allow base controller customization

README.md

@@ -54,12 +54,17 @@ config.action_mailer.delivery_method = :letter_opener_web
 config.action_mailer.delivery_method = ENV['USER'] == 'vagrant' ? :letter_opener_web : :letter_opener
 ```
 
-If you're using `:letter_opener_web` as your delivery method, you can change the location of the letters by adding the
+If you're using `:letter_opener_web` as your delivery method and you want to customize some options then you can add the
 following to an initializer (or in development.rb):
 
 ```ruby
 LetterOpenerWeb.configure do |config|
+  # change the location of the letters
   config.letters_location = Rails.root.join('your', 'new', 'path')
+
+  # change the base controller (if you want to avoid the execution of filters set on the ApplicationController of your 
+  # application then use LetterOpenerWeb::ApplicationController)
+  config.base_controller = YourNewBaseController
 end
 ```
 

app/controllers/letter_opener_web/letters_controller.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 module LetterOpenerWeb
-  class LettersController < ApplicationController
+  class LettersController < LetterOpenerWeb.config.base_controller
     before_action :check_style, only: [:show]
     before_action :load_letter, only: %i[show attachment destroy]
 

lib/letter_opener_web.rb

@@ -6,11 +6,13 @@
 module LetterOpenerWeb
   class Config
     attr_accessor :letters_location
+    attr_accessor :base_controller
   end
 
   def self.config
     @config ||= Config.new.tap do |conf|
       conf.letters_location = Rails.root.join('tmp', 'letter_opener')
+      conf.base_controller = ApplicationController
     end
   end