feat(pages.py): add gitea login redirect url property for handling links to repo

home/models/pages.py

@@ -214,6 +214,14 @@ class ModuleLessonPage(Page):
         help_text="URL of the Gitea repository for this lesson (auto-generated if 'create_gitea_repo' is enabled)",
     )
 
+    @property
+    def gitea_login_redirect_url(self):
+        gitea_root_url = getattr(settings, "GITEA_ROOT_URL")
+        if self.gitea_repo_url and gitea_root_url:
+            uri = str(self.gitea_repo_url).replace(gitea_root_url, "")
+            return f"{gitea_root_url}/user/login?redirect_to={uri}"
+        return None
+
     @property
     def module(self):
         if hasattr(self, "get_parent"):