Ma.gnolia: Bookmarks in Django

GenericForeignKeys with Less Queries

rossp — Wed, 13 Aug 2008 21:57:44 PDT

Horst Gutmann from Austria has published this fantastic blog post that gives a great performance boost to Django's [generic relationships](http://www.djangoproject.com/documentation/contenttypes/). In a situation where you have an 'Item' table that has a generic relationship to three sub-tables (eg `BlogPost`, `Photo`, `Link`) when you display details from the sub-tables in a for loop there will be n+1 queries - one query for every item shown. Horst's trick is to first fetch the content-type ID's in one query, then use one query for each subtable - so 4 queries for the above example, regardless of the number of separate `Link` or `BlogPost` items you actually have. This should do a marvellous job for most *tumblog* style websites, although I imagine if you had a massive number of items the memory usage would probably spike quite high and you'd be better off having duplicate database queries.

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Tags: django, generic relations, programming

Django 1.0 alpha 2 released!

robhudson — Sat, 09 Aug 2008 09:41:10 PDT

Django 1.0 alpha 2 was released and contains some nice updates like GeoDjango, Jython compatability, and pluggable file storage. This is the last alpha before the first beta comes out on August 14th. I'm super excited to see 1.0 land.

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Tags: django

Easily packaging and distributing Django apps with setuptools and easy_install

rossp — Thu, 07 Aug 2008 20:03:15 PDT

This fantastic blog posts shows how easy it is to list your Django applications in Pypi, a Python package registry. The major advantage to this is that future users of your software can just type `easy_install mycoolpackage` and have your software installed rather than having to download with SVN, move files to the `PYTHONPATH`, find out why it hasn't worked, etc.

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Tags: django, python, easy_install, setuptools, distribution, software, applications

Minimalism

garlinii — Mon, 04 Aug 2008 16:22:40 PDT

Will Larson's blog about programming and other things.

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Tags: django, patterns

django-assets - Media Asset management for Django

rossp — Tue, 29 Jul 2008 00:11:23 PDT

This looks like a very useful application for managing Javascript & CSS files in Django projects. It can combine and compress JS & CSS files either manually (via command line) or automatically (when a user hits your site and one of the files has been changed). A few sites I'm working on currently include multiple JS files to do their job, this should let me minimise that. It's just a pity the source code is only available via bzr - since just about every other Django application uses svn it's often nice to keep the status quo. It also removes the ability for other application authors to refer to it via svn:externals. Oh well.

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Tags: django, programming, python, javascript, css

Moving to newforms-admin

cyberdelia — Fri, 25 Jul 2008 03:56:16 PDT

A little howto.

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Tags: django, code, nfa

Django 1.0 Alpha Released

rossp — Tue, 22 Jul 2008 18:47:57 PDT

Django, my web development framework of choice, has reached Alpha 1.0. There's a bunch of [Backwards Incompatible Changes](http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges) to the API which will require changes to your projects, but the codebase should be pretty stable from here to 1.0. The biggest changes to this from the last official release are 'Unicode everywhere', a new and more powerful admin module powered by newforms, an updated database ORM that's more efficient, and automatic escaping in templates to help reduce the risk of cross-site scripting attacks. 1.0 should be released with a party at DjangoConf 2008 on September 2nd - I look forward to it (Although I won't be at DjangoConf, unfortunately). Great work to everybody involved!

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Tags: django, release, programming, python

Django Middleware Example

garlinii — Sat, 19 Jul 2008 16:57:22 PDT

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Tags: django

Three awesome Django tips - Officially Lucky, a blog by Clint Ecker

hellp — Sun, 13 Jul 2008 13:47:21 PDT

by far the one tip that s revolutionized my django projects is this post by rob hudson django and relativity my default django settings file has chang

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Tags: django, python, webdev, gmail, tips

mysql_cluster

robhudson — Tue, 08 Jul 2008 08:11:15 PDT

This database backend enables the user of master/slave databases nicely. It includes middleware to send POST requests to the master and most GET requests to the slaves effectively making database writes hit the master and database reads pull from the slaves. It also has nice controls to override this default POST/GET switching at the view level and even at the Python coding level. Overall the impression seems very well done.

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Tags: django, database, replication, master-slave, python

Django snippets: Client-side django template with jQuery

robhudson — Sat, 05 Jul 2008 10:36:42 PDT

A simple snippet that extends the regular expression syntax of the jQuery Template plugin to support Django style templates in jQuery.

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Tags: django, jquery

mallipeddi's django-yslow at master — GitHub

robhudson — Thu, 26 Jun 2008 16:45:10 PDT

A very nice Django app following the YSlow recommended best practices for optimizing your website. It includes Django management utilities to minimize and concatenate CSS/JS, version it for cache busting, and upload to S3 and set appropriate expiry and content-encoding headers.

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Tags: django, yslow, optimization, css, javascript, deployment

django-fireeagle - Google Code

leland — Wed, 25 Jun 2008 14:36:18 PDT

fireeagle implementation for django

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Tags: fireeagle, django, python, code

Django code_swarm on Vimeo

robhudson — Tue, 24 Jun 2008 12:14:07 PDT

Visualization of Django commit history. I especially liked the near end when the queryset refactor branch landed on trunk and results in a firework like display, then just moments later a couple more fireworks as the other branches merge with trunk. See blog post for more info (http://oebfare.com/blog/2008/jun/24/django-code_swarm/) The song is "Minor Swing" by Django Reinhardt, it only felt right :)

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Tags: django, video, swarm, source control

LJWorld.com / New foundation for Django

robhudson — Tue, 17 Jun 2008 09:30:52 PDT

This is great news for Django and all contributors involved. Django deserves its success. Here's to a great future of Django!

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Tags: django, foundation

Jinja Template Engine

hellp — Mon, 09 Jun 2008 13:37:51 PDT

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Tags: python, templating, jinja, django, genshi

django-ae-utils - Google Code

robhudson — Fri, 30 May 2008 14:50:40 PDT

Utilities to replace Django's built-in auth and session functionality to use Google App Engine's and Big Table.

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Tags: django, google, gae

django-compress - Google Code

robhudson — Thu, 29 May 2008 16:54:36 PDT

An app with management command to concatenate and compress Javascript and CSS files. It also handles cache busting by appending a date string. I've done this manually with Makefiles but this looks more integrated and easy.

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Tags: django, css, javascript, web