/**
* Process DB schema
*
* @param array $schema Schema
* @param string $type Schema type
*
* @return array
*/
public function processSchema(array $schema, $type)
{
$schema = parent::processSchema($schema, $type);
if (\XLite\Core\Database::SCHEMA_CREATE == $type) {
$schema[] = 'ALTER TABLE `' . $this->getClassMetadata()->getTableName() . '`' . ' ADD CONSTRAINT `session_cell_to_session` FOREIGN KEY `id` (`id`)' . ' REFERENCES `' . $this->_em->getClassMetadata('XLite\\Model\\Session')->getTableName() . '` (`id`)' . ' ON DELETE CASCADE ON UPDATE CASCADE';
} elseif (\XLite\Core\Database::SCHEMA_UPDATE == $type) {
$schema = preg_grep('/DROP FOREIGN KEY `?session_cell_to_session`?/Ss', $schema, PREG_GREP_INVERT);
}
return $schema;
}
