private bool UserAlreadyExists(User newUser, Users users)
{
return users
.Items
.Any(
user =>
user.UserName.Equals(
newUser.UserName,
StringComparison.OrdinalIgnoreCase
)
);
}
public bool TrySave(User newUser)
{
lock (locker)
{
using (var session = this.database.OpenSession())
{
var users = session.Load<Users>("users") ?? new Users();
if (UserAlreadyExists(newUser, users))
{
return false;
}
users.Items.Add(newUser);
session.SaveChanges();
}
}
return true;
}