Looks like a default of []
triggers
https://github.com/puppetlabs/hiera-puppet/blob/master/lib/puppet/parser/functions/hiera_array.rb#L32
to think that the `.lookup` function did not get an answer.
Hiera and Hiera-puppet have to distinguish between empty/false/nil answers
sent by the backend due to missing data, or empty/false/nil answers
explicitly returned as the default value or found value. Having hiera just
return an empty answer when an answer is not found would probably not be
preferable, so nil could possibly be the "not found" value?
-Hunter
On Monday, April 2, 2012 5:03:37 AM UTC-7, pablo.f...@cscs.ch wrote:
>
> Hi,
>
> There is probably something stupid I am missing, but I just can't see
> it. I do:
>
> $iptables_open_ports_public = hiera_array ('iptables_open_ports_public',
> [])
>
> And I have not defined that in the hiera tree, so the default (an empty
> array) should be returned. But I get, instead:
>
> "Error 400 on SERVER: Could not find data item
> iptables_open_ports_public in any Hiera data file and no default supplied"
>
> Is there any special way to define an empty array as a parameter?
>
> Thanks!
> Pablo
>
>
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