--- loncom/interface/Attic/lonspreadsheet.pm 2000/11/27 12:13:10 1.2 +++ loncom/interface/Attic/lonspreadsheet.pm 2001/01/01 16:16:08 1.23 @@ -1,39 +1,90 @@ # The LearningOnline Network with CAPA # Spreadsheet/Grades Display Handler # -# 11/11,11/15,11/27 Gerd Kortemeyer +# 11/11,11/15,11/27,12/04,12/05,12/06,12/07, +# 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30, +# 01/01/01 Gerd Kortemeyer package Apache::lonspreadsheet; use strict; use Safe; +use Safe::Hole; use Opcode; -use vars qw(%v %t %f); use Apache::lonnet; -use Apache::Constants qw(:common); +use Apache::Constants qw(:common :http); +use GDBM_File; +use HTML::TokeParser; -sub deffunc { - my $safeeval=shift; +# +# These cache hashes need to be independent of user, resource and course +# (user and course are in the keys) +# +use vars qw(%spreadsheets %courserdatas %userrdatas); +# +# These global hashes are dependent on user, course and resource, +# and need to be initialized every time when a sheet is calculated +# +my %courseopt; +my %useropt; +my %parmhash; +my $csec; +my $uname; +my $udom; + +# ============================================================================= +# ===================================== Implements an instance of a spreadsheet + +sub initsheet { + my $safeeval = new Safe; + my $safehole = new Safe::Hole; + $safeeval->permit("entereval"); + $safeeval->permit(":base_math"); + $safeeval->permit("sort"); + $safeeval->deny(":base_io"); + $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); my $code=<<'ENDDEFS'; # ---------------------------------------------------- Inside of the safe space +# +# f: formulas +# t: intermediate format (variable references expanded) +# v: output values +# c: preloaded constants (A-column) +# rl: row label + +%v=(); +%t=(); +%f=(); +%c=(); +%rl=(); + +$maxrow=0; +$sheettype=''; +$filename=''; + sub mask { my ($lower,$upper)=@_; - $lower=~/([A-Z]|\*)(\d+|\*)/; + $lower=~/([A-Za-z]|\*)(\d+|\*)/; my $la=$1; my $ld=$2; - $upper=~/([A-Z]|\*)(\d+|\*)/; + $upper=~/([A-Za-z]|\*)(\d+|\*)/; my $ua=$1; my $ud=$2; my $alpha=''; my $num=''; if (($la eq '*') || ($ua eq '*')) { - $alpha='[A-Z]'; + $alpha='[A-Za-z]'; } else { - $alpha='['.$la.'-'.$ua.']'; + if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) || + ($la=~/[a-z]/) && ($ua=~/[a-z]/)) { + $alpha='['.$la.'-'.$ua.']'; + } else { + $alpha='['.$la.'-Za-'.$ua.']'; + } } if (($ld eq '*') || ($ud eq '*')) { @@ -55,11 +106,13 @@ sub mask { } else { my @lda=($ld=~m/\d/g); my @uda=($ud=~m/\d/g); - my $i; $j=0; - for ($i=0;$i<=$#lda;$i++) { + my $i; $j=0; $notdone=1; + for ($i=0;($i<=$#lda)&&($notdone);$i++) { if ($lda[$i]==$uda[$i]) { $num.=$lda[$i]; $j=$i; + } else { + $notdone=0; } } if ($j<$#lda-1) { @@ -77,14 +130,15 @@ sub mask { } $num.=')'; } else { - $num.='['.$lda[$#lda].'-'.$uda[$#uda].']'; + if ($lda[$#lda]!=$uda[$#uda]) { + $num.='['.$lda[$#lda].'-'.$uda[$#uda].']'; + } } } } - return '^'.$alpha.$num.'$'; + return '^'.$alpha.$num."\$"; } - sub NUM { my $mask=mask(@_); my $num=0; @@ -205,33 +259,61 @@ sub SUMMIN { return $sum; } - -# ------------------------------------------- End of "Inside of the safe space" -ENDDEFS - $safeeval->reval($code); -} - sub sett { %t=(); + my $pattern=''; + if ($sheettype eq 'assesscalc') { + $pattern='A'; + } else { + $pattern='[A-Z]'; + } map { - if ($f{$_}) { - $t{$_}=$f{$_}; - $t{$_}=~s/\.+/\,/g; - $t{$_}=~s/(^|[^\"\'])([A-Z]\d+)/$1\$v\{\'$2\'\}/g; + if ($_=~/template\_(\w)/) { + my $col=$1; + unless ($col=~/^$pattern/) { + map { + if ($_=~/A(\d+)/) { + my $trow=$1; + if ($trow) { + my $lb=$col.$trow; + $t{$lb}=$f{'template_'.$col}; + $t{$lb}=~s/\#/$trow/g; + $t{$lb}=~s/\.\.+/\,/g; + $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g; + } + } + } keys %f; + } + } + } keys %f; + map { + if (($f{$_}) && ($_!~/template\_/)) { + if ($_=~/^$pattern/) { + unless ($f{$_}=~/^\!/) { + $t{$_}=$c{$_}; + } + } else { + $t{$_}=$f{$_}; + $t{$_}=~s/\.\.+/\,/g; + $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g; + } } } keys %f; + $t{'A0'}=$f{'A0'}; + $t{'A0'}=~s/\.