Adding action to check uniquness of enterprise permalink against existing routes

app/controllers/admin/enterprises_controller.rb

@@ -1,7 +1,7 @@
 module Admin
   class EnterprisesController < ResourceController
     before_filter :load_enterprise_set, :only => :index
-    before_filter :load_countries, :except => :index
+    before_filter :load_countries, :except => [:index, :set_sells, :check_permalink]
     before_filter :load_methods_and_fees, :only => [:new, :edit, :update, :create]
     before_filter :load_taxons, :only => [:new, :edit, :update, :create]
     before_filter :check_can_change_sells, only: :update
@@ -53,6 +53,18 @@ module Admin
       end
     end
 
+    def check_permalink
+      path = Rails.application.routes.recognize_path( "/#{ params[:permalink].to_s }" )
+      if path && path[:controller] == "cms_content"
+        respond_to do |format|
+          format.js { render nothing: true, status: 200 }
+        end
+      else
+        respond_to do |format|
+          format.js { render nothing: true, status: 409 }
+        end
+      end
+    end
 
     protected
 

config/routes.rb

@@ -46,6 +46,7 @@ Openfoodnetwork::Application.routes.draw do
       collection do
         get :for_order_cycle
         post :bulk_update, as: :bulk_update
+        get :check_permalink
       end
 
       member do

spec/controllers/admin/enterprises_controller_spec.rb

@@ -282,5 +282,27 @@ module Admin
         end
       end
     end
+
+    describe "checking permalink suitability" do
+      # let(:enterprise) { create(:enterprise, permalink: 'enterprise_permalink') }
+
+      before do
+        controller.stub spree_current_user: admin_user
+      end
+
+      it "responds with status of 200 when the route does not exist" do
+        spree_get :check_permalink, { permalink: 'some_nonexistent_route', format: :js }
+        expect(response.status).to be 200
+      end
+
+      it "responds with status of 409 when the permalink matches an existing route" do
+        # spree_get :check_permalink, { permalink: 'enterprise_permalink', format: :js }
+        # expect(response.status).to be 409
+        spree_get :check_permalink, { permalink: 'map', format: :js }
+        expect(response.status).to be 409
+        spree_get :check_permalink, { permalink: '', format: :js }
+        expect(response.status).to be 409
+      end
+    end
   end
 end