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: # 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17,10/16 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,'-').&rown($safeeval,0);
764: $r->print($tabledata);
765:
766: my @sortby=();
767: my @sortidx=();
768: for ($row=1;$row<=$maxrow;$row++) {
769: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
770: $sortidx[$row-1]=$row-1;
771: }
772: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
773:
774: my $what='Student';
775: if (&gettype($safeeval) eq 'assesscalc') {
776: $what='Item';
777: } elsif (&gettype($safeeval) eq 'studentcalc') {
778: $what='Assessment';
779: }
780:
781: my $n=0;
782: for ($row=0;$row<$maxrow;$row++) {
783: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
784: if ($thisrow) {
785: if ($n/25==int($n/25)) {
786: $r->print("</table>\n<br>\n");
787: $r->rflush();
788: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
789: map {
790: $r->print('<td>'.$_.'</td>');
791: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
792: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
793: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
794: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
795: $r->print('</tr>');
796: }
797: $n++;
798: $r->print($thisrow);
799: }
800: }
801: $r->print('</table>');
802: }
803:
804: #
805: # ----------------------------------------------- Read list of available sheets
806: #
807:
808: sub othersheets {
809: my ($safeeval,$stype)=@_;
810:
811: my $cnum=&getcnum($safeeval);
812: my $cdom=&getcdom($safeeval);
813: my $chome=&getchome($safeeval);
814:
815: my @alternatives=();
816: my $result=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.
817: $stype.'_spreadsheets',$chome);
818: if ($result!~/^error\:/) {
819: map {
820: $alternatives[$#alternatives+1]=
821: &Apache::lonnet::unescape((split(/\=/,$_))[0]);
822: } split(/\&/,$result);
823: }
824: return @alternatives;
825: }
826:
827: #
828: # -------------------------------------- Read spreadsheet formulas for a course
829: #
830:
831: sub readsheet {
832: my ($safeeval,$fn)=@_;
833: my $stype=&gettype($safeeval);
834: my $cnum=&getcnum($safeeval);
835: my $cdom=&getcdom($safeeval);
836: my $chome=&getchome($safeeval);
837:
838: # --------- There is no filename. Look for defaults in course and global, cache
839:
840: unless($fn) {
841: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
842: $fn=&Apache::lonnet::reply('get:'.$cdom.':'.$cnum.
843: ':environment:spreadsheet_default_'.$stype,
844: $chome);
845: unless (($fn) && ($fn!~/^error\:/)) {
846: $fn='default_'.$stype;
847: }
848: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
849: }
850: }
851:
852: # ---------------------------------------------------------- fn now has a value
853:
854: &setfilename($safeeval,$fn);
855:
856: # ------------------------------------------------------ see if sheet is cached
857: my $fstring='';
858: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
859: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
860: } else {
861:
862: # ---------------------------------------------------- Not cached, need to read
863:
864: my %f=();
865:
866: if ($fn=~/^default\_/) {
867: my $sheetxml='';
868: {
869: my $fh;
870: if ($fh=Apache::File->new($includedir.
871: '/default.'.&gettype($safeeval))) {
872: $sheetxml=join('',<$fh>);
873: }
874: }
875: my $parser=HTML::TokeParser->new(\$sheetxml);
876: my $token;
877: while ($token=$parser->get_token) {
878: if ($token->[0] eq 'S') {
879: if ($token->[1] eq 'field') {
880: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
881: $parser->get_text('/field');
882: }
883: if ($token->[1] eq 'template') {
884: $f{'template_'.$token->[2]->{'col'}}=
885: $parser->get_text('/template');
886: }
887: }
888: }
889: } else {
890: my $sheet='';
891: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.$fn,
892: $chome);
893: unless ($reply=~/^error\:/) {
894: $sheet=$reply;
895: }
896: map {
897: my ($name,$value)=split(/\=/,$_);
898: $f{&Apache::lonnet::unescape($name)}=
899: &Apache::lonnet::unescape($value);
900: } split(/\&/,$sheet);
901: }
902: # --------------------------------------------------------------- Cache and set
903: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
904: &setformulas($safeeval,%f);
905: }
906: }
907:
908: # -------------------------------------------------------- Make new spreadsheet
909:
910: sub makenewsheet {
911: my ($uname,$udom,$stype,$usymb)=@_;
912: my $safeeval=initsheet($stype);
913: $safeeval->reval(
914: '$uname="'.$uname.
915: '";$udom="'.$udom.
916: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
917: '";$sheettype="'.$stype.
918: '";$usymb="'.$usymb.
919: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
920: $ENV{'request.course.id'}).
921: '";$cid="'.$ENV{'request.course.id'}.
922: '";$cfn="'.$ENV{'request.course.fn'}.
923: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
924: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
925: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
926: return $safeeval;
927: }
928:
929: # ------------------------------------------------------------ Save spreadsheet
930:
931: sub writesheet {
932: my ($safeeval,$makedef)=@_;
933: my $cid=&getcid($safeeval);
934: if (&Apache::lonnet::allowed('opa',$cid)) {
935: my %f=&getformulas($safeeval);
936: my $stype=&gettype($safeeval);
937: my $cnum=&getcnum($safeeval);
938: my $cdom=&getcdom($safeeval);
939: my $chome=&getchome($safeeval);
940: my $fn=&getfilename($safeeval);
941:
942: # ------------------------------------------------------------- Cache new sheet
943: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
944: # ----------------------------------------------------------------- Write sheet
945: my $sheetdata='';
946: map {
947: unless ($f{$_} eq 'import') {
948: $sheetdata.=&Apache::lonnet::escape($_).'='.
