woocommerce/includes/widgets/class-wc-widget-rating-filt...

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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Rating Filter Widget and related functions.
*
*
* @author WooThemes
* @category Widgets
* @package WooCommerce/Widgets
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* @version 2.6.0
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* @extends WC_Widget
*/
class WC_Widget_Rating_Filter extends WC_Widget {
/**
* Constructor.
*/
public function __construct() {
$this->widget_cssclass = 'woocommerce widget_rating_filter';
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$this->widget_description = __( 'Filter products by rating when viewing product archives and categories.', 'woocommerce' );
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$this->widget_id = 'woocommerce_rating_filter';
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$this->widget_name = __( 'WooCommerce Average Rating Filter', 'woocommerce' );
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$this->settings = array(
'title' => array(
'type' => 'text',
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'std' => __( 'Average Rating', 'woocommerce' ),
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'label' => __( 'Title', 'woocommerce' )
)
);
parent::__construct();
}
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/**
* Get current page URL for layered nav items.
* @return string
*/
protected function get_page_base_url() {
if ( defined( 'SHOP_IS_ON_FRONT' ) ) {
$link = home_url();
} elseif ( is_post_type_archive( 'product' ) || is_page( wc_get_page_id('shop') ) ) {
$link = get_post_type_archive_link( 'product' );
} else {
$link = get_term_link( get_query_var('term'), get_query_var('taxonomy') );
}
// Min/Max
if ( isset( $_GET['min_price'] ) ) {
$link = add_query_arg( 'min_price', wc_clean( $_GET['min_price'] ), $link );
}
if ( isset( $_GET['max_price'] ) ) {
$link = add_query_arg( 'max_price', wc_clean( $_GET['max_price'] ), $link );
}
// Orderby
if ( isset( $_GET['orderby'] ) ) {
$link = add_query_arg( 'orderby', wc_clean( $_GET['orderby'] ), $link );
}
// Search Arg
if ( get_search_query() ) {
$link = add_query_arg( 's', get_search_query(), $link );
}
// Post Type Arg
if ( isset( $_GET['post_type'] ) ) {
$link = add_query_arg( 'post_type', wc_clean( $_GET['post_type'] ), $link );
}
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// All current filters
if ( $_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes() ) {
foreach ( $_chosen_attributes as $name => $data ) {
$filter_name = sanitize_title( str_replace( 'pa_', '', $name ) );
if ( ! empty( $data['terms'] ) ) {
$link = add_query_arg( 'filter_' . $filter_name, implode( ',', $data['terms'] ), $link );
}
if ( 'or' == $data['query_type'] ) {
$link = add_query_arg( 'query_type_' . $filter_name, 'or', $link );
}
}
}
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return $link;
}
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/**
* Count products after other filters have occured 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 ( $meta_query as $key => $query ) {
if ( ! empty( $query['rating_filter'] ) ) {
unset( $meta_query[ $key ] );
}
}
// Set new rating filter
$meta_query[] = array(
'key' => '_wc_average_rating',
'value' => $rating,
'compare' => '>=',
'type' => 'DECIMAL',
'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' );
$sql = "SELECT COUNT( {$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'];
return absint( $wpdb->get_var( $sql ) );
}
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/**
* widget function.
*
* @see WP_Widget
*
* @param array $args
* @param array $instance
*/
public function widget( $args, $instance ) {
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global $wp_the_query;
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if ( ! is_post_type_archive( 'product' ) && ! is_tax( get_object_taxonomies( 'product' ) ) ) {
return;
}
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if ( ! $wp_the_query->post_count ) {
return;
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}
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ob_start();
$found = false;
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$min_rating = isset( $_GET['min_rating'] ) ? absint( $_GET['min_rating'] ) : '';
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$this->widget_start( $args, $instance );
echo '<ul>';
for ( $rating = 4; $rating >= 1; $rating-- ) {
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$count = $this->get_filtered_product_count( $rating );
if ( ! $count ) {
continue;
}
$found = true;
$link = $this->get_page_base_url();
$link = $min_rating !== $rating ? add_query_arg( 'min_rating', $rating, $link ) : $link;
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echo '<li class="wc-layered-nav-rating ' . ( ! empty( $_GET['min_rating'] ) && $rating === absint( $_GET['min_rating'] ) ? 'chosen' : '' ) . '">';
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echo '<a href="' . esc_url( apply_filters( 'woocommerce_rating_filter_link', $link ) ) . '">';
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echo '<span class="star-rating" title="' . esc_attr( sprintf( __( 'Rated %s and above', 'woocommerce' ), $rating ) ). '">
<span style="width:' . esc_attr( ( $rating / 5 ) * 100 ) . '%">' . sprintf( __( 'Rated %s and above', 'woocommerce'), $rating ) . '</span>
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</span> (' . esc_html( $count ) . ')';
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echo '</a>';
echo '</li>';
}
echo '</ul>';
$this->widget_end( $args );
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if ( ! $found ) {
ob_end_clean();
} else {
echo ob_get_clean();
}
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}
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}