Menu
I have a ruby module that is supposed to wrap up quite a few classes
module A class First #somemethods end class Second #somemethods end class Third #somemethods end end What i would like to do in rails is to break up these classes into several files what might be the best practice to split this huge module into several relevant files?
396
Mixins in Ruby allows modules to access instance methods of another one using include method. Mixins provides a controlled way of adding functionality to classes. The code in the mixin starts to interact with code in the class. In Ruby, a code wrapped up in a module is called mixins that a class can include or extend.
The Ruby class Class inherits from Module and adds things like instantiation, properties, etc – all things you would normally think a class would have. Because Module is literally an ancestor of Class , this means Modules can be treated like classes in some ways. As mentioned, you can find Module in the array Class.
To put a class in a separate file, just define the class as usual and then in the file where you wish to use the class, simply put require 'name_of_file_with_class' at the top.
What is the difference between a class and a module? Modules are collections of methods and constants. They cannot generate instances. Classes may generate instances (objects), and have per-instance state (instance variables).
One approach would be to come up with directory structure like this:
(root dir) ├── a │ ├── first.rb │ ├── second.rb │ └── third.rb └── a.rb Files contents:
# a.rb require_relative './a/first.rb' require_relative './a/second.rb' require_relative './a/third.rb' module A end # a/first.rb module A class First # ... end end # a/second.rb module A class Second # ... end end # a/third.rb module A class Third # ... end end If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
