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I tried to use [Joshua's](http://www.djangosnippets.org/users/joshua/) nice and very useful [getattr template filter (#38)](http://www.djangosnippets.org/snippets/38/), but ran into a few problems.
I used it on objects outside of my control (admin internals, coughcough) and on some of them the code didn't catch the resulting exceptions. So I improved the error handling a bit.
Furthermore, the code now also returns the *value of a callable* instead of the callable *itself* (last 4 lines).
Looking at my code though, it can certainly be improved further.
I wanted to have the possibility to use a wiki-like markup style in my flatpages for various purposes (embedding images, quoting, etc.)
After a few dead ends I came up with this, which is quite nice I think.
> It basically takes a named tag, loads the corresponding template, passes in all arguments, renders the template and replaces the named tag with the result.
*The markup looks like this:*
> [[example:value to pass|option1=somevalue option2=values can have spaces too! without having to put them in quotes option3=some other value]]
*This results in:*
* Filter tries to load wiki/wiki_example.html
* If it is loaded, it passes an WikiElement containing the value and the options to the template, renders it and replaces the tag with the rendered template
*In the "wiki/wiki_example.html" template you can use it like this:*
{{param.value}}
{{param.opts.option1}}
Or loop over param.opts.iteritems.
- template
- filter
- markup
- wiki
luckystarr has posted 2 snippets.