after_save回调与虚拟属性Rails 3

Question

我不知道这是否可行所以我想我会问。

1. Give a model some virtual attributes
2. Assign values to the model and the virtual attributes
3. Save the model 
4. Use a callback after_save to create a different object with the virtual attributes.

可以在Rails 3中完成吗？

Answer 1

只要关联与您无关，请使用：

http://apidock.com/rails/ActiveRecord/Base/clone