public void UpdateUser(User user)
{
var existUser = _dbContext.Users.FirstOrDefault(x => x.UserId == user.UserId);
if (user == null)
{
throw new ArgumentNullException("user", "user is null");
}
if (existUser == null)
{
throw new InvalidDataException("User doesn't exist in current database");
}
if (existUser != user)
{
CopyUsersProperties(user, existUser);
}
_dbContext.Entry(existUser).State = EntityState.Modified;
}
