1 files changed, 474 insertions, 474 deletions
diff --git a/framework/Data/DataGateway/TTableGateway.php b/framework/Data/DataGateway/TTableGateway.php
index bdcb391e..c436e0b0 100644
--- a/framework/Data/DataGateway/TTableGateway.php
+++ b/framework/Data/DataGateway/TTableGateway.php
@@ -1,476 +1,476 @@
-<?php
-/**
- * TTableGateway class file.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @link http://www.pradosoft.com/
+<?php
+/**
+ * TTableGateway class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @link http://www.pradosoft.com/
  * @copyright Copyright &copy; 2005-2012 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Id$
- * @package System.Data.DataGateway
- */
-
-/**
- * Loads the data gateway command builder and sql criteria.
- */
-Prado::using('System.Data.DataGateway.TSqlCriteria');
-Prado::using('System.Data.DataGateway.TDataGatewayCommand');
-
-/**
- * TTableGateway class provides several find methods to get data from the database
- * and update, insert, and delete methods.
- *
- * Each method maps the input parameters into a SQL call and executes the SQL
- * against a database connection. The TTableGateway is stateless
- * (with respect to the data and data objects), as its role is to push data back and forth.
- *
- * Example usage:
- * <code>
- * //create a connection
- * $dsn = 'pgsql:host=localhost;dbname=test';
- * $conn = new TDbConnection($dsn, 'dbuser','dbpass');
- *
- * //create a table gateway for table/view named 'address'
- * $table = new TTableGateway('address', $conn);
- *
- * //insert a new row, returns last insert id (if applicable)
- * $id = $table->insert(array('name'=>'wei', 'phone'=>'111111'));
- *
- * $record1 = $table->findByPk($id); //find inserted record
- *
- * //finds all records, returns an iterator
- * $records = $table->findAll();
- * print_r($records->readAll());
- *
- * //update the row
- * $table->updateByPk($record1, $id);
- * </code>
- *
- * All methods that may return more than one row of data will return an
- * TDbDataReader iterator.
- *
- * The OnCreateCommand event is raised when a command is prepared and parameter
- * binding is completed. The parameter object is a TDataGatewayEventParameter of which the
- * {@link TDataGatewayEventParameter::getCommand Command} property can be
- * inspected to obtain the sql query to be executed.
- *
- * The OnExecuteCommand	event is raised when a command is executed and the result
- * from the database was returned. The parameter object is a
- * TDataGatewayResultEventParameter of which the
- * {@link TDataGatewayEventParameter::getResult Result} property contains
- * the data return from the database. The data returned can be changed
- * by setting the {@link TDataGatewayEventParameter::setResult Result} property.
- *
- * <code>
- * $table->OnCreateCommand[] = 'log_it'; //any valid PHP callback statement
- * $table->OnExecuteCommand[] = array($obj, 'method_name'); // calls 'method_name' on $obj
- *
- * function log_it($sender, $param)
- * {
- *     var_dump($param); //TDataGatewayEventParameter object.
- * }
- * </code>
- *
- * @author Wei Zhuo <weizho[at]gmail[dot]com>
- * @version $Id$
- * @package System.Data.DataGateway
- * @since 3.1
- */
-class TTableGateway extends TComponent
-{
-	private $_command;
-	private $_connection;
-
-	/**
-	 * Creates a new generic table gateway for a given table or view name
-	 * and a database connection.
-	 * @param string|TDbTableInfo table or view name or table information.
-	 * @param TDbConnection database connection.
-	 */
-	public function __construct($table,$connection)
-	{
-		$this->_connection=$connection;
-		if(is_string($table))
-			$this->setTableName($table);
-		else if($table instanceof TDbTableInfo)
-			$this->setTableInfo($table);
-		else
-			throw new TDbException('dbtablegateway_invalid_table_info');
-	}
-
-	/**
-	 * @param TDbTableInfo table or view information.
-	 */
-	protected function setTableInfo($tableInfo)
-	{
-		$builder = $tableInfo->createCommandBuilder($this->getDbConnection());
-		$this->initCommandBuilder($builder);
-	}
-
-	/**
-	 * Sets up the command builder for the given table.
-	 * @param string table or view name.
