Super In Django Manager

Introduction

When working with Django, the manager is a crucial part of the framework that enables you to interact with your models and databases. The default manager in Django is great, but did you know that you can create your own customized managers? That's where "super in Django manager" comes in.

In this article, we'll explore the concept of a "super" manager in Django, and how it can help you achieve greater flexibility and control over your models.

What Is a Super Manager?

A super manager is a customized manager that inherits all the functionality of Django's default manager, but also adds additional methods and queries that are specific to your needs. By extending the functionality of the default manager, a super manager can make working with your models much easier and more efficient.

Creating a Super Manager

To create your own super manager, you simply need to define a new manager that inherits from Django's default manager. Here's an example:

from django.db import models

class CustomManager(models.Manager):
    def active(self):
        return self.filter(is_active=True)

In this example, we're defining a super manager called "CustomManager" that includes an additional method called "active". This method simply returns all objects that have the "is_active" field set to True.

Using a Super Manager

Now that we've defined our super manager, how can we use it? One way is to assign it to a specific model as its default manager, like this:

from django.db import models

class MyModel(models.Model):
    # fields
    objects = CustomManager() # assign the CustomManager as the default manager

In this example, we're assigning our "CustomManager" as the default manager for the "MyModel" object. This means that all queries that are run on the "MyModel" object will use the "CustomManager" by default.

Conclusion

Super managers are a powerful tool that can make working with Django models much easier and more efficient. By adding custom methods and queries, you can create a manager that is tailored to your specific needs, and that can help you get the most out of Django.