Crafting Rails 4 Applications, 2nd Edition

Revisiting Rails::Application

In previous chapters, we discussed Rails::Engine and how it exhibits several behaviors similar to a Rails application. When we look at the Rails source code, we find the following:

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The Rails::Application class inherits from Rails::Engine! This means an application can do everything an engine does, plus has some specific behavior:

• An application is responsible for all bootstrapping (for example, loading Active Support, setting up load paths, and configuring the logger).

• An application has its own router and middleware stack (as we discussed in ​Middleware Stacks​).

• An application should load and initialize ...