From b6e91291fbf7227f087e5e041f68f31108f3d124 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Renault?= <clement@meilisearch.com>
Date: Wed, 27 Jan 2021 16:31:57 +0100
Subject: [PATCH] Add a comment to explain Serialize on FacetValue is
 implemented by hand

---
 src/facet/facet_value.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/facet/facet_value.rs b/src/facet/facet_value.rs
index 9630c6634..f311ca3dd 100644
--- a/src/facet/facet_value.rs
+++ b/src/facet/facet_value.rs
@@ -38,6 +38,8 @@ impl From<i64> for FacetValue {
     }
 }
 
+/// We implement Serialize ourselves because we need to always serialize it as a string,
+/// JSON object keys must be strings not numbers.
 impl Serialize for FacetValue {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where