-	 */
-	protected function setTableName($tableName)
-	{
-		Prado::using('System.Data.Common.TDbMetaData');
-		$meta = TDbMetaData::getInstance($this->getDbConnection());
-		$this->initCommandBuilder($meta->createCommandBuilder($tableName));
-	}
-
-	public function getTableInfo()
-	{
-		return $this->getCommand()->getTableInfo();
-	}
-
-	public function getTableName()
-	{
-		return $this->getTableInfo()->getTableName();
-	}
-
-	/**
-	 * @param TDbCommandBuilder database specific command builder.
-	 */
-	protected function initCommandBuilder($builder)
-	{
-		$this->_command = new TDataGatewayCommand($builder);
-		$this->_command->OnCreateCommand[] = array($this, 'onCreateCommand');
-		$this->_command->OnExecuteCommand[] = array($this, 'onExecuteCommand');
-	}
-
-	/**
-	 * Raised when a command is prepared and parameter binding is completed.
-	 * The parameter object is TDataGatewayEventParameter of which the
-	 * {@link TDataGatewayEventParameter::getCommand Command} property can be
-	 * inspected to obtain the sql query to be executed.
-	 * @param TDataGatewayCommand originator $sender
-	 * @param TDataGatewayEventParameter
-	 */
-	public function onCreateCommand($sender, $param)
-	{
-		$this->raiseEvent('OnCreateCommand', $this, $param);
-	}
-
-	/**
-	 * Raised when a command is executed and the result from the database was returned.
-	 * The parameter object is TDataGatewayResultEventParameter of which the
-	 * {@link TDataGatewayEventParameter::getResult Result} property contains
-	 * the data return from the database. The data returned can be changed
-	 * by setting the {@link TDataGatewayEventParameter::setResult Result} property.
-	 * @param TDataGatewayCommand originator $sender
-	 * @param TDataGatewayResultEventParameter
-	 */
-	public function onExecuteCommand($sender, $param)
-	{
-		$this->raiseEvent('OnExecuteCommand', $this, $param);
-	}
-
-	/**
-	 * @return TDataGatewayCommand command builder and executor.
-	 */
-	protected function getCommand()
-	{
-		return $this->_command;
-	}
-
-	/**
-	 * @return TDbConnection database connection.
-	 */
-	public function getDbConnection()
-	{
-		return $this->_connection;
-	}
-
-	/**
-	 * Execute arbituary sql command with binding parameters.
-	 * @param string SQL query string.
-	 * @param array binding parameters, positional or named.
-	 * @return array query results.
-	 */
-	public function findBySql($sql, $parameters=array())
-	{
-		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
-		$criteria = $this->getCriteria($sql,$parameters, $args);
-		return $this->getCommand()->findBySql($criteria);
-	}
-
-	/**
-	 * Execute arbituary sql command with binding parameters.
-	 * @param string SQL query string.
-	 * @param array binding parameters, positional or named.
-	 * @return TDbDataReader query results.
-	 */
-	public function findAllBySql($sql, $parameters=array())
-	{
-		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
-		$criteria = $this->getCriteria($sql,$parameters, $args);
-		return $this->getCommand()->findAllBySql($criteria);
-	}
-
-	/**
-	 * Find one single record that matches the criteria.
-	 *
-	 * Usage:
-	 * <code>
-	 * $table->find('username = :name AND password = :pass',
-	 * 					array(':name'=>$name, ':pass'=>$pass));
-	 * $table->find('username = ? AND password = ?', array($name, $pass));
-	 * $table->find('username = ? AND password = ?', $name, $pass);
-	 * //$criteria is of TSqlCriteria
-	 * $table->find($criteria); //the 2nd parameter for find() is ignored.
-	 * </code>
-	 *
-	 * @param string|TSqlCriteria SQL condition or criteria object.
-	 * @param mixed parameter values.
-	 * @return array matching record object.
-	 */
-	public function find($criteria, $parameters=array())
-	{
-		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
-		$criteria = $this->getCriteria($criteria,$parameters, $args);
-		return $this->getCommand()->find($criteria);
-	}
-
-	/**
-	 * Accepts same parameters as find(), but returns TDbDataReader instead.
-	 * @param string|TSqlCriteria SQL condition or criteria object.
-	 * @param mixed parameter values.
