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: # 10/16,10/17,10/20,11/05 Gerd Kortemeyer
11:
12: package Apache::lonspreadsheet;
13:
14: use strict;
15: use Safe;
16: use Safe::Hole;
17: use Opcode;
18: use Apache::lonnet;
19: use Apache::Constants qw(:common :http);
20: use GDBM_File;
21: use HTML::TokeParser;
22:
23: #
24: # Caches for previously calculated spreadsheets
25: #
26:
27: my %oldsheets;
28: my %loadedcaches;
29: my %expiredates;
30:
31: #
32: # Cache for stores of an individual user
33: #
34:
35: my $cachedassess;
36: my %cachedstores;
37:
38: #
39: # These cache hashes need to be independent of user, resource and course
40: # (user and course can/should be in the keys)
41: #
42:
43: my %spreadsheets;
44: my %courserdatas;
45: my %userrdatas;
46: my %defaultsheets;
47: my %updatedata;
48:
49: #
50: # These global hashes are dependent on user, course and resource,
51: # and need to be initialized every time when a sheet is calculated
52: #
53: my %courseopt;
54: my %useropt;
55: my %parmhash;
56:
57: # Stuff that only the screen handler can know
58:
59: my $includedir;
60: my $tmpdir;
61:
62: # =============================================================================
63: # ===================================== Implements an instance of a spreadsheet
64:
65: sub initsheet {
66: my $safeeval = new Safe(shift);
67: my $safehole = new Safe::Hole;
68: $safeeval->permit("entereval");
69: $safeeval->permit(":base_math");
70: $safeeval->permit("sort");
71: $safeeval->deny(":base_io");
72: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
73: my $code=<<'ENDDEFS';
74: # ---------------------------------------------------- Inside of the safe space
75:
76: #
77: # f: formulas
78: # t: intermediate format (variable references expanded)
79: # v: output values
80: # c: preloaded constants (A-column)
81: # rl: row label
82: # os: other spreadsheets (for student spreadsheet only)
83:
84: undef %v;
85: undef %t;
86: undef %f;
87: undef %c;
88: undef %rl;
89: undef @os;
90:
91: $maxrow=0;
92: $sheettype='';
93:
94: # filename/reference of the sheet
95:
96: $filename='';
97:
98: # user data
99: $uname='';
100: $uhome='';
101: $udom='';
102:
103: # course data
104:
105: $csec='';
106: $chome='';
107: $cnum='';
108: $cdom='';
109: $cid='';
110: $cfn='';
111:
112: # symb
113:
114: $usymb='';
115:
116: sub mask {
117: my ($lower,$upper)=@_;
118:
119: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
120: my $la=$1;
121: my $ld=$2;
122:
123: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
124: my $ua=$1;
125: my $ud=$2;
126: my $alpha='';
127: my $num='';
128:
129: if (($la eq '*') || ($ua eq '*')) {
130: $alpha='[A-Za-z]';
131: } else {
132: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
133: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
134: $alpha='['.$la.'-'.$ua.']';
135: } else {
136: $alpha='['.$la.'-Za-'.$ua.']';
137: }
138: }
139:
140: if (($ld eq '*') || ($ud eq '*')) {
141: $num='\d+';
142: } else {
143: if (length($ld)!=length($ud)) {
144: $num.='(';
145: map {
146: $num.='['.$_.'-9]';
147: } ($ld=~m/\d/g);
148: if (length($ud)-length($ld)>1) {
149: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
150: }
151: $num.='|';
152: map {
153: $num.='[0-'.$_.']';
154: } ($ud=~m/\d/g);
155: $num.=')';
156: } else {
157: my @lda=($ld=~m/\d/g);
158: my @uda=($ud=~m/\d/g);
159: my $i; $j=0; $notdone=1;
160: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
161: if ($lda[$i]==$uda[$i]) {
162: $num.=$lda[$i];
163: $j=$i;
164: } else {
165: $notdone=0;
166: }
167: }
168: if ($j<$#lda-1) {
169: $num.='('.$lda[$j+1];
170: for ($i=$j+2;$i<=$#lda;$i++) {
171: $num.='['.$lda[$i].'-9]';
172: }
173: if ($uda[$j+1]-$lda[$j+1]>1) {
174: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
175: ($#lda-$j-1).'}';
176: }
177: $num.='|'.$uda[$j+1];
178: for ($i=$j+2;$i<=$#uda;$i++) {
179: $num.='[0-'.$uda[$i].']';
180: }
181: $num.=')';
182: } else {
183: if ($lda[$#lda]!=$uda[$#uda]) {
184: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
185: }
186: }
187: }
188: }
189: return '^'.$alpha.$num."\$";
190: }
191:
192: sub NUM {
193: my $mask=mask(@_);
194: my $num=0;
195: map {
196: $num++;
197: } grep /$mask/,keys %v;
198: return $num;
199: }
200:
201: sub BIN {
202: my ($low,$high,$lower,$upper)=@_;
203: my $mask=mask($lower,$upper);
204: my $num=0;
205: map {
206: if (($v{$_}>=$low) && ($v{$_}<=$high)) {
207: $num++;
208: }
209: } grep /$mask/,keys %v;
210: return $num;
211: }
212:
213:
214: sub SUM {
215: my $mask=mask(@_);
216: my $sum=0;
217: map {
218: $sum+=$v{$_};
219: } grep /$mask/,keys %v;
220: return $sum;
221: }
222:
223: sub MEAN {
224: my $mask=mask(@_);
225: my $sum=0; my $num=0;
226: map {
227: $sum+=$v{$_};
228: $num++;
229: } grep /$mask/,keys %v;
230: if ($num) {
231: return $sum/$num;
232: } else {
233: return undef;
234: }
235: }
236:
237: sub STDDEV {
238: my $mask=mask(@_);
239: my $sum=0; my $num=0;
240: map {
241: $sum+=$v{$_};
242: $num++;
243: } grep /$mask/,keys %v;
244: unless ($num>1) { return undef; }
245: my $mean=$sum/$num;
246: $sum=0;
247: map {
248: $sum+=($v{$_}-$mean)**2;
249: } grep /$mask/,keys %v;
250: return sqrt($sum/($num-1));
251: }
252:
253: sub PROD {
254: my $mask=mask(@_);
255: my $prod=1;
256: map {
257: $prod*=$v{$_};
258: } grep /$mask/,keys %v;
259: return $prod;
260: }
261:
262: sub MAX {
263: my $mask=mask(@_);
264: my $max='-';
265: map {
266: unless ($max) { $max=$v{$_}; }
267: if (($v{$_}>$max) || ($max eq '-')) { $max=$v{$_}; }
268: } grep /$mask/,keys %v;
269: return $max;
270: }
271:
272: sub MIN {
273: my $mask=mask(@_);
274: my $min='-';
275: map {
276: unless ($max) { $max=$v{$_}; }
277: if (($v{$_}<$min) || ($min eq '-')) { $min=$v{$_}; }
278: } grep /$mask/,keys %v;
279: return $min;
280: }
281:
282: sub SUMMAX {
283: my ($num,$lower,$upper)=@_;
284: my $mask=mask($lower,$upper);
285: my @inside=();
286: map {
287: $inside[$#inside+1]=$v{$_};
288: } grep /$mask/,keys %v;
289: @inside=sort(@inside);
290: my $sum=0; my $i;
291: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
292: $sum+=$inside[$i];
293: }
294: return $sum;
295: }
296:
297: sub SUMMIN {
298: my ($num,$lower,$upper)=@_;
299: my $mask=mask($lower,$upper);
300: my @inside=();
301: map {
302: $inside[$#inside+1]=$v{$_};
303: } grep /$mask/,keys %v;
304: @inside=sort(@inside);
305: my $sum=0; my $i;
306: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
307: $sum+=$inside[$i];
308: }
309: return $sum;
310: }
311:
312: sub expandnamed {
313: my $expression=shift;
314: if ($expression=~/^\&/) {
315: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
316: my @vars=split(/\W+/,$formula);
317: my %values=();
318: undef %values;
319: map {
320: my $varname=$_;
321: if ($varname=~/\D/) {
322: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
323: $varname=~s/$var/\(\\w\+\)/g;
324: map {
325: if ($_=~/$varname/) {
326: $values{$1}=1;
327: }
328: } keys %c;
329: }
330: } @vars;
331: if ($func eq 'EXPANDSUM') {
332: my $result='';
333: map {
334: my $thissum=$formula;
335: $thissum=~s/$var/$_/g;
336: $result.=$thissum.'+';
337: } keys %values;
338: $result=~s/\+$//;
339: return $result;
340: } else {
341: return 0;
342: }
343: } else {
344: return '$c{\''.$expression.'\'}';
345: }
346: }
347:
348: sub sett {
349: %t=();
350: my $pattern='';
351: if ($sheettype eq 'assesscalc') {
352: $pattern='A';
353: } else {
354: $pattern='[A-Z]';
355: }
356: map {
357: if ($_=~/template\_(\w)/) {
358: my $col=$1;
359: unless ($col=~/^$pattern/) {
360: map {
361: if ($_=~/A(\d+)/) {
362: my $trow=$1;
363: if ($trow) {
364: my $lb=$col.$trow;
365: $t{$lb}=$f{'template_'.$col};
366: $t{$lb}=~s/\#/$trow/g;
367: $t{$lb}=~s/\.\.+/\,/g;
368: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
369: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
370: }
371: }
372: } keys %f;
373: }
374: }
375: } keys %f;
376: map {
377: if (($f{$_}) && ($_!~/template\_/)) {
378: my $matches=($_=~/^$pattern(\d+)/);
379: if (($matches) && ($1)) {
380: unless ($f{$_}=~/^\!/) {
381: $t{$_}=$c{$_};
382: }
383: } else {
384: $t{$_}=$f{$_};
385: $t{$_}=~s/\.\.+/\,/g;
386: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
387: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
388: }
389: }
390: } keys %f;
391: $t{'A0'}=$f{'A0'};
392: $t{'A0'}=~s/\.\.+/\,/g;
393: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
394: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
395: }
396:
397: sub calc {
398: %v=();
399: &sett();
400: my $notfinished=1;
401: my $depth=0;
402: while ($notfinished) {
403: $notfinished=0;
404: map {
405: my $old=$v{$_};
406: $v{$_}=eval($t{$_});
407: if ($@) {
408: %v=();
409: return $@;
