/**
* Checks whether the given managed entity exists in the database.
*
* @param object $entity
* @return boolean TRUE if the entity exists in the database, FALSE otherwise.
*/
public function exists($entity, array $extraConditions = array())
{
$criteria = $this->_class->getIdentifierValues($entity);
if ($extraConditions) {
$criteria = array_merge($criteria, $extraConditions);
}
$sql = 'SELECT 1 FROM ' . $this->_class->getQuotedTableName($this->_platform) . ' ' . $this->_getSQLTableAlias($this->_class->name) . ' WHERE ' . $this->_getSelectConditionSQL($criteria);
return (bool) $this->_conn->fetchColumn($sql, array_values($criteria));
}
/**
* Retrieves the default version value which was created
* by the preceding INSERT statement and assigns it back in to the
* entities version field.
*
* @param $class
* @param $entity
* @param $id
*/
protected function _assignDefaultVersionValue($class, $entity, $id)
{
$versionField = $this->_class->versionField;
$identifier = $this->_class->getIdentifierColumnNames();
$versionFieldColumnName = $this->_class->getColumnName($versionField);
//FIXME: Order with composite keys might not be correct
$sql = "SELECT " . $versionFieldColumnName . " FROM " . $class->getQuotedTableName($this->_platform) . " WHERE " . implode(' = ? AND ', $identifier) . " = ?";
$value = $this->_conn->fetchColumn($sql, array_values((array) $id));
$this->_class->setFieldValue($entity, $versionField, $value);
}