949: &Apache::lonnet::escape($f{$_}).'&';
950: }
951: } keys %f;
952: $sheetdata=~s/\&$//;
953: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
954: $sheetdata,$chome);
955: if ($reply eq 'ok') {
956: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
957: $stype.'_spreadsheets:'.
958: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
959: $ENV{'user.domain'},
960: $chome);
961: if ($reply eq 'ok') {
962: if ($makedef) {
963: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
964: ':environment:spreadsheet_default_'.$stype.'='.
965: &Apache::lonnet::escape($fn),
966: $chome);
967: } else {
968: return $reply;
969: }
970: } else {
971: return $reply;
972: }
973: } else {
974: return $reply;
975: }
976: }
977: return 'unauthorized';
978: }
979:
980: # ----------------------------------------------- Make a temp copy of the sheet
981: # "Modified workcopy" - interactive only
982: #
983:
984: sub tmpwrite {
985: my $safeeval=shift;
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 $fh;
992: if ($fh=Apache::File->new('>'.$fn)) {
993: print $fh join("\n",&getformulas($safeeval));
994: }
995: }
996:
997: # ---------------------------------------------------------- Read the temp copy
998:
999: sub tmpread {
1000: my ($safeeval,$nfield,$nform)=@_;
1001: my $fn=$ENV{'user.name'}.'_'.
1002: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1003: &getfilename($safeeval);
1004: $fn=~s/\W/\_/g;
1005: $fn=$tmpdir.$fn.'.tmp';
1006: my $fh;
1007: my %fo=();
1008: if ($fh=Apache::File->new($fn)) {
1009: my $name;
1010: while ($name=<$fh>) {
1011: chomp($name);
1012: my $value=<$fh>;
1013: chomp($value);
1014: $fo{$name}=$value;
1015: }
1016: }
1017: if ($nform eq 'changesheet') {
1018: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1019: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1020: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1021: }
1022: } else {
1023: if ($nfield) { $fo{$nfield}=$nform; }
1024: }
1025: &setformulas($safeeval,%fo);
1026: }
1027:
1028: # ================================================================== Parameters
1029: # -------------------------------------------- Figure out a cascading parameter
1030: #
1031: # For this function to work
1032: #
1033: # * parmhash needs to be tied
1034: # * courseopt and useropt need to be initialized for this user and course
1035: #
1036:
1037: sub parmval {
1038: my ($what,$safeeval)=@_;
1039: my $cid=&getcid($safeeval);
1040: my $csec=&getcsec($safeeval);
1041: my $uname=&getuname($safeeval);
1042: my $udom=&getudom($safeeval);
1043: my $symb=&getusymb($safeeval);
1044:
1045: unless ($symb) { return ''; }
1046: my $result='';
1047:
1048: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1049: # ----------------------------------------------------- Cascading lookup scheme
1050: my $rwhat=$what;
1051: $what=~s/^parameter\_//;
1052: $what=~s/\_/\./;
1053:
1054: my $symbparm=$symb.'.'.$what;
1055: my $mapparm=$mapname.'___(all).'.$what;
1056: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1057:
1058: my $seclevel=
1059: $usercourseprefix.'.['.
1060: $csec.'].'.$what;
1061: my $seclevelr=
1062: $usercourseprefix.'.['.
1063: $csec.'].'.$symbparm;
1064: my $seclevelm=
1065: $usercourseprefix.'.['.
1066: $csec.'].'.$mapparm;
1067:
1068: my $courselevel=
1069: $usercourseprefix.'.'.$what;
1070: my $courselevelr=
1071: $usercourseprefix.'.'.$symbparm;
1072: my $courselevelm=
1073: $usercourseprefix.'.'.$mapparm;
1074:
1075: # ---------------------------------------------------------- fourth, check user
1076:
1077: if ($uname) {
1078:
1079: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1080:
1081: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1082:
1083: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1084:
1085: }
1086:
1087: # --------------------------------------------------------- third, check course
1088:
1089: if ($csec) {
1090:
1091: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1092:
1093: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1094:
1095: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1096:
1097: }
1098:
1099: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1100:
1101: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1102:
1103: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1104:
1105: # ----------------------------------------------------- second, check map parms
1106:
1107: my $thisparm=$parmhash{$symbparm};
1108: if ($thisparm) { return $thisparm; }
1109:
1110: # -------------------------------------------------------- first, check default
1111:
1112: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1113:
1114: }
1115:
1116: # ---------------------------------------------- Update rows for course listing
1117:
1118: sub updateclasssheet {
1119: my $safeeval=shift;
1120: my $cnum=&getcnum($safeeval);
1121: my $cdom=&getcdom($safeeval);
1122: my $cid=&getcid($safeeval);
1123: my $chome=&getchome($safeeval);
1124:
1125: # ---------------------------------------------- Read class list and row labels
1126:
1127: my $classlst=&Apache::lonnet::reply
1128: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1129: my %currentlist=();
1130: my $now=time;
1131: unless ($classlst=~/^error\:/) {
1132: map {
1133: my ($name,$value)=split(/\=/,$_);
1134: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1135: my $active=1;
1136: if (($end) && ($now>$end)) { $active=0; }
1137: if ($active) {
1138: my $rowlabel='';
1139: $name=&Apache::lonnet::unescape($name);
1140: my ($sname,$sdom)=split(/\:/,$name);
1141: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1142: if ($ssec==-1) {
1143: $rowlabel='<font color=red>Data not available: '.$name.
