/**
* Find object by primary key.
* Propel uses the instance pool to skip the database if the object exists.
* Go fast if the query is untouched.
*
* <code>
* $obj = $c->findPk(array(12, 34, 56), $con);
* </code>
*
* @param array $key Primary key to use for the query
A Primary key composition: [$object_id, $language_id, $revision]
* @param PropelPDO $con an optional connection object
*
* @return LanguageObjectHistory|LanguageObjectHistory[]|mixed the result, formatted by the current formatter
*/
public function findPk($key, $con = null)
{
if ($key === null) {
return null;
}
if (null !== ($obj = LanguageObjectHistoryPeer::getInstanceFromPool(serialize(array((string) $key[0], (string) $key[1], (string) $key[2])))) && !$this->formatter) {
// the object is already in the instance pool
return $obj;
}
if ($con === null) {
$con = Propel::getConnection(LanguageObjectHistoryPeer::DATABASE_NAME, Propel::CONNECTION_READ);
}
$this->basePreSelect($con);
if ($this->formatter || $this->modelAlias || $this->with || $this->select || $this->selectColumns || $this->asColumns || $this->selectModifiers || $this->map || $this->having || $this->joins) {
return $this->findPkComplex($key, $con);
} else {
return $this->findPkSimple($key, $con);
}
}
/**
* Retrieve object using using composite pkey values.
* @param int $object_id
* @param string $language_id
* @param int $revision
* @param PropelPDO $con
* @return LanguageObjectHistory
*/
public static function retrieveByPK($object_id, $language_id, $revision, PropelPDO $con = null)
{
$_instancePoolKey = serialize(array((string) $object_id, (string) $language_id, (string) $revision));
if (null !== ($obj = LanguageObjectHistoryPeer::getInstanceFromPool($_instancePoolKey))) {
return $obj;
}
if ($con === null) {
$con = Propel::getConnection(LanguageObjectHistoryPeer::DATABASE_NAME, Propel::CONNECTION_READ);
}
$criteria = new Criteria(LanguageObjectHistoryPeer::DATABASE_NAME);
$criteria->add(LanguageObjectHistoryPeer::OBJECT_ID, $object_id);
$criteria->add(LanguageObjectHistoryPeer::LANGUAGE_ID, $language_id);
$criteria->add(LanguageObjectHistoryPeer::REVISION, $revision);
$v = LanguageObjectHistoryPeer::doSelect($criteria, $con);
return !empty($v) ? $v[0] : null;
}