public function convertForeignKeyDescription(Table $table, $row)
{
$data = ['type' => Table::CONSTRAINT_FOREIGN, 'columns' => $row['column_name'], 'references' => [$row['references_table'], $row['references_field']], 'update' => $this->_convertOnClause($row['on_update']), 'delete' => $this->_convertOnClause($row['on_delete'])];
$table->addConstraint($row['name'], $data);
}