1144: '</font>';
1145: } else {
1146: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1147: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1148: ':environment:firstname&middlename&lastname&generation',
1149: &Apache::lonnet::homeserver($sname,$sdom));
1150: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1151: '&udom='.$sdom.'">'.
1152: $ssec.' '.$reply{$sname}.'<br>';
1153: map {
1154: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1155: } split(/\&/,$reply);
1156: $rowlabel.='</a>';
1157: }
1158: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1159: }
1160: } split(/\&/,$classlst);
1161: #
1162: # -------------------- Find discrepancies between the course row table and this
1163: #
1164: my %f=&getformulas($safeeval);
1165: my $changed=0;
1166:
1167: my $maxrow=0;
1168: my %existing=();
1169:
1170: # ----------------------------------------------------------- Now obsolete rows
1171: map {
1172: if ($_=~/^A(\d+)/) {
1173: $maxrow=($1>$maxrow)?$1:$maxrow;
1174: $existing{$f{$_}}=1;
1175: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1176: $f{$_}='!!! Obsolete';
1177: $changed=1;
1178: }
1179: }
1180: } keys %f;
1181:
1182: # -------------------------------------------------------- New and unknown keys
1183:
1184: map {
1185: unless ($existing{$_}) {
1186: $changed=1;
1187: $maxrow++;
1188: $f{'A'.$maxrow}=$_;
1189: }
1190: } sort keys %currentlist;
1191:
1192: if ($changed) { &setformulas($safeeval,%f); }
1193:
1194: &setmaxrow($safeeval,$maxrow);
1195: &setrowlabels($safeeval,%currentlist);
1196:
1197: } else {
1198: return 'Could not access course data';
1199: }
1200: }
1201:
1202: # ----------------------------------- Update rows for student and assess sheets
1203:
1204: sub updatestudentassesssheet {
1205: my $safeeval=shift;
1206: my %bighash;
1207: my $stype=&gettype($safeeval);
1208: my %current=();
1209: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1210: # -------------------------------------------------------------------- Tie hash
1211: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1212: &GDBM_READER,0640)) {
1213: # --------------------------------------------------------- Get all assessments
1214:
1215: my %allkeys=('timestamp' =>
1216: 'Timestamp of Last Transaction<br>timestamp');
1217: my %allassess=();
1218:
1219: my $adduserstr='';
1220: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1221: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1222: $adduserstr='&uname='.&getuname($safeeval).
1223: '&udom='.&getudom($safeeval);
1224: }
1225:
1226: map {
1227: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1228: my $mapid=$1;
1229: my $resid=$2;
1230: my $id=$mapid.'.'.$resid;
1231: my $srcf=$bighash{$_};
1232: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1233: my $symb=
1234: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1235: '___'.$resid.'___'.
1236: &Apache::lonnet::declutter($srcf);
1237: $allassess{$symb}=
1238: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1239: $bighash{'title_'.$id}.'</a>';
1240: if ($stype eq 'assesscalc') {
1241: map {
1242: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1243: my $key=$_;
1244: my $display=
1245: &Apache::lonnet::metadata($srcf,$key.'.display');
1246: unless ($display) {
1247: $display.=
1248: &Apache::lonnet::metadata($srcf,$key.'.name');
1249: }
1250: $key=~s/\W/\_/g;
1251: $display.='<br>'.$key;
1252: $allkeys{$key}=$display;
1253: }
1254: } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
1255: }
1256: }
1257: }
1258: } keys %bighash;
1259: untie(%bighash);
1260:
1261: #
1262: # %allkeys has a list of storage and parameter displays by unikey
1263: # %allassess has a list of all resource displays by symb
1264: #
1265:
1266: if ($stype eq 'assesscalc') {
1267: %current=%allkeys;
1268: } elsif ($stype eq 'studentcalc') {
1269: %current=%allassess;
1270: }
1271: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1272: join('___;___',%current);
1273: } else {
1274: return 'Could not access course data';
1275: }
1276: # ------------------------------------------------------ Get current from cache
1277: } else {
1278: %current=split(/\_\_\_\;\_\_\_/,
1279: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1280: }
1281: # -------------------- Find discrepancies between the course row table and this
1282: #
1283: my %f=&getformulas($safeeval);
1284: my $changed=0;
1285:
1286: my $maxrow=0;
1287: my %existing=();
1288:
1289: # ----------------------------------------------------------- Now obsolete rows
1290: map {
1291: if ($_=~/^A(\d+)/) {
1292: $maxrow=($1>$maxrow)?$1:$maxrow;
1293: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1294: $existing{$usy}=1;
1295: unless ((defined($current{$usy})) || (!$1)) {
1296: $f{$_}='!!! Obsolete';
1297: $changed=1;
1298: } elsif ($ufn) {
1299: $current{$usy}
1300: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1301: }
1302: }
1303: } keys %f;
1304:
1305: # -------------------------------------------------------- New and unknown keys
1306:
1307: map {
1308: unless ($existing{$_}) {
1309: $changed=1;
1310: $maxrow++;
1311: $f{'A'.$maxrow}=$_;
1312: }
1313: } keys %current;
1314:
1315: if ($changed) { &setformulas($safeeval,%f); }
1316:
1317: &setmaxrow($safeeval,$maxrow);
1318: &setrowlabels($safeeval,%current);
1319:
1320: undef %current;
1321: undef %existing;
1322: }
1323:
1324: # ------------------------------------------------ Load data for one assessment
1325:
1326: sub loadstudent {
1327: my $safeeval=shift;
1328: my %c=();
1329: my %f=&getformulas($safeeval);
1330: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1331: %cachedstores=();
1332: {
1333: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1334: &getuname($safeeval).':'.
