Bubble notices through redirects

My scenario:

In my controller, after confirm开发者_StackOverflow中文版ing the user, I redirect to root (a landing page: statics#landing) and I attach a notice:

redirect_to root_url, notice: 'Confirmation successful.'

but there, I always check if the user is already signed in, and if so I'm redirecting him to the actual index:

def landing
  redirect_to actual_index_url if (user.signed_in?)
end

How can I propagate the confirmation notice to the last page?

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I think you're looking for flash.keep.

http://railsapi.com/doc/rails-v3.0.8rc1/classes/ActionDispatch/Flash/FlashHash.html#M006014

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Try:

def landing
  redirect_to actual_index_url, :notice => flash[:notice] if (user.signed_in?)
end

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flash.keep(:notice) - if you want to keep only notices just flash.keep will keep both :notices and :errors.