名前 Class::DBI::Sweet::Pie - Class::DBI::Sweetで集約関数を扱うためのモジュール 概要 package MyData::CD; use base qw/Class::DBI::Sweet/; __PACKAGE__->has_a( artist => 'MyData::Artist' ); use Class::DBI::Sweet::Pie; __PACKAGE__->mk_aggregate_function('sum'); __PACKAGE__->mk_aggregate_function( max => 'maximum'); package MyData::Artist; use base qw/Class::DBI::Sweet/; __PACKAGE__->has_many( cds => 'MyData::CD' ); use C