1335: &getcid($safeeval),
1336: &getuhome($safeeval));
1337: unless ($reply=~/^error\:/) {
1338: map {
1339: my ($name,$value)=split(/\=/,$_);
1340: $cachedstores{&Apache::lonnet::unescape($name)}=
1341: &Apache::lonnet::unescape($value);
1342: } split(/\&/,$reply);
1343: }
1344: }
1345: my @assessdata=();
1346: map {
1347: if ($_=~/^A(\d+)/) {
1348: my $row=$1;
1349: unless (($f{$_}=~/^\!/) || ($row==0)) {
1350: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1351: @assessdata=&exportsheet(&getuname($safeeval),
1352: &getudom($safeeval),
1353: 'assesscalc',$usy,$ufn);
1354: my $index=0;
1355: map {
1356: if ($assessdata[$index]) {
1357: my $col=$_;
1358: if ($assessdata[$index]=~/\D/) {
1359: $c{$col.$row}="'".$assessdata[$index]."'";
1360: } else {
1361: $c{$col.$row}=$assessdata[$index];
1362: }
1363: unless ($col eq 'A') {
1364: $f{$col.$row}='import';
1365: }
1366: }
1367: $index++;
1368: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1369: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
1370: }
1371: }
1372: } keys %f;
1373: $cachedassess='';
1374: undef %cachedstores;
1375: &setformulas($safeeval,%f);
1376: &setconstants($safeeval,%c);
1377: }
1378:
1379: # --------------------------------------------------- Load data for one student
1380:
1381: sub loadcourse {
1382: my ($safeeval,$r)=@_;
1383: my %c=();
1384: my %f=&getformulas($safeeval);
1385: my $total=0;
1386: map {
1387: if ($_=~/^A(\d+)/) {
1388: unless ($f{$_}=~/^\!/) { $total++; }
1389: }
1390: } keys %f;
1391: my $now=0;
1392: my $since=time;
1393: $r->print(<<ENDPOP);
1394: <script>
1395: popwin=open('','popwin','width=400,height=100');
1396: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1397: '<h3>Spreadsheet Calculation Progress</h3>'+
1398: '<form name=popremain>'+
1399: '<input type=text size=35 name=remaining value=Starting></form>'+
1400: '</body></html>');
1401: popwin.document.close();
1402: </script>
1403: ENDPOP
1404: $r->rflush();
1405: map {
1406: if ($_=~/^A(\d+)/) {
1407: my $row=$1;
1408: unless (($f{$_}=~/^\!/) || ($row==0)) {
1409: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1410: 'studentcalc');
1411: undef %userrdatas;
1412: $now++;
1413: $r->print('<script>popwin.document.popremain.remaining.value="'.
1414: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1415: ' secs remaining";</script>');
1416: $r->rflush();
1417:
1418: my $index=0;
1419: map {
1420: if ($studentdata[$index]) {
1421: my $col=$_;
1422: if ($studentdata[$index]=~/\D/) {
1423: $c{$col.$row}="'".$studentdata[$index]."'";
1424: } else {
1425: $c{$col.$row}=$studentdata[$index];
1426: }
1427: unless ($col eq 'A') {
1428: $f{$col.$row}='import';
1429: }
1430: }
1431: $index++;
1432: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1433: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
1434: }
1435: }
1436: } keys %f;
1437: &setformulas($safeeval,%f);
1438: &setconstants($safeeval,%c);
1439: $r->print('<script>popwin.close()</script>');
1440: $r->rflush();
1441: }
1442:
1443: # ------------------------------------------------ Load data for one assessment
1444:
1445: sub loadassessment {
1446: my $safeeval=shift;
1447:
1448: my $uhome=&getuhome($safeeval);
1449: my $uname=&getuname($safeeval);
1450: my $udom=&getudom($safeeval);
1451: my $symb=&getusymb($safeeval);
1452: my $cid=&getcid($safeeval);
1453: my $cnum=&getcnum($safeeval);
1454: my $cdom=&getcdom($safeeval);
1455: my $chome=&getchome($safeeval);
1456:
1457: my $namespace;
1458: unless ($namespace=$cid) { return ''; }
1459:
1460: # ----------------------------------------------------------- Get stored values
1461:
1462: my %returnhash=();
1463:
1464: if ($cachedassess eq $uname.':'.$udom) {
1465: #
1466: # get data out of the dumped stores
1467: #
1468:
1469: my $version=$cachedstores{'version:'.$symb};
1470: my $scope;
1471: for ($scope=1;$scope<=$version;$scope++) {
1472: map {
1473: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1474: } split(/\:/,$cachedstores{$scope.':keys:'.$symb});
1475: }
1476:
1477: } else {
1478: #
1479: # restore individual
1480: #
1481:
1482: my $answer=&Apache::lonnet::reply(
1483: "restore:$udom:$uname:".
1484: &Apache::lonnet::escape($namespace).":".
