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constant MigrateUpgradeForm::MIGRATE_UPGRADE_ROLLBACK in Migrate Upgrade 8

If a migration has previously run, roll it back and start fresh.

File

src/Form/MigrateUpgradeForm.php, line 37
Contains \Drupal\migrate_upgrade\Form\MigrateUpgradeForm.

Class

MigrateUpgradeForm
Defines a multi-step form for performing direct site upgrades.

Namespace

Drupal\migrate_upgrade\Form

Code

const MIGRATE_UPGRADE_ROLLBACK = 2;