擅长:python、mysql、java
<p>首先,您可能需要为\u元类使用唯一的\u together选项。参见:<a href="https://docs.djangoproject.com/en/1.3/ref/models/options/#unique-together" rel="nofollow">https://docs.djangoproject.com/en/1.3/ref/models/options/#unique-together</a></p>
<p>编辑:看起来django至少需要一个主键字段。<a href="https://docs.djangoproject.com/en/1.3/topics/db/models/#automatic-primary-key-fields" rel="nofollow">https://docs.djangoproject.com/en/1.3/topics/db/models/#automatic-primary-key-fields</a></p>