WIP: BOM Refactor, building order fetch and update logic with ngResource, updating rails routes

app/assets/javascripts/admin/orders/orders.js.coffee

@@ -0,0 +1 @@
+angular.module("admin.orders", ['ngResource'])

app/assets/javascripts/admin/orders/services/order_resource.js.coffee

@@ -0,0 +1,8 @@
+angular.module("admin.orders").factory 'OrderResource', ($resource) ->
+  $resource('/admin/orders/:id/:action.json', {}, {
+    'index':
+      method: 'GET'
+      isArray: true
+    'update':
+      method: 'PUT'
+  })

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

@@ -0,0 +1,34 @@
+angular.module("admin.orders").factory 'Orders', ($q, OrderResource) ->
+  new class Orders
+    ordersByID: {}
+    pristineByID: {}
+
+    index: (params={}, callback=null) ->
+    	OrderResource.index params, (data) =>
+        for order in data
+          @ordersByID[order.id] = order
+          @pristineByID[order.id] = angular.copy(order)
+
+        (callback || angular.noop)(data)
+
+    save: (order) ->
+      deferred = $q.defer()
+      order.$update({id: order.permalink})
+      .then( (data) =>
+        @pristineByID[order.id] = angular.copy(order)
+        deferred.resolve(data)
+      ).catch (response) ->
+        deferred.reject(response)
+      deferred.promise
+
+    saved: (order) ->
+      @diff(order).length == 0
+
+    diff: (order) ->
+      changed = []
+      for attr, value of order when not angular.equals(value, @pristineByID[order.id][attr])
+        changed.push attr unless attr is "$$hashKey"
+      changed
+
+    resetAttribute: (order, attribute) ->
+      order[attribute] = @pristineByID[order.id][attribute]