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: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13 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: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
680: my $showf=0;
681: my $proc;
682: my $maxred;
683: my $sheettype=&gettype($safeeval);
684: if ($sheettype eq 'studentcalc') {
685: $proc='&outrowassess';
686: $maxred=26;
687: } else {
688: $proc='&outrow';
689: }
690: if ($sheettype eq 'assesscalc') {
691: $maxred=1;
692: } else {
693: $maxred=26;
694: }
695: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
696: map {
697: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
698: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
699: if ((($vl ne '') || ($vl eq '0')) &&
700: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
701: if ($showf==0) { $vl=$_; }
702: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
703: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
704: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
705: if ($vl eq '') {
706: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
707: }
708: $rowdata.=
709: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
710: '</a></td>';
711: } else {
712: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
713: }
714: $showf++;
715: } $safeeval->reval($proc.'('.$n.')');
716: if ($ENV{'form.showall'} || ($dataflag)) {
717: return $rowdata.'</tr>';
718: } else {
719: return '';
720: }
721: }
722:
723: # ------------------------------------------------------------- Print out sheet
724:
725: sub outsheet {
726: my ($r,$safeeval)=@_;
727: my $maxred;
728: my $realm;
729: if (&gettype($safeeval) eq 'assesscalc') {
730: $maxred=1;
731: $realm='Assessment';
732: } elsif (&gettype($safeeval) eq 'studentcalc') {
733: $maxred=26;
734: $realm='User';
735: } else {
736: $maxred=26;
737: $realm='Course';
738: }
739: my $maxyellow=52-$maxred;
740: my $tabledata=
741: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
742: $realm.'</font></th>'.
743: '<td bgcolor=#FFDDDD colspan='.$maxred.
744: '><b><font size=+1>Import</font></b></td>'.
745: '<td colspan='.$maxyellow.
746: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
747: my $showf=0;
748: map {
749: $showf++;
750: if ($showf<=$maxred) {
751: $tabledata.='<td bgcolor="#FFDDDD">';
752: } else {
753: $tabledata.='<td>';
754: }
755: $tabledata.="<b><font size=+1>$_</font></b></td>";
756: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
757: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
758: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
759: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
760: $tabledata.='</tr>';
761: my $row;
762: my $maxrow=&getmaxrow($safeeval);
763: $tabledata.=&rown($safeeval,'-');
764: $r->print($tabledata);
765: my @rowprt=();
766: for ($row=0;$row<=$maxrow;$row++) {
767: $rowprt[$row]=&rown($safeeval,$row);
768: }
769: my $n=0;
770: for ($row=0;$row<=$maxrow;$row++) {
771: if ($rowprt[$row]) {
772: if ((($n-1)/25)==int(($n-1)/25)) {
773: my $what='Student';
774: if (&gettype($safeeval) eq 'assesscalc') {
775: $what='Item';
776: } elsif (&gettype($safeeval) eq 'studentcalc') {
777: $what='Assessment';
778: }
779: $r->print("</table>\n<br><table border=2>".
780: '<tr><td> <td>'.$what.'</td>');
781: map {
782: $r->print('<td>'.$_.'</td>');
783: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
784: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
785: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
786: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
787: $r->print('</tr>');
788: }
789: $n++;
790: $r->print($rowprt[$row]);
791: }
792: }
793: $r->print('</table>');
794: undef @rowprt;
795: }
796:
797: #
798: # ----------------------------------------------- Read list of available sheets
799: #
800:
801: sub othersheets {
802: my ($safeeval,$stype)=@_;
803:
804: my $cnum=&getcnum($safeeval);
805: my $cdom=&getcdom($safeeval);
806: my $chome=&getchome($safeeval);
807:
808: my @alternatives=();
809: my $result=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.
810: $stype.'_spreadsheets',$chome);
811: if ($result!~/^error\:/) {
812: map {
813: $alternatives[$#alternatives+1]=
814: &Apache::lonnet::unescape((split(/\=/,$_))[0]);
815: } split(/\&/,$result);
816: }
817: return @alternatives;
818: }
819:
820: #
821: # -------------------------------------- Read spreadsheet formulas for a course
822: #
823:
824: sub readsheet {
825: my ($safeeval,$fn)=@_;
826: my $stype=&gettype($safeeval);
827: my $cnum=&getcnum($safeeval);
828: my $cdom=&getcdom($safeeval);
829: my $chome=&getchome($safeeval);
830:
831: # --------- There is no filename. Look for defaults in course and global, cache
832:
833: unless($fn) {
834: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
835: $fn=&Apache::lonnet::reply('get:'.$cdom.':'.$cnum.
836: ':environment:spreadsheet_default_'.$stype,
837: $chome);
838: unless (($fn) && ($fn!~/^error\:/)) {
839: $fn='default_'.$stype;
840: }
841: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
842: }
843: }
844:
845: # ---------------------------------------------------------- fn now has a value
846:
847: &setfilename($safeeval,$fn);
848:
849: # ------------------------------------------------------ see if sheet is cached
850: my $fstring='';
851: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
852: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
853: } else {
854:
855: # ---------------------------------------------------- Not cached, need to read
856:
857: my %f=();
858:
859: if ($fn=~/^default\_/) {
860: my $sheetxml='';
861: {
862: my $fh;
863: if ($fh=Apache::File->new($includedir.
