From 3a19f36dad5d1565932da89fa231fe1282c5e7c4 Mon Sep 17 00:00:00 2001
From: Finn Schneider <schneider@data-quest.de>
Date: Wed, 8 Oct 2025 10:52:06 +0200
Subject: re #4409 link empty page

---
 app/controllers/course/wiki.php              | 10 +++++++++-
 db/migrations/6.2.2_add_wiki_preliminary.php | 23 +++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 db/migrations/6.2.2_add_wiki_preliminary.php

diff --git a/app/controllers/course/wiki.php b/app/controllers/course/wiki.php
index cf02e04..f3565ad 100644
--- a/app/controllers/course/wiki.php
+++ b/app/controllers/course/wiki.php
@@ -530,6 +530,8 @@ class Course_WikiController extends AuthenticatedController
                     'name'      => $name,
                     'range_id'  => Context::getId(),
                     'parent_id' => Request::option('parent_id', $this->range->getConfiguration()->WIKI_STARTPAGE_ID),
+                    'user_id' => User::findCurrent()->getId(),
+                    'preliminary' => 1
                 ]);
             }
             $this->redirect($this->editURL($page));
@@ -653,7 +655,12 @@ class Course_WikiController extends AuthenticatedController
             '`page_id` = :page_id AND `user_id` = :user_id',
             $pageData
         );
-        $this->redirect($this->pageURL($page));
+        if ($page->preliminary == 1) {
+            $page->delete();
+            $this->redirect($this->allpagesURL());
+        } else {
+            $this->redirect($this->pageURL($page));
+        }
     }
 
     public function delegate_edit_mode_action(WikiPage $page, $user_id)
@@ -704,6 +711,7 @@ class Course_WikiController extends AuthenticatedController
     public function save_action(WikiPage $page)
     {
         CSRFProtection::verifyUnsafeRequest();
+        $page->preliminary = 0;
 
         $this->validateWikiPage($page, $this->range, true);
 
diff --git a/db/migrations/6.2.2_add_wiki_preliminary.php b/db/migrations/6.2.2_add_wiki_preliminary.php
new file mode 100644
index 0000000..8e8b836
--- /dev/null
+++ b/db/migrations/6.2.2_add_wiki_preliminary.php
@@ -0,0 +1,23 @@
+<?php
+
+class AddWikiPreliminary extends Migration
+{
+    public function description(): string
+    {
+        return 'Add preliminary field to wiki_pages.';
+    }
+
+    protected function up(): void
+    {
+        DBManager::get()->exec(
+            "ALTER TABLE `wiki_pages` ADD COLUMN `preliminary` TINYINT NOT NULL DEFAULT 0"
+        );
+    }
+
+    protected function down(): void
+    {
+        DBManager::get()->exec(
+            "ALTER TABLE `wiki_pages` DROP COLUMN `preliminary`"
+        );
+    }
+}
-- 
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