add fullname reversed search

app/assets/javascripts/admin/line_items/controllers/line_items_controller.js.coffee

@@ -25,6 +25,7 @@ angular.module("admin.lineItems").controller 'LineItemsCtrl', ($scope, $timeout,
     "order_bill_address_lastname",
     "order_bill_address_full_name",
     "order_bill_address_full_name_with_comma",
+    "order_bill_address_full_name_reversed",
     "variant_product_supplier_name",
     "order_email",
     "order_number",

app/models/spree/address.rb

@@ -6,7 +6,8 @@ module Spree
 
     self.belongs_to_required_by_default = false
 
-    searchable_attributes :firstname, :lastname, :phone, :full_name, :full_name_with_comma
+    searchable_attributes :firstname, :lastname, :phone, :full_name, :full_name_with_comma,
+      :full_name_reversed
     searchable_associations :country, :state
 
     belongs_to :country, class_name: "Spree::Country"
@@ -42,6 +43,12 @@ module Spree
       )
     end
 
+    ransacker :full_name_reversed, formatter: proc { |value| value.to_s } do |parent|
+      Arel::Nodes::SqlLiteral.new(
+        "CONCAT(#{parent.table_name}.lastname, ' ', #{parent.table_name}.firstname)"
+      )
+    end
+
     def self.default
       new(country: DefaultCountry.country)
     end

spec/models/spree/address_spec.rb

@@ -218,4 +218,19 @@ describe Spree::Address do
       expect(result2).not_to include(address1)
     end
   end
+
+  describe "ransacker :full_name_reversed" do
+    it "searches for records with matching reversed full names" do
+      address1 = create(:address, firstname: 'John', lastname: 'Doe')
+      address2 = create(:address, firstname: 'Jane', lastname: 'Smith')
+
+      result1 = described_class.ransack(full_name_reversed_cont: 'Doe John').result
+      expect(result1).to include(address1)
+      expect(result1).not_to include(address2)
+
+      result2 = described_class.ransack(full_name_reversed_cont: 'Smith Jane').result
+      expect(result2).to include(address2)
+      expect(result2).not_to include(address1)
+    end
+  end
 end

spec/system/admin/bulk_order_management_spec.rb

@@ -252,6 +252,18 @@ describe '
 
         expect_line_items_results [li2, li3], [li1]
       end
+
+      it "by customer fullname reversed" do
+        fill_in "quick_filter", with: o1.bill_address.lastname + ' ' + o1.bill_address.firstname
+        page.find('.filter-actions .button.icon-search').click
+
+        expect_line_items_results [li1], [li2, li3]
+
+        fill_in "quick_filter", with: o2.bill_address.lastname + ' ' + o2.bill_address.firstname
+        page.find('.filter-actions .button.icon-search').click
+
+        expect_line_items_results [li2, li3], [li1]
+      end
     end
 
     context "displaying individual columns" do