Well, I am embarrassed to admin that this issue was 100% user error.

I recently set up a dev and production server and copied everything
from the old production server to the two new servers.

I was testing the search results page on dev, that's the page that
generates the links to the pages that I'm having issue with (they
appear in a pop up, BTW). While the search results page was on dev the
actual page that was having the age issue was on production. So as I
edited the templates for the age pages on dev it was not updating
production so that's why i couldn't get the simple "if" statements to
work. I had full absolute URLS to the age pages, they've been changed
to relative URLS to prevent this from happening.

There is, however, a bright side to my ignorance.  The suggestions to
update the template tag filter were right on. I use this filter a lot
so it makes more since to have a built in fail safe rather than
checking in the templates each time.

Thanks a bunch,

Dummy

On May 12, 12:46 pm, Karen Tracey <kmtra...@gmail.com> wrote:
> On Wed, May 12, 2010 at 1:06 PM, Nick <nickt...@gmail.com> wrote:
> > I am using a custom template tag called calculate age to produce an
> > age in numbers based on a filter for a template tag.
>
> > Here is the tag:
>
> > def age(bday, d=None):
> >    if d is None:
> >        d = datetime.datetime.now()
> >    return (d.year - bday.year) - int((d.month, d.day) < (bday.month,
> > bday.day))
>
> > register.filter('age', age)
>
> > here is how it is used in a template:
>
> > {{ entry.DOB|age }} # that produces an age
>
> > Here is the problem, not all of the entries in my DB have a date of
> > birth (henceforth known as DOB).
>
> > This raises and error.
>
> [snip remainder]
>
> Why not just handle it in the age filter itself:
>
> def age(bday, d=None):
>    if not bday:
>       return 'N/A'
>    if d is None:
>        d = datetime.datetime.now()
> ... remainder of filter ...
>
> ?
>
> Karen
> --http://tracey.org/kmt/
>
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