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.jones@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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