477 lines
16 KiB
PHP
477 lines
16 KiB
PHP
<?php
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/**
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* Layered Navigation Widget and related functions
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*
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* @package WooCommerce
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* @category Widgets
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* @author WooThemes
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*/
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/**
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* Layered Nav Init
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*/
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add_action( 'init', 'woocommerce_layered_nav_init', 1 );
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function woocommerce_layered_nav_init( ) {
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if ( is_active_widget( false, false, 'woocommerce_layered_nav', true ) && ! is_admin() ) {
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global $_chosen_attributes, $woocommerce, $_attributes_array;
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$_chosen_attributes = array();
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$_attributes_array = array();
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$attribute_taxonomies = $woocommerce->attribute_taxonomies;
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if ( $attribute_taxonomies ) {
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foreach ( $attribute_taxonomies as $tax ) {
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$attribute = strtolower(sanitize_title($tax->attribute_name));
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$taxonomy = $woocommerce->attribute_taxonomy_name($attribute);
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// create an array of product attribute taxonomies
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$_attributes_array[] = $taxonomy;
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$name = 'filter_' . $attribute;
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$query_type_name = 'query_type_' . $attribute;
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if ( ! empty( $_GET[$name] ) && taxonomy_exists( $taxonomy ) ) {
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$_chosen_attributes[$taxonomy]['terms'] = explode( ',', $_GET[ $name ] );
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if ( ! empty( $_GET[$query_type_name] ) && $_GET[ $query_type_name ] == 'or' )
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$_chosen_attributes[$taxonomy]['query_type'] = 'or';
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else
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$_chosen_attributes[$taxonomy]['query_type'] = 'and';
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}
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}
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}
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add_filter('loop_shop_post_in', 'woocommerce_layered_nav_query');
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}
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}
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/**
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* Layered Nav post filter
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*/
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function woocommerce_layered_nav_query( $filtered_posts ) {
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global $_chosen_attributes, $woocommerce, $wp_query;
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if (sizeof($_chosen_attributes)>0) :
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$matched_products = array();
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$filtered_attribute = false;
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foreach ($_chosen_attributes as $attribute => $data) :
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$matched_products_from_attribute = array();
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$filtered = false;
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if (sizeof($data['terms'])>0) :
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foreach ($data['terms'] as $value) :
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$posts = get_posts(
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array(
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'post_type' => 'product',
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'numberposts' => -1,
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'post_status' => 'publish',
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'fields' => 'ids',
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'no_found_rows' => true,
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'tax_query' => array(
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array(
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'taxonomy' => $attribute,
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'terms' => $value,
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'field' => 'id'
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)
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)
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)
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);
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// AND or OR
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if ($data['query_type']=='or') :
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if (!is_wp_error($posts) && (sizeof($matched_products_from_attribute)>0 || $filtered)) :
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$matched_products_from_attribute = array_merge($posts, $matched_products_from_attribute);
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elseif (!is_wp_error($posts)) :
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$matched_products_from_attribute = $posts;
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endif;
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else :
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if (!is_wp_error($posts) && (sizeof($matched_products_from_attribute)>0 || $filtered)) :
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$matched_products_from_attribute = array_intersect($posts, $matched_products_from_attribute);
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elseif (!is_wp_error($posts)) :
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$matched_products_from_attribute = $posts;
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endif;
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endif;
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$filtered = true;
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endforeach;
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endif;
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if (sizeof($matched_products)>0 || $filtered_attribute) :
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$matched_products = array_intersect($matched_products_from_attribute, $matched_products);
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else :
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$matched_products = $matched_products_from_attribute;
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endif;
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$filtered_attribute = true;
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endforeach;
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if ($filtered) :
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$woocommerce->query->layered_nav_post__in = $matched_products;
