PHP BYT_Theme_Utils::get_post_descendants方法代码示例

 function list_locations($location_id = 0, $paged = 0, $per_page = -1, $orderby = '', $order = '', $featured_only = false)
 {
     $location_ids = array();
     if ($location_id > 0) {
         $location_ids[] = $location_id;
         $location_descendants = BYT_Theme_Utils::get_post_descendants($location_id, 'location');
         foreach ($location_descendants as $location) {
             $location_ids[] = $location->ID;
         }
     }
     $args = array('post_type' => 'location', 'post_status' => array('publish'), 'posts_per_page' => $per_page, 'paged' => $paged, 'orderby' => $orderby, 'suppress_filters' => false, 'order' => $order, 'meta_query' => array('relation' => 'AND'));
     if (count($location_ids) > 0) {
         $args['meta_query'][] = array('key' => 'location_location_post_id', 'value' => $location_ids, 'compare' => 'IN');
     }
     if (isset($featured_only) && $featured_only) {
         $args['meta_query'][] = array('key' => 'location_is_featured', 'value' => 1, 'compare' => '=', 'type' => 'numeric');
     }
     $posts_query = new WP_Query($args);
     $locations = array();
     if ($posts_query->have_posts()) {
         while ($posts_query->have_posts()) {
             global $post;
             $posts_query->the_post();
             $locations[] = $post;
         }
     }
     $results = array('total' => $posts_query->found_posts, 'results' => $locations);
     wp_reset_postdata();
     return $results;
 }

 function list_car_rentals($paged = 0, $per_page = -1, $orderby = '', $order = '', $location_id = 0, $car_types_array = array(), $car_rental_tags_array = array(), $search_args = array(), $featured_only = false, $author_id = null, $include_private = false, $count_only = false)
 {
     global $byt_theme_globals;
     $location_ids = array();
     if ($location_id > 0) {
         $location_ids[] = $location_id;
         $location_descendants = BYT_Theme_Utils::get_post_descendants($location_id, 'location');
         foreach ($location_descendants as $location) {
             $location_ids[] = $location->ID;
         }
     }
     if (isset($search_args['keyword']) && strlen($search_args['keyword']) > 0) {
         $args = array('s' => $search_args['keyword'], 'post_type' => 'location', 'posts_per_page' => -1, 'post_status' => 'publish', 'suppress_filters' => false);
         $location_posts = get_posts($args);
         foreach ($location_posts as $location) {
             $location_ids[] = $location->ID;
         }
         $descendant_location_ids = array();
         foreach ($location_ids as $temp_location_id) {
             $location_descendants = BYT_Theme_Utils::get_post_descendants($temp_location_id, 'location');
             foreach ($location_descendants as $location) {
                 $descendant_location_ids[] = $location->ID;
             }
         }
         $location_ids = array_merge($descendant_location_ids, $location_ids);
     }
     $args = array('post_type' => 'car_rental', 'post_status' => array('publish'), 'posts_per_page' => $per_page, 'paged' => $paged, 'orderby' => $orderby, 'suppress_filters' => false, 'order' => $order, 'meta_query' => array('relation' => 'AND'));
     if ($orderby == 'price') {
         $args['meta_key'] = 'car_rental_price_per_day';
         $args['orderby'] = 'meta_value_num';
     }
     if (isset($search_args['keyword']) && strlen($search_args['keyword']) > 0) {
         $args['s'] = $search_args['keyword'];
     }
     if ($include_private) {
         $args['post_status'][] = 'private';
     }
     if (isset($featured_only) && $featured_only) {
         $args['meta_query'][] = array('key' => 'car_rental_is_featured', 'value' => 1, 'compare' => '=', 'type' => 'numeric');
     }
     if (isset($author_id)) {
         $author_id = intval($author_id);
         if ($author_id > 0) {
             $args['author'] = $author_id;
         }
     }
     if (count($location_ids) > 0) {
         $args['meta_query'][] = array('key' => 'car_rental_location_post_id', 'value' => $location_ids, 'compare' => 'IN');
         $args['byt_location_ids'] = $location_ids;
     }
     if (!empty($car_types_array)) {
         $args['tax_query'][] = array('taxonomy' => 'car_type', 'field' => 'id', 'terms' => $car_types_array, 'operator' => 'IN');
     }
     if (!empty($car_rental_tags_array)) {
         $args['tax_query'][] = array('taxonomy' => 'car_rental_tag', 'field' => 'id', 'terms' => $car_rental_tags_array, 'operator' => 'IN');
     }
     $search_only_available = false;
     if (isset($search_args['search_only_available'])) {
         $search_only_available = $search_args['search_only_available'];
     }
     if (isset($search_args['prices'])) {
         $args['prices'] = $search_args['prices'];
         $args['price_range_bottom'] = $byt_theme_globals->get_price_range_bottom();
         $args['price_range_increment'] = $byt_theme_globals->get_price_range_increment();
         $args['price_range_count'] = $byt_theme_globals->get_price_range_count();
     }
     if (isset($search_args['date_from'])) {
         $args['byt_date_from'] = $search_args['date_from'];
     }
     if (isset($search_args['date_to'])) {
         $args['byt_date_to'] = $search_args['date_to'];
     }
     $args['search_only_available'] = $search_only_available;
     add_filter('posts_where', array($this, 'car_rentals_search_where'), 10, 2);
     add_filter('posts_fields', array($this, 'car_rentals_search_fields'), 10, 2);
     add_filter('posts_groupby', array($this, 'car_rentals_search_groupby'), 10, 2);
     add_filter('posts_join', array($this, 'car_rentals_search_join'), 10, 2);
     $posts_query = new WP_Query($args);
     // echo $posts_query->request;
     if ($count_only) {
         $results = array('total' => $posts_query->found_posts, 'results' => null);
     } else {
         $results = array();
         if ($posts_query->have_posts()) {
             while ($posts_query->have_posts()) {
                 global $post;
                 $posts_query->the_post();
                 $results[] = $post;
             }
         }
         $results = array('total' => $posts_query->found_posts, 'results' => $results);
     }
     wp_reset_postdata();
     remove_filter('posts_where', array($this, 'car_rentals_search_where'));
     remove_filter('posts_fields', array($this, 'car_rentals_search_fields'));
     remove_filter('posts_groupby', array($this, 'car_rentals_search_groupby'));
     remove_filter('posts_join', array($this, 'car_rentals_search_join'));
     return $results;
 }

 public static function get_post_descendants($parent_id, $post_type)
 {
     $children = array();
     $posts = get_posts(array('numberposts' => -1, 'post_status' => 'publish', 'post_type' => $post_type, 'post_parent' => $parent_id, 'suppress_filters' => false));
     foreach ($posts as $child) {
         $gchildren = BYT_Theme_Utils::get_post_descendants($child->ID, $post_type);
         if (!empty($gchildren)) {
             $children = array_merge($children, $gchildren);
         }
     }
     $children = array_merge($children, $posts);
     return $children;
 }