\.+/\,/g; + $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g; } -sub calcv { - my $safeeval=shift; +sub calc { %v=(); + &sett(); my $notfinished=1; my $depth=0; while ($notfinished) { $notfinished=0; map { my $old=$v{$_}; - $v{$_}=$safeeval->reval($t{$_}); + $v{$_}=eval($t{$_}); if ($@) { %v=(); return $@; @@ -247,42 +329,977 @@ sub calcv { return ''; } +sub templaterow { + my @cols=(); + $cols[0]='Template'; + map { + my $fm=$f{'template_'.$_}; + $fm=~s/[\'\"]/\&\#34;/g; + $cols[$#cols+1]="'template_$_','$fm'".'___eq___'.$fm; + } ('A','B','C','D','E','F','G','H','I','J','K','L','M', + 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', + 'a','b','c','d','e','f','g','h','i','j','k','l','m', + 'n','o','p','q','r','s','t','u','v','w','x','y','z'); + return @cols; +} + +sub outrowassess { + my $n=shift; + my @cols=(); + if ($n) { + $cols[0]=$rl{$f{'A'.$n}}; + } else { + $cols[0]='Export'; + } + map { + my $fm=$f{$_.$n}; + $fm=~s/[\'\"]/\&\#34;/g; + $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n}; + } ('A','B','C','D','E','F','G','H','I','J','K','L','M', + 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', + 'a','b','c','d','e','f','g','h','i','j','k','l','m', + 'n','o','p','q','r','s','t','u','v','w','x','y','z'); + return @cols; +} + +sub outrow { + my $n=shift; + my @cols=(); + if ($n) { + $cols[0]=$rl{$f{'A'.$n}}; + } else { + $cols[0]='Export'; + } + map { + my $fm=$f{$_.$n}; + $fm=~s/[\'\"]/\&\#34;/g; + $cols[$#cols+1]="'$_$n','$fm'".'___eq___'.$v{$_.$n}; + } ('A','B','C','D','E','F','G','H','I','J','K','L','M', + 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', + 'a','b','c','d','e','f','g','h','i','j','k','l','m', + 'n','o','p','q','r','s','t','u','v','w','x','y','z'); + return @cols; +} + +sub exportrowa { + my $rowa=''; + map { + $rowa.=$v{$_.'0'}."___;___"; + } ('A','B','C','D','E','F','G','H','I','J','K','L','M', + 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z'); + $rowa=~s/\_\_\_\;\_\_\_$//; + return $rowa; +} + +# ------------------------------------------- End of "Inside of the safe space" +ENDDEFS + $safeeval->reval($code); + return $safeeval; +} + +# ------------------------------------------------ Add or change formula values + +sub setformulas { + my ($safeeval,@f)=@_; + $safeeval->reval('%f='."('".join("','",@f)."');"); +} + +# ------------------------------------------------ Add or change formula values + +sub setconstants { + my ($safeeval,@c)=@_; + $safeeval->reval('%c='."('".join("','",@c)."');"); +} + +# ------------------------------------------------ Add or change formula values + +sub setrowlabels { + my ($safeeval,@rl)=@_; + $safeeval->reval('%rl='."('".join("','",@rl)."');"); +} + +# ------------------------------------------------------- Calculate spreadsheet + +sub calcsheet { + my $safeeval=shift; + $safeeval->reval('&calc();'); +} + +# ------------------------------------------------------------------ Get values + +sub getvalues { + my $safeeval=shift; + return $safeeval->reval('%v'); +} + +# ---------------------------------------------------------------- Get formulas + +sub getformulas { + my $safeeval=shift; + return $safeeval->reval('%f'); +} + +# -------------------------------------------------------------------- Set type + +sub settype { + my ($safeeval,$type)=@_; + $safeeval->reval('$sheettype="'.$type.'";'); +} + +# -------------------------------------------------------------------- Get type + +sub gettype { + my $safeeval=shift; + return $safeeval->reval('$sheettype'); +} +# ------------------------------------------------------------------ Set maxrow + +sub setmaxrow { + my ($safeeval,$row)=@_; + $safeeval->reval('$maxrow='.$row.';'); +} + +# ------------------------------------------------------------------ Get maxrow + +sub getmaxrow { + my $safeeval=shift; + return $safeeval->reval('$maxrow'); +} + +# ---------------------------------------------------------------- Set filename + +sub setfilename { + my ($safeeval,$fn)=@_; + $safeeval->reval('$filename="'.