Move voucher value to the model

Use Spree::Money to display amount with currency

app/models/voucher.rb

@@ -4,4 +4,12 @@ class Voucher < ApplicationRecord
   belongs_to :enterprise
 
   validates :code, presence: true, uniqueness: { scope: :enterprise_id }
+
+  def value
+    10
+  end
+
+  def display_value
+    Spree::Money.new(value)
+  end
 end

app/views/admin/enterprises/form/_vouchers.html.haml

@@ -19,7 +19,7 @@
       - @enterprise.vouchers.each do |voucher|
         %tr
           %td= voucher.code
-          %td $10 
+          %td= voucher.display_value  
           %td
           %td
           %td

app/views/admin/vouchers/new.html.haml

@@ -19,5 +19,5 @@
           .alpha.four.columns
             = f.label :amount, t('.voucher_amount')
           .omega.eight.columns
-            $
-            = f.text_field :amount, value: 10, disabled: true
+            = Spree::Money.currency_symbol
+            = f.text_field :amount, value: @voucher.value, disabled: true