864: '/default.'.&gettype($safeeval))) {
865: $sheetxml=join('',<$fh>);
866: }
867: }
868: my $parser=HTML::TokeParser->new(\$sheetxml);
869: my $token;
870: while ($token=$parser->get_token) {
871: if ($token->[0] eq 'S') {
872: if ($token->[1] eq 'field') {
873: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
874: $parser->get_text('/field');
875: }
876: if ($token->[1] eq 'template') {
877: $f{'template_'.$token->[2]->{'col'}}=
878: $parser->get_text('/template');
879: }
880: }
881: }
882: } else {
883: my $sheet='';
884: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.$fn,
885: $chome);
886: unless ($reply=~/^error\:/) {
887: $sheet=$reply;
888: }
889: map {
890: my ($name,$value)=split(/\=/,$_);
891: $f{&Apache::lonnet::unescape($name)}=
892: &Apache::lonnet::unescape($value);
893: } split(/\&/,$sheet);
894: }
895: # --------------------------------------------------------------- Cache and set
896: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
897: &setformulas($safeeval,%f);
898: }
899: }
900:
901: # -------------------------------------------------------- Make new spreadsheet
902:
903: sub makenewsheet {
904: my ($uname,$udom,$stype,$usymb)=@_;
905: my $safeeval=initsheet($stype);
906: $safeeval->reval(
907: '$uname="'.$uname.
908: '";$udom="'.$udom.
909: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
910: '";$sheettype="'.$stype.
911: '";$usymb="'.$usymb.
912: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
913: $ENV{'request.course.id'}).
914: '";$cid="'.$ENV{'request.course.id'}.
915: '";$cfn="'.$ENV{'request.course.fn'}.
916: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
917: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
918: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
919: return $safeeval;
920: }
921:
922: # ------------------------------------------------------------ Save spreadsheet
923:
924: sub writesheet {
925: my ($safeeval,$makedef)=@_;
926: my $cid=&getcid($safeeval);
927: if (&Apache::lonnet::allowed('opa',$cid)) {
928: my %f=&getformulas($safeeval);
929: my $stype=&gettype($safeeval);
930: my $cnum=&getcnum($safeeval);
931: my $cdom=&getcdom($safeeval);
932: my $chome=&getchome($safeeval);
933: my $fn=&getfilename($safeeval);
934:
935: # ------------------------------------------------------------- Cache new sheet
936: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
937: # ----------------------------------------------------------------- Write sheet
938: my $sheetdata='';
939: map {
940: unless ($f{$_} eq 'import') {
941: $sheetdata.=&Apache::lonnet::escape($_).'='.
942: &Apache::lonnet::escape($f{$_}).'&';
943: }
944: } keys %f;
945: $sheetdata=~s/\&$//;
946: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
947: $sheetdata,$chome);
948: if ($reply eq 'ok') {
949: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
950: $stype.'_spreadsheets:'.
951: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
952: $ENV{'user.domain'},
953: $chome);
954: if ($reply eq 'ok') {
955: if ($makedef) {
956: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
957: ':environment:spreadsheet_default_'.$stype.'='.
958: &Apache::lonnet::escape($fn),
959: $chome);
960: } else {
961: return $reply;
962: }
963: } else {
964: return $reply;
965: }
966: } else {
967: return $reply;
968: }
969: }
970: return 'unauthorized';
971: }
972:
973: # ----------------------------------------------- Make a temp copy of the sheet
974: # "Modified workcopy" - interactive only
975: #
976:
977: sub tmpwrite {
978: my $safeeval=shift;
979: my $fn=$ENV{'user.name'}.'_'.
980: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
981: &getfilename($safeeval);
982: $fn=~s/\W/\_/g;
983: $fn=$tmpdir.$fn.'.tmp';
984: my $fh;
985: if ($fh=Apache::File->new('>'.$fn)) {
986: print $fh join("\n",&getformulas($safeeval));
987: }
988: }
989:
990: # ---------------------------------------------------------- Read the temp copy
991:
992: sub tmpread {
993: my ($safeeval,$nfield,$nform)=@_;
994: my $fn=$ENV{'user.name'}.'_'.
995: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
996: &getfilename($safeeval);
997: $fn=~s/\W/\_/g;
998: $fn=$tmpdir.$fn.'.tmp';
999: my $fh;
1000: my %fo=();
1001: if ($fh=Apache::File->new($fn)) {
1002: my $name;
1003: while ($name=<$fh>) {
1004: chomp($name);
1005: my $value=<$fh>;
1006: chomp($value);
1007: $fo{$name}=$value;
1008: }
1009: }
1010: if ($nform eq 'changesheet') {
1011: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1012: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1013: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1014: }
1015: } else {
1016: if ($nfield) { $fo{$nfield}=$nform; }
1017: }
1018: &setformulas($safeeval,%fo);
1019: }
1020:
1021: # ================================================================== Parameters
1022: # -------------------------------------------- Figure out a cascading parameter
1023: #
1024: # For this function to work
1025: #
1026: # * parmhash needs to be tied
1027: # * courseopt and useropt need to be initialized for this user and course
1028: #
1029:
1030: sub parmval {
1031: my ($what,$safeeval)=@_;
1032: my $cid=&getcid($safeeval);
1033: my $csec=&getcsec($safeeval);
1034: my $uname=&getuname($safeeval);
1035: my $udom=&getudom($safeeval);
1036: my $symb=&getusymb($safeeval);
1037:
1038: unless ($symb) { return ''; }
1039: my $result='';
1040:
1041: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1042: # ----------------------------------------------------- Cascading lookup scheme
1043: my $rwhat=$what;
1044: $what=~s/^parameter\_//;
1045: $what=~s/\_/\./;
1046:
1047: my $symbparm=$symb.'.'.$what;
1048: my $mapparm=$mapname.'___(all).'.$what;
1049: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1050:
1051: my $seclevel=
1052: $usercourseprefix.'.['.
1053: $csec.'].'.$what;
1054: my $seclevelr=
1055: $usercourseprefix.'.['.
1056: $csec.'].'.$symbparm;
1057: my $seclevelm=
1058: $usercourseprefix.'.['.
