Скачать или смотреть How to Efficiently Save Previous Product Stock Quantity in WooCommerce

Discover how to store and retrieve the previous stock quantity for products in WooCommerce using simple code snippets.
---
This video is based on the question https://stackoverflow.com/q/66981294/ asked by the user 'Eugen Belousov' ( https://stackoverflow.com/u/13490377/ ) and on the answer https://stackoverflow.com/a/66982656/ provided by the user 'Bhautik' ( https://stackoverflow.com/u/6469645/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to save previous product stock quantity in Woocommerce?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Efficiently Save Previous Product Stock Quantity in WooCommerce

Managing stock quantities is essential for any online store, especially when using platforms like WooCommerce. One common question that arises is how to save the previous stock quantity of a product before updating it. In this post, we’ll walk through the solution that allows you to track previous stock quantities, ensuring that you have accurate data for inventory management.

The Problem: Tracking Previous Stock Quantity

When you update the stock quantity of a product in WooCommerce, it’s important to know not only the current stock amount but also the previous stock levels. This can help with inventory tracking and reporting. You may have come across the woocommerce_product_before_set_stock hook, which allows you to perform tasks before the stock is set. However, this hook saves the current quantity instead of the previous one. Here lies the challenge: how do you access and save the old stock quantity when a product's stock is updated?

The Solution: Utilizing get_post_meta

To effectively retrieve and save the previous stock quantity, we can leverage the get_post_meta function. Here’s a breakdown of how to implement this solution.

Step-by-Step Implementation

Use the Right Hook: Implement the woocommerce_product_before_set_stock hook to perform actions before the stock is updated. This hook provides access to the product object, which contains the stock information you need.

Retrieve Previous Stock Quantity: Use the get_post_meta function to fetch the old stock quantity using the _stock meta key associated with the product.

Update the Old Stock Quantity: Save the retrieved old stock quantity in the post meta field _old_stock_quantity, which allows you to reference it later.

Example Code Snippet

Here’s a simple code snippet that accomplishes this:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

add_action: This function hooks your custom function into WooCommerce's event of setting stock quantities.

get_post_meta: Retrieves the current stock quantity stored in the product's metadata using the _stock key.

update_post_meta: Updates the value of the _old_stock_quantity meta key with the retrieved current stock value.

Conclusion

With just a few lines of code, you can effectively track the previous stock quantity of your WooCommerce products. This implementation not only enhances your inventory control but also provides insights that can help in making strategic business decisions.

By following this guide, you should now be equipped to save and manage stock quantities more effectively in your WooCommerce store. Happy coding!