV{'form.uname'}) {
2007: $aname=$ENV{'user.name'};
2008: $adom=$ENV{'user.domain'};
2009: } else {
2010: $aname=$ENV{'form.uname'};
2011: $adom=$ENV{'form.udom'};
2012: }
2013:
2014: # ------------------------------------------------------------------- Open page
2015:
2016: $r->content_type('text/html');
2017: $r->header_out('Cache-control','no-cache');
2018: $r->header_out('Pragma','no-cache');
2019: $r->send_http_header;
2020:
2021: # --------------------------------------------------------------- Screen output
2022:
2023: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2024: $r->print(<<ENDSCRIPT);
2025: <script language="JavaScript">
2026:
2027: function celledit(cn,cf) {
2028: var cnf=prompt(cn,cf);
2029: if (cnf!=null) {
2030: document.sheet.unewfield.value=cn;
2031: document.sheet.unewformula.value=cnf;
2032: document.sheet.submit();
2033: }
2034: }
2035:
2036: function changesheet(cn) {
2037: document.sheet.unewfield.value=cn;
2038: document.sheet.unewformula.value='changesheet';
2039: document.sheet.submit();
2040: }
2041:
2042: </script>
2043: ENDSCRIPT
2044: $r->print('</head><body bgcolor="#FFFFFF">'.
2045: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2046: '<h1>LON-CAPA Spreadsheet</h1>'.
2047: '<form action="'.$r->uri.'" name=sheet method=post>'.
2048: &hiddenfield('uname',$ENV{'form.uname'}).
2049: &hiddenfield('udom',$ENV{'form.udom'}).
2050: &hiddenfield('usymb',$ENV{'form.usymb'}).
2051: &hiddenfield('unewfield','').
2052: &hiddenfield('unewformula',''));
2053:
2054: # ---------------------- Make sure that this gets out, even if user hits "stop"
2055:
2056: $r->rflush();
2057:
2058: # ---------------------------------------------------------------- Full recalc?
2059:
2060:
2061: if ($ENV{'form.forcerecalc'}) {
2062: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2063: undef %spreadsheets;
2064: undef %courserdatas;
2065: undef %userrdatas;
2066: undef %defaultsheets;
2067: undef %updatedata;
2068: }
2069:
2070: # ---------------------------------------- Read new sheet or modified worksheet
2071:
2072: $r->uri=~/\/(\w+)$/;
2073:
2074: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2075:
2076: # ------------------------ If a new formula had been entered, go from work copy
2077:
2078: if ($ENV{'form.unewfield'}) {
2079: $r->print('<h2>Modified Workcopy</h2>');
2080: $ENV{'form.unewformula'}=~s/\'/\"/g;
2081: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2082: $ENV{'form.unewformula'}.'<p>');
2083: &setfilename($asheet,$ENV{'form.ufn'});
2084: &tmpread($asheet,
2085: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2086:
2087: } elsif ($ENV{'form.saveas'}) {
2088: &setfilename($asheet,$ENV{'form.ufn'});
2089: &tmpread($asheet);
2090: } else {
2091: &readsheet($asheet,$ENV{'form.ufn'});
2092: }
2093:
2094: # -------------------------------------------------- Print out user information
2095:
2096: unless (&gettype($asheet) eq 'classcalc') {
2097: $r->print('<p><b>User:</b> '.&getuname($asheet).
2098: '<br><b>Domain:</b> '.&getudom($asheet));
2099: if (&getcsec($asheet) eq '-1') {
2100: $r->print('<h3><font color=red>'.
2101: 'Not a student in this course</font></h3>');
2102: } else {
2103: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2104: }
2105: if ($ENV{'form.usymb'}) {
2106: $r->print('<br><b>Assessment:</b> <tt>'.$ENV{'form.usymb'}.'</tt>');
2107: }
2108: }
2109:
2110: # ---------------------------------------------------------------- Course title
2111:
2112: $r->print('<h1>'.
2113: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2114: '</h1><h3>'.localtime().'</h3>');
2115:
2116: # ---------------------------------------------------- See if user can see this
2117:
2118: if ((&gettype($asheet) eq 'classcalc') ||
2119: (&getuname($asheet) ne $ENV{'user.name'}) ||
2120: (&getudom($asheet) ne $ENV{'user.domain'})) {
2121: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2122: $r->print(
2123: '<h1>Access Permission Denied</h1></form></body></html>');
2124: return OK;
2125: }
2126: }
2127:
2128: # ---------------------------------------------------------- Additional options
2129:
2130: $r->print(
2131: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2132: );
2133: if (&gettype($asheet) eq 'assesscalc') {
2134: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2135: &getuname($asheet).
