Fix the class_varibale problem for Controller::Base by a crude way

lib/shotengai/controllers/customer/cart_controller.rb

-module Shotengai
-  module Controller
-    module Customer
-      class OrdersController < Shotengai::Controller::Base
-        self.resources = Cart
-        self.template_dir = 'shotengai/customer/orders/'
-        
-        remove_actions
-
-        index_query do |resource, params|
-          resource.status_is(params[:status])
-        end
-
-        def add_to_cart
-          buyer_type, buyer_id = add_to_cart_params.values_at(:buyer_type, :buyer_id)
-          buyer = buyer_type.constantize.find(buyer_id)
-          @snapshot = buyer.order_cart.snapshots.create!(add_to_cart_params)
-          head 201
-        end
-
-        def create_by_snapshot
-          
-        end
-
-        def create_directly
-          
-        end
-
-        def pay
-          @resource.pay!
-          respond_with @resource, template: "#{@@template_dir}/show"
-        end
-
-        def cancel
-          @resource.cancel!
-          respond_with @resource, template: "#{@@template_dir}/show"
-        end
-
-        def get_it
-          @resource.get_it
-          respond_with @resource, template: "#{@@template_dir}/show"
-        end
-
-        private
-          def resource_params
-            params.require(resource_key).permit(
-              :address, :customer_remark, snapshot_ids: []
-            )
-          end
-
-          def add_to_cart_params
-            params.require(:snapshot).permit(
-              :series_id, :count, :buyer_type, :buyer_id
-            )
-          end
-      end
-    end
-  end
-end

lib/shotengai/controllers/customer/orders_controller.rb

@@ -11,7 +11,10 @@ module Shotengai
         skip_before_action :set_resource, only: [:cart, :add_to_cart, :create_directly]
 
         remove_actions :destroy
-
+        
+        default_query do |resource, params|  
+        end
+        
         index_query do |resource, params|
           resource.status_is(params[:status])
         end

lib/shotengai/controllers/customer/product_series_controller.rb

@@ -11,8 +11,9 @@ module Shotengai
             params[:product_id] && { shotengai_product_id: params[:product_id] }
           )
         end
-
-        private
+        
+        index_query do |resource, params|
+        end
       end
     end
   end

lib/shotengai/controllers/customer/products_controller.rb

@@ -6,6 +6,9 @@ module Shotengai
         self.template_dir = 'shotengai/customer/products/'
         
         remove_actions :create, :update, :destroy
+        default_query do |resource, params|
+          
+        end
 
         index_query do |resource, params|
           params[:catalog_list] ? 

lib/shotengai/controllers/merchant/orders_controller.rb

@@ -6,7 +6,11 @@ module Shotengai
         self.template_dir = 'shotengai/merchant/orders/'
         
         remove_actions :create, :destroy
-
+        
+        default_query do |resource, params|
+          
+        end
+        
         index_query do |resource, params|
           resource.status_is(params[:status])
         end

lib/shotengai/controllers/merchant/product_series_controller.rb

@@ -11,6 +11,10 @@ module Shotengai
           )
         end
 
+        index_query do |resource, params|
+        
+        end
+
         private
           def resource_params 
             spec = params.require(resource_key).fetch(:spec, nil).try(:permit!)

lib/shotengai/controllers/merchant/products_controller.rb

@@ -5,6 +5,10 @@ module Shotengai
         self.resources = Product
         self.template_dir = 'shotengai/merchant/products/'
         
+        default_query do |resource, params|
+          
+        end
+
         index_query do |resource, params|
           params[:catalog_list] ? 
             resource.tagged_with(params[:catalog_list], on: :catalogs) :