File:
[LON-CAPA] /
loncom /
interface /
spreadsheet /
assesscalc.pm
Revision
1.21:
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Wed Sep 10 18:33:35 2003 UTC (20 years, 11 months ago) by
matthew
Branches:
MAIN
CVS tags:
HEAD
1. Be more vigilent about clearing user parameter caches (%useropt)
2. Added 'loadtime' value to %useropt which prevents it from being requested
again and again just because the student did not have any data...
(how many times will I create and fix the same bug?)
3. Break compute method down to facilitate testing.
4. More fatal warning enduced robustness in a few if statements.
#
# $Id: assesscalc.pm,v 1.21 2003/09/10 18:33:35 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
# The LearningOnline Network with CAPA
# Spreadsheet/Grades Display Handler
#
# POD required stuff:
=head1 NAME
assesscalc
=head1 SYNOPSIS
=head1 DESCRIPTION
=cut
###################################################
### AssessSheet ###
###################################################
package Apache::assesscalc;
use strict;
use warnings FATAL=>'all';
no warnings 'uninitialized';
use Apache::Constants qw(:common :http);
use Apache::lonnet;
use Apache::loncommon;
use Apache::Spreadsheet;
use HTML::Entities();
use Spreadsheet::WriteExcel;
use GDBM_File;
use Time::HiRes;
@Apache::assesscalc::ISA = ('Apache::Spreadsheet');
########################################################
########################################################
=pod
=head2 Package Variables
=over 4
=item %Exportrows
=item $current_name
=item $current_domain
=item $current_course
=item %parmhash
=item %nice_parameter_name
=item %useropt
=item %courseopt
=back
=cut
########################################################
########################################################
my %Exportrows;
my $current_name;
my $current_domain;
my $current_course;
my %parmhash;
my %nice_parameter_name;
my %useropt;
my %courseopt;
########################################################
########################################################
=pod
=head2 Package Subroutines
=item &clear_package()
Reset all package variables.
=cut
########################################################
########################################################
sub clear_package {
undef(%Exportrows);
undef($current_name);
undef($current_domain);
undef($current_course);
undef(%useropt);
undef(%courseopt);
}
sub initialize {
&clear_package();
}
########################################################
########################################################
=pod
=item &initialize_package()
=cut
########################################################
########################################################
sub initialize_package {
my ($sname,$sdomain) = @_;
$current_name = $sname;
$current_domain = $sdomain;
undef(%useropt);
if ($current_course ne $ENV{'request.course.id'}) {
$current_course = $ENV{'request.course.id'};
undef(%courseopt);
}
&load_cached_export_rows();
&load_parameter_caches();
}
########################################################
########################################################
=pod
=item &load_parameter_caches()
=cut
########################################################
########################################################
sub load_parameter_caches {
my $userprefix = $current_name.':'.$current_domain.'_';
$userprefix =~ s/:/_/g;
#
# Course Parameters Cache
if (! %courseopt) {
$current_course = $ENV{'request.course.id'};
undef(%courseopt);
if (! defined($current_name) || ! defined($current_domain)) {
return;
}
my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
my $id = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
my %Tmp = &Apache::lonnet::dump('resourcedata',$dom,$id);
while (my ($name,$value) = each(%Tmp)) {
$courseopt{$name}=$value;
}
}
if (! %useropt) {
my %Tmp = &Apache::lonnet::dump('resourcedata',
$current_domain,$current_name);
while (my ($name,$value) = each(%Tmp)) {
if ($name =~ /^error: 2/ || $name =~ /no such file/) {
undef(%useropt);
last;
}
$useropt{$userprefix.$name}=$value;
}
$useropt{'loadtime'} = time;
}
}
########################################################
########################################################
=pod
=head2 assesscalc object methods
=cut
########################################################
########################################################
sub ensure_current_parameter_caches {
my $self = shift;
##
## Check for a modified parameters
##
if (! defined($current_course) ||
$current_course ne $ENV{'request.course.id'} ) {
$current_course = $ENV{'request.course.id'};
undef(%courseopt);
}
##
## Check for new user
##
if (! defined($current_name) || $current_name ne $self->{'name'} ||
! defined($current_domain) || $current_domain ne $self->{'domain'}) {
$current_domain = $self->{'domain'};
$current_name = $self->{'name'};
undef(%useropt);
}
&load_parameter_caches();
}
##################################################
##################################################
=pod
=item &parmval()
Determine the value of a parameter.
