25 Jan 2003 02:17:03 UTC
- Distribution: Session
- Module version: 0.01
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Session - Object Oriented wrapper around Apache::Session to avoid its tie mechanism
use Session; my %session_config = ( Store => 'DB_File', Lock => 'Null', Generate => 'MD5', Serialize => 'Storable', # DB_File backend option FileName => 'sessions.db', ); # make a fresh session for a first-time visitor my $session = new Session undef, %session_config; # stick some stuff in it $session->set(visa_number => '1234 5678 9876 5432'; # ...time passes... # get the session data back out again during some other request my $session = new Session $session_id, %session_config; validate($session->get('visa_number')); # delete a session from the object store permanently $session->delete();
This module is a simple wrapper around Apache::Session without the
tieinterface. Tie is too slow for web applications (think mod_perl) and you may prefere a standard OO API instead of a poor tie interface (I hate tie).
You should look for Apache::Session and Apache::Session::Flex man page for more details on the session management. We will explain here only things that differs from Apache::Session.
Note that neither Apache::Session nor Session are liked with mod_perl, you should use Session in any programs for the web or not.
$session = new Session $id, %options
This method return a wrapped Apache::Session::Flex object (see related manual for more details). The first element is the session id (undef for create one), followed by Apache::Session::Flex's options.
Unlike Apache::Session, die isn't called if error appended while the session initialization (Session do the eval for you). This method return undef on error. You can get the error string by calling Session->error();
$session_id = $session->session_id(); # trap errors die(Session->error()) unless defined $session_id;
Gets the session_id, it's equivalent to get the _session_id key with Apache::Session.
$value = $session->get("key");
Get value of the key from the session.
$session->set(key => "value");
Affect a value to a key in the session.
Removes a key from the session.
Clear all keys in the session.
$boolean = $session->exists("key");
Test if key exists.
@keys = $session->keys();
Returns list of keys of parameters in session. Note that it doesn't returns the "_session_id" key as Apache::Session do.
Usually called at the destruction time of object, but can be called manually. Same as calling undef of untie on an Apache::Session tied hash.
Permanently removing the session from storage. Same as calling tied($session)->delete() on an Apache::Session tied hash.
Returns the last appended error message.
Session is a really basic module for avoiding the Apache::Session tie mechanism. Nothing is really implemented in Session, all the job is done by Apache::Session.
Olivier Poitrey <firstname.lastname@example.org> is the author of Session.
Jeffrey Baker <email@example.com> is the author of Apache::Session.
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA