woo_widget_cssclass = 'woocommerce widget_recently_viewed_products';
$this->woo_widget_description = __( 'Display a list of recently viewed products.', 'woocommerce' );
$this->woo_widget_idbase = 'woocommerce_recently_viewed_products';
$this->woo_widget_name = __( 'WooCommerce Recently Viewed Products', 'woocommerce' );
/* Widget settings. */
$widget_ops = array( 'classname' => $this->woo_widget_cssclass, 'description' => $this->woo_widget_description );
/* Create the widget. */
$this->WP_Widget('recently_viewed_products', $this->woo_widget_name, $widget_ops);
add_action( 'save_post', array( $this, 'flush_widget_cache' ) );
add_action( 'deleted_post', array( $this, 'flush_widget_cache' ) );
add_action( 'switch_theme', array( $this, 'flush_widget_cache' ) );
}
/**
* widget function.
*
* @see WP_Widget
* @access public
* @param array $args
* @param array $instance
* @return void
*/
function widget($args, $instance) {
global $woocommerce;
$cache = wp_cache_get('recently_viewed_products', 'widget');
if ( !is_array($cache) ) $cache = array();
if ( isset($cache[$args['widget_id']]) ) {
echo $cache[$args['widget_id']];
return;
}
if ( empty( $woocommerce->session->viewed_products ) ) return;
ob_start();
extract($args);
$title = apply_filters('widget_title', empty($instance['title']) ? __('Recently viewed', 'woocommerce' ) : $instance['title'], $instance, $this->id_base);
if ( !$number = (int) $instance['number'] )
$number = 10;
else if ( $number < 1 )
$number = 1;
else if ( $number > 15 )
$number = 15;
$query_args = array('posts_per_page' => $number, 'no_found_rows' => 1, 'post_status' => 'publish', 'post_type' => 'product', 'post__in' => $woocommerce->session->viewed_products, 'orderby' => 'rand');
$query_args['meta_query'] = array();
$query_args['meta_query'][] = $woocommerce->query->stock_status_meta_query();
$r = new WP_Query($query_args);
if ( $r->have_posts() ) {
echo $before_widget;
if ( $title )
echo $before_title . $title . $after_title;
echo '';
echo $after_widget;
}
$content = ob_get_clean();
if ( isset( $args['widget_id'] ) ) $cache[$args['widget_id']] = $content;
echo $content;
wp_cache_set('recently_viewed_products', $cache, 'widget');
}
/**
* update function.
*
* @see WP_Widget->update
* @access public
* @param array $new_instance
* @param array $old_instance
* @return array
*/
function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = strip_tags($new_instance['title']);
$instance['number'] = (int) $new_instance['number'];
$this->flush_widget_cache();
$alloptions = wp_cache_get( 'alloptions', 'options' );
if ( isset($alloptions['recently_viewed_products']) ) delete_option('recently_viewed_products');
return $instance;
}
function flush_widget_cache() {
wp_cache_delete('recently_viewed_products', 'widget');
}
/**
* form function.
*
* @see WP_Widget->form
* @access public
* @param array $instance
* @return void
*/
function form( $instance ) {
$title = isset($instance['title']) ? esc_attr($instance['title']) : '';
if ( !isset($instance['number']) || !$number = (int) $instance['number'] ) $number = 5;
$show_variations = isset( $instance['show_variations'] ) ? (bool) $instance['show_variations'] : false;
?>
session->viewed_products;
if ( empty( $woocommerce->session->viewed_products ) )
$viewed_products = array();
if ( ! in_array( $post->ID, $viewed_products ) )
$viewed_products[] = $post->ID;
if ( sizeof( $viewed_products ) > 15 )
array_shift( $viewed_products );
$woocommerce->session->viewed_products = $viewed_products;
}
add_action( 'woocommerce_before_single_product', 'woocommerce_track_product_view', 10);