I just had this exact problem. Hopefully this is helpful to anyone else who
comes across this thread.
An empty list is falsey, so
mylist|selectattr('list')
should get what you're looking for, and
mylist|rejectattr('list')
would return elements that have an empty list.
On Tuesday, July 5, 2016 at 7:44:27 AM UTC-5, Mark Gibson wrote:
>
> Hi
>
> I'm trying to select a set of objects where an attribute (of type list) is
> not empty.
>
> mylist:
> - name: name1
> list: []
> - name: name2
> list:
> - item1
> - item2
>
>
> There seems to be no jinja2 test (in the documentation at least) that
> allows one to test on empty / notempty.
>
> I want to be able to do something like:
>
> mylist|selectattr( 'list', 'notempty' )
>
> Is there a nice Ansible/Jinja2 trick that I'm missing that can do what I
> want?
>
> Thanks
> Mark
>
>
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