From 4f1e4fc223c1565f87b4c5aa52471d26f5b8974f Mon Sep 17 00:00:00 2001
From: Rohan Mitchell <rohan@rohanmitchell.com>
Date: Fri, 29 Jun 2012 08:46:31 +1000
Subject: [PATCH] Compute itemwise shipping cost for a line item

---
 app/models/spree/line_item_decorator.rb |  5 +++++
 spec/models/line_item_spec.rb           | 18 ++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 app/models/spree/line_item_decorator.rb
 create mode 100644 spec/models/line_item_spec.rb

diff --git a/app/models/spree/line_item_decorator.rb b/app/models/spree/line_item_decorator.rb
new file mode 100644
index 0000000000..507e4e1a55
--- /dev/null
+++ b/app/models/spree/line_item_decorator.rb
@@ -0,0 +1,5 @@
+Spree::LineItem.class_eval do
+  def itemwise_shipping_cost
+    self.product.shipping_cost_for_distributor(self.order.distributor)
+  end
+end
diff --git a/spec/models/line_item_spec.rb b/spec/models/line_item_spec.rb
new file mode 100644
index 0000000000..96ecea1481
--- /dev/null
+++ b/spec/models/line_item_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+module Spree
+  describe LineItem do
+    it "computes shipping cost for its product" do
+      distributor = double(:distributor)
+      order = double(:order, :distributor => distributor)
+
+      product = double(:product)
+      product.should_receive(:shipping_cost_for_distributor).with(distributor).and_return(10)
+
+      subject.stub(:order).and_return(order)
+      subject.stub(:product).and_return(product)
+
+      subject.itemwise_shipping_cost.should == 10
+    end
+  end
+end