1059: $csec.'].'.$mapparm;
1060:
1061: my $courselevel=
1062: $usercourseprefix.'.'.$what;
1063: my $courselevelr=
1064: $usercourseprefix.'.'.$symbparm;
1065: my $courselevelm=
1066: $usercourseprefix.'.'.$mapparm;
1067:
1068: # ---------------------------------------------------------- fourth, check user
1069:
1070: if ($uname) {
1071:
1072: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1073:
1074: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1075:
1076: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1077:
1078: }
1079:
1080: # --------------------------------------------------------- third, check course
1081:
1082: if ($csec) {
1083:
1084: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1085:
1086: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1087:
1088: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1089:
1090: }
1091:
1092: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1093:
1094: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1095:
1096: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1097:
1098: # ----------------------------------------------------- second, check map parms
1099:
1100: my $thisparm=$parmhash{$symbparm};
1101: if ($thisparm) { return $thisparm; }
1102:
1103: # -------------------------------------------------------- first, check default
1104:
1105: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1106:
1107: }
1108:
1109: # ---------------------------------------------- Update rows for course listing
1110:
1111: sub updateclasssheet {
1112: my $safeeval=shift;
1113: my $cnum=&getcnum($safeeval);
1114: my $cdom=&getcdom($safeeval);
1115: my $cid=&getcid($safeeval);
1116: my $chome=&getchome($safeeval);
1117:
1118: # ---------------------------------------------- Read class list and row labels
1119:
1120: my $classlst=&Apache::lonnet::reply
1121: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1122: my %currentlist=();
1123: my $now=time;
1124: unless ($classlst=~/^error\:/) {
1125: map {
1126: my ($name,$value)=split(/\=/,$_);
1127: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1128: my $active=1;
1129: if (($end) && ($now>$end)) { $active=0; }
1130: if ($active) {
1131: my $rowlabel='';
1132: $name=&Apache::lonnet::unescape($name);
1133: my ($sname,$sdom)=split(/\:/,$name);
1134: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1135: if ($ssec==-1) {
1136: $rowlabel='<font color=red>Data not available: '.$name.
1137: '</font>';
1138: } else {
1139: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1140: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1141: ':environment:firstname&middlename&lastname&generation',
1142: &Apache::lonnet::homeserver($sname,$sdom));
1143: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1144: '&udom='.$sdom.'">'.
1145: $ssec.' '.$reply{$sname}.'<br>';
1146: map {
1147: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1148: } split(/\&/,$reply);
1149: $rowlabel.='</a>';
1150: }
1151: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1152: }
1153: } split(/\&/,$classlst);
1154: #
1155: # -------------------- Find discrepancies between the course row table and this
1156: #
1157: my %f=&getformulas($safeeval);
1158: my $changed=0;
1159:
1160: my $maxrow=0;
1161: my %existing=();
1162:
1163: # ----------------------------------------------------------- Now obsolete rows
1164: map {
1165: if ($_=~/^A(\d+)/) {
1166: $maxrow=($1>$maxrow)?$1:$maxrow;
1167: $existing{$f{$_}}=1;
1168: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1169: $f{$_}='!!! Obsolete';
1170: $changed=1;
1171: }
1172: }
1173: } keys %f;
1174:
1175: # -------------------------------------------------------- New and unknown keys
1176:
1177: map {
1178: unless ($existing{$_}) {
1179: $changed=1;
1180: $maxrow++;
1181: $f{'A'.$maxrow}=$_;
1182: }
1183: } sort keys %currentlist;
1184:
1185: if ($changed) { &setformulas($safeeval,%f); }
1186:
1187: &setmaxrow($safeeval,$maxrow);
1188: &setrowlabels($safeeval,%currentlist);
1189:
1190: } else {
1191: return 'Could not access course data';
1192: }
1193: }
1194:
1195: # ----------------------------------- Update rows for student and assess sheets
1196:
1197: sub updatestudentassesssheet {
1198: my $safeeval=shift;
1199: my %bighash;
1200: my $stype=&gettype($safeeval);
1201: my %current=();
1202: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1203: # -------------------------------------------------------------------- Tie hash
1204: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1205: &GDBM_READER,0640)) {
1206: # --------------------------------------------------------- Get all assessments
1207:
1208: my %allkeys=('timestamp' =>
1209: 'Timestamp of Last Transaction<br>timestamp');
1210: my %allassess=();
1211:
1212: my $adduserstr='';
1213: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1214: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1215: $adduserstr='&uname='.&getuname($safeeval).
1216: '&udom='.&getudom($safeeval);
1217: }
1218:
1219: map {
1220: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1221: my $mapid=$1;
1222: my $resid=$2;
1223: my $id=$mapid.'.'.$resid;
1224: my $srcf=$bighash{$_};
1225: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1226: my $symb=
1227: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1228: '___'.$resid.'___'.
