has_one association with :conditions: is this somehow possible?

What is the right way to achieve something like this:

class Design < ActiveRecord::Base   belongs_to :card_collection   after_save :generate_images

  has_one :background,           :as => :resourceable,           :class_name => "Resource",           :conditions => [ 'title = ?', self.id ],           :dependent => :destroy end

What is the right way to achieve something like this:

class Design < ActiveRecord::Base belongs_to :card_collection after_save :generate_images

has_one :background,          :as => :resourceable,          :class_name => "Resource",          :conditions => [ 'title = ?', self.id ],          :dependent => :destroy end

-------------------- Everything here is working as expected. ONLY the conditions part is not working...

The problem is that self.id is NOT the @my_design.id (the id of the active record design instance), but the object_id of the instance. HOW can I tell ActiveRecord that I want the @my_design.id ???

Set conditions to 'title =#{self.id}' (make sure it's single quotes
not double quotes). Activerecord should interpolate it for you.

Fred

Hi Fred,

thanks for the hint. I finally found out how to get it work: