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Rails 3 does some cool stuff to make Javascript unobtrusive, so they’ve done things like this:
= link_to "Logout", user_session_path, :method => :delete
..converts to
<a href="/logout" data-method="delete" rel="nofollow">Logout</a>
But it just occurred to me.. When I turn off javascript the method isn’t DELETE anymore, it’s GET as expected. So are there plans to, or is there some way to, allow these data- attributes to degrade gracefully, so that link still is a DELETE request?
The change they made in Rails 3 with these
data-attributes wasn’t about graceful degradation, it was about unobtrusive JavaScript.In Rails 2, specifying
:method => :deleteon a link would generate a whole bunch of inline JavaScript that would create a form with a hidden input and then submit the form. That was the same as it is now: turn off JavaScript and it defaults to a GET request. As such, supporting the case of no JavaScript is the same as it was before.One option is to use a form/button instead of a link so you can include the method as a hidden field, much like the Rails 2 JavaScript does. Another option is to have the GET version take you to an intermediate page which in turn has the form/button.
The benefit of the new approach is that it’s unobtrusive. The JavaScript for changing the HTTP verb exists in an external file and uses the
data-attributes to determine which elements it should be attached to.