Store model history and view/revert changes from admin site.
Project description
django-simple-history
django-simple-history is a tool to store state of DB objects on every create/update/delete.
Install
Install from PyPI with pip:
$ pip install django-simple-historyBasic usage
Using this package is _really_ simple; you just have to import HistoricalRecords and create an instance of it on every model you want to historically track.
On your models you need to include the following line at the top:
from simple_history.models import HistoricalRecordsThen in your model class, include the following line:
history = HistoricalRecords()Then from either the model class or from an instance, you can access history.all() which will give you either every history item of the class, or every history item of the specific instance.
Example
Models:
class Poll(models.Model):
question = models.CharField(max_length = 200)
pub_date = models.DateTimeField('date published')
history = HistoricalRecords()
class Choice(models.Model):
poll = models.ForeignKey(Poll)
choice = models.CharField(max_length=200)
votes = models.IntegerField()
history = HistoricalRecords()Usage:
>>> from poll.models import Poll, Choice
>>> Poll.objects.all()
[]
>>> import datetime
>>> p = Poll(question="what's up?", pub_date=datetime.datetime.now())
>>> p.save()
>>> p
<Poll: Poll object>
>>> p.history.all()
[<HistoricalPoll: Poll object as of 2010-10-25 18:03:29.855689>]
>>> p.pub_date = datetime.datetime(2007,4,1,0,0)
>>> p.save()
>>> p.history.all()
[<HistoricalPoll: Poll object as of 2010-10-25 18:04:13.814128>, <HistoricalPoll: Poll object as of 2010-10-25 18:03:29.855689>]
>>> p.choice_set.create(choice='Not Much', votes=0)
<Choice: Choice object>
>>> p.choice_set.create(choice='The sky', votes=0)
<Choice: Choice object>
>>> c = p.choice_set.create(choice='Just hacking again', votes=0)
>>> c.poll
<Poll: Poll object>
>>> c.history.all()
[<HistoricalChoice: Choice object as of 2010-10-25 18:05:30.160595>]
>>> Choice.history
<simple_history.manager.HistoryManager object at 0x1cc4290>
>>> Choice.history.all()
[<HistoricalChoice: Choice object as of 2010-10-25 18:05:30.160595>, <HistoricalChoice: Choice object as of 2010-10-25 18:05:12.183340>, <HistoricalChoice: Choice object as of 2010-10-25 18:04:59.047351>]CHANGES
1.2.3 (2013-04-22)
Fixed packaging bug: added admin template files to PyPI package
1.2.1 (2013-04-22)
Added tests
Added history view/revert feature in admin interface
Various fixes and improvements
Oct 22, 2010
Merged setup.py from Klaas van Schelven - Thanks!
Feb 21, 2010
Initial project creation, with changes to support ForeignKey relations.
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