gistfile1.rb

def add_provider(auth_hash)
    unless auth_existing = authorizations.find_by_provider_and_uid(auth_hash["provider"], auth_hash["uid"])
      # No auth exists for this provider. Create one and update keys.
      auth = Authorization.create :user => self, :provider => auth_hash["provider"], :uid => auth_hash["uid"]
      auth.update_access_keys(auth_hash)
    else
      # Auth already exists but we need to update the access_tokens
      auth_existing.update_access_keys(auth_hash)
    end
end