Add count items support to facets

src/api/endpoints/class-tainacan-rest-facets-controller.php

@@ -66,7 +66,7 @@ class REST_Facets_Controller extends REST_Controller {
 			$_search = null;
 			$collection_id = ( isset($request['collection_id']) ) ? $request['collection_id'] : null;
 			
-			$query_args = $request['current_query'];
+			$query_args = defined('TAINACAN_FACETS_FILTER_ITEMS') && true === TAINACAN_FACETS_FILTER_ITEMS ? $request['current_query'] : [];
 			$query_args = $this->prepare_filters($query_args);
 			
 			if($request['offset'] >= 0 && $request['number'] >= 1){
@@ -106,7 +106,8 @@ class REST_Facets_Controller extends REST_Controller {
 				'offset' => $offset,
 				'number' => $number,
 				'items_filter' => $query_args,
-				'include' => $include
+				'include' => $include,
+				'count_items' => defined('TAINACAN_FACETS_COUNT_ITEMS') && true === TAINACAN_FACETS_COUNT_ITEMS ? true : false
 			];
 			
 			$response = $this->metadatum_repository->fetch_all_metadatum_values( $metadatum_id, $args );

src/classes/repositories/class-tainacan-metadata.php

@@ -896,6 +896,8 @@ class Metadata extends Repository {
 	  *
 	  *     @type array		 $parent_id					Used by taxonomy metadata. The ID of the parent term to retrieve terms from. Default 0 
 	  *
+	  * 	@type bool		 $count_items				Include the count of items that can be found in each value (uses $items_filter as well). Default false
+	  * 
 	  * }
 	  * 
 	  * @return array        Array with the total number of values found. The total number of pages with the current number and the results with id and label for each value. Terms also include parent, taxonomy and number of children.
@@ -909,7 +911,8 @@ class Metadata extends Repository {
 			'number' => '',
 			'include' => [],
 			'items_filter' => [],
-			'parent_id' => 0
+			'parent_id' => 0,
+			'count_items' => false
 		);
 		$args = wp_parse_args($args, $defaults);
 		
@@ -1004,15 +1007,37 @@ class Metadata extends Repository {
 				$count_query = $wpdb->prepare("SELECT COUNT(term_id) FROM $wpdb->term_taxonomy WHERE parent = %d", $r->term_taxonomy_id);
 				$total_children = $wpdb->get_var($count_query);
 				
+				$label = $r->name;
+				$total_items = null;
+				
+				if ( $args['count_items'] ) {
+					$count_items_query = $args['items_filter'];
+					$count_items_query['posts_per_page'] = 1;
+					if ( !isset($count_items_query['tax_query']) ) {
+						$count_items_query['tax_query'] = [];
+					}
+					$count_items_query['tax_query'][] = [
+						'taxonomy' => $taxonomy_slug,
+						'terms' => $r->term_taxonomy_id
+					];
+					$count_items_results = $itemsRepo->fetch($count_items_query, $args['collection_id']);
+					$total_items = $count_items_results->found_posts;
+					
+					//$label .= " ($total_items)";
+					
+				}
+				
 				$values[] = [
 					'value' => $r->term_taxonomy_id,
-					'label' => $r->name,
+					'label' => $label,
 					'total_children' => $total_children,
 					'taxonomy' => $taxonomy_slug,
 					'taxonomy_id' => $taxonomy_id,
 					'parent' => $r->parent,
+					'total_items' => $total_items,
 					'type' => 'Taxonomy'
 				];
+				
 			}
 			
 			
@@ -1045,11 +1070,32 @@ class Metadata extends Repository {
 				$label = ( $metadatum_type === 'Tainacan\Metadata_Types\Relationship' ) ?
 				get_post($r)->post_title : $r;
 				
+				$total_items = null;
+				
+				if ( $args['count_items'] ) {
+					$count_items_query = $args['items_filter'];
+					$count_items_query['posts_per_page'] = 1;
+					if ( !isset($count_items_query['meta_query']) ) {
+						$count_items_query['meta_query'] = [];
+					}
+					$count_items_query['meta_query'][] = [
+						'key' => $metadatum_id,
+						'value' => $r
+					];
+					$count_items_results = $itemsRepo->fetch($count_items_query, $args['collection_id']);
+					$total_items = $count_items_results->found_posts;
+					
+					//$label .= " ($total_items)";
+					
+				}
+				
 				$values[] = [
 					'label' => $label,
 					'value' => $r,
+					'total_items' => $total_items,
 					'type' => 'Text'
 				];
+				
 			}
 		}