Refactor mark_paid out of models

src/pretix/base/services/orders.py

@@ -0,0 +1,58 @@
+from django.conf import settings
+from django.core.urlresolvers import reverse
+from django.utils.timezone import now
+from pretix.base.models import Order, Quota
+from django.utils.translation import ugettext_lazy as _
+
+
+def mark_order_paid(order, provider=None, info=None, date=None, manual=None, force=False):
+    """
+    Marks an order as paid. This clones the order object, sets the payment provider,
+    info and date and returns the cloned order object.
+
+    :param provider: The payment provider that marked this as paid
+    :type provider: str
+    :param info: The information to store in order.payment_info
+    :type info: str
+    :param date: The date the payment was received (if you pass ``None``, the current
+                 time will be used).
+    :type date: datetime
+    :param force: Whether this payment should be marked as paid even if no remaining
+                  quota is available (default: ``False``).
+    :type force: boolean
+    :raises Quota.QuotaExceededException: if the quota is exceeded and ``force`` is ``False``
+    """
+    can_be_paid, quotas_locked = order._can_be_paid(keep_locked=True)
+    if not force and can_be_paid is not True:
+        raise Quota.QuotaExceededException(can_be_paid)
+    order = order.clone()
+    order.payment_provider = provider or order.payment_provider
+    order.payment_info = info or order.payment_info
+    order.payment_date = date or now()
+    if manual is not None:
+        order.payment_manual = manual
+    order.status = Order.STATUS_PAID
+    order.save()
+
+    if quotas_locked:
+        for quota in quotas_locked:
+            quota.release()
+
+    from pretix.base.mail import mail
+    mail(
+        order.user, _('Payment received for your order: %(code)s') % {'code': order.code},
+        'pretixpresale/email/order_paid.txt',
+        {
+            'user': order.user,
+            'order': order,
+            'event': order.event,
+            'url': settings.SITE_URL + reverse('presale:event.order', kwargs={
+                'event': order.event.slug,
+                'organizer': order.event.organizer.slug,
+                'order': order.code
+            }),
+            'downloads': order.event.settings.get('ticket_download', as_type=bool)
+        },
+        order.event
+    )
+    return order