Django模型中的默认过滤器

Question

可以在Django模型中设置默认过滤器吗？

喜欢的东西：

class MyModel(models.Model): 
    timestamp = models.DateTimeField(default=datetime.utcnow) 
    active = models.BooleanField(default=True) 

    class Meta: 
     ordering = ['-timestamp'] 
     filtering = [active=True] 

Answer 1

你必须重写manager：

class MyModelManager(models.Manager): 
    def get_queryset(self): 
     return super(MyModelManager, self).get_queryset().filter(active=True) 

class MyModel(models.Model): 
    timestamp = models.DateTimeField(default=datetime.utcnow) 
    active = models.BooleanField(default=True) 

    objects = MyModelManager() 

    class Meta: 
     ordering = ['-timestamp'] 

get_queryset为get_query_set Django的前1.6