add active merchant and payment schema

db/migrate/20160606040848_create_payments.rb

@@ -0,0 +1,18 @@
+class CreatePayments < ActiveRecord::Migration
+  def change
+    create_table :payments do |t|
+      t.string :first_name
+      t.string :last_name
+      t.string :last4
+      t.decimal :amount, precision: 12, scale: 3
+      t.string :authorization_code
+      t.integer :status, default: 0
+      t.integer :user_id
+      t.integer :conference_id
+      t.datetime :created_at
+      t.datetime :updated_at
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160610073948_add_payment_id_to_ticket_purchases.rb

@@ -0,0 +1,5 @@
+class AddPaymentIdToTicketPurchases < ActiveRecord::Migration
+  def change
+    add_column :ticket_purchases, :payment_id, :integer
+  end
+end

db/schema.rb

@@ -250,6 +250,17 @@ ActiveRecord::Schema.define(version: 20160624151257) do
     t.datetime "updated_at"
   end
 
+  create_table "payments", force: :cascade do |t|
+    t.string   "first_name"
+    t.string   "last_name"
+    t.string   "last4"
+    t.decimal  "amount",             precision: 12, scale: 3
+    t.string   "authorization_code"
+    t.integer  "status",                                      default: 0
+    t.datetime "created_at",                                              null: false
+    t.datetime "updated_at",                                              null: false
+  end
+
   create_table "programs", force: :cascade do |t|
     t.integer  "conference_id"
     t.integer  "rating",          default: 0
@@ -396,6 +407,7 @@ ActiveRecord::Schema.define(version: 20160624151257) do
     t.datetime "created_at"
     t.integer  "quantity",      default: 1
     t.integer  "user_id"
+    t.integer  "payment_id"
   end
 
   create_table "tickets", force: :cascade do |t|