#!/usr/bin/perl
# Copyright 2001-2023 Leslie Richardson
# This file is part of Open Admin for Schools.
# Open Admin for Schools 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.
my %lex = ('Main' => 'Main',
'Error' => 'Error',
'Timetable' => 'Timetable',
'Grade' => 'Grade',
'Term' => 'Term',
'Terms' => 'Terms',
'Continue' => 'Continue',
);
use DBI;
use CGI;
my $self = "ttMissing.pl";
eval require "../../etc/admin.conf";
if ( $@ ) {
print $lex{Error}. " $@ \n";
die $lex{Error}. " $@\n";
}
my $q = new CGI;
print $q->header( -charset, $charset );
my %arr = $q->Vars;
my $dsn = "DBI:$dbtype:dbname=$dbase";
my $dbh = DBI->connect($dsn,$user,$password);
# print page header.
my $title = "Find Missing Timetables for Enrolled Courses"; # based on course enrollment.
print qq{$doctype\n$title\n};
print qq{\n};
print qq{$chartype\n\n};
print qq{[ $lex{Main} |\n};
print qq{$lex{Timetable} ]\n};
print qq{
$title
\n};
# Starting Page
if ( not $arr{page} ){
showStartPage();
} elsif ( $arr{page} == 1 ) {
delete $arr{page};
findMissing();
}
#--------------
sub findMissing {
#--------------
# foreach my $key ( sort keys %arr ) { print "K:$key V:$arr{$key} \n"; }
# Passed: grades, terms to check
# Check for missing values
if ( not $arr{grades} or not $arr{terms} ) {
print qq{
Error: Missing Grades or Terms
\n};
print qq{\n};
exit;
}
my @grades = split(/\s+/, $arr{grades} );
my @terms = split(/\s+/, $arr{terms} );
print qq{
Grades - @grades Terms - @terms
\n};
# find courses in each grade and their terms in preparation
my %coursegrade; # grade,term,subjsec;
my $sth = $dbh->prepare("select description, subjsec,startrptperiod,endrptperiod from subject
where grade = ?");
foreach my $grade ( @grades ) {
$sth->execute($grade);
if ( $DBI::errstr ) { print $DBI::errstr; die $DBI::errstr; }
while ( my ( $description, $subjsec, $startterm,$endterm ) = $sth->fetchrow ){
foreach my $trm ( $startterm..$endterm ) {
$coursegrade{$grade}{$trm}{$subjsec} = $description;
}
}
}
# we now have course master information about all grades of interest.
# Get enrolled student count from grade/terms of interest.
my $sth = $dbh->prepare("select count(*) from eval where subjcode = ? and term = ?");
my $sth1 = $dbh->prepare("select count(*) from schedat
where subjsec = ? and term = ?"); # not worried about day or period
print qq{
\n};
print qq{
Course
Code/Section
Term
Grade
Enrol
\n};
print qq{
};
print qq{Enrolled Courses without a Timetable
\n};
# Loop through all terms; we already have the grade courses saved.
my $first = 1;
foreach my $term ( @terms ) {
foreach my $grade ( @grades ) {
foreach my $subjsec ( keys %{ $coursegrade{$grade}{$term} }) {
# Get courses enrolled this term.
$sth->execute($subjsec,$term);
if ( $DBI::errstr ) { print $DBI::errstr; die $DBI::errstr; }
my $count = $sth->fetchrow;
# if count, we have enrollments in this course in this term.
# check if we have a timetable set.
if ( $count) { # check for a timetable.
$sth1->execute($subjsec,$term);
if ( $DBI::errstr ) { print $DBI::errstr; die $DBI::errstr; }
my $tcount = $sth1->fetchrow; # timetable count.
if ( not $tcount ) { # no timetable
print qq{
$coursegrade{$grade}{$term}{$subjsec}
\n};
print qq{
$subjsec
$term
$grade
};
print qq{
$count
\n};
$first = 0;
}
}
} # end subjsec
} # end grade
} # end term
if ( $first ) { # no missing timetables
print qq{