Override precedence

rubyonrails-talk
1

Hi,

I am having trouble overriding methods in a plugin. I am trying to apply a patch to attachment_fu by overriding a method in on of the attachment_fu modules from with a file in my libs folder.

I am using the suggestions from Emmanuel's Blog

If I paste the change directly into the atachment fu module the fix works. However if I try to make the fix from within my attachment_fu_patch.rb it doesn't work and ruby appears to be still calling the original method.

This makes me ask the question: If you re-open modules and /or classes multiple times and override methods, how does ruby know which one is the "latest". ie how can I ensure that my override is the one that is called?

Cheers George

2

Chronological order of file loading, pure and simple. if files overide_a and overide_b both define the same method on the same class, then if ruby loads a first then the final method definition will be the one in b (and vice versa). Ruby isn't doing any clever tracking of anything - stuff just gets overwritten

Fred

3

Thanks for the reply Fred. But that just creates a new question.. How do I ensure that my patch file is loaded after the plugin?

G.

4

Thanks for the reply Fred. But that just creates a new question.. How do I ensure that my patch file is loaded after the plugin?

stuff in config/initializers should be loaded after plugins.

Fred