-	 * @return TDbDataReader matching records.
-	 */
-	public function findAll($criteria=null, $parameters=array())
-	{
-		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
-		if($criteria!==null)
-			$criteria = $this->getCriteria($criteria,$parameters, $args);
-		return $this->getCommand()->findAll($criteria);
-	}
-
-	/**
-	 * Find one record using only the primary key or composite primary keys. Usage:
-	 *
-	 * <code>
-	 * $table->findByPk($primaryKey);
-	 * $table->findByPk($key1, $key2, ...);
-	 * $table->findByPk(array($key1,$key2,...));
-	 * </code>
-	 *
-	 * @param mixed primary keys
-	 * @return array matching record.
-	 */
-	public function findByPk($keys)
-	{
-		if(func_num_args() > 1)
-			$keys = func_get_args();
-		return $this->getCommand()->findByPk($keys);
-	}
-
-	/**
-	 * Similar to findByPk(), but returns TDbDataReader instead.
-	 *
-	 * For scalar primary keys:
-	 * <code>
-	 * $table->findAllByPk($key1, $key2, ...);
-	 * $table->findAllByPk(array($key1, $key2, ...));
-	 * </code>
-	 *
-	 * For composite keys:
-	 * <code>
-	 * $table->findAllByPk(array($key1, $key2), array($key3, $key4), ...);
-	 * $table->findAllByPk(array(array($key1, $key2), array($key3, $key4), ...));
-	 * </code>
-	 * @param mixed primary keys
-	 * @return TDbDataReader data reader.
-	 */
-	public function findAllByPks($keys)
-	{
-		if(func_num_args() > 1)
-			$keys = func_get_args();
-		return $this->getCommand()->findAllByPk($keys);
-	}
-
-	/**
-	 * Delete records from the table with condition given by $where and
-	 * binding values specified by $parameter argument.
-	 * This method uses additional arguments as $parameters. E.g.
-	 * <code>
-	 * $table->delete('age > ? AND location = ?', $age, $location);
-	 * </code>
-	 * @param string delete condition.
-	 * @param array condition parameters.
-	 * @return integer number of records deleted.
-	 */
-	public function deleteAll($criteria, $parameters=array())
-	{
-		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
-		$criteria = $this->getCriteria($criteria,$parameters, $args);
-		return $this->getCommand()->delete($criteria);
-	}
-
-	/**
-	 * Delete records by primary key. Usage:
-	 *
-	 * <code>
-	 * $table->deleteByPk($primaryKey); //delete 1 record
-	 * $table->deleteByPk($key1,$key2,...); //delete multiple records
-	 * $table->deleteByPk(array($key1,$key2,...)); //delete multiple records
-	 * </code>
-	 *
-	 * For composite primary keys (determined from the table definitions):
-	 * <code>
-	 * $table->deleteByPk(array($key1,$key2)); //delete 1 record
-	 *
-	 * //delete multiple records
-	 * $table->deleteByPk(array($key1,$key2), array($key3,$key4),...);
-	 *
-	 * //delete multiple records
-	 * $table->deleteByPk(array( array($key1,$key2), array($key3,$key4), .. ));
-	 * </code>
-	 *
-	 * @param mixed primary key values.
-	 * @return int number of records deleted.
-	 */
-	public function deleteByPk($keys)
-	{
-		if(func_num_args() > 1)
-			$keys = func_get_args();
-		return $this->getCommand()->deleteByPk($keys);
-	}
-
-	/**
-	 * Alias for deleteByPk()
-	 */
-	public function deleteAllByPks($keys)
-	{
-		if(func_num_args() > 1)
-			$keys = func_get_args();
-		return $this->deleteByPk($keys);
-	}
-
-	/**
-	 * Find the number of records.
-	 * @param string|TSqlCriteria SQL condition or criteria object.
-	 * @param mixed parameter values.
-	 * @return int number of records.
-	 */
-	public function count($criteria=null,$parameters=array())
-	{
-		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
-		if($criteria!==null)
-			$criteria = $this->getCriteria($criteria,$parameters, $args);
-		return $this->getCommand()->count($criteria);
-	}
-
-	/**
-	 * Updates the table with new name-value pair $data. Each array key must
-	 * correspond to a column name in the table. The update condition is
-	 * specified by the $where argument and additional binding values can be
-	 * specified using the $parameter argument.