1229: &Apache::lonnet::declutter($srcf);
1230: $allassess{$symb}=
1231: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1232: $bighash{'title_'.$id}.'</a>';
1233: if ($stype eq 'assesscalc') {
1234: map {
1235: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1236: my $key=$_;
1237: my $display=
1238: &Apache::lonnet::metadata($srcf,$key.'.display');
1239: unless ($display) {
1240: $display.=
1241: &Apache::lonnet::metadata($srcf,$key.'.name');
1242: }
1243: $display.='<br>'.$key;
1244: $allkeys{$key}=$display;
1245: }
1246: } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
1247: }
1248: }
1249: }
1250: } keys %bighash;
1251: untie(%bighash);
1252:
1253: #
1254: # %allkeys has a list of storage and parameter displays by unikey
1255: # %allassess has a list of all resource displays by symb
1256: #
1257:
1258: if ($stype eq 'assesscalc') {
1259: %current=%allkeys;
1260: } elsif ($stype eq 'studentcalc') {
1261: %current=%allassess;
1262: }
1263: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1264: join('___;___',%current);
1265: } else {
1266: return 'Could not access course data';
1267: }
1268: # ------------------------------------------------------ Get current from cache
1269: } else {
1270: %current=split(/\_\_\_\;\_\_\_/,
1271: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1272: }
1273: # -------------------- Find discrepancies between the course row table and this
1274: #
1275: my %f=&getformulas($safeeval);
1276: my $changed=0;
1277:
1278: my $maxrow=0;
1279: my %existing=();
1280:
1281: # ----------------------------------------------------------- Now obsolete rows
1282: map {
1283: if ($_=~/^A(\d+)/) {
1284: $maxrow=($1>$maxrow)?$1:$maxrow;
1285: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1286: $existing{$usy}=1;
1287: unless ((defined($current{$usy})) || (!$1)) {
1288: $f{$_}='!!! Obsolete';
1289: $changed=1;
1290: } elsif ($ufn) {
1291: $current{$usy}
1292: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1293: }
1294: }
1295: } keys %f;
1296:
1297: # -------------------------------------------------------- New and unknown keys
1298:
1299: map {
1300: unless ($existing{$_}) {
1301: $changed=1;
1302: $maxrow++;
1303: $f{'A'.$maxrow}=$_;
1304: }
1305: } keys %current;
1306:
1307: if ($changed) { &setformulas($safeeval,%f); }
1308:
1309: &setmaxrow($safeeval,$maxrow);
1310: &setrowlabels($safeeval,%current);
1311:
1312: undef %current;
1313: undef %existing;
1314: }
1315:
1316: # ------------------------------------------------ Load data for one assessment
1317:
1318: sub loadstudent {
1319: my $safeeval=shift;
1320: my %c=();
1321: my %f=&getformulas($safeeval);
1322: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1323: %cachedstores=();
1324: {
1325: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1326: &getuname($safeeval).':'.
1327: &getcid($safeeval),
1328: &getuhome($safeeval));
1329: unless ($reply=~/^error\:/) {
1330: map {
1331: my ($name,$value)=split(/\=/,$_);
1332: $cachedstores{&Apache::lonnet::unescape($name)}=
1333: &Apache::lonnet::unescape($value);
1334: } split(/\&/,$reply);
1335: }
1336: }
1337: my @assessdata=();
1338: map {
1339: if ($_=~/^A(\d+)/) {
1340: my $row=$1;
1341: unless (($f{$_}=~/^\!/) || ($row==0)) {
1342: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1343: @assessdata=&exportsheet(&getuname($safeeval),
1344: &getudom($safeeval),
1345: 'assesscalc',$usy,$ufn);
1346: my $index=0;
1347: map {
1348: if ($assessdata[$index]) {
1349: my $col=$_;
1350: if ($assessdata[$index]=~/\D/) {
1351: $c{$col.$row}="'".$assessdata[$index]."'";
1352: } else {
1353: $c{$col.$row}=$assessdata[$index];
1354: }
1355: unless ($col eq 'A') {
1356: $f{$col.$row}='import';
1357: }
1358: }
1359: $index++;
1360: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1361: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
1362: }
1363: }
1364: } keys %f;
1365: $cachedassess='';
1366: undef %cachedstores;
1367: &setformulas($safeeval,%f);
1368: &setconstants($safeeval,%c);
1369: }
1370:
1371: # --------------------------------------------------- Load data for one student
1372:
1373: sub loadcourse {
1374: my ($safeeval,$r)=@_;
1375: my %c=();
1376: my %f=&getformulas($safeeval);
1377: my $total=0;
1378: map {
1379: if ($_=~/^A(\d+)/) {
1380: unless ($f{$_}=~/^\!/) { $total++; }
1381: }
1382: } keys %f;
1383: my $now=0;
1384: my $since=time;
1385: $r->print(<<ENDPOP);
1386: <script>
1387: popwin=open('','popwin','width=400,height=100');
1388: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1389: '<h3>Spreadsheet Calculation Progress</h3>'+
1390: '<form name=popremain>'+
1391: '<input type=text size=35 name=remaining value=Starting></form>'+
1392: '</body></html>');
1393: popwin.document.close();
1394: </script>
1395: ENDPOP
1396: $r->rflush();
1397: map {
1398: if ($_=~/^A(\d+)/) {
1399: my $row=$1;
1400: unless (($f{$_}=~/^\!/) || ($row==0)) {
1401: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1402: 'studentcalc');
1403: undef %userrdatas;
1404: $now++;
1405: $r->print('<script>popwin.document.popremain.remaining.value="'.
1406: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1407: ' secs remaining";</script>');
1408: $r->rflush();
1409:
1410: my $index=0;
1411: map {
1412: if ($studentdata[$index]) {
1413: my $col=$_;
1414: if ($studentdata[$index]=~/\D/) {
1415: $c{$col.$row}="'".$studentdata[$index]."'";
1416: } else {
1417: $c{$col.$row}=$studentdata[$index];
1418: }
1419: unless ($col eq 'A') {
1420: $f{$col.$row}='import';
1421: }
1422: }
1423: $index++;
1424: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1425: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
1426: }
1427: }
1428: } keys %f;
1429: &setformulas($safeeval,%f);
1430: &setconstants($safeeval,%c);
1431: $r->print('<script>popwin.close()</script>');
1432: $r->rflush();
1433: }
1434:
1435: # ------------------------------------------------ Load data for one assessment
1436:
1437: sub loadassessment {
1438: my $safeeval=shift;
1439:
1440: my $uhome=&getuhome($safeeval);
1441: my $uname=&getuname($safeeval);
1442: my $udom=&getudom($safeeval);
1443: my $symb=&getusymb($safeeval);
1444: my $cid=&getcid($safeeval);
1445: my $cnum=&getcnum($safeeval);
1446: my $cdom=&getcdom($safeeval);
1447: my $chome=&getchome($safeeval);
1448:
1449: my $namespace;
1450: unless ($namespace=$cid) { return ''; }
1451:
1452: # ----------------------------------------------------------- Get stored values
1453:
1454: my %returnhash=();
1455:
1456: if ($cachedassess eq $uname.':'.$udom) {
1457: #
1458: # get data out of the dumped stores
1459: #
1460:
1461: my $version=$cachedstores{'version:'.$symb};
1462: my $scope;
1463: for ($scope=1;$scope<=$version;$scope++) {
1464: map {
1465: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1466: } split(/\:/,$cachedstores{$scope.':keys:'.$symb});
1467: }
1468:
1469: } else {
1470: #
1471: # restore individual
1472: #
1473:
1474: my $answer=&Apache::lonnet::reply(
1475: "restore:$udom:$uname:".
