A django abstract model that tracks model fields' values and provide some useful api to know what fields have been changed.
pip install django-diffable
Inherit from DiffableModel:
from diffable.models import DiffableModel
from django.db import models
class Product(DiffableModel):
name = models.CharField(max_length=30)
Use as follows:
>>> product = Product(name='Atari')
>>> product.has_changed
False
>>> product.changed_fields
[]
>>> product.name = 'Commodore'
>>> product.has_changed
True
>>> product.changed_fields
['name']
>>> product.diff
{'name': ('Atari', 'Commodore')}
>>> product.get_field_diff('name')
('Atari', 'Commodore')
>>> product.save()
>>> product.has_changed
False
>>> product.name = 'ZX Spectrum'
>>> product.has_changed
True
>>> product.refresh_from_db()
>>> product.has_changed
False
>>> product.name
'Commodore'
The Django Diffable package is licensed under the FreeBSD License.