$fn.'";'); +} + +# ---------------------------------------------------------------- Get filename + +sub getfilename { + my $safeeval=shift; + return $safeeval->reval('$filename'); +} + +# ------------------------------------------------------------- Export of A-row + +sub exportrow { + my $safeeval=shift; + return $safeeval->reval('&exportrowa()'); +} + +# ========================================================== End of Spreadsheet +# ============================================================================= + + +# --------------------------------------------- Produce output row n from sheet + +sub rown { + my ($safeeval,$n)=@_; + my $defaultbg; + unless ($n eq '-') { + $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF'; + } else { + $defaultbg='#E0FF'; + } + my $rowdata="\n$n"; + my $showf=0; + my $proc; + my $maxred; + if (&gettype($safeeval) eq 'assesscalc') { + $proc='&outrowassess'; + $maxred=1; + } else { + $proc='&outrow'; + $maxred=26; + } + if ($n eq '-') { $proc='&templaterow'; $n=-1; } + map { + my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD'); + my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_); + if ($showf==0) { $vl=$_; } + if ($showf<=$maxred) { $bgcolor='#FFDDDD'; } + if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; } + if (($showf>$maxred) || ((!$n) && ($showf>0))) { + if ($vl eq '') { + $vl='#'; + } + $rowdata.= + ''.$vl. + ''; + } else { + $rowdata.=' '.$vl.' '; + } + $showf++; + } $safeeval->reval($proc.'('.$n.')'); + return $rowdata.''; +} + +# ------------------------------------------------------------- Print out sheet + +sub outsheet { + my $safeeval=shift; + my $maxred; + my $realm; + if (&gettype($safeeval) eq 'assesscalc') { + $maxred=1; + $realm='Assessment'; + } elsif (&gettype($safeeval) eq 'studentcalc') { + $maxred=26; + $realm='User'; + } else { + $maxred=26; + $realm='Course'; + } + my $maxyellow=52-$maxred; + my $tabledata=''. + ''. + ''; + my $showf=0; + map { + $showf++; + if ($showf<=$maxred) { + $tabledata.='"; + } ('A','B','C','D','E','F','G','H','I','J','K','L','M', + 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', + 'a','b','c','d','e','f','g','h','i','j','k','l','m', + 'n','o','p','q','r','s','t','u','v','w','x','y','z'); + $tabledata.=''; + my $row; + my $maxrow=&getmaxrow($safeeval); + $tabledata.=&rown($safeeval,'-'); + for ($row=0;$row<=$maxrow;$row++) { + $tabledata.=&rown($safeeval,$row); + } + $tabledata.='
'. + $realm.'ImportCalculations
'; + } else { + $tabledata.=''; + } + $tabledata.="$_
'; +} + + + +# ------------------------------------- Read spreadsheet formulas from a course + +sub readsheet { + my ($safeeval,$fn,$r)=@_; + my %f=(); + if (($fn eq '') || ($fn=~/^default\_/)) { + my $sheetxml=''; + { + my $fh; + if ($fh=Apache::File->new($r->dir_config('lonIncludes'). + '/default.'.&gettype($safeeval))) { + $sheetxml=join('',<$fh>); + } + } + my $parser=HTML::TokeParser->new(\$sheetxml); + my $token; + while ($token=$parser->get_token) { + if ($token->[0] eq 'S') { + if ($token->[1] eq 'field') { + $f{$token->[2]->{'col'}.$token->[2]->{'row'}}= + $parser->get_text('/field'); + } + if ($token->[1] eq 'template') { + $f{'template_'.$token->[2]->{'col'}}= + $parser->get_text('/template'); + } + } + } + &setfilename($safeeval,'default_'.&gettype($safeeval)); + } else { + &setfilename($safeeval,$fn); + unless ($spreadsheets{$fn}) { + $spreadsheets{$fn}=''; + my $reply=&Apache::lonnet::reply('dump:'. + $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'. + $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.':'.$fn, + $ENV{'course.'.$ENV{'request.course.id'}.'.home'}); + unless ($reply=~/^error\:/) { + $spreadsheets{$fn}=$reply; + } + } + map { + my ($name,$value)=split(/\=/,$_); + $f{&Apache::lonnet::unescape($name)}= + &Apache::lonnet::unescape($value); + } split(/\&/,$spreadsheets{$fn}); + } + + &setformulas($safeeval,%f); +} + +# ------------------------------------------------------------ Save spreadsheet + +sub writesheet { + my $safeeval=shift; + if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) { + my %f=&getformulas($safeeval); + my $sheetdata=''; + map { + $sheetdata.