On Dec 6, 2007 1:43 PM, JLathem <[EMAIL PROTECTED]> wrote:
>
> I have a template that extends another. Each template have variables
> in them. When the variable in the parent template changes the HTML is
> not updated. That is to say, a variable in the parent page is set to
> X I view the page for the first time and I see X. The vale of the
> variable changes to Y. I view the page and I see X. I am not using
> any Django caching libraries and I clear my browser cache in between
> invocations of the page. I am using Apache, Mod_Python, and trunk of
> the Django SVN. Below is a small example that demonstrates what I am
> talking about.
>
> ------------urls.py (snippet)------------
> (r'^test/$', 'django.views.generic.simple.direct_to_template',
> {'extra_context':{"var":datetime.datetime.now(),
> "var2":datetime.datetime.now().second}, 'template':'test2.html'}),
>
> ------------test1.html------------
> {{var2}}|{%block rep%}{%endblock%}
>
> ------------test2.html------------
> {%extends "test1.html"%}{%block rep%}{{var}}{%endblock%}
>
>
> Is this problem caused by the caching of parsed templates? Should
> parent pages not contain variables? Thanks for any help you guys can
> give me.
>
This has nothing to do with caching. The code in your urls.py that sets
var and var2 is executed only once, when urls.py is first imported. This
code does not get re-executed every time urls.py is consulted for url
matching. This is just how Python works. Note as described here:
http://www.djangoproject.com/documentation/generic_views/
in the description of extra_context, the values you specify may be
functions. These functions are then evaluated just before they are passed
to the template. This is the approach you need to use for passing current
time information.
Karen
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