Class::DBI::Pg(3pm)

Usage

  use strict;
  use base qw(Class::DBI::Pg);
  __PACKAGE__->set_db(Main => 'dbi:Pg:dbname=dbname', 'user', 'password');
  __PACKAGE__->set_up_table('film');

Overview

Class::DBI::Pg automate the setup of Class::DBI columns and primary key for Postgres.

select Postgres system catalog and find out all columns, primary key and SERIAL type column.

create table.

 CREATE TABLE cd (
     id SERIAL NOT NULL PRIMARY KEY,
     title TEXT,
     artist TEXT,
     release_date DATE
 );

setup your class.

 package CD;
 use strict;
 use base qw(Class::DBI::Pg);
 __PACKAGE__->set_db(Main => 'dbi:Pg:dbname=db', 'user', 'password');
 __PACKAGE__->set_up_table('cd');

This is almost the same as the following way.

 package CD;
 use strict;
 use base qw(Class::DBI);
 __PACKAGE__->set_db(Main => 'dbi:Pg:dbname=db', 'user', 'password');
 __PACKAGE__->table('cd');
 __PACKAGE__->columns(Primary => 'id');
 __PACKAGE__->columns(All => qw(id title artist release_date));
 __PACKAGE__->sequence('cd_id_seq');

Methods

set_up_table TABLENAME HASHREF

Declares the Class::DBI class specified by TABLENAME. HASHREF can specify options to when setting up the table.

ColumnGroup

You can specify the column group that you want your columns to be in.

   $class->set_up_table($table,  { ColumnGroup => 'Essential' });

The default is 'All'

Primary: Overrides primary key setting. This can be useful when working with views instead of tables.

pg_version

Returns the postgres version that you are currently using.

Author emeritus

Sebastian Riedel, "[email protected]" IKEBE Tomohiro, "[email protected]"

Releases

11 releases since Debian 3.1 (Sarge); the text changed 5 times.