NAME

Plack::Session::Store::DBI - DBI-based session store

SYNOPSIS

  use Plack::Builder;
  use Plack::Middleware::Session;
  use Plack::Session::Store::DBI;

  my $app = sub {
      return [ 200, [ 'Content-Type' => 'text/plain' ], [ 'Hello Foo' ] ];
  };

  builder {
      enable 'Session',
          store => Plack::Session::Store::DBI->new(
              dbh => DBI->connect( @connect_args )
          );
      $app;
  };

  # set get_dbh callback for ondemand

  builder {
      enable 'Session',
          store => Plack::Session::Store::DBI->new(
              get_dbh => sub { DBI->connect( @connect_args ) }
          );
      $app;
  };
  
  # with custom serializer/deserializer

  builder {
      enable 'Session',
          store => Plack::Session::Store::DBI->new(
              dbh => DBI->connect( @connect_args )
              # YAML takes its args in the opposite order
              serializer   => sub { YAML::DumpFile( reverse @_ ) },
              deserializer => sub { YAML::LoadFile( @_ ) },
          );
      $app;
  };


  # use custom session table name

  builder {
      enable 'Session',
          store => Plack::Session::Store::DBI->new(
              dbh        => DBI->connect( @connect_args ),
              table_name => 'my_session_table',
          );
      $app;
  };

DESCRIPTION

This implements a DBI based storage for session data. By default it will use Storable and MIME::Base64 to serialize and deserialize the data, but this can be configured easily.

This is a subclass of Plack::Session::Store and implements its full interface.

SESSION TABLE SCHEMA

Your session table must have at least the following schema structure:

    CREATE TABLE sessions (
        id           CHAR(72) PRIMARY KEY,
        session_data TEXT
    );

Note that MySQL TEXT fields only store 64KB, so if your session data will exceed that size you'll want to move to MEDIUMTEXT, MEDIUMBLOB, or larger.

AUTHORS

Many aspects of this module were partially based upon Catalyst::Plugin::Session::Store::DBI

Daisuke Maki

COPYRIGHT AND LICENSE

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