Recursively including all model subdirectories

问题

How do you load all directories recursively in the models and lib directories? In application.rb, I have the lines:

config.autoload_paths += Dir[Rails.root.join('app', 'models', '{**}')]
config.autoload_paths += Dir[Rails.root.join('lib', '{**}')]

but they only seem to add one level of model and lib subdirectories.

Thanks

回答1:

this should be helpful

 Dir["#{config.root}/app/models/**/","#{config.root}/lib/**/"]

enjoy! (:

Update:

Excellent question, posting example above i have simply referred to my recent project.

After making some tests, better understanding comes to me and it is great.

The main difference is of course neither in join method of File not config.root / Rails.root

Trailing '/' after '**' makes sense.

First one talks to match only directories when globbing. Second one talks do it recursively.

In your case this one could be also appropriate

Dir[ Rails.root.join('app', 'models', '**/') ]

来源：https://stackoverflow.com/questions/7750769/recursively-including-all-model-subdirectories