How do I rename a file after is has been uploaded and saved? My problem is that I need to parse information about the files automatically in order to come up with the file name the file should be saved as with my application, but I can't access the information required to generate the file name till the record for the model has been saved.
And to add yet another answer, here is the full method I'm using for S3 renaming :
def rename(key, new_name)
file_name = (key.to_s+"_file_name").to_sym
old_name = self.send(file_name)
(self.send(key).styles.keys+[:original]).each do |style|
path = self.send(key).path(style)
self[file_name] = new_name
new_path = self.send(key).path(style)
new_path[0] = ""
self[file_name] = old_name
old_obj = self.send(key).s3_object(style.to_sym)
new_obj = old_obj.move_to(new_path)
end
self.update_attribute(file_name, new_name)
end
To use : Model.find(#).rename(:avatar, "test.jpg")