Inputs: $what, the parameter needed, $symb, $uname, $udom, $csec
Returns: The value of a parameter, or '' if none.
This function cascades through the possible levels searching for a value for
a parameter. The levels are checked in the following order:
user, course (at section level and course level), map, and lonnet::metadata.
This function uses %parmhash, which must be tied prior to calling it.
This function also requires %courseopt and %useropt to be initialized for
this user and course.
=cut
##################################################
##################################################
sub parmval {
my $self = shift;
my ($what,$symb,$uname,$udom,$csec,$recurse)=@_;
$uname = $self->{'name'} if (! defined($uname));
$udom = $self->{'domain'} if (! defined($udom));
$csec = $self->{'section'} if (! defined($csec));
$symb = $self->{'symb'} if (! defined($symb));
#
my $result='';
#
# This should be a
my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
# Cascading lookup scheme
my $rwhat=$what;
$what =~ s/^parameter\_//;
$what =~ s/\_([^\_]+)$/\.$1/;
#
my $symbparm = $symb.'.'.$what;
my $mapparm = $mapname.'___(all).'.$what;
my $courseprefix = $self->{'cid'};
my $usercourseprefix = $uname.'_'.$udom.'_'.$self->{'cid'};
#
my $seclevel = $courseprefix.'.['.$csec.'].'.$what;
my $seclevelr = $courseprefix.'.['.$csec.'].'.$symbparm;
my $seclevelm = $courseprefix.'.['.$csec.'].'.$mapparm;
#
my $courselevel = $courseprefix.'.'.$what;
my $courselevelr = $courseprefix.'.'.$symbparm;
my $courselevelm = $courseprefix.'.'.$mapparm;
#
my $ucourselevel = $usercourseprefix.'.'.$what;
my $ucourselevelr = $usercourseprefix.'.'.$symbparm;
my $ucourselevelm = $usercourseprefix.'.'.$mapparm;
# check user
if (defined($uname)) {
return $useropt{$ucourselevelr} if (defined($useropt{$ucourselevelr}));
return $useropt{$ucourselevelm} if (defined($useropt{$ucourselevelm}));
return $useropt{$ucourselevel} if (defined($useropt{$ucourselevel}));
}
# check section
if (defined($csec)) {
return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
}
#
# check course
return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
# check map parms
my $thisparm = $parmhash{$symbparm};
return $thisparm if (defined($thisparm));
# check default
$thisparm = &Apache::lonnet::metadata($fn,$rwhat.'.default');
return $thisparm if (defined($thisparm));
#
# Cascade Up
my $space=$what;
$space=~s/\.\w+$//;
if ($space ne '0') {
my @parts=split(/_/,$space);
my $id=pop(@parts);
my $part=join('_',@parts);
if ($part eq '') { $part='0'; }
my $newwhat=$rwhat;
$newwhat=~s/\Q$space\E/$part/;
my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1);
if (defined($partgeneral)) { return $partgeneral; }
}
if ($recurse) { return undef; }
my $pack_def=&Apache::lonnet::packages_tab_default($fn,'resource.'.$what);
if (defined($pack_def)) { return $pack_def; }
#nothing defined
return '';
}
sub get_html_title {
my $self = shift;
my ($assess_title,$name,$time) = $self->get_title();
my $title = '<h1>'.$assess_title.'</h1>'.
'<h2>'.$name.', '.