1485: &Apache::lonnet::escape($symb),$uhome);
1486: map {
1487: my ($name,$value)=split(/\=/,$_);
1488: $returnhash{&Apache::lonnet::unescape($name)}=
1489: &Apache::lonnet::unescape($value);
1490: } split(/\&/,$answer);
1491: my $version;
1492: for ($version=1;$version<=$returnhash{'version'};$version++) {
1493: map {
1494: $returnhash{$_}=$returnhash{$version.':'.$_};
1495: } split(/\:/,$returnhash{$version.':keys'});
1496: }
1497: }
1498: # ----------------------------- returnhash now has all stores for this resource
1499:
1500: # ---------------------------- initialize coursedata and userdata for this user
1501: undef %courseopt;
1502: undef %useropt;
1503:
1504: my $userprefix=$uname.'_'.$udom.'_';
1505:
1506: unless ($uhome eq 'no_host') {
1507: # -------------------------------------------------------------- Get coursedata
1508: unless
1509: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1510: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1511: ':resourcedata',$chome);
1512: if ($reply!~/^error\:/) {
1513: $courserdatas{$cid}=$reply;
1514: $courserdatas{$cid.'.last_cache'}=time;
1515: }
1516: }
1517: map {
1518: my ($name,$value)=split(/\=/,$_);
1519: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1520: &Apache::lonnet::unescape($value);
1521: } split(/\&/,$courserdatas{$cid});
1522: # --------------------------------------------------- Get userdata (if present)
1523: unless
1524: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1525: my $reply=
1526: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1527: if ($reply!~/^error\:/) {
1528: $userrdatas{$uname.'___'.$udom}=$reply;
1529: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1530: }
1531: }
1532: map {
1533: my ($name,$value)=split(/\=/,$_);
1534: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1535: &Apache::lonnet::unescape($value);
1536: } split(/\&/,$userrdatas{$uname.'___'.$udom});
1537: }
1538: # ----------------- now courseopt, useropt initialized for this user and course
1539: # (used by parmval)
1540:
1541: #
1542: # Load keys for this assessment only
1543: #
1544: my %thisassess=();
1545: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1546:
1547: map {
1548: $thisassess{$_}=1;
1549: } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
1550: #
1551: # Load parameters
1552: #
1553: my %c=();
1554:
1555: if (tie(%parmhash,'GDBM_File',
1556: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1557: my %f=&getformulas($safeeval);
1558: map {
1559: if ($_=~/^A/) {
1560: unless ($f{$_}=~/^\!/) {
1561: if ($f{$_}=~/^parameter/) {
1562: if ($thisassess{$f{$_}}) {
1563: my $val=&parmval($f{$_},$safeeval);
1564: $c{$_}=$val;
1565: $c{$f{$_}}=$val;
1566: }
1567: } else {
1568: my $key=$f{$_};
1569: my $ckey=$key;
1570: $ckey=~s/\W/\_/g;
1571: $key=~s/^stores\_/resource\./;
1572: $key=~s/\_/\./;
1573: $c{$_}=$returnhash{$key};
1574: $c{$ckey}=$returnhash{$key};
1575: }
1576: }
1577: }
1578: } keys %f;
1579: untie(%parmhash);
1580: }
1581: &setconstants($safeeval,%c);
1582: }
1583:
1584: # --------------------------------------------------------- Various form fields
1585:
1586: sub textfield {
1587: my ($title,$name,$value)=@_;
1588: return "\n<p><b>$title:</b><br>".
1589: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1590: }
1591:
1592: sub hiddenfield {
1593: my ($name,$value)=@_;
1594: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
1595: }
1596:
1597: sub selectbox {
1598: my ($title,$name,$value,%options)=@_;
1599: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
1600: map {
1601: $selout.='<option value="'.$_.'"';
1602: if ($_ eq $value) { $selout.=' selected'; }
1603: $selout.='>'.$options{$_}.'</option>';
1604: } sort keys %options;
1605: return $selout.'</select>';
1606: }
1607:
1608: # =============================================== Update information in a sheet
1609: #
1610: # Add new users or assessments, etc.
1611: #
1612:
1613: sub updatesheet {
1614: my $safeeval=shift;
1615: my $stype=&gettype($safeeval);
1616: if ($stype eq 'classcalc') {
1617: return &updateclasssheet($safeeval);
1618: } else {
1619: return &updatestudentassesssheet($safeeval);
1620: }
1621: }
1622:
1623: # =================================================== Load the rows for a sheet
1624: #
1625: # Import the data for rows
1626: #
1627:
1628: sub loadrows {
1629: my ($safeeval,$r)=@_;
1630: my $stype=&gettype($safeeval);
1631: if ($stype eq 'classcalc') {
1632: &loadcourse($safeeval,$r);
1633: } elsif ($stype eq 'studentcalc') {
1634: &loadstudent($safeeval);
1635: } else {
1636: &loadassessment($safeeval);
1637: }
1638: }
1639:
1640: # ======================================================= Forced recalculation?
