gistfile1.txt

/// Inserts a new user.
pub fn create_user<'a>(conn: &PgConnection, name: &'a str, admin: bool)
        -> Result<PgConnection, MyErrorType> {
    use self::schema::users;

    let new_user = NewUser {
        name: name,
        karma: 0,
        admin: admin,
    }; 
    
    Ok(diesel::insert(&new_user).into(users::table).get_result(conn)?)
}

// Elsewhere: impl From<diesel::result::Error> for MyErrorType;