fix: custom base serializer

codeforlife/serializers/__init__.py

@@ -3,4 +3,5 @@
 Created on 20/01/2024 at 11:19:12(+00:00).
 """
 
+from .base import *
 from .model import *

codeforlife/serializers/base.py

@@ -0,0 +1,41 @@
+"""
+© Ocado Group
+Created on 29/01/2024 at 14:27:09(+00:00).
+
+Base serializer.
+"""
+
+import typing as t
+
+from django.contrib.auth.models import AnonymousUser
+from rest_framework.serializers import BaseSerializer as _BaseSerializer
+
+from ..request import Request
+from ..user.models import User
+
+
+# pylint: disable-next=abstract-method
+class BaseSerializer(_BaseSerializer):
+    """Base serializer to be inherited by all other serializers."""
+
+    @property
+    def request(self):
+        """The HTTP request that triggered the view."""
+
+        return t.cast(Request, self.context["request"])
+
+    @property
+    def request_user(self):
+        """
+        The user that made the request. Assumes the user has authenticated.
+        """
+
+        return t.cast(User, self.request.user)
+
+    @property
+    def request_anon_user(self):
+        """
+        The user that made the request. Assumes the user has not authenticated.
+        """
+
+        return t.cast(AnonymousUser, self.request.user)

codeforlife/serializers/model.py

@@ -12,10 +12,16 @@
 from rest_framework.serializers import ModelSerializer as _ModelSerializer
 from rest_framework.serializers import ValidationError as _ValidationError
 
+from .base import BaseSerializer
+
 AnyModel = t.TypeVar("AnyModel", bound=Model)
 
 
-class ModelSerializer(_ModelSerializer[AnyModel], t.Generic[AnyModel]):
+class ModelSerializer(
+    BaseSerializer,
+    _ModelSerializer[AnyModel],
+    t.Generic[AnyModel],
+):
     """Base model serializer for all model serializers."""
 
     # pylint: disable-next=useless-parent-delegation
@@ -31,6 +37,7 @@ def validate(self, attrs: t.Dict[str, t.Any]):
 
 
 class ModelListSerializer(
+    BaseSerializer,
     t.Generic[AnyModel],
     _ListSerializer[t.List[AnyModel]],
 ):