postal/app/models/address_endpoint.rb

# == Schema Information
#
# Table name: address_endpoints
#
#  id           :integer          not null, primary key
#  server_id    :integer
#  uuid         :string(255)
#  address      :string(255)
#  last_used_at :datetime
#  created_at   :datetime         not null
#  updated_at   :datetime         not null
#

class AddressEndpoint < ApplicationRecord

  include HasUUID

  belongs_to :server
  has_many :routes, :as => :endpoint
  has_many :additional_route_endpoints, :dependent => :destroy, :as => :endpoint

  validates :address, :presence => true, :format => {:with => /@/}, :uniqueness => {:scope => [:server_id], :message => "has already been added"}

  before_destroy :update_routes

  def mark_as_used
    update_column(:last_used_at, Time.now)
  end

  def update_routes
    self.routes.each { |r| r.update(:endpoint => nil, :mode => 'Reject') }
  end

  def description
    self.address
  end

  def domain
    address.split('@', 2).last
  end

end