Proper INET and CIDR fields for Django running on PostgreSQL
Thomas Adamcik
552c1b582c
Get operators for postgres no matter what db we are running
|
il y a 14 ans | |
|---|---|---|
| netfields | il y a 13 ans | |
| tests | il y a 13 ans | |
| .gitignore | il y a 15 ans | |
| AUTHORS | il y a 15 ans | |
| LICENSE | il y a 15 ans | |
| README.rst | il y a 14 ans |
README.rst
Django PostgreSQL Netfields
===========================
This project is an attempt at making proper Django net related fields for
Django Currently the built in ``IPAddressField`` does not support IPv6 and uses
an inefficient ``HOST()`` cast in all lookups. Hopefully there experience from
this project can lead to a resolution of these issues upstream.
In addition to the basic ``IPAddressField`` replacement a ``CIDR`` and
``MACADDR`` field have been added. Furthermore a customer Manager allows for
access to all of PostgreSQL's INET operators.
Dependencies
------------
Current version of code is targeting Django 1.2 support, as this relies heavily
on ORM internals supporting multiple versions is especially tricky. ``IPy`` is
used for the same reasons. ``ipaddr`` is being considered, but the conversion
hinges on the related projects conversion to ``ipaddr``.
Getting started
---------------
Make sure ``netfields`` is in your ``PYTHONPATH``, then simply use the
following::
from netfields import InetAddressField, NetManager
class Example(models.Model):
inet = InetAddressField()
# ...
objects = NetManager()
The page also provides ``CidrAddressField`` and a ``MACAddressField``.
``NetManager`` is required for the extra lookups to be available. Lookups for
``INET`` and ``CIDR`` database types will be handled differently than when
running vanilla Django. All lookups are case-insensitive and text based
lookups are avoided whenever possible. In addition to Django's default lookup
types the following have been added.
* ``__net_contained``
* ``__net_contained_or_equal``
* ``__net_contains``
* ``__net_contains_or_equals``
These correspond with the operators from
http://www.postgresql.org/docs/8.3/interactive/functions-net.html
``netfields`` does not have to be in ``INSTALLED_APPS``.
Related Django bugs
-------------------
* 11442_ - Postgresql backend casts inet types to text, breaks IP operations and IPv6 lookups.
* 811_ - IPv6 address field support.
.. _11442: http://code.djangoproject.com/ticket/11442
.. _811: http://code.djangoproject.com/ticket/811
===========================
This project is an attempt at making proper Django net related fields for
Django Currently the built in ``IPAddressField`` does not support IPv6 and uses
an inefficient ``HOST()`` cast in all lookups. Hopefully there experience from
this project can lead to a resolution of these issues upstream.
In addition to the basic ``IPAddressField`` replacement a ``CIDR`` and
``MACADDR`` field have been added. Furthermore a customer Manager allows for
access to all of PostgreSQL's INET operators.
Dependencies
------------
Current version of code is targeting Django 1.2 support, as this relies heavily
on ORM internals supporting multiple versions is especially tricky. ``IPy`` is
used for the same reasons. ``ipaddr`` is being considered, but the conversion
hinges on the related projects conversion to ``ipaddr``.
Getting started
---------------
Make sure ``netfields`` is in your ``PYTHONPATH``, then simply use the
following::
from netfields import InetAddressField, NetManager
class Example(models.Model):
inet = InetAddressField()
# ...
objects = NetManager()
The page also provides ``CidrAddressField`` and a ``MACAddressField``.
``NetManager`` is required for the extra lookups to be available. Lookups for
``INET`` and ``CIDR`` database types will be handled differently than when
running vanilla Django. All lookups are case-insensitive and text based
lookups are avoided whenever possible. In addition to Django's default lookup
types the following have been added.
* ``__net_contained``
* ``__net_contained_or_equal``
* ``__net_contains``
* ``__net_contains_or_equals``
These correspond with the operators from
http://www.postgresql.org/docs/8.3/interactive/functions-net.html
``netfields`` does not have to be in ``INSTALLED_APPS``.
Related Django bugs
-------------------
* 11442_ - Postgresql backend casts inet types to text, breaks IP operations and IPv6 lookups.
* 811_ - IPv6 address field support.
.. _11442: http://code.djangoproject.com/ticket/11442
.. _811: http://code.djangoproject.com/ticket/811