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$woocommerce->query->layered_nav_post__in[] = 0;
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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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endif;
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endif;
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endif;
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return (array) $filtered_posts;
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}
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/**
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* Layered Nav Widget
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*/
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class WooCommerce_Widget_Layered_Nav extends WP_Widget {
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/** Variables to setup the 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 $woo_widget_name;
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/** constructor */
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function WooCommerce_Widget_Layered_Nav() {
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/* Widget variable settings. */
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$this->woo_widget_cssclass = 'widget_layered_nav';
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$this->woo_widget_description = __( 'Shows a custom attribute in a widget which lets you narrow down the list of products when viewing product categories.', 'woocommerce' );
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$this->woo_widget_idbase = 'woocommerce_layered_nav';
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$this->woo_widget_name = __('WooCommerce Layered Nav', 'woocommerce' );
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/* Widget settings. */
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$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('woocommerce_layered_nav', $this->woo_widget_name, $widget_ops);
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}
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/** @see WP_Widget */
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function widget( $args, $instance ) {
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extract($args);
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global $_chosen_attributes, $woocommerce, $_attributes_array;
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if ( !is_post_type_archive('product') && !is_tax( array_merge( $_attributes_array, array('product_cat', 'product_tag') ) ) ) return;
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$current_term = ($_attributes_array && is_tax($_attributes_array)) ? get_queried_object()->term_id : '';
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$current_tax = ($_attributes_array && is_tax($_attributes_array)) ? get_queried_object()->taxonomy : '';
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$title = apply_filters('widget_title', $instance['title'], $instance, $this->id_base);
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$taxonomy = $woocommerce->attribute_taxonomy_name($instance['attribute']);
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$query_type = (isset($instance['query_type'])) ? $instance['query_type'] : 'and';
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$display_type = (isset($instance['display_type'])) ? $instance['display_type'] : 'list';
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if (!taxonomy_exists($taxonomy)) return;
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$args = array(
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'hide_empty' => '1'
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);
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$terms = get_terms( $taxonomy, $args );
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$count = count($terms);
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if($count > 0){
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$found = false;
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ob_start();
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echo $before_widget . $before_title . $title . $after_title;
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// Force found when option is selected - do not force found on taxonomy attributes
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if ( !$_attributes_array || !is_tax($_attributes_array) )
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if (is_array($_chosen_attributes) && array_key_exists($taxonomy, $_chosen_attributes)) $found = true;
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if ($display_type=='dropdown') {
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// skip when viewing the taxonomy
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if ( $current_tax && $taxonomy == $current_tax ) {
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$found = false;
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} else {
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$taxonomy_filter = str_replace('pa_', '', $taxonomy);
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$found = true;
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echo '<select id="dropdown_layered_nav_'.$taxonomy_filter.'">';
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echo '<option value="">'. sprintf( __('Any %s', 'woocommerce'), $woocommerce->attribute_label( $taxonomy ) ) .'</option>';
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foreach ($terms as $term) {
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// If on a term page, skip that term in widget list
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if( $term->term_id == $current_term ) continue;
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// Get count based on current view - uses transients
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$transient_name = 'wc_ln_count_' . md5( sanitize_key($taxonomy) . sanitize_key( $term->term_id ) );
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if ( false === ( $_products_in_term = get_transient( $transient_name ) ) ) {
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$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
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set_transient( $transient_name, $_products_in_term );
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}
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$option_is_set = (isset($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms']));
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// If this is an AND query, only show options with count > 0
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if ($query_type=='and') {
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$count = sizeof(array_intersect($_products_in_term, $woocommerce->query->filtered_product_ids));
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if ($count>0) $found = true;
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if ($count==0 && !$option_is_set) continue;
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// If this is an OR query, show all options so search can be expanded
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} else {
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$count = sizeof(array_intersect($_products_in_term, $woocommerce->query->unfiltered_product_ids));
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if ($count>0) $found = true;
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}
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echo '<option value="'.$term->term_id.'" '.selected( (isset($_GET['filter_'.$taxonomy_filter])) ? $_GET['filter_'.$taxonomy_filter] : '' , $term->term_id, false).'>'.$term->name.'</option>';
