Hi!
I've got custom template tag 'set_title' and can't get it work because
render() method isn't called during page render.
I use the tag in template 'traff/all_by_days.html':
{% extends "traff/all_base.html" %}
{% load traff_tags %}
{% set_title "The title" %}
.....
When I call render_to_response() Django creates NewTitleNode object
but doesn't use it for rendering (I can see "in init" message but not
"in render".)
What I'm doing wrong?
Here is my module with custom tag:
#traff_tags.py
from django import template
register = template.Library()
@register.tag()
def set_title(parser, token):
try:
# split_contents() knows not to split quoted strings.
tag_name, format_string = token.split_contents()
except ValueError:
raise template.TemplateSyntaxError, "%r tag requires a single
argument" % token.contents.split()[0]
if not (format_string[0] == format_string[-1] and format_string[0]
in ('"', "'")):
raise template.TemplateSyntaxError, "%r tag's argument should
be in quotes" % tag_name
return NewTitleNode(format_string[1:-1])
class NewTitleNode(template.Node):
def __init__(self, format_string):
self.format_string = format_string
print "in init"
def render(self, context):
context['page_title'] = self.format_string
print "in render"
return ''
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