Fix radio() and boolean values.

Boolean values should be cast to integer equivalents, which allows
for correct handling of boolean columns and their string equivalents
used in form options.

Fixes #3512

lib/Cake/Test/Case/View/Helper/FormHelperTest.php

@@ -3407,10 +3407,11 @@ class FormHelperTest extends CakeTestCase {
 
 /**
  * Test that radios with a 0 value are selected under the correct conditions.
+ * Also ensure that values that are booleanish are handled correctly.
  *
  * @return void
  */
-	public function testRadioOptionWithZeroValue() {
+	public function testRadioOptionWithBooleanishValues() {
 		$expected = array(
 			'fieldset' => array(),
 			'legend' => array(),
@@ -3432,6 +3433,9 @@ class FormHelperTest extends CakeTestCase {
 		$result = $this->Form->radio('Model.field', array('1' => 'Yes', '0' => 'No'), array('value' => 0));
 		$this->assertTags($result, $expected);
 
+		$result = $this->Form->radio('Model.field', array('1' => 'Yes', '0' => 'No'), array('value' => false));
+		$this->assertTags($result, $expected);
+
 		$expected = array(
 			'fieldset' => array(),
 			'legend' => array(),
@@ -3456,6 +3460,30 @@ class FormHelperTest extends CakeTestCase {
 
 		$result = $this->Form->radio('Model.field', array('1' => 'Yes', '0' => 'No'));
 		$this->assertTags($result, $expected);
+
+		$expected = array(
+			'fieldset' => array(),
+			'legend' => array(),
+			'Field',
+			'/legend',
+			array('input' => array('type' => 'radio', 'name' => 'data[Model][field]', 'checked' => 'checked', 'value' => '1', 'id' => 'ModelField1')),
+			array('label' => array('for' => 'ModelField1')),
+			'Yes',
+			'/label',
+			array('input' => array('type' => 'radio', 'name' => 'data[Model][field]', 'value' => '0', 'id' => 'ModelField0')),
+			array('label' => array('for' => 'ModelField0')),
+			'No',
+			'/label',
+			'/fieldset'
+		);
+		$result = $this->Form->radio('Model.field', array('1' => 'Yes', '0' => 'No'), array('value' => 1));
+		$this->assertTags($result, $expected);
+
+		$result = $this->Form->radio('Model.field', array('1' => 'Yes', '0' => 'No'), array('value' => '1'));
+		$this->assertTags($result, $expected);
+
+		$result = $this->Form->radio('Model.field', array('1' => 'Yes', '0' => 'No'), array('value' => true));
+		$this->assertTags($result, $expected);
 	}
 
 /**

lib/Cake/View/Helper/FormHelper.php

@@ -1385,6 +1385,10 @@ class FormHelper extends AppHelper {
 		$hiddenField = isset($attributes['hiddenField']) ? $attributes['hiddenField'] : true;
 		unset($attributes['hiddenField']);
 
+		if (isset($value) && is_bool($value)) {
+			$value = $value ? 1 : 0;
+		}
+
 		foreach ($options as $optValue => $optTitle) {
 			$optionsHere = array('value' => $optValue);