add edit view for waitinglist entry

src/pretix/control/forms/waitinglist.py

@@ -19,12 +19,18 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
+from django.forms import ChoiceField, EmailField
 from django.urls import reverse
+from django.utils.html import escape
+from django.utils.safestring import mark_safe
+from django.utils.translation import gettext_lazy as _
 from django_scopes.forms import SafeModelChoiceField
+from phonenumber_field.formfields import PhoneNumberField
 
 from pretix.base.forms import I18nModelForm
-from pretix.base.models import WaitingListEntry
+from pretix.base.forms.questions import NamePartsFormField
-from pretix.control.forms.widgets import Select2
+from pretix.base.models import Item, ItemVariation, WaitingListEntry
+from pretix.control.forms.widgets import Select2, Select2ItemVarQuota
 
 
 class WaitingListEntryTransferForm(I18nModelForm):
@@ -54,3 +60,93 @@ class WaitingListEntryTransferForm(I18nModelForm):
         field_classes = {
             'subevent': SafeModelChoiceField,
         }
+
+
+class WaitingListEntryEditForm(I18nModelForm):
+    itemvar = ChoiceField()
+
+    def __init__(self, *args, **kwargs):
+        self.instance = kwargs.get('instance', None)
+        initial = kwargs.get('initial', {})
+        if self.instance and self.instance.pk and 'itemvar' not in initial:
+            if self.instance.variation is not None:
+                initial['itemvar'] = f'{self.instance.item.pk}-{self.instance.variation.pk}'
+            else:
+                initial['itemvar'] = self.instance.item.pk
+        kwargs['initial'] = initial
+
+        super().__init__(*args, **kwargs)
+
+        # Prevent the item field cleaning from complaining that it isn't populated
+        # the value for item is derived and populated during form.clean()
+        self.fields['item'].required = False
+
+        self.fields['name_parts'] = NamePartsFormField(
+            max_length=255,
+            required=True,
+            scheme=self.event.organizer.settings.name_scheme,
+            titles=self.event.organizer.settings.name_scheme_titles,
+            label=_('Name'),
+        )
+
+        self.fields['name_parts'].required = self.event.settings.waiting_list_names_required
+        self.fields['phone'].required = self.event.settings.waiting_list_phones_required
+
+        choices = []
+
+        items = self.event.items.prefetch_related('variations')
+        for item in items:
+            if len(item.variations.all()) > 0:
+                for v in item.variations.all():
+                    choices.append((
+                        '{}-{}'.format(item.pk, v.pk),
+                        '{} – {}'.format(item, v.value) if item.active else mark_safe(
+                            f'<strike class="text-muted">{escape(item)} – {escape(v.value)}</strike>')
+                    ))
+            else:
+                choices.append(('{}'.format(item.pk), str(item) if item.active else mark_safe(
+                    f'<strike class="text-muted">{escape(item)}</strike>')))
+
+        self.fields['itemvar'].label = _("Item and Variation")
+        self.fields['itemvar'].required = True
+        self.fields['itemvar'].widget = Select2ItemVarQuota(
+            attrs={
+                'data-model-select2': 'generic',
+                'data-select2-url': reverse('control:event.items.itemvars.select2', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                }),
+            },
+            choices=choices
+        )
+        self.fields['itemvar'].choices = choices
+
+    def clean(self):
+        cleaned_data = super().clean()
+        itemvar = cleaned_data.get('itemvar')
+
+        cleaned_data['item'] = Item.objects.get(pk=itemvar.split('-')[0])
+        if '-' in itemvar:
+            cleaned_data['variation'] = ItemVariation.objects.get(pk=itemvar.split('-')[1])
+        return cleaned_data
+
+    class Meta:
+        model = WaitingListEntry
+        fields = [
+            'email',
+            'name_parts',
+            'phone',
+            'item',
+            'variation',
+        ]
+        field_classes = {
+            'email': EmailField,
+            'phone': PhoneNumberField,
+            'item': SafeModelChoiceField,
+            'variation': SafeModelChoiceField,
+        }
+        exclude = [
+            'subevent',  # handled by EntryTransfer view
+            'voucher',  # handled by the assign operation in the WaitingListActionView
+            'priority'  # handled via thumbs up/down
+        ]

src/pretix/control/templates/pretixcontrol/waitinglist/edit.html

@@ -0,0 +1,24 @@
+{% extends "pretixcontrol/event/base.html" %}
+{% load i18n %}
+{% load bootstrap3 %}
+{% block title %}{% trans "Edit waiting list entry" %}{% endblock %}
+{% block content %}
+    <h1>{% trans "Edit waiting list entry" %}</h1>
+    <form action="" method="post" class="form-horizontal">
+        {% csrf_token %}
+
+        {% bootstrap_field form.email layout="control" %}
+        {% if names_asked %}
+            {% bootstrap_field form.name_parts layout="control" %}
+        {% endif %}
+        {% if phones_asked %}
+            {% bootstrap_field form.phone layout="control" %}
+        {% endif %}
+        {% bootstrap_field form.itemvar layout="control" %}
+        <div class="form-group submit-group">
+            <button type="submit" class="btn btn-primary btn-save">
+                {% trans "Submit" %}
+            </button>
+        </div>
+    </form>
+{% endblock %}

