django - Djongo 和 Django

Question

项目 Django 和 Djongo

模型.py

from djongo import models

class Son(models.Model):
    name=models.CharField()
    last_name=models.CharField()

class Master (models.Model)
    _id = models.ObjectIdField() 
    son = models.EmbeddedField() 
    objects = models.DjongoManager()

错误->

return getattr(self, meta.pk.attname)
AttributeError: 'NoneType' object has no attribute 'attname'

请帮忙

标签： djangodjango-modelsdjongo