Rails 4 validates_confirmation_of not firing - ruby-on-rails

Question

I know I must be missing something simple. I have a model that contains a validate_confirmation_of. I know it works in my model (I've tested it using the console) but for some reason, it seems the confirmation field on the form isn't linking into my model correctly and so the model thinks the confirmation field is blank and thus skips the validate.
Model
class Person < ActiveRecord::Base
enum status: { suspended: 0, pending_validation: 1, pending_setup: 2, registered: 3, unknown: 99 }
EMAIL_REGEX = /\A[a-z0-9._%+-]+#[a-z0-9.-]+\.[a-z]{2,4}\Z/i
validates :first_name, :presence => true, :length => { :maximum => 255 }
validates :last_name, :presence => true, :length => { :maximum => 255 }
validates :email_address, :presence => true, :length => { :maximum => 255 }, :uniqueness => true, :format => { :with => EMAIL_REGEX }, :confirmation => true
validates :country_code, :presence => true
end
View
<%= form_for #person, url: { action: 'create' } do |f| %>
<fieldset class="registration">
<legend>Your Information</legend>
<div class="group column-1">
<%= label_tag('First Name') %> <span class="required">*</span>
<%= f.text_field :first_name, class: 'form-control', :tabindex => 1 %>
<%= label_tag('Display Name') %>
<%= f.text_field :display_name, class: 'form-control', :tabindex => 3 %>
</div>
<div class="group column-2">
<%= label_tag('Last Name') %><span class="required">*</span>
<%= f.text_field :last_name, class: 'form-control', :tabindex => 2 %>
<%= label_tag('Country') %> <span class="required">*</span>
<%= f.collection_select :country_code, Country.order(:name), :iso_code, :name, { :include_blank => true }, { :class => 'form-control', :tabindex => 4 } %>
</div>
<div class="column-full">
<%= label_tag('Email Address') %> <span class="required">*</span>
<%= f.text_field :email_address, class: 'form-control', :tabindex => 5 %>
<%= label_tag('Confirm Email Address') %> <span class="required">*</span>
<%= f.text_field :email_address_confirmation, class: 'form-control', :tabindex => 6 %>
</div>
<div class="checkbox">
<label>
<%= check_box_tag 'chkTerms' %>
I accept the <%= link_to 'Terms & Conditions', '/pages/terms' %> <span class="required">*</span>
</label>
</div>
<div class="button-options">
<%= f.submit 'Submit', class: 'btn btn-danger' %>
<%= link_to 'Cancel', '/pages/home', class: 'link-button-cancel' %>
</div>
</fieldset>
<% end %>
Controller
def create
#person = Person.new(register_params)
#person.status = 'pending_validation'
if #person.save
render('submit')
else
render('register')
end
end
private
def register_params
params.require(:person).permit(:first_name, :last_name, :email_address, :display_name, :country_code)
end
As you can see, in my view I have a "email_address_confirmation" text_field. I created it the way I created all the other fields and they all work fine so for the life of me I can't figure out what is wrong with the code. But when I submit the page, no matter what I put in the confirmation field, the confirmation validate never fires.
In case it matters, I'm using Rails 4.2.0 and Ruby 2.1.5p273.

Answer 1

You need to add this in your model:
validates :email_address_confirmation, presence: true
According to Rails guides:
This (confirmation) check is performed only if email_confirmation is not nil.
Also make changes in your controller's method register_params, you miss email_address_confirmation field in permit parameters:
def register_params
params.require(:person).permit(:first_name, :last_name, :email_address, :email_address_confirmation, :display_name, :country_code)
end