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

@@ -274,6 +274,7 @@
                                         <i class="fa fa-calendar" aria-hidden="true"></i>
                                     </a>
                                 {% endif %}
+                                <a href="{% url "control:event.orders.waitinglist.edit" organizer=request.event.organizer.slug event=request.event.slug entry=e.id %}" class="btn btn-default btn-sm"><i class="fa fa-pencil"></i></a>
                                 <a href="{% url "control:event.orders.waitinglist.delete" organizer=request.event.organizer.slug event=request.event.slug entry=e.id %}?next={{ request.get_full_path|urlencode }}" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a>
                             {% else %}
                                 <button class="btn btn-default btn-sm disabled">

src/pretix/control/urls.py

@@ -474,6 +474,8 @@ urlpatterns = [
         re_path(r'^waitinglist/$', waitinglist.WaitingListView.as_view(), name='event.orders.waitinglist'),
         re_path(r'^waitinglist/action$', waitinglist.WaitingListActionView.as_view(), name='event.orders.waitinglist.action'),
         re_path(r'^waitinglist/auto_assign$', waitinglist.AutoAssign.as_view(), name='event.orders.waitinglist.auto'),
+        re_path(r'^waitinglist/(?P<entry>\d+)/edit$', waitinglist.EntryEdit.as_view(),
+                name='event.orders.waitinglist.edit'),
         re_path(r'^waitinglist/(?P<entry>\d+)/delete$', waitinglist.EntryDelete.as_view(),
                 name='event.orders.waitinglist.delete'),
         re_path(r'^waitinglist/(?P<entry>\d+)/transfer$', waitinglist.EntryTransfer.as_view(),

src/pretix/control/views/waitinglist.py

@@ -53,7 +53,9 @@ from pretix.base.models import Item, LogEntry, Quota, WaitingListEntry
 from pretix.base.models.waitinglist import WaitingListException
 from pretix.base.services.waitinglist import assign_automatically
 from pretix.base.views.tasks import AsyncAction
-from pretix.control.forms.waitinglist import WaitingListEntryTransferForm
+from pretix.control.forms.waitinglist import (
+    WaitingListEntryEditForm, WaitingListEntryTransferForm,
+)
 from pretix.control.permissions import EventPermissionRequiredMixin
 from pretix.control.views import PaginationMixin
 
@@ -390,6 +392,44 @@ class EntryDelete(EventPermissionRequiredMixin, CompatDeleteView):
         })
 
 
+class EntryEdit(EventPermissionRequiredMixin, UpdateView):
+    model = WaitingListEntry
+    template_name = 'pretixcontrol/waitinglist/edit.html'
+    permission = 'can_change_orders'
+    form_class = WaitingListEntryEditForm
+    context_object_name = 'entry'
+
+    def get_object(self, queryset=None):
+        return get_object_or_404(WaitingListEntry, pk=self.kwargs['entry'], event=self.request.event)
+
+    def get_context_data(self, **kwargs):
+        ctx = super().get_context_data(**kwargs)
+        ctx['names_asked'] = self.request.event.settings.waiting_list_names_asked
+        ctx['phones_asked'] = self.request.event.settings.waiting_list_phones_asked
+        return ctx
+
+    @transaction.atomic
+    def form_valid(self, form):
+        messages.success(self.request, _('The waitinglist entry has been updated.'))
+        if form.has_changed():
+            self.object.log_action(
+                'pretix.event.orders.waitinglist.changed', user=self.request.user, data={
+                    k: form.cleaned_data.get(k) for k in form.changed_data
+                }
+            )
+        return super().form_valid(form)
+
+    def form_invalid(self, form):
+        messages.error(self.request, _('We could not save your changes. See below for details.'))
+        return super().form_invalid(form)
+
+    def get_success_url(self) -> str:
+        return reverse('control:event.orders.waitinglist', kwargs={
+            'event': self.request.event.slug,
+            'organizer': self.request.event.organizer.slug
+        })
+
+
 class EntryTransfer(EventPermissionRequiredMixin, UpdateView):
     model = WaitingListEntry
     template_name = 'pretixcontrol/waitinglist/transfer.html'