Allow customer_external_id field (#30)

Author: hassansin

chartmogul/__init__.py

@@ -29,7 +29,7 @@
 """
 
 __title__ = 'chartmogul'
-__version__ = '1.2.3'
+__version__ = '1.2.4'
 __build__ = 0x000000
 __author__ = 'ChartMogul Ltd'
 __license__ = 'MIT'

chartmogul/api/invoice.py

@@ -42,6 +42,7 @@ class _Schema(Schema):
         uuid = fields.String()
         external_id = fields.String(allow_none=True)
         customer_uuid = fields.String(allow_none=True)
+        customer_external_id = fields.String(allow_none=True)
         data_source_uuid = fields.String(allow_none=True)
 
         currency = fields.String()

test/api/test_invoice.py

@@ -17,6 +17,7 @@
             "external_id": "INV0001",
             "date": datetime(2015, 11, 1, 0, 0, 0),  # "2015-11-01 00:00:00",
             "currency": "USD",
+            "customer_external_id": "ext-id",
             # "2015-11-15 00:00:00",
             "due_date": datetime(2015, 11, 15, 0, 0, 0),
             "line_items": [
@@ -63,6 +64,7 @@
             u"date": u"2015-11-01T00:00:00",
             u"currency": u"USD",
             u"due_date": u"2015-11-15T00:00:00",
+            u"customer_external_id": u"ext-id",
             u"line_items": [
                 {
                     u"type": "subscription",