Add method Passport#image

app/models/passport.rb

@@ -24,6 +24,10 @@ class Passport < ApplicationRecord
     self.patronymic = nil if patronymic.blank?
   end
 
+  def image
+    images.order(created_at: :desc).last
+  end
+
   def enough_confirmations?
     passport_confirmations.count >= REQUIRED_CONFIRMATIONS
   end

app/views/passports/show.html.erb

@@ -137,7 +137,7 @@
       </dl>
     </div>
 
-    <% @passport.images.order(created_at: :desc).limit(1).each do |image| %>
+    <% @passport.image.try do |image| %>
       <div class="col-md-8 col-lg-6">
         <%= image_tag url_for(image), class: 'img-fluid' %>
       </div>

spec/models/passport_spec.rb

@@ -23,6 +23,7 @@ RSpec.describe Passport do
   it { is_expected.to validate_presence_of :unit_code }
   it { is_expected.to validate_presence_of :date_of_issue }
 
+  pending '#image'
   pending '#enough_confirmations?'
 
   describe '#patronymic' do