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<?php |
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/** |
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* Related Posts via BeaverBuilder/Metaboxi.io |
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* BB Posts Module + Relationship Field |
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*/ |
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class PXB_Related_Posts_BBMB { |
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/** |
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* ID of target posts module (Beaver Builder) |
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*/ |
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private $module_id = 'related-posts'; |
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/** |
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* ID of relationship metabox |
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*/ |
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private $metabox_id = 'posts_to_posts'; |
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/** |
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* Init |
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*/ |
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public function init() { |
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if( ! $this->meets_requirements() ) { |
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return; |
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} |
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// add relationship field |
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add_action( 'mb_relationships_init', [ $this, 'create_mb_related' ] ); |
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// frontend: filter bb posts module |
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if( ! is_admin() ) { |
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add_filter( 'fl_builder_loop_query_args', [ $this, 'filter_bb_posts_args' ] ); |
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} |
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} |
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/** |
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* Check Requirements |
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*/ |
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public function meets_requirements() { |
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if( ! class_exists( 'RW_Meta_Box' ) ) { |
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return false; |
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} |
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if( ! class_exists( 'FLBuilder' ) ) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Create MB Relationship (posts_to_posts) |
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*/ |
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public function create_mb_related() { |
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MB_Relationships_API::register( array( |
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'id' => $this->metabox_id, |
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'from' => 'post', |
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'to' => 'post', |
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) ); |
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} |
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/** |
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* Filter the Beaver Builder posts module |
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* shows related posts via metaboxio post relationship |
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* |
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* @link https://kb.wpbeaverbuilder.com/article/591-create-a-filter-to-customize-the-display-of-post-data |
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*/ |
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public function filter_bb_posts_args( $query_args ) { |
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// only apply this if module has the required id |
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if ( $this->module_id === $query_args['settings']->id ) { |
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// get ids linked by relationship |
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$related_ids = $this->mb_beaver_related_posts(); |
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// change the BB query if ids were found |
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if( $related_ids && is_array( $related_ids ) ) { |
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$query_args['post__in'] = $related_ids; |
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} |
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} |
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return $query_args; |
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} |
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/** |
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* Helper function - get related post ids |
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* @link https://docs.metabox.io/extensions/mb-relationships/ |
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*/ |
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function mb_beaver_related_posts() { |
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if( ! $post_id = get_the_ID() ) { |
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return false; |
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} |
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// @TODO: cache these ids into single post_meta (to avoid extra query when possible). It would need to update all related post_meta on post_save. |
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// Query args - get metabox relationship field ids |
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$args = array( |
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'relationship' => array( |
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'id' => $this->metabox_id, |
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'from' => $post_id, |
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), |
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// make WP_Query more efficient |
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'no_found_rows' => true, |
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'update_post_meta_cache' => false, |
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'update_post_term_cache' => false, |
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'fields' => 'ids' |
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); |
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$connected = new WP_Query( $args ); |
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if( isset( $connected->posts ) && is_array( $connected->posts ) ) { |
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return $connected->posts; |
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} |
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return false; |
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} |
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} // end: PXB_Related_Posts_BBMB |
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// Load class |
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function load_pxb_related_posts_bbmb() { |
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( new PXB_Related_Posts_BBMB() )->init(); |
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} |
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add_action( 'plugins_loaded', 'load_pxb_related_posts_bbmb', 11 ); |
