On Thu, Jun 25, 2009 at 1:52 PM, Daniele Procida
<dani...@apple-juice.co.uk>wrote:
>
> I created a simple_tag:
>
> def news_for_this_page(page):
> if page.entity_set.all(): # check page belongs to an entity first
> e = page.entity_set.all()[0] # first entity will be only one
> newslist = []
> for item in e.newsitem_set.all(): # get entity's news items
> newslist.append(item.headline) # add them to the list
> return newslist
> else:
> return "No news is good news"
>
> What this spits back into the page is:
>
> [u'Man bites dog', u'Dog bites man', u'Nixon resigns']
>
> so obviously I need to process that list, making it a <ul> and putting
> in the links before sending that to the template.
>
> To do this, I think I need my function to call another template to
> render it appropriately - is that correct?
>
> Are there any shortcuts in this process?
>
> For example, to use my template tag I use {% news_for_this_page entity
> %}. It would be neater to use something like {% news_for_this_page %},
> since entity will always be set.
>
Inclusion tags might help you out with the template idea, but generally for
variables like this I like to put them in context like this:
http://docs.djangoproject.com/en/dev/howto/custom-template-tags/#setting-a-variable-in-the-context
Those docs should help you out a lot. Also the default tags are pretty good
examples to look at:
http://code.djangoproject.com/browser/django/trunk/django/template/defaulttags.py
Hope that helps,
Michael
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