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<?php |
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/** |
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* Provide custom taxonomy topic related services. |
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* |
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* @since 3.6.0 |
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*/ |
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class Wordlift_Topic_Taxonomy_Service { |
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/** |
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* The Log service. |
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* |
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* @since 3.6.0 |
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* @access private |
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* @var \Wordlift_Log_Service $log_service The Log service. |
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*/ |
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private $log_service; |
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/** |
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* Taxonomy name. |
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* |
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* @since 3.6.0 |
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*/ |
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const TAXONOMY_NAME = 'wl_topic'; |
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/** |
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* Taxonomy object type. |
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* |
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* @since 3.6.0 |
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*/ |
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const TAXONOMY_OBJECT_TYPE = 'post'; |
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/** |
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* Taxonomy slug. |
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* |
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* @since 3.6.0 |
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*/ |
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const TAXONOMY_SLUG = 'topic'; |
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/** |
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* A singleton instance of the Wordlift_Topic_Taxonomy_Service service. |
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* |
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* @since 3.6.0 |
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* @access private |
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* @var \Wordlift_Topic_Taxonomy_Service $instance A singleton instance of Wordlift_Topic_Taxonomy_Service. |
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*/ |
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private static $instance; |
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/** |
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* Create a Wordlift_Topic_Taxonomy_Service instance. |
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* |
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* @since 3.6.0 |
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* |
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*/ |
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public function __construct() { |
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$this->log_service = Wordlift_Log_Service::get_logger( 'Wordlift_Entity_Service' ); |
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// Set the singleton instance. |
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self::$instance = $this; |
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} |
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/** |
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* Get the singleton instance of the Entity service. |
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* |
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* @since 3.6.0 |
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* @return \Wordlift_Entity_Service The singleton instance of the Entity service. |
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*/ |
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public static function get_instance() { |
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return self::$instance; |
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} |
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/** |
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* Just register the topic taxonomy. |
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* |
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* @since 3.6.0 |
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* |
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*/ |
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public function init() { |
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// See https://codex.wordpress.org/Function_Reference/register_taxonomy |
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$labels = array( |
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'name' => _x( 'Topics', 'taxonomy general name' ), |
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'singular_name' => _x( 'Topic', 'taxonomy singular name' ), |
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'search_items' => __( 'Search Topics' ), |
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'all_items' => __( 'All Topics' ), |
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'parent_item' => __( 'Parent Topic' ), |
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'parent_item_colon' => __( 'Parent Topic:' ), |
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'edit_item' => __( 'Edit Topic' ), |
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'update_item' => __( 'Update Topic' ), |
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'add_new_item' => __( 'Add New Topic' ), |
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'new_item_name' => __( 'New Topic' ), |
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'menu_name' => __( 'Topics' ), |
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); |
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$capabilities = array( |
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'manage_terms' => null, |
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'edit_terms' => null, |
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'delete_terms' => null, |
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'assign_terms' => 'edit_posts' |
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); |
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$args = array( |
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'labels' => $labels, |
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'capabilities' => $capabilities, |
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'hierarchical' => true, |
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'show_admin_column' => false, |
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'show_ui' => false, |
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'rewrite' => array( |
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'slug' => self::TAXONOMY_SLUG |
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) |
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); |
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// Register taxonomy |
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register_taxonomy( |
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self::TAXONOMY_NAME, self::TAXONOMY_OBJECT_TYPE, $args |
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); |
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} |
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/** |
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* Get or create a taxonomy term from a given entity topic. |
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* |
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* @since 3.6.0 |
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* |
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*/ |
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public function get_or_create_term_from_topic_entity( $topic ) { |
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// Define taxonomy term slug |
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$term_slug = sanitize_title( $topic->post_title ); |
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// Look for an existing taxonomy term with a given slug |
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if ( $term = get_term_by( 'slug', $term_slug, self::TAXONOMY_NAME ) ) { |
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return (int) $term->term_id; |
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} |
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// Otherwise create a new term and return it |
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$result = wp_insert_term( |
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$topic->post_title, |
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self::TAXONOMY_NAME, |
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array( |
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'slug' => $term_slug, |
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'description' => $topic->post_content |
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) |
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); |
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return (int) $result[ 'term_id' ]; |
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} |
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/** |
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* Set a topic for a given post. |
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* |
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* @since 3.6.0 |
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* |
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*/ |
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public function set_topic_for( $post_id, $topic_id ) { |
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// Retrieve the topic entity post |
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$topic_entity_post = get_post( $topic_id ); |
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// If current topic does not exist in db false is returned |
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if ( NULL === $topic_entity_post ) { |
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return false; |
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} |
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// Create the proper taxonomy term if needed |
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$term_id = $this->get_or_create_term_from_topic_entity( $topic_entity_post ); |
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// Link the term to the current post |
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wp_set_post_terms( $post_id, $term_id, self::TAXONOMY_NAME, false ); |
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return true; |
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} |
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/** |
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* Unlink any topic for a given post. |
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* |
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* @since 3.6.0 |
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* |
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*/ |
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public function unlink_topic_for( $post_id ) { |
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wp_delete_object_term_relationships( $post_id, self::TAXONOMY_NAME ); |
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} |
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} |
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insideout10 /
wordlift-plugin
