Thanks to a comment on my blog: the below is null and void: the
request object can be retrieved directly from context: context
['request'].
On Jun 2, 2:55 pm, BluMarble <goo...@blu-marble.co.za> wrote:
> On Jun 1, 7:53 pm, "bax...@gretschpages.com" <mail.bax...@gmail.com>
> wrote:
>
> > I'm trying to write a template tag that accesses the user's
> > request.session. My problem is, I don't know how to get the request.
>
> > Googling around, I saw references to including
> > TEMPLATE_CONTEXT_PROCESSORS in settings, but I'm still not seeing the
> > request.
>
> > Help?
>
> Hi your best bet is to do the following - I used this for something
> else but you'll get the idea:
>
> from django.template import resolve_variable
> from django import template
> from django.template import Library, Node
>
> register = template.Library()
>
> class AlertNode(Node):
> def __init__(self, request):
> self.request = request
>
> def render(self, context):
> request = resolve_variable(self.request, context)
>
> # Do something with the session
> var = request.session.get('js_alert', None)
> if var:
> del request.session['js_alert']
> return str('<script type="text/javascript">alert("%s");</
> script>' % var)
> else:
> return ''
>
> @register.tag(name="get_js_alert")
> def get_js_alert(parser, token):
> try:
> tag_name, request = token.split_contents()
> except ValueError:
> raise template.TemplateSyntaxError, "%r tag requires exactly
> one argument" % token.contents[0]
>
> return AlertNode(request)
>
> # Usage: {% load js_tag %}{% get_js_alert request %}
>
> You now have acces to POST, GET and SESSION ect in your templatetag.
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