Allow 3.x backport of url=>false in 2.x

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

@@ -8607,6 +8607,26 @@ class FormHelperTest extends CakeTestCase {
 		$this->assertTags($result, $expected);
 	}
 
+/**
+ * Test create() with no URL (no "action" attribute for <form> tag)
+ *
+ * @return void
+ */
+	public function testCreateNoUrl() {
+		$result = $this->Form->create(false, array('url' => false));
+		$expected = array(
+			'form' => array(
+				'id' => 'addForm',
+				'method' => 'post',
+				'accept-charset' => strtolower(Configure::read('App.encoding'))
+			),
+			'div' => array('style' => 'display:none;'),
+			'input' => array('type' => 'hidden', 'name' => '_method', 'value' => 'POST'),
+			'/div'
+		);
+		$this->assertTags($result, $expected);
+	}
+
 	/**
  * Test the onsubmit option for create()
  *

lib/Cake/View/Helper/FormHelper.php

@@ -393,7 +393,7 @@ class FormHelper extends AppHelper {
 
 		if ($options['action'] === null && $options['url'] === null) {
 			$options['action'] = $this->request->here(false);
-		} elseif (empty($options['url']) || is_array($options['url'])) {
+		} elseif (is_array($options['url'])) {
 			if (empty($options['url']['controller'])) {
 				if (!empty($model)) {
 					$options['url']['controller'] = Inflector::underscore(Inflector::pluralize($model));
@@ -421,7 +421,6 @@ class FormHelper extends AppHelper {
 		} elseif (is_string($options['url'])) {
 			$options['action'] = $options['url'];
 		}
-		unset($options['url']);
 
 		switch (strtolower($options['type'])) {
 			case 'get':
@@ -442,7 +441,13 @@ class FormHelper extends AppHelper {
 		}
 		$this->requestType = strtolower($options['type']);
 
+		if ($options['action'] === false || $options['url'] === false) {
+			$action = null;
+		} else {
 			$action = $this->url($options['action']);
+		}
+		unset($options['url']);
+
 		$this->_lastAction($options['action']);
 		unset($options['type'], $options['action']);
 
@@ -475,6 +480,10 @@ class FormHelper extends AppHelper {
 			$this->_introspectModel($model, 'fields');
 		}
 
+		if ($action === null) {
+			return $this->Html->useTag('formwithoutaction', $htmlAttributes) . $append;
+		}
+
 		return $this->Html->useTag('form', $action, $htmlAttributes) . $append;
 	}
 

lib/Cake/View/Helper/HtmlHelper.php

@@ -49,6 +49,7 @@ class HtmlHelper extends AppHelper {
 		'link' => '<a href="%s"%s>%s</a>',
 		'mailto' => '<a href="mailto:%s"%s>%s</a>',
 		'form' => '<form action="%s"%s>',
+		'formwithoutaction' => '<form%s>',
 		'formend' => '</form>',
 		'input' => '<input name="%s"%s/>',
 		'textarea' => '<textarea name="%s"%s>%s</textarea>',