Contents

module ShoppingCart
  class InstallGenerator < Rails::Generators::Base

    def create_initializer
      create_file(initializer) unless File.exist?(initializer)
    end

    def set_user_class
      unless File.readlines(initializer).grep(/ShoppingCart.user_class/).any?
        class_name = ask("User model (leave blank for 'User'):")
        class_name = 'User' if class_name.blank?
        append_to_file initializer, "ShoppingCart.user_class = '#{class_name.capitalize}'\n"
      end
    end

    def set_checkout_steps
      unless File.readlines(initializer).grep(/ShoppingCart.checkout_steps/).any?
        steps = ask(steps_question)
                .split(/\W+/).map(&:downcase).map(&:to_sym)
                .concat [:confirm, :complete]
        append_to_file initializer, "ShoppingCart.checkout_steps = #{steps}\n"
      end
    end

    def set_routes
      unless File.readlines(router).grep(/ShoppingCart::Engine/).any?
        cart_path = ask "Cart path (leave blank for '/cart'):"
        cart_path = '/cart' if cart_path.blank?
        inject_into_file router, before: "root" do
          "mount ShoppingCart::Engine, at: '#{cart_path}'\n  "
        end
      end
    end

    def install_migrations
      rake 'shopping_cart:install:migrations'
    end

    def run_migrations
      if yes? 'Do you want to run ShoppingCart migrations now?'
        rake "db:migrate SCOPE=shopping_cart"
      end
    end

    private

    def initializer
      'config/initializers/shopping_cart.rb'
    end

    def router
      'config/routes.rb'
    end

    def steps_question
      "Checkout steps (leave blank for confirmation only):"
    end

  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
shopping-cart-0.1.0	lib/generators/shopping_cart/install/install_generator.rb