MasonX::Request::WithMultiSession(3pm) User Contributed Perl Documentation MasonX::Request::WithMultiSession(3pm)
NAME
MasonX::Request::WithMultiSession - Multiple sub-sessions within one "parent" session
SYNOPSIS
PerlSetVar MasonRequestClass MasonX::Request::WithMultiSession
DESCRIPTION
This module subclasses "MasonX::Request::WithApacheSession" in order to allow multiple "sub-sessions" to exist within one parent session.
This can be quite useful for a web app where you want to allow the user to open multiple windows, each with a different session, but
session ids are stored in a cookie.
Like "MasonX::Request::WithApacheSession", sub-sessions are shared between a request and any subrequests it creates.
METHODS
This class has an interface quite similar to that of "MasonX::Request::WithApacheSession".
o session
The primary interface to this class is through the "session()" method. When this method is called without any parameters, the module
looks for an existing sub-session specified by the sub-session id argument parameter (which can be in a query string or POST). This
value can be overridden by explicitly passing a "sub_session_id" parameter.
If this parameter is found, an existing sub-session is returned. If this parameter is not found, a new sub-session is created.
If the "session()" method is called as "session( clone => 1 )" then a new sub-session will be created, and its contents will be the
same as that of the current sub-session. This is a shallow copy of the old session hash, so objects and references are shared between
them.
If "session( new => 1 )" is called, then a new, empty, sub-session is created.
You can specify the main session id to use via the "session_id" parameter.
o sub_session_id
This method returns the currently active sub-session's id. Use this method to put this id into URL parameters, forms, etc. as needed.
If given a "sub_session_id" parameter, it will set the current sub-session id.
o delete_sub_session
By default, this simply defaults the current sub-session. You can pass a "sub_session_id" parameter to delete a specific session.
Parameters
This module takes two parameters besides those inherited from "MasonX::Request::WithApacheSession":
o multi_session_args_param / MultiSessionArgsParam
This parameter can be used to specify which parameter contains the sub-session id. By default, the module will look for a parameter
called "sub_session_id".
o multi_session_expire / MultiSessionExpire
This parameter specifies the number of seconds after a sub-session is accessed until it is purged. If not specified, then sub-sessions
are never purged.
Sub-sessions expiration is checked when the request object goes out of scope.
USAGE
You will need to manually set the sub-session id argument parameter for each request. The easiest way to do this is to make sure that all
URLs contain the sub-session id. This can be done by using a "<%filter>" block in a top-level autohandler (although this won't catch
redirects), or by making sure all URLs are generated by a single component/function.
SUPPORT
Bug reports and requests for help should be sent to the mason-users list. See http://www.masonhq.com/resources/mailing_lists.html for more
details.
AUTHOR
Dave Rolsky, <autarch@urth.org>
Development funded by Marigold Technologies.
SEE ALSO
HTML::Mason
perl v5.14.2 2012-12-01 MasonX::Request::WithMultiSession(3pm)