```ruby
class User < ActiveRecord::Base
  serialize :user_attributes

  acts_as_authentic do |c|
    c.validations_scope = :username
    c.validate_password_field = false
    c.require_password_confirmation = false
    c.disable_perishable_token_maintenance = true
  end
end
```

Remove Authlogic code from the User model
user
```ruby
class User < ActiveRecord::Base

end
```
assistant