1 files changed, 0 insertions, 323 deletions
diff --git a/framework/Caching/TPdoCache.php b/framework/Caching/TPdoCache.php
deleted file mode 100644
index 78fc6849..00000000
--- a/framework/Caching/TPdoCache.php
+++ /dev/null
@@ -1,323 +0,0 @@
-<?php
-/**
- * TDbCache class file
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright &copy; 2005-2007 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Id$
- * @package System.Caching
- */
-
-Prado::using('System.Data.TDbConnection');
-
-/**
- * TDbCache class
- *
- * TDbCache implements a cache application module by storing cached data in a database.
- *
- * TDbCache relies on {@link http://www.php.net/manual/en/ref.pdo.php PDO} to retrieve
- * data from databases. In order to use TDbCache, you need to enable the PDO extension
- * as well as the corresponding PDO DB driver. For example, to use SQLite database
- * to store cached data, you need both php_pdo and php_pdo_sqlite extensions.
- *
- * By default, TDbCache creates and uses an SQLite database under the application
- * runtime directory. You may change this default setting by specifying the following
- * properties:
- * - {@link setConnectionString ConnectionString}
- * - {@link setUsername Username}
- * - {@link setPassword Pasword}
- *
- * The cached data is stored in a table in the specified database.
- * By default, the name of the table is called 'pradocache'. If the table does not
- * exist in the database, it will be automatically created with the following structure:
- * (key CHAR(128) PRIMARY KEY, value BLOB, expire INT)
- *
- * If you want to change the cache table name, or if you want to create the table by yourself,
- * you may set {@link setCacheTableName CacheTableName} and {@link setAutoCreateCacheTable AutoCreateCacheTableName} properties.
- *
- * The following basic cache operations are implemented:
- * - {@link get} : retrieve the value with a key (if any) from cache
- * - {@link set} : store the value with a key into cache
- * - {@link add} : store the value only if cache does not have this key
- * - {@link delete} : delete the value with the specified key from cache
- * - {@link flush} : delete all values from cache
- *
- * Each value is associated with an expiration time. The {@link get} operation
- * ensures that any expired value will not be returned. The expiration time by
- * the number of seconds. A expiration time 0 represents never expire.
- *
- * By definition, cache does not ensure the existence of a value
- * even if it never expires. Cache is not meant to be an persistent storage.
- *
- * Do not use the same database file for multiple applications using TDbCache.
- * Also note, cache is shared by all user sessions of an application.
- *
- * To use this module, the sqlite PHP extension must be loaded. Note, Sqlite extension
- * is no longer loaded by default since PHP 5.1.
- *
- * Some usage examples of TDbCache are as follows,
- * <code>
- * $cache=new TDbCache;  // TDbCache may also be loaded as a Prado application module
- * $cache->init(null);
- * $cache->add('object',$object);
- * $object2=$cache->get('object');
- * </code>
- *
- * If loaded, TDbCache will register itself with {@link TApplication} as the
- * cache module. It can be accessed via {@link TApplication::getCache()}.
- *
- * TDbCache may be configured in application configuration file as follows
- * <code>
- * <module id="cache" class="System.Caching.TDbCache" />
- * </code>
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package System.Caching
- * @since 3.1.0
- */
-class TDbCache extends TCache
-{
-	/**
-	 * @var TDbConnection the DB connection instance
-	 */
-	private $_db;
-	/**
-	 * @var string name of the DB cache table
-	 */
-	private $_cacheTable='pradocache';
-	/**
-	 * @var boolean whether the cache DB table should be created automatically
-	 */
-	private $_autoCreate=true;
-
-	/**
-	 * Destructor.
-	 * Disconnect the db connection.
-	 */
-	public function __destruct()
-	{
-		if($this->_db!==null)
-			$this->_db->setActive(false);
-	}
-
-	/**
-	 * Initializes this module.
-	 * This method is required by the IModule interface. It checks if the DbFile
-	 * property is set, and creates a SQLiteDatabase instance for it.
-	 * The database or the cache table does not exist, they will be created.
-	 * Expired values are also deleted.
-	 * @param TXmlElement configuration for this module, can be null
-	 * @throws TConfigurationException if sqlite extension is not installed,
-	 *         DbFile is set invalid, or any error happens during creating database or cache table.
-	 */
-	public function init($config)
-	{
-		$db=$this->getDbConnection();
-		if($db->getConnectionString()==='')
-		{
-			// default to SQLite3 database
-			$dbFile=$this->getApplication()->getRuntimePath().'/sqlite3.cache';
-			$db->setConnectionString('sqlite:'.$dbFile);
-		}
-
-		$db->setActive(true);
-
-		$sql='DELETE FROM '.$this->_cacheTable.' WHERE expire<>0 AND expire<'.time();
-		try
-		{
-			$db->createCommand($sql)->execute();
-		}
-		catch(Exception $e)
-		{
-			// DB table not exists
-			if($this->_autoCreate)
-			{
-				$sql='CREATE TABLE '.$this->_cacheTable.' (key CHAR(128) PRIMARY KEY, value BLOB, expire INT)';
-				$db->createCommand($sql)->execute();
-			}
-			else
-				throw TConfigurationException('pdocache_cachetable_inexistent',$this->_cacheTable);
-		}
-
-		parent::init($config);
-	}
-
-	/**
-	 * @return TDbConnection the DB connection instance
-	 */
-	public function getDbConnection()
-	{
-		if($this->_db===null)
-			$this->_db=new TDbConnection;
-		return $this->_db;
-	}
-
-	/**
-	 * @return string The Data Source Name, or DSN, contains the information required to connect to the database.
