On Thu, 01 Mar 2007 09:44:37 -0500 Ted Zlatanov <[EMAIL PROTECTED]> wrote:
TZ> On Wed, 28 Feb 2007 19:47:54 -0500 Jonathan Vanasco <[EMAIL PROTECTED]>
wrote:
JV> would it be possible to reserve a namespace within rose db objects
JV> for user use?
JV> i need to cache some calculated data in an object for use over
JV> multiple calls
TZ> You could use a TEMP column. I don't know if it can be used to store
TZ> arbitrary data, but I don't remember such a limitation when I looked
TZ> at the code. I hope I understood what you are asking.
Sorry, to clarify: those are not built-in to RDBO, you need something
like this in your base object class (John wrote this to help me a
while ago):
sub temp_columns
{
my($class) = shift;
my $columns = (@_ == 1 && ref $_[0] eq 'ARRAY') ? shift : [EMAIL PROTECTED];
Rose::Object::MakeMethods::Generic->make_methods
(
{ target_class => $class },
scalar => [ grep { !$class->can($_) } @$columns ],
);
}
sub Rose::DB::Object::Metadata::temp_columns
{
shift->class->temp_columns(@_);
}
Use with "temp_columns => [qw/a b c/]" in the metadata setup.
caveat: this just stores entries in the hash, so you need to make sure
TEMP columns don't interfere with regular ones. They are not columns
anyhow, just attributes, but I'm used to calling them TEMP columns
from the CDBI days...
Ted
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