Update website

admin/phpMyAdmin/libraries/classes/Controllers/Table/Structure/UniqueController.php

@@ -0,0 +1,74 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpMyAdmin\Controllers\Table\Structure;
+
+use PhpMyAdmin\Controllers\Table\AbstractController;
+use PhpMyAdmin\Controllers\Table\StructureController;
+use PhpMyAdmin\DatabaseInterface;
+use PhpMyAdmin\Message;
+use PhpMyAdmin\ResponseRenderer;
+use PhpMyAdmin\Template;
+use PhpMyAdmin\Util;
+
+use function __;
+use function count;
+
+final class UniqueController extends AbstractController
+{
+    /** @var DatabaseInterface */
+    private $dbi;
+
+    /** @var StructureController */
+    private $structureController;
+
+    public function __construct(
+        ResponseRenderer $response,
+        Template $template,
+        string $db,
+        string $table,
+        DatabaseInterface $dbi,
+        StructureController $structureController
+    ) {
+        parent::__construct($response, $template, $db, $table);
+        $this->dbi = $dbi;
+        $this->structureController = $structureController;
+    }
+
+    public function __invoke(): void
+    {
+        global $sql_query, $db, $table, $message;
+
+        $selected = $_POST['selected_fld'] ?? [];
+
+        if (empty($selected)) {
+            $this->response->setRequestStatus(false);
+            $this->response->addJSON('message', __('No column selected.'));
+
+            return;
+        }
+
+        $i = 1;
+        $selectedCount = count($selected);
+        $sql_query = 'ALTER TABLE ' . Util::backquote($table) . ' ADD UNIQUE(';
+
+        foreach ($selected as $field) {
+            $sql_query .= Util::backquote($field);
+            $sql_query .= $i++ === $selectedCount ? ');' : ', ';
+        }
+
+        $this->dbi->selectDb($db);
+        $result = $this->dbi->tryQuery($sql_query);
+
+        if (! $result) {
+            $message = Message::error($this->dbi->getError());
+        }
+
+        if (empty($message)) {
+            $message = Message::success();
+        }
+
+        ($this->structureController)();
+    }
+}