1641:
1642: sub checkthis {
1643: my ($keyname,$time)=@_;
1644: return ($time<$expiredates{$keyname});
1645: }
1646: sub forcedrecalc {
1647: my ($uname,$udom,$stype,$usymb)=@_;
1648: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1649: my $time=$oldsheets{$key.'.time'};
1650: if ($ENV{'form.forcerecalc'}) { return 1; }
1651: unless ($time) { return 1; }
1652: if ($stype eq 'assesscalc') {
1653: my $map=(split(/\_\_\_/,$usymb))[0];
1654: if (&checkthis('::assesscalc:',$time) ||
1655: &checkthis('::assesscalc:'.$map,$time) ||
1656: &checkthis('::assesscalc:'.$usymb,$time) ||
1657: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
1658: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
1659: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
1660: return 1;
1661: }
1662: } else {
1663: if (&checkthis('::studentcalc:',$time) ||
1664: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
1665: return 1;
1666: }
1667: }
1668: return 0;
1669: }
1670:
1671: # ============================================================== Export handler
1672: #
1673: # Non-interactive call from with program
1674: #
1675:
1676: sub exportsheet {
1677: my ($uname,$udom,$stype,$usymb,$fn)=@_;
1678: my @exportarr=();
1679: #
1680: # Check if cached
1681: #
1682:
1683: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1684: my $found='';
1685:
1686: if ($oldsheets{$key}) {
1687: map {
1688: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1689: if ($name eq $fn) {
1690: $found=$value;
1691: }
1692: } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
1693: }
1694:
1695: unless ($found) {
1696: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
1697: if ($oldsheets{$key}) {
1698: map {
1699: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1700: if ($name eq $fn) {
1701: $found=$value;
1702: }
1703: } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
1704: }
1705: }
1706: #
1707: # Check if still valid
1708: #
1709: if ($found) {
1710: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
1711: $found='';
1712: }
1713: }
1714:
1715: if ($found) {
1716: #
1717: # Return what was cached
1718: #
1719: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
1720:
1721: } else {
1722: #
1723: # Not cached
1724: #
1725:
1726: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
1727: &readsheet($thissheet,$fn);
1728: &updatesheet($thissheet);
1729: &loadrows($thissheet);
1730: &calcsheet($thissheet);
1731: @exportarr=&exportdata($thissheet);
1732: #
1733: # Store now
1734: #
1735: my $cid=$ENV{'request.course.id'};
1736: my $current='';
1737: if ($stype eq 'studentcalc') {
1738: $current=&Apache::lonnet::reply('get:'.
1739: $ENV{'course.'.$cid.'.domain'}.':'.
1740: $ENV{'course.'.$cid.'.num'}.
1741: ':nohist_calculatedsheets:'.
1742: &Apache::lonnet::escape($key),
1743: $ENV{'course.'.$cid.'.home'});
1744: } else {
1745: $current=&Apache::lonnet::reply('get:'.
1746: &getudom($thissheet).':'.
1747: &getuname($thissheet).
1748: ':nohist_calculatedsheets_'.
1749: $ENV{'request.course.id'}.':'.
1750: &Apache::lonnet::escape($key),
1751: &getuhome($thissheet));
1752:
1753: }
1754: my %currentlystored=();
1755: unless ($current=~/^error\:/) {
1756: map {
1757: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1758: $currentlystored{$name}=$value;
1759: } split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current));
1760: }
1761: $currentlystored{$fn}=join('___;___',@exportarr);
1762:
1763: my $newstore='';
1764: map {
1765: if ($newstore) { $newstore.='___&___'; }
1766: $newstore.=$_.'___=___'.$currentlystored{$_};
1767: } keys %currentlystored;
1768: my $now=time;
1769: if ($stype eq 'studentcalc') {
1770: &Apache::lonnet::reply('put:'.
1771: $ENV{'course.'.$cid.'.domain'}.':'.
1772: $ENV{'course.'.$cid.'.num'}.
1773: ':nohist_calculatedsheets:'.
1774: &Apache::lonnet::escape($key).'='.
1775: &Apache::lonnet::escape($newstore).'&'.
1776: &Apache::lonnet::escape($key).'.time='.$now,
1777: $ENV{'course.'.$cid.'.home'});
1778: } else {
1779: &Apache::lonnet::reply('put:'.
1780: &getudom($thissheet).':'.
1781: &getuname($thissheet).
1782: ':nohist_calculatedsheets_'.
1783: $ENV{'request.course.id'}.':'.
1784: &Apache::lonnet::escape($key).'='.
1785: &Apache::lonnet::escape($newstore).'&'.
1786: &Apache::lonnet::escape($key).'.time='.$now,
1787: &getuhome($thissheet));
1788: }
1789: }
1790: return @exportarr;
1791: }
1792: # ============================================================ Expiration Dates
1793: #
1794: # Load previously cached student spreadsheets for this course
1795: #
1796:
1797: sub expirationdates {
1798: undef %expiredates;
1799: my $cid=$ENV{'request.course.id'};
1800: my $reply=&Apache::lonnet::reply('dump:'.
1801: $ENV{'course.'.$cid.'.domain'}.':'.
1802: $ENV{'course.'.$cid.'.num'}.
1803: ':nohist_expirationdates',
1804: $ENV{'course.'.$cid.'.home'});
1805: unless ($reply=~/^error\:/) {
1806: map {
1807: my ($name,$value)=split(/\=/,$_);
1808: $expiredates{&Apache::lonnet::unescape($name)}
1809: =&Apache::lonnet::unescape($value);
1810: } split(/\&/,$reply);
1811: }
1812: }
1813:
1814: # ===================================================== Calculated sheets cache
1815: #
1816: # Load previously cached student spreadsheets for this course
1817: #
1818:
1819: sub cachedcsheets {
1820: my $cid=$ENV{'request.course.id'};
1821: my $reply=&Apache::lonnet::reply('dump:'.
1822: $ENV{'course.'.$cid.'.domain'}.':'.
1823: $ENV{'course.'.$cid.'.num'}.
1824: ':nohist_calculatedsheets',
1825: $ENV{'course.'.$cid.'.home'});
1826: unless ($reply=~/^error\:/) {
1827: map {
1828: my ($name,$value)=split(/\=/,$_);
1829: $oldsheets{&Apache::lonnet::unescape($name)}
1830: =&Apache::lonnet::unescape($value);
1831: } split(/\&/,$reply);
1832: }
1833: }
1834:
1835: # ===================================================== Calculated sheets cache
1836: #
1837: # Load previously cached assessment spreadsheets for this student
1838: #
1839:
1840: sub cachedssheets {
1841: my ($sname,$sdom,$shome)=@_;
1842: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
1843: my $cid=$ENV{'request.course.id'};
1844: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
1845: ':nohist_calculatedsheets_'.
