allocations.rb

class Allocation < AR::Base
  # allocations schema
  # - line_item_id - indexed
  # - type - string [ ‘CreditAllocation’, ‘DebitAllocation’  ] - indexed
  # - allocatable_id - integer - indexed
  # - amount - integer
  
  belongs_to :line_item
  belongs_to :allocatable, class_name: ‘LineItem’
end

class CreditAllocation < Allocation
end

class DebitAllocation < Allocation
end

class Violation < AR::Base
  belongs_to :line_item
  
  # join payments via allocations
  # join adjustments via allocations
end


class LineItem < AR::Base
  has_many :violations
end