=&Apache::lonnet::escape($_).'='. + &Apache::lonnet::escape($f{$_}).'&'; + } keys %f; + $sheetdata=~s/\&$//; + my $reply=&Apache::lonnet::reply('put:'. + $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'. + $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.':'. + &getfilename($safeeval).':'. + $sheetdata, + $ENV{'course.'.$ENV{'request.course.id'}.'.home'}); + if ($reply eq 'ok') { + return &Apache::lonnet::reply('put:'. + $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'. + $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.':'. + &gettype($safeeval).'_spreadsheets:'. + &Apache::lonnet::escape(&getfilename($safeeval)).'='. + $ENV{'user.name'}, + $ENV{'course.'.$ENV{'request.course.id'}.'.home'}); + } else { + return $reply; + } + } + return 'unauthorized'; +} + +# ----------------------------------------------- Make a temp copy of the sheet + +sub tmpwrite { + my ($safeeval,$tmpdir,$symb)=@_; + my $fn=$uname.'_'.$udom.'_spreadsheet_'.$symb.'_'.&getfilename($safeeval); + $fn=~s/\W/\_/g; + $fn=$tmpdir.$fn.'.tmp'; + my $fh; + if ($fh=Apache::File->new('>'.$fn)) { + print $fh join("\n",&getformulas($safeeval)); + } +} + +# ---------------------------------------------------------- Read the temp copy + +sub tmpread { + my ($safeeval,$tmpdir,$symb,$nfield,$nform)=@_; + my $fn=$uname.'_'.$udom.'_spreadsheet_'.$symb.'_'.&getfilename($safeeval); + $fn=~s/\W/\_/g; + $fn=$tmpdir.$fn.'.tmp'; + my $fh; + my %fo=(); + if ($fh=Apache::File->new($fn)) { + my $name; + while ($name=<$fh>) { + chomp($name); + my $value=<$fh>; + chomp($value); + $fo{$name}=$value; + } + } + if ($nfield) { $fo{$nfield}=$nform; } + &setformulas($safeeval,%fo); +} + +# --------------------------------------------------------------- Read metadata + +sub readmeta { + my $fn=shift; + unless ($fn=~/\.meta$/) { $fn.='meta'; } + my $content; + my %returnhash=(); + { + my $fh=Apache::File->new($fn); + $content=join('',<$fh>); + } + my $parser=HTML::TokeParser->new(\$content); + my $token; + while ($token=$parser->get_token) { + if ($token->[0] eq 'S') { + my $entry=$token->[1]; + if (($entry eq 'stores') || ($entry eq 'parameter')) { + my $unikey=$entry; + $unikey.='_'.$token->[2]->{'part'}; + $unikey.='_'.$token->[2]->{'name'}; + $returnhash{$unikey}=$token->[2]->{'display'}; + } + } + } + return %returnhash; +} + +# ================================================================== Parameters +# -------------------------------------------- Figure out a cascading parameter + +sub parmval { + my ($what,$symb)=@_; + + unless ($symb) { return ''; } + my $result=''; + + my ($mapname,$id,$fn)=split(/\_\_\_/,$symb); +# ----------------------------------------------------- Cascading lookup scheme + my $rwhat=$what; + $what=~s/^parameter\_//; + $what=~s/\_/\./; + + my $symbparm=$symb.'.'.$what; + my $mapparm=$mapname.'___(all).'.$what; + + my $seclevel= + $ENV{'request.course.id'}.'.['. + $csec.'].'.$what; + my $seclevelr= + $ENV{'request.course.id'}.'.['. + $csec.'].'.$symbparm; + my $seclevelm= + $ENV{'request.course.id'}.'.['. + $csec.'].'.$mapparm; + + my $courselevel= + $ENV{'request.course.id'}.'.'.$what; + my $courselevelr= + $ENV{'request.course.id'}.'.'.$symbparm; + my $courselevelm= + $ENV{'request.course.id'}.'.'.$mapparm; + +# ---------------------------------------------------------- fourth, check user + + if ($uname) { + + if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; } + + if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; } + + if ($useropt{$courselevel}) { return $useropt{$courselevel}; } + + } + +# --------------------------------------------------------- third, check course + + if ($csec) { + + if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; } + + if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; } + + if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; } + + } + + if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; } + + if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; } + + if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; } + +# ----------------------------------------------------- second, check map parms + + my $thisparm=$parmhash{$symbparm}; + if ($thisparm) { return $thisparm; } + +# -------------------------------------------------------- first, check default + + return &Apache::lonnet::metadata($fn,$rwhat.'