Determines what version of Drupal the source database contains.

Parameters

\Drupal\Core\Database\Connection $connection: The database connection object.

Return value

string|false A string representing the major branch of Drupal core (e.g. '6' for Drupal 6.x), or FALSE if no valid version is matched.

6 calls to MigrationConfigurationTrait::getLegacyDrupalVersion()

CredentialForm::validateForm in core/modules/migrate_drupal_ui/src/Form/CredentialForm.php

Form validation handler.

CredentialFormTest::getDestinationSiteCredentials in core/modules/migrate_drupal_ui/tests/src/Functional/CredentialFormTest.php

Creates an array of destination site credentials for the Credential form.

CredentialFormTest::getSourceBasePath in core/modules/migrate_drupal_ui/tests/src/Functional/CredentialFormTest.php

Gets the source base path for the concrete test.

MigrateUpgradeTestBase::assertUpgrade in core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php

Asserts the upgrade completed successfully.

MigrateUpgradeTestBase::getCredentials in core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php

Creates an array of credentials for the Credential form.

... See full list

File

core/modules/migrate_drupal/src/MigrationConfigurationTrait.php, line 204

Class

MigrationConfigurationTrait

Configures the appropriate migrations for a given source Drupal database.

Namespace

Drupal\migrate_drupal

Code

public static function getLegacyDrupalVersion(Connection $connection) {
  // Don't assume because a table of that name exists, that it has the columns
  // we're querying. Catch exceptions and report that the source database is
  // not Drupal.
  // Drupal 5/6/7 can be detected by the schema_version in the system table.
  if ($connection->schema()
    ->tableExists('system')) {
    try {
      $version_string = $connection->query('SELECT [schema_version] FROM {system} WHERE [name] = :module', [
        ':module' => 'system',
      ])
        ->fetchField();
    } catch (DatabaseExceptionWrapper $e) {
      // All database errors return FALSE.
    }
  }
  return match (TRUE) {  !isset($version_string) => FALSE,
    (int) $version_string >= 6000 => substr($version_string, 0, 1),
    (int) $version_string >= 1000 => '5',
    default => FALSE,
  
  };
}

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