/**
* Returns an instance of class (singleton pattern implementation).
*
* @return NEWSFEED_BOL_LikeDao
*/
public static function getInstance()
{
if (self::$classInstance === null) {
self::$classInstance = new self();
}
return self::$classInstance;
}
public function removeLikesByUserId($userId)
{
$this->likeDao->removeLikesByUserId($userId);
}