From 521834bd76d8a22b6279c49262821fa97528abec Mon Sep 17 00:00:00 2001
From: Lynne Davis <lynne@deanforestfoodhub.org.uk>
Date: Fri, 24 Apr 2015 16:17:00 +0100
Subject: [PATCH] Populate the line item unit value, when line_item created and
 update old data in migration

---
 app/models/spree/order_decorator.rb                      | 1 +
 .../20150424151117_populate_line_item_unit_value.rb      | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 db/migrate/20150424151117_populate_line_item_unit_value.rb

diff --git a/app/models/spree/order_decorator.rb b/app/models/spree/order_decorator.rb
index 0dc6977965..cbc5c0086d 100644
--- a/app/models/spree/order_decorator.rb
+++ b/app/models/spree/order_decorator.rb
@@ -127,6 +127,7 @@ Spree::Order.class_eval do
     else
       current_item = Spree::LineItem.new(:quantity => quantity, max_quantity: max_quantity)
       current_item.variant = variant
+      current_item.unit_value = variant.unit_value
       if currency
         current_item.currency = currency unless currency.nil?
         current_item.price    = variant.price_in(currency).amount
diff --git a/db/migrate/20150424151117_populate_line_item_unit_value.rb b/db/migrate/20150424151117_populate_line_item_unit_value.rb
new file mode 100644
index 0000000000..2122b84472
--- /dev/null
+++ b/db/migrate/20150424151117_populate_line_item_unit_value.rb
@@ -0,0 +1,9 @@
+class PopulateLineItemUnitValue < ActiveRecord::Migration
+  def up
+    execute "UPDATE spree_line_items SET unit_value = spree_variants.unit_value FROM spree_variants WHERE spree_line_items.variant_id = spree_variants.id"
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end