<?php

class Category
{
    public static function all(): array
    {
        return Database::connection()
            ->query('SELECT id, name, color FROM categories ORDER BY name')
            ->fetchAll();
    }

    public static function exists(int $id): bool
    {
        $statement = Database::connection()->prepare('SELECT id FROM categories WHERE id = :id LIMIT 1');
        $statement->execute(['id' => $id]);

        return (bool) $statement->fetch();
    }
}