Use a builder here instead of a default, $self doesn't exist yet when this is being executed: 

has 'Dbin'      => ( is        => 'rw',
                     isa       => 'Str',
                     default   => $self->{Dbase}.'/come/on/now',
                     lazy      => 1,
                     predicate => 'has_Dbin'
                   );

[download]

Getting used to just how Moose builds an object, as well as the method modifiers, might lead to loss of hair at times, but groking this leads to solid code design with objects. On the plus side, Moose formalizes things to some extent that many of us had to improvise in the bad days.

The answer to the question "Can we do this?" is always an emphatic "Yes!" Just give me enough time and money.

In reply to Re^5: Moose Attribute Default Dependency by boftx
in thread Moose Attribute Default Dependency by dpath2o

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