function rdf_field_attach_view_alter

Implements hook_field_attach_view_alter().

File

modules/rdf/rdf.module, line 741

Code

function rdf_field_attach_view_alter(&$output, $context) {
    // Append term mappings on displayed taxonomy links.
    foreach (element_children($output) as $field_name) {
        $element =& $output[$field_name];
        if ($element['#field_type'] == 'taxonomy_term_reference' && $element['#formatter'] == 'taxonomy_term_reference_link') {
            foreach ($element['#items'] as $delta => $item) {
                // This function is invoked during entity preview when taxonomy term
                // reference items might contain free-tagging terms that do not exist
                // yet and thus have no $item['taxonomy_term'].
                if (isset($item['taxonomy_term'])) {
                    $term = $item['taxonomy_term'];
                    if (!empty($term->rdf_mapping['rdftype'])) {
                        $element[$delta]['#options']['attributes']['typeof'] = $term->rdf_mapping['rdftype'];
                    }
                    if (!empty($term->rdf_mapping['name']['predicates'])) {
                        // A property attribute is used with an empty datatype attribute so
                        // the term name is parsed as a plain literal in RDFa 1.0 and 1.1.
                        $element[$delta]['#options']['attributes']['property'] = $term->rdf_mapping['name']['predicates'];
                        $element[$delta]['#options']['attributes']['datatype'] = '';
                    }
                }
            }
        }
    }
}