Rename invoices.var_prc to vat_rate

#623

app/models/directo.rb

@@ -34,7 +34,7 @@ class Directo < ActiveRecord::Base
               xml.line(
                   "ProductID"      => Setting.directo_receipt_product_name,
                   "Quantity"       => 1,
-                  "UnitPriceWoVAT" => ActionController::Base.helpers.number_with_precision(invoice.sum_cache/(1+invoice.vat_prc), precision: 2, separator: "."),
+                  "UnitPriceWoVAT" => ActionController::Base.helpers.number_with_precision(invoice.sum_cache/(1+invoice.vat_rate), precision: 2, separator: "."),
                   "ProductName"    => invoice.order
               )
             }

app/models/invoice.rb

@@ -28,7 +28,7 @@ class Invoice < ActiveRecord::Base
   validates :billing_email, email_format: { message: :invalid }, allow_blank: true
 
   validates :invoice_type, :due_date, :currency, :seller_name,
-            :seller_iban, :buyer_name, :invoice_items, :vat_prc, presence: true
+            :seller_iban, :buyer_name, :invoice_items, :vat_rate, presence: true
 
   before_create :set_invoice_number, :check_vat
 
@@ -52,7 +52,7 @@ class Invoice < ActiveRecord::Base
 
   def check_vat
     if buyer.country_code != 'EE' && buyer.vat_no.present?
-      self.vat_prc = 0
+      self.vat_rate = 0
     end
   end
 
@@ -157,7 +157,7 @@ class Invoice < ActiveRecord::Base
   end
 
   def vat
-    (sum_without_vat * vat_prc).round(2)
+    (sum_without_vat * vat_rate).round(2)
   end
 
   def sum

app/models/registrar.rb

@@ -81,7 +81,7 @@ class Registrar < ActiveRecord::Base
       payment_term: 'prepayment',
       description: description,
       currency: 'EUR',
-      vat_prc: Setting.registry_vat_prc,
+      vat_rate: Setting.registry_vat_prc,
       seller_name: Setting.registry_juridical_name,
       seller_reg_no: Setting.registry_reg_no,
       seller_iban: Setting.registry_iban,