2016-10-21 14:33:00 +03:00

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django-localized-fields
=======================
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``django-localized-fields`` is an implementation of a field class for Django models that allows the field's value to be set in multiple languages. It does this by utilizing the ``hstore`` type (PostgreSQL specific), which is available as ``models.HStoreField`` in Django 1.10.
Usage
-----
Basic usage
^^^^^^^^^^^
Declare fields on your model as ``LocalizedField``:
.. code-block:: python
from django.db import models
from localized_fields.fields import LocalizedField
class MyModel(models.Model):
title = LocalizedField()
During migration, the field type will be changed to ``hstore``. From now on you can store multi-language content in this field:
.. code-block:: python
new = MyModel()
new.title.en = 'english title'
new.title.nl = 'dutch title'
new.title.ro = 'romanian title'
new.save()
``django-localized-fields`` integrates with Django's i18n system, in order for certain languages to be available you have to correctly configure the ``LANGUAGES`` and ``LANGUAGE_CODE`` settings:
.. code-block:: python
LANGUAGE_CODE = 'en' # default language
LANGUAGEs = (
('en', 'English'),
('nl', 'Dutch'),
('ro', 'Romanian')
)
By changing the active language you can control which language is presented:
.. code-block:: python
from django.utils import translation
translation.activate('nl')
print(new.title) # prints 'dutch title'
translation.activate('en')
print(new.title) # prints 'english title'
Or get it in a specific language:
.. code-block:: python
print(new.title.get('en')) # prints 'english title'
print(new.title.get('ro')) # prints 'romanian title'
print(new.title.get()) # whatever language is the currently active one
You can also explicitly set a value in a certain language:
.. code-block:: python
new.title.set('en', 'other english title')
new.title.set('nl', 'other dutch title')
new.title.ro = 'other romanian title'
Constraints
^^^^^^^^^^^
By default, the following constraints apply to a ``LocalizedField``:
* Only the default language is ``required``. The other languages are optional and can be ``NULL``.
* If ``null=True`` is specified on the ``LocalizedField``, then none of the languages are required.
At the moment it is *not* possible to specifically instruct ``LocalizedField`` to mark certain languages as required or optional.
Other fields
^^^^^^^^^^^^
Besides ``LocalizedField``, there's also:
* ``LocalizedAutoSlugField``
Automatically creates a slug for every language from the specified field. Depends upon:
* django-autoslug
Currently only supports `populate_from`. Example usage:
.. code-block:: python
from django.db import models
from localized_fields.fields import (LocalizedField,
LocalizedAutoSlugField)
class MyModel(models.Model):
title = LocalizedField()
slug = LocalizedAutoSlugField(populate_from='title')
* ``LocalizedBleachField``
Automatically bleaches the content of the field.
* django-bleach
Example usage:
.. code-block:: python
from django.db import models
from localized_fields.fields import (LocalizedField,
LocalizedBleachField)
class MyModel(models.Model):
title = LocalizedField()
description = LocalizedBleachField()
Installation
------------
1. Install the package from PyPi:
.. code-block:: bash
$ pip install django-localized-fields
2. Add ``localized_fields`` to your ``INSTALLED_APPS``:
.. code-block:: bash
INSTALLED_APPS = [
....
'localized_fields'
]
You're good to go! Happy hacking!