function rdf_preprocess_node

Implements MODULE_preprocess_HOOK().

File

modules/rdf/rdf.module, line 485

Code

function rdf_preprocess_node(&$variables) {
    // Adds RDFa markup to the node container. The about attribute specifies the
    // URI of the resource described within the HTML element, while the @typeof
    // attribute indicates its RDF type (e.g., foaf:Document, sioc:Person, and so
    // on.)
    $variables['attributes_array']['about'] = empty($variables['node_url']) ? NULL : $variables['node_url'];
    $variables['attributes_array']['typeof'] = empty($variables['node']->rdf_mapping['rdftype']) ? NULL : $variables['node']->rdf_mapping['rdftype'];
    // Adds RDFa markup about the title of the node to the title_suffix.
    if (!empty($variables['node']->rdf_mapping['title']['predicates'])) {
        $variables['title_suffix']['rdf_meta_title'] = array(
            '#theme' => 'rdf_metadata',
            '#metadata' => array(
                array(
                    'property' => $variables['node']->rdf_mapping['title']['predicates'],
                    'content' => $variables['node']->title,
                ),
            ),
        );
    }
    // Adds RDFa markup for the date.
    if (!empty($variables['rdf_mapping']['created'])) {
        $date_attributes_array = rdf_rdfa_attributes($variables['rdf_mapping']['created'], $variables['created']);
        $variables['rdf_template_variable_attributes_array']['date'] = $date_attributes_array;
        if ($variables['submitted']) {
            $variables['rdf_template_variable_attributes_array']['submitted'] = $date_attributes_array;
        }
    }
    // Adds RDFa markup for the relation between the node and its author.
    if (!empty($variables['rdf_mapping']['uid'])) {
        $variables['rdf_template_variable_attributes_array']['name']['rel'] = $variables['rdf_mapping']['uid']['predicates'];
        if ($variables['submitted']) {
            $variables['rdf_template_variable_attributes_array']['submitted']['rel'] = $variables['rdf_mapping']['uid']['predicates'];
        }
    }
    // Adds RDFa markup annotating the number of comments a node has.
    if (isset($variables['node']->comment_count) && !empty($variables['node']->rdf_mapping['comment_count']['predicates']) && user_access('access comments')) {
        // Adds RDFa markup for the comment count near the node title as metadata.
        $variables['title_suffix']['rdf_meta_comment_count'] = array(
            '#theme' => 'rdf_metadata',
            '#metadata' => array(
                array(
                    'property' => $variables['node']->rdf_mapping['comment_count']['predicates'],
                    'content' => $variables['node']->comment_count,
                    'datatype' => $variables['node']->rdf_mapping['comment_count']['datatype'],
                ),
            ),
        );
    }
}