Allow to import orders (#1516)

* Allow to import orders

* seats, subevents

* Plugin support

* Add docs

* Warn about lack of quota handling

* Control interface test

* Test skeleton

* First tests for the impotr columns

* Add tests for all columns

* Fix question validation

src/tests/control/test_orderimport.py

@@ -0,0 +1,46 @@
+import pytest
+from bs4 import BeautifulSoup
+from django.core.files.uploadedfile import SimpleUploadedFile
+from django.utils.timezone import now
+
+from pretix.base.models import Event, Organizer, Team, User
+
+
+@pytest.fixture
+def env():
+    o = Organizer.objects.create(name='Dummy', slug='dummy')
+    event = Event.objects.create(
+        organizer=o, name='Dummy', slug='dummy',
+        date_from=now(), plugins='pretix.plugins.banktransfer,pretix.plugins.paypal'
+    )
+    user = User.objects.create_user('dummy@dummy.dummy', 'dummy')
+    t = Team.objects.create(organizer=event.organizer, can_view_orders=True, can_change_orders=True)
+    t.members.add(user)
+    t.limit_events.add(event)
+    return event, user
+
+
+@pytest.mark.django_db
+def test_import_csv_file(client, env):
+    client.login(email='dummy@dummy.dummy', password='dummy')
+    r = client.get('/control/event/dummy/dummy/orders/import/')
+    assert r.status_code == 200
+
+    file = SimpleUploadedFile('file.csv', """First name,Last name,Email
+Dieter,Schneider,schneider@example.org
+Daniel,Wulf,daniel@example.org
+Daniel,Wulf,daniel@example.org
+Anke,Müller,anke@example.net
+
+""".encode("utf-8"), content_type="text/csv")
+
+    r = client.post('/control/event/dummy/dummy/orders/import/', {
+        'file': file
+    }, follow=True)
+    doc = BeautifulSoup(r.content, "lxml")
+    assert doc.select("select[name=orders]")
+    assert doc.select("select[name=status]")
+    assert doc.select("select[name=attendee_email]")
+    assert b"Dieter" in r.content
+    assert b"daniel@example.org" in r.content
+    assert b"Anke" not in r.content