From b997edad105d38703351b89998444ab0828f7d05 Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Mon, 22 Jun 2020 17:38:58 +0200
Subject: Add a dedicated method to get the language for another user

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 lib/private/L10N/Factory.php | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'lib/private/L10N/Factory.php')

diff --git a/lib/private/L10N/Factory.php b/lib/private/L10N/Factory.php
index 9d9e6ac9b26..3ab62de4b97 100644
--- a/lib/private/L10N/Factory.php
+++ b/lib/private/L10N/Factory.php
@@ -358,6 +358,29 @@ class Factory implements IFactory {
 		return new LanguageIterator($user, $this->config);
 	}
 
+	/**
+	 * Return the language to use when sending something to a user
+	 *
+	 * @param IUser|null $user
+	 * @return string
+	 * @since 20.0.0
+	 */
+	public function getUserLanguage(IUser $user = null): string {
+		$language = $this->config->getSystemValue('force_language', false);
+		if ($language !== false) {
+			return $language;
+		}
+
+		if ($user instanceof IUser) {
+			$language = $this->config->getUserValue($user->getUID(), 'core', 'lang', null);
+			if ($language !== null) {
+				return $language;
+			}
+		}
+
+		return $this->config->getSystemValue('default_language', 'en');
+	}
+
 	/**
 	 * @param string $locale
 	 * @return bool
-- 
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