Catalyst::Model::Proxy(U3s)er Contributed Perl DocumentatCiaotnalyst::Model::Proxy(3)



NNAAMMEE
       Catalyst::Model::Proxy - Proxy Model Class

SSYYNNOOPPSSIISS
               # a sample use with C<Catalyst::Model::DBI::SQL::Library>

               # lib/MyApp/Model/DBI/SQL/Library/MyDB.pm
               package MyApp::Model::DBI::SQL::Library::MyDB;

               use base 'Catalyst::Model::DBI::SQL::Library';

               __PACKAGE__->config(
                       dsn           => 'dbi:Pg:dbname=myapp',
                       password      => '',
                       user          => 'postgres',
                       options       => { AutoCommit => 1 },
               );

               1;

               # lib/MyApp/Model/Other.pm
               package MyApp::Model::Other;

               use base 'Catalyst::Model::Proxy';

               __PACKAGE__->config(
                       target_class => 'DBI::SQL::Library::MyDB',
                       subroutines => [ qw ( dbh load ) ]
               );

               # get access to shared resources via proxy mechanism
               sub something {
                       my $self = shift;
                       my $sql = $self->load('something.sql'); #located under root/sql
                       my $query = $sql->retr ( 'query' );
                       my $dbh = $self->dbh;
                       # ... do some stuff with $dbh
                       $dbh->do ( $query );
               }

               # back in the controller

               # lib/MyApp/Controller/Other.pm
               package MyApp::Controller::Other;

               use base 'Catalyst::Controller';

               my $model = $c->model('Other');
               $model->something;

DDEESSCCRRIIPPTTIIOONN
       This is the Catalyst Model Class called "Catalyst::Model::Proxy" that
       implements Proxy Design Pattern. It enables you to make calls to target
       classes/subroutines via proxy mechanism. This means reduced memory
       footprint because any operations performed on the proxies are forwarded
       to the original complex ( target_class ) object. The target class model
       is also cached for increased performance. For more information on the
       proxy design pattern please refer yourself to:
       http://en.wikipedia.org/wiki/Proxy_design_pattern

MMEETTHHOODDSS
       new Initializes DBI connection

SSEEEE AALLSSOO
       Catalyst

AAUUTTHHOORR
       Alex Pavlovic, "alex.pavlovic@taskforce-1.com"

CCOOPPYYRRIIGGHHTT
       This program is free software, you can redistribute it and/or modify it
       under the same terms as Perl itself.



perl v5.8.8                       2006-05-31         Catalyst::Model::Proxy(3)
