Fix error raised when create_ops=[] or update_ops=[]

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10", 3.11, 3.12]
 
     steps:
     - uses: actions/checkout@v1

django_restql/fields.py

@@ -82,8 +82,9 @@ def BaseNestedFieldSerializerFactory(
 
     def join_words(words, many='are', single='is'):
         word_list = ["`" + word + "`" for word in words]
-        sentence = " & ".join([", ".join(word_list[:-1]), word_list[-1]])
+
         if len(words) > 1:
+            sentence = " & ".join([", ".join(word_list[:-1]), word_list[-1]])
             return "%s %s" % (many, sentence)
         elif len(words) == 1:
             return "%s %s" % (single, word_list[0])
@@ -130,7 +131,7 @@ def run_pk_list_validation(self, pks):
                 many=True
             ).run_validation(pks)
 
-        def run_data_list_validation(self, data, partial=None):
+        def run_data_list_validation(self, data, partial=None, operation=None):
             ListField().run_validation(data)
             model = self.parent.Meta.model
             rel = getattr(model, self.source).rel
@@ -142,7 +143,7 @@ def run_data_list_validation(self, data, partial=None):
                     data=data,
                     many=True,
                     partial=partial,
-                    context=self.context
+                    context={**self.context, "parent_operation": operation}
                 )
 
                 # Remove parent field(field_name) for validation purpose
@@ -157,7 +158,7 @@ def run_data_list_validation(self, data, partial=None):
                     data=data,
                     many=True,
                     partial=partial,
-                    context=self.context
+                    context={**self.context, "parent_operation": operation}
                 )
 
                 # Check if a serializer is valid
@@ -169,7 +170,8 @@ def run_add_list_validation(self, data):
         def run_create_list_validation(self, data):
             self.run_data_list_validation(
                 data,
-                partial=self.is_partial(False)
+                partial=self.is_partial(False),
+                operation=CREATE
             )
 
         def run_remove_list_validation(self, data):
@@ -190,7 +192,8 @@ def run_update_list_validation(self, data):
             values = list(data.values())
             self.run_data_list_validation(
                 values,
-                partial=self.is_partial(True)
+                partial=self.is_partial(True),
+                operation=UPDATE
             )
 
         def run_data_validation(self, data, allowed_ops):
@@ -226,8 +229,14 @@ def run_data_validation(self, data, allowed_ops):
 
         def to_internal_value(self, data):
             if self.child.root.instance is None:
-                self.run_data_validation(data, create_ops)
+                parent_operation = self.context.get("parent_operation")
+                if parent_operation == "update":
+                    # Definitely an update
+                    self.run_data_validation(data, update_ops)
+                else:
+                    self.run_data_validation(data, create_ops)
             else:
+                # Definitely an update
                 self.run_data_validation(data, update_ops)
             return data
 
@@ -265,13 +274,15 @@ def run_pk_validation(self, pk):
             return validator.run_validation(pk)
 
         def run_data_validation(self, data):
+            parent_operation = self.context.get("parent_operation")
+
             child_serializer = serializer_class(
                 **self.validation_kwargs,
                 data=data,
                 partial=self.is_partial(
                     # Use the partial value passed, if it's not passed
                     # Use the one from the top level parent
-                    self.root.partial
+                    True if parent_operation == UPDATE else False
                 ),
                 context=self.context
             )

