undefined method caches_action for Controller, with Rails 4

[praveenram]

I'm using Rails 4.0.0 stable with actionpack-action_caching 1.0.0, a very weird issue when using a rails engine.

I'm pasting the question I'd posted on StackOverflow here.

I've a Rails4 app a mounted rails 4 engine MyEngine with a controller MyController

I've defined multiple actions in the controller for caching as follows,

module MyEngine
   require 'actionpack/action_caching'
   class MyController < ApplicationController #inherits from application controller of app
       [:index, :show].each do |action|
           caches_action action
       end
   end
end

I've also included the gem actionpack-action_caching version 1.0.0 in my gemspec

spec.add_dependency "actionpack-action_caching", "1.0.0"

When I try to hit any route pointing to MyController I get following error:

ActionController::RoutingError - undefined method `caches_action' for MyEngine::MyController:Class:

I'm using development environment so I have also changed the configuration for the environment to enable caching:

config.action_controller.perform_caching = true

I've tried changing a bunch of things like adding this block to engine.rb in to_prepare and initializer block.

ActiveSupport.on_load :action_controller do
    require 'action_controller/action_caching'
end

I've also tried setting config.action_caching = true in engine.rb.

I'm sure I'm missing something very basic, just not able to find out what!

EDIT1

Tried adding caches_action for an action within the application as well. It throws the same error.

To debug I added some print statements inside the gem

On this line require 'action_controller/action_caching', and it prints true when the server starts up.

Thats more baffling!

Link to question: caches_action undefined for controller in rails engine

[pixeltrix]

Have you tried updating the gem to 1.1.1? I think we addressed this issue.

[praveenram]

Awesome thanks. I had issues upgrading to 1.1.1 before due to some rails dependency but now its good :) Thanks!

[jDeppen]

For anyone else seeing this, my problem was having
gem 'actionpack-page_caching'
but not
gem 'actionpack-action_caching'

[agis]

What @jDeppen was the problem for me too.

[denys281]

Hm I have same error.

Generate project with rails new my_api --api

gem 'actionpack-action_caching'

caches_action :index

And got error:

app/controllers/api/v1/traces_controller.rb:10:in class:TracesController': undefined method caches_action' for Api::V1::TracesController:Class (NoMethodError)

UPD Ok, in case you application controller inherited from ActionController::API, just:

include ActionController::Caching in application_controller.