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<?php
/**
* TScaffoldBase class file.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005-2008 PradoSoft
* @license http://www.pradosoft.com/license/
* @version $Id$
* @package System.Data.ActiveRecord.Scaffold
*/
/**
* Include the base Active Record class.
*/
Prado::using('System.Data.ActiveRecord.TActiveRecord');
/**
* Base class for Active Record scaffold views.
*
* Provides common properties for all scaffold views (such as, TScaffoldListView,
* TScaffoldEditView, TScaffoldListView and TScaffoldView).
*
* During the OnPrRender stage the default css style file (filename style.css)
* is published and registered. To override the default style, provide your own stylesheet
* file explicitly.
*
* @author Wei Zhuo <weizho[at]gmail[dot]com>
* @version $Id$
* @package System.Data.ActiveRecord.Scaffold
* @since 3.1
*/
abstract class TScaffoldBase extends TTemplateControl
{
/**
* @var TActiveRecord record instance (may be new or retrieved from db)
*/
private $_record;
/**
* @return TDbMetaData table/view information
*/
protected function getTableInfo()
{
$finder = $this->getRecordFinder();
$gateway = $finder->getRecordManager()->getRecordGateWay();
return $gateway->getRecordTableInfo($finder);
}
/**
* @param TActiveRecord record instance
* @return array record property values
*/
protected function getRecordPropertyValues($record)
{
$data = array();
foreach($this->getTableInfo()->getColumns() as $name=>$column)
$data[] = $record->getColumnValue($name);
return $data;
}
/**
* @param TActiveRecord record instance
* @return array record primary key values.
*/
protected function getRecordPkValues($record)
{
$data=array();
foreach($this->getTableInfo()->getColumns() as $name=>$column)
{
if($column->getIsPrimaryKey())
$data[] = $record->getColumnValue($name);
}
return $data;
}
/**
* Name of the Active Record class to be viewed or scaffolded.
* @return string Active Record class name.
*/
public function getRecordClass()
{
return $this->getViewState('RecordClass');
}
/**
* Name of the Active Record class to be viewed or scaffolded.
* @param string Active Record class name.
*/
public function setRecordClass($value)
{
$this->setViewState('RecordClass', $value);
}
/**
* Copy the view details from another scaffold view instance.
* @param TScaffoldBase scaffold view.
*/
protected function copyFrom(TScaffoldBase $obj)
{
$this->_record = $obj->_record;
$this->setRecordClass($obj->getRecordClass());
$this->setEnableDefaultStyle($obj->getEnableDefaultStyle());
}
/**
* Unset the current record instance and table information.
*/
protected function clearRecordObject()
{
$this->_record=null;
}
/**
* Gets the current Active Record instance. Creates new instance if the
* primary key value is null otherwise the record is fetched from the db.
* @param array primary key value
* @return TActiveRecord record instance
*/
protected function getRecordObject($pk=null)
{
if($this->_record===null)
{
if($pk!==null)
{
$this->_record=$this->getRecordFinder()->findByPk($pk);
if($this->_record===null)
throw new TConfigurationException('scaffold_invalid_record_pk',
$this->getRecordClass(), $pk);
}
else
{
$class = $this->getRecordClass();
if($class!==null)
$this->_record=Prado::createComponent($class);
else
{
throw new TConfigurationException('scaffold_invalid_record_class',
$this->getRecordClass(),$this->getID());
}
}
}
return $this->_record;
}
/**
* @param TActiveRecord Active Record instance.
*/
protected function setRecordObject(TActiveRecord $value)
{
$this->_record=$value;
}
/**
* @return TActiveRecord Active Record finder instance
*/
protected function getRecordFinder()
{
return TActiveRecord::finder($this->getRecordClass());
}
/**
* @return string default scaffold stylesheet name
*/
public function getDefaultStyle()
{
return $this->getViewState('DefaultStyle', 'style');
}
/**
* @param string default scaffold stylesheet name
*/
public function setDefaultStyle($value)
{
$this->setViewState('DefaultStyle', TPropertyValue::ensureString($value), 'style');
}
/**
* @return boolean enable default stylesheet, default is true.
*/
public function getEnableDefaultStyle()
{
return $this->getViewState('EnableDefaultStyle', true);
}
/**
* @param boolean enable default stylesheet, default is true.
*/
public function setEnableDefaultStyle($value)
{
return $this->setViewState('EnableDefaultStyle', TPropertyValue::ensureBoolean($value), true);
}
/**
* Publish the default stylesheet file.
*/
public function onPreRender($param)
{
parent::onPreRender($param);
if($this->getEnableDefaultStyle())
{
$url = $this->publishAsset($this->getDefaultStyle().'.css');
$this->getPage()->getClientScript()->registerStyleSheetFile($url,$url);
}
}
}
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