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<?php |
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/** |
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* Taxonomy Term JSON-LD Adapter. |
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* |
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* The {@link Wordlift_Term_JsonLd_Adapter} intercepts calls to terms' pages and loads the related JSON-LD in page. |
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* |
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* @since 3.20.0 |
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* @package Wordlift |
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* @subpackage Wordlift/public |
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*/ |
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/** |
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* Define the {@link Wordlift_Term_JsonLd_Adapter} class. |
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* |
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* @since 3.20.0 |
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*/ |
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class Wordlift_Term_JsonLd_Adapter { |
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/** |
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* The {@link Wordlift_Entity_Uri_Service} instance. |
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* |
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* @since 3.20.0 |
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* @access private |
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* @var \Wordlift_Entity_Uri_Service $entity_uri_service The {@link Wordlift_Entity_Uri_Service} instance. |
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*/ |
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private $entity_uri_service; |
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/** |
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* The {@link Wordlift_Jsonld_Service} instance. |
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* |
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* @since 3.20.0 |
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* @access private |
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* @var \Wordlift_Jsonld_Service $jsonld_service The {@link Wordlift_Jsonld_Service} instance. |
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*/ |
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private $jsonld_service; |
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/** |
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* Wordlift_Term_JsonLd_Adapter constructor. |
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* |
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* @since 3.20.0 |
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* |
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* @param \Wordlift_Entity_Uri_Service $entity_uri_service The {@link Wordlift_Entity_Uri_Service} instance. |
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* @param \Wordlift_Jsonld_Service $jsonld_service The {@link Wordlift_Jsonld_Service} instance. |
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*/ |
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public function __construct( $entity_uri_service, $jsonld_service ) { |
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add_action( 'wp_head', array( $this, 'wp_head' ) ); |
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$this->entity_uri_service = $entity_uri_service; |
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$this->jsonld_service = $jsonld_service; |
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} |
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/** |
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* Hook to `wp_head` to print the JSON-LD. |
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* |
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* @since 3.20.0 |
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*/ |
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public function wp_head() { |
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// Bail out if it's not a category page. |
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if ( ! is_tax() && ! is_category() ) { |
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return; |
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} |
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$term = get_queried_object(); |
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$term_id = $term->term_id; |
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// The `_wl_entity_id` are URIs. |
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$entity_ids = get_term_meta( $term_id, '_wl_entity_id' ); |
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$entity_uri_service = $this->entity_uri_service; |
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$local_entity_ids = array_filter( $entity_ids, function ( $uri ) use ( $entity_uri_service ) { |
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return $entity_uri_service->is_internal( $uri ); |
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} ); |
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// Bail out if there are no entities. |
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if ( empty( $local_entity_ids ) ) { |
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return; |
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} |
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$post = $this->entity_uri_service->get_entity( $local_entity_ids[0] ); |
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$jsonld = $this->jsonld_service->get_jsonld( false, $post->ID ); |
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// Reset the `url` to the term page. |
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$jsonld[0]['url'] = get_term_link( $term_id ); |
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$jsonld_string = wp_json_encode( $jsonld ); |
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echo "<script type=\"application/ld+json\">$jsonld_string</script>"; |
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} |
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} |
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insideout10 /
wordlift-plugin
