Using Devise on an application with basecamp like subdomains.
You can only register(sign_up) if the account(subdomain) you are
creating is unique.
You can only register(sign_up) from the root domain.
account_name is attr_accessor :account_name in user record and is
created when the user is created (before_create)
Can't use validates_uniqueness_of :subdomain_name because it is not
part of the record. Creates winny_nil error
I can test it in my create_account method and return false if it is
not unique, but no feedback.
validates_uniqueness_of :account_name, :on => :create, :if
=> :check_unique, :message => "Name must be unique"
And returning false does nothing.
I realize this my be a little complicated for this list (and short),
but though I'd give it a try.