pictcode / lib / Cake / View / XmlView.php @ b3a58ce1
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      <?php
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      /**
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       * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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       * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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       *
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       * Licensed under The MIT License
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       * For full copyright and license information, please see the LICENSE.txt
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       * Redistributions of files must retain the above copyright notice.
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       *
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       * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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       * @link          http://cakephp.org CakePHP(tm) Project
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       * @license       http://www.opensource.org/licenses/mit-license.php MIT License
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       */
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      App::uses('View', 'View');  | 
  
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      App::uses('Xml', 'Utility');  | 
  
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      App::uses('Hash', 'Utility');  | 
  
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      /**
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       * A view class that is used for creating XML responses.
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       *
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       * By setting the '_serialize' key in your controller, you can specify a view variable
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       * that should be serialized to XML and used as the response for the request.
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       * This allows you to omit views + layouts, if your just need to emit a single view
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       * variable as the XML response.
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       *
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       * In your controller, you could do the following:
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       *
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       * `$this->set(array('posts' => $posts, '_serialize' => 'posts'));`
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       *
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       * When the view is rendered, the `$posts` view variable will be serialized
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       * into XML.
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       *
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       * **Note** The view variable you specify must be compatible with Xml::fromArray().
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       *
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       * You can also define `'_serialize'` as an array. This will create an additional
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       * top level element named `<response>` containing all the named view variables:
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       *
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       * ```
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       * $this->set(compact('posts', 'users', 'stuff'));
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       * $this->set('_serialize', array('posts', 'users'));
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       * ```
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       *
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       * The above would generate a XML object that looks like:
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       *
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       * `<response><posts>...</posts><users>...</users></response>`
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       *
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       * If you don't use the `_serialize` key, you will need a view. You can use extended
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       * views to provide layout like functionality.
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       *
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       * @package       Cake.View
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       * @since         CakePHP(tm) v 2.1.0
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       */
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      class XmlView extends View {  | 
  
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      /**
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       * The subdirectory. XML views are always in xml.
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       *
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       * @var string
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       */
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      public $subDir = 'xml';  | 
  
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      /**
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       * Constructor
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       *
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       * @param Controller $controller Controller instance.
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       */
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      public function __construct(Controller $controller = null) {  | 
  
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      parent::__construct($controller);  | 
  
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      if (isset($controller->response) && $controller->response instanceof CakeResponse) {  | 
  
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      $controller->response->type('xml');  | 
  
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      }  | 
  
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      }  | 
  
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      /**
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       * Skip loading helpers if this is a _serialize based view.
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       *
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       * @return void
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       */
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      public function loadHelpers() {  | 
  
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      if (isset($this->viewVars['_serialize'])) {  | 
  
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                              return;
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      }  | 
  
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                      parent::loadHelpers();
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      }  | 
  
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      /**
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       * Render a XML view.
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       *
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       * Uses the special '_serialize' parameter to convert a set of
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       * view variables into a XML response. Makes generating simple
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       * XML responses very easy. You can omit the '_serialize' parameter,
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       * and use a normal view + layout as well.
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       *
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       * @param string $view The view being rendered.
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       * @param string $layout The layout being rendered.
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       * @return string The rendered view.
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       */
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      public function render($view = null, $layout = null) {  | 
  
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      if (isset($this->viewVars['_serialize'])) {  | 
  
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      return $this->_serialize($this->viewVars['_serialize']);  | 
  
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      }  | 
  
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      if ($view !== false && $this->_getViewFileName($view)) {  | 
  
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      return parent::render($view, false);  | 
  
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      }  | 
  
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      }  | 
  
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      /**
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       * Serialize view vars.
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       *
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       * ### Special parameters
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       * `_xmlOptions` You can set an array of custom options for Xml::fromArray() this way, e.g.
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       *   'format' as 'attributes' instead of 'tags'.
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       *
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       * @param array $serialize The viewVars that need to be serialized.
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       * @return string The serialized data
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       */
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      protected function _serialize($serialize) {  | 
  
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      $rootNode = isset($this->viewVars['_rootNode']) ? $this->viewVars['_rootNode'] : 'response';  | 
  
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      if (is_array($serialize)) {  | 
  
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      $data = array($rootNode => array());  | 
  
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      foreach ($serialize as $alias => $key) {  | 
  
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      if (is_numeric($alias)) {  | 
  
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      $alias = $key;  | 
  
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      }  | 
  
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      $data[$rootNode][$alias] = $this->viewVars[$key];  | 
  
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      }  | 
  
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                      } else {
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      $data = isset($this->viewVars[$serialize]) ? $this->viewVars[$serialize] : null;  | 
  
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      if (is_array($data) && Hash::numeric(array_keys($data))) {  | 
  
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      $data = array($rootNode => array($serialize => $data));  | 
  
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      }  | 
  
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      }  | 
  
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      $options = array();  | 
  
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      if (isset($this->viewVars['_xmlOptions'])) {  | 
  
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      $options = $this->viewVars['_xmlOptions'];  | 
  
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      }  | 
  
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      if (Configure::read('debug')) {  | 
  
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      $options['pretty'] = true;  | 
  
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      }  | 
  
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      if (isset($options['return']) && strtolower($options['return']) === 'domdocument') {  | 
  
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      return Xml::fromArray($data, $options)->saveXML();  | 
  
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      }  | 
  
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      return Xml::fromArray($data, $options)->asXML();  | 
  
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      }  | 
  
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      }  |