-	 * This method uses additional arguments as $parameters. E.g.
-	 * <code>
-	 * $gateway->update($data, 'age > ? AND location = ?', $age, $location);
-	 * </code>
-	 * @param array new record data.
-	 * @param string update condition
-	 * @param array additional binding name-value pairs.
-	 * @return integer number of records updated.
-	 */
-	public function update($data, $criteria, $parameters=array())
-	{
-		$args = func_num_args() > 2 ? array_slice(func_get_args(),2) : null;
-		$criteria = $this->getCriteria($criteria,$parameters, $args);
-		return $this->getCommand()->update($data, $criteria);
-	}
-
-	/**
-	 * Inserts a new record into the table. Each array key must
-	 * correspond to a column name in the table unless a null value is permitted.
-	 * @param array new record data.
-	 * @return mixed last insert id if one column contains a serial or sequence,
-	 * otherwise true if command executes successfully and affected 1 or more rows.
-	 */
-	public function insert($data)
-	{
-		return $this->getCommand()->insert($data);
-	}
-
-	/**
-	 * @return mixed last insert id, null if none is found.
-	 */
-	public function getLastInsertId()
-	{
-		return $this->getCommand()->getLastInsertId();
-	}
-
-	/**
-	 * Create a new TSqlCriteria object from a string $criteria. The $args
-	 * are additional parameters and are used in place of the $parameters
-	 * if $parameters is not an array and $args is an arrary.
-	 * @param string|TSqlCriteria sql criteria
-	 * @param mixed parameters passed by the user.
-	 * @param array additional parameters obtained from function_get_args().
-	 * @return TSqlCriteria criteria object.
-	 */
-	protected function getCriteria($criteria, $parameters, $args)
-	{
-		if(is_string($criteria))
-		{
-			$useArgs = !is_array($parameters) && is_array($args);
-			return new TSqlCriteria($criteria,$useArgs ? $args : $parameters);
-		}
-		else if($criteria instanceof TSqlCriteria)
-			return $criteria;
-		else
-			throw new TDbException('dbtablegateway_invalid_criteria');
-	}
-
-	/**
-	 * Dynamic find method using parts of method name as search criteria.
-	 * Method name starting with "findBy" only returns 1 record.
-	 * Method name starting with "findAllBy" returns 0 or more records.
-	 * Method name starting with "deleteBy" deletes records by the trail criteria.
-	 * The condition is taken as part of the method name after "findBy", "findAllBy"
-	 * or "deleteBy".
-	 *
-	 * The following are equivalent:
-	 * <code>
-	 * $table->findByName($name)
-	 * $table->find('Name = ?', $name);
-	 * </code>
-	 * <code>
-	 * $table->findByUsernameAndPassword($name,$pass); // OR may be used
-	 * $table->findBy_Username_And_Password($name,$pass); // _OR_ may be used
-	 * $table->find('Username = ? AND Password = ?', $name, $pass);
-	 * </code>
-	 * <code>
-	 * $table->findAllByAge($age);
-	 * $table->findAll('Age = ?', $age);
-	 * </code>
-	 * <code>
-	 * $table->deleteAll('Name = ?', $name);
-	 * $table->deleteByName($name);
-	 * </code>
-	 * @return mixed single record if method name starts with "findBy", 0 or more records
-	 * if method name starts with "findAllBy"
-	 */
-	public function __call($method,$args)
-	{
-		$delete =false;
-		if($findOne = substr(strtolower($method),0,6)==='findby')
-			$condition = $method[6]==='_' ? substr($method,7) : substr($method,6);
-		else if(substr(strtolower($method),0,9)==='findallby')
-			$condition = $method[9]==='_' ? substr($method,10) : substr($method,9);
-		else if($delete = substr(strtolower($method),0,8)==='deleteby')
-			$condition = $method[8]==='_' ? substr($method,9) : substr($method,8);
-		else if($delete = substr(strtolower($method),0,11)==='deleteallby')
-			$condition = $method[11]==='_' ? substr($method,12) : substr($method,11);
-		else
-			return null;
-
-		$criteria = $this->getCommand()->createCriteriaFromString($method, $condition, $args);
-		if($delete)
-			return $this->deleteAll($criteria);
-		else
-			return $findOne ? $this->find($criteria) : $this->findAll($criteria);
-	}
-}
+ * @license http://www.pradosoft.com/license/
+ * @version $Id$
+ * @package System.Data.DataGateway
+ */
+
+/**
+ * Loads the data gateway command builder and sql criteria.