-	 */
-	public function getConnectionString()
-	{
-		return $this->getDbConnection()->getConnectionString();
-	}
-
-	/**
-	 * @param string The Data Source Name, or DSN, contains the information required to connect to the database.
-	 * @see http://www.php.net/manual/en/function.pdo-construct.php
-	 */
-	public function setConnectionString($value)
-	{
-		$this->getDbConnection()->getConnectionString($value);
-	}
-
-	/**
-	 * @return string the username for establishing DB connection. Defaults to empty string.
-	 */
-	public function getUsername()
-	{
-		return $this->getDbConnection()->getUsername();
-	}
-
-	/**
-	 * @param string the username for establishing DB connection
-	 */
-	public function setUsername($value)
-	{
-		$this->getDbConnection()->setUsername($value);
-	}
-
-	/**
-	 * @return string the password for establishing DB connection. Defaults to empty string.
-	 */
-	public function getPassword()
-	{
-		return $this->getDbConnection()->getPassword();
-	}
-
-	/**
-	 * @param string the password for establishing DB connection
-	 */
-	public function setPassword($value)
-	{
-		$this->getDbConnection()->setPassword($value);
-	}
-
-	/**
-	 * @return string the name of the DB table to store cache content. Defaults to 'pradocache'.
-	 * @see setAutoCreateCacheTable
-	 */
-	public function getCacheTableName()
-	{
-		return $this->_cacheTable;
-	}
-
-	/**
-	 * Sets the name of the DB table to store cache content.
-	 * Note, if {@link setAutoCreateCacheTable AutoCreateCacheTable} is false
-	 * and you want to create the DB table manually by yourself,
-	 * you need to make sure the DB table is of the following structure:
-	 * (key CHAR(128) PRIMARY KEY, value BLOB, expire INT)
-	 * @param string the name of the DB table to store cache content
-	 * @see setAutoCreateCacheTable
-	 */
-	public function setCacheTableName($value)
-	{
-		$this->_cacheTable=$value;
-	}
-
-	/**
-	 * @return boolean whether the cache DB table should be automatically created if not exists. Defaults to true.
-	 * @see setAutoCreateCacheTable
-	 */
-	public function getAutoCreateCacheTable()
-	{
-		return $this->_autoCreate;
-	}
-
-	/**
-	 * @param boolean whether the cache DB table should be automatically created if not exists.
-	 * @see setCacheTableName
-	 */
-	public function setAutoCreateCacheTable($value)
-	{
-		$this->_autoCreate=TPropertyValue::ensureBoolean($value);
-	}
-
-	/**
-	 * Retrieves a value from cache with a specified key.
-	 * This is the implementation of the method declared in the parent class.
-	 * @param string a unique key identifying the cached value
-	 * @return string the value stored in cache, false if the value is not in the cache or expired.
-	 */
-	protected function getValue($key)
-	{
-		$sql='SELECT value FROM '.$this->_cacheTable.' WHERE key=\''.$key.'\' AND (expire=0 OR expire>'.time().')';
-		return $this->_db->createCommand($sql)->queryScalar();
-	}
-
-	/**
-	 * Stores a value identified by a key in cache.
-	 * This is the implementation of the method declared in the parent class.
-	 *
-	 * @param string the key identifying the value to be cached
-	 * @param string the value to be cached
-	 * @param integer the number of seconds in which the cached value will expire. 0 means never expire.
-	 * @return boolean true if the value is successfully stored into cache, false otherwise
-	 */
-	protected function setValue($key,$value,$expire)
-	{
-		$this->deleteValue($key);
-		return $this->addValue($key,$value,$expire);
-	}
-
-	/**
-	 * Stores a value identified by a key into cache if the cache does not contain this key.
-	 * This is the implementation of the method declared in the parent class.
-	 *
-	 * @param string the key identifying the value to be cached
-	 * @param string the value to be cached
-	 * @param integer the number of seconds in which the cached value will expire. 0 means never expire.
-	 * @return boolean true if the value is successfully stored into cache, false otherwise
-	 */
-	protected function addValue($key,$value,$expire)
-	{
-		$sql="INSERT INTO {$this->_cacheTable} (key,value,expire) VALUES('$key',:value,$expire)";
-		try
-		{
-			$command=$this->_db->createCommand($sql);
-			$command->bindValue(':value',$value,PDO::PARAM_LOB);
-			$command->execute();
-			return true;
-		}
-		catch(Exception $e)
-		{
-			return false;
-		}
-	}
-
-	/**
-	 * Deletes a value with the specified key from cache
-	 * This is the implementation of the method declared in the parent class.
-	 * @param string the key of the value to be deleted
-	 * @return boolean if no error happens during deletion
-	 */
-	protected function deleteValue($key)
-	{
-		$this->_db->createCommand("DELETE FROM {$this->_cacheTable} WHERE key='$key'")->execute();
-		return true;
-	}
-
-	/**
-	 * Deletes all values from cache.
-	 * Be careful of performing this operation if the cache is shared by multiple applications.
-	 */
-	public function flush()
-	{
-		$this->_db->createCommand("DELETE FROM {$this->_cacheTable}")->execute();
-		return true;
-	}
-}
-
-?>
-\ No newline at end of file