Test compatibility with various plugins

[johnbillion]

• WPGraphQL
• MultilingualPress
• WooCommerce
• User Submitted Posts
• Yoast SEO (for OpenGraph etc)

[jenkoian]

WooCommerce

It works for the main product image (which I guess is just a rebranded featured image field) but it doesn't work on the product gallery images, reason being is this https://github.com/woocommerce/woocommerce/blob/master/includes/abstracts/abstract-wc-product.php#L1261 it's calling wp_attachment_is_image() which under the hood calls get_post() which just gets the post for the current site.

This get_post() seems to be a common thing that ends up affecting this plugin, see voceconnect/multi-post-thumbnails#138 and alleyinteractive/wordpress-fieldmanager#738 I was wondering if we could provide something in this library which detected that the post in question is an attachment and if it is and this plugin is in use to do the switch blog thing. Unfortunately, there is not hook within get_post() to allow for this, unless you happen to know a core contributor who might be able to add one 😃

[jenkoian]

Raised this with WooCommerce woocommerce/woocommerce#22566 can't see them going for it but dunno maybe it will raise some discussion.

[marcd123]

I would recommend adding the Pods plugin and also other custom field/post type plugins that use media as an input.

I'm using Pods for example, and because of the get_post() issue mentioned above we can't add images to our posts that are not on the main media site.

Upon trying to save we get the "Invalid Post ID" error which is coming from wp-includes/post.php wp_update_post() function. It's searching for the Post ID in the posts table for the site you're on, not the main site post table.

Can the post table information from the main media site be replicated to other sites somehow? I think this would help by always providing a reference for situations like this where you can't hook into get_post().