From 3a86bd208c8172d82c377f81adcab7c5184fd0ae Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Sat, 7 Jul 2018 17:22:02 +0200
Subject: [PATCH] Add missing method in `RadioButtonFormField`

See 89f146f98c612e7924de77816920cf9553ef626a
See #2509
---
 .../field/RadioButtonFormField.class.php        | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/system/form/builder/field/RadioButtonFormField.class.php b/wcfsetup/install/files/lib/system/form/builder/field/RadioButtonFormField.class.php
index 0353cb4034..d6cd83e3de 100644
--- a/wcfsetup/install/files/lib/system/form/builder/field/RadioButtonFormField.class.php
+++ b/wcfsetup/install/files/lib/system/form/builder/field/RadioButtonFormField.class.php
@@ -21,7 +21,22 @@ class RadioButtonFormField extends AbstractFormField implements ISelectionFormFi
 	/**
 	 * @inheritDoc
 	 */
-	protected static function supportsNestedOptions(): bool {
+	public function readValue(): IFormField {
+		if ($this->getDocument()->hasRequestData($this->getPrefixedId())) {
+			$value = $this->getDocument()->getRequestData($this->getPrefixedId());
+			
+			if (is_string($value)) {
+				$this->__value = $value;
+			}
+		}
+		
+		return $this;
+	}
+	
+	/**
+	 * @inheritDoc
+	 */
+	public function supportsNestedOptions(): bool {
 		return false;
 	}
 }
-- 
2.20.1