1476: &Apache::lonnet::escape($namespace).":".
1477: &Apache::lonnet::escape($symb),$uhome);
1478: map {
1479: my ($name,$value)=split(/\=/,$_);
1480: $returnhash{&Apache::lonnet::unescape($name)}=
1481: &Apache::lonnet::unescape($value);
1482: } split(/\&/,$answer);
1483: my $version;
1484: for ($version=1;$version<=$returnhash{'version'};$version++) {
1485: map {
1486: $returnhash{$_}=$returnhash{$version.':'.$_};
1487: } split(/\:/,$returnhash{$version.':keys'});
1488: }
1489: }
1490: # ----------------------------- returnhash now has all stores for this resource
1491:
1492: # ---------------------------- initialize coursedata and userdata for this user
1493: undef %courseopt;
1494: undef %useropt;
1495:
1496: my $userprefix=$uname.'_'.$udom.'_';
1497:
1498: unless ($uhome eq 'no_host') {
1499: # -------------------------------------------------------------- Get coursedata
1500: unless
1501: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1502: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1503: ':resourcedata',$chome);
1504: if ($reply!~/^error\:/) {
1505: $courserdatas{$cid}=$reply;
1506: $courserdatas{$cid.'.last_cache'}=time;
1507: }
1508: }
1509: map {
1510: my ($name,$value)=split(/\=/,$_);
1511: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1512: &Apache::lonnet::unescape($value);
1513: } split(/\&/,$courserdatas{$cid});
1514: # --------------------------------------------------- Get userdata (if present)
1515: unless
1516: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1517: my $reply=
1518: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1519: if ($reply!~/^error\:/) {
1520: $userrdatas{$uname.'___'.$udom}=$reply;
1521: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1522: }
1523: }
1524: map {
1525: my ($name,$value)=split(/\=/,$_);
1526: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1527: &Apache::lonnet::unescape($value);
1528: } split(/\&/,$userrdatas{$uname.'___'.$udom});
1529: }
1530: # ----------------- now courseopt, useropt initialized for this user and course
1531: # (used by parmval)
1532:
1533: #
1534: # Load keys for this assessment only
1535: #
1536: my %thisassess=();
1537: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1538:
1539: map {
1540: $thisassess{$_}=1;
1541: } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
1542: #
1543: # Load parameters
1544: #
1545: my %c=();
1546:
1547: if (tie(%parmhash,'GDBM_File',
1548: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1549: my %f=&getformulas($safeeval);
1550: map {
1551: if ($_=~/^A/) {
1552: unless ($f{$_}=~/^\!/) {
1553: if ($f{$_}=~/^parameter/) {
1554: if ($thisassess{$f{$_}}) {
1555: my $val=&parmval($f{$_},$safeeval);
1556: $c{$_}=$val;
1557: $c{$f{$_}}=$val;
1558: }
1559: } else {
1560: my $key=$f{$_};
1561: my $ckey=$key;
1562: $key=~s/^stores\_/resource\./;
1563: $key=~s/\_/\./;
1564: $c{$_}=$returnhash{$key};
1565: $c{$ckey}=$returnhash{$key};
1566: }
1567: }
1568: }
1569: } keys %f;
1570: untie(%parmhash);
1571: }
1572: &setconstants($safeeval,%c);
1573: }
1574:
1575: # --------------------------------------------------------- Various form fields
1576:
1577: sub textfield {
1578: my ($title,$name,$value)=@_;
1579: return "\n<p><b>$title:</b><br>".
1580: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1581: }
1582:
1583: sub hiddenfield {
1584: my ($name,$value)=@_;
1585: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
1586: }
1587:
1588: sub selectbox {
1589: my ($title,$name,$value,%options)=@_;
1590: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
1591: map {
1592: $selout.='<option value="'.$_.'"';
1593: if ($_ eq $value) { $selout.=' selected'; }
1594: $selout.='>'.$options{$_}.'</option>';
1595: } sort keys %options;
1596: return $selout.'</select>';
1597: }
1598:
1599: # =============================================== Update information in a sheet
1600: #
1601: # Add new users or assessments, etc.
1602: #
1603:
1604: sub updatesheet {
1605: my $safeeval=shift;
1606: my $stype=&gettype($safeeval);
1607: if ($stype eq 'classcalc') {
1608: return &updateclasssheet($safeeval);
1609: } else {
1610: return &updatestudentassesssheet($safeeval);
1611: }
1612: }
1613:
1614: # =================================================== Load the rows for a sheet
1615: #
1616: # Import the data for rows
1617: #
1618:
1619: sub loadrows {
1620: my ($safeeval,$r)=@_;
1621: my $stype=&gettype($safeeval);
1622: if ($stype eq 'classcalc') {
1623: &loadcourse($safeeval,$r);
1624: } elsif ($stype eq 'studentcalc') {
1625: &loadstudent($safeeval);
1626: } else {
1627: &loadassessment($safeeval);
1628: }
1629: }
1630:
1631: # ======================================================= Forced recalculation?
