Пример #1
0
 /**
  * SPL Countable function
  * Called automatically when attribute is used in a 'count()' function call
  * Caches results when there are no query changes
  *
  * @return int
  * @todo - this is broken
  */
 public function count()
 {
     return count($this->execute());
     $that = $this;
     // New scope with closure to get only PUBLIC properties of object instance (can't include cache property)
     $cacheParams = function () use($that) {
         // This trick doesn't seem to work by itself in PHP 5.4...
         $props = get_object_vars($that);
         // Depends on protected/private properties starting with underscore ('_')
         $publics = array_filter(array_keys($props), function ($key) {
             return strpos($key, '_') !== 0;
         });
         return array_intersect_key($props, array_flip($publics));
     };
     $cacheKey = sha1(var_export($cacheParams(), true)) . "_count";
     $cacheResult = isset($this->cache[$cacheKey]) ? $this->cache[$cacheKey] : false;
     // Check cache
     if ($cacheResult) {
         $result = $cacheResult;
     } else {
         // Execute query
         $result = $this->mapper->getDi()->get($this->mapper->getAdapterName())->count($this);
         // Set cache
         $this->cache[$cacheKey] = $result;
     }
     return is_numeric($result) ? $result : 0;
 }