widget_cssclass = 'woocommerce widget_rating_filter'; $this->widget_description = __( 'Display a list of star ratings to filter products in your store.', 'woocommerce' ); $this->widget_id = 'woocommerce_rating_filter'; $this->widget_name = __( 'Filter Products by Rating', 'woocommerce' ); $this->settings = array( 'title' => array( 'type' => 'text', 'std' => __( 'Average rating', 'woocommerce' ), 'label' => __( 'Title', 'woocommerce' ), ), ); parent::__construct(); } /** * Count products after other filters have occurred by adjusting the main query. * @param int $rating * @return int */ protected function get_filtered_product_count( $rating ) { global $wpdb; $tax_query = WC_Query::get_main_tax_query(); $meta_query = WC_Query::get_main_meta_query(); // Unset current rating filter. foreach ( $tax_query as $key => $query ) { if ( ! empty( $query['rating_filter'] ) ) { unset( $tax_query[ $key ] ); break; } } // Set new rating filter. $product_visibility_terms = wc_get_product_visibility_term_ids(); $tax_query[] = array( 'taxonomy' => 'product_visibility', 'field' => 'term_taxonomy_id', 'terms' => $product_visibility_terms[ 'rated-' . $rating ], 'operator' => 'IN', 'rating_filter' => true, ); $meta_query = new WP_Meta_Query( $meta_query ); $tax_query = new WP_Tax_Query( $tax_query ); $meta_query_sql = $meta_query->get_sql( 'post', $wpdb->posts, 'ID' ); $tax_query_sql = $tax_query->get_sql( $wpdb->posts, 'ID' ); $sql = "SELECT COUNT( DISTINCT {$wpdb->posts}.ID ) FROM {$wpdb->posts} "; $sql .= $tax_query_sql['join'] . $meta_query_sql['join']; $sql .= " WHERE {$wpdb->posts}.post_type = 'product' AND {$wpdb->posts}.post_status = 'publish' "; $sql .= $tax_query_sql['where'] . $meta_query_sql['where']; if ( $search = WC_Query::get_main_search_query_sql() ) { $sql .= ' AND ' . $search; } return absint( $wpdb->get_var( $sql ) ); } /** * widget function. * * @see WP_Widget * * @param array $args * @param array $instance */ public function widget( $args, $instance ) { if ( ! is_shop() && ! is_product_taxonomy() ) { return; } if ( ! wc()->query->get_main_query()->post_count ) { return; } ob_start(); $found = false; $rating_filter = isset( $_GET['rating_filter'] ) ? array_filter( array_map( 'absint', explode( ',', $_GET['rating_filter'] ) ) ) : array(); $this->widget_start( $args, $instance ); echo '

'; for ( $rating = 5; $rating >= 1; $rating-- ) { $count = $this->get_filtered_product_count( $rating ); if ( empty( $count ) ) { continue; } $found = true; $link = $this->get_current_page_url(); if ( in_array( $rating, $rating_filter ) ) { $link_ratings = implode( ',', array_diff( $rating_filter, array( $rating ) ) ); } else { $link_ratings = implode( ',', array_merge( $rating_filter, array( $rating ) ) ); } $class = in_array( $rating, $rating_filter ) ? 'wc-layered-nav-rating chosen' : 'wc-layered-nav-rating'; $link = apply_filters( 'woocommerce_rating_filter_link', $link_ratings ? add_query_arg( 'rating_filter', $link_ratings ) : remove_query_arg( 'rating_filter' ) ); $rating_html = wc_get_star_rating_html( $rating ); $count_html = esc_html( apply_filters( 'woocommerce_rating_filter_count', "({$count})", $count, $rating ) ); printf( '
• %s %s
', esc_attr( $class ), esc_url( $link ), $rating_html, $count_html ); } echo '

'; $this->widget_end( $args ); if ( ! $found ) { ob_end_clean(); } else { echo ob_get_clean(); } } }