How to detect a new database?

[Roman Gaufman]

I have an app that switches databases based on subdomain like so:

Rails.logger.debug "Switching Database to #{database_name}"

Mongoid.override_database( "#{portal}_#{env}")

This works great, except I need to detect if the database already exists or not. Is there any way to check if the database I am switching to exists or not?

Thank you for your time,

Roman