WooCommerce - Custom stock status and variable products [duplicate] - php

Question

This question already has answers here:
How to add custom stock status to products in WooCommerce 4+
(2 answers)
Closed 2 years ago.
On our site, we're using custom stock statuses for our products. We use the below code to achieve that, and it works, but there are some issues on variable products, where it changes back to the default status.
We want to use it on variable products, to display a main stock status for the whole product, but when we select our custom stock status, it will suddenly change it back to the standard stock status after some time. It saves the setting when we update the product, but it will eventually change it back after some time.
Here is our code, which is placed in our functions.php file. Hope you can help or point me in the right direction:
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' => 'custom-stock-status', 'label' => __( 'Stock status', 'woocommerce' ), 'options' => array(
'instock' => __( 'På lager/fjernlager', 'woocommerce' ),
'bestillingsvare' => __( 'Bestillingsvare', 'woocommerce' ), // The new option !!!
'outofstock' => __( 'Ikke på lager', 'woocommerce' ),
), 'desc_tip' => true, 'description' => __( 'Controls whether or not the product is listed as "in stock" or "out of stock" on the frontend.', 'woocommerce' ) ) );
}
add_action('woocommerce_product_options_stock_status', 'add_custom_stock_type');
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);
function woo_add_custom_general_fields_save_two( $post_id ){
// Select
$woocommerce_select = $_POST['_stock_status'];
if( !empty( $woocommerce_select ) )
update_post_meta( $post_id, '_stock_status', esc_attr( $woocommerce_select ) );
else
update_post_meta( $post_id, '_stock_status', '' );
}
function woocommerce_get_custom_availability( $data, $product ) {
switch( $product->stock_status ) {
case 'instock':
$data = array( 'availability' => __( 'På lager/fjernlager', 'woocommerce' ), 'class' => 'in-stock' );
break;
case 'bestillingsvare':
$data = array( 'availability' => __( 'Bestillingsvare', 'woocommerce' ), 'class' => 'bestillings-vare' );
break;
case 'outofstock':
$data = array( 'availability' => __( 'Ikke på lager', 'woocommerce' ), 'class' => 'out-of-stock' );
break;
}
return $data;
}
add_action('woocommerce_get_availability', 'woocommerce_get_custom_availability', 10, 2);

Answer 1

2019 Update:
In February 2019, WooCommerce added a filter to version 3.6.0 that allows users to add their own custom stock statuses.
Inside the function wc_get_product_stock_status_options, which defines the different stock statuses, there are 3 default built-in statuses: instock, outofstock, and onbackorder.
In order to add a custom status or remove a built-in one, you can simply use the new woocommerce_product_stock_status_options filter:
add_filter('woocommerce_product_stock_status_options', 'add_custom_stock_statuses');
function add_custom_stock_statuses($statuses) {
// Add a new status
$statuses['customstatus'] = __( 'My Custom Status', 'plugin-name' );
// Remove a built-in status
unset($statuses['onbackorder']);
return $statuses;
}

Answer 2

Unfortunately WooCommerce not supporting any custom stock status other than its own stock statuses - instock, outofstock & onbackorder. We can achieve the custom stock status by overriding the _stock_status meta in some cases but will not be successful in all cases (like variations update).
In the above functions, you have removed the onbackorder stock status and if particular product stock status changed to 'onbackorder', then it will not be shown. Note that this is the reason for showing 'instock' since its the first option in your select box.
If you are going to use the stock status purely for admin panel display purpose only, then you can achieve this by using the following functions.
/* add custom stock status */
function woocommerce_add_custom_stock_status() {
?>
<script type="text/javascript">
jQuery(function(){
jQuery('._stock_status_field').not('.custom-stock-status').remove();
});
</script>
<?php
/* update custom status if backorder if varations updated */
$real_stock_status = get_post_meta($_REQUEST['post'], '_stock_status', true );
if($real_stock_status=="onbackorder") {
$stock_status = get_post_meta($_REQUEST['post'], '_custom_stock_status', true ); //get status from custom meta
update_post_meta($_REQUEST['post'], '_stock_status', wc_clean( $stock_status ));
}
woocommerce_wp_select( array( 'id' => '_stock_status', 'wrapper_class' => 'custom-stock-status', 'label' => __( 'Stock status', 'woocommerce' ), 'options' => array(
'instock' => __( 'På lager/fjernlager', 'woocommerce' ),
'bestillingsvare' => __( 'Bestillingsvare', 'woocommerce' ), // The new option !!!
'outofstock' => __( 'Ikke på lager', 'woocommerce' ),
), 'desc_tip' => true, 'description' => __( 'Controls whether or not the product is listed as "in stock" or "out of stock" on the frontend.', 'woocommerce' ) ) );
}
add_action('woocommerce_product_options_stock_status', 'woocommerce_add_custom_stock_status');
/* save custom stock status */
function woocommerce_save_custom_stock_status( $product_id ) {
update_post_meta( $product_id, '_stock_status', wc_clean( $_POST['_stock_status'] ) );
update_post_meta( $product_id, '_custom_stock_status', wc_clean( $_POST['_stock_status'] ) ); //save another custom meta since '_stock_status' will be overridden
}
add_action('woocommerce_process_product_meta', 'woocommerce_save_custom_stock_status',99,1);
/* get custom stock status */
function get_custom_stock_status( $data, $product ) {
switch( $product->stock_status ) {
case 'instock':
$data = array( 'availability' => __( 'På lager/fjernlager', 'woocommerce' ), 'class' => 'in-stock' );
break;
case 'bestillingsvare':
$data = array( 'availability' => __( 'Bestillingsvare', 'woocommerce' ), 'class' => 'bestillings-vare' );
break;
case 'outofstock':
$data = array( 'availability' => __( 'Ikke på lager', 'woocommerce' ), 'class' => 'out-of-stock' );
break;
}
return $data;
}
add_action('woocommerce_get_availability', 'get_custom_stock_status', 10, 2);
/* change custom stock status after order completion */
function woocommerce_order_change_custom_stock_status( $order_id ){
if( ! $order_id ) return;
$order = wc_get_order( $order_id );
$items = $order->get_items();
foreach ( $items as $item ) {
$product_id = $item->get_product_id();
$real_stock_status = get_post_meta($product_id, '_stock_status', true );
if($real_stock_status=="onbackorder") {
$stock_status = get_post_meta($product_id, '_custom_stock_status', true ); //get status from custom meta
update_post_meta($product_id, '_stock_status', wc_clean( $stock_status ));
}
}
}
add_action( 'woocommerce_thankyou', 'woocommerce_order_change_custom_stock_status', 10, 1 );
Hope this helps.