On May 23, 5:37 am, stevedegrace <degr...@gmail.com> wrote:
> I developed a custom tag to look up the country of a certain IP
> address using an IP to country database. It's sort of rough and ready,
> but it should work. The idea is that you read the comment.ip_address,
> feed it to the {% country %} tag, which then spits out the two letter
> country code. The interesting thing is that the tag works once and
> only once per page load if it has to render a variable. All subsequent
> calls raise template.VariableDoesNotExist in the code below.
>
> The interesting thing is that if you strip out the ability to
> recognize an IP as a string and make it just render variables, and you
> bind self.ip as a Variable object in the __init__ method and then try
> to call its render method in the CountryNode's render method, it
> actually raises AttributeError and claims that Variable object has no
> attribute render. Weird! FYI, I'm using Django 1.2. Anyone have any
> thoughts about what the heck is going on?
Avoid rebinding self.ip in the render method and it should work just
fine.
> Here's the Python code:
(snip imports)
> class CountryNode(template.Node):
> def __init__(self, ip):
> self.ip = ip
>
> def render(self, context):
> if self.ip[0] in '\'"':
> self.ip = self.ip.strip('\'"')
don't rebind self.ip here.
> else:
> try:
> self.ip = Variable(self.ip).resolve(context)
don't rebind it here neither
You want to work on local variable, definitly.
HTH
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