/** * Retrieve object using using composite pkey values. * @param int $author_id * @param int $article_id * @param PropelPDO $con * @return AuthorArticle */ public static function retrieveByPK($author_id, $article_id, PropelPDO $con = null) { $key = serialize(array((string) $author_id, (string) $article_id)); if (null !== ($obj = AuthorArticlePeer::getInstanceFromPool($key))) { return $obj; } if ($con === null) { $con = Propel::getConnection(AuthorArticlePeer::DATABASE_NAME, Propel::CONNECTION_READ); } $criteria = new Criteria(AuthorArticlePeer::DATABASE_NAME); $criteria->add(AuthorArticlePeer::AUTHOR_ID, $author_id); $criteria->add(AuthorArticlePeer::ARTICLE_ID, $article_id); $v = AuthorArticlePeer::doSelect($criteria, $con); return !empty($v) ? $v[0] : null; }