How can I use advanced models in Django ORM?

How can I use advanced models in Django ORM?

You can use advanced models in Django ORM by leveraging features like model inheritance, custom managers, and abstract base classes.

Can you explain model inheritance with an example?

Sure! In Django, you can create a base model and then inherit from it. For example, if you have a base model Person, you can create Student and Teacher models that inherit from Person.

What are custom managers and how do I create one?

Custom managers allow you to add extra methods to your model's query set. You can create one by defining a class that inherits from models.Manager and adding your methods.

Can you give me a code snippet for a custom manager?

Certainly! Here's a simple example:

class ActiveManager(models.Manager):
    def get_queryset(self):
        return super().get_queryset().filter(is_active=True)

class User(models.Model):
    is_active = models.BooleanField(default=True)
    objects = ActiveManager()