From f84665ddd628724871fb670b04a0b9cdd3f90def Mon Sep 17 00:00:00 2001
From: Jon Ziebell <ziebelje@gmail.com>
Date: Fri, 12 Aug 2022 21:28:28 -0400
Subject: [PATCH] =?UTF-8?q?Fixed=20#362=20-=20Sensor=20temperature=20shows?=
 =?UTF-8?q?=20-17.8=C2=B0C=20when=20battery=20dies.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 api/cora/database.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/api/cora/database.php b/api/cora/database.php
index 12bec4d..9966bed 100644
--- a/api/cora/database.php
+++ b/api/cora/database.php
@@ -508,7 +508,9 @@ final class database extends \mysqli {
     while($row = $result->fetch_assoc()) {
       // Cast if necessary.
       foreach($float_fields as $float_field) {
-        $row[$float_field] = (float) $row[$float_field];
+        if($row[$float_field] !== null) {
+          $row[$float_field] = (float) $row[$float_field];
+        }
       }
       foreach($boolean_fields as $boolean_field) {
         if($row[$boolean_field] !== null) {