django-model-values 0.3

Taking the O out of ORM.

About django-model-values

Provides Django model utilities for encouraging direct data access instead of unnecessary object overhead. Implemented through compatible method and operator extensions to QuerySets and Managers.

The goal is to provide elegant syntactic support for best practices in using Django’s ORM. Specifically avoiding the inefficiencies and race conditions associated with always using objects.

Usage

Do you want readability, …

book = Book.objects.get(pk=pk)
book.rating = 5.0
book.save()

efficiency, correctness, …

Book.objects.filter(pk=pk).update(rating=5.0)

Choose all 3

Book.objects[pk]['rating'] = 5.0

Instantiate the custom Manager in your models. See documentation for more examples.

Installation

Standard installation from pypi or local download.

$ pip install django-model-values
$ python setup.py install

Dependencies

• Django 1.8+

• Python 2.7, 3.3+

Tests

100% branch coverage.

$ py.test [--cov]

Changes

0.3

• Lookup methods and operators

• F expressions and aggregation methods

• Database functions

• Conditional expressions for updates and annotations

• Bulk updates and change detection

0.2

• Change detection

• Groupby functionality

• Named tuples