Web-based check-in interface (#1985)

src/pretix/api/serializers/checkin.py

@@ -2,6 +2,7 @@ from django.utils.translation import gettext as _
 from rest_framework import serializers
 from rest_framework.exceptions import ValidationError
 
+from pretix.api.serializers.event import SubEventSerializer
 from pretix.api.serializers.i18n import I18nAwareModelSerializer
 from pretix.base.channels import get_all_sales_channels
 from pretix.base.models import CheckinList
@@ -20,6 +21,9 @@ class CheckinListSerializer(I18nAwareModelSerializer):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
+        if 'subevent' in self.context['request'].query_params.getlist('expand'):
+            self.fields['subevent'] = SubEventSerializer(read_only=True)
+
         for exclude_field in self.context['request'].query_params.getlist('exclude'):
             p = exclude_field.split('.')
             if p[0] in self.fields:
@@ -50,4 +54,6 @@ class CheckinListSerializer(I18nAwareModelSerializer):
             if channel not in get_all_sales_channels():
                 raise ValidationError(_('Unknown sales channel.'))
 
+        CheckinList.validate_rules(data.get('rules'))
+
         return data