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Revision Autor Zeilennr. Zeile
1 lars 1 
<?php
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/**
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 * TDataSourceSelectParameters, TDataSourceView, TReadOnlyDataSourceView class file
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 *
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 * @author Qiang Xue <qiang.xue@gmail.com>
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 * @link http://www.pradosoft.com/
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 * @copyright Copyright &copy; 2005-2008 PradoSoft
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 * @license http://www.pradosoft.com/license/
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 * @version $Id: TDataSourceView.php 2541 2008-10-21 15:05:13Z qiang.xue $
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 * @package System.Web.UI.WebControls
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 */
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/**
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 * TDataSourceSelectParameters class
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 *
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 * @author Qiang Xue <qiang.xue@gmail.com>
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 * @version $Id: TDataSourceView.php 2541 2008-10-21 15:05:13Z qiang.xue $
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 * @package System.Web.UI.WebControls
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 * @since 3.0
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 */
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class TDataSourceSelectParameters extends TComponent
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{
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	private $_retrieveTotalRowCount=false;
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	private $_startRowIndex=0;
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	private $_totalRowCount=0;
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	private $_maximumRows=0;
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	public function getStartRowIndex()
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	{
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		return $this->_startRowIndex;
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	}
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	public function setStartRowIndex($value)
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	{
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		if(($value=TPropertyValue::ensureInteger($value))<0)
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			$value=0;
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		$this->_startRowIndex=$value;
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	}
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	public function getMaximumRows()
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	{
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		return $this->_maximumRows;
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	}
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	public function setMaximumRows($value)
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	{
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		if(($value=TPropertyValue::ensureInteger($value))<0)
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			$value=0;
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		$this->_maximumRows=$value;
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	}
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	public function getRetrieveTotalRowCount()
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	{
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		return $this->_retrieveTotalRowCount;
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	}
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	public function setRetrieveTotalRowCount($value)
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	{
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		$this->_retrieveTotalRowCount=TPropertyValue::ensureBoolean($value);
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	}
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	public function getTotalRowCount()
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	{
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		return $this->_totalRowCount;
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	}
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	public function setTotalRowCount($value)
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	{
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		if(($value=TPropertyValue::ensureInteger($value))<0)
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			$value=0;
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		$this->_totalRowCount=$value;
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	}
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}
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/**
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 * TDataSourceView class
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 *
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 * @author Qiang Xue <qiang.xue@gmail.com>
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 * @version $Id: TDataSourceView.php 2541 2008-10-21 15:05:13Z qiang.xue $
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 * @package System.Web.UI.WebControls
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 * @since 3.0
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 */
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abstract class TDataSourceView extends TComponent
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{
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	private $_owner;
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	private $_name;
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	public function __construct(IDataSource $owner,$viewName)
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	{
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		$this->_owner=$owner;
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		$this->_name=$viewName;
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	}
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	/**
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	 * Performs DB selection based on specified parameters.
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	 * @param ???
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	 * @return Traversable
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	 */
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	abstract public function select($parameters);
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	/**
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	 * Inserts a DB record.
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	 * @param array|TMap
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	 * @return integer affected rows
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	 */
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	public function insertAt($values)
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	{
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		throw new TNotSupportedException('datasourceview_insert_unsupported');
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	}
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	/**
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	 * Updates DB record(s) with the specified keys and new values
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	 * @param array|TMap keys for specifying the records to be updated
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	 * @param array|TMap new values
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	 * @return integer affected rows
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	 */
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	public function update($keys,$values)
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	{
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		throw new TNotSupportedException('datasourceview_update_unsupported');
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	}
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	/**
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	 * Deletes DB row(s) with the specified keys.
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	 * @param array|TMap keys for specifying the rows to be deleted
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	 * @return integer affected rows
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	 */
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	public function delete($keys)
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	{
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		throw new TNotSupportedException('datasourceview_delete_unsupported');
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	}
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	public function getCanDelete()
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	{
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		return false;
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	}
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	public function getCanInsert()
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	{
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		return false;
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	}
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	public function getCanPage()
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	{
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		return false;
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	}
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	public function getCanGetRowCount()
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	{
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		return false;
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	}
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	public function getCanSort()
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	{
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		return false;
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	}
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	public function getCanUpdate()
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	{
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		return false;
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	}
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	public function getName()
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	{
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		return $this->_name;
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	}
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	public function getDataSource()
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	{
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		return $this->_owner;
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	}
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	public function onDataSourceViewChanged($param)
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	{
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		$this->raiseEvent('OnDataSourceViewChanged',$this,$param);
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	}
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}
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/**
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 * TReadOnlyDataSourceView class
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 *
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 * @author Qiang Xue <qiang.xue@gmail.com>
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 * @version $Id: TDataSourceView.php 2541 2008-10-21 15:05:13Z qiang.xue $
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 * @package System.Web.UI.WebControls
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 * @since 3.0
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 */
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class TReadOnlyDataSourceView extends TDataSourceView
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{
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	private $_dataSource=null;
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	public function __construct(IDataSource $owner,$viewName,$dataSource)
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	{
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		parent::__construct($owner,$viewName);
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		if($dataSource===null || is_array($dataSource))
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			$this->_dataSource=new TMap($dataSource);
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		else if($dataSource instanceof Traversable)
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			$this->_dataSource=$dataSource;
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		else
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			throw new TInvalidDataTypeException('readonlydatasourceview_datasource_invalid');
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	}
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	public function select($parameters)
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	{
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		return $this->_dataSource;
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	}
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}
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