From 97b001f4f7feaf12e0260bb6e434f6aa6d392a7e Mon Sep 17 00:00:00 2001
From: AliRn76 <alirn76@yahoo.com>
Date: Wed, 14 Jul 2021 00:22:33 +0430
Subject: [PATCH] Add new generic class for listing a queryset or retrieving,
 creating, updating or deleting a model instance

---
 rest_framework/generics.py | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/rest_framework/generics.py b/rest_framework/generics.py
index 55cfafda4..4dd42a2fc 100644
--- a/rest_framework/generics.py
+++ b/rest_framework/generics.py
@@ -289,3 +289,32 @@ class RetrieveUpdateDestroyAPIView(mixins.RetrieveModelMixin,
 
     def delete(self, request, *args, **kwargs):
         return self.destroy(request, *args, **kwargs)
+
+class RetrieveListCreateUpdateDestroyAPIView(mixins.RetrieveModelMixin,
+                                             mixins.ListModelMixin,
+                                             mixins.CreateModelMixin,
+                                             mixins.UpdateModelMixin,
+                                             mixins.DestroyModelMixin,
+                                             GenericAPIView):
+    """
+    Concrete view for listing a queryset or retrieving, creating, updating or deleting a model instance,
+    """
+    def get(self, request, *args, **kwargs):
+        if kwargs.get(self.lookup_field):
+            return self.retrieve(request, *args, **kwargs)
+        else:
+            return self.list(request, *args, **kwargs)
+
+    def post(self, request, *args, **kwargs):
+        return self.create(request, *args, **kwargs)
+
+    def put(self, request, *args, **kwargs):
+        return self.update(request, *args, **kwargs)
+
+    def patch(self, request, *args, **kwargs):
+        return self.partial_update(request, *args, **kwargs)
+
+    def delete(self, request, *args, **kwargs):
+        return self.destroy(request, *args, **kwargs)
+
+`
\ No newline at end of file