Fatal error: Uncaught Error: Class "AdminerPlugin" not found

[aug70]

5.2.1 (upgraded from 5.1.0) please use latest published or Git
SQLite alpine/sqlite:3.45.3
See below for plugins

    index.php: |-
        <?php
        function adminer_object() {
            // Required to run any plugin.
            include_once(__DIR__ . "/plugins/plugin.php");

            // Load plugins.
            foreach (glob(__DIR__ . "/plugins/*.php") as $file) {
                include_once($file);
            }

            $plugins = [
                new AdminerLoginSqlite()
            ];

            return new AdminerPlugin($plugins);
        }

        // Include original Adminer or Adminer Editor.
        include "./adminer.php";
    login-sqlite.php: |-
        <?php
        # Place in `plugins/`

        /** Enable auto-login for SQLite
        * @link https://www.adminer.org/plugins/#use
        * @author Jakub Vrana, https://www.vrana.cz/
        * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
        * @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 (one or other)
        */
        class AdminerLoginSqlite {

            function login($login, $password) {
                return true;
            }

            function loginForm() {
                ?>
        <script <?php echo nonce()?> type="text/javascript">
        addEventListener('load', function () {
            var driver = document.getElementsByName('auth[driver]')[0];
            if (isTag(driver, 'select')) {
                driver.onchange = function () {
                    var trs = parentTag(driver, 'table').rows;
                    for (var i=1; i < trs.length - 1; i++) {
                        var disabled = /sqlite/.test(driver.value);
                        alterClass(trs[i], 'hidden', disabled);
                        trs[i].getElementsByTagName('input')[0].disabled = disabled;
                    }
                };
            }
            driver.onchange();
        });
        </script>
        <?php
            }

        }

After upgrading to 5.2.1 from 5.1.0 I'm getting the below error.
The above config map was working fine in 5.1.0.

Warning: include_once(/var/www/html/plugins/plugin.php): Failed to open stream: No such file or directory in /var/www/html/index.php on line 4

Warning: include_once(): Failed opening '/var/www/html/plugins/plugin.php' for inclusion (include_path='.:/usr/local/lib/php') in /var/www/html/index.php on line 4

Fatal error: Uncaught Error: Class "AdminerPlugin" not found in /var/www/html/index.php:15 Stack trace: #0 /var/www/html/adminer.php(1151): adminer_object() #1 /var/www/html/index.php(19): include('/var/www/html/a...') #2 {main} thrown in /var/www/html/index.php on line 15

[hjsleijster]

You don't need an index.php anymore to configure plugins.

• Rename adminer.php to index.php
• Move the plugin to the new directory adminer-plugins
• Convert the plugin because Adminer in namespaced now.
  There is a script to do this, but in this case you only need to put Adminer\ in front of nonce (line 18)
• Optional: configure your plugin in adminer-plugins.php (https://www.adminer.org/en/plugins/#use)

[vrana]

@hjsleijster, thanks, this is the correct solution.

[aug70]

You don't need an index.php anymore to configure plugins.

• Rename adminer.php to index.php
• Move the plugin to the new directory adminer-plugins
• Convert the plugin because Adminer in namespaced now.
  There is a script to do this, but in this case you only need to put Adminer\ in front of nonce (line 18)
• Optional: configure your plugin in adminer-plugins.php (https://www.adminer.org/en/plugins/#use)

@hjsleijster thank you very much for your quick response. I will try your solution.