410: }
411: if ($v{$_} ne $old) { $notfinished=1; }
412: } keys %t;
413: $depth++;
414: if ($depth>100) {
415: %v=();
416: return 'Maximum calculation depth exceeded';
417: }
418: }
419: return '';
420: }
421:
422: sub templaterow {
423: my @cols=();
424: $cols[0]='<b><font size=+1>Template</font></b>';
425: map {
426: my $fm=$f{'template_'.$_};
427: $fm=~s/[\'\"]/\&\#34;/g;
428: $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm;
429: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
430: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
431: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
432: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
433: return @cols;
434: }
435:
436: sub outrowassess {
437: my $n=shift;
438: my @cols=();
439: if ($n) {
440: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{'A'.$n});
441: $cols[0]=$rl{$usy}.'<br>'.
442: '<select name="sel_'.$n.'" onChange="changesheet('.$n.
443: ')"><option name="default">Default</option>';
444: map {
445: $cols[0].='<option name="'.$_.'"';
446: if ($ufn eq $_) {
447: $cols[0].=' selected';
448: }
449: $cols[0].='>'.$_.'</option>';
450: } @os;
451: $cols[0].='</select>';
452: } else {
453: $cols[0]='<b><font size=+1>Export</font></b>';
454: }
455: map {
456: my $fm=$f{$_.$n};
457: $fm=~s/[\'\"]/\&\#34;/g;
458: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
459: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
460: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
461: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
462: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
463: return @cols;
464: }
465:
466: sub outrow {
467: my $n=shift;
468: my @cols=();
469: if ($n) {
470: $cols[0]=$rl{$f{'A'.$n}};
471: } else {
472: $cols[0]='<b><font size=+1>Export</font></b>';
473: }
474: map {
475: my $fm=$f{$_.$n};
476: $fm=~s/[\'\"]/\&\#34;/g;
477: $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n};
478: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
479: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
480: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
481: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
482: return @cols;
483: }
484:
485: sub exportrowa {
486: my @exportarray=();
487: map {
488: $exportarray[$#exportarray+1]=$v{$_.'0'};
489: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
490: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
491: return @exportarray;
492: }
493:
494: # ------------------------------------------- End of "Inside of the safe space"
495: ENDDEFS
496: $safeeval->reval($code);
497: return $safeeval;
498: }
499:
500: # ------------------------------------------------ Add or change formula values
501:
502: sub setformulas {
503: my ($safeeval,%f)=@_;
504: %{$safeeval->varglob('f')}=%f;
505: }
506:
507: # ------------------------------------------------ Add or change formula values
508:
509: sub setconstants {
510: my ($safeeval,%c)=@_;
511: %{$safeeval->varglob('c')}=%c;
512: }
513:
514: # --------------------------------------------- Set names of other spreadsheets
515:
516: sub setothersheets {
517: my ($safeeval,@os)=@_;
518: @{$safeeval->varglob('os')}=@os;
519: }
520:
521: # ------------------------------------------------ Add or change formula values
522:
523: sub setrowlabels {
524: my ($safeeval,%rl)=@_;
525: %{$safeeval->varglob('rl')}=%rl;
526: }
527:
528: # ------------------------------------------------------- Calculate spreadsheet
529:
530: sub calcsheet {
531: my $safeeval=shift;
532: $safeeval->reval('&calc();');
533: }
534:
535: # ------------------------------------------------------------------ Get values
536:
537: sub getvalues {
538: my $safeeval=shift;
539: return $safeeval->reval('%v');
540: }
541:
542: # ---------------------------------------------------------------- Get formulas
543:
544: sub getformulas {
545: my $safeeval=shift;
546: return %{$safeeval->varglob('f')};
547: }
548:
549: # -------------------------------------------------------------------- Get type
550:
551: sub gettype {
552: my $safeeval=shift;
553: return $safeeval->reval('$sheettype');
554: }
555:
556: # ------------------------------------------------------------------ Set maxrow
557:
558: sub setmaxrow {
559: my ($safeeval,$row)=@_;
560: $safeeval->reval('$maxrow='.$row.';');
561: }
562:
563: # ------------------------------------------------------------------ Get maxrow
564:
565: sub getmaxrow {
566: my $safeeval=shift;
567: return $safeeval->reval('$maxrow');
568: }
569:
570: # ---------------------------------------------------------------- Set filename
571:
572: sub setfilename {
573: my ($safeeval,$fn)=@_;
574: $safeeval->reval('$filename="'.$fn.'";');
575: }
576:
577: # ---------------------------------------------------------------- Get filename
578:
579: sub getfilename {
580: my $safeeval=shift;
581: return $safeeval->reval('$filename');
582: }
583:
584: # --------------------------------------------------------------- Get course ID
585:
586: sub getcid {
587: my $safeeval=shift;
588: return $safeeval->reval('$cid');
589: }
590:
591: # --------------------------------------------------------- Get course filename
592:
593: sub getcfn {
594: my $safeeval=shift;
595: return $safeeval->reval('$cfn');
596: }
597:
598: # ----------------------------------------------------------- Get course number
599:
600: sub getcnum {
601: my $safeeval=shift;
602: return $safeeval->reval('$cnum');
603: }
604:
605: # ------------------------------------------------------------- Get course home
606:
607: sub getchome {
608: my $safeeval=shift;
609: return $safeeval->reval('$chome');
610: }
611:
612: # ----------------------------------------------------------- Get course domain
613:
614: sub getcdom {
615: my $safeeval=shift;
616: return $safeeval->reval('$cdom');
617: }
618:
619: # ---------------------------------------------------------- Get course section
620:
621: sub getcsec {
622: my $safeeval=shift;
623: return $safeeval->reval('$csec');
624: }
625:
626: # --------------------------------------------------------------- Get user name
627:
628: sub getuname {
629: my $safeeval=shift;
630: return $safeeval->reval('$uname');
631: }
632:
633: # ------------------------------------------------------------- Get user domain
634:
635: sub getudom {
636: my $safeeval=shift;
637: return $safeeval->reval('$udom');
638: }
639:
640: # --------------------------------------------------------------- Get user home
641:
642: sub getuhome {
643: my $safeeval=shift;
644: return $safeeval->reval('$uhome');
645: }
646:
647: # -------------------------------------------------------------------- Get symb
648:
649: sub getusymb {
650: my $safeeval=shift;
651: return $safeeval->reval('$usymb');
652: }
653:
654: # ------------------------------------------------------------- Export of A-row
655:
656: sub exportdata {
657: my $safeeval=shift;
658: return $safeeval->reval('&exportrowa()');
659: }
660:
661:
662: # ========================================================== End of Spreadsheet
663: # =============================================================================
664:
665: #
666: # Procedures for screen output
667: #
668: # --------------------------------------------- Produce output row n from sheet
669:
670: sub rown {
671: my ($safeeval,$n)=@_;
672: my $defaultbg;
673: my $rowdata='';
674: my $dataflag=0;
675: unless ($n eq '-') {
676: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
677: } else {
678: $defaultbg='#E0FF';
679: }
680: unless ($ENV{'form.showcsv'}) {
681: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
682: } else {
683: $rowdata.="\n".'"'.$n.'"';
684: }
685: my $showf=0;
686: my $proc;
687: my $maxred;
688: my $sheettype=&gettype($safeeval);
689: if ($sheettype eq 'studentcalc') {
690: $proc='&outrowassess';
691: $maxred=26;
692: } else {
693: $proc='&outrow';
694: }
695: if ($sheettype eq 'assesscalc') {
696: $maxred=1;
697: } else {
698: $maxred=26;
699: }
700: if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
701: map {
702: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
703: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
704: if ((($vl ne '') || ($vl eq '0')) &&
705: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
706: if ($showf==0) { $vl=$_; }
707: unless ($ENV{'form.showcsv'}) {
708: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
709: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
710: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
711: if ($vl eq '') {
712: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
713: }
714: $rowdata.=
715: '<td bgcolor='.$bgcolor.'><a href="javascript:celledit('.$fm.');">'.$vl.
