Add parent_controller config option

[skryukov]

parent_controller

Specifies the base controller class for the internal StaticController used to render static Inertia pages.

By default, InertiaRails creates a StaticController that inherits from ApplicationController. You can use this option to specify a different base controller (for example, to include custom authentication, layout, or before actions).

Default: '::ApplicationController'

Example

Suppose you have a custom base controller:

class MyCustomBaseController < ApplicationController
  before_action :authenticate_user!
end

Configure InertiaRails to use it:

InertiaRails.configure do |config|
  config.parent_controller = 'MyCustomBaseController'
end

Now, the internal StaticController will inherit from MyCustomBaseController, and all static Inertia pages will require authentication.

When to Use

• When you need to add custom before actions, filters, or helpers to static Inertia pages.
• When your application has multiple base controllers and you want to use a specific one for static pages.