I'm trying to understand how to catch errors in Class::DBI. For clarity's sake, consider that I am trying to violate a unique constraint. Thus the DB will cause a call to _croak as described in the docs:

The _croak() method is passed an error message and in some
cases some extra information as described below. The default
behaviour is simply to call Carp::croak($message).

Applications that require custom behaviour should override
the _croak() method in their application base class (or
table classes for table-specific behaviour). For example:

  use Error;
  sub _croak {
     my ($self, $message, %info) = @_;
     # convert errors into exception objects
     # except for duplicate insert errors which we'll ignore
     Error->throw(-text => $message, %info)
           unless $message =~ /^Can't insert .* duplicate/;
     return;
  }
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What I'm missing (and my question is) how do I 'catch' these DB errors in my main code where I 'tried' to do the DB insert?

The DB insert looks like this:

... various Class::DBI stuff not included...

$entry = Contacts->create( \%hash );
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Nothing is too wonderful to be true
-- Michael Faraday