NAME¶

Apache::Session::Browseable::Postgres - Add index and search methods to Apache::Session::Postgres

SYNOPSIS¶

Create table with columns for indexed fields. Example for Lemonldap::NG:

  CREATE UNLOGGED TABLE sessions (
      id varchar(64) not null primary key,
      a_session text,
      _whatToTrace text,
      _session_kind text,
      _utime bigint,
      ipAddr varchar(64)
  );

Add indexes:

  CREATE INDEX uid1 ON sessions USING BTREE (_whatToTrace);
  CREATE INDEX s1   ON sessions (_session_kind);
  CREATE INDEX u1   ON sessions (_utime);
  CREATE INDEX ip1  ON sessions USING BTREE (ipAddr);

Use it with Perl:

  use Apache::Session::Browseable::Postgres;
  my $args = {
       DataSource => 'dbi:Pg:sessions',
       UserName   => $db_user,
       Password   => $db_pass,
       Commit     => 1,
       # Choose your browseable fileds
       Index      => '_whatToTrace _session_kind _utime iAddr',
  };
  
  # Use it like Apache::Session
  my %session;
  tie %session, 'Apache::Session::Browseable::Postgres', $id, $args;
  $session{uid} = 'me';
  $session{mail} = 'me@me.com';
  $session{unindexedField} = 'zz';
  untie %session;
  
  # Apache::Session::Browseable add some global class methods
  #
  # 1) search on a field (indexed or not)
  my $hash = Apache::Session::Browseable::Postgres->searchOn( $args, 'uid', 'me' );
  foreach my $id (keys %$hash) {
    print $id . ":" . $hash->{$id}->{mail} . "\n";
  }
  # 2) Parse all sessions
  # a. get all sessions
  my $hash = Apache::Session::Browseable::Postgres->get_key_from_all_sessions();
  # b. get some fields from all sessions
  my $hash = Apache::Session::Browseable::Postgres->get_key_from_all_sessions('uid', 'mail')
  # c. execute something with datas from each session :
  #    Example : get uid and mail if mail domain is
  my $hash = Apache::Session::Browseable::Postgres->get_key_from_all_sessions(
              sub {
                 my ( $session, $id ) = @_;
                 if ( $session->{mail} =~ /mydomain.com$/ ) {
                     return { $session->{uid}, $session->{mail} };
                 }
              }
  );
  foreach my $id (keys %$hash) {
    print $id . ":" . $hash->{$id}->{uid} . "=>" . $hash->{$id}->{mail} . "\n";
  }

DESCRIPTION¶

Apache::Session::Browseable provides some class methods to manipulate all sessions and add the capability to index some fields to make research faster.

Apache::Session::Browseable::Postgres implements it for PosqtgreSQL databases.

SEE ALSO¶

<http://lemonldap-ng.org>, Apache::Session::Postgres

AUTHOR¶

Xavier Guimard, <x.guimard@free.fr>

COPYRIGHT AND LICENSE¶

Copyright (C) 2009-2017 by Xavier Guimard
2013-2017 by Clement Oudot

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.1 or, at your option, any later version of Perl 5 you may have available.