gistfile1.rb

def relateds_around
    product_id = self.id
    organization_id = self.organization.id
    Relationship.find(:all) do
      any do
        all do
          left_type == "Product"
          left_id == product_id
          right_type == "Place"
        end
        
        all do
          left_type == "Organization"
          left_id == organization_id
          right_type == "Place"
        end
        
        all do
          left_type == "Product"
          left_id == product_id
          right_type == "Event"
        end
        
        all do
          left_type == "Organization"
          left_id == organization_id
          right_type == "Event"
        end
      end
    end.map(&:right).delete_if { |r| r.is_a?(Event) && r.past? }
  end