rails. How to remove (undefine) associations\relations?

Question

ruby

Suppose we declare an association in a class:

class User < Activerecord::Base
has_many :posts
end

How can I remove this association further in runtime? For example, through:

User.class_eval do
...
end

Answer 1

has_many is converted to a set of methods. You can try removing them, but there are quite a few of them. And in general, this is a dirty patching, it is better not to do this.
Explain the context of the task. Perhaps your problem can be solved in a much simpler way.