Allow to reactivate canceled orders (#1601)

src/pretix/control/logdisplay.py

@@ -191,6 +191,7 @@ def pretixcontrol_logentry_display(sender: Event, logentry: LogEntry, **kwargs):
         'pretix.event.order.paid': _('The order has been marked as paid.'),
         'pretix.event.order.refunded': _('The order has been refunded.'),
         'pretix.event.order.canceled': _('The order has been canceled.'),
+        'pretix.event.order.reactivated': _('The order has been reactivated.'),
         'pretix.event.order.deleted': _('The test mode order {code} has been deleted.'),
         'pretix.event.order.placed': _('The order has been created.'),
         'pretix.event.order.placed.require_approval': _('The order requires approval before it can continue to be processed.'),

src/pretix/control/templates/pretixcontrol/order/index.html

@@ -59,6 +59,10 @@
                             <a href="{% url "control:event.order.transition" event=request.event.slug organizer=request.event.organizer.slug code=order.code %}?status=c" class="btn btn-default">
                                 {% trans "Cancel order" %}
                             </a>
+                        {% elif order.status == 'c' %}
+                            <a href="{% url "control:event.order.reactivate" event=request.event.slug organizer=request.event.organizer.slug code=order.code %}" class="btn btn-default">
+                                {% trans "Reactivate order" %}
+                            </a>
                         {% endif %}
                     {% endif %}
 

src/pretix/control/templates/pretixcontrol/order/reactivate.html

@@ -0,0 +1,38 @@
+{% extends "pretixcontrol/event/base.html" %}
+{% load i18n %}
+{% load bootstrap3 %}
+{% block title %}
+    {% trans "Reactivate order" %}
+{% endblock %}
+{% block content %}
+    <h1>
+        {% trans "Reactivate order" %}
+        <a class="btn btn-link btn-lg"
+           href="{% url "control:event.order" event=request.event.slug organizer=request.event.organizer.slug code=order.code %}">
+            {% blocktrans trimmed with order=order.code %}
+                Back to order {{ order }}
+            {% endblocktrans %}
+        </a>
+    </h1>
+    <p>
+        {% blocktrans trimmed %}
+            By reactivating the order, you reverse its cancellation and transform this back into a pending or paid order.
+            This is only possible as long as all products in the order are still available.
+            If the order is pending payment, the expiry date will be reset.
+        {% endblocktrans %}
+    </p>
+
+    <form method="post" class="form-horizontal" href="">
+        {% csrf_token %}
+        <div class="form-group submit-group">
+            <a class="btn btn-default btn-lg"
+               href="{% url "control:event.order" event=request.event.slug organizer=request.event.organizer.slug code=order.code %}">
+                {% trans "Cancel" %}
+            </a>
+            <button class="btn btn-danger btn-save btn-lg" type="submit">
+                {% trans "Reactivate" %}
+            </button>
+            <div class="clearfix"></div>
+        </div>
+    </form>
+{% endblock %}

src/pretix/control/urls.py

@@ -222,6 +222,8 @@ urlpatterns = [
             name='event.order.checkvatid'),
         url(r'^orders/(?P<code>[0-9A-Z]+)/extend$', orders.OrderExtend.as_view(),
             name='event.order.extend'),
+        url(r'^orders/(?P<code>[0-9A-Z]+)/reactivate$', orders.OrderReactivate.as_view(),
+            name='event.order.reactivate'),
         url(r'^orders/(?P<code>[0-9A-Z]+)/contact$', orders.OrderContactChange.as_view(),
             name='event.order.contact'),
         url(r'^orders/(?P<code>[0-9A-Z]+)/locale', orders.OrderLocaleChange.as_view(),

src/pretix/control/views/orders.py

@@ -57,7 +57,7 @@ from pretix.base.services.mail import SendMailException, render_mail
 from pretix.base.services.orders import (
     OrderChangeManager, OrderError, approve_order, cancel_order, deny_order,
     extend_order, mark_order_expired, mark_order_refunded,
-    notify_user_changed_order,
+    notify_user_changed_order, reactivate_order,
 )
 from pretix.base.services.stats import order_overview
 from pretix.base.services.tickets import generate
@@ -1261,6 +1261,42 @@ class OrderExtend(OrderView):
                           data=self.request.POST if self.request.method == "POST" else None)
 
 
+class OrderReactivate(OrderView):
+    permission = 'can_change_orders'
+
+    def post(self, *args, **kwargs):
+        try:
+            reactivate_order(
+                self.order,
+                user=self.request.user
+            )
+            messages.success(self.request, _('The order has been reactivated.'))
+        except OrderError as e:
+            messages.error(self.request, str(e))
+            return self._redirect_here()
+        except LockTimeoutException:
+            messages.error(self.request, _('We were not able to process the request completely as the '
+                                           'server was too busy.'))
+        return self._redirect_back()
+
+    def dispatch(self, request, *args, **kwargs):
+        if self.order.status != Order.STATUS_CANCELED:
+            messages.error(self.request, _('This action is only allowed for canceled orders.'))
+            return self._redirect_back()
+        return super().dispatch(request, *kwargs, **kwargs)
+
+    def _redirect_here(self):
+        return redirect('control:event.order.reactivate',
+                        event=self.request.event.slug,
+                        organizer=self.request.event.organizer.slug,
+                        code=self.order.code)
+
+    def get(self, *args, **kwargs):
+        return render(self.request, 'pretixcontrol/order/reactivate.html', {
+            'order': self.order,
+        })
+
+
 class OrderChange(OrderView):
     permission = 'can_change_orders'
     template_name = 'pretixcontrol/order/change.html'