ActiveRecord::Base exists? expects argument

Tiny but annoying bug if you want to have beautiful code:

The Bug By now ActiveRecord::Base method "exists?" expects an argument.

Example: to check if at least one entry exists in table 'persons':

Person.exists?  

But this doesn't work, as an argument is expected. Even more common scenario happens with named scope:

Person.rails_developer.exists?  

The Workaround As a workaround passing an empty hash works, but looks ugly:

Person.exists?({})  

The Fix So my proposal to get back to beautiful code: Add empty hash as default parameter to 'extists?' method:

def exists?(id_or_conditions = {} )
  ...
end

Cheers Tobi