Wishlist item: hooks for file uploads

[gbhugo]

This hook would be called with the uploaded file, a flag that tells about wether a thumbnail was created and the caption that was given for the upload. The ratio: plugins could hook into this one to get notified when images are uploaded and could feed that data into their databases. Otherwise they can only scan the wp-content directory but the caption is lost if the user isn't using cut-and-paste to transfer it. Would be quite handy for a plugin I am currently working on.

XMLRPC uploads via metaWeblogAPI can call the same hook but just provide an empty string for the caption (as there is no caption provided by the API call).

[skippy]

A hook on file upload would be nice. No such ​hook or filter exists, currently.

[markjaquith]

Someone (Owen?) is working on redoing the upload functionality. It really needs a total workover. The image uploading functionality is poor... and it's something that people really expect to work well.

[skeltoac]

Per a recent discussion with Matt, the wp_posts.post_status value 'object' is for recording (but not storing) uploads as post children. It is used in the new image-uploading.php and there are now object handlers in functions-post.php. A file_upload action hook should be added to any uploading functions. It should only need one parameter: post_ID.

That is, unless you plan on uploading files that aren't attached to posts.

[foolswisdom]

Removing assignment to Skippy.

[mdawaffe]

Fixed some time ago. Relevant hooks:

wp_handle_upload

add_attachment

edit_attachment