__( "Shows a custom attribute in a widget which lets you narrow down the list of shown products in categories.", 'woothemes') );
parent::WP_Widget('layered_nav', __('WooCommerce Layered Nav', 'woothemes'), $widget_ops);
}
/** @see WP_Widget::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, $all_post_ids;
$title = $instance['title'];
$taxonomy = 'product_attribute_'.strtolower(sanitize_title($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 "";
// Reduce count based on chosen attributes
$all_post_ids = woocommerce_layered_nav_query( $all_post_ids );
$all_post_ids = woocommerce_price_filter( $all_post_ids );
foreach ($terms as $term) {
$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
$count = sizeof(array_intersect($_products_in_term, $all_post_ids));
if ($count>0) $found = true;
$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('product_attribute_', '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) echo ''; else echo '';
echo $term->name;
if ($count>0) 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, $old_instance ) {
if (!isset($new_instance['title']) || empty($new_instance['title'])) $new_instance['title'] = ucwords($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;
?>