Continuing on from my last post , I faced a new issue when it came to adding products and the associated images I was putting in (from Cloudinary ) was getting uploaded to the WordPress media library. Not only that, using the URL from my site instead of the CDN it had come from. Double up on all of my images, what a waste - and I want to host from the CDN to keep costs of bandwidth down. So let me show you how I overcame it. Separating the herd What was interesting, is that it was keeping a record of the original source location, and I found I could filter these apart from the rest of my media library: With this in mind, I wrote a function around it so I could use it to give me a true/false if the given attachment was from this source. Attaching the hook Next, needed a way that as soon as an image was added, that it would update the attachment (post) pointing to the correct reference, and not to the file on our server. I found the add_attachment hook, which fires only whe