+ */
+Prado::using('System.Data.DataGateway.TSqlCriteria');
+Prado::using('System.Data.DataGateway.TDataGatewayCommand');
+
+/**
+ * TTableGateway class provides several find methods to get data from the database
+ * and update, insert, and delete methods.
+ *
+ * Each method maps the input parameters into a SQL call and executes the SQL
+ * against a database connection. The TTableGateway is stateless
+ * (with respect to the data and data objects), as its role is to push data back and forth.
+ *
+ * Example usage:
+ * <code>
+ * //create a connection
+ * $dsn = 'pgsql:host=localhost;dbname=test';
+ * $conn = new TDbConnection($dsn, 'dbuser','dbpass');
+ *
+ * //create a table gateway for table/view named 'address'
+ * $table = new TTableGateway('address', $conn);
+ *
+ * //insert a new row, returns last insert id (if applicable)
+ * $id = $table->insert(array('name'=>'wei', 'phone'=>'111111'));
+ *
+ * $record1 = $table->findByPk($id); //find inserted record
+ *
+ * //finds all records, returns an iterator
+ * $records = $table->findAll();
+ * print_r($records->readAll());
+ *
+ * //update the row
+ * $table->updateByPk($record1, $id);
+ * </code>
+ *
+ * All methods that may return more than one row of data will return an
+ * TDbDataReader iterator.
+ *
+ * The OnCreateCommand event is raised when a command is prepared and parameter
+ * binding is completed. The parameter object is a TDataGatewayEventParameter of which the
+ * {@link TDataGatewayEventParameter::getCommand Command} property can be
+ * inspected to obtain the sql query to be executed.
+ *
+ * The OnExecuteCommand	event is raised when a command is executed and the result
+ * from the database was returned. The parameter object is a
+ * TDataGatewayResultEventParameter of which the
+ * {@link TDataGatewayEventParameter::getResult Result} property contains
+ * the data return from the database. The data returned can be changed
+ * by setting the {@link TDataGatewayEventParameter::setResult Result} property.
+ *
+ * <code>
+ * $table->OnCreateCommand[] = 'log_it'; //any valid PHP callback statement
+ * $table->OnExecuteCommand[] = array($obj, 'method_name'); // calls 'method_name' on $obj
+ *
+ * function log_it($sender, $param)
+ * {
+ *     var_dump($param); //TDataGatewayEventParameter object.
+ * }
+ * </code>
+ *
+ * @author Wei Zhuo <weizho[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Data.DataGateway
+ * @since 3.1
+ */
+class TTableGateway extends TComponent
+{
+	private $_command;
+	private $_connection;
+
+	/**
+	 * Creates a new generic table gateway for a given table or view name
+	 * and a database connection.
+	 * @param string|TDbTableInfo table or view name or table information.
+	 * @param TDbConnection database connection.
+	 */
+	public function __construct($table,$connection)
+	{
+		$this->_connection=$connection;
+		if(is_string($table))
+			$this->setTableName($table);
+		else if($table instanceof TDbTableInfo)
+			$this->setTableInfo($table);
+		else
+			throw new TDbException('dbtablegateway_invalid_table_info');
+	}
+
+	/**
+	 * @param TDbTableInfo table or view information.
+	 */
+	protected function setTableInfo($tableInfo)
+	{
+		$builder = $tableInfo->createCommandBuilder($this->getDbConnection());
+		$this->initCommandBuilder($builder);
+	}
+
+	/**
+	 * Sets up the command builder for the given table.
+	 * @param string table or view name.
+	 */
+	protected function setTableName($tableName)
+	{
+		Prado::using('System.Data.Common.TDbMetaData');
+		$meta = TDbMetaData::getInstance($this->getDbConnection());
+		$this->initCommandBuilder($meta->createCommandBuilder($tableName));
+	}
+
+	public function getTableInfo()
+	{
+		return $this->getCommand()->getTableInfo();
+	}
+
+	public function getTableName()
+	{
+		return $this->getTableInfo()->getTableName();
+	}
+
+	/**
+	 * @param TDbCommandBuilder database specific command builder.
