And there seems no simple way to extract the hash it contains.

Thanks for the suggestion, but what's worse is that I'm caching Rose::DB::Object,not Rose::DB.

same difference

http://search.cpan.org/grep?cpanid=JSIRACUSA&release=Rose-DB-Object-0.797&string=storable&i=1&n=1&C=0

http://cpansearch.perl.org/src/JSIRACUSA/Rose-DB-Object-0.797/t/db-object-helpers.t

 my $o = $class->new(id => 1)->load_or_save;
my $frozen = Storable::freeze($o->strip(strip_on_save_ok => 1));
my $thawed = Storable::thaw($frozen);
[download]

 

And there seems no simple way to extract the hash it contains.

http://cpansearch.perl.org/src/JSIRACUSA/Rose-DB-Object-0.797/lib/Rose/DB/Object/Cached.pm

sub remember
{
  my($self) = shift;

  my $class = ref $self;
  my $meta  = $self->meta;
  my $pk = join(PK_SEP, grep { defined } map { $self->$_() } $meta->pr
+imary_key_column_accessor_names);

  no strict 'refs';

  my $ttl_secs = $class->meta->cached_objects_expire_in || 0;
  my $loaded = $ttl_secs ? time : 0;

  ${"${class}::Objects_By_Id"}{$pk} = $self;

  if($ttl_secs)
  {
    ${"${class}::Objects_By_Id_Loaded"}{$pk} = $loaded;
  }

  my $accessor = $meta->column_accessor_method_names_hash;

  foreach my $cols ($self->meta->unique_keys_column_names)
  {
    no warnings;
    my $key_name  = join(UK_SEP, @$cols);
    my $key_value = join(UK_SEP, grep { defined($_) ? $_ : UNDEF } 
                         map { my $m = $accessor->{$_}; $self->$m() } 
+@$cols);

    ${"${class}::Objects_By_Key"}{$key_name}{$key_value} = $self;
    ${"${class}::Objects_Keys"}{$pk}{$key_name} = $key_value;

    if($ttl_secs)
    {
      ${"${class}::Objects_By_Key_Loaded"}{$key_name}{$key_value} = $l
+oaded;
    }
  }
};
[download]

The serilization works by hooks, which connects and fetches data from the db .

I'm worried of one thing:

Will it make caching the data nonsense since whether or not it's in cache , db connection is involved any way.