Typo3 Extbase设置并从Session获取值

Question

我在typo3 v6.1上写了一个extbase扩展名.扩展程序假设要做一张公交车票预订.在我的计划中,用户将选择日期和座位数并提交表格.

在这里,我计划将所选座位的日期和费率推送到会话(篮子).在付款时,我希望从会话中获得价值,付款后我需要清除该特定会话.

简而言之,如何在extbase中推送和检索会话中的值.有什么建议 ？谢谢.

Answer 1

有不同的方式.最简单的是在会话中写作

$GLOBALS['TSFE']->fe_user->setKey("ses","key",$value)

并从会话中读取值

$GLOBALS["TSFE"]->fe_user->getKey("ses","key")

Answer 2

我正在使用这个服务类.

<?php
class Tx_EXTNAME_Service_SessionHandler implements t3lib_Singleton {

    private $prefixKey = 'tx_extname_';

    /**
    * Returns the object stored in the user´s PHP session
    * @return Object the stored object
    */
    public function restoreFromSession($key) {
        $sessionData = $GLOBALS['TSFE']->fe_user->getKey('ses', $this->prefixKey . $key);
        return unserialize($sessionData);
    }

    /**
    * Writes an object into the PHP session
    * @param    $object any serializable object to store into the session
    * @return   Tx_EXTNAME_Service_SessionHandler this
    */
    public function writeToSession($object, $key) {
        $sessionData = serialize($object);
        $GLOBALS['TSFE']->fe_user->setKey('ses', $this->prefixKey . $key, $sessionData);
        $GLOBALS['TSFE']->fe_user->storeSessionData();
        return $this;
    }

    /**
    * Cleans up the session: removes the stored object from the PHP session
    * @return   Tx_EXTNAME_Service_SessionHandler this
    */
    public function cleanUpSession($key) {
        $GLOBALS['TSFE']->fe_user->setKey('ses', $this->prefixKey . $key, NULL);
        $GLOBALS['TSFE']->fe_user->storeSessionData();
        return $this;
    }

    public function setPrefixKey($prefixKey) {
    $this->prefixKey = $prefixKey;
    }

}
?>

将此类注入控制器

/**
 *
 * @var Tx_EXTNAME_Service_SessionHandler
 */
protected $sessionHandler;

/**
 * 
 * @param Tx_EXTNAME_Service_SessionHandler $sessionHandler
 */
public function injectSessionHandler(Tx_EXTNAME_Service_SessionHandler $sessionHandler) {
    $this->sessionHandler = $sessionHandler;
}

现在您可以像这样使用此会话处理程序.

// Write your object into session
$this->sessionHandler->writeToSession('KEY_FOR_THIS_PROCESS');

// Get your object from session
$this->sessionHandler->restoreFromSession('KEY_FOR_THIS_PROCESS');

// And after all maybe you will clean the session (delete)
$this->sessionHandler->cleanUpSession('KEY_FOR_THIS_PROCESS');

使用您的扩展名重命名Tx_EXTNAME和tx_extname,并注意将会话处理程序类放入正确的目录(Classes - > Service - > SessionHandler.php).

您可以存储任何数据,而不仅仅是对象.

HTH

Answer 3

从Typo3 v7，您还可以复制表单的本机会话处理程序（\ TYPO3 \ CMS \ Form \ Utility \ SessionUtility）并将其更改为您的需要。该类在普通用户和登录用户之间有所不同，它支持由sessionPrefix分隔的多个会话数据。

我做了同样的事情，并出于更常见的目的将类归纳为通用。我只删除了一个方法，更改了变量名称，并添加了方法hasSessionKey（）。这是我完整的示例：

use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;

/**
* Class SessionUtility
*
* this is just a adapted version from   \TYPO3\CMS\Form\Utility\SessionUtility,
* but more generalized without special behavior for form
*
*
*/
class SessionUtility {

/**
 * Session data
 *
 * @var array
 */
protected $sessionData = array();

/**
 * Prefix for the session
 *
 * @var string
 */
protected $sessionPrefix = '';

/**
 * @var TypoScriptFrontendController
 */
protected $frontendController;

/**
 * Constructor
 */
public function __construct()
{
    $this->frontendController = $GLOBALS['TSFE'];
}

/**
 * Init Session
 *
 * @param string $sessionPrefix
 * @return void
 */
public function initSession($sessionPrefix = '')
{
    $this->setSessionPrefix($sessionPrefix);
    if ($this->frontendController->loginUser) {
        $this->sessionData = $this->frontendController->fe_user->getKey('user', $this->sessionPrefix);
    } else {
        $this->sessionData = $this->frontendController->fe_user->getKey('ses', $this->sessionPrefix);
    }
}

/**
 * Stores current session
 *
 * @return void
 */
public function storeSession()
{
    if ($this->frontendController->loginUser) {
        $this->frontendController->fe_user->setKey('user', $this->sessionPrefix, $this->getSessionData());
    } else {
        $this->frontendController->fe_user->setKey('ses', $this->sessionPrefix, $this->getSessionData());
    }
    $this->frontendController->storeSessionData();
}

/**
 * Destroy the session data for the form
 *
 * @return void
 */
public function destroySession()
{
    if ($this->frontendController->loginUser) {
        $this->frontendController->fe_user->setKey('user', $this->sessionPrefix, null);
    } else {
        $this->frontendController->fe_user->setKey('ses', $this->sessionPrefix, null);
    }
    $this->frontendController->storeSessionData();
}

/**
 * Set the session Data by $key
 *
 * @param string $key
 * @param string $value
 * @return void
 */
public function setSessionData($key, $value)
{
    $this->sessionData[$key] = $value;
    $this->storeSession();
}

/**
 * Retrieve a member of the $sessionData variable
 *
 * If no $key is passed, returns the entire $sessionData array
 *
 * @param string $key Parameter to search for
 * @param mixed $default Default value to use if key not found
 * @return mixed Returns NULL if key does not exist
 */
public function getSessionData($key = null, $default = null)
{
    if ($key === null) {
        return $this->sessionData;
    }
    return isset($this->sessionData[$key]) ? $this->sessionData[$key] : $default;
}

/**
 * Set the s prefix
 *
 * @param string $sessionPrefix
 *
 */
public function setSessionPrefix($sessionPrefix)
{
    $this->sessionPrefix = $sessionPrefix;
}

/**
 * @param string $key
 *
 * @return bool
 */
public function hasSessionKey($key) {
    return isset($this->sessionData[$key]);
}

}

每次要使用此类的任何方法时，请不要忘记先调用initSession