+	 */
+	protected function initCommandBuilder($builder)
+	{
+		$this->_command = new TDataGatewayCommand($builder);
+		$this->_command->OnCreateCommand[] = array($this, 'onCreateCommand');
+		$this->_command->OnExecuteCommand[] = array($this, 'onExecuteCommand');
+	}
+
+	/**
+	 * Raised when a command is prepared and parameter binding is completed.
+	 * The parameter object is TDataGatewayEventParameter of which the
+	 * {@link TDataGatewayEventParameter::getCommand Command} property can be
+	 * inspected to obtain the sql query to be executed.
+	 * @param TDataGatewayCommand originator $sender
+	 * @param TDataGatewayEventParameter
+	 */
+	public function onCreateCommand($sender, $param)
+	{
+		$this->raiseEvent('OnCreateCommand', $this, $param);
+	}
+
+	/**
+	 * Raised when a command is executed and the result from the database was returned.
+	 * The parameter object is TDataGatewayResultEventParameter of which the
+	 * {@link TDataGatewayEventParameter::getResult Result} property contains
+	 * the data return from the database. The data returned can be changed
+	 * by setting the {@link TDataGatewayEventParameter::setResult Result} property.
+	 * @param TDataGatewayCommand originator $sender
+	 * @param TDataGatewayResultEventParameter
+	 */
+	public function onExecuteCommand($sender, $param)
+	{
+		$this->raiseEvent('OnExecuteCommand', $this, $param);
+	}
+
+	/**
+	 * @return TDataGatewayCommand command builder and executor.
+	 */
+	protected function getCommand()
+	{
+		return $this->_command;
+	}
+
+	/**
+	 * @return TDbConnection database connection.
+	 */
+	public function getDbConnection()
+	{
+		return $this->_connection;
+	}
+
+	/**
+	 * Execute arbituary sql command with binding parameters.
+	 * @param string SQL query string.
+	 * @param array binding parameters, positional or named.
+	 * @return array query results.
+	 */
+	public function findBySql($sql, $parameters=array())
+	{
+		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
+		$criteria = $this->getCriteria($sql,$parameters, $args);
+		return $this->getCommand()->findBySql($criteria);
+	}
+
+	/**
+	 * Execute arbituary sql command with binding parameters.
+	 * @param string SQL query string.
+	 * @param array binding parameters, positional or named.
+	 * @return TDbDataReader query results.
+	 */
+	public function findAllBySql($sql, $parameters=array())
+	{
+		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
+		$criteria = $this->getCriteria($sql,$parameters, $args);
+		return $this->getCommand()->findAllBySql($criteria);
+	}
+
+	/**
+	 * Find one single record that matches the criteria.
+	 *
+	 * Usage:
+	 * <code>
+	 * $table->find('username = :name AND password = :pass',
+	 * 					array(':name'=>$name, ':pass'=>$pass));
+	 * $table->find('username = ? AND password = ?', array($name, $pass));
+	 * $table->find('username = ? AND password = ?', $name, $pass);
+	 * //$criteria is of TSqlCriteria
+	 * $table->find($criteria); //the 2nd parameter for find() is ignored.
+	 * </code>
+	 *
+	 * @param string|TSqlCriteria SQL condition or criteria object.
+	 * @param mixed parameter values.
+	 * @return array matching record object.
+	 */
+	public function find($criteria, $parameters=array())
+	{
+		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
+		$criteria = $this->getCriteria($criteria,$parameters, $args);
+		return $this->getCommand()->find($criteria);
+	}
+
+	/**
+	 * Accepts same parameters as find(), but returns TDbDataReader instead.
+	 * @param string|TSqlCriteria SQL condition or criteria object.
+	 * @param mixed parameter values.
+	 * @return TDbDataReader matching records.
