Overriding enterprises index action to use AMS for json requests, and prevent collection loading for html requests

app/controllers/admin/enterprises_controller.rb

@@ -2,7 +2,7 @@ require 'open_food_network/referer_parser'
 
 module Admin
   class EnterprisesController < ResourceController
-    before_filter :load_enterprise_set, :only => :index
+    # before_filter :load_enterprise_set, :only => :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_groups, :only => [:new, :edit, :update, :create]
@@ -23,6 +23,15 @@ module Admin
     include ActionView::Helpers::TextHelper
     include OrderCyclesHelper
 
+    def index
+      respond_to do |format|
+        format.html
+        format.json do
+          render json: @collection, each_serializer: Api::Admin::BasicEnterpriseSerializer
+        end
+      end
+    end
+
     def set_sells
       enterprise = Enterprise.find_by_permalink(params[:id]) || Enterprise.find(params[:id])
       attributes = { sells: params[:sells] }
@@ -112,6 +121,9 @@ module Admin
         coordinator = Enterprise.find_by_id(params[:coordinator_id]) if params[:coordinator_id]
         order_cycle = OrderCycle.new(coordinator: coordinator) if order_cycle.nil? && coordinator.present?
         return OpenFoodNetwork::OrderCyclePermissions.new(spree_current_user, order_cycle).visible_enterprises
+      when :index
+        return Enterprise.where("1=0") unless json_request?
+        OpenFoodNetwork::Permissions.new(spree_current_user).editable_enterprises
       else
         # TODO was ordered with is_distributor DESC as well, not sure why or how we want to sort this now
         OpenFoodNetwork::Permissions.new(spree_current_user).

spec/controllers/admin/enterprises_controller_spec.rb

@@ -449,5 +449,31 @@ module Admin
         end
       end
     end
+
+    describe "index" do
+      let!(:user) { create_enterprise_user(enterprise_limit: 10) }
+      let!(:enterprise1) { create(:enterprise, sells: 'any', owner: user) }
+      let!(:enterprise2) { create(:enterprise, sells: 'own', owner: user) }
+      let!(:enterprise3) { create(:enterprise, sells: 'any', owner: create_enterprise_user ) }
+
+      before do
+        controller.stub spree_current_user: user
+      end
+
+      context "html" do
+        it "returns an empty @collection" do
+          spree_get :index, format: :html
+          expect(assigns(:collection)).to eq []
+        end
+      end
+
+      context "json" do
+        it "scopes @collection to enterprises editable by the user" do
+          spree_get :index, format: :json
+          expect(assigns(:collection)).to include enterprise1, enterprise2
+          expect(assigns(:collection)).to_not include enterprise3
+        end
+      end
+    end
   end
 end