[Answered ]-Django overriding filter() without change existing code logic

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Yes, you can make a manager such that .objects will only retain People with graduated=False:

class PeopleManager(models.Manager):
    
    def get_queryset(self):
        return super().get_queryset().filter(graduated=False)

class People(models.Model):
    name = models.CharField(max_length=20)
    gender = models.CharField(max_length=20)
    class = models.CharField(max_length=20)
    graduated = models.BooleanField(default=False)
    
    objects = PeopleManager()
    all = models.Manager()

You can use People.all.all() to retrieve all People, and People.objects.all() to retrieve all People that did not graduate.

That being said, I do not recommend this: often People.objects.all() gives the impression that one will retrieve all People. As the Zen of Python says: "explicit over implicit": it is better that the code explains and hints what it is doing, not move filtering somewhere hidden in a manager.

👤willeM_ Van Onsem

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