form validation with simple_form and html5 - ruby-on-rails

Question

The easy way from our page is
welcome-controller add an email -> second_controller create an new object with the E-Mailadddress.
we have a welcome-controller that shows our welcome-page. At this page you can type an e-mailaddress which will give to an other controller. We work with simple_form
If we that this config.browser_validations = false and enter an "normal" text we get an error on the create action. In the older version, without simple_form we get an validation-error.
If we enable this we get the html5 validation. but when the browser doesn't support html5?
Our model is here
validates :owner_email,
:presence => true,
:format => { :with => /\A[A-Za-z0-9._%+-]+#[A-Za-z0-9.-]+\.[A-Za-z]+\z/ },
:on => :create
Our welcome-view is here
<p>
<h2>Create a list without registration.</h2>
<%= simple_form_for([#list], :html => {:class => 'well' }) do |f| %>
<%= f.input :owner_email, :label => false, :placeholder => 'Your Email.' %>
<%= f.button :submit, "Create", :class => "btn-primary" %>
<% end %>
</p>
Our create-action from the second controller is this
def create
# create a new list and fill it up
# with some default values
#list = List.new(
:title => "List",
:description => "Beschreibung",
:owner_email => "test#domain.com",
:admin_key => generate_admin_key)
#list.update_attributes(params[:list])
respond_with(#list) do |format|
format.html {#
redirect_to :action => "admin", :id => #list.access_key, :status => 301}
end
end
What have we to change that we get errormessages in the html4 version? can everyone help us please?

Answer 1

Just add a :message parameter. Unless you changed simple_form configuration, message errors should be shown on the right side of the field with errors.
validates :owner_email,
:presence => true,
:format => { :with => /\A[A-Za-z0-9._%+-]+#[A-Za-z0-9.-]+\.[A-Za-z]+\z/ ,
:message => 'Invalid e-mail! Please provide a valid e-mail address'},
:on => :create