Supporting automatic return from render/redirect/head in Rails

application_controller.rb

# Please don't comment in this gist since I'm not notified by any comments here:
# https://github.com/isaacs/github/issues/21
# This is the discussion to comment on: http://blog.arkency.com/2014/07/4-ways-to-early-return-from-a-rails-controller/

class ApplicationController < ActionController::Base
  # ...

  around_action :catch_halt

  def render(*args)
    super
    throw :halt
  end

  def redirect(*args)
    super
    throw :halt
  end

  def head(*args)
    super
    throw :halt
  end

  private

  def catch_halt
    catch :halt do
      yield
    end
  end
end

sample_controller.rb

class SampleController < ApplicationController
  def my_action
    render body: 'response'
    render body: "double rendering won't happen as this will never be executed"
  end
end

Using it! Man, I wish this was core, it's so much more elegant than other solutions.

I agree it's more elegant and I'd prefer it in the core too, but I'm afraid this could break third-party code that expect render/redirect/head not to return...

👍