Current File : /www/old2/_music/diplomka/diplomka/src/API/libs/Nette/Http/SessionSection.php
<?php
/**
* This file is part of the Nette Framework (http://nette.org)
*
* Copyright (c) 2004 David Grudl (http://davidgrudl.com)
*
* For the full copyright and license information, please view
* the file license.txt that was distributed with this source code.
*/
namespace Nette\Http;
use Nette;
/**
* Session section.
*
* @author David Grudl
*/
class SessionSection extends Nette\Object implements \IteratorAggregate, \ArrayAccess
{
/** @var Session */
private $session;
/** @var string */
private $name;
/** @var array session data storage */
private $data;
/** @var array session metadata storage */
private $meta = FALSE;
/** @var bool */
public $warnOnUndefined = FALSE;
/**
* Do not call directly. Use Session::getSection().
*/
public function __construct(Session $session, $name)
{
if (!is_string($name)) {
throw new Nette\InvalidArgumentException("Session namespace must be a string, " . gettype($name) ." given.");
}
$this->session = $session;
$this->name = $name;
}
/**
* Do not call directly. Use Session::getNamespace().
*/
private function start()
{
if ($this->meta === FALSE) {
$this->session->start();
$this->data = & $_SESSION['__NF']['DATA'][$this->name];
$this->meta = & $_SESSION['__NF']['META'][$this->name];
}
}
/**
* Returns an iterator over all section variables.
* @return \ArrayIterator
*/
public function getIterator()
{
$this->start();
if (isset($this->data)) {
return new \ArrayIterator($this->data);
} else {
return new \ArrayIterator;
}
}
/**
* Sets a variable in this session section.
* @param string name
* @param mixed value
* @return void
*/
public function __set($name, $value)
{
$this->start();
$this->data[$name] = $value;
if (is_object($value)) {
$this->meta[$name]['V'] = Nette\Reflection\ClassType::from($value)->getAnnotation('serializationVersion');
}
}
/**
* Gets a variable from this session section.
* @param string name
* @return mixed
*/
public function &__get($name)
{
$this->start();
if ($this->warnOnUndefined && !array_key_exists($name, $this->data)) {
trigger_error("The variable '$name' does not exist in session section", E_USER_NOTICE);
}
return $this->data[$name];
}
/**
* Determines whether a variable in this session section is set.
* @param string name
* @return bool
*/
public function __isset($name)
{
if ($this->session->exists()) {
$this->start();
}
return isset($this->data[$name]);
}
/**
* Unsets a variable in this session section.
* @param string name
* @return void
*/
public function __unset($name)
{
$this->start();
unset($this->data[$name], $this->meta[$name]);
}
/**
* Sets a variable in this session section.
* @param string name
* @param mixed value
* @return void
*/
public function offsetSet($name, $value)
{
$this->__set($name, $value);
}
/**
* Gets a variable from this session section.
* @param string name
* @return mixed
*/
public function offsetGet($name)
{
return $this->__get($name);
}
/**
* Determines whether a variable in this session section is set.
* @param string name
* @return bool
*/
public function offsetExists($name)
{
return $this->__isset($name);
}
/**
* Unsets a variable in this session section.
* @param string name
* @return void
*/
public function offsetUnset($name)
{
$this->__unset($name);
}
/**
* Sets the expiration of the section or specific variables.
* @param string|int|DateTime time, value 0 means "until the browser is closed"
* @param mixed optional list of variables / single variable to expire
* @return SessionSection provides a fluent interface
*/
public function setExpiration($time, $variables = NULL)
{
$this->start();
if (empty($time)) {
$time = NULL;
$whenBrowserIsClosed = TRUE;
} else {
$time = Nette\DateTime::from($time)->format('U');
$max = ini_get('session.gc_maxlifetime');
if ($time - time() > $max + 3) { // bulgarian constant
trigger_error("The expiration time is greater than the session expiration $max seconds", E_USER_NOTICE);
}
$whenBrowserIsClosed = FALSE;
}
if ($variables === NULL) { // to entire section
$this->meta['']['T'] = $time;
$this->meta['']['B'] = $whenBrowserIsClosed;
} elseif (is_array($variables)) { // to variables
foreach ($variables as $variable) {
$this->meta[$variable]['T'] = $time;
$this->meta[$variable]['B'] = $whenBrowserIsClosed;
}
} else { // to variable
$this->meta[$variables]['T'] = $time;
$this->meta[$variables]['B'] = $whenBrowserIsClosed;
}
return $this;
}
/**
* Removes the expiration from the section or specific variables.
* @param mixed optional list of variables / single variable to expire
* @return void
*/
public function removeExpiration($variables = NULL)
{
$this->start();
if ($variables === NULL) {
// from entire section
unset($this->meta['']['T'], $this->meta['']['B']);
} elseif (is_array($variables)) {
// from variables
foreach ($variables as $variable) {
unset($this->meta[$variable]['T'], $this->meta[$variable]['B']);
}
} else {
unset($this->meta[$variables]['T'], $this->meta[$variable]['B']);
}
}
/**
* Cancels the current session section.
* @return void
*/
public function remove()
{
$this->start();
$this->data = NULL;
$this->meta = NULL;
}
}
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