From e32d297ae77eb4dc4f82c7de747dff62b657cfc1 Mon Sep 17 00:00:00 2001
From: Kevin Hahn <kevin_hahn@sil.org>
Date: Fri, 29 Nov 2024 14:19:28 +0700
Subject: [PATCH] convert headword to lowercase when sorting in mongo

---
 backend/LfClassicData/LfClassicMiniLcmApi.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/LfClassicData/LfClassicMiniLcmApi.cs b/backend/LfClassicData/LfClassicMiniLcmApi.cs
index cc7945e01..c8c25c8fa 100644
--- a/backend/LfClassicData/LfClassicMiniLcmApi.cs
+++ b/backend/LfClassicData/LfClassicMiniLcmApi.cs
@@ -206,7 +206,7 @@ private async IAsyncEnumerable<Entry> Query(QueryOptions? options = null, string
                                 new BsonDocument("$ne", new BsonArray { new BsonDocument("$trim", new BsonDocument("input", $"$citationForm.{sortWs}.value")), "" }),
                             })
                         },
-                        { "then", $"$citationForm.{sortWs}.value" },
+                        { "then", new BsonDocument("$toLower", $"$citationForm.{sortWs}.value") },
                         { "else", new BsonDocument("$cond", new BsonDocument
                             {
                                 { "if", new BsonDocument("$and", new BsonArray
@@ -216,7 +216,7 @@ private async IAsyncEnumerable<Entry> Query(QueryOptions? options = null, string
                                         new BsonDocument("$ne", new BsonArray { new BsonDocument("$trim", new BsonDocument("input", $"$lexeme.{sortWs}.value")), "" }),
                                     })
                                 },
-                                { "then", $"$lexeme.{sortWs}.value" },
+                                { "then", new BsonDocument("$toLower", $"$lexeme.{sortWs}.value") },
                                 { "else", "" }
                             })
                         }