2136: '&udom='.&getudom($asheet).
2137: '">Level up: Student Sheet</a></font><p>');
2138: }
2139:
2140: if ((&gettype($asheet) eq 'studentcalc') &&
2141: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2142: $r->print (
2143: '<p><font size=+2><a href="/adm/classcalc">'.
2144: 'Level up: Course Sheet</a></font><p>');
2145: }
2146:
2147:
2148: # ----------------------------------------------------------------- Save dialog
2149:
2150:
2151: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2152: my $fname=$ENV{'form.ufn'};
2153: $fname=~s/\_[^\_]+$//;
2154: if ($fname eq 'default') { $fname='course_default'; }
2155: $r->print('<input type=submit name=saveas value="Save as ...">'.
2156: '<input type=text size=20 name=newfn value="'.$fname.
2157: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2158: }
2159:
2160: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2161:
2162: # ----------------------------------------------------------------- Load dialog
2163: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2164: $r->print('<p><input type=submit name=load value="Load ...">'.
2165: '<select name="loadthissheet">'.
2166: '<option name="default">Default</option>');
2167: foreach (&othersheets($asheet,&gettype($asheet))) {
2168: $r->print('<option name="'.$_.'"');
2169: if ($ENV{'form.ufn'} eq $_) {
2170: $r->print(' selected');
2171: }
2172: $r->print('>'.$_.'</option>');
2173: }
2174: $r->print('</select><p>');
2175: if (&gettype($asheet) eq 'studentcalc') {
2176: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2177: }
2178: }
2179:
2180: # --------------------------------------------------------------- Cached sheets
2181:
2182: &expirationdates();
2183:
2184: undef %oldsheets;
2185: undef %loadedcaches;
2186:
2187: if (&gettype($asheet) eq 'classcalc') {
2188: $r->print("Loading previously calculated student sheets ...<br>\n");
2189: $r->rflush();
2190: &cachedcsheets();
2191: } elsif (&gettype($asheet) eq 'studentcalc') {
2192: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2193: $r->rflush();
2194: &cachedssheets(&getuname($asheet),&getudom($asheet),
2195: &getuhome($asheet));
2196: }
2197:
2198: # ----------------------------------------------------- Update sheet, load rows
2199:
2200: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2201: $r->rflush();
2202:
2203: &updatesheet($asheet);
2204:
2205: $r->print("Updated rows, loading row data ...<br>\n");
2206: $r->rflush();
2207:
2208: &loadrows($asheet,$r);
2209:
2210: $r->print("Loaded row data, calculating sheet ...<br>\n");
2211: $r->rflush();
2212:
2213: my $calcoutput=&calcsheet($asheet);
2214: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2215:
2216: # ---------------------------------------------------- See if something to save
2217:
2218: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2219: my $fname='';
2220: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2221: $fname=~s/\W/\_/g;
2222: if ($fname eq 'default') { $fname='course_default'; }
2223: $fname.='_'.&gettype($asheet);
2224: &setfilename($asheet,$fname);
2225: $ENV{'form.ufn'}=$fname;
2226: $r->print('<p>Saving spreadsheet: '.
2227: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2228: }
2229: }
2230:
2231: # ------------------------------------------------ Write the modified worksheet
2232:
2233: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2234:
2235: &tmpwrite($asheet);
2236:
2237: if (&gettype($asheet) eq 'studentcalc') {
2238: $r->print('<br>Show rows with empty A column: ');
2239: } else {
2240: $r->print('<br>Show empty rows: ');
2241: }
2242:
2243: $r->print(&hiddenfield('userselhidden','true').
2244: '<input type=checkbox name=showall onClick="submit()"');
2245:
2246: if ($ENV{'form.showall'}) {
2247: $r->print(' checked');
2248: } else {
2249: unless ($ENV{'form.userselhidden'}) {
2250: unless
2251: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2252: $r->print(' checked');
2253: $ENV{'form.showall'}=1;
2254: }
2255: }
2256: }
2257: $r->print('>');
2258: if (&gettype($asheet) eq 'classcalc') {
2259: $r->print(
2260: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2261: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2262: $r->print('>');
2263: }
2264: # ------------------------------------------------------------- Print out sheet
2265:
2266: &outsheet($r,$asheet);
2267: $r->print('</form></body></html>');
2268:
2269: # ------------------------------------------------------------------------ Done
2270: } else {
2271: # ----------------------------- Not in a course, or not allowed to modify parms
2272: $ENV{'user.error.msg'}=
2273: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2274: return HTTP_NOT_ACCEPTABLE;
2275: }
2276: return OK;
2277:
2278: }
2279:
2280: 1;
2281: __END__
2282:
2283:
2284:
2285:
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