SimplePie_Cache_DB

Base class for database-based caches.

Defined (1)

The class is defined in the following location(s).

/wp-includes/SimplePie/Cache/DB.php  
  1. abstract class SimplePie_Cache_DB implements SimplePie_Cache_Base 
  2. { 
  3.     /** 
  4.      * Helper for database conversion 
  5.      * 
  6.      * Converts a given {@see SimplePie} object into data to be stored 
  7.      * 
  8.      * @param SimplePie $data 
  9.      * @return array First item is the serialized data for storage, second item is the unique ID for this item 
  10.      */ 
  11.     protected static function prepare_simplepie_object_for_cache($data) 
  12.     { 
  13.         $items = $data->get_items(); 
  14.         $items_by_id = array(); 
  15.  
  16.         if (!empty($items)) 
  17.         { 
  18.             foreach ($items as $item) 
  19.             { 
  20.                 $items_by_id[$item->get_id()] = $item; 
  21.             } 
  22.  
  23.             if (count($items_by_id) !== count($items)) 
  24.             { 
  25.                 $items_by_id = array(); 
  26.                 foreach ($items as $item) 
  27.                 { 
  28.                     $items_by_id[$item->get_id(true)] = $item; 
  29.                 } 
  30.             } 
  31.  
  32.             if (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0])) 
  33.             { 
  34.                 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]; 
  35.             } 
  36.             elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0])) 
  37.             { 
  38.                 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]; 
  39.             } 
  40.             elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0])) 
  41.             { 
  42.                 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]; 
  43.             } 
  44.             elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0])) 
  45.             { 
  46.                 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0]; 
  47.             } 
  48.             else 
  49.             { 
  50.                 $channel = null; 
  51.             } 
  52.  
  53.             if ($channel !== null) 
  54.             { 
  55.                 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry'])) 
  56.                 { 
  57.                     unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']); 
  58.                 } 
  59.                 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry'])) 
  60.                 { 
  61.                     unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']); 
  62.                 } 
  63.                 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item'])) 
  64.                 { 
  65.                     unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']); 
  66.                 } 
  67.                 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item'])) 
  68.                 { 
  69.                     unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']); 
  70.                 } 
  71.                 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item'])) 
  72.                 { 
  73.                     unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']); 
  74.                 } 
  75.             } 
  76.             if (isset($data->data['items'])) 
  77.             { 
  78.                 unset($data->data['items']); 
  79.             } 
  80.             if (isset($data->data['ordered_items'])) 
  81.             { 
  82.                 unset($data->data['ordered_items']); 
  83.             } 
  84.         } 
  85.         return array(serialize($data->data), $items_by_id); 
  86.     } 
  87. }