Sync: Fix bug in WooCommerce_HPOS_Orders::get_objects_by_id method

[fgiannar]

Fixes a bug in WooCommerce_HPOS_Orders's get_objects_by_id method when querying orders via wc_get_orders.
We used to specify the order ids we need using include query argument, however this resulted in the later getting ignored and returning all orders instead.
This is fixed by replacing include with post__in as per the corresponding WP_Query docs that wc_get_orders uses under the hood.

Proposed changes:

• Automattic\Jetpack\Sync\Modules\WooCommerce_HPOS_Orders: Replace include with post__in argument when fetching orders via wc_get_orders used in get_objects_by_id method.

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

p9dueE-8ec-p2

Does this pull request change what data or activity we track or use?

No

Testing instructions:

Pre-requisites:

• A JP connected site with WooCommerce and Jetpack plugins active.

• At least 2 orders

• Enter wp shell

$hpos = new Automattic\Jetpack\Sync\Modules\WooCommerce_HPOS_Orders();
return $hpos->get_object_by_id( 'order', YOUR_ORDER_ID )

• With the PR applied confirm you get a single order. Without the patch all existing orders will be returned

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WordPress.com Simple site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin, and enable the fix/sync-hpos-get_objects_by_id branch.

  • For jetpack-mu-wpcom changes, also add define( 'JETPACK_MU_WPCOM_LOAD_VIA_BETA_PLUGIN', true ); to your wp-config.php file.

• To test on Simple, run the following command on your sandbox:

  bin/jetpack-downloader test jetpack fix/sync-hpos-get_objects_by_id
  

  bin/jetpack-downloader test jetpack-mu-wpcom-plugin fix/sync-hpos-get_objects_by_id
  

Interested in more tips and information?

• In your local development environment, use the jetpack rsync command to sync your changes to a WoA dev blog.
• Read more about our development workflow here: PCYsg-eg0-p2
• Figure out when your changes will be shipped to customers here: PCYsg-eg5-p2

[github-actions]

Thank you for your PR!

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[darssen]

Thanks for working on this.

This tests well after I used get_objects_by_id (note the 's' ) method which is the one being changed instead of get_object_by_id as specified in the instructions.

🚢