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POundefined method `items' for nil:NilClass in @cart.items.each
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copied!<p>These are my <strong>pruduct.rb, cart.eb and item.rb</strong> </p> <pre><code>class Product < ActiveRecord::Base attr_accessible :category_id, :color, :description, :price, :size, :title, :product_type, :sub_category_id, :image_url belongs_to :category belongs_to :sub_category has_many :items end </code></pre> <p><strong>Cart.rb</strong></p> <pre><code>class Cart < ActiveRecord::Base has_many :items, dependent: :destroy end </code></pre> <p><strong>Item.rb</strong></p> <pre><code>class Item < ActiveRecord::Base attr_accessible :cart_id, :product_id,:product belongs_to :cart belongs_to :product end </code></pre> <p>The <strong>ItemContoller</strong> </p> <pre><code>class ItemController < ApplicationController def create @cart=current_cart product=Product.find(params[:product_id]) @item=@cart.items.build(product: product) redirect_to clothes_path flash.now[:success]="Product successfully added to Cart" end end </code></pre> <p>Now in my <strong>views</strong> when I want to show the <strong>cart contents</strong> like </p> <pre><code><%= @cart.items.each do |item| %> </code></pre> <p>The <strong>current_cart</strong> method </p> <pre><code>def current_cart cart=Cart.find(session[:cart_id]) rescue ActiveRecord::RecordNotFound cart=Cart.create session[:cart_id]=cart.id cart end </code></pre> <p>it gives me this error</p> <blockquote> <p>undefined method `items' for nil:NilClass </p> </blockquote> <p>What is wrong here?<br> I'm following the example <strong>Agile web Developement with Rails</strong> book.</p>

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