&Apache::loncommon::aboutmewrapper
($self->{'name'}.'@'.$self->{'domain'},
$self->{'name'},$self->{'domain'});
$title .= '<h3>'.$time.'</h3>';
return $title;
}
sub get_title {
my $self = shift;
my @title = ();
if (($self->{'symb'} eq '_feedback') ||
($self->{'symb'} eq '_evaluation') ||
($self->{'symb'} eq '_discussion') ||
($self->{'symb'} eq '_tutoring')) {
my $assess_title = ucfirst($self->{'symb'});
$assess_title =~ s/^_//;
push(@title,$assess_title);
} else {
push(@title,&Apache::lonnet::gettitle($self->{'symb'}));
}
# Look up the users identifying information
# Get the users information
my %userenv = &Apache::loncoursedata::GetUserName($self->{'name'},
$self->{'domain'});
my $name =
join(' ',@userenv{'firstname','middlename','lastname','generation'});
$name =~ s/\s+$//;
push (@title,$name);
push (@title,scalar(localtime(time)));
return @title;
}
sub parent_link {
my $self = shift;
my $link .= '<p><a href="/adm/studentcalc?'.
'sname='.$self->{'name'}.
'&sdomain='.$self->{'domain'}.'">'.
'Student level sheet</a></p>'."\n";
return $link;
}
sub outsheet_html {
my $self = shift;
my ($r) = @_;
###################################
# Determine table structure
###################################
my $importcolor = '#FFFFFF';
my $exportcolor = '#FFFFAA';
my $num_uneditable = 1;
my $num_left = 52-$num_uneditable;
my $tableheader =<<"END";
<table border="2">
<tr>
<th colspan="2" rowspan="2"><font size="+2">Assessment</font></th>
<td bgcolor="$importcolor" colspan="$num_uneditable"> </td>
<td colspan="$num_left">
<b><font size="+1">Calculations</font></b></td>
</tr><tr>
END
my $label_num = 0;
foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
if ($label_num<$num_uneditable) {
$tableheader .= '<td bgcolor="'.$importcolor.'">';
} else {
$tableheader .= '<td>';
}
$tableheader .= "<b><font size=+1>$_</font></b></td>";
$label_num++;
}
$tableheader.="</tr>\n";
#
$r->print($tableheader);
#
# Print out template row
$r->print('<tr><td>Template</td><td> </td>'.
$self->html_template_row($num_uneditable,$importcolor).
"</tr>\n");
#
# Print out summary/export row
$r->print('<tr><td>Export</td><td>0</td>'.
$self->html_export_row($exportcolor)."</tr>\n");
#
# Prepare to output rows
$tableheader =<<"END";
<table border="2">
<tr><th>row</th><th>Item</th>
END
foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
if ($label_num<$num_uneditable) {
$tableheader.='<th bgcolor="'.$importcolor.'">';
} else {
$tableheader.='<th>';
}
$tableheader.="<b><font size=+1>$_</font></b></th>";
}
#
my $num_output = 0;
foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
if ($num_output++ % 50 == 0) {
$r->print("</table>\n".$tableheader);
}
$r->print('<tr><td>'.$rownum.'</td>'.
