move stripe API call to model, schema changes

app/controllers/payments_controller.rb

@@ -17,32 +17,23 @@ class PaymentsController < ApplicationController
     @unpaid_ticket_purchases = current_user.ticket_purchases.unpaid.by_conference(@conference)
     @total_amount_to_pay = Ticket.total_price(@conference, current_user, paid: false)
 
-    customer = Stripe::Customer.create(
-      :email => params[:stripeEmail],
-      :source  => params[:stripeToken]
-    )
+    @payment = Payment.new payment_params.merge(user: current_user, conference: @conference)
+    @payment.purchase
+    @payment.save
 
-    gateway_response = Stripe::Charge.create(
-      :customer    => customer.id,
-      :amount      => @total_amount_to_pay.cents,
-      :description => 'Rails Stripe customer',
-      :currency    => @conference.tickets.first.price_currency
-    )
+    update_purchased_ticket_purchases
 
-    payment = Payment.purchase(gateway_response, current_user, @conference)
-    update_purchased_ticket_purchases(payment)
-
-    redirect_to conference_conference_registration_path(@conference.short_title),
-      flash: { success: 'Thanks! You have purchased your tickets successfully.' }
-
-    rescue Stripe::CardError => e
-      flash[:error] = e.message
-      render 'new'
+    redirect_to conference_conference_registration_path(@conference.short_title), flash:
+      { success: 'Thanks! You have purchased your tickets successfully.' }
   end
 
-private
+  private
 
-  def update_purchased_ticket_purchases(payment)
-    current_user.ticket_purchases.by_conference(@conference).unpaid.update_all(paid: true, payment_id: payment.id)
+  def payment_params
+    params.permit :stripeEmail, :stripeToken
+  end
+
+  def update_purchased_ticket_purchases
+    current_user.ticket_purchases.by_conference(@conference).unpaid.update_all(paid: true, payment_id: @payment.id)
   end
 end

app/models/payment.rb

@@ -3,6 +3,9 @@ class Payment < ActiveRecord::Base
   belongs_to :user
   belongs_to :conference
 
+  attr_accessor :stripeEmail
+  attr_accessor :stripeToken
+
   validates :last4, presence: true
   validates :authorization_code, presence: true
   validates :status, presence: true
@@ -16,12 +19,29 @@ class Payment < ActiveRecord::Base
     failure: 2
   }
 
-  def self.purchase(gateway_response, user, conference)
-    create(last4: gateway_response[:source][:last4],
-           amount: gateway_response[:amount],
-           status: (gateway_response[:paid] ? 1 : 0),
-           authorization_code: gateway_response[:id],
-           user_id: user.id,
-           conference_id: conference.id)
+  def amount_to_pay
+    Ticket.total_price(conference, user, paid: false).cents
+  end
+
+  def purchase
+    customer = Stripe::Customer.create email: stripeEmail,
+                                       source: stripeToken,
+                                       description: user.name
+
+    gateway_response = Stripe::Charge.create customer: customer.id,
+                                             receipt_email: stripeEmail,
+                                             description: 'ticket purchases',
+                                             amount: amount_to_pay,
+                                             currency: conference.tickets.first.price_currency
+
+    self.amount = gateway_response[:amount]
+    self.last4 = gateway_response[:source][:last4]
+    self.authorization_code = gateway_response[:id]
+    self.status = 'success'
+    true
+
+  rescue Stripe::CardError => e
+    flash[:error] = e.message
+    false
   end
 end

db/migrate/20160606040848_create_payments.rb

@@ -1,9 +1,9 @@
 class CreatePayments < ActiveRecord::Migration
   def change
     create_table :payments do |t|
-      t.string :last4, null: false
-      t.integer :amount, null: false
-      t.string :authorization_code, null: false
+      t.string :last4
+      t.integer :amount
+      t.string :authorization_code
       t.integer :status, default: 0, null: false
       t.integer :user_id, null: false
       t.integer :conference_id, null: false

db/schema.rb

@@ -264,9 +264,9 @@ ActiveRecord::Schema.define(version: 20160704092023) do
   end
 
   create_table "payments", force: :cascade do |t|
-    t.string   "last4",                          null: false
-    t.integer  "amount",                         null: false
-    t.string   "authorization_code",             null: false
+    t.string   "last4"
+    t.integer  "amount"
+    t.string   "authorization_code"
     t.integer  "status",             default: 0, null: false
     t.integer  "user_id",                        null: false
     t.integer  "conference_id",                  null: false