Question

I’m using DataMapper with the redis adapter in a Ruby library.

I have these classes defined:

class Zone

  include DataMapper::Resource

  property :id, String, :key => true, :unique_index => true, :default => lambda { |x,y| UUID.new.generate }
  property :preview_mode, Boolean, :default => false

  timestamps :at

  has 1, :campaign
end

and

class Campaign

  include DataMapper::Resource

  property :id, String, :key => true, :unique_index => true, :default => lambda { |x,y| UUID.new.generate }
  property :name, String

  timestamps :at

  belongs_to :zone
  has n, :rules

  validates_presence_of :name
end

I’m able to do Campaign.first.zone but not Zone.first.campaign.

I would like to be able to do the lookups in both directions.

Answer 1

@lightyrs I responded to your github issue, but for reference here, I think this issue has been fixed in versions > 0.8 that have better support for non-serial primary keys.

Cheers! – whoahbot