1632:
1633: sub checkthis {
1634: my ($keyname,$time)=@_;
1635: return ($time<$expiredates{$keyname});
1636: }
1637: sub forcedrecalc {
1638: my ($uname,$udom,$stype,$usymb)=@_;
1639: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1640: my $time=$oldsheets{$key.'.time'};
1641: if ($ENV{'form.forcerecalc'}) { return 1; }
1642: unless ($time) { return 1; }
1643: if ($stype eq 'assesscalc') {
1644: my $map=(split(/\_\_\_/,$usymb))[0];
1645: if (&checkthis('::assesscalc:',$time) ||
1646: &checkthis('::assesscalc:'.$map,$time) ||
1647: &checkthis('::assesscalc:'.$usymb,$time) ||
1648: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
1649: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
1650: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
1651: return 1;
1652: }
1653: } else {
1654: if (&checkthis('::studentcalc:',$time) ||
1655: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
1656: return 1;
1657: }
1658: }
1659: return 0;
1660: }
1661:
1662: # ============================================================== Export handler
1663: #
1664: # Non-interactive call from with program
1665: #
1666:
1667: sub exportsheet {
1668: my ($uname,$udom,$stype,$usymb,$fn)=@_;
1669: my @exportarr=();
1670: #
1671: # Check if cached
1672: #
1673:
1674: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1675: my $found='';
1676:
1677: if ($oldsheets{$key}) {
1678: map {
1679: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1680: if ($name eq $fn) {
1681: $found=$value;
1682: }
1683: } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
1684: }
1685:
1686: unless ($found) {
1687: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
1688: if ($oldsheets{$key}) {
1689: map {
1690: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1691: if ($name eq $fn) {
1692: $found=$value;
1693: }
1694: } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
1695: }
1696: }
1697: #
1698: # Check if still valid
1699: #
1700: if ($found) {
1701: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
1702: $found='';
1703: }
1704: }
1705:
1706: if ($found) {
1707: #
1708: # Return what was cached
1709: #
1710: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
1711:
1712: } else {
1713: #
1714: # Not cached
1715: #
1716:
1717: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
1718: &readsheet($thissheet,$fn);
1719: &updatesheet($thissheet);
1720: &loadrows($thissheet);
1721: &calcsheet($thissheet);
1722: @exportarr=&exportdata($thissheet);
1723: #
1724: # Store now
1725: #
1726: my $cid=$ENV{'request.course.id'};
1727: my $current='';
1728: if ($stype eq 'studentcalc') {
1729: $current=&Apache::lonnet::reply('get:'.
1730: $ENV{'course.'.$cid.'.domain'}.':'.
1731: $ENV{'course.'.$cid.'.num'}.
1732: ':nohist_calculatedsheets:'.
1733: &Apache::lonnet::escape($key),
1734: $ENV{'course.'.$cid.'.home'});
1735: } else {
1736: $current=&Apache::lonnet::reply('get:'.
1737: &getudom($thissheet).':'.
1738: &getuname($thissheet).
1739: ':nohist_calculatedsheets_'.
1740: $ENV{'request.course.id'}.':'.
1741: &Apache::lonnet::escape($key),
1742: &getuhome($thissheet));
1743:
1744: }
1745: my %currentlystored=();
1746: unless ($current=~/^error\:/) {
1747: map {
1748: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1749: $currentlystored{$name}=$value;
1750: } split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current));
1751: }
1752: $currentlystored{$fn}=join('___;___',@exportarr);
1753:
1754: my $newstore='';
1755: map {
1756: if ($newstore) { $newstore.='___&___'; }
1757: $newstore.=$_.'___=___'.$currentlystored{$_};
1758: } keys %currentlystored;
1759: my $now=time;
1760: if ($stype eq 'studentcalc') {
1761: &Apache::lonnet::reply('put:'.
1762: $ENV{'course.'.$cid.'.domain'}.':'.
1763: $ENV{'course.'.$cid.'.num'}.
1764: ':nohist_calculatedsheets:'.
1765: &Apache::lonnet::escape($key).'='.
1766: &Apache::lonnet::escape($newstore).'&'.
1767: &Apache::lonnet::escape($key).'.time='.$now,
1768: $ENV{'course.'.$cid.'.home'});
1769: } else {
1770: &Apache::lonnet::reply('put:'.
1771: &getudom($thissheet).':'.
1772: &getuname($thissheet).
1773: ':nohist_calculatedsheets_'.
1774: $ENV{'request.course.id'}.':'.
1775: &Apache::lonnet::escape($key).'='.
1776: &Apache::lonnet::escape($newstore).'&'.
1777: &Apache::lonnet::escape($key).'.time='.$now,
1778: &getuhome($thissheet));
1779: }
1780: }
1781: return @exportarr;
1782: }
1783: # ============================================================ Expiration Dates
1784: #
1785: # Load previously cached student spreadsheets for this course
1786: #
1787:
1788: sub expirationdates {
1789: undef %expiredates;
1790: my $cid=$ENV{'request.course.id'};
1791: my $reply=&Apache::lonnet::reply('dump:'.
1792: $ENV{'course.'.$cid.'.domain'}.':'.
1793: $ENV{'course.'.$cid.'.num'}.
1794: ':nohist_expirationdates',
1795: $ENV{'course.'.$cid.'.home'});
1796: unless ($reply=~/^error\:/) {
1797: map {
1798: my ($name,$value)=split(/\=/,$_);
1799: $expiredates{&Apache::lonnet::unescape($name)}
1800: =&Apache::lonnet::unescape($value);
1801: } split(/\&/,$reply);
1802: }
1803: }
1804:
1805: # ===================================================== Calculated sheets cache
1806: #
1807: # Load previously cached student spreadsheets for this course
1808: #
1809:
1810: sub cachedcsheets {
1811: my $cid=$ENV{'request.course.id'};
1812: my $reply=&Apache::lonnet::reply('dump:'.
