On Thu, 3 Mar 2005, Cory Trese wrote:
> My major questions are:
>
> 1. How does a sub-class of HTML::Template construct itself? Should I
> over-ride 'new( )' or use something like 'make_new( )' to wrap 'new( )'
> or 'SUPER::new( )'.
package HTML::Template::Awesomer;
use base 'HTML::Template';
sub new {
my $pkg = shift;
my $self = $pkg->SUPER::new(@_);
return $self;
}
Of course you can insert your own code before and after the call to
SUPER::new() depending what you're trying to do.
> 2. What packages should my 'param( )' method be overridden in? More
> than HTML::Template?
In your sub-class of course. Something like:
sub param {
my $self = shift;
$self->SUPER::param(@_);
}
Of course you'll want to add code to implement your extension.
You should never have this line in a sub-class:
> package HTML::Template;
That's going to actually overwrite (not override) a subroutine in the
HTML::Template namespace.
Have you read Damian Conway's Object Oriented Perl book? I highly
recommend it for anyone serious about doing OO in Perl.
-sam
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