class ActiveRecord::HasManyThroughOrderError

def initialize(owner_class_name = nil, reflection = nil, through_reflection = nil)
  if owner_class_name && reflection && through_reflection
    super("Cannot have a has_many :through association '#{owner_class_name}##{reflection.name}' which goes through '#{owner_class_name}##{through_reflection.name}' before the through association is defined.")
  else
    super("Cannot have a has_many :through association before the through association is defined.")
  end
end