In the InstallSchema.php, I would like to add an unique contraint on a combination of column.

In SQL, it would be done with this request:

ALTER TABLE `linked_cities` ADD UNIQUE `unique_index`(`vendor`, `zip`, `city`);

Is there a way to do that with the Magento ORM in order to avoid any further intervention on the database?


1 Answer 1


Problem solved: in the script, I directly executed the request:

$myRequest = "ALTER TABLE...";
$installer->getConnection()->query($myRequest );

EDIT: finally found how to do it with the Magento methods:

            $installer->getIdxName($tableName, $arrayOfColumnsName),
            ['type' => 'unique']

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