254 lines
8.7 KiB
PHP
254 lines
8.7 KiB
PHP
<?php
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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 1.6.4
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* @extends WP_Widget
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*/
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class WooCommerce_Widget_Price_Filter extends WP_Widget {
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var $woo_widget_cssclass;
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var $woo_widget_description;
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var $woo_widget_idbase;
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var $woo_widget_name;
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/**
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* constructor
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*
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* @access public
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* @return void
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*/
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function WooCommerce_Widget_Price_Filter() {
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/* Widget variable settings. */
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$this->woo_widget_cssclass = 'widget_price_filter';
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$this->woo_widget_description = __( 'Shows a price filter slider in a widget which lets you narrow down the list of shown products when viewing product categories.', 'woocommerce' );
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$this->woo_widget_idbase = 'woocommerce_price_filter';
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$this->woo_widget_name = __('WooCommerce Price Filter', 'woocommerce' );
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/* Widget settings. */
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$widget_ops = array( 'classname' => $this->woo_widget_cssclass, 'description' => $this->woo_widget_description );
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/* Create the widget. */
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$this->WP_Widget('price_filter', $this->woo_widget_name, $widget_ops);
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}
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/**
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* widget function.
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*
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* @see WP_Widget
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* @access public
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* @param array $args
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* @param array $instance
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* @return void
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*/
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function widget( $args, $instance ) {
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extract($args);
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global $_chosen_attributes, $wpdb, $woocommerce, $wp_query, $wp;
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if (!is_tax( 'product_cat' ) && !is_post_type_archive('product') && !is_tax( 'product_tag' )) return; // Not on product page - return
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if ( sizeof( $woocommerce->query->unfiltered_product_ids ) == 0 ) return; // None shown - return
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wp_enqueue_script( 'wc-price-slider' );
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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( $woocommerce->session->min_price ) ? $woocommerce->session->min_price : '',
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'max_price' => isset( $woocommerce->session->max_price ) ? $woocommerce->session->max_price : ''
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) );
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$title = $instance['title'];
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$title = apply_filters('widget_title', $title, $instance, $this->id_base);
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// Remember current filters/search
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$fields = '';
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if (get_search_query()) $fields = '<input type="hidden" name="s" value="'.get_search_query().'" />';
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if (isset($_GET['post_type'])) $fields .= '<input type="hidden" name="post_type" value="'.esc_attr( $_GET['post_type'] ).'" />';
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if (isset($_GET['product_cat'])) $fields .= '<input type="hidden" name="product_cat" value="'.esc_attr( $_GET['product_cat'] ).'" />';
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if (isset($_GET['product_tag'])) $fields .= '<input type="hidden" name="product_tag" value="'.esc_attr( $_GET['product_tag'] ).'" />';
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if ($_chosen_attributes) foreach ($_chosen_attributes as $attribute => $data) :
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$fields .= '<input type="hidden" name="'.esc_attr( str_replace('pa_', 'filter_', $attribute) ).'" value="'.esc_attr( implode(',', $data['terms']) ).'" />';
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if ($data['query_type']=='or') $fields .= '<input type="hidden" name="'.esc_attr( str_replace('pa_', 'query_type_', $attribute) ).'" value="or" />';
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endforeach;
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$min = $max = 0;
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$post_min = $post_max = '';
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if ( sizeof( $woocommerce->query->layered_nav_product_ids ) == 0 ) :
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$max = ceil($wpdb->get_var("SELECT max(meta_value + 0)
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FROM $wpdb->posts
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LEFT JOIN $wpdb->postmeta ON $wpdb->posts.ID = $wpdb->postmeta.post_id
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WHERE meta_key = '_price'"));
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else :
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$max = ceil($wpdb->get_var("SELECT max(meta_value + 0)
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FROM $wpdb->posts
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LEFT JOIN $wpdb->postmeta ON $wpdb->posts.ID = $wpdb->postmeta.post_id
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WHERE meta_key = '_price' AND (
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$wpdb->posts.ID IN (".implode(',', $woocommerce->query->layered_nav_product_ids).")
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OR (
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$wpdb->posts.post_parent IN (".implode(',', $woocommerce->query->layered_nav_product_ids).")