1813: $ENV{'course.'.$cid.'.domain'}.':'.
1814: $ENV{'course.'.$cid.'.num'}.
1815: ':nohist_calculatedsheets',
1816: $ENV{'course.'.$cid.'.home'});
1817: unless ($reply=~/^error\:/) {
1818: map {
1819: my ($name,$value)=split(/\=/,$_);
1820: $oldsheets{&Apache::lonnet::unescape($name)}
1821: =&Apache::lonnet::unescape($value);
1822: } split(/\&/,$reply);
1823: }
1824: }
1825:
1826: # ===================================================== Calculated sheets cache
1827: #
1828: # Load previously cached assessment spreadsheets for this student
1829: #
1830:
1831: sub cachedssheets {
1832: my ($sname,$sdom,$shome)=@_;
1833: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
1834: my $cid=$ENV{'request.course.id'};
1835: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
1836: ':nohist_calculatedsheets_'.
1837: $ENV{'request.course.id'},
1838: $shome);
1839: unless ($reply=~/^error\:/) {
1840: map {
1841: my ($name,$value)=split(/\=/,$_);
1842: $oldsheets{&Apache::lonnet::unescape($name)}
1843: =&Apache::lonnet::unescape($value);
1844: } split(/\&/,$reply);
1845: }
1846: $loadedcaches{$sname.'_'.$sdom}=1;
1847: }
1848: }
1849:
1850: # ===================================================== Calculated sheets cache
1851: #
1852: # Load previously cached assessment spreadsheets for this student
1853: #
1854:
1855: # ================================================================ Main handler
1856: #
1857: # Interactive call to screen
1858: #
1859: #
1860:
1861:
1862: sub handler {
1863: my $r=shift;
1864:
1865: if ($r->header_only) {
1866: $r->content_type('text/html');
1867: $r->send_http_header;
1868: return OK;
1869: }
1870:
1871: # ---------------------------------------------------- Global directory configs
1872:
1873: $includedir=$r->dir_config('lonIncludes');
1874: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
1875:
1876: # ----------------------------------------------------- Needs to be in a course
1877:
1878: if ($ENV{'request.course.fn'}) {
1879:
1880: # --------------------------- Get query string for limited number of parameters
1881:
1882: map {
1883: my ($name, $value) = split(/=/,$_);
1884: $value =~ tr/+/ /;
1885: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1886: if (($name eq 'uname') || ($name eq 'udom') ||
1887: ($name eq 'usymb') || ($name eq 'ufn')) {
1888: unless ($ENV{'form.'.$name}) {
1889: $ENV{'form.'.$name}=$value;
1890: }
1891: }
1892: } (split(/&/,$ENV{'QUERY_STRING'}));
1893:
1894: # -------------------------------------- Interactive loading of specific sheet?
1895: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
1896: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
1897: }
1898: # ------------------------------------------- Nothing there? Must be login user
1899:
1900: my $aname;
1901: my $adom;
1902:
1903: unless ($ENV{'form.uname'}) {
1904: $aname=$ENV{'user.name'};
1905: $adom=$ENV{'user.domain'};
1906: } else {
1907: $aname=$ENV{'form.uname'};
1908: $adom=$ENV{'form.udom'};
1909: }
1910:
1911: # ------------------------------------------------------------------- Open page
1912:
1913: $r->content_type('text/html');
1914: $r->header_out('Cache-control','no-cache');
1915: $r->header_out('Pragma','no-cache');
1916: $r->send_http_header;
1917:
1918: # --------------------------------------------------------------- Screen output
1919:
1920: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
1921: $r->print(<<ENDSCRIPT);
1922: <script language="JavaScript">
1923:
1924: function celledit(cn,cf) {
1925: var cnf=prompt(cn,cf);
1926: if (cnf!=null) {
1927: document.sheet.unewfield.value=cn;
1928: document.sheet.unewformula.value=cnf;
1929: document.sheet.submit();
1930: }
1931: }
1932:
1933: function changesheet(cn) {
1934: document.sheet.unewfield.value=cn;
1935: document.sheet.unewformula.value='changesheet';
1936: document.sheet.submit();
1937: }
1938:
1939: </script>
1940: ENDSCRIPT
1941: $r->print('</head><body bgcolor="#FFFFFF">'.
1942: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
1943: '<h1>LON-CAPA Spreadsheet</h1>'.
1944: '<form action="'.$r->uri.'" name=sheet method=post>'.
1945: &hiddenfield('uname',$ENV{'form.uname'}).
1946: &hiddenfield('udom',$ENV{'form.udom'}).
1947: &hiddenfield('usymb',$ENV{'form.usymb'}).
1948: &hiddenfield('unewfield','').
1949: &hiddenfield('unewformula',''));
1950:
1951: # ---------------------- Make sure that this gets out, even if user hits "stop"
1952:
1953: $r->rflush();
1954:
1955: # ---------------------------------------------------------------- Full recalc?
1956:
1957:
1958: if ($ENV{'form.forcerecalc'}) {
1959: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
1960: undef %spreadsheets;
1961: undef %courserdatas;
1962: undef %userrdatas;
1963: undef %defaultsheets;
1964: undef %updatedata;
1965: }
1966:
1967: # ---------------------------------------- Read new sheet or modified worksheet
1968:
1969: $r->uri=~/\/(\w+)$/;
1970:
1971: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
1972:
1973: # ------------------------ If a new formula had been entered, go from work copy
1974:
1975: if ($ENV{'form.unewfield'}) {
1976: $r->print('<h2>Modified Workcopy</h2>');
1977: $ENV{'form.unewformula'}=~s/\'/\"/g;
1978: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
1979: $ENV{'form.unewformula'}.'<p>');
1980: &setfilename($asheet,$ENV{'form.ufn'});
1981: &tmpread($asheet,
1982: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
1983:
1984: } elsif ($ENV{'form.saveas'}) {
1985: &setfilename($asheet,$ENV{'form.ufn'});
1986: &tmpread($asheet);
1987: } else {
1988: &readsheet($asheet,$ENV{'form.ufn'});
1989: }
1990:
1991: # -------------------------------------------------- Print out user information
1992:
1993: unless (&gettype($asheet) eq 'classcalc') {
1994: $r->print('<p><b>User:</b> '.&getuname($asheet).
