foreach my $rel (@rels) {
next unless $item->{$rel} && ref $item->{$rel} eq "ARRAY";
- my $parent = $self->find(map {{$_=>$item->{$_}} } @pks)
+ my $parent = $self->find({map { $_ => $item->{$_} } @pks})
|| $self->throw_exception('Cannot find the relating object.');
my $child = $parent->$rel;