class User < ActiveRecord::Base
  EXPORT = [:username, :email, :first_name, :last_name, :terms, :sector]

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  validates_presence_of [:sector]
  validates_inclusion_of :terms, :in => [true, false]

  scope :newsletter, -> {
    select *EXPORT
  }

  def self.to_csv
    CSV.generate do |csv|
      csv << EXPORT
      newsletter.each do |user|
        binding.pry
        csv << user.attributes.values_at(*EXPORT)
      end
    end
  end
end