5 Django packages that extend the functionality of models or add new classes of models

  • Mar 20, 2022
Django-aggregate-if/

Django-aggregate-if - Python

138

Conditional aggregates for Django queries, just like the famous SumIf and CountIf in Excel.

Imagine you have a model Offer like this one:

class Offer(models.Model):
    sponsor = models.ForeignKey(User)
    price = models.DecimalField(max_digits=9, decimal_places=2)
    status = models.CharField(max_length=30)
    expire_at = models.DateField(null=True, blank=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    OPEN = "OPEN"
    REVOKED = "REVOKED"
    PAID = "PAID"

 

Django-localflavor/

Django-localflavor - Python

676

Country-specific Django helpers, formerly of contrib fame

 

Django-model-utils/

Django-model-utils - Python

2.2k

Django model mixins and utilities.

 

Django-mptt/

Django-mptt - Python

2.6k

Utilities for implementing a modified pre-order traversal tree in django.

 

Django-treebeard/

Django-treebeard - Python

856

Efficient tree implementations for Django

Features

  • Flexible: Includes 3 different tree implementations with the same API:
    1. Adjacency List
    2. Materialized Path
    3. Nested Sets
  • Fast: Optimized non-naive tree operations
  • Easy: Uses Django Model Inheritance with abstract classes to define your own models.
  • Clean: Testable and well tested code base. Code/branch test coverage is above 96%. Test suite running on different versions of Python and Django: https://travis-ci.org/django-treebeard/django-treebeard/
django python tree-structure