for all who are interested, here is a complete solution based on Leila's approach. A warning! My solution is designed to work only with the WoolCommerce inventory management option! I do not work with exact amounts in stock. All code goes into functions.php , as usual.
Inside
Deletes the field of the status drop-down list. Adding a CSS class to highlight my new custom field. A new option "On Demand" has appeared in the drop-down list.
function add_custom_stock_type() { ?> <script type="text/javascript"> jQuery(function(){ jQuery('._stock_status_field').not('.custom-stock-status').remove(); }); </script> <?php woocommerce_wp_select( array( 'id' => '_stock_status', 'wrapper_class' => 'hide_if_variable custom-stock-status', 'label' => __( 'Stock status', 'woocommerce' ), 'options' => array( 'instock' => __( 'In stock', 'woocommerce' ), 'outofstock' => __( 'Out of stock', 'woocommerce' ), 'onrequest' => __( 'On Request', 'woocommerce' ),
Unfortunately, WooCommerce will only store instock or outofstock values using its own functions. Therefore, after processing the product data, I must again maintain the status of my stock.
function save_custom_stock_status( $product_id ) { update_post_meta( $product_id, '_stock_status', wc_clean( $_POST['_stock_status'] ) ); } add_action('woocommerce_process_product_meta', 'save_custom_stock_status',99,1);
Part of the template
get_availability() last thing: I need to change the data returned by get_availability() . When "inventory management" is disabled, WooCommerce again knows the values ββof "instock" and "outofstock". Thus, I have a check on stock status myself.
function woocommerce_get_custom_availability( $data, $product ) { switch( $product->stock_status ) { case 'instock': $data = array( 'availability' => __( 'In stock', 'woocommerce' ), 'class' => 'in-stock' ); break; case 'outofstock': $data = array( 'availability' => __( 'Out of stock', 'woocommerce' ), 'class' => 'out-of-stock' ); break; case 'onrequest': $data = array( 'availability' => __( 'On request', 'woocommerce' ), 'class' => 'on-request' ); break; } return $data; } add_action('woocommerce_get_availability', 'woocommerce_get_custom_availability', 10, 2);
Perhaps this is not a bulletproof solution ... In the end, I will update it.