function Database::parseConnectionInfo

Process the configuration file for database information.

Parameters

array $info: The database connection information, as defined in settings.php. The structure of this array depends on the database driver it is connecting to.

File

core/lib/Drupal/Core/Database/Database.php, line 229

Class

Database

Primary front-controller for the database system.

Namespace

Code

public static final function parseConnectionInfo(array $info) {
    // If there is no "driver" property, then we assume it's an array of
    // possible connections for this target. Pick one at random. That allows
    // us to have, for example, multiple replica servers.
    if (empty($info['driver'])) {
        $info = $info[mt_rand(0, count($info) - 1)];
    }
    // Parse the prefix information.
    // @todo in Drupal 10, fail hard if $info['prefix'] is an array.
    // @see https://www.drupal.org/project/drupal/issues/3124382
    if (!isset($info['prefix'])) {
        // Default to an empty prefix.
        $info['prefix'] = '';
    }
    elseif (is_array($info['prefix'])) {
        $prefix = $info['prefix']['default'] ?? '';
        unset($info['prefix']['default']);
        // If there are keys left besides the 'default' one, we are in a
        // multi-prefix scenario (for per-table prefixing, or migrations).
        // In that case, we put the non-default keys in a 'extra_prefix' key
        // to avoid mixing up with the normal 'prefix', which is a string since
        // Drupal 9.1.0.
        if (count($info['prefix'])) {
            $info['extra_prefix'] = $info['prefix'];
        }
        $info['prefix'] = $prefix;
    }
    // Backwards compatibility layer for Drupal 8 style database connection
    // arrays. Those have the wrong 'namespace' key set, or not set at all
    // for core supported database drivers.
    if (empty($info['namespace']) || strpos($info['namespace'], 'Drupal\\Core\\Database\\Driver\\') === 0) {
        switch (strtolower($info['driver'])) {
            case 'mysql':
                $info['namespace'] = 'Drupal\\mysql\\Driver\\Database\\mysql';
                break;
            case 'pgsql':
                $info['namespace'] = 'Drupal\\pgsql\\Driver\\Database\\pgsql';
                break;
            case 'sqlite':
                $info['namespace'] = 'Drupal\\sqlite\\Driver\\Database\\sqlite';
                break;
        }
    }
    // Backwards compatibility layer for Drupal 8 style database connection
    // arrays. Those do not have the 'autoload' key set for core database
    // drivers.
    if (empty($info['autoload'])) {
        switch (trim($info['namespace'], '\\')) {
            case "Drupal\\mysql\\Driver\\Database\\mysql":
                $info['autoload'] = "core/modules/mysql/src/Driver/Database/mysql/";
                break;
            case "Drupal\\pgsql\\Driver\\Database\\pgsql":
                $info['autoload'] = "core/modules/pgsql/src/Driver/Database/pgsql/";
                break;
            case "Drupal\\sqlite\\Driver\\Database\\sqlite":
                $info['autoload'] = "core/modules/sqlite/src/Driver/Database/sqlite/";
                break;
        }
    }
    return $info;
}