app/controllers/store_controller.rb

   1 class StoreController < ApplicationController
   2   def index
   3     @products = Product.find_products_for_sale
   4     @cart = find_cart
   5   end
   6
   7   def add_to_cart
   8     product = Product.find(params[:id])
   9     @cart = find_cart
  10     @current_item = @cart.add_product(product)
  11       respond_to do |format|
  12         format.js if request.xhr?
  13         format.html {redirect_to_index}
  14       end
  15   rescue ActiveRecord::RecordNotFound
  16     logger.error("Attempt to access invalid product #{params[:id]}" )
  17     redirect_to_index('Invalid product')
  18   end
  19
  20   def empty_cart
  21     session[:cart] = nil
  22     redirect_to_index unless request.xhr?
  23   end
  24
  25   def checkout
  26     @cart = find_cart
  27     if @cart.items.empty?
  28       redirect_to_index("Your cart is empty" )
  29     else
  30       @order = Order.new
  31       @during_checkout = true
  32       respond_to do |format|
  33         format.js if request.xhr?
  34         format.html
  35       end
  36     end
  37   end
  38
  39   def save_order
  40     @cart = find_cart
  41     @order = Order.new(params[:order])
  42     # @order.add_line_items_from_cart(@cart)
  43     @cart.items.each do |item|
  44       li = LineItem.new
  45       li.product      = item.product
  46       li.quantity     = item.quantity
  47       li.total_price  = item.price
  48       @order.line_items << li
  49     end
  50     if @order.save
  51       session[:cart] = nil
  52       redirect_to_index("Thank you for your order")
  53     else
  54       render :action => 'checkout'
  55     end
  56     @during_checkout = false
  57   end
  58
  59
  60  private
  61
  62   def find_cart
  63     session[:cart] ||= Cart.new
  64   end
  65
  66   def redirect_to_index(msg = nil)
  67     flash[:notice] = msg if msg
  68     redirect_to :action => 'index'
  69   end
  70
  71 end