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Merge pull request #16694 from woocommerce/fix/16591 

Search within current terms to reduce meta query
This commit is contained in:
Claudio Sanches 2017-09-04 12:15:07 -03:00 committed by GitHub
parent 671a4d7b21 056720d3e7
commit aed16d77ae
1 changed files with 20 additions and 2 deletions
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22
includes/class-wc-query.php
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@ -514,9 +514,27 @@ class WC_Query {
* @return array
*/
public function order_by_price_desc_post_clauses( $args ) {
global $wpdb;
$args['join'] .= " INNER JOIN ( SELECT post_id, max( meta_value+0 ) price FROM $wpdb->postmeta WHERE meta_key='_price' GROUP BY post_id ) as price_query ON $wpdb->posts.ID = price_query.post_id ";
global $wpdb, $wp_query;
if ( isset( $wp_query->queried_object, $wp_query->queried_object->term_taxonomy_id, $wp_query->queried_object->taxonomy ) && is_a( $wp_query->queried_object, 'WP_Term' ) ) {
$search_within_terms = get_term_children( $wp_query->queried_object->term_taxonomy_id, $wp_query->queried_object->taxonomy );
$search_within_terms[] = $wp_query->queried_object->term_taxonomy_id;
$args['join'] .= " INNER JOIN (
SELECT post_id, max( meta_value+0 ) price
FROM $wpdb->postmeta
INNER JOIN (
SELECT $wpdb->term_relationships.object_id
FROM $wpdb->term_relationships
WHERE 1=1
AND $wpdb->term_relationships.term_taxonomy_id IN (" . implode( ',', array_map( 'absint', $search_within_terms ) ) . ")
) as products_within_terms ON $wpdb->postmeta.post_id = products_within_terms.object_id
WHERE meta_key='_price' GROUP BY post_id ) as price_query ON $wpdb->posts.ID = price_query.post_id ";
} else {
$args['join'] .= " INNER JOIN ( SELECT post_id, max( meta_value+0 ) price FROM $wpdb->postmeta WHERE meta_key='_price' GROUP BY post_id ) as price_query ON $wpdb->posts.ID = price_query.post_id ";
}
$args['orderby'] = " price_query.price DESC ";
return $args;
}