What is the basic concept of rails?

Question

I can not find the answer to this question,
I understand somewhat what he is doing with the implementation, but I did not feel it.

Answer 1

This article explains the architecture of the acts_as plugin using the acts_as_state_machine plugin as an example.

Answer 2

Yehuda Katz has a nice explanation of the act_as plugin template and why it is usually implemented in an overly complicated way.