lib/DBIx/Class/CDBICompat/Copy.pm

   1 package # hide from PAUSE
   2     DBIx::Class::CDBICompat::Copy;
   3
   4 use strict;
   5 use warnings;
   6
   7 use Carp;
   8
   9 =head1 NAME
  10
  11 DBIx::Class::CDBICompat::Copy - Emulates Class::DBI->copy($new_id)
  12
  13 =head1 SYNOPSIS
  14
  15 See DBIx::Class::CDBICompat for usage directions.
  16
  17 =head1 DESCRIPTION
  18
  19 Emulates C<<Class::DBI->copy($new_id)>>.
  20
  21 =cut
  22
  23
  24 # CDBI's copy will take an id in addition to a hash ref.
  25 sub copy {
  26     my($self, $arg) = @_;
  27     return $self->next::method($arg) if ref $arg;
  28
  29     my @primary_columns = $self->primary_columns;
  30     croak("Need hash-ref to edit copied column values")
  31         if @primary_columns > 1;
  32
  33     return $self->next::method({ $primary_columns[0] => $arg });
  34 }
  35
  36 1;