class views_plugin_style_rss

Default style plugin to render an RSS feed.

Hierarchy

Expanded class hierarchy of views_plugin_style_rss

Related topics

1 string reference to 'views_plugin_style_rss'
views_views_plugins in includes/plugins.inc
Implements hook_views_plugins().

File

plugins/views_plugin_style_rss.inc, line 13

View source
class views_plugin_style_rss extends views_plugin_style {
    
    /**
     *
     */
    public function attach_to($display_id, $path, $title) {
        $display = $this->view->display[$display_id]->handler;
        $url_options = array();
        $input = $this->view
            ->get_exposed_input();
        if ($input) {
            $url_options['query'] = $input;
        }
        $url_options['absolute'] = TRUE;
        $url = url($this->view
            ->get_url(NULL, $path), $url_options);
        if ($display->has_path()) {
            if (empty($this->preview)) {
                drupal_add_feed($url, $title);
            }
        }
        else {
            if (empty($this->view->feed_icon)) {
                $this->view->feed_icon = '';
            }
            $this->view->feed_icon .= theme('feed_icon', array(
                'url' => $url,
                'title' => $title,
            ));
            drupal_add_html_head_link(array(
                'rel' => 'alternate',
                'type' => 'application/rss+xml',
                'title' => $title,
                'href' => $url,
            ));
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function option_definition() {
        $options = parent::option_definition();
        $options['description'] = array(
            'default' => '',
            'translatable' => TRUE,
        );
        return $options;
    }
    
    /**
     * {@inheritdoc}
     */
    public function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);
        $form['description'] = array(
            '#type' => 'textfield',
            '#title' => t('RSS description'),
            '#default_value' => $this->options['description'],
            '#description' => t('This will appear in the RSS feed itself.'),
            '#maxlength' => 1024,
        );
    }
    
    /**
     * Return an array of additional XHTML elements to add to the channel.
     *
     * @return
     *   An array that can be passed to format_xml_elements().
     */
    public function get_channel_elements() {
        return array();
    }
    
    /**
     * Return an atom:link XHTML element to add to the channel to comply with
     * the RSS 2.0 specification.
     *
     * @see http://validator.w3.org/feed/docs/warning/MissingAtomSelfLink.html
     *
     * @return
     *   An array that can be passed to format_xml_elements().
     */
    public function get_channel_elements_atom_link() {
        $url_options = array(
            'absolute' => TRUE,
        );
        $input = $this->view
            ->get_exposed_input();
        if ($input) {
            $url_options['query'] = $input;
        }
        $url = url($this->view
            ->get_url(), $url_options);
        return array(
            array(
                'namespace' => array(
                    'xmlns:atom' => 'http://www.w3.org/2005/Atom',
                ),
                'key' => 'atom:link',
                'attributes' => array(
                    'href' => $url,
                    'rel' => 'self',
                    'type' => 'application/rss+xml',
                ),
            ),
        );
    }
    
    /**
     * Get RSS feed description.
     *
     * @return string
     *   The string containing the description with the tokens replaced.
     */
    public function get_description() {
        $description = $this->options['description'];
        // Allow substitutions from the first row.
        $description = $this->tokenize_value($description, 0);
        return $description;
    }
    
    /**
     * {@inheritdoc}
     */
    public function render() {
        if (empty($this->row_plugin)) {
            vpr('views_plugin_style_default: Missing row plugin');
            return;
        }
        $rows = '';
        // This will be filled in by the row plugin and is used later on in the
        // theming output.
        $this->namespaces = array(
            'xmlns:dc' => 'http://purl.org/dc/elements/1.1/',
        );
        // Fetch any additional elements for the channel and merge in their
        // namespaces.
        $this->channel_elements = array_merge($this->get_channel_elements(), $this->get_channel_elements_atom_link());
        foreach ($this->channel_elements as $element) {
            if (isset($element['namespace'])) {
                $this->namespaces = array_merge($this->namespaces, $element['namespace']);
            }
        }
        foreach ($this->view->result as $row_index => $row) {
            $this->view->row_index = $row_index;
            $rows .= $this->row_plugin
                ->render($row);
        }
        $output = theme($this->theme_functions(), array(
            'view' => $this->view,
            'options' => $this->options,
            'rows' => $rows,
        ));
        unset($this->view->row_index);
        return $output;
    }

