Organising Rails source files

If i want to move /lib/foo_bar.rb to /lib/tidy/foo_bar.rb or even /lib/tidy/somestuff/foo_bar.rb

must i declare FooBar to be module Tidy or module Tidy::Som开发者_运维技巧estuff

in other words must the modules match the directory structure?

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Yes, if you don't want to specify the load path. You can add lib/tidy to the LOAD_PATH and then Rails will find it, but it's easier to just stick with the conventions