fix apis

cookbook/models.py

@@ -826,7 +826,7 @@ class ShoppingListRecipe(ExportModelOperationsMixin('shopping_list_recipe'), mod
 
     def get_owner(self):
         try:
-            return self.entries.first().created_by or self.shoppinglist_set.first().created_by
+            return getattr(self.entries.first(), 'created_by', None) or getattr(self.shoppinglist_set.first(), 'created_by', None)
         except AttributeError:
             return None
 

cookbook/serializer.py

@@ -357,7 +357,7 @@ class FoodSerializer(UniqueFieldsMixin, WritableNestedModelSerializer, ExtendedR
     supermarket_category = SupermarketCategorySerializer(allow_null=True, required=False)
     recipe = RecipeSimpleSerializer(allow_null=True, required=False)
     shopping = serializers.SerializerMethodField('get_shopping_status')
-    ignore_inherit = FoodInheritFieldSerializer(many=True)
+    ignore_inherit = FoodInheritFieldSerializer(many=True, allow_null=True, required=False)
 
     recipe_filter = 'steps__ingredients__food'
 

cookbook/tests/conftest.py

@@ -43,7 +43,7 @@ def space_2():
 
 def get_random_recipe(space_1, u1_s1):
     r = Recipe.objects.create(
-        name=uuid.uuid4(),
+        name=str(uuid.uuid4()),
         waiting_time=20,
         working_time=20,
         servings=4,