From f7ade48e8655c282d765f06ed47dc865b142bbe0 Mon Sep 17 00:00:00 2001
From: Lynne Davis <lynne@deanforestfoodhub.org.uk>
Date: Sat, 4 Apr 2015 17:06:26 +0100
Subject: [PATCH] Update DB schema to store updatable weight on items sold

---
 .../api/line_items_controller_decorator.rb      | 17 +++++++++++++++++
 .../20150305004846_add_weight_to_line_items.rb  |  5 +++++
 db/schema.rb                                    |  1 +
 3 files changed, 23 insertions(+)
 create mode 100644 app/controllers/spree/api/line_items_controller_decorator.rb
 create mode 100644 db/migrate/20150305004846_add_weight_to_line_items.rb

diff --git a/app/controllers/spree/api/line_items_controller_decorator.rb b/app/controllers/spree/api/line_items_controller_decorator.rb
new file mode 100644
index 0000000000..f9a025873d
--- /dev/null
+++ b/app/controllers/spree/api/line_items_controller_decorator.rb
@@ -0,0 +1,17 @@
+Spree::Api::LineItemsController.class_eval do
+  after_filter :apply_enterprise_fees, :only => :update
+
+  def apply_enterprise_fees
+    authorize! :read, order
+    order.update_distribution_charge!
+  end
+end
+
+
+#when we update a line item the .update_distribution_charge! is called
+# order.should_receive .update_distribution_charge!
+# check fails when absent
+
+# in order model check that .update_distribution_charge! is properly tested.
+# think through use cases - existing completed order
+# currently likely just used to complete orders so add test case that works on a completed order
diff --git a/db/migrate/20150305004846_add_weight_to_line_items.rb b/db/migrate/20150305004846_add_weight_to_line_items.rb
new file mode 100644
index 0000000000..a4df1a12f0
--- /dev/null
+++ b/db/migrate/20150305004846_add_weight_to_line_items.rb
@@ -0,0 +1,5 @@
+class AddWeightToLineItems < ActiveRecord::Migration
+  def change
+    add_column :spree_line_items, :unit_value, :decimal, :precision => 8, :scale => 2
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index cb8b503583..96f5896c79 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -549,6 +549,7 @@ ActiveRecord::Schema.define(:version => 20150424025907) do
     t.string   "currency"
     t.decimal  "distribution_fee",     :precision => 10, :scale => 2
     t.string   "shipping_method_name"
+    t.decimal  "unit_value",           :precision => 8,  :scale => 2
   end
 
   add_index "spree_line_items", ["order_id"], :name => "index_line_items_on_order_id"