Django 1.3 beta 1 release notes¶
Welcome to Django 1.3 beta 1!
This is the second in a series of preview/development releases leading up to the eventual release of Django 1.3. This release is primarily targeted at developers who are interested in trying out new features and testing the Django codebase to help identify and resolve bugs prior to the final 1.3 release.
As such, this release is not intended for production use, and any such use is discouraged.
What’s new in Django 1.3 beta 1¶
Further tweaks to the staticfiles app¶
Django 1.3 ships with a new contrib app django.contrib.staticfiles
to help developers handle the static media files (images, CSS, JavaScript,
etc.) that are needed to render a complete web page.
The staticfiles
app ships with the ability to
automatically serve static files during development (if the DEBUG
setting is True
) when using the runserver
management command.
Based on feedback from the community this release adds two new options to the
runserver
command to modify this behavior:
--nostatic
: prevents therunserver
command from serving files completely.--insecure
: enables serving of static files even if running withDEBUG
set to False. (This is not recommended!)
See the staticfiles reference documentation for more details, or learn how to manage static files.
Translation comments¶
If you would like to give translators hints about a translatable string, you
can add a comment prefixed with the Translators
keyword on the line
preceding the string, e.g.:
def my_view(request):
# Translators: This message appears on the home page only
output = ugettext("Welcome to my site.")
The comment will appear in the resulting .po file and should also be displayed by most translation tools.
For more information, see Comments for translators.
Permissions for inactive users¶
If you provide a custom auth backend with supports_inactive_user
set to
True
, an inactive user model will check the backend for permissions.
This is useful for further centralizing the permission handling. See the
authentication docs for more details.
Backwards-incompatible changes in 1.3 alpha 2¶
Change to admin lookup filters¶
The Django admin has long had an undocumented “feature” allowing savvy users to manipulate the query string of changelist pages to filter the list of objects displayed. However, this also creates a security issue, as a staff user with sufficient knowledge of model structure could use this “feature” to gain access to information he or she would not normally have.
As a result, changelist filtering now explicitly validates all lookup
arguments in the query string, and permits only fields which are
directly on the model, or relations explicitly permitted by the
ModelAdmin
definition. If you were relying on this undocumented
feature, you will need to update your ModelAdmin
definitions to
whitelist the relations you choose to expose for filtering.
Introduction of STATIC_URL and STATIC_ROOT settings¶
The newly introduced staticfiles
app – which extends
Django’s abilities to handle static files for apps and projects – required the
additon of two new settings to refer to those files in templates and code,
especially in contrast to the MEDIA_URL
and MEDIA_ROOT
settings that refer to user-uploaded files.
Prior to 1.3 alpha 2 these settings were called STATICFILES_URL
and
STATICFILES_ROOT
to follow the naming scheme for app-centric settings.
Based on feedback from the community it became apparent that those settings
created confusion, especially given the fact that handling static files is also
desired outside the use of the optional staticfiles
app.
As a result, we took the following steps to rectify the issue:
- Two new global settings were added that will be used by, but are not limited to, the staticfiles app:
STATIC_ROOT
(formallySTATICFILES_ROOT
)STATIC_URL
(formallySTATICFILES_URL
)- The
django.contrib.staticfiles.templatetags.staticfiles.get_staticfiles_prefix
template tag was moved to Django’s core (django.templatetags.static
) and renamed toget_static_prefix
. - The
django.contrib.staticfiles.context_processors.staticfiles
context processor was moved to Django’s core (django.core.context_processors.static
) and renamed tostatic()
. - Paths in media definitions now uses
STATIC_URL
as the prefix if the value is not None, and falls back to the previously usedMEDIA_URL
setting otherwise.
Changes to the login methods of the admin¶
In previous version the admin app defined login methods in multiple locations and ignored the almost identical implementation in the already used auth app. A side effect of this duplication was the missing adoption of the changes made in r12634 to support a broader set of characters for usernames.
This release refactors the admin’s login mechanism to use a subclass of the
AuthenticationForm
instead of a manual
form validation. The previously undocumented method
'django.contrib.admin.sites.AdminSite.display_login_form'
has been removed
in favor of a new login_form
attribute.
Changes to USStateField
¶
The django.contrib.localflavor
application contains collections
of code relevant to specific countries or cultures. One such is
USStateField
, which provides a field for storing the two-letter postal
abbreviation of a U.S. state. This field has consistently caused problems,
however, because it is often used to store the state portion of a U.S postal
address, but not all “states” recognized by the U.S Postal Service are
actually states of the U.S. or even U.S. territory. Several
compromises over the list of choices resulted in some users feeling
the field supported too many locations, while others felt it supported
too few.
In Django 1.3 we’re taking a new approach to this problem, implemented as a pair of changes:
- The choice list for USStateField has changed. Previously, it consisted of the 50 U.S. states, the District of Columbia and U.S. overseas territories. As of Django 1.3 it includes all previous choices, plus the U.S. Armed Forces postal codes.
- A new model field,
django.contrib.localflavor.us.models.USPostalCodeField
, has been added which draws its choices from a list of all postal abbreviations recognized by the U.S Postal Service. This includes all abbreviations recognized by USStateField, plus three independent nations – the Federated States of Micronesia, the Republic of the Marshall Islands and the Republic of Palau – which are serviced under treaty by the U.S. postal system. A new form widget,django.contrib.localflavor.us.forms.USPSSelect
, is also available and provides the same set of choices.
Additionally, several finer-grained choice tuples are provided which
allow mixing and matching of subsets of the U.S. states and
territories, and other locations serviced by the U.S. postal
system. Consult the django.contrib.localflavor
documentation
for more details.
The change to USStateField is technically backwards-incompatible for users who expect this field to exclude Armed Forces locations. If you need to support U.S. mailing addresses without Armed Forces locations, see the list of choice tuples available in the localflavor documentation.
The Django 1.3 roadmap¶
Before the final Django 1.3 release, several other preview/development releases will be made available. The current schedule consists of at least the following:
- Week of January 24, 2011: First Django 1.3 release candidate. String freeze for translations.
- Week of January 31, 2011: Django 1.3 final release.
If necessary, additional beta or release-candidate packages will be issued prior to the final 1.3 release. Django 1.3 will be released approximately one week after the final release candidate.
What you can do to help¶
In order to provide a high-quality 1.3 release, we need your help. Although this beta release is, again, not intended for production use, you can help the Django team by trying out the beta codebase in a safe test environment and reporting any bugs or issues you encounter. The Django ticket tracker is the central place to search for open issues:
Please open new tickets if no existing ticket corresponds to a problem you’re running into.
Additionally, discussion of Django development, including progress toward the 1.3 release, takes place daily on the django-developers mailing list:
... and in the #django-dev
IRC channel on irc.freenode.net
. If you’re
interested in helping out with Django’s development, feel free to join the
discussions there.
Django’s online documentation also includes pointers on how to contribute to Django:
Contributions on any level – developing code, writing documentation or simply triaging tickets and helping to test proposed bugfixes – are always welcome and appreciated.