support order field search.

app/controllers/api/v1/orders_controller.rb

@@ -2,9 +2,14 @@
 module Api::V1
   class OrdersController < AppController
     doorkeeper_for :index, :show, scopes: [:read_orders, :write_orders], unless: lambda { @api_client }
+    FIELDS = [:financial_status, :fulfillment_status]
 
     def index
-      @orders = shop.orders.page(page).per(per_page)
+      conditions = {}
+      FIELDS.each do |field|
+        conditions[field] = params[field] unless params[field].blank?
+      end
+      @orders = shop.orders.where(conditions).page(page).per(per_page)
     end
 
     def show

spec/controllers/api/v1/orders_controller_spec.rb

@@ -60,6 +60,32 @@
         json.size.should eql 0
       end
 
+      context 'search' do
+
+        context '#financial_status' do
+
+          it 'should be success' do
+            get :index, financial_status: 'pending', format: :json, access_token: token.token
+            JSON(response.body)['orders'].size.should eql 1
+            get :index, financial_status: 'paid', format: :json, access_token: token.token
+            JSON(response.body)['orders'].size.should eql 0
+          end
+
+        end
+
+        context '#fulfillment_status' do
+
+          it 'should be success' do
+            get :index, fulfillment_status: 'unshipped', format: :json, access_token: token.token
+            JSON(response.body)['orders'].size.should eql 0
+            get :index, fulfillment_status: 'fulfilled', format: :json, access_token: token.token
+            JSON(response.body)['orders'].size.should eql 1
+          end
+
+        end
+
+      end
+
     end
 
     context 'show' do