aaa

app/controllers/application_controller.rb

@@ -16,7 +16,6 @@ class ApplicationController < ActionController::Base
       @cart = Cart.create()
     end
     session[:cart_id] = @cart.id
-
   end
 
   def configure_permitted_parameters

app/controllers/carts_controller.rb

@@ -43,4 +43,28 @@ class CartsController < ApplicationController
   def find_card
     @cart = Cart.find(params[:id])
   end
+
+  def add_product_to_cart(product_id, quantity)
+    quantity ||= 1
+    product_id = product_id.to_s
+
+    current_quantity = cart_products_hash.fetch(product_id, {}).fetch('quantity', 0)
+    quantity += current_quantity
+
+    cart_products_hash[product_id] = { 'quantity' => quantity }
+  end
+
+  def remove_product_from_cart(product_id)
+    product_id = product_id.to_s
+    cart_products_hash.delete(product_id)
+  end
+
+   def cart_hash
+    @session['cart']
+  end
+
+  def cart_products_hash
+    @session['cart']['products']
+  end
+
 end