Fix #978 -- Allow to split names (#1049)

- [x] attendee names
- [x] Invoice address names
- [x] Data migration
- [x] API serializers
  - [x] orderposition
  - [x] cartposition
  - [x] invoiceaddress
  - [x] checkinlistposition
- [x] position API search
- [x] invoice API search
- [x] business/individual required toggle
- [x] Split columns in CSV exports
- [x] ticket editor
- [x] shredder
- [x] ticket/invoice sample data
- [x] order search
- [x] Handle changed naming scheme
- [x] tests
- [x] make use in:
  - [x] Boabee
  - [x] Certificate download order
  - [x] Badge download order
  - [x] Ticket download order
- [x] Document new MySQL requirement
- [x] Plugins

src/tests/plugins/pretixdroid/test_simple.py

@@ -36,11 +36,11 @@ def env():
     )
     op1 = OrderPosition.objects.create(
         order=o1, item=shirt, variation=shirt_red,
-        price=12, attendee_name=None, secret='1234'
+        price=12, attendee_name_parts={}, secret='1234'
     )
     op2 = OrderPosition.objects.create(
         order=o1, item=ticket,
-        price=23, attendee_name="Peter", secret='5678910'
+        price=23, attendee_name_parts={"full_name": "Peter", "_scheme": "full"}, secret='5678910'
     )
     cl1 = event.checkin_lists.create(name="Foo", all_products=True)
     cl2 = event.checkin_lists.create(name="Bar", all_products=True)
@@ -273,7 +273,7 @@ def test_search_restricted(client, env):
 @pytest.mark.django_db
 def test_search_invoice_name(client, env):
     AppConfiguration.objects.create(event=env[0], key='abcdefg', list=env[5])
-    InvoiceAddress.objects.create(order=env[2], name="John")
+    InvoiceAddress.objects.create(order=env[2], name_parts={"full_name": "John", "_scheme": "full"})
     resp = client.get('/pretixdroid/api/%s/%s/search/?key=%s&query=%s' % (
         env[0].organizer.slug, env[0].slug, 'abcdefg', 'John'))
     jdata = json.loads(resp.content.decode("utf-8"))

src/tests/plugins/pretixdroid/test_subevents.py

@@ -39,11 +39,11 @@ def env():
     )
     op1 = OrderPosition.objects.create(
         order=o1, item=shirt, variation=shirt_red,
-        price=12, attendee_name=None, secret='1234', subevent=se1
+        price=12, attendee_name_parts={}, secret='1234', subevent=se1
     )
     op2 = OrderPosition.objects.create(
         order=o1, item=ticket,
-        price=23, attendee_name="Peter", secret='5678910', subevent=se2
+        price=23, attendee_name_parts={'full_name': "Peter"}, secret='5678910', subevent=se2
     )
     cl1 = event.checkin_lists.create(name="Foo", all_products=True, subevent=se1)
     cl2 = event.checkin_lists.create(name="Foo", all_products=True, subevent=se2)