From 6f6306b39b7d0d9898dffa8176f8ee76f1be9b23 Mon Sep 17 00:00:00 2001
From: Erik Montnemery <erik@montnemery.com>
Date: Wed, 6 Sep 2023 15:59:30 +0200
Subject: [PATCH] Don't allow changing device class in template binary sensor
 options (#99720)

---
 homeassistant/components/template/config_flow.py | 8 ++++----
 homeassistant/components/template/strings.json   | 1 -
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/homeassistant/components/template/config_flow.py b/homeassistant/components/template/config_flow.py
index 093cbf14098..15be2c52d91 100644
--- a/homeassistant/components/template/config_flow.py
+++ b/homeassistant/components/template/config_flow.py
@@ -40,11 +40,11 @@ from .template_entity import TemplateEntity
 NONE_SENTINEL = "none"
 
 
-def generate_schema(domain: str) -> dict[vol.Marker, Any]:
+def generate_schema(domain: str, flow_type: str) -> dict[vol.Marker, Any]:
     """Generate schema."""
     schema: dict[vol.Marker, Any] = {}
 
-    if domain == Platform.BINARY_SENSOR:
+    if domain == Platform.BINARY_SENSOR and flow_type == "config":
         schema = {
             vol.Optional(CONF_DEVICE_CLASS): selector.SelectSelector(
                 selector.SelectSelectorConfig(
@@ -124,7 +124,7 @@ def options_schema(domain: str) -> vol.Schema:
     """Generate options schema."""
     return vol.Schema(
         {vol.Required(CONF_STATE): selector.TemplateSelector()}
-        | generate_schema(domain),
+        | generate_schema(domain, "option"),
     )
 
 
@@ -135,7 +135,7 @@ def config_schema(domain: str) -> vol.Schema:
             vol.Required(CONF_NAME): selector.TextSelector(),
             vol.Required(CONF_STATE): selector.TemplateSelector(),
         }
-        | generate_schema(domain),
+        | generate_schema(domain, "config"),
     )
 
 
diff --git a/homeassistant/components/template/strings.json b/homeassistant/components/template/strings.json
index 7e5e56a26d6..a0ee31126cd 100644
--- a/homeassistant/components/template/strings.json
+++ b/homeassistant/components/template/strings.json
@@ -33,7 +33,6 @@
     "step": {
       "binary_sensor": {
         "data": {
-          "device_class": "[%key:component::template::config::step::sensor::data::device_class%]",
           "state": "[%key:component::template::config::step::sensor::data::state%]"
         },
         "title": "[%key:component::template::config::step::binary_sensor::title%]"