1 files changed, 126 insertions, 0 deletions
diff --git a/demos/time-tracker/protected/App_Code/DaoManager.php b/demos/time-tracker/protected/App_Code/DaoManager.php
new file mode 100644
index 00000000..b8ac55af
--- /dev/null
+++ b/demos/time-tracker/protected/App_Code/DaoManager.php
@@ -0,0 +1,126 @@
+<?php
+/**
+ * DaoManager class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2006 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $  $16/07/2006: $
+ * @package Demos
+ */
+ 
+/**
+ * DaoManager class.
+ * 
+ * A Registry for Dao and an implementation of that type.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: $  $16/07/2006: $
+ * @package Demos
+ * @since 3.1
+ */
+class DaoManager extends TModule
+{
+	/**
+	 * @var TSqlMapper sqlmap client
+	 */
+	private $_connection;
+	/**
+	 * @var boolean if the module has been initialized
+	 */
+	private $_initialized=false;	
+	/**
+	 * @var array registered list of dao
+	 */
+	private $_dao=array();
+	/**
+	 * Initializes the module.
+	 * This method is required by IModule and is invoked by application.
+	 * It loads dao information from the module configuration.
+	 * @param TXmlElement module configuration
+	 */
+	public function init($config)
+	{ 	
+		if($this->_connection === null)
+			throw new TimeTrackerException('daomanager_connection_required');
+		$app = $this->getApplication();
+		if(is_string($this->_connection))
+		{
+			if(($conn=$app->getModule($this->_connection)->getClient())===null)
+				throw new TimeTrackerException('daomanager_undefined_connection',$this->_connection);
+			if(!($conn instanceof TSqlMapper))
+				throw new TimeTrackerException('daomanager_invalid_connection',	$this->_connection);
+			$this->_connection = $conn;
+		}
+		$this->includeDaoImplementation($config->getElementsByTagName('dao'));
+		$this->_initialized = true;
+	}
+	
+	/**
+	 * Register the dao type and implementation class names.
+	 * @param array list of TXmlDocument nodes.
+	 */
+	protected function includeDaoImplementation($nodes)
+	{
+		foreach($nodes as $node)
+		{
+			$id = $node->getAttribute('id');
+			$class = $node->getAttribute('class');
+			$this->_dao[$id] = array('class' => $class);
+		}
+	}
+	
+	/**
+	 * @return array list of registered Daos
+	 */
+	public function getDaos()
+	{
+		return $this->_dao;
+	}
+	
+	/**
+	 * Returns an implementation of a Dao type, implements the Registery
+	 * pattern. Multiple calls returns the same Dao instance.
+	 * @param string Dao type to find.
+	 * @return object instance of the Dao implementation.
+	 */
+	public function getDao($class)
+	{
+		if(isset($this->_dao[$class]))
+		{
+			if(!isset($this->_dao[$class]['instance']))
+			{
+				$dao = Prado::createComponent($this->_dao[$class]['class']);
+				$dao->setConnection($this->getConnection());
+				$this->_dao[$class]['instance'] = $dao;	
+			}
+			return $this->_dao[$class]['instance'];
+		}
+		else
+			throw TimeTrackerException('daomanager_undefined_dao', $class);
+	}
+	
+	/**
+	 * @return TSqlMapper sqlmap client instance
+	 */
+	public function getConnection()
+	{
+		return $this->_connection;
+	}
+	
+	/**
+	 * Sets the connection for all Daos registered.
+	 * @param string|TSqlMapper sqlmap client module id or TSqlMapper instance.
+	 */
+	public function setConnection($client)
+	{
+		if($this->_initialized)
+			throw new TimeTrackerException('daomanager_unchangeable');
+		if(!is_string($client) && !($client instanceof TSqlMapper))
+			throw new TConfigurationException('daomanager_invalid_connection',$client);
+		$this->_connection = $client;
+	}
+}
+
+?>
+\ No newline at end of file