+	 */
+	public function findAll($criteria=null, $parameters=array())
+	{
+		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
+		if($criteria!==null)
+			$criteria = $this->getCriteria($criteria,$parameters, $args);
+		return $this->getCommand()->findAll($criteria);
+	}
+
+	/**
+	 * Find one record using only the primary key or composite primary keys. Usage:
+	 *
+	 * <code>
+	 * $table->findByPk($primaryKey);
+	 * $table->findByPk($key1, $key2, ...);
+	 * $table->findByPk(array($key1,$key2,...));
+	 * </code>
+	 *
+	 * @param mixed primary keys
+	 * @return array matching record.
+	 */
+	public function findByPk($keys)
+	{
+		if(func_num_args() > 1)
+			$keys = func_get_args();
+		return $this->getCommand()->findByPk($keys);
+	}
+
+	/**
+	 * Similar to findByPk(), but returns TDbDataReader instead.
+	 *
+	 * For scalar primary keys:
+	 * <code>
+	 * $table->findAllByPk($key1, $key2, ...);
+	 * $table->findAllByPk(array($key1, $key2, ...));
+	 * </code>
+	 *
+	 * For composite keys:
+	 * <code>
+	 * $table->findAllByPk(array($key1, $key2), array($key3, $key4), ...);
+	 * $table->findAllByPk(array(array($key1, $key2), array($key3, $key4), ...));
+	 * </code>
+	 * @param mixed primary keys
+	 * @return TDbDataReader data reader.
+	 */
+	public function findAllByPks($keys)
+	{
+		if(func_num_args() > 1)
+			$keys = func_get_args();
+		return $this->getCommand()->findAllByPk($keys);
+	}
+
+	/**
+	 * Delete records from the table with condition given by $where and
+	 * binding values specified by $parameter argument.
+	 * This method uses additional arguments as $parameters. E.g.
+	 * <code>
+	 * $table->delete('age > ? AND location = ?', $age, $location);
+	 * </code>
+	 * @param string delete condition.
+	 * @param array condition parameters.
+	 * @return integer number of records deleted.
+	 */
+	public function deleteAll($criteria, $parameters=array())
+	{
+		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
+		$criteria = $this->getCriteria($criteria,$parameters, $args);
+		return $this->getCommand()->delete($criteria);
+	}
+
+	/**
+	 * Delete records by primary key. Usage:
+	 *
+	 * <code>
+	 * $table->deleteByPk($primaryKey); //delete 1 record
+	 * $table->deleteByPk($key1,$key2,...); //delete multiple records
+	 * $table->deleteByPk(array($key1,$key2,...)); //delete multiple records
+	 * </code>
+	 *
+	 * For composite primary keys (determined from the table definitions):
+	 * <code>
+	 * $table->deleteByPk(array($key1,$key2)); //delete 1 record
+	 *
+	 * //delete multiple records
+	 * $table->deleteByPk(array($key1,$key2), array($key3,$key4),...);
+	 *
+	 * //delete multiple records
+	 * $table->deleteByPk(array( array($key1,$key2), array($key3,$key4), .. ));
+	 * </code>
+	 *
+	 * @param mixed primary key values.
+	 * @return int number of records deleted.
+	 */
+	public function deleteByPk($keys)
+	{
+		if(func_num_args() > 1)
+			$keys = func_get_args();
+		return $this->getCommand()->deleteByPk($keys);
+	}
+
+	/**
+	 * Alias for deleteByPk()
+	 */
+	public function deleteAllByPks($keys)
+	{
+		if(func_num_args() > 1)
+			$keys = func_get_args();
+		return $this->deleteByPk($keys);
+	}
+
+	/**
+	 * Find the number of records.
+	 * @param string|TSqlCriteria SQL condition or criteria object.
+	 * @param mixed parameter values.
+	 * @return int number of records.
+	 */
+	public function count($criteria=null,$parameters=array())
+	{
+		$args = func_num_args() > 1 ? array_slice(func_get_args(),1) : null;
+		if($criteria!==null)
+			$criteria = $this->getCriteria($criteria,$parameters, $args);
+		return $this->getCommand()->count($criteria);
+	}
+
+	/**
+	 * Updates the table with new name-value pair $data. Each array key must
+	 * correspond to a column name in the table. The update condition is
+	 * specified by the $where argument and additional binding values can be
+	 * specified using the $parameter argument.
+	 * This method uses additional arguments as $parameters. E.g.
