Render new on form error does not change URL

Question

I have a form in my Rails app with a very straightforward controller and if the form cannot save, I'd like to render :new to show the errors:

def create
    @health_profile = HealthProfile.new(health_profile_params)

    if @health_profile.save
        redirect_to :somewhere_else
    else
        render :new
    end
end

This works great, but the URL goes from /health_profiles/new to /health_profiles following the attempt to create a record. Is there a way to call render :new and have the URL reflect that the user is at /health_profiles/new? If they were to refresh the page while the URL shows /health_profiles, it would load the :index which is not what I want.

score 1 · Accepted Answer · answered Mar 01 '19 at 18:02

Not really. You basically have three options:

You can use JS to change the URL after you re-render the new view.
You can change your render to a redirect_to but you'll lose the errors in @health_profile so you'd have to rely on the flash to show your errors.
You could change all your routes so that you can POST/PUT to the new route and put some conditional logic in your new action to branch based on the request.method

Igor Kasyanchuk · Answer 2 · 2019-03-01T20:55:44.197

1

Because you are submitting a form (to URL which is in "action" attribute of form). This is normal. Don't change the URL.

edited Mar 01 '19 at 20:55

answered Mar 01 '19 at 18:52

Igor Kasyanchuk

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Render new on form error does not change URL

2 Answers2