Thanks,
It appears to be something internal to the hiera function, so I'll have to go 
digging in there to find out what's going on.

Cheers

On 14/06/2012, at 1:06 AM, Wolf Noble wrote:

> I had some issues with using boolean logic with data being fed to me by 
> hiera. I went for a slightly hacky option of:
> 
> might help you, might be a BadIdea(™)
> 
> (untested)
> 
> 
> class foo::params{
> bool_to_be_tempname = hiera('some_TorF_key_as_a_string')
>  case bool_to_be_tempname {
>    [tT][rR][uU][eE]: {
>      bool_to_be = true
>    }
>    default: {
>      bool_to_be = false
>    }
>  }
> }
> 
> 
> On Jun 13, 2012, at 7:40 AM, Michael Knox wrote:
> 
>> Hi,
>> I've been moving from extlookup to hiera, and it's generally gone fairly 
>> smoothly, but I've run into a problem with one of our defines ...
>> 
>> I get this error:
>> err: Could not retrieve catalog from remote server: Error 400 on SERVER: 
>> can't convert Array into String at ...
>> 
>> The define uses an exec to install Perl CPAN modules and sets log output 
>> based on a hiera lookup.
>> exec{"cpan_load_${title}":
>>  < cut …>
>>   logoutput   => hiera('cpan_logoutput'),
>> }
>> 
>> If I remove that line, everything runs through fine.
>> 
>> The yaml for hiera:
>> ---
>> cpan_logoutput: true
>> 
>> Any ideas on what could be triggering this error?
>> 
>> 
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