function MigrateLookup::lookup

File

core/modules/migrate/src/MigrateLookup.php, line 35

Class

MigrateLookup

Provides a migration lookup service.

Namespace

Code

public function lookup($migration_id, array $source_id_values) {
  $results = [];
  $migrations = $this->migrationPluginManager
    ->createInstances($migration_id);
  if (!$migrations) {
    if (is_array($migration_id)) {
      if (count($migration_id) != 1) {
        throw new PluginException("Plugin IDs '" . implode("', '", $migration_id) . "' were not found.");
      }
      $migration_id = reset($migration_id);
    }
    throw new PluginNotFoundException($migration_id);
  }
  foreach ($migrations as $migration) {
    if ($result = $this->doLookup($migration, $source_id_values)) {
      $results = array_merge($results, $result);
    }
  }
  return $results;
}