716: '</a></td>';
717: } else {
718: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
719: }
720: } else {
721: $rowdata.=',"'.$vl.'"';
722: }
723: $showf++;
724: } $safeeval->reval($proc.'('.$n.')');
725: if ($ENV{'form.showall'} || ($dataflag)) {
726: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
727: } else {
728: return '';
729: }
730: }
731:
732: # ------------------------------------------------------------- Print out sheet
733:
734: sub outsheet {
735: my ($r,$safeeval)=@_;
736: my $maxred;
737: my $realm;
738: if (&gettype($safeeval) eq 'assesscalc') {
739: $maxred=1;
740: $realm='Assessment';
741: } elsif (&gettype($safeeval) eq 'studentcalc') {
742: $maxred=26;
743: $realm='User';
744: } else {
745: $maxred=26;
746: $realm='Course';
747: }
748: my $maxyellow=52-$maxred;
749: my $tabledata;
750: unless ($ENV{'form.showcsv'}) {
751: $tabledata=
752: '<table border=2><tr><th colspan=2 rowspan=2><font size=+2>'.
753: $realm.'</font></th>'.
754: '<td bgcolor=#FFDDDD colspan='.$maxred.
755: '><b><font size=+1>Import</font></b></td>'.
756: '<td colspan='.$maxyellow.
757: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
758: my $showf=0;
759: map {
760: $showf++;
761: if ($showf<=$maxred) {
762: $tabledata.='<td bgcolor="#FFDDDD">';
763: } else {
764: $tabledata.='<td>';
765: }
766: $tabledata.="<b><font size=+1>$_</font></b></td>";
767: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
768: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
769: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
770: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
771: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
772: } else { $tabledata='<pre>'; }
773:
774: $r->print($tabledata);
775:
776: my $row;
777: my $maxrow=&getmaxrow($safeeval);
778:
779: my @sortby=();
780: my @sortidx=();
781: for ($row=1;$row<=$maxrow;$row++) {
782: $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
783: $sortidx[$row-1]=$row-1;
784: }
785: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
786:
787: my $what='Student';
788: if (&gettype($safeeval) eq 'assesscalc') {
789: $what='Item';
790: } elsif (&gettype($safeeval) eq 'studentcalc') {
791: $what='Assessment';
792: }
793:
794: my $n=0;
795: for ($row=0;$row<$maxrow;$row++) {
796: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
797: if ($thisrow) {
798: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
799: $r->print("</table>\n<br>\n");
800: $r->rflush();
801: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
802: map {
803: $r->print('<td>'.$_.'</td>');
804: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
805: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
806: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
807: 'n','o','p','q','r','s','t','u','v','w','x','y','z');
808: $r->print('</tr>');
809: }
810: $n++;
811: $r->print($thisrow);
812: }
813: }
814: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
815: }
816:
817: #
818: # ----------------------------------------------- Read list of available sheets
819: #
820:
821: sub othersheets {
822: my ($safeeval,$stype)=@_;
823:
824: my $cnum=&getcnum($safeeval);
825: my $cdom=&getcdom($safeeval);
826: my $chome=&getchome($safeeval);
827:
828: my @alternatives=();
829: my $result=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.
830: $stype.'_spreadsheets',$chome);
831: if ($result!~/^error\:/) {
832: map {
833: $alternatives[$#alternatives+1]=
834: &Apache::lonnet::unescape((split(/\=/,$_))[0]);
835: } split(/\&/,$result);
836: }
837: return @alternatives;
838: }
839:
840: #
841: # -------------------------------------- Read spreadsheet formulas for a course
842: #
843:
844: sub readsheet {
845: my ($safeeval,$fn)=@_;
846: my $stype=&gettype($safeeval);
847: my $cnum=&getcnum($safeeval);
848: my $cdom=&getcdom($safeeval);
849: my $chome=&getchome($safeeval);
850:
851: # --------- There is no filename. Look for defaults in course and global, cache
852:
853: unless($fn) {
854: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
855: $fn=&Apache::lonnet::reply('get:'.$cdom.':'.$cnum.
856: ':environment:spreadsheet_default_'.$stype,
857: $chome);
858: unless (($fn) && ($fn!~/^error\:/)) {
859: $fn='default_'.$stype;
860: }
861: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
862: }
863: }
864:
865: # ---------------------------------------------------------- fn now has a value
866:
867: &setfilename($safeeval,$fn);
868:
869: # ------------------------------------------------------ see if sheet is cached
870: my $fstring='';
871: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
872: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
873: } else {
874:
875: # ---------------------------------------------------- Not cached, need to read
876:
877: my %f=();
878:
879: if ($fn=~/^default\_/) {
880: my $sheetxml='';
881: {
882: my $fh;
883: my $dfn=$fn;
884: $dfn=~s/\_/\./g;
885: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
886: $sheetxml=join('',<$fh>);
887: } else {
888: $sheetxml='<field row="0" col="A">"Error"</field>';
889: }
890: }
891: my $parser=HTML::TokeParser->new(\$sheetxml);
892: my $token;
893: while ($token=$parser->get_token) {
894: if ($token->[0] eq 'S') {
895: if ($token->[1] eq 'field') {
896: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
897: $parser->get_text('/field');
898: }
899: if ($token->[1] eq 'template') {
900: $f{'template_'.$token->[2]->{'col'}}=
901: $parser->get_text('/template');
902: }
903: }
904: }
905: } else {
906: my $sheet='';
907: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':'.$fn,
908: $chome);
909: unless ($reply=~/^error\:/) {
910: $sheet=$reply;
911: }
912: map {
913: my ($name,$value)=split(/\=/,$_);
914: $f{&Apache::lonnet::unescape($name)}=
915: &Apache::lonnet::unescape($value);
916: } split(/\&/,$sheet);
917: }
918: # --------------------------------------------------------------- Cache and set
919: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
920: &setformulas($safeeval,%f);
921: }
922: }
923:
924: # -------------------------------------------------------- Make new spreadsheet
925:
926: sub makenewsheet {
927: my ($uname,$udom,$stype,$usymb)=@_;
928: my $safeeval=initsheet($stype);
929: $safeeval->reval(
930: '$uname="'.$uname.
931: '";$udom="'.$udom.
932: '";$uhome="'.&Apache::lonnet::homeserver($uname,$udom).
933: '";$sheettype="'.$stype.
934: '";$usymb="'.$usymb.
935: '";$csec="'.&Apache::lonnet::usection($udom,$uname,
936: $ENV{'request.course.id'}).
937: '";$cid="'.$ENV{'request.course.id'}.
938: '";$cfn="'.$ENV{'request.course.fn'}.