$self->assess_html_row($rownum,$importcolor)."</tr>\n");
}
$r->print("</table>\n");
return;
}
sub assess_html_row {
my $self = shift();
my ($row,$importcolor) = @_;
my $parameter_name = $self->{'formulas'}->{'A'.$row};
my @rowdata = $self->get_row($row);
my $num_cols_output = 0;
my $row_html;
if (exists($nice_parameter_name{$parameter_name})) {
my $name = $nice_parameter_name{$parameter_name};
$name =~ s/ /\ /g;
$row_html .= '<td>'.$name.'<br />'.$parameter_name.'</td>';
} else {
$row_html .= '<td>'.$parameter_name.'</td>';
}
foreach my $cell (@rowdata) {
if ($num_cols_output < 1) {
$row_html .= '<td bgcolor="'.$importcolor.'">';
$row_html .= &Apache::Spreadsheet::html_uneditable_cell($cell,
'#FFDDDD');
} else {
$row_html .= '<td bgcolor="#EOFFDD">';
$row_html .= &Apache::Spreadsheet::html_editable_cell($cell,
'#E0FFDD',1);
}
$row_html .= '</td>';
$num_cols_output++;
}
return $row_html;
}
sub csv_rows {
# writes the meat of the spreadsheet to an excel worksheet. Called
# by Spreadsheet::outsheet_excel;
my $self = shift;
my ($filehandle) = @_;
#
# Write a header row
$self->csv_output_row($filehandle,undef,
('Parameter','Description','Value'));
#
# Write each row
foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
my $description = '';
if (exists($nice_parameter_name{$parameter_name})) {
$description = $nice_parameter_name{$parameter_name};
}
$self->csv_output_row($filehandle,$rownum,
$parameter_name,$description);
}
return;
}
sub excel_rows {
# writes the meat of the spreadsheet to an excel worksheet. Called
# by Spreadsheet::outsheet_excel;
my $self = shift;
my ($worksheet,$cols_output,$rows_output) = @_;
#
# Write a header row
$cols_output = 0;
foreach my $value ('Parameter','Description','Value') {
$worksheet->write($rows_output,$cols_output++,$value);
}
$rows_output++;
#
# Write each row
foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
my $description = '';
if (exists($nice_parameter_name{$parameter_name})) {
$description = $nice_parameter_name{$parameter_name};
}
$self->excel_output_row($worksheet,$rownum,$rows_output++,
$parameter_name,$description);
}
return;
}
##
## Routines to support assesscalc::compute
##
sub get_parm_names {
my $self = shift;
my @Mandatory_parameters = @_;
my %parameters_and_names;
#
my ($symap,$syid,$srcf)=split(/___/,$self->{'symb'});
my @Metadata = split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
foreach my $parm (@Mandatory_parameters,@Metadata) {
next if ($parm !~ /^(resource\.|stores|parameter)_/);
my $cleaned_name = $parm;
$cleaned_name =~ s/^resource\./stores_/;
$cleaned_name =~ s/\./_/g;
my $display = &Apache::lonnet::metadata($srcf,
$cleaned_name.'.display');
if (! $display) {
$display .= &Apache::lonnet::metadata($srcf,$cleaned_name.'.name');
}
$parameters_and_names{$cleaned_name}=$display;
}
return (%parameters_and_names);
}
sub get_parameter_values {
my $self = shift();
my @Parameters;
my ($parameters) = @_;
if (!ref($parameters)) {
@Parameters = @_;
} elsif (ref($parameters) eq 'ARRAY') {
@Parameters = @$parameters;
} elsif (ref($parameters) eq 'HASH') {
@Parameters = keys(%$parameters);
}
#
my %parameters;
#
my $filename = $self->{'coursefilename'}.'_parms.db';
if (tie(%parmhash,'GDBM_File',
$self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
foreach my $parmname (@Parameters) {
my $value = $self->parmval($parmname);
$parameters{$parmname} =$value;
}
untie(%parmhash);
} else {
$self->logthis('unable to tie '.$filename);
}
return %parameters;
}
sub deal_with_export_row {
my $self = shift();
my @exportarray = @_;
$Exportrows{$self->{'symb'}}->{'time'} = time;
$Exportrows{$self->{'symb'}}->{$self->{'filename'}} = \@exportarray;
#
# Save the export data
$self->save_export_data();
return;
}
sub compute {
my $self = shift;
my ($r) = @_;
my $connection = $r->connection();
if ($connection->aborted()) { $self->cleanup(); return; }
# $self->logthis('computing');
$self->initialize_safe_space();
#########################################
#########################################
