Doctrine\DBAL\Schema\DB2SchemaManager::_getPortableTableForeignKeysList PHP Method

    protected function _getPortableTableForeignKeysList($tableForeignKeys)
    {
        $foreignKeys = array();
        foreach ($tableForeignKeys as $tableForeignKey) {
            $tableForeignKey = array_change_key_case($tableForeignKey, \CASE_LOWER);
            if (!isset($foreignKeys[$tableForeignKey['index_name']])) {
                $foreignKeys[$tableForeignKey['index_name']] = array('local_columns' => array($tableForeignKey['local_column']), 'foreign_table' => $tableForeignKey['foreign_table'], 'foreign_columns' => array($tableForeignKey['foreign_column']), 'name' => $tableForeignKey['index_name'], 'options' => array('onUpdate' => $tableForeignKey['on_update'], 'onDelete' => $tableForeignKey['on_delete']));
            } else {
                $foreignKeys[$tableForeignKey['index_name']]['local_columns'][] = $tableForeignKey['local_column'];
                $foreignKeys[$tableForeignKey['index_name']]['foreign_columns'][] = $tableForeignKey['foreign_column'];
            }
        }
        return parent::_getPortableTableForeignKeysList($foreignKeys);
    }