Source for file OCSP_FRMCONTR_CACHEDLIST_APC.phpclass

Documentation is available at OCSP_FRMCONTR_CACHEDLIST_APC.phpclass

  1. <?php
  2. /**
  3.   * Class file OCSP_FRMCONTR_CACHEDLIST_APC.phpclass
  4.   *
  5.   *
  6.   * @project    Open CSP-Management
  7.   * @package    forms
  8.   * @category   dbms_form
  9.   *
  10.   * @author     Peter Krebs (pk) <pitlinz@users.sourceforge.net>
  11.   * @license    http://opensource.org/licenses/gpl-license.php GNU Public License
  12.   *
  13.   * @since  pk-07-07-02
  14.   *
  15.   ***/
  16.  
  17. require_once dirname(__FILE__)._OCSP_DIRSEP_."OCSP_FRMCONTR_CACHEDLIST.phpclass";
  18.  
  19. /**
  20.   * abstract class OCSP_FRMCONTR_CACHEDLIST
  21.   *
  22.   * @project    Open CSP-Management
  23.   * @package    forms
  24.   * @category   dbms_form
  25.   *
  26.   * @author     Peter Krebs (pk) <pitlinz@users.sourceforge.net>
  27.   * @license    http://opensource.org/licenses/gpl-license.php GNU Public License
  28.   *
  29.   * @since  pk-07-07-02
  30.   *
  31.   */
  32. class OCSP_FRMCONTR_CACHEDLIST_APC extends OCSP_FRMCONTR_CACHEDLIST
  33. {
  34.     /*** class constants  --------------------------------------------- */
  35.  
  36.     /**
  37.       * @constant string CLASS_SRC_FILE
  38.       * 
  39.       * @abstract
  40.       */
  41.     const CLASS_SRC_FILE = __FILE__;
  42.     
  43.     /**
  44.      * type of the cache used
  45.      * 
  46.      * @constant int _MY_FRMLIST_CACHETYPE_
  47.      * @abstract
  48.      * 
  49.      */
  50.     const _MY_FRMLIST_CACHETYPE_ = _OCSP_CACHE_APC_;
  51.         
  52.     /*** class variables  --------------------------------------------- */
  53.     
  54.     /*** compositions ------------------------------------------------  */
  55.  
  56.     /*** aggregation -------------------------------------------------- */
  57.  
  58.     /*** attributes --------------------------------------------------- */
  59.  
  60.       /**
  61.        * @var boolean $myCacheIsValid 
  62.        */
  63.     private $myCacheIsValid=FALSE;
  64.  
  65.     /**
  66.       *
  67.       * METHODS _____________________________________________
  68.       *
  69.       */    
  70.  
  71.     /**
  72.      * returns if the cache is valid and not outtimed
  73.      *
  74.      * @return boolean 
  75.      * 
  76.      * @abstract
  77.      */
  78.     public function cacheIsValid() 
  79.     {
  80.         if ($this->myCacheIsValid) return TRUE;
  81.         return $this->getCachedValues();
  82.     }
  83.  
  84.     
  85.     /**
  86.      * loads the cached values into $this->myCachedRows
  87.      * or filles the cache if this has not happend
  88.      *
  89.      * @param boolean $debug 
  90.      * 
  91.      * @return boolean 
  92.      *
  93.      */
  94.     public function getCachedValues($debug=FALSE)
  95.     {
  96.         if ($this->myCacheRows=apc_fetch('rows_'.$this->getMyCacheKey()))
  97.         {
  98.             // echo "document.getElementById('lstDebug').innerHTML='<pre>".pcf_js_escape(print_r($this->myCacheRows,TRUE))."</pre>';";
  99.             $this->myCacheIsValid=TRUE;
  100.             return TRUE;
  101.         } else {
  102.             return FALSE;
  103.         }
  104.         
  105.     }
  106.     
  107.     /**
  108.      * loads the values from the storage into $this->myCachedRows
  109.      * and cache $this->myCachedRows
  110.      *
  111.      * @param boolan $debug 
  112.      * 
  113.      * @return boolean 
  114.      * 
  115.      */
  116.     public function fillCache($debug=FALSE)
  117.     {
  118.         if ($debug) echoDebugMethod(__FILE__,get_class($this),"OCSP_FRMCONTR_CACHEDLIST_APC::fillCache");
  119.         
  120.         $this->getDBObj($debug);        // ensure $this->myDBObj is set
  121.         $this->getListQuery($debug);    // ensure $this->lstQuery is set        
  122.         
  123.            if (!empty($this->lstQuery))
  124.         {
  125.             $str_query=$this->lstQuery;
  126.             if (sizeof($this->myFilter))
  127.             {
  128.                 if (stristr($str_query,"where"))
  129.                 {
  130.                     $str_query.=" AND (";
  131.                 } else {
  132.                     $str_query.=" WHERE (";
  133.                 }
  134.                 $str_whereAnd="";
  135.                 foreach($this->myFilter as $str_col => $m_val)
  136.                 {
  137.                     if (substr($str_col,0,1)=="?")
  138.                     {
  139.                         $str_query.=$str_whereAnd.$m_val;
  140.                     } else {
  141.                         $str_query.=$str_whereAnd.$str_col."=".$this->myDBObj->qs_getSlashedValue($m_val);
  142.                     }
  143.                     $str_whereAnd=" AND ";
  144.                 }
  145.                 $str_query.=")";
  146.             }
  147.             if ($this->getOrderBy())
  148.             {
  149.                 $str_query.=" ORDER BY ".$this->getOrderBy();
  150.             }
  151.  
  152.             
  153.             if ($this->myCacheRows = $this->myDBObj->queryArray($str_query,-1,-1))
  154.             {
  155.                 //echo "document.getElementById('lstDebug').innerHTML='<pre>".pcf_js_escape(print_r($this->myCacheRows,TRUE))."</pre>';";
  156.                 echo "alert('".pcf_js_escape("apc_store('rows_".$this->getMyCacheKey().",\$this->myCacheRows,\$this->cacheRowTTL)")."');";
  157.                 $this->myCacheKey=apc_store('rows_'.$this->getMyCacheKey(),$this->myCacheRows,$this->cacheRowTTL);
  158.                    $this->fillTime=time();
  159.                    
  160.                    
  161.                    return TRUE;
  162.             } else {
  163.                 echo "alert('".$this->getMyCacheKey().": query failed".pcf_js_escape("\n".$str_query)."');";
  164.             }
  165.         }
  166.         
  167.         return FALSE;
  168.     }    
  169.     
  170.     
  171. }
  172. ?>

Documentation generated on Thu, 08 Jan 2009 17:46:15 +0100 by phpDocumentor 1.4.0a2