I want to save a meta data to post parent when the media-form on gallery tab is saved( The submission button is "Save All Changes"). Which action hook can I use?

1 Answer 1


For updates it is 'edit_attachment' and for new attachments 'add_attachment'.

There is no action dedicated to images coming from the gallery tab, but you could check the global array $_FILES. If there is a $_FILES['async-upload'] it is probably a request from the media popup.

  • great! it saved!
    – Jenny
    Jun 8, 2012 at 3:50

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