Add Reusable Media Exchange to Checkin API

src/pretix/base/settings.py

@@ -217,6 +217,19 @@ DEFAULTS = {
                         "later.")
         )
     },
+    'reusable_media_usage_enforced': {
+        'default': 'False',
+        'type': bool,
+        'form_class': forms.BooleanField,
+        'serializer_class': serializers.BooleanField,
+        'form_kwargs': dict(
+            label=_("Enforce the usage of issued re-usable media for check-in"),
+            help_text=_("If enabled, a ticket barcode will not be accepted anymore, if a re-usable media has been "
+                        "created and linked to a ticket. Keeping this option turned off will treat the re-usable "
+                        "medium and ticket as equals."),
+            widget=forms.CheckboxInput(attrs={'data-display-dependency': '#id_settings-reusable_media_active'}),
+        )
+    },
     'reusable_media_type_barcode': {
         'default': 'False',
         'type': bool,