There is few similar questions on Stackoverflow about getting of current_user form Rails 3 observers, but basic ideas the same:
1) passing of current_user via
attr_accessor :current_user
in the model we need to observe.
But this unacceptable for me, as, i need to observer 10 models (create, update, delete actions), and i don't want to pass this on each action, for each controller.
2) Storing current user in Thread. Completely unacceptable.
So what is the best practice? And, let's say, i want to get not only current_user in my observer, but also, IP address?
Any ideas?
After investigating for more, i found it's totally useless to use Rails native observers in a such a tasks. Because, if you need to pass something from controllers, in my case it was current_user, this totally ruins observer's beauty.
So my answer to my own question is: still stuck with something like acts_as_audited