Change serialize to _serialize

Its possible that a developer would use 'serialize' as a legitimate
view variable.  Prefix with an _ to minimize that.

lib/Cake/Test/Case/View/JsonViewTest.php

@@ -39,7 +39,7 @@ public function testRenderWithoutView() {
 		$Response = new CakeResponse();
 		$Controller = new Controller($Request, $Response);
 		$data = array('user' => 'fake', 'list' => array('item1', 'item2'));
-		$Controller->set(array('data' => $data, 'serialize' => 'data'));
+		$Controller->set(array('data' => $data, '_serialize' => 'data'));
 		$View = new JsonView($Controller);
 		$output = $View->render(false);
 
@@ -48,7 +48,7 @@ public function testRenderWithoutView() {
 	}
 
 /**
- * Test render with an array in serialize
+ * Test render with an array in _serialize
  *
  * @return void
  */
@@ -58,7 +58,7 @@ public function testRenderWithoutViewMultiple() {
 		$Controller = new Controller($Request, $Response);
 		$data = array('no' => 'nope', 'user' => 'fake', 'list' => array('item1', 'item2'));
 		$Controller->set($data);
-		$Controller->set('serialize', array('no', 'user'));
+		$Controller->set('_serialize', array('no', 'user'));
 		$View = new JsonView($Controller);
 		$output = $View->render(false);
 

lib/Cake/Test/Case/View/XmlViewTest.php

@@ -39,7 +39,7 @@ public function testRenderWithoutView() {
 		$Response = new CakeResponse();
 		$Controller = new Controller($Request, $Response);
 		$data = array('users' => array('user' => array('user1', 'user2')));
-		$Controller->set(array('users' => $data, 'serialize' => 'users'));
+		$Controller->set(array('users' => $data, '_serialize' => 'users'));
 		$View = new XmlView($Controller);
 		$output = $View->render(false);
 
@@ -49,7 +49,7 @@ public function testRenderWithoutView() {
 	}
 
 /**
- * Test render with an array in serialize
+ * Test render with an array in _serialize
  *
  * @return void
  */
@@ -59,7 +59,7 @@ public function testRenderWithoutViewMultiple() {
 		$Controller = new Controller($Request, $Response);
 		$data = array('no' => 'nope', 'user' => 'fake', 'list' => array('item1', 'item2'));
 		$Controller->set($data);
-		$Controller->set('serialize', array('no', 'user'));
+		$Controller->set('_serialize', array('no', 'user'));
 		$View = new XmlView($Controller);
 		$output = $View->render(false);
 

lib/Cake/View/JsonView.php

@@ -16,31 +16,31 @@
 /**
  * A view class that is used for JSON responses.
  *
- * By setting the 'serialize' key in your controller, you can specify a view variable
+ * By setting the '_serialize' key in your controller, you can specify a view variable
  * that should be serialized to JSON and used as the response for the request.
  * This allows you to omit views + layouts, if your just need to emit a single view
  * variable as the JSON response.
  *
  * In your controller, you could do the following:
  *
- * `$this->set(array('posts' => $posts, 'serialize' => 'posts'));`
+ * `$this->set(array('posts' => $posts, '_serialize' => 'posts'));`
  *
  * When the view is rendered, the `$posts` view variable will be serialized 
  * into JSON.
  *
- * You can also define `'serialize'` as an array.  This will create a top level object containing
+ * You can also define `'_serialize'` as an array.  This will create a top level object containing
  * all the named view variables:
  *
  * {{{
  * $this->set(compact('posts', 'users', 'stuff'));
- * $this->set('serialize', array('posts', 'users'));
+ * $this->set('_serialize', array('posts', 'users'));
  * }}}
  * 
  * The above would generate a JSON object that looks like:
  *
  * `{"posts": [...], "users": [...]}`
  *
- * If you don't use the `serialize` key, you will need a view.  You can use extended
+ * If you don't use the `_serialize` key, you will need a view.  You can use extended
  * views to provide layout like functionality.
  *
  * @package       Cake.View
@@ -73,18 +73,18 @@ public function __construct($controller) {
 /**
  * Render a JSON view.
  *
- * Uses the special 'serialize' parameter to convert a set of
+ * Uses the special '_serialize' parameter to convert a set of
  * view variables into a JSON response.  Makes generating simple 
- * JSON responses very easy.  You can omit the 'serialize' parameter, 
+ * JSON responses very easy.  You can omit the '_serialize' parameter, 
  * and use a normal view + layout as well.
  *
  * @param string $view The view being rendered.
  * @param string $layout The layout being rendered.
  * @return string The rendered view.
  */
 	public function render($view = null, $layout = null) {
-		if (isset($this->viewVars['serialize'])) {
-			$serialize = $this->viewVars['serialize'];
+		if (isset($this->viewVars['_serialize'])) {
+			$serialize = $this->viewVars['_serialize'];
 			if (is_array($serialize)) {
 				$data = array();
 				foreach ($serialize as $key) {

lib/Cake/View/XmlView.php

@@ -17,33 +17,33 @@
 /**
  * A view class that is used for creating XML responses.
  *
- * By setting the 'serialize' key in your controller, you can specify a view variable
+ * By setting the '_serialize' key in your controller, you can specify a view variable
  * that should be serialized to XML and used as the response for the request.
  * This allows you to omit views + layouts, if your just need to emit a single view
  * variable as the XML response.
  *
  * In your controller, you could do the following:
  *
- * `$this->set(array('posts' => $posts, 'serialize' => 'posts'));`
+ * `$this->set(array('posts' => $posts, '_serialize' => 'posts'));`
  *
  * When the view is rendered, the `$posts` view variable will be serialized 
  * into XML.
  *
  * **Note** The view variable you specify must be compatible with Xml::fromArray().
  *
- * You can also define `'serialize'` as an array.  This will create an additional
+ * You can also define `'_serialize'` as an array.  This will create an additional
  * top level element named `<response>` containing all the named view variables:
  *
  * {{{
  * $this->set(compact('posts', 'users', 'stuff'));
- * $this->set('serialize', array('posts', 'users'));
+ * $this->set('_serialize', array('posts', 'users'));
  * }}}
  * 
  * The above would generate a XML object that looks like:
  *
  * `<response><posts>...</posts><users>...</users></response>`
  *
- * If you don't use the `serialize` key, you will need a view.  You can use extended
+ * If you don't use the `_serialize` key, you will need a view.  You can use extended
  * views to provide layout like functionality.
  *
  * @package       Cake.View
@@ -74,18 +74,18 @@ public function __construct($controller) {
 /**
  * Render a XML view.
  *
- * Uses the special 'serialize' parameter to convert a set of
+ * Uses the special '_serialize' parameter to convert a set of
  * view variables into a XML response.  Makes generating simple 
- * XML responses very easy.  You can omit the 'serialize' parameter, 
+ * XML responses very easy.  You can omit the '_serialize' parameter, 
  * and use a normal view + layout as well.
  *
  * @param string $view The view being rendered.
  * @param string $layout The layout being rendered.
  * @return string The rendered view.
  */
 	public function render($view = null, $layout = null) {
-		if (isset($this->viewVars['serialize'])) {
-			$serialize = $this->viewVars['serialize'];
+		if (isset($this->viewVars['_serialize'])) {
+			$serialize = $this->viewVars['_serialize'];
 			if (is_array($serialize)) {
 				$data = array('response' => array());
 				foreach ($serialize as $key) {