module ReeDao::AssociationMethods::InstanceMethods

def find_dao(assoc_name, parent_caller, scope = nil)
  SUFFIXES.each do |suffix|
    dao_from_name = parent_caller.instance_variable_get("@#{assoc_name}#{suffix}")
    return dao_from_name if dao_from_name
  end
  if scope.is_a?(Sequel::Dataset)
    return scope.unfiltered
  end
  raise ArgumentError, "can't find DAO for :#{assoc_name}, provide correct scope or association name"
end