From 25503060527108b31fe297e2465d7d215cf5410b Mon Sep 17 00:00:00 2001
From: Veloman Yunkan <veloman.yunkan@gmail.com>
Date: Mon, 6 Mar 2023 15:41:01 +0400
Subject: [PATCH] One more usage of Book::getLanguages()

`Book::getLanguages()` is used instead of `Book::getLanguage()` when
determining the set of languages for a collection of books.
---
 src/server/internalServer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/server/internalServer.cpp b/src/server/internalServer.cpp
index 76d1494f7..8db0f81f3 100644
--- a/src/server/internalServer.cpp
+++ b/src/server/internalServer.cpp
@@ -223,7 +223,8 @@ typedef std::set<std::string> Languages;
 Languages getLanguages(const Library& lib, const Library::BookIdSet& bookIds) {
   Languages langs;
   for ( const auto& b : bookIds ) {
-    langs.insert(lib.getBookById(b).getLanguage());
+    const auto bookLangs = lib.getBookById(b).getLanguages();
+    langs.insert(bookLangs.begin(), bookLangs.end());
   }
   return langs;
 }