On Jul 4, 12:01 pm, "David.D" <dengyuanzh...@gmail.com> wrote:
> i mean
> i have a model instance m, and m has a field fd.
> so i can wrote like this in template
> {{ m.fd }}
>
> but, when i got a string s = "fd"
>
> how could i do the same as above?
>
> thanks for any help...
There's no built-in way. A simple custom filter will do the job.
@register.filter
def field_from_string(instance, fieldname):
return getattr(instance, fieldname)
Now you can do:
{{ m|field_from_string:s }}
--
DR.
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