Ah I was just doing that to prove it was working
This is the actual tag
from django import template
from django.conf import settings
from django.utils.html import escape
from band.models import Data
register = template.Library()
@register.simple_tag
def do_cost( name, avn, avd, *args, **kwargs ):
avn = kwargs['avn']
avd = kwargs['avd']
name = kwargs['name']
val_set = Data.objects.filter(prop = name).filter(date_period=avd)
avn = 7 #this line is just for testing
if avn >= 7:
for x in val_set:
val = x.full
else:
for x in val_set:
val = x.short
return val
From: django-users@googlegroups.com [mailto:django-users@googlegroups.com] On
Behalf Of Andréas Kühne
Sent: 22 August 2018 15:20
To: django-users@googlegroups.com
Subject: Re: template tag help please?
Wait a secound, you are doing some very strange things....
I didn't see this before.
You have defined the following:
@register.simple_tag
def do_cost( name, avn, avd, *args, **kwargs ):
avn = kwargs['avn']
avd = kwargs['avd']
name = kwargs['name']
return name
The method has 3 parameters that you are sending to it - name, avn and avd.
They correspond to the values sent to the method in order. So you don't need to
use the kwargs dictionary - it's unnecessary...
You could just write:
@register.simple_tag
def do_cost( name, avn, avd, *args, **kwargs ):
return name
Beacause you have sent the name to the method?
Regards,
Andréas
Den ons 22 aug. 2018 kl 16:09 skrev MikeKJ <mike.jo...@paston.co.uk>:
Thank you Andreas Kuhne, progress
So this {% load get_cost %}{% do_cost b.name avn avd %} was working quite
happily but for some reason is now complaining
Exception Type:
TemplateSyntaxError
Exception Value:
Caught KeyError while rendering: 'avn'
Exception Location claims to be get_cost.py in do_cost, line 10 which is
avn = kwargs['avn']
but the exception is in the template line {% load get_cost %}{% do_cost b.name
avn avd %}
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