Inserting Controller Actions Between Actions in Rails - Best Practices

Question

What are the best practices (or common practices) when it comes to adding extra steps to a process in Rails?

For example, I work with the Spree e-commerce Rails platform , and I would like to add a multi-stage form that people should fill out when trying to "Add to Cart" Product.

Currently, the implementation of adding a product to the basket is mainly:

ProductsController#show -> OrdersController#edit

This adds the product to the basket and leaves you in the basket.

So, I’m interested in order to change the base code in spree as much as possible, how to do this, so that the process looks more like this:

ProductsController#show -> SurveysController#show -> (survey stuff...) -> OrdersController#edit

What I'm going to do is:

• change "products / show.html.erb" to go to survey_controller.rb. Also modify products_controller.rb to supply session[:redirect_to] = order_checkout_pathwhich I can handle in SurveysController.
• or just create these extra pop-ups, and when I get to the last, ask him to call the original method.

What is wrong with that? Which approach is better? This is a question, in general, about how people go to the architecture of multi-stage processes without changing the kernel code. Not a wizard , just adding extra things in the middle of other things.

Thanks for your help, Spear

Answer 1

restful_workflow:

, TurboTax, . .

Answer 2

- RESTful, , , - , Rails .

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Answer 3

order_controller_decorator.rb?

OrdersController.class_eval do
  before_filter :show_survey, :only => :populate
  def new_survey
    #regular stuff

    respond_to do |format|
      format.html do
        #if you've already been through this process, skip the before_filter
        redirect_to(new_order_line_item_url(session[:order_line_item])) and return if session[:order_line_item]
        #otherwise point to the form and store the order data in session 
        session[yeahyougetthepoint]
        render 'new_survey' 
      end
    end
  end
  def create_survey
    #regular stuff
    respond_to do |format|
      format.html {redirect_to new_order_line_item(session[:order_line_item]}
  end
end

100% 'add_to_cart', , . , Spree, .