API: add api_meta to order

src/tests/api/test_order_change.py

@@ -255,6 +255,9 @@ def test_order_update_allowed_fields(token_client, organizer, event, order):
             organizer.slug, event.slug, order.code
         ), format='json', data={
             'comment': 'Here is a comment',
+            'api_meta': {
+                'test': 1
+            },
             'valid_if_pending': True,
             'custom_followup_at': '2021-06-12',
             'checkin_attention': True,
@@ -280,6 +283,9 @@ def test_order_update_allowed_fields(token_client, organizer, event, order):
     assert resp.status_code == 200
     order.refresh_from_db()
     assert order.comment == 'Here is a comment'
+    assert order.api_meta == {
+        'test': 1
+    }
     assert order.custom_followup_at.isoformat() == '2021-06-12'
     assert order.checkin_attention
     assert order.checkin_text == 'foobar'

src/tests/api/test_order_create.py

@@ -232,6 +232,9 @@ def test_order_create(token_client, organizer, event, item, quota, question):
     with scopes_disabled():
         customer = organizer.customers.create()
     res['customer'] = customer.identifier
+    res['api_meta'] = {
+        'test': 1
+    }
     resp = token_client.post(
         '/api/v1/organizers/{}/events/{}/orders/'.format(
             organizer.slug, event.slug
@@ -251,6 +254,9 @@ def test_order_create(token_client, organizer, event, item, quota, question):
     assert o.valid_if_pending
     assert o.expires > now()
     assert not o.testmode
+    assert o.api_meta == {
+        'test': 1
+    }
 
     with scopes_disabled():
         p = o.payments.first()
@@ -421,6 +427,7 @@ def test_order_create_simulate(token_client, organizer, event, item, quota, ques
         ],
         'total': '21.75',
         'comment': '',
+        'api_meta': {},
         "custom_followup_at": None,
         'invoice_address': {
             'is_business': False,

src/tests/api/test_orders.py

@@ -291,6 +291,7 @@ TEST_ORDER_RES = {
     "payment_provider": "banktransfer",
     "total": "23.00",
     "comment": "",
+    "api_meta": {},
     "custom_followup_at": None,
     "checkin_attention": False,
     "checkin_text": None,