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}
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echo '</select>';
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$woocommerce->add_inline_js("
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jQuery('#dropdown_layered_nav_$taxonomy_filter').change(function(){
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location.href = '".home_url(remove_query_arg('filter_' . $taxonomy_filter, add_query_arg('filtering', '1')))."&filter_$taxonomy_filter=' + jQuery('#dropdown_layered_nav_$taxonomy_filter').val();
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});
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");
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}
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} else {
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// List display
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echo "<ul>";
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foreach ($terms as $term) {
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// Get count based on current view - uses transients
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$transient_name = 'wc_ln_count_' . md5( sanitize_key($taxonomy) . sanitize_key( $term->term_id ) );
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if ( false === ( $_products_in_term = get_transient( $transient_name ) ) ) {
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$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
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set_transient( $transient_name, $_products_in_term );
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}
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$option_is_set = (isset($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms'])) ;
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// If this is an AND query, only show options with count > 0
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if ($query_type=='and') {
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$count = sizeof(array_intersect($_products_in_term, $woocommerce->query->filtered_product_ids));
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// skip the term for the current archive
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if ( $current_term == $term->term_id ) continue;
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if ($count>0 && $current_term !== $term->term_id ) $found = true;
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if ($count==0 && !$option_is_set) continue;
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// If this is an OR query, show all options so search can be expanded
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} else {
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// skip the term for the current archive
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if ( $current_term == $term->term_id ) continue;
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$count = sizeof(array_intersect($_products_in_term, $woocommerce->query->unfiltered_product_ids));
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if ($count>0) $found = true;
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}
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$class = '';
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$arg = 'filter_'.strtolower(sanitize_title($instance['attribute']));
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if (isset($_GET[ $arg ])) $current_filter = explode(',', $_GET[ $arg ]); else $current_filter = array();
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if (!is_array($current_filter)) $current_filter = array();
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if (!in_array($term->term_id, $current_filter)) $current_filter[] = $term->term_id;
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// Base Link decided by current page
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if (defined('SHOP_IS_ON_FRONT')) :
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$link = home_url();
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elseif (is_post_type_archive('product') || is_page( woocommerce_get_page_id('shop') )) :
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$link = get_post_type_archive_link('product');
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else :
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$link = get_term_link( get_query_var('term'), get_query_var('taxonomy') );
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endif;
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// All current filters
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if ($_chosen_attributes) :
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foreach ($_chosen_attributes as $name => $data) :
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if ( $name!==$taxonomy ) :
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//exclude query arg for current term archive term
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while(in_array($current_term, $data['terms'])) {
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$key = array_search($current_term, $data);
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unset($data['terms'][$key]);
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}
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if(!empty($data['terms'])){
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$link = add_query_arg( strtolower(sanitize_title(str_replace('pa_', 'filter_', $name))), implode(',', $data['terms']), $link );
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}
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if ($data['query_type']=='or') $link = add_query_arg( strtolower(sanitize_title(str_replace('pa_', 'query_type_', $name))), 'or', $link );
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endif;
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endforeach;
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endif;
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// Min/Max
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if (isset($_GET['min_price'])) :
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$link = add_query_arg( 'min_price', $_GET['min_price'], $link );
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endif;
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if (isset($_GET['max_price'])) :
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$link = add_query_arg( 'max_price', $_GET['max_price'], $link );
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endif;
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// Current Filter = this widget
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if (isset( $_chosen_attributes[$taxonomy] ) && is_array($_chosen_attributes[$taxonomy]['terms']) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms'])) :
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$class = 'class="chosen"';
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// Remove this term is $current_filter has more than 1 term filtered
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if (sizeof($current_filter)>1) :
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$current_filter_without_this = array_diff($current_filter, array($term->term_id));
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$link = add_query_arg( $arg, implode(',', $current_filter_without_this), $link );
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endif;
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else :
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$link = add_query_arg( $arg, implode(',', $current_filter), $link );
