/// <summary>
/// 在用户数据库中创建一个新的用户实体对象。
/// </summary>
/// <param name="username">新用户的用户名。</param>
/// <returns>新创建的用户的句柄。</returns>
/// <exception cref="ArgumentNullException"/>
/// <exception cref="UsernameAlreadyExistsException"/>
public UserHandle CreateUser(string username)
{
if (username == null)
{
throw new ArgumentNullException(nameof(username));
}
if (IsUserExist(username))
{
throw new UsernameAlreadyExistsException(new UserHandle(username));
}
UserProfileEntity entity = new UserProfileEntity()
{
Username = username,
};
// 将实体数据对象添加到数据库中。
m_factory.WithContext(context =>
{
context.AddUserProfileEntity(entity);
context.SaveChanges();
});
return(new UserHandle(username));
}
