Rails: Add form button, cancel action?

I've looked for this on google, but didn't find anything. How can I add a cancel action to a form? When I add a submit_tag, it just does an update or new action.

- matt

You can look around here:
http://api.rubyonrails.com/

My 5 minute search looking in the FromHelpers and other various views turned up nothing. You could always write your own helper though, a clear button is not too hard ;)

I normally implement cancel buttons as a javascript button (i know it's sorta evil) in most cases as they are on admin backends. Otherwise, I guess you can make the controller decide what to do based on the value of the submit tag

Here's a cancel button & a submit button

<%= submit_tag 'Cancel' %>
<%= submit_tag 'Update' %>


Your controller can differentiate which button was pressed too:

def edit()

if request.get?
@institution = Institution.find(params[:id])
elsif request.post?
if params[:commit].eql?('Cancel')
redirect_to(:action=>'view', :id=>params[:id])
return nil
else
@institution = Institution.find(params[:id])
if @institution.update_attributes(params[:institution])
flash[:notice] = 'Institution was successfully updated.'
redirect_to(:action=>'view', :id=>@institution)
end
end
end
end

Cancel buttons are step-dependent and application-dependent.

Suppose, for example you have a shopping cart. At the first step (say, log in) cancel should probably send you back to the cart screen (the last page). But say 3 steps in, should it still redirect to the previous screen? No, it should go to the cart screen again.

Thus, no helper tags :) Use something similar to Sevenwulf suggested and you should be good to go.