Update Product Metadata Save Product Recursive problem

Resolved suiluj
(@suiluj)

5 years, 10 months ago
Hello i am updating the product meta data on the hook woocommerce_update_product.

The reason is i want to calculate some custom fields.

But i have the problem that the update of the meta data triggers the hook itself again. So it does never stop.
```
function change_unit_price($product_id)
{
    //test get data
    $_product = wc_get_product($product_id);
    $_regular_price = $_product->get_regular_price();
    $_sale_price = $_product->get_sale_price();
    $_meta_data = $_product->get_meta_data();
    
    // test set value
    $_product->update_meta_data('_unit_price_regular', "898");
    $_product->save();

}
add_action('woocommerce_update_product', 'change_unit_price', 99, 1);
```
Does someone has a solution for this or is there a workflow i don’t know yet? This is my first try with wordpress plugins.
- This topic was modified 5 years, 10 months ago by suiluj.

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Thread Starter

suiluj

(@suiluj)

5 years, 10 months ago

i found the solution:
Stack Exchange WordPress

before saving you can remove the hook itself.


function calc_unit_prices($product_id)
{
    $_product = wc_get_product($product_id);

    $_product->update_meta_data('_unit_price_regular', 29.2);

    //If calling wp_update_post, unhook this function so it doesn't loop infinitely
    remove_action('woocommerce_update_product', 'calc_unit_prices', 99, 1);

    // call wp_update_post update, which calls save_post again. E.g:
    $_product->save();

    // re-hook this function
    add_action('woocommerce_update_product', 'calc_unit_prices', 99, 1);

}

add_action('woocommerce_update_product', 'calc_unit_prices', 99, 1);

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