Ruby on Rails redirect_to method

Question

Let's say I have this line in my controller

redirect_to "/sessions/try", provider: 5

and this is my try.html.erb

<h1>try</h1>
<%= provider %>

Obviously this doesn't work, but how would I get 'provider' to show up in my html file?

Answer 1

Send provider as params

redirect_to "/sessions/try?provider=5"

Than at, try.html.erb

<h1>try</h1>
<%= params[:provider] %>

Answer 2

If you do not have a named route for /sessions/try , then you'll have to hardcode the params into the string that you pass to redirect_to :

redirect_to "/sessions/try?provider=5"

or

hash = { provider: 5 }
redirect_to "/sessions/try?#{hash.to_param}"

But if you have named route like try_sessions_path , then you can use:

redirect_to try_sessions_path(provider: 5)

In your view, you will then get the keys in params hash:

<%= params[:provider] %>