woo_widget_cssclass = 'woocommerce widget_onsale';
$this->woo_widget_description = __( 'Display a list of your on-sale products on your site.', 'woocommerce' );
$this->woo_widget_idbase = 'woocommerce_onsale';
$this->woo_widget_name = __( 'WooCommerce On-sale', 'woocommerce' );
/* Widget settings. */
$widget_ops = array( 'classname' => $this->woo_widget_cssclass, 'description' => $this->woo_widget_description );
/* Create the widget. */
$this->WP_Widget('onsale', $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 $wp_query, $woocommerce;
$cache = wp_cache_get('widget_onsale', 'widget');
if ( !is_array($cache) ) $cache = array();
if ( isset($cache[$args['widget_id']]) ) {
echo $cache[$args['widget_id']];
return;
}
ob_start();
extract($args);
$title = apply_filters('widget_title', empty($instance['title']) ? __('On Sale', '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;
// Get products on sale
if ( false === ( $product_ids_on_sale = get_transient( 'wc_products_onsale' ) ) ) {
$meta_query = array();
$meta_query[] = array(
'key' => '_sale_price',
'value' => 0,
'compare' => '>',
'type' => 'NUMERIC'
);
$on_sale = get_posts(array(
'post_type' => array('product', 'product_variation'),
'posts_per_page' => -1,
'post_status' => 'publish',
'meta_query' => $meta_query,
'fields' => 'id=>parent'
));
$product_ids = array_keys( $on_sale );
$parent_ids = array_values( $on_sale );
// Check for scheduled sales which have not started
foreach ( $product_ids as $key => $id )
if ( get_post_meta( $id, '_sale_price_dates_from', true ) > current_time('timestamp') )
unset( $product_ids[ $key ] );
$product_ids_on_sale = array_unique( array_merge( $product_ids, $parent_ids ) );
set_transient( 'wc_products_onsale', $product_ids_on_sale );
}
$product_ids_on_sale[] = 0;
$meta_query = array();
$meta_query[] = $woocommerce->query->visibility_meta_query();
$meta_query[] = $woocommerce->query->stock_status_meta_query();
$query_args = array(
'posts_per_page' => $number,
'no_found_rows' => 1,
'post_status' => 'publish',
'post_type' => 'product',
'orderby' => 'date',
'order' => 'ASC',
'meta_query' => $meta_query,
'post__in' => $product_ids_on_sale
);
$r = new WP_Query($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('widget_onsale', $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['widget_onsale']) ) delete_option('widget_onsale');
return $instance;
}
/**
* flush_widget_cache function.
*
* @access public
* @return void
*/
function flush_widget_cache() {
wp_cache_delete('widget_onsale', '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;
?>