Woocommerce check if filtering products

问题:

Is there a conditional function or another solution to check if the products are currently filtered?

Something like this would be great:

if( is_filtered() ) echo 'Filters active';

Amazing would be if the function returns the number of active filters (or a array) or false.

回答1:

Thanks to David Chandra Purnama who pushed me in the right direction here's a very simple function to use:

function active_woocommerce_filters() {

    // for older WC versions
    // global $_chosen_attributes;

    $_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes();

    return count( $_chosen_attributes );

}

The function returns the number of active filters so it can be used like this:

if( active_woocommerce_filters() ) {

    echo str_replace( '%s', active_woocommerce_filters(), 'There are %s filters active' );

} else {

    echo 'There are no filters active';

}

EDIT:

As Artur Czyżewski pointed out the $_chosen_attributes global variable is not available in his installation. This is most likely due to changes to WooCommerce and probably affect all newer versions, so i've updated the active_woocommerce_filters function above.

回答2:

You can check using global $_chosen_attributes; WooCommerce "Layered Nav Filters" only displayed if filters is active. you can check the code "includes/widgets/class-wc-widget-layered-nav-filters.php":

global $_chosen_attributes;

if ( ! is_post_type_archive( 'product' ) && ! is_tax( get_object_taxonomies( 'product' ) ) ) {
    return;
}

// Price
$min_price = isset( $_GET['min_price'] ) ? esc_attr( $_GET['min_price'] ) : 0;
$max_price = isset( $_GET['max_price'] ) ? esc_attr( $_GET['max_price'] ) : 0;

if ( 0 < count( $_chosen_attributes ) || 0 < $min_price || 0 < $max_price ) {
    /* Your Code Here. */
}