DBSession Class Reference
[Model]

Redirect session to write to DB. More...

Inheritance diagram for DBSession:

List of all members.

Public Member Functions
	close ()
	Close a session.
	destroy ($key)
	Delete a session.
	gc ($lifetime)
	Delete outdated sessions.
	open ($save_path, $session_name)
	Open a session.
	read ($key)
	Load session data from database.
	write ($key, $value)
	Write session data to DB.

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Detailed Description

Redirect session to write to DB.

Author:

Gerd Riesselmann

Definition at line 10 of file dbsession.cls.php.

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Member Function Documentation

DBSession::close

(

)

Close a session.

Implements ISessionHandler.

Definition at line 21 of file dbsession.cls.php.

                                {
                //Note that for security reasons the Debian and Ubuntu distributions of 
                //php do not call _gc to remove old sessions, but instead run /etc/cron.d/php*, 
                //which check the value of session.gc_maxlifetime in php.ini and delete the session 
                //files in /var/lib/php*.  This is all fine, but it means if you write your own 
                //session handlers you'll need to explicitly call your _gc public function yourself.  
                //A good place to do this is in your _close public function
                
                $this->gc(ini_get('session.gc_maxlifetime'));
                return true;
        }

DBSession::destroy

(

$

key

)

Delete a session.

Implements ISessionHandler.

Definition at line 77 of file dbsession.cls.php.

                                      {
                try {
                        $sess = new DAOSessions();
                        $sess->id = $key;
                        $sess->delete();
                }
                catch(Exception $ex) {}
        }

DBSession::gc

(

$

lifetime

)

Delete outdated sessions.

Implements ISessionHandler.

Definition at line 89 of file dbsession.cls.php.

                                      {
                if (!Session::is_started()) {
                        return;
                }
                try {
                        $sess = new DAOSessions();
                        $sess->add_where('modificationdate', '<', time() - $lifetime);  
                        $sess->delete(DataObjectBase::WHERE_ONLY);
                }
                catch (Exception $ex) {}
                
                return true;
        }

DBSession::open	(	$	save_path,
		$	session_name
	)

Open a session.

Implements ISessionHandler.

Definition at line 14 of file dbsession.cls.php.

                                                        {
                return true;
        }

DBSession::read

(

$

key

)

Load session data from database.

Implements ISessionHandler.

Definition at line 36 of file dbsession.cls.php.

                                   {
                // Write and Close handlers are called after destructing objects since PHP 5.0.5
                // Thus destructors can use sessions but session handler can't use objects.
                // So we are moving session closure before destructing objects.
                register_shutdown_function('session_write_close');
                $sess = DB::get_item('sessions', 'id', $key);
                if ($sess) {
                        return $sess->data;                     
                }
                return '';
        }

DBSession::write	(	$	key,
		$	value
	)

Write session data to DB.

Implements ISessionHandler.

Definition at line 51 of file dbsession.cls.php.

                                            {
                try {
                        // Rollback any open transactions, if there are any
                        //DB::rollback();
                        $sess = DB::get_item('sessions', 'id', $key);
                        $err = false;
                        if ($sess) {
                                $sess->data = $value;
                                $err = $sess->update();
                        }
                        else {
                                $sess = new DAOSessions();
                                $sess->id = $key;
                                $sess->data = $value;
                                $err = $sess->insert();
                        }
                        return $err->is_ok();
                }
                catch(Exception $ex) {
                        return false;
                }       
        }

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The documentation for this class was generated from the following file:

• gyro/core/model/base/dbsession.cls.php