From 46c9ef36cb79d898290c152f484b780581ef3c8c Mon Sep 17 00:00:00 2001
From: Carl Schwan <carl@carlschwan.eu>
Date: Mon, 27 Jul 2026 20:12:39 +0200
Subject: [PATCH] feat(UserManager): Add method to create lazy user

This is useful when implementing the ISearchableGroupBackend for
example.

Signed-off-by: Carl Schwan <carl@carlschwan.eu>
---
 lib/private/Group/Database.php |  3 +--
 lib/private/User/Manager.php   |  4 ++++
 lib/public/IUserManager.php    | 13 +++++++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/lib/private/Group/Database.php b/lib/private/Group/Database.php
index a3958775ced65..a37b583e2b157 100644
--- a/lib/private/Group/Database.php
+++ b/lib/private/Group/Database.php
@@ -8,7 +8,6 @@
 
 namespace OC\Group;
 
-use OC\User\LazyUser;
 use OCP\DB\Exception;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\Group\Backend\ABackend;
@@ -425,7 +424,7 @@ public function searchInGroup(string $gid, string $search = '', int $limit = -1,
 		$users = [];
 		$userManager = Server::get(IUserManager::class);
 		while ($row = $result->fetchAssociative()) {
-			$users[$row['uid']] = new LazyUser($row['uid'], $userManager, $row['displayname'] ?? null);
+			$users[$row['uid']] = $userManager->getLazyUser($row['uid'], $row['displayname'] ?? null);
 		}
 		$result->closeCursor();
 
diff --git a/lib/private/User/Manager.php b/lib/private/User/Manager.php
index ec048a2d08a89..6f823ae0162b2 100644
--- a/lib/private/User/Manager.php
+++ b/lib/private/User/Manager.php
@@ -460,6 +460,10 @@ public function createUserFromBackend($uid, $password, UserInterface $backend):
 		return false;
 	}
 
+	public function getLazyUser(string $uid, string $displayName = null, ?IUserBackend $backend = null): IUser {
+		return new LazyUser($uid, $this, $displayName, $backend);
+	}
+
 	/**
 	 * returns how many users per backend exist (if supported by backend)
 	 *
diff --git a/lib/public/IUserManager.php b/lib/public/IUserManager.php
index d37d47c9a7e85..3a618f67bb91f 100644
--- a/lib/public/IUserManager.php
+++ b/lib/public/IUserManager.php
@@ -8,6 +8,9 @@
 
 namespace OCP;
 
+use OC\User\LazyUser;
+use OCP\AppFramework\Attribute\Implementable;
+
 /**
  * Class Manager
  *
@@ -24,6 +27,7 @@
  *
  * @since 8.0.0
  */
+#[Implementable(since: '8.0.0')]
 interface IUserManager {
 	/**
 	 * @since 26.0.0
@@ -161,6 +165,15 @@ public function createUser($uid, $password);
 	 */
 	public function createUserFromBackend($uid, $password, UserInterface $backend);
 
+	/**
+	 * Create a lazy user.
+	 *
+	 * This will create a lazy user object which will be then loaded when needed.
+	 *
+	 * @since 35.0.0
+	 */
+	public function getLazyUser(string $uid, string $displayName = null, ?IUserBackend $backend = null): IUser;
+
 	/**
 	 * Get how many users per backend exist (if supported by backend)
 	 *