1846: $ENV{'request.course.id'},
1847: $shome);
1848: unless ($reply=~/^error\:/) {
1849: map {
1850: my ($name,$value)=split(/\=/,$_);
1851: $oldsheets{&Apache::lonnet::unescape($name)}
1852: =&Apache::lonnet::unescape($value);
1853: } split(/\&/,$reply);
1854: }
1855: $loadedcaches{$sname.'_'.$sdom}=1;
1856: }
1857: }
1858:
1859: # ===================================================== Calculated sheets cache
1860: #
1861: # Load previously cached assessment spreadsheets for this student
1862: #
1863:
1864: # ================================================================ Main handler
1865: #
1866: # Interactive call to screen
1867: #
1868: #
1869:
1870:
1871: sub handler {
1872: my $r=shift;
1873:
1874: if ($r->header_only) {
1875: $r->content_type('text/html');
1876: $r->send_http_header;
1877: return OK;
1878: }
1879:
1880: # ---------------------------------------------------- Global directory configs
1881:
1882: $includedir=$r->dir_config('lonIncludes');
1883: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
1884:
1885: # ----------------------------------------------------- Needs to be in a course
1886:
1887: if ($ENV{'request.course.fn'}) {
1888:
1889: # --------------------------- Get query string for limited number of parameters
1890:
1891: map {
1892: my ($name, $value) = split(/=/,$_);
1893: $value =~ tr/+/ /;
1894: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1895: if (($name eq 'uname') || ($name eq 'udom') ||
1896: ($name eq 'usymb') || ($name eq 'ufn')) {
1897: unless ($ENV{'form.'.$name}) {
1898: $ENV{'form.'.$name}=$value;
1899: }
1900: }
1901: } (split(/&/,$ENV{'QUERY_STRING'}));
1902:
1903: # -------------------------------------- Interactive loading of specific sheet?
1904: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
1905: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
1906: }
1907: # ------------------------------------------- Nothing there? Must be login user
1908:
1909: my $aname;
1910: my $adom;
1911:
1912: unless ($ENV{'form.uname'}) {
1913: $aname=$ENV{'user.name'};
1914: $adom=$ENV{'user.domain'};
1915: } else {
1916: $aname=$ENV{'form.uname'};
1917: $adom=$ENV{'form.udom'};
1918: }
1919:
1920: # ------------------------------------------------------------------- Open page
1921:
1922: $r->content_type('text/html');
1923: $r->header_out('Cache-control','no-cache');
1924: $r->header_out('Pragma','no-cache');
1925: $r->send_http_header;
1926:
1927: # --------------------------------------------------------------- Screen output
1928:
1929: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
1930: $r->print(<<ENDSCRIPT);
1931: <script language="JavaScript">
1932:
1933: function celledit(cn,cf) {
1934: var cnf=prompt(cn,cf);
1935: if (cnf!=null) {
1936: document.sheet.unewfield.value=cn;
1937: document.sheet.unewformula.value=cnf;
1938: document.sheet.submit();
1939: }
1940: }
1941:
1942: function changesheet(cn) {
1943: document.sheet.unewfield.value=cn;
1944: document.sheet.unewformula.value='changesheet';
1945: document.sheet.submit();
1946: }
1947:
1948: </script>
1949: ENDSCRIPT
1950: $r->print('</head><body bgcolor="#FFFFFF">'.
1951: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
1952: '<h1>LON-CAPA Spreadsheet</h1>'.
1953: '<form action="'.$r->uri.'" name=sheet method=post>'.
1954: &hiddenfield('uname',$ENV{'form.uname'}).
1955: &hiddenfield('udom',$ENV{'form.udom'}).
1956: &hiddenfield('usymb',$ENV{'form.usymb'}).
1957: &hiddenfield('unewfield','').
1958: &hiddenfield('unewformula',''));
1959:
1960: # ---------------------- Make sure that this gets out, even if user hits "stop"
1961:
1962: $r->rflush();
1963:
1964: # ---------------------------------------------------------------- Full recalc?
1965:
1966:
1967: if ($ENV{'form.forcerecalc'}) {
1968: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
1969: undef %spreadsheets;
1970: undef %courserdatas;
1971: undef %userrdatas;
1972: undef %defaultsheets;
1973: undef %updatedata;
1974: }
1975:
1976: # ---------------------------------------- Read new sheet or modified worksheet
1977:
1978: $r->uri=~/\/(\w+)$/;
1979:
1980: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
1981:
1982: # ------------------------ If a new formula had been entered, go from work copy
1983:
1984: if ($ENV{'form.unewfield'}) {
1985: $r->print('<h2>Modified Workcopy</h2>');
1986: $ENV{'form.unewformula'}=~s/\'/\"/g;
1987: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
1988: $ENV{'form.unewformula'}.'<p>');
1989: &setfilename($asheet,$ENV{'form.ufn'});
1990: &tmpread($asheet,
1991: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
1992:
1993: } elsif ($ENV{'form.saveas'}) {
1994: &setfilename($asheet,$ENV{'form.ufn'});
1995: &tmpread($asheet);
1996: } else {
1997: &readsheet($asheet,$ENV{'form.ufn'});
1998: }
1999:
2000: # -------------------------------------------------- Print out user information
2001:
2002: unless (&gettype($asheet) eq 'classcalc') {
2003: $r->print('<p><b>User:</b> '.&getuname($asheet).
