[Sommaire] [Imprimer]

   1  <?php
   2  /**
   3   * TDataSourceSelectParameters, TDataSourceView, TReadOnlyDataSourceView class file
   4   *
   5   * @author Qiang Xue <qiang.xue@gmail.com>
   6   * @link http://www.pradosoft.com/
   7   * @copyright Copyright &copy; 2005 PradoSoft
   8   * @license http://www.pradosoft.com/license/
   9   * @version $Id: TDataSourceView.php 1397 2006-09-07 07:55:53Z wei $
  10   * @package System.Web.UI.WebControls
  11   */
  12  
  13  /**
  14   * TDataSourceSelectParameters class
  15   *
  16   * @author Qiang Xue <qiang.xue@gmail.com>
  17   * @version $Id: TDataSourceView.php 1397 2006-09-07 07:55:53Z wei $
  18   * @package System.Web.UI.WebControls
  19   * @since 3.0
  20   */
  21  class TDataSourceSelectParameters extends TComponent
  22  {
  23      private $_retrieveTotalRowCount=false;
  24      private $_startRowIndex=0;
  25      private $_totalRowCount=0;
  26      private $_maximumRows=0;
  27  
  28  	public function getStartRowIndex()
  29      {
  30          return $this->_startRowIndex;
  31      }
  32  
  33  	public function setStartRowIndex($value)
  34      {
  35          if(($value=TPropertyValue::ensureInteger($value))<0)
  36              $value=0;
  37          $this->_startRowIndex=$value;
  38      }
  39  
  40  	public function getMaximumRows()
  41      {
  42          return $this->_maximumRows;
  43      }
  44  
  45  	public function setMaximumRows($value)
  46      {
  47          if(($value=TPropertyValue::ensureInteger($value))<0)
  48              $value=0;
  49          $this->_maximumRows=$value;
  50      }
  51  
  52  	public function getRetrieveTotalRowCount()
  53      {
  54          return $this->_retrieveTotalRowCount;
  55      }
  56  
  57  	public function setRetrieveTotalRowCount($value)
  58      {
  59          $this->_retrieveTotalRowCount=TPropertyValue::ensureBoolean($value);
  60      }
  61  
  62  	public function getTotalRowCount()
  63      {
  64          return $this->_totalRowCount;
  65      }
  66  
  67  	public function setTotalRowCount($value)
  68      {
  69          if(($value=TPropertyValue::ensureInteger($value))<0)
  70              $value=0;
  71          $this->_totalRowCount=$value;
  72      }
  73  }
  74  
  75  /**
  76   * TDataSourceView class
  77   *
  78   * @author Qiang Xue <qiang.xue@gmail.com>
  79   * @version $Id: TDataSourceView.php 1397 2006-09-07 07:55:53Z wei $
  80   * @package System.Web.UI.WebControls
  81   * @since 3.0
  82   */
  83  abstract class TDataSourceView extends TComponent
  84  {
  85      private $_owner;
  86      private $_name;
  87  
  88  	public function __construct(IDataSource $owner,$viewName)
  89      {
  90          $this->_owner=$owner;
  91          $this->_name=$viewName;
  92      }
  93  
  94      /**
  95       * Performs DB selection based on specified parameters.
  96       * @param ???
  97       * @return Traversable
  98       */
  99      abstract public function select($parameters);
 100  
 101      /**
 102       * Inserts a DB record.
 103       * @param array|TMap
 104       * @return integer affected rows
 105       */
 106  	public function insertAt($values)
 107      {
 108          throw new TNotSupportedException('datasourceview_insert_unsupported');
 109      }
 110  
 111      /**
 112       * Updates DB record(s) with the specified keys and new values
 113       * @param array|TMap keys for specifying the records to be updated
 114       * @param array|TMap new values
 115       * @return integer affected rows
 116       */
 117  	public function update($keys,$values)
 118      {
 119          throw new TNotSupportedException('datasourceview_update_unsupported');
 120      }
 121  
 122      /**
 123       * Deletes DB row(s) with the specified keys.
 124       * @param array|TMap keys for specifying the rows to be deleted
 125       * @return integer affected rows
 126       */
 127  	public function delete($keys)
 128      {
 129          throw new TNotSupportedException('datasourceview_delete_unsupported');
 130      }
 131  
 132  	public function getCanDelete()
 133      {
 134          return false;
 135      }
 136  
 137  	public function getCanInsert()
 138      {
 139          return false;
 140      }
 141  
 142  	public function getCanPage()
 143      {
 144          return false;
 145      }
 146  
 147  	public function getCanGetRowCount()
 148      {
 149          return false;
 150      }
 151  
 152  	public function getCanSort()
 153      {
 154          return false;
 155      }
 156  
 157  	public function getCanUpdate()
 158      {
 159          return false;
 160      }
 161  
 162  	public function getName()
 163      {
 164          return $this->_name;
 165      }
 166  
 167  	public function getDataSource()
 168      {
 169          return $this->_owner;
 170      }
 171  
 172  	public function onDataSourceViewChanged($param)
 173      {
 174          $this->raiseEvent('OnDataSourceViewChanged',$this,$param);
 175      }
 176  }
 177  
 178  /**
 179   * TReadOnlyDataSourceView class
 180   *
 181   * @author Qiang Xue <qiang.xue@gmail.com>
 182   * @version $Id: TDataSourceView.php 1397 2006-09-07 07:55:53Z wei $
 183   * @package System.Web.UI.WebControls
 184   * @since 3.0
 185   */
 186  class TReadOnlyDataSourceView extends TDataSourceView
 187  {
 188      private $_dataSource=null;
 189  
 190  	public function __construct(IDataSource $owner,$viewName,$dataSource)
 191      {
 192          parent::__construct($owner,$viewName);
 193          if($dataSource===null || is_array($dataSource))
 194              $this->_dataSource=new TMap($dataSource);
 195          else if($dataSource instanceof Traversable)
 196              $this->_dataSource=$dataSource;
 197          else
 198              throw new TInvalidDataTypeException('readonlydatasourceview_datasource_invalid');
 199      }
 200  
 201  	public function select($parameters)
 202      {
 203          return $this->_dataSource;
 204      }
 205  }
 206  
 207  ?>