pub async fn list_workers(
    pool: &sqlx::Pool<sqlx::MySql>,
    page: Option<u64>,
    per_page: Option<u64>
) -> Result<Vec<Worker>, sqlx::Error> {
    let page = page.unwrap_or(1);
    let per_page = per_page.unwrap_or(10);
    let offset = (page - 1) * per_page;
    
    // Use a simple query first to test
    let workers = sqlx::query_as::<_, Worker>(
        "SELECT * FROM workers LIMIT ? OFFSET ?"
    )
    .bind(per_page as i64)
    .bind(offset as i64)
    .fetch_all(pool)
    .await?;
    
    Ok(workers)
}

    // ... function definition continues
    // ... function body
}

pub async fn get_worker_by_id(
    pool: &sqlx::Pool<sqlx::MySql>,
    worker_id: i64,
) -> Result<Worker, sqlx::Error> {
    let worker = sqlx::query_as::<_, Worker>(
        "SELECT * FROM workers WHERE id = ?"
    )
    .bind(worker_id)
    .fetch_one(pool)
    .await?;
    
    Ok(worker)
    // ... function body
}