Ruby Activescaffold로 다양한 모델을 반환하려고하면 상속 모델을 찾으십시오

Question

class Promotion 
def self.get_todays_promotions 
    # Promotion is a parent model, having child models e.g. 
    # DiscountPromotion, VoucherPromotion, etc. 
    # they all use a single table called promotions 
    # (and having 'type' field explaining which model they belong to) 
    promotions = self.find(:all, :conditions => [Promotion.date_check_query], :order => "#{Promotion.table_name}.order_of_calculation") 

    # Normally promotions would contain a collection of Promotion models. 
    # I want to return a collection of various models here depending on 
    # each model's class name 
    end 
end 

위 작업을 수행 할 수 있습니까?

감사합니다.

Answer 1

는 위의 의견으로 대답했습니다.