natxo has asked for the wisdom of the Perl Monks concerning the following question:

hi, using the wmware Perl sdk I have this variable $var->{'config.datastoreUrl'} that when dumped looks like this: 
$VAR1 = [
          bless( {
                   'name' => 'Name',
                   'url' => '/vmfs/volumes/guidvalue'
                 }, 'VirtualMachineConfigInfoDatastoreUrlPair' )
        ];
$VAR2 = '
';

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I would like to get the value of 'name' and 'url', but I do not get the right syntax. Could you advise on how to do it? Thanks!

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Re: help on dereferencing structure
by LanX (Saint) on Sep 10, 2014 at 19:43 UTC
    Its an array holding one object, which is a blessed hash.

    A "dirty" way to do it should be

    $var->{'config.datastoreUrl'}[0]{name}

    But since it's an object you should rather use a getter from its class VirtualMachineConfigInfoDatastoreUrlPair

    Something like (speculating about the right method)

    $var->{'config.datastoreUrl'}[0]->get_name()

    Cheers Rolf

    (addicted to the Perl Programming Language and ☆☆☆☆ :)

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Re: help on dereferencing structure
by NetWallah (Canon) on Sep 10, 2014 at 23:43 UTC
    I would write this as: (UNTESTED) 
    for my $datastore (@{ $var->{'config.datastoreUrl'} }){
   print $datastore->{name}, " ", $datastore->{url},"\n";
}

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    But a more official access method would be: 
    # Assumes you have a $vm object.
my $datastores = Vim::get_views(mo_ref_array => $vm->{'datastore'}, 
                           properties => ['name','url']);
foreach (@$datastores) {
     print "  " . $_->{'name'} . "\n";
}

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            "You're only given one little spark of madness. You mustn't lose it."         - Robin Williams

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Re: help on dereferencing structure
by Anonymous Monk on Sep 11, 2014 at 02:15 UTC
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