purchase.rb

# == Schema Information
#
# Table name: origins
#
#  id                  :integer          not null, primary key
#  order_number        :string(255)      not null
#  site_id             :integer          not null
#  subtotal            :decimal(25, 2)   not null
#  order_date          :datetime         not null
#  ip_address          :string(255)
#  internal_ip_address :string(45)
#  created_at          :datetime
#  updated_at          :datetime
#  visitor_id          :integer
#  person_id           :integer
#  is_new              :boolean          default(FALSE), not null
#  type                :string(25)
#  traffic_source_id   :integer          not null
#  event_category_id   :integer          not null
#

class Purchase < Event

  DEFAULT_TRAFFIC_SOURCE = 'Post-checkout'

  #------------+
  # Attributes |
  #------------+

  # Protect any sensitive attributes, since purchases controller comes in from public endpoint
  # TODO uncomment this and check test suite
  # attr_protected :site_id

  has_custom_attributes :shipping_zip
  has_custom_attributes :shipping_address

  #-------------+
  # Validations |
  #-------------+

  validates_presence_of :order_date
  validates_presence_of :subtotal
  validates_presence_of :person

  #------------------+
  # Instance methods |
  #------------------+

  def reward
    rewards.first
  end

  def to_s
    "##{order_number}"
  end

  def to_payload
    as_json(only: [],
      methods: [:id, :type, :order_number, :subtotal, :order_date, :customer_id]
    ).symbolize_keys.merge(
      # Backward compatibility:
      # We started to support multiple coupon codes only after some point
      # And we need to maintain backward compatiblity and send them as String, not as Array
      coupon_code: coupons.to_a.join(','),
    )
  end

private

  def prevent_negative_subtotal
    self.subtotal = 0 if subtotal.to_i < 0
  end
end