939: '";$cnum="'.$ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
940: '";$cdom="'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
941: '";$chome="'.$ENV{'course.'.$ENV{'request.course.id'}.'.home'}.'";');
942: return $safeeval;
943: }
944:
945: # ------------------------------------------------------------ Save spreadsheet
946:
947: sub writesheet {
948: my ($safeeval,$makedef)=@_;
949: my $cid=&getcid($safeeval);
950: if (&Apache::lonnet::allowed('opa',$cid)) {
951: my %f=&getformulas($safeeval);
952: my $stype=&gettype($safeeval);
953: my $cnum=&getcnum($safeeval);
954: my $cdom=&getcdom($safeeval);
955: my $chome=&getchome($safeeval);
956: my $fn=&getfilename($safeeval);
957:
958: # ------------------------------------------------------------- Cache new sheet
959: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
960: # ----------------------------------------------------------------- Write sheet
961: my $sheetdata='';
962: map {
963: unless ($f{$_} eq 'import') {
964: $sheetdata.=&Apache::lonnet::escape($_).'='.
965: &Apache::lonnet::escape($f{$_}).'&';
966: }
967: } keys %f;
968: $sheetdata=~s/\&$//;
969: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
970: $sheetdata,$chome);
971: if ($reply eq 'ok') {
972: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
973: $stype.'_spreadsheets:'.
974: &Apache::lonnet::escape($fn).'='.$ENV{'user.name'}.'@'.
975: $ENV{'user.domain'},
976: $chome);
977: if ($reply eq 'ok') {
978: if ($makedef) {
979: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
980: ':environment:spreadsheet_default_'.$stype.'='.
981: &Apache::lonnet::escape($fn),
982: $chome);
983: } else {
984: return $reply;
985: }
986: } else {
987: return $reply;
988: }
989: } else {
990: return $reply;
991: }
992: }
993: return 'unauthorized';
994: }
995:
996: # ----------------------------------------------- Make a temp copy of the sheet
997: # "Modified workcopy" - interactive only
998: #
999:
1000: sub tmpwrite {
1001: my $safeeval=shift;
1002: my $fn=$ENV{'user.name'}.'_'.
1003: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1004: &getfilename($safeeval);
1005: $fn=~s/\W/\_/g;
1006: $fn=$tmpdir.$fn.'.tmp';
1007: my $fh;
1008: if ($fh=Apache::File->new('>'.$fn)) {
1009: print $fh join("\n",&getformulas($safeeval));
1010: }
1011: }
1012:
1013: # ---------------------------------------------------------- Read the temp copy
1014:
1015: sub tmpread {
1016: my ($safeeval,$nfield,$nform)=@_;
1017: my $fn=$ENV{'user.name'}.'_'.
1018: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1019: &getfilename($safeeval);
1020: $fn=~s/\W/\_/g;
1021: $fn=$tmpdir.$fn.'.tmp';
1022: my $fh;
1023: my %fo=();
1024: if ($fh=Apache::File->new($fn)) {
1025: my $name;
1026: while ($name=<$fh>) {
1027: chomp($name);
1028: my $value=<$fh>;
1029: chomp($value);
1030: $fo{$name}=$value;
1031: }
1032: }
1033: if ($nform eq 'changesheet') {
1034: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1035: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1036: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1037: }
1038: } else {
1039: if ($nfield) { $fo{$nfield}=$nform; }
1040: }
1041: &setformulas($safeeval,%fo);
1042: }
1043:
1044: # ================================================================== Parameters
1045: # -------------------------------------------- Figure out a cascading parameter
1046: #
1047: # For this function to work
1048: #
1049: # * parmhash needs to be tied
1050: # * courseopt and useropt need to be initialized for this user and course
1051: #
1052:
1053: sub parmval {
1054: my ($what,$safeeval)=@_;
1055: my $cid=&getcid($safeeval);
1056: my $csec=&getcsec($safeeval);
1057: my $uname=&getuname($safeeval);
1058: my $udom=&getudom($safeeval);
1059: my $symb=&getusymb($safeeval);
1060:
1061: unless ($symb) { return ''; }
1062: my $result='';
1063:
1064: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1065: # ----------------------------------------------------- Cascading lookup scheme
1066: my $rwhat=$what;
1067: $what=~s/^parameter\_//;
1068: $what=~s/\_([^\_]+)$/\.$1/;
1069:
1070: my $symbparm=$symb.'.'.$what;
1071: my $mapparm=$mapname.'___(all).'.$what;
1072: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
1073:
1074: my $seclevel=
1075: $usercourseprefix.'.['.
1076: $csec.'].'.$what;
1077: my $seclevelr=
1078: $usercourseprefix.'.['.
1079: $csec.'].'.$symbparm;
1080: my $seclevelm=
1081: $usercourseprefix.'.['.
1082: $csec.'].'.$mapparm;
1083:
1084: my $courselevel=
1085: $usercourseprefix.'.'.$what;
1086: my $courselevelr=
1087: $usercourseprefix.'.'.$symbparm;
1088: my $courselevelm=
1089: $usercourseprefix.'.'.$mapparm;
1090:
1091: # ---------------------------------------------------------- fourth, check user
1092:
1093: if ($uname) {
1094:
1095: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
1096:
1097: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
1098:
1099: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
1100:
1101: }
1102:
1103: # --------------------------------------------------------- third, check course
1104:
1105: if ($csec) {
1106:
1107: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1108:
1109: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1110:
1111: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1112:
1113: }
1114:
1115: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
1116:
1117: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
1118:
1119: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1120:
1121: # ----------------------------------------------------- second, check map parms
1122:
1123: my $thisparm=$parmhash{$symbparm};
1124: if ($thisparm) { return $thisparm; }
1125:
1126: # -------------------------------------------------------- first, check default
1127:
1128: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1129:
1130: }
1131:
1132: # ---------------------------------------------- Update rows for course listing
1133:
1134: sub updateclasssheet {
1135: my $safeeval=shift;
1136: my $cnum=&getcnum($safeeval);
1137: my $cdom=&getcdom($safeeval);
1138: my $cid=&getcid($safeeval);
1139: my $chome=&getchome($safeeval);
1140:
1141: # ---------------------------------------------- Read class list and row labels
1142:
1143: my $classlst=&Apache::lonnet::reply
1144: ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
1145: my %currentlist=();
1146: my $now=time;
1147: unless ($classlst=~/^error\:/) {
1148: map {
1149: my ($name,$value)=split(/\=/,$_);
1150: my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
1151: my $active=1;
1152: if (($end) && ($now>$end)) { $active=0; }
1153: if ($active) {
1154: my $rowlabel='';
1155: $name=&Apache::lonnet::unescape($name);
1156: my ($sname,$sdom)=split(/\:/,$name);
1157: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1158: if ($ssec==-1) {
1159: unless ($ENV{'form.showcsv'}) {
1160: $rowlabel='<font color=red>Data not available: '.$name.
1161: '</font>';
1162: } else {
1163: $rowlabel='ERROR","'.$name.
1164: '","Data not available","","","';
1165: }
1166: } else {
1167: my %reply=&Apache::lonnet::idrget($sdom,$sname);
1168: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
1169: ':environment:firstname&middlename&lastname&generation',
1170: &Apache::lonnet::homeserver($sname,$sdom));
1171: unless ($ENV{'form.showcsv'}) {
1172: $rowlabel='<a href="/adm/studentcalc?uname='.$sname.
1173: '&udom='.$sdom.'">'.
1174: $ssec.' '.$reply{$sname}.'<br>';
1175: map {
1176: $rowlabel.=&Apache::lonnet::unescape($_).' ';
1177: } split(/\&/,$reply);
1178: $rowlabel.='</a>';
1179: } else {
1180: $rowlabel=$ssec.'","'.$reply{$sname}.'"';
1181: my $ncount=0;
1182: map {
1183: $rowlabel.=',"'.&Apache::lonnet::unescape($_).'"';
1184: $ncount++;
1185: } split(/\&/,$reply);
1186: unless ($ncount==4) { $rowlabel.=',""'; }
1187: $rowlabel=~s/\"$//;
1188: }
1189: }
1190: $currentlist{&Apache::lonnet::unescape($name)}=$rowlabel;
1191: }
1192: } split(/\&/,$classlst);
1193: #
1194: # -------------------- Find discrepancies between the course row table and this
1195: #
1196: my %f=&getformulas($safeeval);
1197: my $changed=0;
1198:
1199: my $maxrow=0;
1200: my %existing=();
1201:
1202: # ----------------------------------------------------------- Now obsolete rows
1203: map {
1204: if ($_=~/^A(\d+)/) {
1205: $maxrow=($1>$maxrow)?$1:$maxrow;
1206: $existing{$f{$_}}=1;
1207: unless ((defined($currentlist{$f{$_}})) || (!$1)) {
1208: $f{$_}='!!! Obsolete';
1209: $changed=1;
1210: }
1211: }
1212: } keys %f;
1213:
1214: # -------------------------------------------------------- New and unknown keys
1215:
1216: map {
1217: unless ($existing{$_}) {
1218: $changed=1;
1219: $maxrow++;
1220: $f{'A'.$maxrow}=$_;
1221: }
1222: } sort keys %currentlist;
1223:
1224: if ($changed) { &setformulas($safeeval,%f); }
1225:
1226: &setmaxrow($safeeval,$maxrow);
1227: &setrowlabels($safeeval,%currentlist);
1228:
1229: } else {
1230: return 'Could not access course data';
1231: }
1232: }
1233:
1234: # ----------------------------------- Update rows for student and assess sheets
1235:
1236: sub updatestudentassesssheet {
1237: my $safeeval=shift;
1238: my %bighash;
1239: my $stype=&gettype($safeeval);
1240: my %current=();
1241: unless ($updatedata{$ENV{'request.course.fn'}.'_'.$stype}) {
1242: # -------------------------------------------------------------------- Tie hash
1243: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1244: &GDBM_READER,0640)) {
1245: # --------------------------------------------------------- Get all assessments
1246:
1247: my %allkeys=('timestamp' =>
1248: 'Timestamp of Last Transaction<br>timestamp');
1249:
1250: my $adduserstr='';
1251: if ((&getuname($safeeval) ne $ENV{'user.name'}) ||
1252: (&getudom($safeeval) ne $ENV{'user.domain'})) {
1253: $adduserstr='&uname='.&getuname($safeeval).
