PayPal Cart

cart.rb

class Cart < ActiveRecord::Base
  
  scope :find_standard_subscription_purchased, where("line_items.product_name = ? AND purchased = ?", "Standard Subscription", true).includes(:line_items)
  
  belongs_to :user
  
	has_many :line_items
	has_many :payment_notification

	def total_price
    # convert to array so it doesn't try to do sum on database directly
    line_items.to_a.sum(&:full_price)
    
  end
  def paypal_url(return_url, notify_url)
    if Rails.env.production?
      business = 'production@email.com'
    else
      business = "development@email.com"
    end
    
    
    values = {
      :business => business,
      :cmd => '_cart',
      :upload => 1,
      :return => return_url,
      :invoice => id,
      :notify_url => notify_url
    }
    line_items.each_with_index do |item, index|
      values.merge!({
        "amount_#{index+1}" => item.unit_price,
        "item_name_#{index+1}" => item.product_name,
        "item_number_#{index+1}" => item.id,
        "quantity_#{index+1}" => item.quantity
      })
    end
    if Rails.env.production?
      "https://www.paypal.com/cgi-bin/webscr?" + values.to_query
    else
      "https://www.sandbox.paypal.com/cgi-bin/webscr?" + values.to_query
    end
    
  end
end