# The LearningOnline Network with CAPA
# (Publication Handler
#
# $Id: lonstudentassessment.pm,v 1.2 2002/07/25 21:23:51 stredwic 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/
#
# (Navigate problems for statistical reports
# YEAR=2001
# 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
# YEAR=2002
# 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
# 5/12,5/14,5/15,5/19,5/26,7/16 Behrouz Minaei
#
###
package Apache::lonstudentassessment;
use strict;
use Apache::lonhtmlcommon;
use Apache::loncoursedata;
use GDBM_File;
sub BuildStudentAssessmentPage {
my ($cacheDB,$students,$courseID,$formName,$headings,$spacing,
$studentInformation,$r,$c)=@_;
my %cache;
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
$r->print('Unable to tie database.');
return;
}
my $selectedName = &FindSelectedStudent(\%cache,
$cache{'StudentAssessmentStudent'},
$students);
$r->print(&CreateInterface(\%cache, $selectedName, $students, $formName));
my $Ptr = '';
if($selectedName eq 'No Student Selected') {
$Ptr .= '
'."\n";
return $Str;
}
=pod
=item &FormatStudentData()
First, FormatStudentInformation is called and prefixes the course information.
This function produces a formatted string of the student's course information.
Each column of data represents all the problems for a given sequence. For
valid grade data, a link is created for that problem to a submission record
for that problem.
=over 4
Input: $name, $studentInformation, $ChartDB
$name: The name and domain of the current student in name:domain format
$studentInformation: A pointer to an array holding the names used to
remove data from the hash. They represent
the name of the data to be removed.
$ChartDB: The name of the cached data database which will be tied to that
database.
Output: $Str
$Str: Formatted string that is an entire row of the chart. It is a
concatenation of student information and student course information.
=back
=cut
sub StudentReport {
my ($cache,$name,$spacing,$showSequences)=@_;
my ($username,$domain)=split(':',$name);
my $Str = '';
if($cache->{$name.':error'} =~ /course/) {
$Str .= 'No course data for student ';
$Str .= ''.$username.'. ';
return $Str;
}
my $Version;
my $problemsCorrect = 0;
my $totalProblems = 0;
my $problemsSolved = 0;
my $numberOfParts = 0;
# foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
foreach my $sequence (@$showSequences) {
my $characterCount=0;
foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
my $problem = $cache->{$problemID.':problem'};
my $LatestVersion = $cache->{$name.':version:'.$problem};
# Output dashes for all the parts of this problem if there
# is no version information about the current problem.
if(!$LatestVersion) {
foreach my $part (split(/\:/,$cache->{$sequence.':'.
$problemID.
':parts'})) {
$Str .= ' ';
$totalProblems++;
$characterCount++;
}
next;
}
my %partData=undef;
# Initialize part data, display skips correctly
# Skip refers to when a student made no submissions on that
# part/problem.
foreach my $part (split(/\:/,$cache->{$sequence.':'.
$problemID.
':parts'})) {
$partData{$part.':tries'}=0;
$partData{$part.':code'}=' ';
}
# Looping through all the versions of each part, starting with the
# oldest version. Basically, it gets the most recent
# set of grade data for each part.
for(my $Version=1; $Version<=$LatestVersion; $Version++) {
foreach my $part (split(/\:/,$cache->{$sequence.':'.
$problemID.
':parts'})) {
if(!defined($cache->{$name.":$Version:$problem".
":resource.$part.solved"})) {
# No grade for this submission, so skip
next;
}
my $tries=0;
my $code=' ';
$tries = $cache->{$name.':'.$Version.':'.$problem.
':resource.'.$part.'.tries'};
$partData{$part.':tries'}=($tries) ? $tries : 0;
my $val = $cache->{$name.':'.$Version.':'.$problem.
