Include tax adjustments in serializer and presenter

app/models/invoice/data_presenter.rb

@@ -50,6 +50,8 @@ class Invoice
     def checkout_adjustments(exclude: [], reject_zero_amount: true)
       adjustments = all_eligible_adjustments
 
+      adjustments.reject! { |a| a.originator_type == 'Spree::TaxRate' }
+
       if exclude.include? :line_item
         adjustments.reject! { |a|
           a.adjustable_type == 'Spree::LineItem'
@@ -63,6 +65,10 @@ class Invoice
       adjustments
     end
 
+    def all_tax_adjustments
+      all_eligible_adjustments.select { |a| a.originator_type == 'Spree::TaxRate' }
+    end
+
     def invoice_date
       date
     end

app/models/invoice/data_presenter/adjustment.rb

@@ -4,10 +4,11 @@ class Invoice
   class DataPresenter
     class Adjustment < Invoice::DataPresenter::Base
       attributes :additional_tax_total, :adjustable_type, :amount, :currency, :included_tax_total,
-                 :label
+                 :label, :originator_type
       invoice_generation_attributes :additional_tax_total, :adjustable_type, :amount,
                                     :included_tax_total
       invoice_update_attributes :label
+
       def display_amount
         Spree::Money.new(amount, currency: currency)
       end

app/serializers/invoice/order_serializer.rb

@@ -16,7 +16,7 @@ class Invoice
     has_many :all_eligible_adjustments, serializer: Invoice::AdjustmentSerializer
 
     def all_eligible_adjustments
-      object.all_adjustments.eligible.where.not(originator_type: 'Spree::TaxRate')
+      object.all_adjustments.eligible
     end
 
     def completed_at