how to customize devise error messages with classes

Question

im using twitters bootstrap alert messages. in my application.html.erb I have...

            <% flash.each do |key, value| %>
                


        
      

Answer 1

The simplest solution I've found is to use a common partial for all flash messages while checking for :notice and :alert to replace with the necessary bootstrap class.

So make /views/shared/_alerts.html.erb like this -

<% flash.each do |message_type, message| %>
 

  <%= message %>
  
    ×
  
 
<% end %>

Add a helper method (I've added it to the application helper) like this -

def flash_class_name(name)
  case name
  when "notice" then "success"
  when "alert"  then "danger"
  else name
  end
end

Include _alerts.html.erb in the application layout (or the parent layout for your application).

That's it!