install_database_errors

install_database_errors($database, $settings_file)

function install_database_errors($database, $settings_file) {
  $errors = array();

  // Check database type.
  $database_types = drupal_get_database_types();
  $driver = $database['driver'];
  if (!isset($database_types[$driver])) {
    $errors['driver'] = t("In your %settings_file file you have configured @drupal to use a %driver server, however your PHP installation currently does not support this database type.", array('%settings_file' => $settings_file, '@drupal' => drupal_install_profile_distribution_name(), '%driver' => $driver));
  }
  else {
    // Run driver specific validation
    $errors += $database_types[$driver]->validateDatabaseSettings($database);
    if (!empty($errors)) {
      // No point to try further.
      return $errors;
    }
    // Run tasks associated with the database type. Any errors are caught in the
    // calling function.
    Database::addConnectionInfo('default', 'default', $database);

    $errors = db_installer_object($driver)->runTasks();
  }
  return $errors;
}