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endif;
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// Search Arg
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if (get_search_query()) :
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$link = add_query_arg( 's', get_search_query(), $link );
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endif;
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// Post Type Arg
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if (isset($_GET['post_type'])) :
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$link = add_query_arg( 'post_type', $_GET['post_type'], $link );
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endif;
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// Query type Arg
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if ($query_type=='or' && !( sizeof($current_filter) == 1 && isset( $_chosen_attributes[$taxonomy]['terms'] ) && is_array($_chosen_attributes[$taxonomy]['terms']) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms']) )) :
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$link = add_query_arg( 'query_type_'.strtolower(sanitize_title($instance['attribute'])), 'or', $link );
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endif;
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echo '<li '.$class.'>';
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if ($count>0 || $option_is_set) echo '<a href="'.$link.'">'; else echo '<span>';
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echo $term->name;
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if ($count>0 || $option_is_set) echo '</a>'; else echo '</span>';
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echo ' <small class="count">'.$count.'</small></li>';
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}
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echo "</ul>";
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} // End display type conditional
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echo $after_widget;
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if (!$found) :
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ob_clean();
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return;
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else :
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$widget = ob_get_clean();
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echo $widget;
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endif;
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}
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}
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/** @see WP_Widget->update */
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function update( $new_instance, $old_instance ) {
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global $woocommerce;
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if (!isset($new_instance['title']) || empty($new_instance['title'])) $new_instance['title'] = $woocommerce->attribute_label($new_instance['attribute']);
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$instance['title'] = strip_tags(stripslashes($new_instance['title']));
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$instance['attribute'] = stripslashes($new_instance['attribute']);
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$instance['query_type'] = stripslashes($new_instance['query_type']);
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$instance['display_type'] = stripslashes($new_instance['display_type']);
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return $instance;
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}
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/** @see WP_Widget->form */
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function form( $instance ) {
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global $woocommerce;
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if (!isset($instance['query_type'])) $instance['query_type'] = 'and';
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if (!isset($instance['display_type'])) $instance['display_type'] = 'list';
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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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<p><label for="<?php echo $this->get_field_id('attribute'); ?>"><?php _e('Attribute:', 'woocommerce') ?></label>
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<select id="<?php echo esc_attr( $this->get_field_id('attribute') ); ?>" name="<?php echo esc_attr( $this->get_field_name('attribute') ); ?>">
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<?php
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$attribute_taxonomies = $woocommerce->get_attribute_taxonomies();
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if ( $attribute_taxonomies ) :
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foreach ($attribute_taxonomies as $tax) :
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if (taxonomy_exists( $woocommerce->attribute_taxonomy_name($tax->attribute_name))) :
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echo '<option value="'.$tax->attribute_name.'" ';
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if (isset($instance['attribute']) && $instance['attribute']==$tax->attribute_name) :
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echo 'selected="selected"';
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endif;
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echo '>'.$tax->attribute_name.'</option>';
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endif;
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endforeach;
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endif;
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?>
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</select></p>
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<p><label for="<?php echo $this->get_field_id('display_type'); ?>"><?php _e('Display Type:', 'woocommerce') ?></label>
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<select id="<?php echo esc_attr( $this->get_field_id('display_type') ); ?>" name="<?php echo esc_attr( $this->get_field_name('display_type') ); ?>">
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<option value="list" <?php selected($instance['display_type'], 'list'); ?>><?php _e('List', 'woocommerce'); ?></option>
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<option value="dropdown" <?php selected($instance['display_type'], 'dropdown'); ?>><?php _e('Dropdown', 'woocommerce'); ?></option>
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</select></p>
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<p><label for="<?php echo $this->get_field_id('query_type'); ?>"><?php _e('Query Type:', 'woocommerce') ?></label>
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<select id="<?php echo esc_attr( $this->get_field_id('query_type') ); ?>" name="<?php echo esc_attr( $this->get_field_name('query_type') ); ?>">
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<option value="and" <?php selected($instance['query_type'], 'and'); ?>><?php _e('AND', 'woocommerce'); ?></option>
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<option value="or" <?php selected($instance['query_type'], 'or'); ?>><?php _e('OR', 'woocommerce'); ?></option>
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</select></p>
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<?php
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}
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} // class WooCommerce_Widget_Layered_Nav
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