validation on subdomain unique

rubyonrails-talk
1

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.

I tried

     validates_uniqueness_of :account_name, :on => :create, :if => :check_unique, :message => "Name must be unique"

And returning false does nothing.

Without going into javascript, how can I validate this in the user record?

I realize this my be a little complicated for this list (and short), but though I'd give it a try.

2

No suggestions to this complicated question, so I kept digging.

added before_validation filter on create that Checks if account_name is not blank and unique. If not unique, it sets it to blank. A validates_presence_of validation then catches the error and uses a custom error message.