}

Members

Title Sort descending Deprecated Modifiers Object type Summary Overriden Title Overrides
views_object::$definition public property Handler's definition.
views_object::$options public property Except for displays, options for the object will be held here. 1
views_object::altered_option_definition public function Collect this handler's option definition and alter them, ready for use.
views_object::construct public function Views handlers use a special construct function. 4
views_object::export_option public function 1
views_object::export_options public function
views_object::export_option_always public function Always exports the option, regardless of the default value.
views_object::options Deprecated public function Set default options on this object. 1
views_object::set_default_options public function Set default options.
views_object::set_definition public function Let the handler know what its full definition is.
views_object::unpack_options public function Unpack options over our existing defaults, drilling down into arrays so
that defaults don't get totally blown away.
views_object::unpack_translatable public function Unpack a single option definition.
views_object::unpack_translatables public function Unpacks each handler to store translatable texts.
views_object::_set_option_defaults public function
views_plugin::$display public property The current used views display.
views_plugin::$plugin_name public property The plugin name of this plugin, for example table or full.
views_plugin::$plugin_type public property The plugin type of this plugin, for example style or query.
views_plugin::$view public property The top object of a view. Overrides views_object::$view 1
views_plugin::additional_theme_functions public function Provide a list of additional theme functions for the theme info page.
views_plugin::options_submit public function Handle any special handling on the validate form. 9
views_plugin::plugin_title public function Return the human readable name of the display.
views_plugin::summary_title public function Returns the summary of the settings in the display. 8
views_plugin::theme_functions public function Provide a full list of possible theme templates used by this style.
views_plugin_style::$row_plugin public property The row plugin, if it's initialized and the style itself supports it.
views_plugin_style::$row_tokens public property Store all available tokens row rows.
views_plugin_style::build_sort public function Called by the view builder to see if this style handler wants to
interfere with the sorts. If so it should build; if it returns
any non-TRUE value, normal sorting will NOT be added to the query.
1
views_plugin_style::build_sort_post public function Called by the view builder to let the style build a second set of
sorts that will come after any other sorts in the view.
1
views_plugin_style::destroy public function Destructor. Overrides views_object::destroy
views_plugin_style::even_empty public function Should the output of the style plugin be rendered even if it's empty. 1
views_plugin_style::get_field public function Get a rendered field.
views_plugin_style::get_field_value public function Get the raw field value.
views_plugin_style::get_row_class public function Return the token replaced row class for the specified row.
views_plugin_style::init public function Initialize a style plugin.
views_plugin_style::options_validate public function Validate the options form. Overrides views_plugin::options_validate
views_plugin_style::pre_render public function Allow the style to do stuff before each row is rendered.
views_plugin_style::query public function Add anything to the query that we might need to. Overrides views_plugin::query 2
views_plugin_style::render_fields public function Render all of the fields for a given style and store them on the object.
views_plugin_style::render_grouping public function Group records as needed for rendering.
views_plugin_style::render_grouping_sets public function Render the grouping sets.
views_plugin_style::tokenize_value public function Take a value and apply token replacement logic to it.
views_plugin_style::uses_fields public function Return TRUE if this style also uses fields.
views_plugin_style::uses_row_class public function Return TRUE if this style also uses a row plugin.
views_plugin_style::uses_row_plugin public function Return TRUE if this style also uses a row plugin.
views_plugin_style::uses_tokens public function Return TRUE if this style uses tokens.
views_plugin_style::validate public function Validate that the plugin is correct and can be saved. Overrides views_plugin::validate
views_plugin_style_rss::attach_to public function
views_plugin_style_rss::get_channel_elements public function Return an array of additional XHTML elements to add to the channel.
views_plugin_style_rss::get_channel_elements_atom_link public function Return an atom:link XHTML element to add to the channel to comply with
the RSS 2.0 specification.
views_plugin_style_rss::get_description public function Get RSS feed description.
views_plugin_style_rss::options_form public function Provide a form to edit options for this plugin. Overrides views_plugin_style::options_form
views_plugin_style_rss::option_definition public function Information about options for all kinds of purposes will be held here. Overrides views_plugin_style::option_definition
views_plugin_style_rss::render public function Render the display in this style. Overrides views_plugin_style::render