view core/modules/migrate/migrate.install @ 19:fa3358dc1485 tip

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<?php

/**
 * @file
 * Contains install and update functions for Migrate.
 */

/**
 * Remove load plugin references from existing migrations.
 */
function migrate_update_8001() {
  $config_factory = \Drupal::configFactory();
  foreach ($config_factory->listAll('migrate.migration.') as $migration_config_name) {
    $migration = $config_factory->getEditable($migration_config_name);
    $migration->clear('load');
    $migration->save(TRUE);
  }
}