edit api

db/migrate/20170208111712_add_location_code_in_clients.rb

@@ -0,0 +1,5 @@
+class AddLocationCodeInClients < ActiveRecord::Migration[5.0]
+  def change
+  	  add_column :clients, :location_code, :string 
+  end
+end

db/migrate/20170209102414_add_product_type_in_batches.rb

@@ -0,0 +1,5 @@
+class AddProductTypeInBatches < ActiveRecord::Migration[5.0]
+  def change
+  	 add_reference :batches, :product_category, index: true
+  end
+end