/**
* 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;
}