.default'); + +} + +# ---------------------------------------------- Update rows for course listing + +sub updatestudentrows { + my $safeeval=shift; + my $cid=$ENV{'request.course.id'}; + my $classlst=&Apache::lonnet::reply + ('dump:'.$ENV{'course.'.$cid.'.domain'}.':'. + $ENV{'course.'.$cid.'.num'}.':classlist', + $ENV{'course.'.$cid.'.home'}); + my %currentlist=(); + my $now=time; + unless ($classlst=~/^error\:/) { + map { + my ($name,$value)=split(/\=/,$_); + my ($end,$start)=split(/\_/,&Apache::lonnet::unescape($value)); + my $active=1; + if (($end) && ($now>$end)) { $active=0; } + if ($active) { + $currentlist{&Apache::lonnet::unescape($name)}=1; + } + } split(/\&/,$classlst); +# +# -------------------- Find discrepancies between the course row table and this +# + my %f=&getformulas($safeeval); + my $changed=0; + + my $maxrow=0; + my %existing=(); + +# ----------------------------------------------------------- Now obsolete rows + map { + if ($_=~/^A(\d+)/) { + $maxrow=($1>$maxrow)?$1:$maxrow; + $existing{$f{$_}}=1; + unless ((defined($currentlist{$f{$_}})) || (!$1)) { + $f{$_}='!!! Obsolete'; + $changed=1; + } + } + } keys %f; + +# -------------------------------------------------------- New and unknown keys + + map { + unless ($existing{$_}) { + $changed=1; + $maxrow++; + $f{'A'.$maxrow}=$_; + } + } keys %currentlist; + + if ($changed) { &setformulas($safeeval,%f); } + + &setmaxrow($safeeval,$maxrow); + &setrowlabels($safeeval,%currentlist); + + } else { + return 'Could not access course data'; + } +} +# ----------------------------------------------------------------- Update rows + +sub updaterows { + my $safeeval=shift; + my %bighash; +# -------------------------------------------------------------------- Tie hash + if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', + &GDBM_READER,0640)) { +# --------------------------------------------------------- Get all assessments + + my %allkeys=(); + my %allassess=(); + + my $stype=&gettype($safeeval); + + map { + if ($_=~/^src\_(\d+)\.(\d+)$/) { + my $mapid=$1; + my $resid=$2; + my $id=$mapid.'.'.$resid; + my $srcf=$bighash{$_}; + if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) { + my $symb= + &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}). + '___'.$resid.'___'. + &Apache::lonnet::declutter($srcf); + $allassess{$symb}=$bighash{'title_'.$id}; + + if ($stype eq 'assesscalc') { + map { + if (($_=~/^stores\_(.*)/) || ($_=~/^parameter\_(.*)/)) { + my $key=$_; + my $display= + &Apache::lonnet::metadata($srcf,$key.'.display'); + unless ($display) { + $display= + &Apache::lonnet::metadata($srcf,$key.'.name'); + } + $allkeys{$key}=$display; + } + } split(/\,/,&Apache::lonnet::metadata($srcf,'keys')); + } + } + } + } keys %bighash; + untie(%bighash); + +# +# %allkeys has a list of storage and parameter displays by unikey +# %allassess has a list of all resource displays by symb +# +# -------------------- Find discrepancies between the course row table and this +# + my %f=&getformulas($safeeval); + my $changed=0; + + my %current=(); + if ($stype eq 'assesscalc') { + %current=%allkeys; + } elsif ($stype eq 'studentcalc') { + %current=%allassess; + } + + my $maxrow=0; + my %existing=(); + +# ----------------------------------------------------------- Now obsolete rows + map { + if ($_=~/^A(\d+)/) { + $maxrow=($1>$maxrow)?$1:$maxrow; + $existing{$f{$_}}=1; + unless ((defined($current{$f{$_}})) || (!$1)) { + $f{$_}='!!! Obsolete'; + $changed=1; + } + } + } keys %f; + +# -------------------------------------------------------- New and unknown keys + + map { + unless ($existing{$_}) { + $changed=1; + $maxrow++; + $f{'A'.