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;
  }


##</code><code>##

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

$entry = Contacts->create( \%hash );