From fe4811b2780940a0b76535892f0fef3e9d2db2dd Mon Sep 17 00:00:00 2001
From: Paulus Schoutsen <balloob@gmail.com>
Date: Fri, 31 May 2019 15:51:12 -0700
Subject: [PATCH] Allow saving unit system (#3235)

---
 src/onboarding/onboarding-core-config.ts      | 12 +++++++++++-
 src/panels/config/core/ha-config-core-form.ts | 12 +++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/onboarding/onboarding-core-config.ts b/src/onboarding/onboarding-core-config.ts
index bdba99a0c6..65c4841e59 100644
--- a/src/onboarding/onboarding-core-config.ts
+++ b/src/onboarding/onboarding-core-config.ts
@@ -142,7 +142,11 @@ class OnboardingCoreConfig extends LitElement {
             "ui.panel.config.core.section.core.core_config.unit_system"
           )}
         </div>
-        <paper-radio-group class="flex" .selected=${this._unitSystemValue}>
+        <paper-radio-group
+          class="flex"
+          .selected=${this._unitSystemValue}
+          @selected-changed=${this._unitSystemChanged}
+        >
           <paper-radio-button name="metric" .disabled=${this._working}>
             ${this.hass.localize(
               "ui.panel.config.core.section.core.core_config.unit_system_metric"
@@ -238,6 +242,12 @@ class OnboardingCoreConfig extends LitElement {
     this[`_${target.name}`] = target.value;
   }
 
+  private _unitSystemChanged(
+    ev: PolymerChangedEvent<ConfigUpdateValues["unit_system"]>
+  ) {
+    this._unitSystem = ev.detail.value;
+  }
+
   private async _detect() {
     this._working = true;
     try {
diff --git a/src/panels/config/core/ha-config-core-form.ts b/src/panels/config/core/ha-config-core-form.ts
index 6d363fc4b6..94d25fed73 100644
--- a/src/panels/config/core/ha-config-core-form.ts
+++ b/src/panels/config/core/ha-config-core-form.ts
@@ -129,7 +129,11 @@ class ConfigCoreForm extends LitElement {
                 "ui.panel.config.core.section.core.core_config.unit_system"
               )}
             </div>
-            <paper-radio-group class="flex" .selected=${this._unitSystemValue}>
+            <paper-radio-group
+              class="flex"
+              .selected=${this._unitSystemValue}
+              @selected-changed=${this._unitSystemChanged}
+            >
               <paper-radio-button name="metric" .disabled=${disabled}>
                 ${this.hass.localize(
                   "ui.panel.config.core.section.core.core_config.unit_system_metric"
@@ -209,6 +213,12 @@ class ConfigCoreForm extends LitElement {
     this[`_${target.name}`] = target.value;
   }
 
+  private _unitSystemChanged(
+    ev: PolymerChangedEvent<ConfigUpdateValues["unit_system"]>
+  ) {
+    this._unitSystem = ev.detail.value;
+  }
+
   private async _save() {
     this._working = true;
     try {