Create new transaction log table to track user conversions

db/migrate/20140204233337_create_transaction_log_items.rb

@@ -0,0 +1,14 @@
+class CreateTransactionLogItems < ActiveRecord::Migration
+  def change
+    create_table :transaction_log_items do |t|
+      t.string :category
+      t.integer :user_id
+      t.text :data
+
+      t.timestamps
+    end
+
+    add_index :transaction_log_items, :user_id
+    add_index :transaction_log_items, :created_at
+  end
+end