$maxrow}=$_; + } + } keys %current; + + if ($changed) { &setformulas($safeeval,%f); } + + &setmaxrow($safeeval,$maxrow); + &setrowlabels($safeeval,%current); + + } else { + return 'Could not access course data'; + } +} + +# --------------------------------------------------- Load data for one student + +sub rowazstudent { + my $safeeval=shift; + my %c=(); + my %f=&getformulas($safeeval); + map { + if ($_=~/^A(\d+)/) { + my $row=$1; + unless ($f{$_}=~/^\!/) { + my @assessdata=split(/\_\_\_\;\_\_\_/, + &Apache::lonnet::ssi( + '/res/msu/korte/junk.assesscalc',('utarget' => 'export', + 'uname' => $uname, + 'udom' => $udom, + 'usymb' => $f{$_}))); + my $index=0; + map { + if ($assessdata[$index]) { + $c{$_.$row}=$assessdata[$index]; + unless ($_ eq 'A') { + $f{$_.$row}='import'; + } + } + $index++; + } ('A','B','C','D','E','F','G','H','I','J','K','L','M', + 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z'); + } + } + } keys %f; + &setformulas($safeeval,%f); + &setconstants($safeeval,%c); +} + +# ------------------------------------------------ Load data for one assessment + +sub rowaassess { + my ($safeeval,$symb)=@_; + my $uhome=&Apache::lonnet::homeserver($uname,$udom); + my $namespace; + unless ($namespace=$ENV{'request.course.id'}) { return ''; } + +# ----------------------------------------------------------- Get stored values + my $answer=&Apache::lonnet::reply( + "restore:$udom:$uname:". + &Apache::lonnet::escape($namespace).":". + &Apache::lonnet::escape($symb),$uhome); + my %returnhash=(); + map { + my ($name,$value)=split(/\=/,$_); + $returnhash{&Apache::lonnet::unescape($name)}= + &Apache::lonnet::unescape($value); + } split(/\&/,$answer); + my $version; + for ($version=1;$version<=$returnhash{'version'};$version++) { + map { + $returnhash{$_}=$returnhash{$version.':'.$_}; + } split(/\:/,$returnhash{$version.':keys'}); + } +# ----------------------------- returnhash now has all stores for this resource + +# ---------------------------- initialize coursedata and userdata for this user + %courseopt=(); + %useropt=(); + my $uhome=&Apache::lonnet::homeserver($uname,$udom); + unless ($uhome eq 'no_host') { +# -------------------------------------------------------------- Get coursedata + unless + ((time-$courserdatas{$ENV{'request.course.id'}.'.last_cache'})<120) { + my $reply=&Apache::lonnet::reply('dump:'. + $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'. + $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.':resourcedata', + $ENV{'course.'.$ENV{'request.course.id'}.'.home'}); + if ($reply!~/^error\:/) { + $courserdatas{$ENV{'request.course.id'}}=$reply; + $courserdatas{$ENV{'request.course.id'}.'.last_cache'}=time; + } + } + map { + my ($name,$value)=split(/\=/,$_); + $courseopt{&Apache::lonnet::unescape($name)}= + &Apache::lonnet::unescape($value); + } split(/\&/,$courserdatas{$ENV{'request.course.id'}}); +# --------------------------------------------------- Get userdata (if present) + unless + ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<120) { + my $reply= + &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome); + if ($reply!~/^error\:/) { + $userrdatas{$uname.'___'.$udom}=$reply; + $userrdatas{$uname.'___'.$udom.'.last_cache'}=time; + } + } + map { + my ($name,$value)=split(/\=/,$_); + $useropt{&Apache::lonnet::unescape($name)}= + &Apache::lonnet::unescape($value); + } split(/\&/,$userrdatas{$uname.'___'.$udom}); + } +# -- now courseopt, useropt initialized for this user and course (used parmval) + + my %c=(); + my %f=&getformulas($safeeval); + map { + if ($_=~/^A/) { + unless ($f{$_}=~/^\!/) { + if ($f{$_}=~/^parameter/) { + $c{$_}=&parmval($f{$_},$symb); + } else { + my $key=$f{$_}; + $key=~s/^stores\_/resource\./; + $key=~s/\_/\./; + $c{$_}=$returnhash{$key}; + } + } + } + } keys %f; + + &setconstants($safeeval,%c); +} + +# --------------------------------------------------------- Various form fields + +sub textfield { + my ($title,$name,$value)=@_; + return "\n

