I would strongly advise against using $post->guid – WordPress now generates them in the form; http:/example.com/?attachment_id=ID Use the same method that many of the attachment-related functions use; $filename = basename ( get_attached_file( $data->ID ) );
This will allow you to rename an attachment as soon as its uploaded: add_action(‘add_attachment’, ‘rename_attachment’); function rename_attachment($post_ID){ $file = get_attached_file($post_ID); $path = pathinfo($file); //dirname = File Path //basename = Filename.Extension //extension = Extension //filename = Filename $newfilename = “NEW FILE NAME HERE”; $newfile = $path[‘dirname’].”https://wordpress.stackexchange.com/”.$newfilename.”.”.$path[‘extension’]; rename($file, $newfile); update_attached_file( $post_ID, $newfile ); }
Edit: 12/09/2017 See this answer for a more up to date solution to this: How to use taxonomies on attachments with the new Media Library? I’m going to answer my own question here as I have managed to figure out a solution to what I’ve been trying to do. I came to the conclusion that … Read more
I was part of the panic show. Happy to say that we can stop the panic, there is a way to view this by choosing “Uploaded to this post” option in dropdown in Media Library: (props to Michael Fields)
I recently did some research for a client project recently so lo-and-behold I get to use it here! After the text you’ll see a categorized list of most (all?) of the image handling functions from within WordPress 3.0.1 (I grouped them in some semblance of order but don’t put too much credence in my categorization.) … Read more