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AND $wpdb->posts.post_parent != 0
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)
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)"));
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endif;
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if ( $min == $max ) return;
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if ( isset( $woocommerce->session->min_price ) ) $post_min = $woocommerce->session->min_price;
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if ( isset( $woocommerce->session->max_price ) ) $post_max = $woocommerce->session->max_price;
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echo $before_widget . $before_title . $title . $after_title;
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if ( get_option( 'permalink_structure' ) == '' )
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$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( $wp->request ) );
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echo '<form method="get" action="' . $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( $post_min ).'" data-min="'.esc_attr( $min ).'" placeholder="'.__('Min price', 'woocommerce').'" />
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<input type="text" id="max_price" name="max_price" value="'.esc_attr( $post_max ).'" data-max="'.esc_attr( $max ).'" placeholder="'.__('Max price', 'woocommerce').'" />
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<button type="submit" class="button">'.__('Filter', 'woocommerce').'</button>
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<div class="price_label" style="display:none;">
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'.__('Price:', 'woocommerce').' <span class="from"></span> — <span class="to"></span>
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</div>
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'.$fields.'
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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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echo $after_widget;
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}
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/**
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* update function.
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*
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* @see WP_Widget->update
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* @access public
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* @param array $new_instance
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* @param array $old_instance
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* @return array
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*/
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function update( $new_instance, $old_instance ) {
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if (!isset($new_instance['title']) || empty($new_instance['title'])) $new_instance['title'] = __('Filter by price', 'woocommerce');
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$instance['title'] = strip_tags(stripslashes($new_instance['title']));
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return $instance;
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}
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/**
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* form function.
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*
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* @see WP_Widget->form
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* @access public
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* @param array $instance
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* @return void
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*/
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function form( $instance ) {
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global $wpdb;
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?>
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<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:', 'woocommerce') ?></label>
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<input type="text" class="widefat" id="<?php echo esc_attr( $this->get_field_id('title') ); ?>" name="<?php echo esc_attr( $this->get_field_name('title') ); ?>" value="<?php if (isset ( $instance['title'])) {echo esc_attr( $instance['title'] );} ?>" /></p>
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<?php
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}
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}
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/**
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* Price filter Init
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*
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* @package WooCommerce/Widgets
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* @access public
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* @return void
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*/
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function woocommerce_price_filter_init() {
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global $woocommerce;
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if ( is_active_widget( false, false, 'price_filter', true ) && ! is_admin() ) {
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$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
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wp_register_script( 'wc-price-slider', $woocommerce->plugin_url() . '/assets/js/frontend/price-slider' . $suffix . '.js', array( 'jquery-ui' ), '1.6', true );
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unset( $woocommerce->session->min_price );
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unset( $woocommerce->session->max_price );
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if ( isset( $_GET['min_price'] ) )
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$woocommerce->session->min_price = esc_attr( $_GET['min_price'] );
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if ( isset( $_GET['max_price'] ) )
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$woocommerce->session->max_price = esc_attr( $_GET['max_price'] );
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add_filter( 'loop_shop_post_in', 'woocommerce_price_filter' );
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}
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}
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add_action( 'init', 'woocommerce_price_filter_init' );
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/**
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* Price Filter post filter
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*
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* @package WooCommerce/Widgets
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* @access public
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* @param array $filtered_posts
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* @return array
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*/
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function woocommerce_price_filter($filtered_posts) {
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global $wpdb;
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if ( isset( $_GET['max_price'] ) && isset( $_GET['min_price'] ) ) {
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$matched_products = array();
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$min = floatval( $_GET['min_price'] );
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$max = floatval( $_GET['max_price'] );
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$matched_products_query = $wpdb->get_results( $wpdb->prepare("
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SELECT DISTINCT ID, post_parent, post_type FROM $wpdb->posts
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INNER JOIN $wpdb->postmeta ON ID = post_id
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WHERE post_type IN ( 'product', 'product_variation' ) AND post_status = 'publish' AND meta_key = %s AND meta_value BETWEEN %d AND %d
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", '_price', $min, $max ), OBJECT_K );
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if ( $matched_products_query ) {
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foreach ( $matched_products_query as $product ) {
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if ( $product->post_type == 'product' )
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$matched_products[] = $product->ID;
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if ( $product->post_parent > 0 && ! in_array( $product->post_parent, $matched_products ) )
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$matched_products[] = $product->post_parent;
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}
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}
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// Filter the id's
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if ( sizeof( $filtered_posts ) == 0) {
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$filtered_posts = $matched_products;
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$filtered_posts[] = 0;
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} else {
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$filtered_posts = array_intersect( $filtered_posts, $matched_products );
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$filtered_posts[] = 0;
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}
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}
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return (array) $filtered_posts;
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}
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