feat(models): make memberId field on pickup point optional

Closes #119

Author: ricardomatias

src/models/__tests__/address_model_test.js

@@ -13,8 +13,7 @@ test('Addresses should be initialized from JSON object', t => {
     country_code: 'DE',
     pickup_point: {
       name: 'PACKSTATION',
-      id: '802',
-      member_id: '45685217'
+      id: '802'
     }
 
   };
@@ -30,8 +29,6 @@ test('Addresses should be initialized from JSON object', t => {
   t.is(address.countryCode, 'DE');
   t.is(address.pickupPoint.name, 'PACKSTATION');
   t.is(address.pickupPoint.id, '802');
-  t.is(address.pickupPoint.memberId, '45685217');
-
 });
 
 test('Checkout addresses should be initialized from JSON object', t => {

src/models/address_models.js

@@ -9,7 +9,7 @@ import createModel from './base_model';
 const PickupPoint = createModel({
   name: { key: 'name', type: 'string' },
   id: { key: 'id', type: 'string' },
-  memberId: { key: 'member_id', type: 'string' }
+  memberId: { key: 'member_id', type: 'string', optional: true }
 });
 
 /**