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