1254: '&udom='.&getudom($safeeval);
1255: }
1256:
1257: my %allassess=('_feedback' =>
1258: '<a href="/adm/assesscalc?usymb=_feedback'.$adduserstr.
1259: '">Feedback</a>',
1260: '_evaluation' =>
1261: '<a href="/adm/assesscalc?usymb=_evaluation'.$adduserstr.
1262: '">Evaluation</a>',
1263: '_tutoring' =>
1264: '<a href="/adm/assesscalc?usymb=_tutoring'.$adduserstr.
1265: '">Tutoring</a>',
1266: '_discussion' =>
1267: '<a href="/adm/assesscalc?usymb=_discussion'.$adduserstr.
1268: '">Discussion</a>'
1269: );
1270:
1271: map {
1272: if ($_=~/^src\_(\d+)\.(\d+)$/) {
1273: my $mapid=$1;
1274: my $resid=$2;
1275: my $id=$mapid.'.'.$resid;
1276: my $srcf=$bighash{$_};
1277: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1278: my $symb=
1279: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1280: '___'.$resid.'___'.
1281: &Apache::lonnet::declutter($srcf);
1282: $allassess{$symb}=
1283: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1284: $bighash{'title_'.$id}.'</a>';
1285: if ($stype eq 'assesscalc') {
1286: map {
1287: if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) {
1288: my $key=$_;
1289: my $display=
1290: &Apache::lonnet::metadata($srcf,$key.'.display');
1291: unless ($display) {
1292: $display.=
1293: &Apache::lonnet::metadata($srcf,$key.'.name');
1294: }
1295: $display.='<br>'.$key;
1296: $allkeys{$key}=$display;
1297: }
1298: } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
1299: }
1300: }
1301: }
1302: } keys %bighash;
1303: untie(%bighash);
1304:
1305: #
1306: # %allkeys has a list of storage and parameter displays by unikey
1307: # %allassess has a list of all resource displays by symb
1308: #
1309:
1310: if ($stype eq 'assesscalc') {
1311: %current=%allkeys;
1312: } elsif ($stype eq 'studentcalc') {
1313: %current=%allassess;
1314: }
1315: $updatedata{$ENV{'request.course.fn'}.'_'.$stype}=
1316: join('___;___',%current);
1317: } else {
1318: return 'Could not access course data';
1319: }
1320: # ------------------------------------------------------ Get current from cache
1321: } else {
1322: %current=split(/\_\_\_\;\_\_\_/,
1323: $updatedata{$ENV{'request.course.fn'}.'_'.$stype});
1324: }
1325: # -------------------- Find discrepancies between the course row table and this
1326: #
1327: my %f=&getformulas($safeeval);
1328: my $changed=0;
1329:
1330: my $maxrow=0;
1331: my %existing=();
1332:
1333: # ----------------------------------------------------------- Now obsolete rows
1334: map {
1335: if ($_=~/^A(\d+)/) {
1336: $maxrow=($1>$maxrow)?$1:$maxrow;
1337: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1338: $existing{$usy}=1;
1339: unless ((defined($current{$usy})) || (!$1)) {
1340: $f{$_}='!!! Obsolete';
1341: $changed=1;
1342: } elsif ($ufn) {
1343: $current{$usy}
1344: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1345: }
1346: }
1347: } keys %f;
1348:
1349: # -------------------------------------------------------- New and unknown keys
1350:
1351: map {
1352: unless ($existing{$_}) {
1353: $changed=1;
1354: $maxrow++;
1355: $f{'A'.$maxrow}=$_;
1356: }
1357: } keys %current;
1358:
1359: if ($changed) { &setformulas($safeeval,%f); }
1360:
1361: &setmaxrow($safeeval,$maxrow);
1362: &setrowlabels($safeeval,%current);
1363:
1364: undef %current;
1365: undef %existing;
1366: }
1367:
1368: # ------------------------------------------------ Load data for one assessment
1369:
1370: sub loadstudent {
1371: my $safeeval=shift;
1372: my %c=();
1373: my %f=&getformulas($safeeval);
1374: $cachedassess=&getuname($safeeval).':'.&getudom($safeeval);
1375: %cachedstores=();
1376: {
1377: my $reply=&Apache::lonnet::reply('dump:'.&getudom($safeeval).':'.
1378: &getuname($safeeval).':'.
1379: &getcid($safeeval),
1380: &getuhome($safeeval));
1381: unless ($reply=~/^error\:/) {
1382: map {
1383: my ($name,$value)=split(/\=/,$_);
1384: $cachedstores{&Apache::lonnet::unescape($name)}=
1385: &Apache::lonnet::unescape($value);
1386: } split(/\&/,$reply);
1387: }
1388: }
1389: my @assessdata=();
1390: map {
1391: if ($_=~/^A(\d+)/) {
1392: my $row=$1;
1393: unless (($f{$_}=~/^\!/) || ($row==0)) {
1394: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1395: @assessdata=&exportsheet(&getuname($safeeval),
1396: &getudom($safeeval),
1397: 'assesscalc',$usy,$ufn);
1398: my $index=0;
1399: map {
1400: if ($assessdata[$index]) {
1401: my $col=$_;
1402: if ($assessdata[$index]=~/\D/) {
1403: $c{$col.$row}="'".$assessdata[$index]."'";
1404: } else {
1405: $c{$col.$row}=$assessdata[$index];
1406: }
1407: unless ($col eq 'A') {
1408: $f{$col.$row}='import';
1409: }
1410: }
1411: $index++;
1412: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1413: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
1414: }
1415: }
1416: } keys %f;
1417: $cachedassess='';
1418: undef %cachedstores;
1419: &setformulas($safeeval,%f);
1420: &setconstants($safeeval,%c);
1421: }
1422:
1423: # --------------------------------------------------- Load data for one student
1424:
1425: sub loadcourse {
1426: my ($safeeval,$r)=@_;
1427: my %c=();
1428: my %f=&getformulas($safeeval);
1429: my $total=0;
1430: map {
1431: if ($_=~/^A(\d+)/) {
1432: unless ($f{$_}=~/^\!/) { $total++; }
1433: }
1434: } keys %f;
1435: my $now=0;
1436: my $since=time;
1437: $r->print(<<ENDPOP);
1438: <script>
1439: popwin=open('','popwin','width=400,height=100');
1440: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1441: '<h3>Spreadsheet Calculation Progress</h3>'+
1442: '<form name=popremain>'+
1443: '<input type=text size=35 name=remaining value=Starting></form>'+
1444: '</body></html>');
1445: popwin.document.close();
1446: </script>
1447: ENDPOP
1448: $r->rflush();
1449: map {
1450: if ($_=~/^A(\d+)/) {
1451: my $row=$1;
1452: unless (($f{$_}=~/^\!/) || ($row==0)) {
1453: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1454: 'studentcalc');
1455: undef %userrdatas;
1456: $now++;
1457: $r->print('<script>popwin.document.popremain.remaining.value="'.