+	 * <code>
+	 * $gateway->update($data, 'age > ? AND location = ?', $age, $location);
+	 * </code>
+	 * @param array new record data.
+	 * @param string update condition
+	 * @param array additional binding name-value pairs.
+	 * @return integer number of records updated.
+	 */
+	public function update($data, $criteria, $parameters=array())
+	{
+		$args = func_num_args() > 2 ? array_slice(func_get_args(),2) : null;
+		$criteria = $this->getCriteria($criteria,$parameters, $args);
+		return $this->getCommand()->update($data, $criteria);
+	}
+
+	/**
+	 * Inserts a new record into the table. Each array key must
+	 * correspond to a column name in the table unless a null value is permitted.
+	 * @param array new record data.
+	 * @return mixed last insert id if one column contains a serial or sequence,
+	 * otherwise true if command executes successfully and affected 1 or more rows.
+	 */
+	public function insert($data)
+	{
+		return $this->getCommand()->insert($data);
+	}
+
+	/**
+	 * @return mixed last insert id, null if none is found.
+	 */
+	public function getLastInsertId()
+	{
+		return $this->getCommand()->getLastInsertId();
+	}
+
+	/**
+	 * Create a new TSqlCriteria object from a string $criteria. The $args
+	 * are additional parameters and are used in place of the $parameters
+	 * if $parameters is not an array and $args is an arrary.
+	 * @param string|TSqlCriteria sql criteria
+	 * @param mixed parameters passed by the user.
+	 * @param array additional parameters obtained from function_get_args().
+	 * @return TSqlCriteria criteria object.
+	 */
+	protected function getCriteria($criteria, $parameters, $args)
+	{
+		if(is_string($criteria))
+		{
+			$useArgs = !is_array($parameters) && is_array($args);
+			return new TSqlCriteria($criteria,$useArgs ? $args : $parameters);
+		}
+		else if($criteria instanceof TSqlCriteria)
+			return $criteria;
+		else
+			throw new TDbException('dbtablegateway_invalid_criteria');
+	}
+
+	/**
+	 * Dynamic find method using parts of method name as search criteria.
+	 * Method name starting with "findBy" only returns 1 record.
+	 * Method name starting with "findAllBy" returns 0 or more records.
+	 * Method name starting with "deleteBy" deletes records by the trail criteria.
+	 * The condition is taken as part of the method name after "findBy", "findAllBy"
+	 * or "deleteBy".
+	 *
+	 * The following are equivalent:
+	 * <code>
+	 * $table->findByName($name)
+	 * $table->find('Name = ?', $name);
+	 * </code>
+	 * <code>
+	 * $table->findByUsernameAndPassword($name,$pass); // OR may be used
+	 * $table->findBy_Username_And_Password($name,$pass); // _OR_ may be used
+	 * $table->find('Username = ? AND Password = ?', $name, $pass);
+	 * </code>
+	 * <code>
+	 * $table->findAllByAge($age);
+	 * $table->findAll('Age = ?', $age);
+	 * </code>
+	 * <code>
+	 * $table->deleteAll('Name = ?', $name);
+	 * $table->deleteByName($name);
+	 * </code>
+	 * @return mixed single record if method name starts with "findBy", 0 or more records
+	 * if method name starts with "findAllBy"
+	 */
+	public function __call($method,$args)
+	{
+		$delete =false;
+		if($findOne = substr(strtolower($method),0,6)==='findby')
+			$condition = $method[6]==='_' ? substr($method,7) : substr($method,6);
+		else if(substr(strtolower($method),0,9)==='findallby')
+			$condition = $method[9]==='_' ? substr($method,10) : substr($method,9);
+		else if($delete = substr(strtolower($method),0,8)==='deleteby')
+			$condition = $method[8]==='_' ? substr($method,9) : substr($method,8);
+		else if($delete = substr(strtolower($method),0,11)==='deleteallby')
+			$condition = $method[11]==='_' ? substr($method,12) : substr($method,11);
+		else
+			return null;
+
+		$criteria = $this->getCommand()->createCriteriaFromString($method, $condition, $args);
+		if($delete)
+			return $this->deleteAll($criteria);
+		else
+			return $findOne ? $this->find($criteria) : $this->findAll($criteria);
+	}
+}