How can I re-render current page in Rails without using redirect_to?

Question

I need to be able to do

render 'current page', :notice => 'message'

The notice is lost when using redirect_to , probably because I'm doing this in active-admin. But it works for render

Answer 1

You can use flash in this scenario, which saves key-value pairs across web requests:

flash[:notice] => 'message'

redirect_to some_url

Then inside your view for the URL you've redirected to:

<h1><%= flash[:notice] %></h1>