Added middleware example

config/environment.rb

@@ -34,11 +34,17 @@
   # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
 
   # Add additional load paths for your own custom dirs
-  # config.load_paths += %W( #{RAILS_ROOT}/extras )
+  # config.load_paths += %W( #{RAILS_ROOT}/lib/middleware )
 
   # Force all environments to use the same logger level
   # (by default production uses :info, the others :debug)
   # config.log_level = :debug
+
+  # Rack Middleware
+  require "#{RAILS_ROOT}/lib/middleware/django_middleware"
+  require "#{RAILS_ROOT}/lib/middleware/no_django_middleware"
+  config.middleware.use NoDjangoMiddleware
+  config.middleware.use DjangoMiddleware
 
   # Make Time.zone default to the specified zone, and make Active Record store time values
   # in the database in UTC, and return them converted to the specified local zone.

lib/middleware/django_middleware.rb

@@ -0,0 +1,14 @@
+class DjangoMiddleware
+  def initialize(app)
+    @app = app
+  end
+
+  def call(env)
+    status, headers, response = @app.call(env)
+    new_response = []
+    response.each do |part|
+      new_response << part.gsub(/Rails/, 'Django')
+    end
+    [status, headers, new_response]
+  end
+end

lib/middleware/no_django_middleware.rb

@@ -0,0 +1,14 @@
+class NoDjangoMiddleware
+  def initialize(app)
+    @app = app
+  end
+
+  def call(env)
+    status, headers, response = @app.call(env)
+    new_response = []
+    response.each do |part|
+      new_response << part.gsub(/Django/, 'Rails')
+    end
+    [status, headers, new_response]
+  end
+end