1458: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1459: ' secs remaining";</script>');
1460: $r->rflush();
1461:
1462: my $index=0;
1463: map {
1464: if ($studentdata[$index]) {
1465: my $col=$_;
1466: if ($studentdata[$index]=~/\D/) {
1467: $c{$col.$row}="'".$studentdata[$index]."'";
1468: } else {
1469: $c{$col.$row}=$studentdata[$index];
1470: }
1471: unless ($col eq 'A') {
1472: $f{$col.$row}='import';
1473: }
1474: }
1475: $index++;
1476: } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1477: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
1478: }
1479: }
1480: } keys %f;
1481: &setformulas($safeeval,%f);
1482: &setconstants($safeeval,%c);
1483: $r->print('<script>popwin.close()</script>');
1484: $r->rflush();
1485: }
1486:
1487: # ------------------------------------------------ Load data for one assessment
1488:
1489: sub loadassessment {
1490: my $safeeval=shift;
1491:
1492: my $uhome=&getuhome($safeeval);
1493: my $uname=&getuname($safeeval);
1494: my $udom=&getudom($safeeval);
1495: my $symb=&getusymb($safeeval);
1496: my $cid=&getcid($safeeval);
1497: my $cnum=&getcnum($safeeval);
1498: my $cdom=&getcdom($safeeval);
1499: my $chome=&getchome($safeeval);
1500:
1501: my $namespace;
1502: unless ($namespace=$cid) { return ''; }
1503:
1504: # ----------------------------------------------------------- Get stored values
1505:
1506: my %returnhash=();
1507:
1508: if ($cachedassess eq $uname.':'.$udom) {
1509: #
1510: # get data out of the dumped stores
1511: #
1512:
1513: my $version=$cachedstores{'version:'.$symb};
1514: my $scope;
1515: for ($scope=1;$scope<=$version;$scope++) {
1516: map {
1517: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
1518: } split(/\:/,$cachedstores{$scope.':keys:'.$symb});
1519: }
1520:
1521: } else {
1522: #
1523: # restore individual
1524: #
1525:
1526: my $answer=&Apache::lonnet::reply(
1527: "restore:$udom:$uname:".
1528: &Apache::lonnet::escape($namespace).":".
1529: &Apache::lonnet::escape($symb),$uhome);
1530: map {
1531: my ($name,$value)=split(/\=/,$_);
1532: $returnhash{&Apache::lonnet::unescape($name)}=
1533: &Apache::lonnet::unescape($value);
1534: } split(/\&/,$answer);
1535: my $version;
1536: for ($version=1;$version<=$returnhash{'version'};$version++) {
1537: map {
1538: $returnhash{$_}=$returnhash{$version.':'.$_};
1539: } split(/\:/,$returnhash{$version.':keys'});
1540: }
1541: }
1542: # ----------------------------- returnhash now has all stores for this resource
1543:
1544: # ---------------------------- initialize coursedata and userdata for this user
1545: undef %courseopt;
1546: undef %useropt;
1547:
1548: my $userprefix=$uname.'_'.$udom.'_';
1549:
1550: unless ($uhome eq 'no_host') {
1551: # -------------------------------------------------------------- Get coursedata
1552: unless
1553: ((time-$courserdatas{$cid.'.last_cache'})<240) {
1554: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
1555: ':resourcedata',$chome);
1556: if ($reply!~/^error\:/) {
1557: $courserdatas{$cid}=$reply;
1558: $courserdatas{$cid.'.last_cache'}=time;
1559: }
1560: }
1561: map {
1562: my ($name,$value)=split(/\=/,$_);
1563: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
1564: &Apache::lonnet::unescape($value);
1565: } split(/\&/,$courserdatas{$cid});
1566: # --------------------------------------------------- Get userdata (if present)
1567: unless
1568: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
1569: my $reply=
1570: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
1571: if ($reply!~/^error\:/) {
1572: $userrdatas{$uname.'___'.$udom}=$reply;
1573: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
1574: }
1575: }
1576: map {
1577: my ($name,$value)=split(/\=/,$_);
1578: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
1579: &Apache::lonnet::unescape($value);
1580: } split(/\&/,$userrdatas{$uname.'___'.$udom});
1581: }
1582: # ----------------- now courseopt, useropt initialized for this user and course
1583: # (used by parmval)
1584:
1585: #
1586: # Load keys for this assessment only
1587: #
1588: my %thisassess=();
1589: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
1590:
1591: map {
1592: $thisassess{$_}=1;
1593: } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
1594: #
1595: # Load parameters
1596: #
1597: my %c=();
1598:
1599: if (tie(%parmhash,'GDBM_File',
1600: &getcfn($safeeval).'_parms.db',&GDBM_READER,0640)) {
1601: my %f=&getformulas($safeeval);
1602: map {
1603: if ($_=~/^A/) {
1604: unless ($f{$_}=~/^\!/) {
1605: if ($f{$_}=~/^parameter/) {
1606: if ($thisassess{$f{$_}}) {
1607: my $val=&parmval($f{$_},$safeeval);
1608: $c{$_}=$val;
1609: $c{$f{$_}}=$val;
1610: }
1611: } else {
1612: my $key=$f{$_};
1613: my $ckey=$key;
1614: $key=~s/^stores\_/resource\./;
1615: $key=~s/\_/\./g;
1616: $c{$_}=$returnhash{$key};
1617: $c{$ckey}=$returnhash{$key};
1618: }
1619: }
1620: }
1621: } keys %f;
1622: untie(%parmhash);
1623: }
1624: &setconstants($safeeval,%c);
1625: }
1626:
1627: # --------------------------------------------------------- Various form fields
1628:
1629: sub textfield {
1630: my ($title,$name,$value)=@_;
1631: return "\n<p><b>$title:</b><br>".
1632: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
1633: }
1634:
1635: sub hiddenfield {
1636: my ($name,$value)=@_;
1637: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
1638: }
1639:
1640: sub selectbox {
1641: my ($title,$name,$value,%options)=@_;
1642: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
1643: map {
1644: $selout.='<option value="'.$_.'"';
1645: if ($_ eq $value) { $selout.=' selected'; }
1646: $selout.='>'.$options{$_}.'</option>';
1647: } sort keys %options;
1648: return $selout.'</select>';
1649: }
1650:
1651: # =============================================== Update information in a sheet
1652: #
1653: # Add new users or assessments, etc.
1654: #
1655:
1656: sub updatesheet {
1657: my $safeeval=shift;
1658: my $stype=&gettype($safeeval);
1659: if ($stype eq 'classcalc') {
1660: return &updateclasssheet($safeeval);
1661: } else {
1662: return &updatestudentassesssheet($safeeval);
1663: }
1664: }
1665:
1666: # =================================================== Load the rows for a sheet
1667: #
1668: # Import the data for rows
1669: #
1670:
1671: sub loadrows {
1672: my ($safeeval,$r)=@_;
1673: my $stype=&gettype($safeeval);
1674: if ($stype eq 'classcalc') {
1675: &loadcourse($safeeval,$r);
1676: } elsif ($stype eq 'studentcalc') {
1677: &loadstudent($safeeval);
1678: } else {
1679: &loadassessment($safeeval);
1680: }
1681: }
1682:
1683: # ======================================================= Forced recalculation?
1684:
1685: sub checkthis {
1686: my ($keyname,$time)=@_;
1687: return ($time<$expiredates{$keyname});
1688: }
1689: sub forcedrecalc {
1690: my ($uname,$udom,$stype,$usymb)=@_;
1691: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1692: my $time=$oldsheets{$key.'.time'};
1693: if ($ENV{'form.forcerecalc'}) { return 1; }
1694: unless ($time) { return 1; }
1695: if ($stype eq 'assesscalc') {
1696: my $map=(split(/\_\_\_/,$usymb))[0];
1697: if (&checkthis('::assesscalc:',$time) ||
1698: &checkthis('::assesscalc:'.$map,$time) ||
1699: &checkthis('::assesscalc:'.$usymb,$time) ||
1700: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
1701: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
1702: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
1703: return 1;
1704: }
1705: } else {
1706: if (&checkthis('::studentcalc:',$time) ||
1707: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
1708: return 1;
1709: }
1710: }
1711: return 0;
1712: }
1713:
1714: # ============================================================== Export handler
1715: #
1716: # Non-interactive call from with program
1717: #
1718:
1719: sub exportsheet {
1720: my ($uname,$udom,$stype,$usymb,$fn)=@_;
1721: my @exportarr=();
1722:
1723: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
1724: $fn='default_'.$1;
1725: }
1726:
1727: #
1728: # Check if cached
1729: #
1730:
1731: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1732: my $found='';
1733:
1734: if ($oldsheets{$key}) {
1735: map {
1736: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1737: if ($name eq $fn) {
1738: $found=$value;
1739: }
1740: } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
1741: }
1742:
1743: unless ($found) {
1744: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
1745: if ($oldsheets{$key}) {
1746: map {
1747: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1748: if ($name eq $fn) {
1749: $found=$value;
1750: }
1751: } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
1752: }
1753: }
1754: #
1755: # Check if still valid
1756: #
1757: if ($found) {
1758: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
1759: $found='';
1760: }
1761: }
1762:
1763: if ($found) {
1764: #
1765: # Return what was cached
1766: #
1767: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
1768:
1769: } else {
1770: #
1771: # Not cached
1772: #
1773:
1774: my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
1775: &readsheet($thissheet,$fn);
1776: &updatesheet($thissheet);
1777: &loadrows($thissheet);
1778: &calcsheet($thissheet);
1779: @exportarr=&exportdata($thissheet);
1780: #
1781: # Store now
1782: #
1783: my $cid=$ENV{'request.course.id'};
1784: my $current='';
1785: if ($stype eq 'studentcalc') {
1786: $current=&Apache::lonnet::reply('get:'.
