Adding transactions

-Need to create a customers table to store contact information of customers who are not a user.
-Need to scope "User Transactions" for users, staff, and admin. Need to have a "All Shop Transactions" tab.
-Need to add conditional UX to form.

db/migrate/20121205043759_create_transactions.rb

@@ -1,9 +1,12 @@
 class CreateTransactions < ActiveRecord::Migration
   def change
     create_table :transactions do |t|
-      t.integer "user_id", :null => false
+      t.integer "vendor_id", :null => false
+      t.integer "customer_id"
+      t.integer "customer_type"
       t.integer "bike_id"
       t.integer "amount", :null => false
+      t.string  "item", :null => false
       #Adding whether or not a user sold or purchased the bike
       #could be used to help keep track of external sales.
       #aka, a collective member (user) sold a bike to
@@ -11,6 +14,7 @@ class CreateTransactions < ActiveRecord::Migration
       #Currently this model automatically assumes that the user is 
       #purchasing a bike, or a part for a bike from the collective
       #t.boolean "user_sold_flag", :default => false
+      t.timestamps
     end
   end
 end