I've just written my first template tag (w/ django-1.3). The idea is to
produce the HTML for a UI component which can get embedded in other templates.
The top-level template is items.html (attached). My tag is item_html, defined
in collage_extras.py (also attached).
This works, but what I really want my render() function to do is render another
template (as opposed to embedding HTML in the python code). It's not clear how
to do this. You can't call render_to_response() from inside a tag. Or can you?
{% include "collage/header.html" %}
{% load collage_extras %}
{{num_items}} Items:
{% include "collage/footer.html" %}
from django import template
register = template.Library()
def do_item_html(parser, token):
try:
tag_name, item = token.split_contents()
except ValueError:
tag_name = token.contents.split()[0]
raise template.TemplateSyntaxError("%r tag requires a single argument" % tag_name)
return ItemHtmlNode(item)
class ItemHtmlNode(template.Node):
def __init__(self, item):
self.item = template.Variable(item)
def render(self, context):
my_item = self.item.resolve(context)
return '<div><div><img src="/static/img-icon.png"></div><div>%s<br>%s</div></div>' % (my_item.id,
my_item.title)
register.tag('item_html', do_item_html)
--
Roy Smith
[email protected]
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