1787: $ENV{'course.'.$cid.'.domain'}.':'.
1788: $ENV{'course.'.$cid.'.num'}.
1789: ':nohist_calculatedsheets:'.
1790: &Apache::lonnet::escape($key),
1791: $ENV{'course.'.$cid.'.home'});
1792: } else {
1793: $current=&Apache::lonnet::reply('get:'.
1794: &getudom($thissheet).':'.
1795: &getuname($thissheet).
1796: ':nohist_calculatedsheets_'.
1797: $ENV{'request.course.id'}.':'.
1798: &Apache::lonnet::escape($key),
1799: &getuhome($thissheet));
1800:
1801: }
1802: my %currentlystored=();
1803: unless ($current=~/^error\:/) {
1804: map {
1805: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
1806: $currentlystored{$name}=$value;
1807: } split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current));
1808: }
1809: $currentlystored{$fn}=join('___;___',@exportarr);
1810:
1811: my $newstore='';
1812: map {
1813: if ($newstore) { $newstore.='___&___'; }
1814: $newstore.=$_.'___=___'.$currentlystored{$_};
1815: } keys %currentlystored;
1816: my $now=time;
1817: if ($stype eq 'studentcalc') {
1818: &Apache::lonnet::reply('put:'.
1819: $ENV{'course.'.$cid.'.domain'}.':'.
1820: $ENV{'course.'.$cid.'.num'}.
1821: ':nohist_calculatedsheets:'.
1822: &Apache::lonnet::escape($key).'='.
1823: &Apache::lonnet::escape($newstore).'&'.
1824: &Apache::lonnet::escape($key).'.time='.$now,
1825: $ENV{'course.'.$cid.'.home'});
1826: } else {
1827: &Apache::lonnet::reply('put:'.
1828: &getudom($thissheet).':'.
1829: &getuname($thissheet).
1830: ':nohist_calculatedsheets_'.
1831: $ENV{'request.course.id'}.':'.
1832: &Apache::lonnet::escape($key).'='.
1833: &Apache::lonnet::escape($newstore).'&'.
1834: &Apache::lonnet::escape($key).'.time='.$now,
1835: &getuhome($thissheet));
1836: }
1837: }
1838: return @exportarr;
1839: }
1840: # ============================================================ Expiration Dates
1841: #
1842: # Load previously cached student spreadsheets for this course
1843: #
1844:
1845: sub expirationdates {
1846: undef %expiredates;
1847: my $cid=$ENV{'request.course.id'};
1848: my $reply=&Apache::lonnet::reply('dump:'.
1849: $ENV{'course.'.$cid.'.domain'}.':'.
1850: $ENV{'course.'.$cid.'.num'}.
1851: ':nohist_expirationdates',
1852: $ENV{'course.'.$cid.'.home'});
1853: unless ($reply=~/^error\:/) {
1854: map {
1855: my ($name,$value)=split(/\=/,$_);
1856: $expiredates{&Apache::lonnet::unescape($name)}
1857: =&Apache::lonnet::unescape($value);
1858: } split(/\&/,$reply);
1859: }
1860: }
1861:
1862: # ===================================================== Calculated sheets cache
1863: #
1864: # Load previously cached student spreadsheets for this course
1865: #
1866:
1867: sub cachedcsheets {
1868: my $cid=$ENV{'request.course.id'};
1869: my $reply=&Apache::lonnet::reply('dump:'.
1870: $ENV{'course.'.$cid.'.domain'}.':'.
1871: $ENV{'course.'.$cid.'.num'}.
1872: ':nohist_calculatedsheets',
1873: $ENV{'course.'.$cid.'.home'});
1874: unless ($reply=~/^error\:/) {
1875: map {
1876: my ($name,$value)=split(/\=/,$_);
1877: $oldsheets{&Apache::lonnet::unescape($name)}
1878: =&Apache::lonnet::unescape($value);
1879: } split(/\&/,$reply);
1880: }
1881: }
1882:
1883: # ===================================================== Calculated sheets cache
1884: #
1885: # Load previously cached assessment spreadsheets for this student
1886: #
1887:
1888: sub cachedssheets {
1889: my ($sname,$sdom,$shome)=@_;
1890: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
1891: my $cid=$ENV{'request.course.id'};
1892: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
1893: ':nohist_calculatedsheets_'.
1894: $ENV{'request.course.id'},
1895: $shome);
1896: unless ($reply=~/^error\:/) {
1897: map {
1898: my ($name,$value)=split(/\=/,$_);
1899: $oldsheets{&Apache::lonnet::unescape($name)}
1900: =&Apache::lonnet::unescape($value);
1901: } split(/\&/,$reply);
1902: }
1903: $loadedcaches{$sname.'_'.$sdom}=1;
1904: }
1905: }
1906:
1907: # ===================================================== Calculated sheets cache
1908: #
1909: # Load previously cached assessment spreadsheets for this student
1910: #
1911:
1912: # ================================================================ Main handler
1913: #
1914: # Interactive call to screen
1915: #
1916: #
1917:
1918:
1919: sub handler {
1920: my $r=shift;
1921:
1922: if ($r->header_only) {
1923: $r->content_type('text/html');
1924: $r->send_http_header;
1925: return OK;
1926: }
1927:
1928: # ---------------------------------------------------- Global directory configs
1929:
1930: $includedir=$r->dir_config('lonIncludes');
1931: $tmpdir=$r->dir_config('lonDaemons').'/tmp/';
1932:
1933: # ----------------------------------------------------- Needs to be in a course
1934:
1935: if ($ENV{'request.course.fn'}) {
1936:
1937: # --------------------------- Get query string for limited number of parameters
1938:
1939: map {
1940: my ($name, $value) = split(/=/,$_);
1941: $value =~ tr/+/ /;
1942: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1943: if (($name eq 'uname') || ($name eq 'udom') ||
1944: ($name eq 'usymb') || ($name eq 'ufn')) {
1945: unless ($ENV{'form.'.$name}) {
1946: $ENV{'form.'.$name}=$value;
1947: }
1948: }
1949: } (split(/&/,$ENV{'QUERY_STRING'}));
1950:
1951: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
1952: $ENV{'form.ufn'}='default_'.$1;
1953: }
1954:
1955: # -------------------------------------- Interactive loading of specific sheet?
1956: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
1957: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
1958: }
1959: # ------------------------------------------- Nothing there? Must be login user
1960:
1961: my $aname;
1962: my $adom;
1963:
1964: unless ($ENV{'form.uname'}) {
1965: $aname=$ENV{'user.name'};
1966: $adom=$ENV{'user.domain'};
1967: } else {
1968: $aname=$ENV{'form.uname'};
1969: $adom=$ENV{'form.udom'};
1970: }
1971:
1972: # ------------------------------------------------------------------- Open page
1973:
1974: $r->content_type('text/html');
1975: $r->header_out('Cache-control','no-cache');
1976: $r->header_out('Pragma','no-cache');
1977: $r->send_http_header;
1978:
1979: # --------------------------------------------------------------- Screen output
1980:
1981: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
1982: $r->print(<<ENDSCRIPT);
1983: <script language="JavaScript">
1984:
1985: function celledit(cn,cf) {
1986: var cnf=prompt(cn,cf);
1987: if (cnf!=null) {
1988: document.sheet.unewfield.value=cn;
1989: document.sheet.unewformula.value=cnf;
1990: document.sheet.submit();
1991: }
1992: }
1993:
1994: function changesheet(cn) {
1995: document.sheet.unewfield.value=cn;
1996: document.sheet.unewformula.value='changesheet';
1997: document.sheet.submit();
1998: }
1999:
2000: </script>
2001: ENDSCRIPT
2002: $r->print('</head><body bgcolor="#FFFFFF">'.
