WooCommerce更新产品库存数量和状态 3

Question

I'm trying to have the product's stock quantity set to zero when there is an specific post_meta

I'm hooking into 'woocommerce_update_product'. When I click "update", this starts, and does update correctly; however, the action never finishes. ( the page is just loading... )

When I refresh the page and check the stock, this is modified correctly.

Am I doing anything wrong?

This is my code

add_action('woocommerce_update_product', 'sv_set_no_stock_when_discontinued', 10, 1);
function sv_set_no_stock_when_discontinued($prodId){

    $discontinued = get_post_meta($prodId, '_is_discontinued', true);

    if($discontinued == 'yes'){

        $product = wc_get_product($prodId);

        // Using WC setters
        $product->set_manage_stock(true);
        $product->set_stock_quantity(0);
        $product->set_stock_status('outofstock');

        // Save Product
        $product->save();
    }
}

After leaving it for a while, i get the following errors:

Fatal error: Allowed memory size of 1077936128 bytes exhausted (tried to allocate 20480 bytes) in \wp-includes\meta.php on line 1078

Fatal error: Allowed memory size of 1077936128 bytes exhausted (tried to allocate 20480 bytes) in \wp-includes\class-wp-fatal-error-handler.php on line 72

Answer 1

The WC_Product Object is already included as 2nd argument for woocommerce_update_product Hook… So you can change a little bit your code like:

But as this hook is located on WC_Product_Data_Store_CPT Class, It doesn't really like the WC_Product setter methods and especially save() method.

So instead we will replace this hook with the following:

add_action( 'woocommerce_admin_process_product_object', 'set_no_stock_if_discontinued' );
function set_no_stock_if_discontinued( $product ) {
    if( $product->get_meta('_is_discontinued') === 'yes' 
    || ( isset($_POST['_is_discontinued']) 
    && esc_attr($_POST['_is_discontinued']) === 'yes' ) ) {

        // Using WC setters
        $product->set_manage_stock(true);
        $product->set_stock_quantity(0);
        $product->set_stock_status('outofstock');
    }
}

Code goes in functions.php file of the active child theme (or active theme). Tested and works.

Note: The save() method is not needed as it's triggered just after this hook.

Global note: You can also set "manage stock" to false.