':resource.'.$part.'.solved'};
if ($val eq 'correct_by_student') {$code = '*';}
elsif ($val eq 'correct_by_override') {$code = '+';}
elsif ($val eq 'incorrect_attempted') {$code = '.';}
elsif ($val eq 'incorrect_by_override'){$code = '-';}
elsif ($val eq 'excused') {$code = 'x';}
elsif ($val eq 'ungraded_attempted') {$code = '#';}
else {$code = ' ';}
$partData{$part.':code'}=$code;
}
}
# All grades (except for versionless parts) are displayed as links
# to their submission record. Loop through all the parts for the
# current problem in the correct order and prepare the output links
$Str .= '';
foreach(split(/\:/,$cache->{$sequence.':'.$problemID.
':parts'})) {
if($partData{$_.':code'} eq '*') {
$problemsCorrect++;
if (($partData{$_.':tries'}<10) &&
($partData{$_.':tries'} ne '')) {
$partData{$_.':code'}=$partData{$_.':tries'};
}
} elsif($partData{$_.':code'} eq '+') {
$problemsCorrect++;
}
$Str .= $partData{$_.':code'};
$characterCount++;
if($partData{$_.':code'} ne 'x') {
$totalProblems++;
}
}
$Str.='';
}
# Output the number of correct answers for the current sequence.
# This part takes up 6 character slots, but is formated right
# justified.
my $spacesNeeded=$cache->{$sequence.':columnWidth'}-$characterCount;
$spacesNeeded -= 3;
$Str .= (' 'x$spacesNeeded);
my $outputProblemsCorrect = sprintf( "%3d", $problemsCorrect );
$Str .= ''.$outputProblemsCorrect.'';
$problemsSolved += $problemsCorrect;
$problemsCorrect=0;
$Str .= $spacing;
}
# Output the total correct problems over the total number of problems.
# I don't like this type of formatting, but it is a solution. Need
# a way to dynamically determine the space requirements.
my $outputProblemsSolved = sprintf( "%4d", $problemsSolved );
my $outputTotalProblems = sprintf( "%4d", $totalProblems );
$Str .= ''.$outputProblemsSolved.
' / '.$outputTotalProblems.'';
return $Str;
}
=pod
=item &CreateLegend()
This function returns a formatted string containing the legend for the
chart. The legend describes the symbols used to represent grades for
problems.
=cut
sub CreateLegend {
my $Str = "
".
"1..9: correct by student in 1..9 tries\n".
" *: correct by student in more than 9 tries\n".
" +: correct by override\n".
" -: incorrect by override\n".
" .: incorrect attempted\n".
" #: ungraded attempted\n".
" : not attempted\n".
" x: excused".
"
";
return $Str;
}
=pod
=item &CreateColumnSelectionBox()
If there are columns not being displayed then this selection box is created
with a list of those columns. When selections are made and the page
refreshed, the columns will be removed from this box and the column is
put back in the chart. If there is no columns to select, no row is added
to the interface table.
=over 4
Input: $CacheData, $headings
$CacheData: A pointer to a hash tied to the cached data
$headings: An array of the names of the columns for the student information.
They are used for displaying which columns are missing.
Output: $notThere
$notThere: The string contains one row of a table. The first column has the
name of the selection box. The second contains the selection box
which has a size of four.
=back
=cut
sub CreateColumnSelectionBox {
my ($CacheData,$headings)=@_;
my $missing=0;
my $notThere='
Select column to view:';
my $name;
$notThere .= '
';
$notThere .= '';
} else {
$notThere='
';
}
return $notThere.'
';
}
=pod
=item &CreateColumnSelectors()
This function generates the checkboxes above the column headings. The
column will be removed if the checkbox is unchecked.
=over 4
Input: $CacheData, $headings
$CacheData: A pointer to a hash tied to the cached data
$headings: An array of the names of the columns for the student
information. They are used to know what are the student information columns
Output: $present
$present: The string contains the first row of a table. Each column contains
a checkbox which is left justified. Currently left justification is used
for consistency of location over the column in which it presides.
=back
=cut
sub CreateColumnSelectors {
my ($headings)=@_;
=pod
my $found=0;
my ($name, $length, $position);
my $present = '