From c790424670a2ebc72c38ae6eb961f3b9afacb17f Mon Sep 17 00:00:00 2001
From: mark_story <mark@mark-story.com>
Date: Thu, 9 Jan 2014 22:02:02 -0500
Subject: [PATCH] Add empty option support.

Add the empty option that FormHelper currently supports.
---
 Cake/View/Input/Radio.php              |  7 +++
 Test/TestCase/View/Input/RadioTest.php | 60 ++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)

diff --git a/Cake/View/Input/Radio.php b/Cake/View/Input/Radio.php
index 2a9e4a2ee1f..1495251fd8f 100644
--- a/Cake/View/Input/Radio.php
+++ b/Cake/View/Input/Radio.php
@@ -66,10 +66,17 @@ public function render($data) {
 			'value' => null,
 			'escape' => true,
 			'label' => true,
+			'empty' => false,
 		];
 		$opts = [];
 		$options = (array)$data['options'];
 		$escape = $data['escape'];
+		if (!empty($data['empty'])) {
+			$empty = $data['empty'] === true ? 'empty' : $data['empty'];
+			$options = ['' => $empty] + $options;
+		}
+		unset($data['empty']);
+
 		foreach ($options as $val => $text) {
 			if (is_int($val) && isset($text['text'], $text['value'])) {
 				$radio = $text;
diff --git a/Test/TestCase/View/Input/RadioTest.php b/Test/TestCase/View/Input/RadioTest.php
index b28d36c43a1..094871a00ff 100644
--- a/Test/TestCase/View/Input/RadioTest.php
+++ b/Test/TestCase/View/Input/RadioTest.php
@@ -108,6 +108,66 @@ public function testRenderComplex() {
 		$this->assertTags($result, $expected);
 	}
 
+/**
+ * Test rendering the empty option.
+ *
+ * @return void
+ */
+	public function testRenderEmptyOption() {
+		$radio = new Radio($this->templates);
+		$data = [
+			'name' => 'Crayons[color]',
+			'options' => ['r' => 'Red'],
+			'empty' => true,
+		];
+		$result = $radio->render($data);
+		$expected = [
+			['input' => [
+				'type' => 'radio',
+				'name' => 'Crayons[color]',
+				'value' => '',
+				'id' => 'Crayons_color'
+			]],
+			['label' => ['for' => 'Crayons_color']],
+			'empty',
+			'/label',
+			['input' => [
+				'type' => 'radio',
+				'name' => 'Crayons[color]',
+				'value' => 'r',
+				'id' => 'Crayons_color_r'
+			]],
+			['label' => ['for' => 'Crayons_color_r']],
+			'Red',
+			'/label',
+		];
+		$this->assertTags($result, $expected);
+
+		$data['empty'] = 'Choose one';
+		$result = $radio->render($data);
+		$expected = [
+			['input' => [
+				'type' => 'radio',
+				'name' => 'Crayons[color]',
+				'value' => '',
+				'id' => 'Crayons_color'
+			]],
+			['label' => ['for' => 'Crayons_color']],
+			'Choose one',
+			'/label',
+			['input' => [
+				'type' => 'radio',
+				'name' => 'Crayons[color]',
+				'value' => 'r',
+				'id' => 'Crayons_color_r'
+			]],
+			['label' => ['for' => 'Crayons_color_r']],
+			'Red',
+			'/label',
+		];
+		$this->assertTags($result, $expected);
+	}
+
 /**
  * test render() and selected inputs.
  *