Order overview: Allow to filter by date

src/pretix/control/forms/filter.py

@@ -940,3 +940,51 @@ class RefundFilterForm(FilterForm):
                                       OrderRefund.REFUND_STATE_EXTERNAL])
 
         return qs
+
+
+class OverviewFilterForm(FilterForm):
+    subevent = forms.ModelChoiceField(
+        label=pgettext_lazy('subevent', 'Date'),
+        queryset=SubEvent.objects.none(),
+        required=False,
+        empty_label=pgettext_lazy('subevent', 'All dates')
+    )
+    date_axis = forms.ChoiceField(
+        label=_('Date filter'),
+        choices=(
+            ('', _('Filter by…')),
+            ('order_date', _('Order date')),
+            ('last_payment_date', _('Date of last successful payment')),
+        ),
+        required=False,
+    )
+    date_from = forms.DateField(
+        label=_('Date from'),
+        required=False,
+        widget=DatePickerWidget,
+    )
+    date_until = forms.DateField(
+        label=_('Date until'),
+        required=False,
+        widget=DatePickerWidget,
+    )
+
+    def __init__(self, *args, **kwargs):
+        self.event = kwargs.pop('event')
+        super().__init__(*args, **kwargs)
+
+        if self.event.has_subevents:
+            self.fields['subevent'].queryset = self.event.subevents.all()
+            self.fields['subevent'].widget = Select2(
+                attrs={
+                    'data-model-select2': 'event',
+                    'data-select2-url': reverse('control:event.subevents.select2', kwargs={
+                        'event': self.event.slug,
+                        'organizer': self.event.organizer.slug,
+                    }),
+                    'data-placeholder': pgettext_lazy('subevent', 'All dates')
+                }
+            )
+            self.fields['subevent'].widget.choices = self.fields['subevent'].choices
+        elif 'subevent':
+            del self.fields['subevent']