NAME DBIx::Class::ResultSet::Void - improve DBIx::Class::ResultSet with void context VERSION version 0.06 SYNOPSIS my $rs = $schema->resultset('CD'); $rs->find_or_create( { artist => 'Massive Attack', title => 'Mezzanine', } ); As ResultSet subclass in Schema.pm: __PACKAGE__->load_namespaces( default_resultset_class => '+DBIx::Class::ResultSet::Void' ); Or in Schema/CD.pm __PACKAGE__->resultset_class('DBIx::Class::ResultSet::Void'); Or in ResultSet/CD.pm use base 'DBIx::Class::ResultSet::Void'; DESCRIPTION The API is the same as DBIx::Class::ResultSet. use "exists" instead of "find" unless defined wantarray. (Thank ribasushi to tell me "count" is bad) METHODS * exists $rs->exists( { id => 1 } ); It works like: $rs->search( { id => 1 }, { rows => 1, select => [1] } )->single; It is a little faster than "count" if you don't care the real count. * find_or_create "find_or_create" in DBIx::Class::ResultSet: $rs->find_or_create( { id => 1, name => 'A' } ); produces SQLs like: # SELECT me.id, me.name FROM item me WHERE ( me.id = ? ): '1' # INSERT INTO item ( id, name) VALUES ( ?, ? ): '1', 'A' but indeed "SELECT 1 ... LIMIT 1" is performing a little better than me.id, me.name this module DBIx::Class::ResultSet::Void produces SQLs like: # SELECT 1 FROM item me WHERE ( me.id = ? ) LIMIT 1: '1' # INSERT INTO item ( id, name) VALUES ( ?, ? ): '1', 'A' we would delegate it DBIx::Class::ResultSet under context like: my $row = $rs->find_or_create( { id => 1, name => 'A' } ); * update_or_create "update_or_create" in DBIx::Class::ResultSet: $rs->update_or_create( { id => 1, name => 'B' } ); produces SQLs like: # SELECT me.id, me.name FROM item me WHERE ( me.id = ? ): '1' # UPDATE item SET name = ? WHERE ( id = ? ): 'B', '1' this module: # SELECT 1 FROM item me WHERE ( me.id = ? ) LIMIT 1: '1' # UPDATE item SET name = ? WHERE ( id = ? ): 'B', '1' AUTHOR Fayland Lam COPYRIGHT AND LICENSE This software is copyright (c) 2009 by Fayland Lam. This is free software; you can redistribute it and/or modify it under the same terms as perl itself.