### ###
### Retrieve the problem parameters ###
### ###
#########################################
#########################################
my @Mandatory_parameters = ("stores_0_solved",
"stores_0_awarddetail",
"stores_0_awarded",
"timestamp",
"stores_0_tries",
"stores_0_award");
#
# Definitions
undef(%nice_parameter_name);
my %parameters; # holds underscored parameters by name
#
# Get the metadata fields and determine their proper names
my %nice_parm_names = $self->get_parm_names(@Mandatory_parameters);
while (my($cleaned_name,$display) = each(%nice_parm_names)) {
$parameters{$cleaned_name}++;
$nice_parameter_name{$cleaned_name} = $display;
}
#
# Get the values of the metadata fields
if ($connection->aborted()) { $self->cleanup(); return; }
$self->ensure_current_parameter_caches();
if ($connection->aborted()) { $self->cleanup(); return; }
%parameters = $self->get_parameter_values(keys(%parameters));
if ($connection->aborted()) { $self->cleanup(); return; }
#
# Clean out unnecessary parameters
foreach (keys(%parameters)) {
delete($parameters{$_}) if (! /(resource\.|stores_|parameter_)/);
}
#
# Get the students performance data
my %student_parameters =
&Apache::loncoursedata::get_current_state($self->{'name'},
$self->{'domain'},
$self->{'symb'},
$self->{'cid'});
while (my ($parm,$value) = each(%student_parameters)) {
$parm =~ s/^resource\./stores_/;
$parm =~ s/\./_/g;
$parameters{$parm} = $value;
}
#
# Set up the formulas and parameter values
my %f=$self->formulas();
my %c;
#
# Check for blackout requirements
if ((!exists($ENV{'request.role.adv'}) || !$ENV{'request.role.adv'})) {
while (my ($parm,$value) = each(%parameters)) {
last if ($self->blackout());
next if ($parm !~ /^(parameter_.*)_problemstatus$/);
if ($parameters{$1.'_answerdate'} eq '' ||
$parameters{$1.'_answerdate'} < time) {
next;
}
if (lc($value) eq 'no') {
# We must blackout this sheet
$self->blackout(1);
}
}
}
if ($connection->aborted()) { $self->cleanup(); return; }
#
# Move the parameters into the spreadsheet
if ($connection->aborted()) { $self->cleanup(); return; }
while (my ($parm,$value) = each(%parameters)) {
my $cell = 'A'.$self->get_row_number_from_key($parm);
$f{$cell} = $parm;
$value = '"'.$value.'"' if ($value =~/[^0-9.]/);
$c{$parm} = $value;
}
$self->formulas(\%f);
$self->constants(\%c);
if ($connection->aborted()) { $self->cleanup(); return; }
$self->calcsheet();
#
# Store export row in cache
my @exportarray = $self->exportrow();
$self->deal_with_export_row(@exportarray);
$self->save() if ($self->need_to_save());
if ($connection->aborted()) { $self->cleanup(); return; }
return;
}
##
## sett overrides Spreadsheet::sett
##
sub sett {
my $self = shift;
my %t=();
#
# Deal with the template row by copying the template formulas into each
# row.
foreach my $col ($self->template_cells()) {
next if ($col=~/^A/);
foreach my $row ($self->rows()) {
# Get the name of this cell
my $cell=$col.$row;
# Grab the template declaration
$t{$cell}=$self->formula('template_'.$col);
# Replace '#' with the row number
$t{$cell}=~s/\#/$row/g;
# Replace '....' with ','
$t{$cell}=~s/\.\.+/\,/g;
# Replace 'A0' with the value from 'A0'
$t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
# Replace parameters
$t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
}
}
#
# Deal with the cells which have formulas
while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
next if ($cell =~ /template_/);
if ($cell =~ /^A/ && $cell ne 'A0') {
if ($formula !~ /^\!/) {
$t{$cell}=$self->{'constants'}->{$formula};
}
} else {
$t{$cell}=$formula;
$t{$cell}=~s/\.\.+/\,/g;
$t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
$t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
}
}
# Put %t into the safe space
%{$self->{'safe'}->varglob('t')}=%t;
}
########################################################
########################################################
=pod
=item &load_cached_export_rows()
Retrieves and parsers the export rows of the assessment spreadsheets.
