attribute_taxonomies;
if ( $attribute_taxonomies ) :
foreach ($attribute_taxonomies as $tax) :
$attribute = strtolower(sanitize_title($tax->attribute_name));
$taxonomy = $woocommerce->attribute_name($attribute);
$name = 'filter_' . $attribute;
if (isset($_GET[$name]) && taxonomy_exists($taxonomy)) $_chosen_attributes[$taxonomy] = explode(',', $_GET[$name] );
endforeach;
endif;
}
/**
* Layered Nav post filter
*/
add_filter('loop-shop-posts-in', 'woocommerce_layered_nav_query');
function woocommerce_layered_nav_query( $filtered_posts ) {
global $_chosen_attributes, $wpdb, $woocommerce;
if (sizeof($_chosen_attributes)>0) :
$matched_products = array();
$filtered = false;
foreach ($_chosen_attributes as $attribute => $values) :
if (sizeof($values)>0) :
foreach ($values as $value) :
$posts = get_objects_in_term( $value, $attribute );
if (!is_wp_error($posts) && (sizeof($matched_products)>0 || $filtered)) :
$matched_products = array_intersect($posts, $matched_products);
elseif (!is_wp_error($posts)) :
$matched_products = $posts;
endif;
$filtered = true;
endforeach;
endif;
endforeach;
if ($filtered) :
$woocommerce->query['layered_nav_post__in'] = $matched_products;
$woocommerce->query['layered_nav_post__in'][] = 0;
if (sizeof($filtered_posts)==0) :
$filtered_posts = $matched_products;
$filtered_posts[] = 0;
else :
$filtered_posts = array_intersect($filtered_posts, $matched_products);
$filtered_posts[] = 0;
endif;
endif;
endif;
return (array) $filtered_posts;
}
/**
* Layered Nav Widget
*/
class WooCommerce_Widget_Layered_Nav extends WP_Widget {
/** Variables to setup the widget. */
var $woo_widget_cssclass;
var $woo_widget_description;
var $woo_widget_idbase;
var $woo_widget_name;
/** constructor */
function WooCommerce_Widget_Layered_Nav() {
/* Widget variable settings. */
$this->woo_widget_cssclass = 'widget_layered_nav';
$this->woo_widget_description = __( 'Shows a custom attribute in a widget which lets you narrow down the list of products when viewing product categories.', 'woothemes' );
$this->woo_widget_idbase = 'woocommerce_layered_nav';
$this->woo_widget_name = __('WooCommerce Layered Nav', 'woothemes' );
/* Widget settings. */
$widget_ops = array( 'classname' => $this->woo_widget_cssclass, 'description' => $this->woo_widget_description );
/* Create the widget. */
$this->WP_Widget('layered_nav', $this->woo_widget_name, $widget_ops);
}
/** @see WP_Widget */
function widget( $args, $instance ) {
extract($args);
if (!is_tax( 'product_cat' ) && !is_post_type_archive('product') && !is_tax( 'product_tag' )) return;
global $_chosen_attributes, $wpdb, $woocommerce;
$title = $instance['title'];
$taxonomy = $woocommerce->attribute_name($instance['attribute']);
if (!taxonomy_exists($taxonomy)) return;
$title = apply_filters('widget_title', $title, $instance, $this->id_base);
$args = array(
'hide_empty' => '1'
);
$terms = get_terms( $taxonomy, $args );
$count = count($terms);
if($count > 0){
$found = false;
ob_start();
echo $before_widget . $before_title . $title . $after_title;
echo "";
// Force found when option is selected
if (array_key_exists($taxonomy, $_chosen_attributes)) $found = true;
foreach ($terms as $term) {
$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
$count = sizeof(array_intersect($_products_in_term, $woocommerce->query['filtered_product_ids']));
if ($count>0) $found = true;
$option_is_set = (isset($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy]));
if ($count==0 && !$option_is_set) continue;
$class = '';
$arg = 'filter_'.strtolower(sanitize_title($instance['attribute']));
if (isset($_GET[ $arg ])) $current_filter = explode(',', $_GET[ $arg ]); else $current_filter = array();
if (!is_array($current_filter)) $current_filter = array();
if (!in_array($term->term_id, $current_filter)) $current_filter[] = $term->term_id;
// Base Link decided by current page
if (defined('SHOP_IS_ON_FRONT')) :
$link = '';
elseif (is_post_type_archive('product') || is_page( get_option('woocommerce_shop_page_id') )) :
$link = get_post_type_archive_link('product');
else :
$link = get_term_link( get_query_var('term'), get_query_var('taxonomy') );
endif;
// All current filters
if ($_chosen_attributes) foreach ($_chosen_attributes as $name => $value) :
if ($name!==$taxonomy) :
$link = add_query_arg( strtolower(sanitize_title(str_replace('pa_', 'filter_', $name))), implode(',', $value), $link );
endif;
endforeach;
// Min/Max
if (isset($_GET['min_price'])) :
$link = add_query_arg( 'min_price', $_GET['min_price'], $link );
endif;
if (isset($_GET['max_price'])) :
$link = add_query_arg( 'max_price', $_GET['max_price'], $link );
endif;
// Current Filter = this widget
if (isset( $_chosen_attributes[$taxonomy] ) && is_array($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy])) :
$class = 'class="chosen"';
else :
$link = add_query_arg( $arg, implode(',', $current_filter), $link );
endif;
// Search Arg
if (get_search_query()) :
$link = add_query_arg( 's', get_search_query(), $link );
endif;
// Post Type Arg
if (isset($_GET['post_type'])) :
$link = add_query_arg( 'post_type', $_GET['post_type'], $link );
endif;
echo '- ';
if ($count>0 || $option_is_set) echo ''; else echo '';
echo $term->name;
if ($count>0 || $option_is_set) echo ''; else echo '';
echo ' '.$count.'
';
}
echo "
";
echo $after_widget;
if (!$found) :
ob_clean();
return;
else :
$widget = ob_get_clean();
echo $widget;
endif;
}
}
/** @see WP_Widget->update */
function update( $new_instance, $old_instance ) {
global $woocommerce;
if (!isset($new_instance['title']) || empty($new_instance['title'])) $new_instance['title'] = $woocommerce->attribute_label($new_instance['attribute']);
$instance['title'] = strip_tags(stripslashes($new_instance['title']));
$instance['attribute'] = stripslashes($new_instance['attribute']);
return $instance;
}
/** @see WP_Widget->form */
function form( $instance ) {
global $wpdb, $woocommerce;
?>