django-data-tools

A set of utilities and improvements for managing data (fixtures specifically) in Django.

Install

::

INSTALLED_APPS = (
    # ...
    'datatools',
)

Commands

dumpdata

An improved version of the ``manage.py dumpdata`` command:

* Adds a --limit option to specify the maximum number of objects per model to fetch.
* Adds a --sort option to specify ascending or descending order for serialization.
* Automatically follows the dependency graph for ForeignKeys and ManyToManyFields.

::

    # Retrieve the latest 10000 thread objects with all their required dependencies
    python manage.py dumpdata forums.thread --limit=10000 --sort=desc

Utilities
---------

RangeQuerySetWrapper

Efficient iteration over a large collection of database objects, using a standard range pattern on the primary key.

::

from datatools.query import RangeQuerySetWrapper

qs = RangeQuerySetWrapper(Model.objects.all(), limit=100000)
for obj in qs:
    print "Got %r!" % obj