i18n added

app/models/spree/payment_method/gift_card.rb

@@ -18,7 +18,8 @@ def can_capture?(payment)
 
     def authorize(amount_in_cents, gift_card, gateway_options = {})
       order = Spree::Order.find_by(number: get_order_number(gateway_options))
-      if gift_card.nil? || !gift_card.enabled || order.email != gift_card.email || order.line_items.map(&:product).any? { |p| p.is_gift_card? }
+      return ActiveMerchant::Billing::Response.new(false, Spree.t('gift_card_payment_method.cannot_buy_from_gift_card'), {}, {}) if order_with_gift_card?(order)
+      if gift_card.nil? || !gift_card.enabled || order.email != gift_card.email
         ActiveMerchant::Billing::Response.new(false, Spree.t('gift_card_payment_method.unable_to_find'), {}, {})
       else
         action = -> (gift_card) do
@@ -44,7 +45,8 @@ def void(auth_code, gateway_options = {})
 
     def purchase(amount_in_cents, gift_card, gateway_options = {})
       order = Spree::Order.find_by(number: get_order_number(gateway_options))
-      if gift_card.nil? || !gift_card.enabled || order.email != gift_card.email || order.line_items.map(&:product).any? { |p| p.is_gift_card? }
+      return ActiveMerchant::Billing::Response.new(false, Spree.t('gift_card_payment_method.cannot_buy_from_gift_card'), {}, {}) if order_with_gift_card?(order)
+      if gift_card.nil? || !gift_card.enabled || order.email != gift_card.email
         ActiveMerchant::Billing::Response.new(false, Spree.t('gift_card_payment_method.unable_to_find'), {}, {})
       else
         action = -> (gift_card) do
@@ -69,6 +71,10 @@ def source_required?
 
     private
 
+    def order_with_gift_card?(order)
+      order.line_items.map(&:product).any? { |p| p.is_gift_card? }
+    end
+
     def handle_action_call(gift_card, action, action_name, auth_code = nil)
       gift_card.with_lock do
         if response = action.call(gift_card)

config/locales/en.yml

@@ -24,6 +24,7 @@ en:
       unable_to_find_for_action: "Could not find gift card for auth code: %{auth_code} for action: %{action}"
       unable_to_void: "Unable to void code: %{auth_code}"
       unable_to_credit: "Unable to credit code: %{auth_code}"
+      cannot_buy_from_gift_card: "Cannot buy gift card from gift card."
     gift_card_redeemed: 'Gift card has been redeemed successfully.'
     gift_card_settings: 'Gift Card Settings'
     gift_card_user: 'Gift Card User'