modify controllers and models to just save paid ticket purchases

app/controllers/conference_registrations_controller.rb

@@ -28,8 +28,10 @@ class ConferenceRegistrationsController < ApplicationController
   end
 
   def show
-    @total_price = Ticket.total_price(@conference, current_user)
+    TicketPurchase.destroy_all(user_id: current_user.id, conference_id: @conference.id, paid: 'f')
+    @total_price = Ticket.total_price(@conference, current_user, 't')
     @tickets = current_user.ticket_purchases.where(conference_id: @conference.id)
+    @ticket_payments = @tickets.group_by(&:payment_id)
   end
 
   def edit; end

app/controllers/ticket_purchases_controller.rb

@@ -6,9 +6,8 @@ class TicketPurchasesController < ApplicationController
   def create
     message = TicketPurchase.purchase(@conference, current_user, params[:tickets][0])
     if message.blank?
-      if current_user.ticket_purchases.any?
-        redirect_to conference_conference_registration_path(@conference.short_title),
-                    notice: "Thank you for supporting #{@conference.title} by purchasing a ticket."
+      if current_user.ticket_purchases.where(paid: 'f').any?
+        redirect_to new_conference_payment_path, notice: 'Please pay here to purchase tickets.'
       else
         redirect_to conference_conference_registration_path(@conference.short_title)
       end

app/models/ticket.rb

@@ -21,21 +21,31 @@ class Ticket < ActiveRecord::Base
     ticket_purchases.find_by(user: user, paid: true).present?
   end
 
-  def quantity_bought_by(user)
-    result = ticket_purchases.where(user_id: user.id).first
-    result ? result.quantity : 0
+  def quantity_bought_by(user, paid)
+    result = ticket_purchases.where(user_id: user.id, paid: paid)
+    quantity = 0
+    if result
+      result.each do |ticket|
+        quantity += ticket.quantity
+      end
+    end
+    quantity
   end
 
-  def total_price(user)
-    quantity_bought_by(user) * price
+  def unpaid?(user)
+    ticket_purchases.find_by(user: user, paid: false).present?
   end
 
-  def self.total_price(conference, user)
+  def total_price(user, paid)
+    quantity_bought_by(user, paid) * price
+  end
+
+  def self.total_price(conference, user, paid)
     tickets = Ticket.where(conference_id: conference.id)
     result = nil
     begin
       tickets.each do |ticket|
-        price = ticket.total_price(user)
+        price = ticket.total_price(user, paid)
         if result
           result +=  price unless price.zero?
         else

app/models/ticket_purchase.rb

@@ -7,10 +7,6 @@ class TicketPurchase < ActiveRecord::Base
 
   validates_numericality_of :quantity, greater_than: 0
 
-  validates_uniqueness_of :user_id,
-                          scope: :ticket_id,
-                          message: 'already bought this ticket!'
-
   delegate :title, to: :ticket
   delegate :description, to: :ticket
   delegate :price, to: :ticket
@@ -23,7 +19,7 @@ class TicketPurchase < ActiveRecord::Base
       conference.tickets.each do |ticket|
         quantity = purchases[ticket.id.to_s].to_i
         # if the user bought the ticket, just update the quantity
-        if ticket.bought?(user)
+        if ticket.bought?(user) && ticket.unpaid?(user)
           purchase = update_quantity(conference, quantity, ticket, user)
         else
           purchase = purchase_ticket(conference, quantity, ticket, user)
@@ -48,7 +44,8 @@ class TicketPurchase < ActiveRecord::Base
   def self.update_quantity(conference, quantity, ticket, user)
     purchase = TicketPurchase.where(ticket_id: ticket.id,
                                     conference_id: conference.id,
-                                    user_id: user.id).first
+                                    user_id: user.id,
+                                    paid: 'f').first
 
     purchase.quantity = quantity if quantity > 0
     purchase