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Django Dirty Fields

Join the chat at https://gitter.im/romgar/django-dirtyfields Published PyPI version Travis CI status Coveralls code coverage status Read the Docs documentation status

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
1.11, 2.0, 2.1 3.6, 3.7
2.2, 3.0, 3.1, 3.2 3.6, 3.7, 3.8, 3.9

Install

$ pip install django-dirtyfields

Usage

To use django-dirtyfields, you need to:

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

    from django.db import models
    from dirtyfields import DirtyFieldsMixin
    
    class ModelTest(DirtyFieldsMixin, models.Model):
        """A simple test 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

>>> from tests.models import ModelTest
>>> tm = ModelTest.objects.create(boolean=True,characters="testing")
>>> tm.is_dirty()
False
>>> tm.get_dirty_fields()
{}

>>> tm.boolean = False

>>> tm.is_dirty()
True
>>> tm.get_dirty_fields()
{'boolean': True}

Consult the full documentation for more information.

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