prepare('UPDATE categories SET name = ? WHERE id = ?');
$stmt->execute([$name, $id]);
$message = 'Category updated successfully!';
} else {
// Insert new category
$stmt = $pdo->prepare('INSERT INTO categories (name) VALUES (?)');
$stmt->execute([$name]);
$message = 'Category added successfully!';
}
} catch (PDOException $e) {
if ($e->errorInfo[1] == 1062) { // Duplicate entry
$error = 'Category name already exists.';
} else {
$error = 'Database error: ' . $e->getMessage();
}
}
}
}
// Handle deleting a category
if (isset($_GET['delete'])) {
$id = $_GET['delete'];
try {
$stmt = $pdo->prepare('DELETE FROM categories WHERE id = ?');
$stmt->execute([$id]);
$message = 'Category deleted successfully!';
} catch (PDOException $e) {
$error = 'Error deleting category. It might be in use.';
}
}
// Handle fetching a category for editing
if (isset($_GET['edit'])) {
$id = $_GET['edit'];
$stmt = $pdo->prepare('SELECT * FROM categories WHERE id = ?');
$stmt->execute([$id]);
$edit_category = $stmt->fetch();
}
// Fetch all categories to display
$stmt = $pdo->query('SELECT * FROM categories ORDER BY name');
$categories = $stmt->fetchAll();
?>
Manage Categories