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Description:

djangodatapurge 0.0.2

Django Datapurge
Simple app to help purging old data like sesions, nonces, logs etc..
It’s like django-admin.py clearsessions command but gives you
possibility to purge anything. Simpliest way to use datapurge is to
run management command (manually or via cron):
python manage.py purge
It’s easy to integrate datapurge with celery or kronos. Just
wrap datapurge.actions.purge function with code corresponding to
your task backend and run it the way you want.

Requirements

Python (2.6, 2.7, 3.4, 3.5)
Django>=1.3.7

Installation
Install from PyPI using pip:
pip install django-datapurge
Or clone this repo:
git clone git@github.com:swistakm/django-datapurge.git
Add 'datapurge' to your INSTALLED_APPS setting.
INSTALLED_APPS = (
...
'datapurge',
)

Configuration
Add DATAPURGE_MODELS to your settings file and specify which models
should be purged:
DATAPURGE_MODELS = {
'app_name.ModelName1': {
# policy settings
...
},
'app_name.ModelName2': {
...
},
}

Available purge policies
There are a few available policies for your use. Use what you find most
convienient. Policy is guessed from set parameters provided.

ExpireFieldPolicy
Deletes all objects which expire_field datetime is older than
timezone.now().
Parameters:

'expire_field' - name of datetime field holding expiration date

Example:
DATAPURGE_MODELS = {
"sessions.Session": {
"expire_field": "expire_date",
}
}

LifetimePolicy
Deletes all objects which are older than specified lifetime
Parameters:

'lifetime' - timedelta object specifying maximum lifetime of
object
'created_field' - name of datetime field holding object creation
time

Example:
from timezone import timedelta

DATAPURGE_MODELS = {
"oauth_provider.Nonce": {
"lifetime": timedelta(seconds=300),
"created_field": "timestamp",
}

CallablePolicy
Deletes all objects from query returned by provided callable
Parameters:

'callable' - function accepting model class and returning
QuerySet

Example:
DATAPURGE_MODELS = {
"some_app.Log": {
"callable": lambda model: model.objects.all(),
}