2003: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
2004: '<h1>LON-CAPA Spreadsheet</h1>'.
2005: '<form action="'.$r->uri.'" name=sheet method=post>'.
2006: &hiddenfield('uname',$ENV{'form.uname'}).
2007: &hiddenfield('udom',$ENV{'form.udom'}).
2008: &hiddenfield('usymb',$ENV{'form.usymb'}).
2009: &hiddenfield('unewfield','').
2010: &hiddenfield('unewformula',''));
2011:
2012: # ---------------------- Make sure that this gets out, even if user hits "stop"
2013:
2014: $r->rflush();
2015:
2016: # ---------------------------------------------------------------- Full recalc?
2017:
2018:
2019: if ($ENV{'form.forcerecalc'}) {
2020: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2021: undef %spreadsheets;
2022: undef %courserdatas;
2023: undef %userrdatas;
2024: undef %defaultsheets;
2025: undef %updatedata;
2026: }
2027:
2028: # ---------------------------------------- Read new sheet or modified worksheet
2029:
2030: $r->uri=~/\/(\w+)$/;
2031:
2032: my $asheet=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2033:
2034: # ------------------------ If a new formula had been entered, go from work copy
2035:
2036: if ($ENV{'form.unewfield'}) {
2037: $r->print('<h2>Modified Workcopy</h2>');
2038: $ENV{'form.unewformula'}=~s/\'/\"/g;
2039: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2040: $ENV{'form.unewformula'}.'<p>');
2041: &setfilename($asheet,$ENV{'form.ufn'});
2042: &tmpread($asheet,
2043: $ENV{'form.unewfield'},$ENV{'form.unewformula'});
2044:
2045: } elsif ($ENV{'form.saveas'}) {
2046: &setfilename($asheet,$ENV{'form.ufn'});
2047: &tmpread($asheet);
2048: } else {
2049: &readsheet($asheet,$ENV{'form.ufn'});
2050: }
2051:
2052: # -------------------------------------------------- Print out user information
2053:
2054: unless (&gettype($asheet) eq 'classcalc') {
2055: $r->print('<p><b>User:</b> '.&getuname($asheet).
2056: '<br><b>Domain:</b> '.&getudom($asheet));
2057: if (&getcsec($asheet) eq '-1') {
2058: $r->print('<h3><font color=red>'.
2059: 'Not a student in this course</font></h3>');
2060: } else {
2061: $r->print('<br><b>Section/Group:</b> '.&getcsec($asheet));
2062: }
2063: }
2064:
2065: # ---------------------------------------------------------------- Course title
2066:
2067: $r->print('<h1>'.
2068: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
2069: '</h1><h3>'.localtime().'</h3>');
2070:
2071: # ---------------------------------------------------- See if user can see this
2072:
2073: if ((&gettype($asheet) eq 'classcalc') ||
2074: (&getuname($asheet) ne $ENV{'user.name'}) ||
2075: (&getudom($asheet) ne $ENV{'user.domain'})) {
2076: unless (&Apache::lonnet::allowed('vgr',&getcid($asheet))) {
2077: $r->print(
2078: '<h1>Access Permission Denied</h1></form></body></html>');
2079: return OK;
2080: }
2081: }
2082:
2083: # ---------------------------------------------------------- Additional options
2084:
2085: $r->print(
2086: '<input type=submit name=forcerecalc value="Completely Recalculate Sheet"><p>'
2087: );
2088: if (&gettype($asheet) eq 'assesscalc') {
2089: $r->print ('<p><font size=+2><a href="/adm/studentcalc?uname='.
2090: &getuname($asheet).
2091: '&udom='.&getudom($asheet).
2092: '">Level up: Student Sheet</a></font><p>');
2093: }
2094:
2095: if ((&gettype($asheet) eq 'studentcalc') &&
2096: (&Apache::lonnet::allowed('vgr',&getcid($asheet)))) {
2097: $r->print (
2098: '<p><font size=+2><a href="/adm/classcalc">'.
2099: 'Level up: Course Sheet</a></font><p>');
2100: }
2101:
2102:
2103: # ----------------------------------------------------------------- Save dialog
2104:
2105:
2106: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2107: my $fname=$ENV{'form.ufn'};
2108: $fname=~s/\_[^\_]+$//;
2109: if ($fname eq 'default') { $fname='course_default'; }
2110: $r->print('<input type=submit name=saveas value="Save as ...">'.
2111: '<input type=text size=20 name=newfn value="'.$fname.
2112: '"> (make default: <input type=checkbox name="makedefufn">)<p>');
2113: }
2114:
2115: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2116:
2117: # ----------------------------------------------------------------- Load dialog
2118: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2119: $r->print('<p><input type=submit name=load value="Load ...">'.
2120: '<select name="loadthissheet">'.
2121: '<option name="default">Default</option>');
2122: map {
2123: $r->print('<option name="'.$_.'"');
2124: if ($ENV{'form.ufn'} eq $_) {
2125: $r->print(' selected');
2126: }
2127: $r->print('>'.$_.'</option>');
2128: } &othersheets($asheet,&gettype($asheet));
2129: $r->print('</select><p>');
2130: if (&gettype($asheet) eq 'studentcalc') {
2131: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2132: }
2133: }
2134:
2135: # --------------------------------------------------------------- Cached sheets
2136:
2137: &expirationdates();
2138:
2139: undef %oldsheets;
2140: undef %loadedcaches;
2141:
2142: if (&gettype($asheet) eq 'classcalc') {
2143: $r->print("Loading previously calculated student sheets ...<br>\n");
2144: $r->rflush();
2145: &cachedcsheets();
2146: } elsif (&gettype($asheet) eq 'studentcalc') {
2147: $r->print("Loading previously calculated assessment sheets ...<br>\n");
2148: $r->rflush();
2149: &cachedssheets(&getuname($asheet),&getudom($asheet),
2150: &getuhome($asheet));
2151: }
2152:
2153: # ----------------------------------------------------- Update sheet, load rows
2154:
2155: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2156: $r->rflush();
2157:
2158: &updatesheet($asheet);
2159:
2160: $r->print("Updated rows, loading row data ...<br>\n");
2161: $r->rflush();
2162:
2163: &loadrows($asheet,$r);
2164:
2165: $r->print("Loaded row data, calculating sheet ...<br>\n");
2166: $r->rflush();
2167:
2168: my $calcoutput=&calcsheet($asheet);
2169: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2170:
2171: # ---------------------------------------------------- See if something to save
2172:
2173: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2174: my $fname='';
2175: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2176: $fname=~s/\W/\_/g;
2177: if ($fname eq 'default') { $fname='course_default'; }
2178: $fname.='_'.&gettype($asheet);
2179: &setfilename($asheet,$fname);
2180: $ENV{'form.ufn'}=$fname;
2181: $r->print('<p>Saving spreadsheet: '.
2182: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2183: }
2184: }
2185:
2186: # ------------------------------------------------ Write the modified worksheet
2187:
2188: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2189:
2190: &tmpwrite($asheet);
2191:
2192: if (&gettype($asheet) eq 'studentcalc') {
2193: $r->print('<br>Show rows with empty A column: ');
2194: } else {
2195: $r->print('<br>Show empty rows: ');
2196: }
2197: $r->print('<input type=checkbox name=showall onClick="submit()"');
2198: if ($ENV{'form.showall'}) { $r->print(' checked'); }
2199: $r->print('>');
2200: if (&gettype($asheet) eq 'classcalc') {
2201: $r->print(
2202: ' Output CSV format: <input type=checkbox name=showcsv onClick="submit()"');
2203: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2204: $r->print('>');
2205: }
2206: # ------------------------------------------------------------- Print out sheet
2207:
2208: &outsheet($r,$asheet);
2209: $r->print('</form></body></html>');
2210:
2211: # ------------------------------------------------------------------------ Done
2212: } else {
2213: # ----------------------------- Not in a course, or not allowed to modify parms
2214: $ENV{'user.error.msg'}=
2215: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2216: return HTTP_NOT_ACCEPTABLE;
2217: }
2218: return OK;
2219:
2220: }
2221:
2222: 1;
2223: __END__
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