I think what you're doing is a bit odd. Submits should really come
from a user directly clicking on a GO button. Changing a dropdown
should be more passive -- it's very easy to mis-click in those things,
leaving the user in an odd spot. If you want to get a set of data etc.
when the user changes the dropdown I'd do a GET via Jquery in the
dropdown's selection change event.
Yes, of course. This was only in an Admin interface where I will need to quickly select a dropdown only for each post. It is very tedious to select and then click a button when you might need to do it like a couple of thousand times
I use Active Admin which comes with an old jQuery / rails javascript. I updated it and then I could do this: