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   1  <?php
   2  /**

   3   * This file implements the WidgetCache class.

   4   *

   5   * This file is part of the evoCore framework - {@link http://evocore.net/}

   6   * See also {@link http://sourceforge.net/projects/evocms/}.

   7   *

   8   * @copyright (c)2003-2007 by Francois PLANQUE - {@link http://fplanque.net/}

   9   *

  10   * {@internal License choice

  11   * - If you have received this file as part of a package, please find the license.txt file in

  12   *   the same folder or the closest folder above for complete license terms.

  13   * - If you have received this file individually (e-g: from http://evocms.cvs.sourceforge.net/)

  14   *   then you must choose one of the following licenses before using the file:

  15   *   - GNU General Public License 2 (GPL) - http://www.opensource.org/licenses/gpl-license.php

  16   *   - Mozilla Public License 1.1 (MPL) - http://www.opensource.org/licenses/mozilla1.1.php

  17   * }}

  18   *

  19   * {@internal Open Source relicensing agreement:

  20   * }}

  21   *

  22   * @package evocore

  23   *

  24   * @author fplanque: Francois PLANQUE

  25   *

  26   * @version $Id: _widgetcache.class.php,v 1.1 2007/06/25 11:01:57 fplanque Exp $

  27   */
  28  if( !defined('EVO_MAIN_INIT') ) die( 'Please, do not access this page directly.' );
  29  
  30  load_class('_core/model/dataobjects/_dataobjectcache.class.php');
  31  
  32  load_class( 'widgets/model/_widget.class.php' );
  33  
  34  /**

  35   * Widget Cache Class

  36   *

  37   * @package evocore

  38   */
  39  class WidgetCache extends DataObjectCache
  40  {
  41      /**

  42       * Cache by container

  43       * @var array of coll_ID => array of container_name => array of Widget

  44       */
  45      var $cache_container_Widget_array = array();
  46  
  47      /**

  48       * Constructor

  49       */
  50  	function WidgetCache()
  51      {
  52          parent::DataObjectCache( 'ComponentWidget', false, 'T_widget', 'wi_', 'wi_ID', NULL, NULL, NULL );
  53      }
  54  
  55  
  56      /**

  57       * @param integer

  58       * @return array of coll_ID => array of container_name => array of Widget

  59       */
  60      function & get_by_coll_ID( $coll_ID )
  61      {
  62          global $DB;
  63  
  64          if( ! isset( $this->cache_container_Widget_array[$coll_ID] ) )
  65          {    // Not in Cache yet:
  66              $sql = 'SELECT *
  67                            FROM T_widget
  68                           WHERE wi_coll_ID = '.$coll_ID.'
  69                           ORDER BY wi_sco_name, wi_order';
  70              $widget_rs = $DB->get_results( $sql, OBJECT, 'Get list of widgets for collection' );
  71  
  72              $this->cache_container_Widget_array[$coll_ID] = array();
  73              for( $i = 0; $i < count( $widget_rs ); $i++ )
  74              {
  75                  // fp> NOTE: object COPYing is weird here but it needs to be like this in PHP4 or all abjects from the loop will look the same

  76                  if( $ComponentWidget = & $this->new_obj( $widget_rs[$i] ) ) // fp> NOTE: no copy because we need copy on the next line anyway!!
  77                  {    // We were able to instantiate the widget:
  78                      // Add to regular cache (but not with $this->add() because we need a COPY!!):

  79                      $this->cache[$ComponentWidget->ID] = $ComponentWidget; // COPY!!!! WEIRD BUT NECESSARY / PHP 4 (fp)

  80                      // This is the cache we're interested in:

  81                      $this->cache_container_Widget_array[$ComponentWidget->coll_ID][$ComponentWidget->sco_name][] = & $this->cache[$ComponentWidget->ID];
  82                  }
  83  
  84                  // TODO: dh> try the next line, and you may be able to assign by reference to $cache or use add()

  85                  unset($ComponentWidget);
  86              }
  87              // pre_dump($this->cache_container_Widget_array[$coll_ID]);

  88          }
  89  
  90          return $this->cache_container_Widget_array[$coll_ID];
  91      }
  92  
  93  
  94      /**

  95       * Instanciate a new object within this cache

  96       */
  97      function & new_obj( $row = NULL )
  98      {
  99          if( $row->wi_type == 'core' )
 100          {
 101              if( ! load_class( 'widgets/widgets/_'.$row->wi_code.'.widget.php', false ) )
 102              {    // For some reason, that widget doesn't seem to exist... (any more?)
 103                  // echo "Widget $row->wi_code could not be loaded! ";

 104                  // TODO: replace with dummy widget in order to give a chance to clean up.

 105                  $r = NULL;
 106                  return $r;
 107              }
 108              $objtype = $row->wi_code.'_Widget';
 109          }
 110          else
 111          {
 112              $objtype = 'ComponentWidget';
 113          }
 114  
 115          // Instantiate a custom object

 116          $obj = new $objtype( $row ); // COPY !!

 117  
 118          return $obj;
 119      }
 120  
 121  
 122      /**

 123       * @param integer

 124       * @param string

 125       * @return array of Widget

 126       */
 127      function & get_by_coll_container( $coll_ID, $container )
 128      {
 129          // Make sure collection is loaded:

 130          $this->get_by_coll_ID( $coll_ID );
 131  
 132          return $this->cache_container_Widget_array[$coll_ID][$container];
 133      }
 134  }
 135  
 136  
 137  /*

 138   * $Log: _widgetcache.class.php,v $

 139   * Revision 1.1  2007/06/25 11:01:57  fplanque

 140   * MODULES (refactored MVC)

 141   *

 142   * Revision 1.3  2007/06/20 21:42:13  fplanque

 143   * implemented working widget/plugin params

 144   *

 145   * Revision 1.2  2007/06/20 14:25:00  fplanque

 146   * fixes

 147   *

 148   * Revision 1.1  2007/06/18 21:25:48  fplanque

 149   * one class per core widget

 150   *

 151   * Revision 1.5  2007/04/26 00:11:06  fplanque

 152   * (c) 2007

 153   *

 154   * Revision 1.4  2007/03/26 17:12:40  fplanque

 155   * allow moving of widgets

 156   *

 157   * Revision 1.3  2007/02/26 03:19:40  fplanque

 158   * hum... I cannot reproduce the old bug anymore :/

 159   *

 160   * Revision 1.2  2007/02/10 18:37:16  blueyed

 161   * doc/todo

 162   *

 163   * Revision 1.1  2007/01/11 20:44:19  fplanque

 164   * skin containers proof of concept

 165   * (no params handling yet though)

 166   */
 167  ?>