/lib/Cake/View/JsonView.php - pictcode - Redmine

pictcode / lib / Cake / View / JsonView.php @ 995bd018

       <?php
       /**
        * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
        * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+       *
        * Licensed under The MIT License
        * For full copyright and license information, please see the LICENSE.txt
        * Redistributions of files must retain the above copyright notice.
+       *
        * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
        * @link          http://cakephp.org CakePHP(tm) Project
        * @license       http://www.opensource.org/licenses/mit-license.php MIT License
        */
       App::uses('View', 'View');
       /**
        * A view class that is used for JSON responses.
+       *
        * 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 and layouts if you just need to emit a single view
        * variable as the JSON response.
+       *
        * In your controller, you could do the following:
+       *
        * `$this->set(array('posts' => $posts, '_serialize' => 'posts'));`
+       *
        * When the view is rendered, the `$posts` view variable will be serialized
        * into JSON.
+       *
        * You can also define `'_serialize'` as an array. This will create a top level object containing
        * all the named view variables:
+       *
        * ```
        * $this->set(compact('posts', 'users', 'stuff'));
        * $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
        * views to provide layout-like functionality.
+       *
        * You can also enable JSONP support by setting parameter `_jsonp` to true or a string to specify
        * custom query string paramater name which will contain the callback function name.
+       *
        * @package       Cake.View
        * @since         CakePHP(tm) v 2.1.0
        */
       class JsonView extends View {
       /**
        * JSON views are always located in the 'json' sub directory for
        * controllers' views.
+       *
        * @var string
        */
               public $subDir = 'json';
       /**
        * Constructor
+       *
        * @param Controller $controller Controller instance.
        */
               public function __construct(Controller $controller = null) {
                       parent::__construct($controller);
                       if (isset($controller->response) && $controller->response instanceof CakeResponse) {
                               $controller->response->type('json');
+                      }
+              }
       /**
        * Skip loading helpers if this is a _serialize based view.
+       *
        * @return void
        */
               public function loadHelpers() {
                       if (isset($this->viewVars['_serialize'])) {
                               return;
+                      }
                       parent::loadHelpers();
+              }
       /**
        * Render a JSON view.
+       *
        * ### Special parameters
        * `_serialize` To convert a set of view variables into a JSON response.
        *   Its value can be a string for single variable name or array for multiple names.
        *   You can omit the`_serialize` parameter, and use a normal view + layout as well.
        * `_jsonp` Enables JSONP support and wraps response in callback function provided in query string.
        *   - Setting it to true enables the default query string parameter "callback".
        *   - Setting it to a string value, uses the provided query string parameter for finding the
        *     JSONP callback name.
+       *
        * @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) {
                       $return = null;
                       if (isset($this->viewVars['_serialize'])) {
                               $return = $this->_serialize($this->viewVars['_serialize']);
                       } elseif ($view !== false && $this->_getViewFileName($view)) {
                               $return = parent::render($view, false);
+                      }
                       if (!empty($this->viewVars['_jsonp'])) {
                               $jsonpParam = $this->viewVars['_jsonp'];
                               if ($this->viewVars['_jsonp'] === true) {
                                       $jsonpParam = 'callback';
+                              }
                               if (isset($this->request->query[$jsonpParam])) {
                                       $return = sprintf('%s(%s)', h($this->request->query[$jsonpParam]), $return);
                                       $this->response->type('js');
+                              }
+                      }
                       return $return;
+              }
       /**
        * Serialize view vars
+       *
        * ### Special parameters
        * `_jsonOptions` You can set custom options for json_encode() this way,
        *   e.g. `JSON_HEX_TAG | JSON_HEX_APOS`.
+       *
        * @param array $serialize The viewVars that need to be serialized
        * @throws CakeException
        * @return string The serialized data
        */
               protected function _serialize($serialize) {
                       if (is_array($serialize)) {
                               $data = array();
                               foreach ($serialize as $alias => $key) {
                                       if (is_numeric($alias)) {
                                               $alias = $key;
+                                      }
                                       if (array_key_exists($key, $this->viewVars)) {
                                               $data[$alias] = $this->viewVars[$key];
+                                      }
+                              }
                               $data = !empty($data) ? $data : null;
                       } else {
                               $data = isset($this->viewVars[$serialize]) ? $this->viewVars[$serialize] : null;
+                      }
                       $jsonOptions = 0;
                       if (isset($this->viewVars['_jsonOptions'])) {
                               if ($this->viewVars['_jsonOptions'] === false) {
                                       $jsonOptions = 0;
                               } else {
                                       $jsonOptions = $this->viewVars['_jsonOptions'];
+                              }
+                      }
                       if (version_compare(PHP_VERSION, '5.4.0', '>=') && Configure::read('debug')) {
                               $jsonOptions = $jsonOptions | JSON_PRETTY_PRINT;
+                      }
                       $json = json_encode($data, $jsonOptions);
                       if (function_exists('json_last_error') && json_last_error() !== JSON_ERROR_NONE) {
                               throw new CakeException(json_last_error_msg());
+                      }
                       if ($json === false) {
                               throw new CakeException('Failed to parse JSON');
+                      }
                       return $json;
+              }
+      }