Introduce helper method

#623

app/helpers/application_helper.rb

@@ -89,4 +89,8 @@ module ApplicationHelper
     types.delete('ddoc')
     ".#{types.join(',.')}"
   end
+
+  def vat_rate(value)
+    number_to_percentage(value, precision: 1)
+  end
 end

app/views/admin/registrars/_billing.html.erb

@@ -8,7 +8,7 @@
             <dd><%= registrar.vat_no %></dd>
 
             <dt><%= Registrar.human_attribute_name :vat_rate %></dt>
-            <dd><%= number_to_percentage registrar.vat_rate, precision: 1 %></dd>
+            <dd><%= vat_rate registrar.vat_rate %></dd>
 
             <dt><%= Registrar.human_attribute_name :accounting_customer_code %></dt>
             <dd><%= registrar.accounting_customer_code %></dd>

app/views/registrar/invoices/partials/_items.haml

@@ -24,7 +24,7 @@
         %td= currency(@invoice.subtotal)
       %tr
         %th.no-border{colspan: 3}
-        %th= t('vat', rate: number_to_percentage(@invoice.vat_rate, precision: 1))
+        %th= t('vat', rate: vat_rate(@invoice.vat_rate))
         %td= currency(@invoice.vat)
       %tr
         %th.no-border{colspan: 3}

app/views/registrar/invoices/pdf.haml

@@ -242,7 +242,7 @@
                   %td= "#{currency(@invoice.subtotal)} #{@invoice.currency}"
                 %tr
                   %th.no-border{colspan: 3}
-                  %th= t('vat', rate: number_to_percentage(@invoice.vat_rate, precision: 1))
+                  %th= t('vat', rate: vat_rate(@invoice.vat_rate))
                   %td= "#{currency(@invoice.vat)} #{@invoice.currency}"
                 %tr
                   %th.no-border{colspan: 3}

test/integration/admin/registrars/show_registrar_test.rb

@@ -22,6 +22,6 @@ class ShowRegistrarTest < ActionDispatch::IntegrationTest
   end
 
   def test_vat_rate
-    assert_text number_to_percentage(@registrar.vat_rate, precision: 1)
+    assert_text vat_rate(@registrar.vat_rate)
   end
 end