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From: Russell Keith-Magee <russ...@keith-magee.com>
To: <django-users@googlegroups.com>
Date: Sunday, October 23, 2011 4:06:08 PM GMT+0800
Subject: Re: How to filter arithmetic seires in loop?
On Sun, Oct 23, 2011 at 3:58 PM, Tsung-Hsien <jasoniem9...@gmail.com> wrote:
> Thanks your advice!
> However,using {% if forloop.counter % 4 == 1 %} shows problem that
> Exception Value:
> Could not parse the remainder: '%' from '%'
> Now, I refer
> http://stackoverflow.com/questions/1438486/how-to-use-math-remainder-in-django-template
> and change it to {%forloop.counter|add:"-1"|divisibleby:4%}, and it
> work!
My apologies -- I had a momentary lapse of sanity. The modulus
operator won't work in an if clause; the new divisibleby solution
you've provided is correct. An alternate (and very slightly faster)
way of saying it would be:
{% if forloop.counter0|divisibleby: 4 %}
This uses a counter that starts at 0, rather than one that starts at
1, removing the need to do the "add:-1"
Yours,
Russ Magee %-)
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