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<?php
/**
* SessionComponent. Provides access to Sessions from the Controller layer
*
* PHP 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package Cake.Controller.Component
* @since CakePHP(tm) v 0.10.0.1232
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::uses('Component', 'Controller');
App::uses('CakeSession', 'Model/Datasource');
/**
* The CakePHP SessionComponent provides a way to persist client data between
* page requests. It acts as a wrapper for the `$_SESSION` as well as providing
* convenience methods for several `$_SESSION` related functions.
*
* @package Cake.Controller.Component
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html
* @link http://book.cakephp.org/2.0/en/development/sessions.html
*/
class SessionComponent extends Component {
/**
* Get / Set the userAgent
*
* @param string $userAgent Set the userAgent
* @return void
*/
public function userAgent($userAgent = null) {
return CakeSession::userAgent($userAgent);
}
/**
* Used to write a value to a session key.
*
* In your controller: $this->Session->write('Controller.sessKey', 'session value');
*
* @param string $name The name of the key your are setting in the session.
* This should be in a Controller.key format for better organizing
* @param string $value The value you want to store in a session.
* @return boolean Success
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#SessionComponent::write
*/
public function write($name, $value = null) {
return CakeSession::write($name, $value);
}
/**
* Used to read a session values for a key or return values for all keys.
*
* In your controller: $this->Session->read('Controller.sessKey');
* Calling the method without a param will return all session vars
*
* @param string $name the name of the session key you want to read
* @return mixed value from the session vars
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#SessionComponent::read
*/
public function read($name = null) {
return CakeSession::read($name);
}
/**
* Wrapper for SessionComponent::del();
*
* In your controller: $this->Session->delete('Controller.sessKey');
*
* @param string $name the name of the session key you want to delete
* @return boolean true is session variable is set and can be deleted, false is variable was not set.
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#SessionComponent::delete
*/
public function delete($name) {
return CakeSession::delete($name);
}
/**
* Used to check if a session variable is set
*
* In your controller: $this->Session->check('Controller.sessKey');
*
* @param string $name the name of the session key you want to check
* @return boolean true is session variable is set, false if not
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#SessionComponent::check
*/
public function check($name) {
return CakeSession::check($name);
}
/**
* Used to determine the last error in a session.
*
* In your controller: $this->Session->error();
*
* @return string Last session error
*/
public function error() {
return CakeSession::error();
}
/**
* Used to set a session variable that can be used to output messages in the view.
*
* In your controller: $this->Session->setFlash('This has been saved');
*
* Additional params below can be passed to customize the output, or the Message.[key].
* You can also set additional parameters when rendering flash messages. See SessionHelper::flash()
* for more information on how to do that.
*
* @param string $message Message to be flashed
* @param string $element Element to wrap flash message in.
* @param array $params Parameters to be sent to layout as view variables
* @param string $key Message key, default is 'flash'
* @return void
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#creating-notification-messages
*/
public function setFlash($message, $element = 'default', $params = array(), $key = 'flash') {
CakeSession::write('Message.' . $key, compact('message', 'element', 'params'));
}
/**
* Used to renew a session id
*
* In your controller: $this->Session->renew();
*
* @return void
*/
public function renew() {
return CakeSession::renew();
}
/**
* Used to check for a valid session.
*
* In your controller: $this->Session->valid();
*
* @return boolean true is session is valid, false is session is invalid
*/
public function valid() {
return CakeSession::valid();
}
/**
* Used to destroy sessions
*
* In your controller: $this->Session->destroy();
*
* @return void
* @link http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#SessionComponent::destroy
*/
public function destroy() {
return CakeSession::destroy();
}
/**
* Get/Set the session id.
*
* When fetching the session id, the session will be started
* if it has not already been started. When setting the session id,
* the session will not be started.
*
* @param string $id Id to use (optional)
* @return string The current session id.
*/
public function id($id = null) {
if (empty($id)) {
CakeSession::start();
}
return CakeSession::id($id);
}
/**
* Returns a bool, whether or not the session has been started.
*
* @return boolean
*/
public function started() {
return CakeSession::started();
}
}
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