As I'm reading Ruby on Rails now, I want to ask about ApplicationController, that we find in application_controller.rb like the following:
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
is that a big Class in Rails ? if yes, how can I get a look ? just for curiosity.
Thanks for your help.