Try using custom tags
Create a folder called "templatetags" in your application folder, in
there create two files
__init__.py
customtags.py # this will have your custom tags/filters, please
note it can be any name.
Open your customtags.py file and drop the following lines and save.
from django.template import Library
register = Library()
@register.filter
def running_total(fine_list):
return sum(d.get('fine_sum') for d in fine_list
In your template call the customtags file like this
{% load customtags %}
i guess by this time you have a list of dict that you passed from your
view lets say its called "fines"
{% for fine in fines %}
Display your fine items inside this loop
{% endfor %}
outside the loop call the customtag like this
<b> {{ fines.list|running_total }} </b>
It works for me.
Paul.
On Nov 9, 12:09 am, Knut Ivar Nesheim <[email protected]> wrote:
> You need to sum the fines before you enter the templates.
>
> This can be done either in your view like this:
> total_fines = sum([item.fine for item in items])
>
> Or you can do it in the db using the 'Sum' aggregate,
> seehttp://docs.djangoproject.com/en/dev/ref/models/querysets/#sum
>
> Regards
> Knut
>
> On Sun, Nov 7, 2010 at 12:32 AM, Michael Sprayberry
>
>
>
>
>
>
>
> <[email protected]> wrote:
>
> > Hello,
> > I am not sure if this is what you are looking for but you can use a
> > forloop.counter (index to 1) or a forloop.counter0 (index at 0) from within
> > the template {% for loop %}
>
> > Michael
>
> > Hi,
> > In a django template I have a for loop that display (item, fine). I
> > would like to compute the total fine value at the end of the for loop.
> > Is it possible to compute the total in the template? How can I do it
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Django users" group.
> > To post to this group, send email to [email protected].
> > To unsubscribe from this group, send email to
> > [email protected].
> > For more options, visit this group
> > athttp://groups.google.com/group/django-users?hl=en.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Django users" group.
> > To post to this group, send email to [email protected].
> > To unsubscribe from this group, send email to
> > [email protected].
> > For more options, visit this group
> > athttp://groups.google.com/group/django-users?hl=en.
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en.