1995: '<br><b>Domain:</b> '.&getudom($asheet));
1996: if (&getcsec($asheet) eq '-1') {
1997: $r->print('<h3><font color=red>'.
1998: 'Not a student in this course</font></h3>');
1999: } else {
2000: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2001: }
2002: }
2003:
2004: # ---------------------------------------------------------------- Course title
2005:
2006: $r->print('<h1>'.
2007: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2008: '</h1><h3>'.localtime().'</h3>');
2009:
2010: # ---------------------------------------------------- See if user can see this
2011:
2012: if ((&gettype($asheet) eq 'classcalc') ||
2013: (&getuname($asheet) ne $ENV{'user.name'}) ||
2014: (&getudom($asheet) ne $ENV{'user.domain'})) {
2015: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2016: $r->print(
2017: '<h1>Access Permission Denied</h1></form></body></html>');
2018: return OK;
2019: }
2020: }
2021:
2022: # ---------------------------------------------------------- Additional options
2023:
2024: $r->print(
2025: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2026: );
2027: if (&gettype($asheet) eq 'assesscalc') {
2028: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2029: &getuname($asheet).
2030: '&udom='.&getudom($asheet).
2031: '">Level up: Student Sheet</a></font><p>');
2032: }
2033:
2034: if ((&gettype($asheet) eq 'studentcalc') &&
2035: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2036: $r->print (
2037: '<p><font size=+2><a href="/adm/classcalc">'.
2038: 'Level up: Course Sheet</a></font><p>');
2039: }
2040:
2041:
2042: # ----------------------------------------------------------------- Save dialog
2043:
2044:
2045: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2046: my $fname=$ENV{'form.ufn'};
2047: $fname=~s/\_[^\_]+$//;
2048: if ($fname eq 'default') { $fname='course_default'; }
2049: $r->print('<input type=submit name=saveas value="Save as ...">'.
2050: '<input type=text size=20 name=newfn value="'.$fname.
2051: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2052: }
2053:
2054: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2055:
2056: # ----------------------------------------------------------------- Load dialog
2057: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2058: $r->print('<p><input type=submit name=load value="Load ...">'.
2059: '<select name="loadthissheet">'.
2060: '<option name="default">Default</option>');
2061: map {
2062: $r->print('<option name="'.$_.'"');
2063: if ($ENV{'form.ufn'} eq $_) {
2064: $r->print(' selected');
2065: }
2066: $r->print('>'.$_.'</option>');
2067: } &othersheets($asheet,&gettype($asheet));
2068: $r->print('</select><p>');
2069: if (&gettype($asheet) eq 'studentcalc') {
2070: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2071: }
2072: }
2073:
2074: # --------------------------------------------------------------- Cached sheets
2075:
2076: &expirationdates();
2077:
2078: undef %oldsheets;
2079: undef %loadedcaches;
2080:
2081: if (&gettype($asheet) eq 'classcalc') {
2082: $r->print("Loading previously calculated student sheets ...<br>\n");
2083: $r->rflush();
2084: &cachedcsheets();
2085: } elsif (&gettype($asheet) eq 'studentcalc') {
2086: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2087: $r->rflush();
2088: &cachedssheets(&getuname($asheet),&getudom($asheet),
2089: &getuhome($asheet));
2090: }
2091:
2092: # ----------------------------------------------------- Update sheet, load rows
2093:
2094: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2095: $r->rflush();
2096:
2097: &updatesheet($asheet);
2098:
2099: $r->print("Updated rows, loading row data ...<br>\n");
2100: $r->rflush();
2101:
2102: &loadrows($asheet,$r);
2103:
2104: $r->print("Loaded row data, calculating sheet ...<br>\n");
2105: $r->rflush();
2106:
2107: my $calcoutput=&calcsheet($asheet);
2108: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2109:
2110: # ---------------------------------------------------- See if something to save
2111:
2112: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2113: my $fname='';
2114: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2115: $fname=~s/\W/\_/g;
2116: if ($fname eq 'default') { $fname='course_default'; }
2117: $fname.='_'.&gettype($asheet);
2118: &setfilename($asheet,$fname);
2119: $ENV{'form.ufn'}=$fname;
2120: $r->print('<p>Saving spreadsheet: '.
2121: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2122: }
2123: }
2124:
2125: # ------------------------------------------------ Write the modified worksheet
2126:
2127: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2128:
2129: &tmpwrite($asheet);
2130:
2131: if (&gettype($asheet) eq 'studentcalc') {
2132: $r->print('<br>Show rows with empty A column: ');
2133: } else {
2134: $r->print('<br>Show empty rows: ');
2135: }
2136: $r->print('<input type=checkbox name=showall onClick="submit()"');
2137: if ($ENV{'form.showall'}) { $r->print(' checked'); }
2138: $r->print('>');
2139:
2140: # ------------------------------------------------------------- Print out sheet
2141:
2142: &outsheet($r,$asheet);
2143: $r->print('</form></body></html>');
2144:
2145: # ------------------------------------------------------------------------ Done
2146: } else {
2147: # ----------------------------- Not in a course, or not allowed to modify parms
2148: $ENV{'user.error.msg'}=
2149: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2150: return HTTP_NOT_ACCEPTABLE;
2151: }
2152: return OK;
2153:
2154: }
2155:
2156: 1;
2157: __END__
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