All methods on StandingOrder service are instance methods, StandingOrders service loads instances of StandingOrder

app/assets/javascripts/admin/standing_orders/controllers/standing_order_controller.js.coffee

@@ -1,19 +1,19 @@
 angular.module("admin.standingOrders").controller "StandingOrderController", ($scope, StandingOrder, customers, schedules, paymentMethods, shippingMethods) ->
-  $scope.standingOrder = StandingOrder.standingOrder
+  $scope.standingOrder = new StandingOrder()
   $scope.customers = customers
   $scope.schedules = schedules
   $scope.paymentMethods = paymentMethods
   $scope.shippingMethods = shippingMethods
-  $scope.errors = StandingOrder.errors
+  $scope.errors = $scope.standingOrder.errors
   $scope.distributor_id = $scope.standingOrder.shop_id # variant selector requires distributor_id
   $scope.view = if $scope.standingOrder.id? then 'review' else 'details'
 
   $scope.save = ->
     $scope.standing_order_form.$setPristine()
     if $scope.standingOrder.id?
-      StandingOrder.update()
+      $scope.standingOrder.update()
     else
-      StandingOrder.create()
+      $scope.standingOrder.create()
 
   $scope.setView = (view) -> $scope.view = view
 

app/assets/javascripts/admin/standing_orders/services/standing_order.js.coffee

@@ -1,5 +1,12 @@
 angular.module("admin.standingOrders").factory "StandingOrder", ($injector, $http, StatusMessage, InfoDialog, StandingOrderResource) ->
-  instanceMethods =
+  class StandingOrder extends StandingOrderResource
+    errors: {}
+
+    constructor: (obj={}) ->
+      angular.extend(@, obj)
+      if $injector.has('standingOrder')
+        angular.extend(@, $injector.get('standingOrder'))
+
     buildItem: (item) ->
       return false unless item.variant_id > 0
       return false unless item.quantity > 0
@@ -19,19 +26,10 @@ angular.module("admin.standingOrders").factory "StandingOrder", ($injector, $htt
       else
         @standing_line_items.splice(index,1)
 
-  new class StandingOrder
-    standingOrder: new StandingOrderResource()
-    errors: {}
-
-    constructor: ->
-      if $injector.has('standingOrder')
-        angular.extend(@standingOrder, $injector.get('standingOrder'), instanceMethods)
-
     create: ->
       StatusMessage.display 'progress', 'Saving...'
       delete @errors[k] for k, v of @errors
-      @standingOrder.$save().then (response) =>
-        angular.extend(@standingOrder, instanceMethods)
+      @$save().then (response) =>
         StatusMessage.display 'success', 'Saved'
       , (response) =>
         StatusMessage.display 'failure', 'Oh no! I was unable to save your changes.'
@@ -40,8 +38,7 @@ angular.module("admin.standingOrders").factory "StandingOrder", ($injector, $htt
     update: ->
       StatusMessage.display 'progress', 'Saving...'
       delete @errors[k] for k, v of @errors
-      @standingOrder.$update().then (response) =>
-        angular.extend(@standingOrder, instanceMethods)
+      @$update().then (response) =>
         StatusMessage.display 'success', 'Saved'
       , (response) =>
         StatusMessage.display 'failure', 'Oh no! I was unable to save your changes.'

app/assets/javascripts/admin/standing_orders/services/standing_orders.js.coffee

@@ -1,4 +1,4 @@
-angular.module("admin.standingOrders").factory 'StandingOrders', ($q, StandingOrderResource) ->
+angular.module("admin.standingOrders").factory 'StandingOrders', ($q, StandingOrderResource, StandingOrder) ->
   new class StandingOrders
     byID: {}
     pristineByID: {}
@@ -9,5 +9,6 @@ angular.module("admin.standingOrders").factory 'StandingOrders', ($q, StandingOr
 
     load: (standingOrders) ->
       for standingOrder in standingOrders
+        standingOrder = new StandingOrder(standingOrder)
         @byID[standingOrder.id] = standingOrder
         @pristineByID[standingOrder.id] = angular.copy(standingOrder)