/**
* 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;
}
