167 lines
6.3 KiB
PHP
167 lines
6.3 KiB
PHP
<?php
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* Price Filter Widget and related functions.
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*
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* Generates a range slider to filter products by price.
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*
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* @author WooThemes
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* @category Widgets
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* @package WooCommerce/Widgets
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* @version 2.3.0
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* @extends WC_Widget
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*/
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class WC_Widget_Price_Filter extends WC_Widget {
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/**
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* Constructor.
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*/
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public function __construct() {
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$this->widget_cssclass = 'woocommerce widget_price_filter';
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$this->widget_description = __( 'Shows a price filter slider in a widget which lets you narrow down the list of shown products when viewing product categories.', 'woocommerce' );
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$this->widget_id = 'woocommerce_price_filter';
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$this->widget_name = __( 'WooCommerce Price Filter', 'woocommerce' );
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$this->settings = array(
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'title' => array(
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'type' => 'text',
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'std' => __( 'Filter by price', 'woocommerce' ),
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'label' => __( 'Title', 'woocommerce' ),
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),
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);
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$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
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wp_register_script( 'wc-jquery-ui-touchpunch', WC()->plugin_url() . '/assets/js/jquery-ui-touch-punch/jquery-ui-touch-punch' . $suffix . '.js', array( 'jquery-ui-slider' ), WC_VERSION, true );
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wp_register_script( 'wc-price-slider', WC()->plugin_url() . '/assets/js/frontend/price-slider' . $suffix . '.js', array( 'jquery-ui-slider', 'wc-jquery-ui-touchpunch' ), WC_VERSION, true );
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wp_localize_script( 'wc-price-slider', 'woocommerce_price_slider_params', array(
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'currency_symbol' => get_woocommerce_currency_symbol(),
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'currency_pos' => get_option( 'woocommerce_currency_pos' ),
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'min_price' => isset( $_GET['min_price'] ) ? esc_attr( $_GET['min_price'] ) : '',
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'max_price' => isset( $_GET['max_price'] ) ? esc_attr( $_GET['max_price'] ) : '',
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) );
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parent::__construct();
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}
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/**
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* Output widget.
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*
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* @see WP_Widget
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*
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* @param array $args
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* @param array $instance
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*/
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public function widget( $args, $instance ) {
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global $wp, $wp_the_query;
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if ( ! is_post_type_archive( 'product' ) && ! is_tax( get_object_taxonomies( 'product' ) ) ) {
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return;
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}
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if ( ! $wp_the_query->post_count ) {
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return;
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}
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$min_price = isset( $_GET['min_price'] ) ? esc_attr( $_GET['min_price'] ) : '';
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$max_price = isset( $_GET['max_price'] ) ? esc_attr( $_GET['max_price'] ) : '';
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wp_enqueue_script( 'wc-price-slider' );
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// Find min and max price in current result set
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$prices = $this->get_filtered_price();
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$min = floor( $prices->min_price );
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$max = ceil( $prices->max_price );
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if ( $min === $max ) {
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return;
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}
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$this->widget_start( $args, $instance );
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if ( '' === get_option( 'permalink_structure' ) ) {
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$form_action = remove_query_arg( array( 'page', 'paged' ), add_query_arg( $wp->query_string, '', home_url( $wp->request ) ) );
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} else {
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$form_action = preg_replace( '%\/page/[0-9]+%', '', home_url( trailingslashit( $wp->request ) ) );
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}
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/**
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* Adjust max if the store taxes are not displayed how they are stored.
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* Min is left alone because the product may not be taxable.
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* Kicks in when prices excluding tax are displayed including tax.
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*/
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if ( wc_tax_enabled() && 'incl' === get_option( 'woocommerce_tax_display_shop' ) && ! wc_prices_include_tax() ) {
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$tax_classes = array_merge( array( '' ), WC_Tax::get_tax_classes() );
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$class_max = $max;
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foreach ( $tax_classes as $tax_class ) {
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if ( $tax_rates = WC_Tax::get_rates( $tax_class ) ) {
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$class_max = $max + WC_Tax::get_tax_total( WC_Tax::calc_exclusive_tax( $max, $tax_rates ) );
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}
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}
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$max = $class_max;
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}
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echo '<form method="get" action="' . esc_url( $form_action ) . '">
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<div class="price_slider_wrapper">
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<div class="price_slider" style="display:none;"></div>
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<div class="price_slider_amount">
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<input type="text" id="min_price" name="min_price" value="' . esc_attr( $min_price ) . '" data-min="' . esc_attr( apply_filters( 'woocommerce_price_filter_widget_min_amount', $min ) ) . '" placeholder="' . esc_attr__( 'Min price', 'woocommerce' ) . '" />
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<input type="text" id="max_price" name="max_price" value="' . esc_attr( $max_price ) . '" data-max="' . esc_attr( apply_filters( 'woocommerce_price_filter_widget_max_amount', $max ) ) . '" placeholder="' . esc_attr__( 'Max price', 'woocommerce' ) . '" />
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<button type="submit" class="button">' . __( 'Filter', 'woocommerce' ) . '</button>
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<div class="price_label" style="display:none;">
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' . __( 'Price:', 'woocommerce' ) . ' <span class="from"></span> — <span class="to"></span>
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</div>
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' . wc_query_string_form_fields( null, array( 'min_price', 'max_price' ), '', true ) . '
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<div class="clear"></div>
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</div>
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</div>
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</form>';
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$this->widget_end( $args );
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}
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/**
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* Get filtered min price for current products.
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* @return int
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*/
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protected function get_filtered_price() {
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global $wpdb, $wp_the_query;
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$args = $wp_the_query->query_vars;
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$tax_query = isset( $args['tax_query'] ) ? $args['tax_query'] : array();
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$meta_query = isset( $args['meta_query'] ) ? $args['meta_query'] : array();
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if ( ! empty( $args['taxonomy'] ) && ! empty( $args['term'] ) ) {
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$tax_query[] = array(
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'taxonomy' => $args['taxonomy'],
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'terms' => array( $args['term'] ),
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'field' => 'slug',
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);
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}
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foreach ( $meta_query as $key => $query ) {
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if ( ! empty( $query['price_filter'] ) || ! empty( $query['rating_filter'] ) ) {
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unset( $meta_query[ $key ] );
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}
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}
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$meta_query = new WP_Meta_Query( $meta_query );
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$tax_query = new WP_Tax_Query( $tax_query );
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$meta_query_sql = $meta_query->get_sql( 'post', $wpdb->posts, 'ID' );
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$tax_query_sql = $tax_query->get_sql( $wpdb->posts, 'ID' );
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$sql = "SELECT min( CAST( price_meta.meta_value AS DECIMAL ) ) as min_price, max( CAST( price_meta.meta_value AS DECIMAL ) ) as max_price FROM {$wpdb->posts} ";
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$sql .= " LEFT JOIN {$wpdb->postmeta} as price_meta ON {$wpdb->posts}.ID = price_meta.post_id " . $tax_query_sql['join'] . $meta_query_sql['join'];
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$sql .= " WHERE {$wpdb->posts}.post_type = 'product'
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AND {$wpdb->posts}.post_status = 'publish'
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AND price_meta.meta_key IN ('" . implode( "','", array_map( 'esc_sql', apply_filters( 'woocommerce_price_filter_meta_keys', array( '_price' ) ) ) ) . "')
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AND price_meta.meta_value > '' ";
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$sql .= $tax_query_sql['where'] . $meta_query_sql['where'];
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return $wpdb->get_row( $sql );
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}
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}
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