如何在这种情况下建立关系？

Question

这样现在我有创建的方法..

class TestMessage < ActiveRecord::Base 
    def test 
    Test.find(:first,:conditions => ["test_uri = ?",self.sfl_test_uri]) 
    end 
end 

class Test < ActiveRecord::Base 
    def test_messages 
    TestMessage.find(:all,:conditions => ["sfl_test_uri = ?",self.test_uri]) 
    end 
end 

请问有什么可以转换成关系呢？

Answer 1

试着这么做：

class TestMessage < ActiveRecord::Base 
    belongs_to :test, :foreign_key => :sfl_test_uri, :primary_key => :test_uri 
end 

class Test < ActiveRecord::Base 
    has_many :test_messages, :foreign_key => :sfl_test_uri, :primary_key => :test_uri 
end