How to redirect to previous page in Ruby On Rails?

user_144529 0
Viewed 171811

I have a page that lists all of the projects that has sortable headers and pagination.

path:
/projects?order=asc&page=3&sort=code

I choose to edit one of the projects

path:
projects/436/edit

When I click save on that page, it calls the projects controller / update method. After I update the code I want to redirect to the path that I was on before I clicked edit a specific project. In other words, I want to be on the same page with the same sorting.

I saw link_to(:back) and thought that :back may work in redirect_to(:back), but that's a no go. 

puts YAML::dump(:back) 
yields the following:
:back

Any ideas on How I could get this to work. It seems like a problem that would be easily solved, but I'm new to RoR.

redirect ruby-on-rails
9 Answers

In your edit action, store the requesting url in the session hash, which is available across multiple requests:

session[:return_to] ||= request.referer

Then redirect to it in your update action, after a successful save:

redirect_to session.delete(:return_to)
user_2520140

Why does redirect_to(:back) not work for you, why is it a no go?

redirect_to(:back) works like a charm for me. It's just a short cut for redirect_to(request.env['HTTP_REFERER'])

http://apidock.com/rails/ActionController/Base/redirect_to (pre Rails 3) or http://apidock.com/rails/ActionController/Redirecting/redirect_to (Rails 3)

Please note that redirect_to(:back) is being deprecated in Rails 5. You can use

redirect_back(fallback_location: 'something') instead (see http://blog.bigbinary.com/2016/02/29/rails-5-improves-redirect_to_back-with-redirect-back.html)

user_4489340

This is how we do it in our application

def store_location
  session[:return_to] = request.fullpath if request.get? and controller_name != "user_sessions" and controller_name != "sessions"
end

def redirect_back_or_default(default)
  redirect_to(session[:return_to] || default)
end

This way you only store last GET request in :return_to session param, so all forms, even when multiple time POSTed would work with :return_to.

user_2192170 
link_to 'get me back', :back

The symbol :back is your swiss army knife.

user_22913570

I wonder if this will work

  def edit
    if request.referer != request.original_url
        @return_here =  request.referer
    end

  end

and use @return_here as a hidden value in the submit form.

of course reloading will kill this so just go back to a default fall back as needed.

user_3252930
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