Graceful Exits

Use and abuse of the “with” programmatic statement to make your Django template code less mad.

Following on from Simon Willison’s recent post about Django’s ORM, I’ve found both the lazy evaluation and chaining properties of Django’s querysets to be really useful quite deep within Django’s own view-layer framework.
Django has its own library for building forms, currently called newforms (to distinguish it from the old library, deprecated but left around for [...]

The LAMP-stack community frequently shows their disdain for foreign and primary keys in databases, and sometimes with reason borne of experience. MySQL historically has been little more than a nice language for comparing a set of unrelated spreadsheets, so referential integrity has had to happen at the application layer or not at all. As such, [...]

I’ve built something, just in time for me to crowbar it awkwardly into conversations at OKCon.
Matthew Somerville is well known for his accessible takes on rubbish websites: most useful is Traintimes, a layer on top of one of the equally poor commercial British rail sites; most notorious is Accessible Odeon, a fixing of the Odeon [...]

Imagine you have a Drupal site: I have several, so that’s easy for me. Say you’ve got an index aggregating lots of your content in a listing, and it spans lots of pages. It’s probably a view created with the views module, slicing through your content in a special way.
Drupal has a core paging module [...]

Steve compares “graceful degradation” with “progressive enhancement.” Mostly he takes issue (rightly) with the rhetorical spin that the former applies to the idea of building a website. But I think you can compare them with each other as if they were two different types of crowbar instead: two ways of prising open the task in [...]

While Picnik gradually converts the functionality of desktop image processing software into online tools (in the hope, presumably, of being bought up by one of the big players), Flash has found other, more piecemeal uses in augmenting the image and font functionality of your average browser. Hot on the heels of sIFR, which replaces text [...]

Since listening to Garrett Coakley speak at the first Geek Night on the topic of Drupal, I’ve been sniffing round that open-source CMS. He kindly came to speak to us again, and very inspiring it was too. We’re now having a deeper look at it, seeing what it can do, what are its strengths and [...]

Mark Mandel wrote his own version of Coldfusion’s XmlTransform() function, using the underlying Java transform classes. Although one of his annoyances—that XmlTransform() won’t take any parameters—has been solved in CFMX7, XmlTransform() is nonetheless a slow operation, as the transform engine has to be cranked up, the XSL compiled, the transform effected and then everything garbage-collected, [...]

Simon makes the case for disambiguated URLs. He’s right, largely. I would say as a proviso, though, that URLs need to be hackable by the developer as well as by the user. The internal spaghetti that translates URLs to files in Django and Ruby on Rails is an initial barrier to developing with those systems, [...]