Merge branch 'pizza-events-in-event-serializer' into 'master'

Add field for pizza events to the Event serializer

See merge request thalia/concrexit!687

website/events/api/serializers.py

@@ -107,7 +107,7 @@ class EventRetrieveSerializer(serializers.ModelSerializer):
                   'cancel_deadline', 'location', 'map_location', 'price',
                   'fine', 'max_participants', 'num_participants', 'status',
                   'user_registration', 'registration_allowed',
-                  'no_registration_message', 'has_fields')
+                  'no_registration_message', 'has_fields', 'is_pizza_event')
 
     description = serializers.SerializerMethodField('_description')
     user_registration = serializers.SerializerMethodField('_user_registration')
@@ -115,6 +115,7 @@ class EventRetrieveSerializer(serializers.ModelSerializer):
     registration_allowed = serializers.SerializerMethodField(
         '_registration_allowed')
     has_fields = serializers.SerializerMethodField('_has_fields')
+    is_pizza_event = serializers.SerializerMethodField('_is_pizza_event')
     status = serializers.SerializerMethodField('_status')  # DEPRECATED
 
     REGISTRATION_NOT_NEEDED = -1
@@ -170,6 +171,9 @@ class EventRetrieveSerializer(serializers.ModelSerializer):
     def _has_fields(self, instance):
         return instance.has_fields()
 
+    def _is_pizza_event(self, instance):
+        return instance.is_pizza_event()
+
 
 class EventListSerializer(serializers.ModelSerializer):
     class Meta:

website/events/models.py

 from django.core import validators
-from django.core.exceptions import ValidationError
+from django.core.exceptions import ValidationError, ObjectDoesNotExist
 from django.db import models
 from django.db.models import Q
 from django.urls import reverse
@@ -187,6 +187,13 @@ class Event(models.Model, metaclass=ModelTranslateMeta):
         return ((self.registration_start or self.registration_end)
                 and now >= self.registration_start)
 
+    def is_pizza_event(self):
+        try:
+            self.pizzaevent
+            return True
+        except ObjectDoesNotExist:
+            return False
+
     def clean(self):
         super().clean()
         errors = {}