$title:
". + ''; +} + +sub hiddenfield { + my ($name,$value)=@_; + return "\n".''; +} + +sub selectbox { + my ($title,$name,$value,%options)=@_; + my $selout="\n

$title:
".''; +} + +# ================================================================ Main handler + sub handler { - %v=(); - %t=(); - %f=(); - my $safeeval = new Safe; - my $safehole = new Safe::Hole; - $safeeval->permit("entereval"); - $safeeval->permit(":base_math"); - $safeeval->permit("sort"); - $safeeval->deny(":base_io"); - $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); - $safeeval->share('%v','%t','%f'); - &deffunc($safeeval); - $f{'A3'}=5; - $f{'A4'}=3; - $f{'A5'}=8; - $f{'E100'}=5; - $f{'C3'}='A3+6'; - $f{'B4'}='8+int(C3/3)'; - $f{'C7'}='A3+B4'; - $f{'G8'}='MEAN("E*")'; - $f{'G5'}='A3+SUMMIN(2,"A*")'; - $f{'G6'}='A3+SUM("A*")'; - $f{'G7'}='STDDEV("A*")'; - $f{'G9'}='NUM("G*")'; - $f{'H10'}='MEAN("E*")'; - $f{'G10'}='BIN(3,5,"A*")'; - &sett(); - print &calcv($safeeval)."\n"; - print $v{'C7'}."\n"; - print $t{'G5'}.' - '.$v{'G5'}."\n"; - print $t{'G6'}.' - '.$v{'G6'}."\n"; - print $t{'G7'}.' - '.$v{'G7'}."\n"; - print $t{'G8'}.' - '.$v{'G8'}."\n"; - print $t{'G9'}.' - '.$v{'G9'}."\n"; - print $t{'G10'}.' - '.$v{'G10'}."\n"; + my $r=shift; + + $uname=''; + $udom=''; + $csec=''; + + if ($r->header_only) { + $r->content_type('text/html'); + $r->send_http_header; + return OK; + } + +# ----------------------------------------------------- Needs to be in a course + + if (($ENV{'request.course.fn'}) || + ($ENV{'request.state'} eq 'construct')) { + +# --------------------------- Get query string for limited number of parameters + + map { + my ($name, $value) = split(/=/,$_); + $value =~ tr/+/ /; + $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; + if (($name eq 'uname') || ($name eq 'udom') || + ($name eq 'usymb') || ($name eq 'ufn')) { + unless ($ENV{'form.'.$name}) { + $ENV{'form.'.$name}=$value; + } + } + } (split(/&/,$ENV{'QUERY_STRING'})); + +# ------------------------------------------- Nothing there? Must be login user + unless ($ENV{'form.uname'}) { + $uname=$ENV{'user.name'}; + $udom=$ENV{'user.domain'}; + } else { + $uname=$ENV{'form.uname'}; + $udom=$ENV{'form.udom'}; + } +# ----------------------------------------------------------- Change of target? + + my $reroute=($ENV{'form.utarget'} eq 'export'); + +# ------------------------------------------------------------------- Open page + + $r->content_type('text/html'); + $r->header_out('Cache-control','no-cache'); + $r->header_out('Pragma','no-cache'); + $r->send_http_header; + +# --------------------------------------------------------------- Screen output + + unless ($reroute) { + $r->print('LON-CAPA Spreadsheet'); + $r->print(< + + function celledit(cn,cf) { + var cnf=prompt(cn,cf); + if (cnf!=null) { + document.sheet.unewfield.value=cn; + document.sheet.unewformula.value=cnf; + document.sheet.submit(); + } + } + + +ENDSCRIPT + $r->print(''. + ''. + '