2004: '<br><b>Domain:</b> '.&getudom($asheet));
2005: if (&getcsec($asheet) eq '-1') {
2006: $r->print('<h3><font color=red>'.
2007: 'Not a student in this course</font></h3>');
2008: } else {
2009: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2010: }
2011: }
2012:
2013: # ---------------------------------------------------------------- Course title
2014:
2015: $r->print('<h1>'.
2016: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2017: '</h1><h3>'.localtime().'</h3>');
2018:
2019: # ---------------------------------------------------- See if user can see this
2020:
2021: if ((&gettype($asheet) eq 'classcalc') ||
2022: (&getuname($asheet) ne $ENV{'user.name'}) ||
2023: (&getudom($asheet) ne $ENV{'user.domain'})) {
2024: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2025: $r->print(
2026: '<h1>Access Permission Denied</h1></form></body></html>');
2027: return OK;
2028: }
2029: }
2030:
2031: # ---------------------------------------------------------- Additional options
2032:
2033: $r->print(
2034: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2035: );
2036: if (&gettype($asheet) eq 'assesscalc') {
2037: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2038: &getuname($asheet).
2039: '&udom='.&getudom($asheet).
2040: '">Level up: Student Sheet</a></font><p>');
2041: }
2042:
2043: if ((&gettype($asheet) eq 'studentcalc') &&
2044: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2045: $r->print (
2046: '<p><font size=+2><a href="/adm/classcalc">'.
2047: 'Level up: Course Sheet</a></font><p>');
2048: }
2049:
2050:
2051: # ----------------------------------------------------------------- Save dialog
2052:
2053:
2054: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2055: my $fname=$ENV{'form.ufn'};
2056: $fname=~s/\_[^\_]+$//;
2057: if ($fname eq 'default') { $fname='course_default'; }
2058: $r->print('<input type=submit name=saveas value="Save as ...">'.
2059: '<input type=text size=20 name=newfn value="'.$fname.
2060: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2061: }
2062:
2063: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2064:
2065: # ----------------------------------------------------------------- Load dialog
2066: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2067: $r->print('<p><input type=submit name=load value="Load ...">'.
2068: '<select name="loadthissheet">'.
2069: '<option name="default">Default</option>');
2070: map {
2071: $r->print('<option name="'.$_.'"');
2072: if ($ENV{'form.ufn'} eq $_) {
2073: $r->print(' selected');
2074: }
2075: $r->print('>'.$_.'</option>');
2076: } &othersheets($asheet,&gettype($asheet));
2077: $r->print('</select><p>');
2078: if (&gettype($asheet) eq 'studentcalc') {
2079: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2080: }
2081: }
2082:
2083: # --------------------------------------------------------------- Cached sheets
2084:
2085: &expirationdates();
2086:
2087: undef %oldsheets;
2088: undef %loadedcaches;
2089:
2090: if (&gettype($asheet) eq 'classcalc') {
2091: $r->print("Loading previously calculated student sheets ...<br>\n");
2092: $r->rflush();
2093: &cachedcsheets();
2094: } elsif (&gettype($asheet) eq 'studentcalc') {
2095: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2096: $r->rflush();
2097: &cachedssheets(&getuname($asheet),&getudom($asheet),
2098: &getuhome($asheet));
2099: }
2100:
2101: # ----------------------------------------------------- Update sheet, load rows
2102:
2103: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2104: $r->rflush();
2105:
2106: &updatesheet($asheet);
2107:
2108: $r->print("Updated rows, loading row data ...<br>\n");
2109: $r->rflush();
2110:
2111: &loadrows($asheet,$r);
2112:
2113: $r->print("Loaded row data, calculating sheet ...<br>\n");
2114: $r->rflush();
2115:
2116: my $calcoutput=&calcsheet($asheet);
2117: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2118:
2119: # ---------------------------------------------------- See if something to save
2120:
2121: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2122: my $fname='';
2123: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2124: $fname=~s/\W/\_/g;
2125: if ($fname eq 'default') { $fname='course_default'; }
2126: $fname.='_'.&gettype($asheet);
2127: &setfilename($asheet,$fname);
2128: $ENV{'form.ufn'}=$fname;
2129: $r->print('<p>Saving spreadsheet: '.
2130: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2131: }
2132: }
2133:
2134: # ------------------------------------------------ Write the modified worksheet
2135:
2136: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2137:
2138: &tmpwrite($asheet);
2139:
2140: if (&gettype($asheet) eq 'studentcalc') {
2141: $r->print('<br>Show rows with empty A column: ');
2142: } else {
2143: $r->print('<br>Show empty rows: ');
2144: }
2145: $r->print('<input type=checkbox name=showall onClick="submit()"');
2146: if ($ENV{'form.showall'}) { $r->print(' checked'); }
2147: $r->print('>');
2148:
2149: # ------------------------------------------------------------- Print out sheet
2150:
2151: &outsheet($r,$asheet);
2152: $r->print('</form></body></html>');
2153:
2154: # ------------------------------------------------------------------------ Done
2155: } else {
2156: # ----------------------------- Not in a course, or not allowed to modify parms
2157: $ENV{'user.error.msg'}=
2158: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2159: return HTTP_NOT_ACCEPTABLE;
2160: }
2161: return OK;
2162:
2163: }
2164:
2165: 1;
2166: __END__
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