Disclaimer: I'm not the world's greatest programmer, so there may be better ways to do this, but it works for me (feel free to offer your improvements, though!).
Basically, this will pad an integer with leading zeros and return a string representation. User it like this:
{% forloop.counter|leading_zeros:"5" %}
...where "5" is the number of desired digits. In this case, if it was the 12th time through the forloop, the filter would return "00012".
Why do this? Either for alignment, such as in tables, or for aesthetics -- for an example, see [Shaun Inman's comment section](http://shauninman.com/archive/2007/11/16/mobilesafari_view_source).
The {% widthratio %} template tag is under appreciated! Here, it's combined with CSS to create a bar graphic for the results of an election (this example comes from [this page](http://flickr.com/photos/postneo/405239750/in/photostream/), but has been modified slightly for simplicity's sake).
The widthratio tag can be used to create all sorts of graphs and charts, as well as things like tag clouds. Here, we pass it the number of votes for a candidate, the total number of votes in the election, and the integer 190, which is the width, in pixels, of a "full" bar on the bar graph. In other words, 100% = 190 pixels.
It works great!
- template
- templatetag
- widthratio
- graph
- infographic
This is just a very short (and mostly useless on it's own) example of how the built in slugify filter can be used in a Python script to generate slugs. It was pulled from a script I've written to pull in items from Upcoming.org's API.
I post it because "sunturi" posted [Snippet #29](http://www.djangosnippets.org/snippets/29/), which duplicates the functionality of the built-in slugify filter. In the comments of that snippet, santuri (and others) seem to believe that template filters can only be used within templates. This is incorrect, and I think it's important people understand they can be used elsewhere.
sunturi's snippet does remove prepositions from values before slugifying them, so if you need that, his code will work work. But if all you need is slugification, the built-in slugify filter will work fine -- in a Python script, as well as in a template.
- template
- filter
- django
- slug
- built-in