class Credit < ActiveRecord::Base
  belongs_to :customer
  belongs_to :pointsale
  belongs_to :sale

  has_many :credit_payments
  has_many :cash_registers_moves, through: :credit_payments

  enum status: [:active, :cancelled, :expired, :liquidated]

  scope :debtors, -> { where("rest > 0").group(:customer_id).sum(:rest) }

  scope :activos, -> { where(status: [0, 2]) }
end