/**
* Get the entity main type for the specified post ID.
*
* @param int $post_id The post ID
*
* @return array|null An array of type properties or null if no term is associated
*/
function wl_entity_type_taxonomy_get_type($post_id)
{
$terms = wp_get_object_terms($post_id, Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME);
if (is_wp_error($terms)) {
// TODO: handle error
return null;
}
// If there are not terms associated, return null.
if (0 === count($terms)) {
return null;
}
// Return the entity type with the specified id.
return Wordlift_Schema_Service::get_instance()->get_schema($terms[0]->slug);
}
/**
* Prints inline JavaScript with the entity types configuration removing duplicates.
*/
function wl_print_entity_type_inline_js()
{
$terms = get_terms(Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME, array('hide_empty' => false));
echo <<<EOF
<script type="text/javascript">
(function() {
var t = [];
EOF;
// Cycle in each WordLift term and get its metadata. The metadata will be printed as a global object in JavaScript
// to be used by the JavaScript client library.
foreach ($terms as $term) {
$term_name = $term->name;
// Load the type data.
$type = Wordlift_Schema_Service::get_instance()->get_schema($term->slug);
// Skip types that are not defined.
if (!empty($type['uri'])) {
// Prepare the JSON output then print it to the browser.
$json = json_encode(array('label' => $term_name, 'uri' => $type['uri'], 'css' => $type['css_class'], 'sameAs' => $type['same_as'], 'templates' => isset($type['templates']) ? $type['templates'] : array()));
// Output the type data.
echo "t.push({$json});\n";
}
}
echo <<<EOF
if ('undefined' == typeof window.wordlift) {
window.wordlift = {}
}
window.wordlift.types = t;
})();
</script>
EOF;
}
/**
* Retrieve entity type custom fields.
*
* @param int $entity_id id of the entity, if any.
*
* @return array|null if $entity_id was specified, return custom_fields for that entity's type. Otherwise returns all custom_fields
*/
function wl_entity_taxonomy_get_custom_fields($entity_id = null)
{
if (is_null($entity_id)) {
// Return all custom fields.
// Get taxonomy terms
$terms = get_terms(Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME, array('hide_empty' => 0));
if (is_wp_error($terms)) {
return null;
}
$custom_fields = array();
foreach ($terms as $term) {
// Get custom_fields
$term_options = Wordlift_Schema_Service::get_instance()->get_schema($term->slug);
$custom_fields[$term_options['uri']] = $term_options['custom_fields'];
}
return $custom_fields;
}
// Return custom fields for this specific entity's type.
$type = wl_entity_type_taxonomy_get_type($entity_id);
return $type['custom_fields'];
}
/**
* Wordlift_Schema_Service constructor.
*
* @since 3.1.0
*/
public function __construct()
{
$this->log_service = Wordlift_Log_Service::get_logger('Wordlift_Schema_Service');
// Create a singleton instance of the Schema service, useful to provide static functions to global functions.
self::$instance = $this;
// Set the taxonomy data.
// Note: parent types must be defined before child types.
$this->schema = array('thing' => $this->get_thing_schema(), 'creative-work' => $this->get_creative_work_schema(), 'event' => $this->get_event_schema(), 'organization' => $this->get_organization_schema(), 'person' => $this->get_person_schema(), 'place' => $this->get_place_schema(), 'localbusiness' => $this->get_local_business_schema());
}
