devise_invitable : allowing non-devise models to set and send invitations

I'm configuring devise_invitable and I need to have a model that is not a devise model set and send invitations.

The readme has instructions for setting this 开发者_JS百科by devise models(e.g. only devise Admin model), but not an external non-devise model(e.g. I have an specific Inviter user but it isn't a devise model).

I'm curious if anyone has done this or what advice you would offer.

Works through setting this is the Application controller:

protected
  def authenticate_inviter!
  end

Not entirely sure of the security ramifications in depth, but it works for now.