In case modeltranslation was installed in an existing project and you have specified to translate fields of models which are already synced to the database, you have to update your database schema (see :ref:`db-fields`).
Unfortunately the newly added translation fields on the model will be empty
then, and your templates will show the translated value of the fields (see
:ref:`Rule 1 <rules>`) which will be empty in this case. To correctly initialize
the default translation field you can use the
$ python manage.py update_translation_fields
Taken the news example used throughout the documentation this command will copy
the value from the news object's
title field to the default translation
title_de. It only does so if the default translation field is empty
otherwise nothing is copied.
Unless you configured modeltranslation to
:ref:`override the default language <settings-modeltranslation_default_language>`
the command will examine your
settings.LANGUAGES variable and the first
language declared there will be used as the default language.
All translated models (as specified in the translation files) from all apps will be populated with initial data.
.. versionadded:: 0.4
$ python manage.py sync_translation_fields
This command compares the database and translated models definitions (finding new translation
fields) and provides SQL statements to alter tables. You should run this command after adding
a new language to your
settings.LANGUAGES or a new field to the
a registered model.
However, if you are using South in your project, in most cases it's recommended to use migration
sync_translation_fields. See :ref:`db-fields` for detailed info and use cases.
.. versionadded:: 0.7
An extended version of Django's original
loaddata command which adds an optional
populate keyword. If the keyword is specified, the normal loading command will be
run under the selected auto-population modes.
By default no auto-population is performed.
$ python manage.py loaddata --populate=all fixtures.json
Allowed modes are listed :ref:`here <auto-population-modes>`. To choose
(turn off auto-population) specify
$ python manage.py loaddata --populate=false fixtures.json $ python manage.py loaddata --populate=0 fixtures.json
populate is not specified, the current auto-population mode is used. Current means
the one set by :ref:`settings <settings-modeltranslation_auto_populate>`.
loaddata command version can override the nasty habit of changing locale to
en-us. By default, it will retain the proper locale. To get the old behaviour back, set