Extract filter list fetching into a separate endpoint

app/assets/javascripts/darkswarm/controllers/order_cycle_controller.js.coffee

@@ -32,3 +32,4 @@ Darkswarm.controller "OrderCycleChangeCtrl", ($scope, $timeout, OrderCycle, Prod
     Products.update()
     Cart.reloadFinalisedLineItems()
     ChangeableOrdersAlert.reload()
+    # Reload Filters from new endpoint after changing OC here

app/assets/javascripts/darkswarm/controllers/products_controller.js.coffee

@@ -1,4 +1,4 @@
-Darkswarm.controller "ProductsCtrl", ($scope, $filter, $rootScope, Products, OrderCycle, FilterSelectorsService, Cart, Dereferencer, Taxons, Properties, currentHub, $timeout) ->
+Darkswarm.controller "ProductsCtrl", ($scope, $filter, $rootScope, Products, OrderCycle, OrderCycleResource, FilterSelectorsService, Cart, Dereferencer, Taxons, Properties, currentHub, $timeout) ->
   $scope.Products = Products
   $scope.Cart = Cart
   $scope.query = ""
@@ -12,17 +12,31 @@ Darkswarm.controller "ProductsCtrl", ($scope, $filter, $rootScope, Products, Ord
   $scope.supplied_taxons = ->
     return $scope.memoized_taxons if $scope.memoized_taxons != undefined
     $scope.memoized_taxons = {}
-    currentHub.supplied_taxons.map( (taxon) ->
-      $scope.memoized_taxons[taxon.id] = Taxons.taxons_by_id[taxon.id]
-    )
+
+    params = {
+      id: OrderCycle.order_cycle.order_cycle_id,
+      distributor: currentHub.id
+    }
+    OrderCycleResource.taxons params, (data)=>
+      data.map( (taxon) ->
+        $scope.memoized_taxons[taxon.id] = Taxons.taxons_by_id[taxon.id]
+      )
+
     $scope.memoized_taxons
 
   $scope.supplied_properties = ->
     return $scope.memoized_properties if $scope.memoized_properties != undefined
     $scope.memoized_properties = {}
-    currentHub.supplied_properties.map( (property) ->
-      $scope.memoized_properties[property.id] = Properties.properties_by_id[property.id]
-    )
+
+    params = {
+      id: OrderCycle.order_cycle.order_cycle_id,
+      distributor: currentHub.id
+    }
+    OrderCycleResource.properties params, (data)=>
+      data.map( (property) ->
+        $scope.memoized_properties[property.id] = Properties.properties_by_id[property.id]
+      )
+
     $scope.memoized_properties
 
   $scope.loadMore = ->

app/assets/javascripts/darkswarm/services/order_cycle_resource.js.coffee

@@ -6,4 +6,16 @@ Darkswarm.factory 'OrderCycleResource', ($resource) ->
       url: '/api/order_cycles/:id/products'
       params:
         id: '@id'
+    'taxons':
+      method: 'GET'
+      isArray: true
+      url: '/api/order_cycles/:id/taxons'
+      params:
+        id: '@id'
+    'properties':
+      method: 'GET'
+      isArray: true
+      url: '/api/order_cycles/:id/properties'
+      params:
+        id: '@id'
   })

app/controllers/api/order_cycles_controller.rb

@@ -1,7 +1,10 @@
 module Api
   class OrderCyclesController < BaseController
+    include EnterprisesHelper
     respond_to :json
 
+    skip_authorization_check
+
     def products
       products = OpenFoodNetwork::ProductsRenderer.new(current_distributor, current_order_cycle, params).products_json
       # products = ::ProductsFilterer.new(current_distributor, current_customer, products_json).call # TBD
@@ -10,5 +13,43 @@ module Api
     rescue OpenFoodNetwork::ProductsRenderer::NoProducts
       render status: :not_found, json: ''
     end
+
+    def taxons
+      taxons = Spree::Taxon.
+        joins(:products).
+        where(spree_products: { id: distributed_products(distributor, order_cycle, customer) }).
+        select('DISTINCT spree_taxons.*')
+
+      render json: ActiveModel::ArraySerializer.new(taxons, each_serializer: Api::TaxonSerializer)
+    end
+
+    def properties
+      properties = Spree::Property.
+        joins(:products).
+        where(spree_products: { id: distributed_products(distributor, order_cycle, customer) }).
+        select('DISTINCT spree_properties.*')
+
+      render json: ActiveModel::ArraySerializer.new(
+        properties, each_serializer: Api::PropertySerializer
+      )
+    end
+
+    private
+
+    def distributor
+      Enterprise.find_by_id(params[:distributor])
+    end
+
+    def order_cycle
+      OrderCycle.find_by_id(params[:id])
+    end
+
+    def customer
+      @current_api_user.andand.customer_of(distributor) || nil
+    end
+
+    def distributed_products(distributor, order_cycle, customer)
+      OrderCycleDistributedProducts.new(distributor, order_cycle, customer).products_relation
+    end
   end
 end

config/routes/api.rb

@@ -46,6 +46,8 @@ Openfoodnetwork::Application.routes.draw do
       get :accessible, on: :collection
 
       get :products, on: :member
+      get :taxons, on: :member
+      get :properties, on: :member
     end
 
     resource :status do