How to display a Rails flash notice upon redirect?

Question

I have the following code in a Rails controller:

flash.now[:notice] = 'Successfully checked in'
redirect_to check_in_path

Then in the /check_in view:

<p id="notice"><%= notice %></p>

However, the notice does not show up. Works perfect if I don't redirect in the controller:

flash.now[:notice] = 'Successfully checked in'
render action: 'check_in'

I need a redirect though... not just a rendering of that action. Can I have a flash notice after redirecting?

score 129 · Accepted Answer · edited Oct 22 '20 at 18:24

129

Remove the .now. So just write:

flash[:notice] = 'Successfully checked in'
redirect_to check_in_path

The .now is specifically supposed to be used when you are just rendering and not redirecting. When redirecting, the .now is not to be used.

edited Oct 22 '20 at 18:24

Camelid

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answered Mar 20 '13 at 20:39

Rebitzele

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Perfect! thanks. It's making me wait 6 more minutes to accept the answer for some reason... – at. Mar 20 '13 at 20:42

score 45 · Answer 2 · edited Jul 23 '14 at 03:41

45

redirect_to new_user_session_path, alert: "Invalid email or password"

in place of :alert you can use :notice

to display

edited Jul 23 '14 at 03:41

Jay

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answered Mar 21 '13 at 10:52

Tauqeer Ahmad

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score 22 · Answer 3 · answered Dec 12 '14 at 16:10

22

Or you can do it in one line.

redirect_to check_in_path, flash: {notice: "Successfully checked in"}

answered Dec 12 '14 at 16:10

etlds

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@JayEl-Kaake what ruby version are you using? – etlds Mar 03 '16 at 14:26
It was a while ago, so I'm not sure... I'll redact my comment since it looks like that should work. – Jay El-Kaake Mar 07 '16 at 19:37
2

path, flash: {notice: ... seems like Rails 3, while path, alert: ... is Rails 4+ – Simon B. Dec 12 '16 at 15:57
1

Nice solution, as it also allows different types of messages, e.g. flash: {success: "text"} – fydelio Feb 02 '19 at 09:57

score 13 · Answer 4 · edited Sep 17 '16 at 00:11

13

This will work too

redirect_to check_in_path, notice: 'Successfully checked in'

edited Sep 17 '16 at 00:11

Jeff

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answered May 25 '16 at 13:49

Seifer

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score 11 · Answer 5 · answered Oct 05 '17 at 20:41

If you are using Bootstrap, this will display a nicely-formatted flash message on the page that's the target of your redirect.

In your controller:

if my_success_condition
  flash[:success] = 'It worked!'
else
  flash[:warning] = 'Something went wrong.'
end
redirect_to myroute_path

In your view:

<% flash.each do |key, value| %>
  <div class="alert alert-<%= key %>"><%= value %></div>
<% end %>

This will produce HTML like:

<div class="alert alert-success">It worked!</div>

For available Bootstrap alert styles, see: http://getbootstrap.com/docs/4.0/components/alerts/

Reference: https://agilewarrior.wordpress.com/2014/04/26/how-to-add-a-flash-message-to-your-rails-page/

score 3 · Answer 6 · answered Feb 08 '15 at 18:44

3

I had the same problem, and your question solved mine, because I had forgotten to include in the /check_in view:

<p id="notice"><%= notice %></p>

In the controller, just a single line:

redirect_to check_in_path, :notice => "Successfully checked in"

answered Feb 08 '15 at 18:44

Florencio Lugo

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2

yours is a different problem. I had the `<%= notice %>` tag, just nothing was coming up – at. Feb 09 '15 at 05:33

How to display a Rails flash notice upon redirect?

6 Answers6