On Mon, 2007-03-26 at 11:17 +0200, Arvin Schnell wrote: > On Sat, Mar 24, 2007 at 06:42:08AM -0000, SmileyChris wrote: > > > > For a while I've been thinking that it would be nice to have a tag so > > you could re-use an expression in a template. > > I did one up and put it on http://www.djangosnippets.org/snippets/132/ > > > > Is this useful enough for core? > > I would like to see a tag like that. The fact that snippet #9 > and #124 deal with the same problem shows the people need/want > it.
Snippet #9 is quite different. It's providing arbitrary expression computation, which is out of scope for the core templating language, but is a useful third-party add-on for some people. Limodou been maintaining that for quite a while now. Chris's snippet #132 looks a bit nicer than #124. The "ifvalue" construction in #124 looks like it's trying to do two or three things at once. If I wanted that, I'd use Perl. I'm personally a bit indifferent (which is not the same as "against" before anybody gets riled up) to the arguments about "saving typing", since all editors have decent auto-complete these days and it's just a slightly longer name if you don't have aliasing. However, on a related topic, it's easy when writing things like object.person.count to create repetitive queries (there's no reuse of that queryset if you type the same thing later). So I was thinking in idle moments today about how possible it would be to add transparent caching to templates. It doesn't seem to be impossible, although I need to sit down with a pen and paper and scratch my head a bit more to work out the details (for example, you need to have a way to mark some tags/filters as volatile so that something like the "random" filter doesn't behave identically to the hypothetical "always the same" filter). Regards, Malcolm --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django developers" group. To post to this group, send email to django-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-developers?hl=en -~----------~----~----~----~------~----~------~--~---
