The State of Django

Jacob Kaplan-Moss

PyCon, March 27, 2009http://jacobian.org/speaking/2009/state-of-django/

Happy five years!

Since PyCon 2008...

7,000

14,000

QSRFNFA

Merged

“Dude, we should totally have a big Django

meetup some time!”

! !

Developing reusable apps

James Bennett

PyCon Chicago, March 15, 2008

Django 0.96Over one year old

1.0

Unicodehttp://docs.djangoproject.com/en/dev/ref/unicode/

Getting help

Having trouble? We’d like to

help!

Try the FAQ – it’s got

answers to many common

questions.

Looking for specific

information? Try the Index,

Module Index or the detailed

table of contents.

Search for information in the

archives of the django-users

mailing list, or post a

question.

Ask a question in the

#django IRC channel, or

search the IRC logs to see if

its been asked before.

Django documentation

Everything you need to know about Django (and thensome).

First steps

OverviewSee what writing a database-driven

application with Django looks like.

InstallationGet Django installed on your computer.

Tutorial: Writing your firstDjango application

Part 1Start a project, create models and play

with the database API.

Part 2Explore the automatically-generated

admin site.

Part 3

Search

Search

Latest 1.0 0.96

All

Browse

Table of contents

General Index

Global Module Index

You are here:

Django v1.0 documentation

Django documentation

Last update:

September 12, 2008, noon (CDT)

Home Download Documentation Weblog Community Code

docs.djangoproject.com

48 languages

Signals

0.96

1.0

QSRF

Oracle

Pluggable file storagehttp://docs.djangoproject.com/env/dev/howto/custom-file-storage/

newforms

http://docs.djangoproject.com/en/dev/topics/forms/modelforms/

ModelForms

Formsetshttp://docs.djangoproject.com/en/dev/forms/formsets/

Session backendshttp://docs.djangoproject.com/en/dev/topics/http/sessions/

File uploads: less FAIL

autoescape

Databrowsehttp://docs.djangoproject.com/en/dev/ref/contrib/databrowse/

Databrowse

Reporters

Articles

John Doe, Jane Smith, Eric Jones, More !

Dog bites man, Man bites dog, More !

Databrowse

Home / Reporters / Jane Smith

Reporter: Jane Smith

ID 2

Name Jane Smith

Email jsmith@example.net

Appears in "reporter" in the following articles:

Dog bites man

GeoDjango

A world-class geographic web framework

django wiki mercurial docs presentations vmware (user: geo, pass: where2.0)

newforms-admin

JythonPyPy

IronPython*

et cetera

Django 1.1 betanow available

What’s new in 1.1?http://docs.djangoproject.com/en/dev/releases/1.1-alpha-1/

http://docs.djangoproject.com/en/dev/releases/1.1-beta-1/

ORM aggregationhttp://docs.djangoproject.com/en/dev/topics/db/aggregation/

>>> Book.objects.aggregate(...     Avg('price'),...     highest_price = Max('price'))

{'price_avg': 45.0, 'highest_price': 82.80}

>>> Author.objects.aggregate(Sum('book__price'))

{'book_price_sum': 442}

>>> books = Book.objects.annotate(Max('authors__age'))

>>> books[0].nameu'Python Web Development With Django'

>>> books[0].authors.all()[<Author: Jeffrey Forcier >, <Author: Paul Bissex>, <Author: Wesley J. Chun>]

>>> books[0].authors__age__max37.0

Publisher.objects.annotate(num_books=Count('book__id')) \                 .filter(num_books__gt=1) \                 .order_by('num_books')

http://docs.djangoproject.com/en/dev/topics/db/queries/#query-expressions

Query Expressions

>>> Poll.objects.update(votes = F('votes') + 1)

Test faster

Unmanaged models

class Person(models.Model):    ...

    class Meta:        managed = False

Proxy models

from django.contrib.auth import User

class EmotionalUser(User):    class Meta:        proxy = True

    def is_angry(self):        return self.username == 'hulk'

Deferred fields

>>> Story.objects.filter(...).defer('body')

Conditional View Processinghttp://docs.djangoproject.com/en/dev/topics/conditional-view-processing

def latest_entry(request):    return Entry.objects.aggregate(Max('published'))

@last_modified(latest_entry)def front_page(request):    ...

Admin

What’s next?

Django 1.1April 20ish

Please help!

GSoC

EuroDjangoCon

US DjangoCon ’09

1.2

Py3k

Thank you!Jacob Kaplan-Moss

<jacob@jacobian.org>

BoF: 2:30pm today