Sometimes you want to have an acronym in your codebase that you'd like to reference using all capital letters (i.e. `CMS` instead of `Cms`).

Unfortunately, Ruby will look for a class named `Cms` in a file named `cms.rb` and will tripped up if you try to name the class `CMS`.

Enter [`ActiveSupport::Inflector`].

## Letting Rails know about the acronyms in your codebase

Adding an acronym involves opening your `config/initializers/inflections.rb` [initializer] and using the `acronym` method.

``` ruby
ActiveSupport::Inflector.inflections(:en) do |inflect|
  inflect.acronym "CMS"
end
```

After restarting your server so that it picks up the new inflection, Rails will recognize `CMS` in `app/models/cms.rb` and you can use it when namespacing models as well (`CMS::Article`).

[`ActiveSupport::Inflector`]: https://api.rubyonrails.org/classes/ActiveSupport/Inflector/Inflections.html#method-i-acronym
[initializer]: https://guides.rubyonrails.org/configuring.html#initializers

Acronyms are strange to implement in Ruby, but are easy to manage in Rails when leveraging ActiveSupport.

How to use acronyms in the classes of your Rails application

Letting Rails know about the acronyms in your codebase

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