setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
// Fetch data for Discipline
$discipline_stmt = $pdo->query("SELECT discipline, COUNT(*) as count FROM grievances GROUP BY discipline");
$discipline_data = $discipline_stmt->fetchAll(PDO::FETCH_ASSOC);
// Fetch data for Subject
$subject_stmt = $pdo->query("SELECT subject, COUNT(*) as count FROM grievances GROUP BY subject");
$subject_data = $subject_stmt->fetchAll(PDO::FETCH_ASSOC);
// Fetch data for Grievances per Quarter
$quarter_stmt = $pdo->query("SELECT QUARTER(last_updated) as quarter, COUNT(*) as count FROM grievances GROUP BY QUARTER(last_updated)");
$quarter_data = $quarter_stmt->fetchAll(PDO::FETCH_ASSOC);
} catch (PDOException $e) {
echo 'Database error: ' . $e->getMessage() . '
';
exit;
}
$discipline_labels = [];
$discipline_values = [];
foreach ($discipline_data as $data) {
$discipline_labels[] = $data['discipline'];
$discipline_values[] = $data['count'];
}
$subject_labels = [];
$subject_values = [];
foreach ($subject_data as $data) {
$subject_labels[] = $data['subject'];
$subject_values[] = $data['count'];
}
$quarter_labels = [];
$quarter_values = [];
foreach ($quarter_data as $data) {
$quarter_labels[] = 'Q' . $data['quarter'];
$quarter_values[] = $data['count'];
}
?>
Grievance Statistics
Discipline
Subject
Grievances per Quarter