LON-CAPA Spreadsheet

'. + '
'. + &hiddenfield('uname',$ENV{'form.uname'}). + &hiddenfield('udom',$ENV{'form.udom'}). + &hiddenfield('usymb',$ENV{'form.usymb'}). + &hiddenfield('unewfield',''). + &hiddenfield('unewformula','')); + } + +# ---------------------------------------- Read new sheet or modified worksheet + + my $sheetone=initsheet(); + $r->uri=~/\/(\w+)$/; + &settype($sheetone,$1); + if ($ENV{'form.unewfield'}) { + $r->print('

Modified Workcopy

'); + $ENV{'form.unewformula'}=~s/\'/\"/g; + $r->print('

New formula: '.$ENV{'form.unewfield'}.'='. + $ENV{'form.unewformula'}.'

'); + &setfilename($sheetone,$ENV{'form.ufn'}); + &tmpread($sheetone,$r->dir_config('lonDaemons').'/tmp/', + $ENV{'form.usymb'}, + $ENV{'form.unewfield'},$ENV{'form.unewformula'}); + } elsif ($ENV{'form.saveas'}) { + &setfilename($sheetone,$ENV{'form.ufn'}); + &tmpread($sheetone,$r->dir_config('lonDaemons').'/tmp/', + $ENV{'form.usymb'}); + } else { + &readsheet($sheetone,$ENV{'form.ufn'},$r); + $ENV{'form.ufn'}=&getfilename($sheetone); + } + + if (&gettype($sheetone) eq 'classcalc') { +# ---------------------------------- For course view: get courselist and update + &updatestudentrows($sheetone); + } else { +# ----------------- For assessment and student: See if all import rows uptodate + + if (tie(%parmhash,'GDBM_File', + $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640)) { + $csec=&Apache::lonnet::usection($udom,$uname,$ENV{'request.course.id'}); + if ($csec eq '-1') { + $r->print('

'. + "User '$uname' at domain '$udom' not a student in this course

"); + } + &updaterows($sheetone); + untie(%parmhash); + } else { + $r->print('

'. + 'Could not initialize import fields (not in a course)

'); + } + } +# ---------------------------------------------------- See if something to save + if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) { + my $fname=''; + if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) { + $fname=~s/\W/\_/g; + if ($fname eq 'default') { $fname='course_default'; } + $fname.='_'.&gettype($sheetone); + &setfilename($sheetone,$fname); + $ENV{'form.ufn'}=$fname; + my $reply=&writesheet($sheetone); + unless ($reroute) { + $r->print('

Saving spreadsheet: '.$reply.'

'); + } + } + } +# ------------------------------------------------ Write the modified worksheet + + &tmpwrite($sheetone,$r->dir_config('lonDaemons').'/tmp/', + $ENV{'form.usymb'}); + +# ----------------------------------------------------- Print user, course, etc + unless ($reroute) { + if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) { + my $fname=$ENV{'form.ufn'}; + $fname=~s/\_[^\_]+$//; + if ($fname eq 'default') { $fname='course_default'; } + $r->print(''. + '

'); + } + $r->print(&hiddenfield('ufn',$ENV{'form.ufn'})); + unless (&gettype($sheetone) eq 'classcalc') { + $r->print('
User: '.$uname.'
Domain: '.$udom); + } + $r->print('

'. + $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.'

'); + if ($csec) { + $r->print('

Group/Section: '.$csec.'

'); + } + } +# -------------------------------------------------------- Import and calculate + + if (&gettype($sheetone) eq 'assesscalc') { + &rowaassess($sheetone,$ENV{'form.usymb'}); + } elsif (&gettype($sheetone) eq 'studentcalc') { + &rowazstudent($sheetone); + } + my $calcoutput=&calcsheet($sheetone); + unless ($reroute) { + $r->print('

'.$calcoutput.'

'); + } + +# ------------------------------------------------------- Print or export sheet + unless ($reroute) { + $r->print(&outsheet($sheetone)); + + $r->print('
'); + } else { + $r->print(&exportrow($sheetone)); + } +# ------------------------------------------------------------------------ Done + } else { +# ----------------------------- Not in a course, or not allowed to modify parms + $ENV{'user.error.msg'}= + $r->uri.":opa:0:0:Cannot modify spreadsheet"; + return HTTP_NOT_ACCEPTABLE; + } + return OK; } 1;