=================== Django Dirty Fields

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Tracking dirty fields on a Django model instance. Dirty means that field in-memory and database values are different.

This package is compatible and tested with the following Python & Django versions:

+------------------------+-----------------------------------+ | Django | Python | +========================+===================================+ | 2.0, 2.1 | 3.7 | +------------------------+-----------------------------------+ | 2.2, 3.0, 3.1 | 3.7, 3.8, 3.9 | +------------------------+-----------------------------------+ | 3.2 | 3.7, 3.8, 3.9, 3.10 | +------------------------+-----------------------------------+ | 4.0, 4.1 | 3.8, 3.9, 3.10 | +------------------------+-----------------------------------+

Install

.. code-block:: bash

$ pip install django-dirtyfields

Usage

To use django-dirtyfields, you need to:

• Inherit from DirtyFieldsMixin in the Django model you want to track.

.. code-block:: python

from django.db import models
from dirtyfields import DirtyFieldsMixin

class ExampleModel(DirtyFieldsMixin, models.Model):
    """A simple example model to test dirty fields mixin with"""
    boolean = models.BooleanField(default=True)
    characters = models.CharField(blank=True, max_length=80)

• Use one of these 2 functions on a model instance to know if this instance is dirty, and get the dirty fields:

  • is_dirty()
  • get_dirty_fields()

Example

.. code-block:: python

>>> model = ExampleModel.objects.create(boolean=True,characters="first value")
>>> model.is_dirty()
False
>>> model.get_dirty_fields()
{}

>>> model.boolean = False
>>> model.characters = "second value"

>>> model.is_dirty()
True
>>> model.get_dirty_fields()
{'boolean': True, "characters": "first_value"}

Consult the full documentation <https://django-dirtyfields.readthedocs.io/>_ for more information.