Subversion Repositories SmartDukaan

<?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');
App::uses('Xml', 'Utility');
App::uses('Hash', 'Utility');

/**
 * A view class that is used for creating XML responses.
 *
 * 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' => $posts, '_serialize' => 'posts'));`
 *
 * When the view is rendered, the `$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
 * top level element named `<response>` containing all the named view variables:
 *
 * {{{
 * $this->set(compact('posts', 'users', 'stuff'));
 * $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
 * views to provide layout like functionality.
 *
 * @package       Cake.View
 * @since         CakePHP(tm) v 2.1.0
 */
class XmlView extends View {

/**
 * The subdirectory. XML views are always in xml.
 *
 * @var string
 */
        public $subDir = 'xml';

/**
 * 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('xml');
                }
        }

/**
 * 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 XML view.
 *
 * 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,
 * 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'])) {
                        return $this->_serialize($this->viewVars['_serialize']);
                }
                if ($view !== false && $this->_getViewFileName($view)) {
                        return parent::render($view, false);
                }
        }

/**
 * Serialize view vars.
 *
 * @param array $serialize The viewVars that need to be serialized.
 * @return string The serialized data
 */
        protected function _serialize($serialize) {
                $rootNode = isset($this->viewVars['_rootNode']) ? $this->viewVars['_rootNode'] : 'response';

                if (is_array($serialize)) {
                        $data = array($rootNode => array());
                        foreach ($serialize as $alias => $key) {
                                if (is_numeric($alias)) {
                                        $alias = $key;
                                }
                                $data[$rootNode][$alias] = $this->viewVars[$key];
                        }
                } else {
                        $data = isset($this->viewVars[$serialize]) ? $this->viewVars[$serialize] : null;
                        if (is_array($data) && Hash::numeric(array_keys($data))) {
                                $data = array($rootNode => array($serialize => $data));
                        }
                }

                $options = array();
                if (Configure::read('debug')) {
                        $options['pretty'] = true;
                }

                return Xml::fromArray($data, $options)->asXML();
        }

}