Rails won't create instance variable - sql

Question

Ok so I am building an eBay clone of sorts and I am trying to implement Braintree as the payments processor and I am having serious issues with my orders controller. All of my logic for creating customers in braintree etc. works. The issue I am having is that I can't get the product id to save when creating my orders.
I have nested the routes for my orders resource below my products resource like so:
resources :products do
resources :orders
end
Due to the routing I have set up, the parameters that are passed are:
{"_method"=>"get", "authenticity_token"=>"", "controller"=>"orders", "action"=>"new", **"product_id"=>"4"}**
My product ID gets passed into the new action. My logic is that I can store it in an instance variable and then save it to my order. My controller is as follows:
def new
if current_user.is_customer?
#client_token = Braintree::ClientToken.generate(:customer_id => current_user.id)
else
#client_token = Braintree::ClientToken.generate()
end
console
end
def create
amount = 50 # only set to a whole decimal number with no '.'
amount_str = "#{amount}.00"
#product=Product.find_by(params[:product_id])
nonce = params[:payment_method_nonce]
render action: :new and return unless nonce
#order = Order.new
#order.amount = amount
#order.user_id = current_user.id
#order.product_id= #product.id
if current_user.is_customer?
result = Braintree::Transaction.sale(
:amount => amount_str,
:payment_method_nonce => nonce,
:order_id => #order.id,
:customer_id => current_user.id,
:options => {
:submit_for_settlement => false,
:store_in_vault_on_success => true,
},
)
if result.success?
#order.save!
redirect_to support_product_path(#product), notice: "Success. Orange you glad I've used Braintree to process your payment?!"
else
render 'new'
flash[:alert] = "Something wasn't quite right. #{result.transaction.processor_response_text}"
end
else
result = Braintree::Transaction.sale(
:amount => amount_str,
:payment_method_nonce => nonce,
:order_id => #order.id,
:customer => {
:id => current_user.id,
:first_name => current_user.first_name,
:last_name => current_user.last_name
},
:options => {
:submit_for_settlement => false,
:store_in_vault_on_success => true,
}
)
if result.success?
#order.save!
redirect_to product_path(#product), notice: "Success. Orange you glad I've used Braintree to process your payment?!"
else
render 'new'
flash[:alert] = "Something wasn't quite right. #{result.transaction.processor_response_text}"
end
end
end
I have an association for orders and products and I have done a references migration like so:
class AddProductsUsersToOrders < ActiveRecord::Migration
def change
add_reference :orders, :product, index: true
add_foreign_key :orders, :products
add_reference :orders, :user, index: true
add_foreign_key :orders, :users
end
end
Order Model:
class Order < ActiveRecord::Base
belongs_to :user
belongs_to :product
end
So the logic works and gets created however it saves the product_id as the first product in my database and redirects to it regardless of which product I try to order. I have spent hours on this any help is appreciated.