These rows are saved in the students directory in the format:
sname:sdom:assesscalc:symb.time => time
sname:sdom:assesscalc:symb => filename___=___Adata___;___Bdata___;___ ...
=cut
########################################################
########################################################
sub load_cached_export_rows {
undef(%Exportrows);
my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
$ENV{'request.course.id'},
$current_domain,$current_name,undef);
if ($tmp[0]!~/^error/) {
my %tmp = @tmp;
my $default_filename = $ENV{'course.'.$ENV{'request.course.id'}.
'.spreadsheet_default_assesscalc'};
# We only got one key, so we will access it directly.
while (my ($key,$sheetdata) = each(%tmp)) {
my ($sname,$sdom,$sheettype,$symb) = split(':',$key);
if ($symb =~ /\.time$/) {
$symb =~ s/\.time$//;
$Exportrows{$symb}->{'time'} = $sheetdata;
} else {
$sheetdata =~ s/^(.*)___=___//;
my $filename = $1;
$filename = $default_filename if (! defined($filename));
my @Data = split('___;___',$sheetdata);
$Exportrows{$symb}->{$filename} = \@Data;
}
}
}
}
#############################################
#############################################
=pod
=item &export_data
Returns the export data associated with the spreadsheet. Computes the
spreadsheet only if necessary.
=cut
#############################################
#############################################
sub export_data {
my $self = shift;
my ($r) = @_;
my $connection = $r->connection();
my $symb = $self->{'symb'};
if (! exists($ENV{'request.role.adv'}) || ! $ENV{'request.role.adv'} ||
! exists($Exportrows{$symb}) || ! defined($Exportrows{$symb}) ||
! $self->check_expiration_time($Exportrows{$symb}->{'time'}) ||
! exists($Exportrows{$symb}->{$self->{'filename'}}) ||
! defined($Exportrows{$symb}->{$self->{'filename'}}) ||
! ref($Exportrows{$symb}->{$self->{'filename'}})
) {
$self->compute($r);
}
if ($connection->aborted()) { $self->cleanup(); return; }
my @Data = @{$Exportrows{$symb}->{$self->{'filename'}}};
if ($Data[0] =~ /^(.*)___=___/) {
$self->{'sheetname'} = $1;
$Data[0] =~ s/^(.*)___=___//;
}
for (my $i=0;$i<$#Data;$i++) {
$Data[$i]="'".$Data[$i]."'" if ($Data[$i]=~/\D/ && defined($Data[$i]));
}
return @Data;
}
#############################################
#############################################
=pod
=item &save_export_data()
Writes the export data for this spreadsheet to the students cache.
=cut
#############################################
#############################################
sub save_export_data {
my $self = shift;
return if ($self->temporary());
my $student = $self->{'name'}.':'.$self->{'domain'};
my $symb = $self->{'symb'};
if (! exists($Exportrows{$symb}) ||
! exists($Exportrows{$symb}->{$self->{'filename'}})) {
return;
}
my $key = join(':',($self->{'name'},$self->{'domain'},'assesscalc',$symb));
my $timekey = $key.'.time';
my $newstore= join('___;___',@{$Exportrows{$symb}->{$self->{'filename'}}});
$newstore = $self->{'filename'}.'___=___'.$newstore;
my $result = &Apache::lonnet::put
('nohist_calculatedsheets_'.$ENV{'request.course.id'},
{ $key => $newstore,
$timekey => $Exportrows{$symb}->{'time'} },
$self->{'domain'},
$self->{'name'});
return;
}
1;
__END__
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