[Summary view] [Print] [Text view]

   1  <?php
   2  // $Id: views_plugin_style_rss.inc,v 1.2 2008/12/02 00:02:06 merlinofchaos Exp $
   3  /**
   4   * @file
   5   * Contains the RSS style plugin.
   6   */
   7  
   8  /**
   9   * Default style plugin to render an RSS feed.
  10   *
  11   * @ingroup views_style_plugins
  12   */
  13  class views_plugin_style_rss extends views_plugin_style {
  14    function attach_to($display_id, $path, $title) {
  15      $display = $this->view->display[$display_id]->handler;
  16      $url_options = array();
  17      $input = $this->view->get_exposed_input();
  18      if ($input) {
  19        $url_options['query'] = $input;
  20      }
  21  
  22      $url = url($this->view->get_url(NULL, $path), $url_options);
  23      if ($display->has_path()) {
  24        if (empty($this->preview)) {
  25          drupal_add_feed($url, $title);
  26        }
  27      }
  28      else {
  29        if (empty($this->view->feed_icon)) {
  30          $this->view->feed_icon = '';
  31        }
  32  
  33        $this->view->feed_icon .= theme('feed_icon', $url, $title);
  34        drupal_add_link(array(
  35          'rel' => 'alternate',
  36          'type' => 'application/rss+xml',
  37          'title' => $title,
  38          'href' => $url
  39        ));
  40      }
  41    }
  42  
  43    function option_definition() {
  44      $options = parent::option_definition();
  45  
  46      $options['description'] = array('default' => '', 'translatable' => TRUE);
  47      $options['mission_description'] = array('default' => '', 'translatable' => TRUE);
  48  
  49      return $options;
  50    }
  51  
  52    function options_form(&$form, &$form_state) {
  53      $form['mission_description'] = array(
  54        '#type' => 'checkbox',
  55        '#default_value' => !empty($this->options['mission_description']),
  56        '#title' => t('Use the site mission for the description'),
  57      );
  58      $form['description'] = array(
  59        '#type' => 'textfield',
  60        '#title' => t('RSS description'),
  61        '#default_value' => $this->options['description'],
  62        '#description' => t('This will appear in the RSS feed itself.'),
  63        '#process' => array('views_process_dependency'),
  64        '#dependency' => array('edit-style-options-override' => array(FALSE)),
  65      );
  66    }
  67  
  68    /**
  69     * Return an array of additional XHTML elements to add to the channel.
  70     *
  71     * @return
  72     *   An array that can be passed to format_xml_elements().
  73     */
  74    function get_channel_elements() {
  75      return array();
  76    }
  77  
  78    function render() {
  79      if (empty($this->row_plugin)) {
  80        vpr('views_plugin_style_default: Missing row plugin');
  81        return;
  82      }
  83      $rows = '';
  84  
  85      // This will be filled in by the row plugin and is used later on in the
  86      // theming output.
  87      $this->namespaces = array();
  88  
  89      // Fetch any additional elements for the channel and merge in their
  90      // namespaces.
  91      $this->channel_elements = $this->get_channel_elements();
  92      foreach ($this->channel_elements as $element) {
  93        if (isset($element['namespace'])) {
  94          $this->namespaces = array_merge($this->namespaces, $element['namespace']);
  95        }
  96      }
  97  
  98      foreach ($this->view->result as $row) {
  99        $rows .= $this->row_plugin->render($row);
 100      }
 101  
 102      return theme($this->theme_functions(), $this->view, $this->options, $rows);
 103    }
 104  }