django_restql/mixins.py

@@ -1,4 +1,5 @@
 from django.db.models import Prefetch
+from django.core.exceptions import ObjectDoesNotExist
 from django.db.models.fields.related import ManyToManyRel, ManyToOneRel
 from django.http import QueryDict
 from django.utils.functional import cached_property
@@ -597,7 +598,7 @@ def create_writable_foreignkey_related(self, data):
                 # Reject partial update by default(if partial kwarg is not passed)
                 # since we need all required fields when creating object
                 partial=nested_field_serializer.is_partial(False),
-                context=self.context
+                context={**self.context, "parent_operation": CREATE}
             )
             serializer.is_valid(raise_exception=True)
             if value is None:
@@ -622,7 +623,7 @@ def bulk_create_objs(self, field, data):
                 # Reject partial update by default(if partial kwarg is not passed)
                 # since we need all required fields when creating object
                 partial=nested_field_serializer.is_partial(False),
-                context=self.context,
+                context={**self.context, "parent_operation": CREATE},
             )
             serializer.is_valid(raise_exception=True)
             obj = serializer.save()
@@ -770,7 +771,7 @@ def update_writable_foreignkey_related(self, instance, data):
                 # Allow partial update by default(if partial kwarg is not passed)
                 # since this is nested update
                 partial=nested_field_serializer.is_partial(True),
-                context=self.context
+                context={**self.context, "parent_operation": UPDATE}
             )
             serializer.is_valid(raise_exception=True)
             if values is None:
@@ -798,7 +799,7 @@ def bulk_create_many_to_many_related(self, field, nested_obj, data):
                 # Reject partial update by default(if partial kwarg is not passed)
                 # since we need all required fields when creating object
                 partial=nested_field_serializer.is_partial(False),
-                context=self.context
+                context={**self.context, "parent_operation": CREATE}
             )
             serializer.is_valid(raise_exception=True)
             obj = serializer.save()
@@ -819,7 +820,7 @@ def bulk_create_many_to_one_related(self, field, nested_obj, data):
                 # Reject partial update by default(if partial kwarg is not passed)
                 # since we need all required fields when creating object
                 partial=nested_field_serializer.is_partial(False),
-                context=self.context
+                context={**self.context, "parent_operation": CREATE}
             )
             serializer.is_valid(raise_exception=True)
             obj = serializer.save()
@@ -834,15 +835,19 @@ def bulk_update_many_to_many_related(self, field, nested_obj, data):
         serializer_class = nested_field_serializer.serializer_class
         kwargs = nested_field_serializer.validation_kwargs
         for pk, values in data.items():
-            obj = nested_obj.get(pk=pk)
+            try:
+                obj = nested_obj.get(pk=pk)
+            except ObjectDoesNotExist:
+                # This pk does't belong to nested field
+                continue
             serializer = serializer_class(
                 obj,
                 **kwargs,
                 data=values,
                 # Allow partial update by default(if partial kwarg is not passed)
                 # since this is nested update
                 partial=nested_field_serializer.is_partial(True),
-                context=self.context
+                context={**self.context, "parent_operation": UPDATE}
             )
             serializer.is_valid(raise_exception=True)
             obj = serializer.save()
@@ -858,7 +863,11 @@ def bulk_update_many_to_one_related(self, field, instance, data):
         foreignkey = getattr(model, field).field.name
         nested_obj = getattr(instance, field)
         for pk, values in data.items():
-            obj = nested_obj.get(pk=pk)
+            try:
+                obj = nested_obj.get(pk=pk)
+            except ObjectDoesNotExist:
+                # This pk does't belong to nested field
+                continue
             values.update({foreignkey: instance.pk})
             serializer = serializer_class(
                 obj,
@@ -867,7 +876,7 @@ def bulk_update_many_to_one_related(self, field, instance, data):
                 # Allow partial update by default(if partial kwarg is not passed)
                 # since this is nested update
                 partial=nested_field_serializer.is_partial(True),
-                context=self.context
+                context={**self.context, "parent_operation": UPDATE}
             )
             serializer.is_valid(raise_exception=True)
             obj = serializer.save()

setup.py

@@ -72,6 +72,7 @@ def get_info(info_name):
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
     ],
     test_suite='runtests',
 )

tests/test_views.py

@@ -2535,7 +2535,7 @@ def test_patch_with_update_operation_missing_one_required_nested_field(self):
             }
         )
 
-    def test_patch_on_deep_nested_fields(self):
+    def test_patch_with_mixed_operations(self):
         url = reverse_lazy("wstudent-detail", args=[self.student.id])
         data = {
             "name": "yezy",
@@ -2544,7 +2544,34 @@ def test_patch_on_deep_nested_fields(self):
                 "name": "Programming",
                 "code": "CS50",
                 "books": {
-                    "remove": [1]
+                    "update": {
+                        1: {
+                            "title": "React Programming",
+                            "author": "K.Kennedy",
+                            "genres": {
+                                # update_operations applies here since the parent is "update"
+                                "remove": [],
+                                "add": [],
+                                "create": [
+                                    {"title": "Modern Programming", "description": "New tools"}
+                                ],
+                                "update": {}
+                            }
+                        }
+                    },
+                    "create": [
+                        {
+                            "title": "CS Foundation",
+                            "author": "T.Howard",
+                            "genres": {
+                                # create_operations applies here since the parent is "create"
+                                "add": [],
+                                "create": [
+                                    {"title": "Classical Programming", "description": "Classical tech tools"}
+                                ]
+                            }
+                        }
+                    ]
                 }
             }
         }
@@ -2557,7 +2584,13 @@ def test_patch_on_deep_nested_fields(self):
                 'course': {
                     'name': 'Programming', 'code': 'CS50',
                     'books': [
-                        {'title': 'Basic Data Structures', 'author': 'S.Mobit', "genres": []}
+                        {'title': 'React Programming', 'author': 'K.Kennedy', "genres": [
+                            {"title": "Modern Programming", "description": "New tools"}
+                        ]},
+                        {'title': 'Basic Data Structures', 'author': 'S.Mobit', 'genres': []},
+                        {'title': 'CS Foundation', 'author': 'T.Howard', "genres": [
+                            {"title": "Classical Programming", "description": "Classical tech tools"}
+                        ]}
                     ],
                     'instructor': None
                 },

tests/testapp/serializers.py

@@ -122,7 +122,7 @@ class Meta:
 
 ############### Serializers for Nested Data Mutation Testing ##############
 class WritableBookSerializer(DynamicFieldsMixin, NestedModelSerializer):
-    genres = NestedField(GenreSerializer, many=True, required=False)
+    genres = NestedField(GenreSerializer, many=True, required=False, partial=False)
 
     class Meta:
         model = Book

tox.ini

@@ -2,21 +2,21 @@
 
 [tox]
 envlist =
-    py{36,37}-dj{111}-drf{35,36,37,38,39,310,311}
-    py{36,37}-dj{20,21,22}-drf{37,38,39,310,311}
+    py{37}-dj{111}-drf{35,36,37,38,39,310,311}
+    py{37}-dj{20,21,22}-drf{37,38,39,310,311}
     py{38,39}-dj{22}-drf{37,38,39,310,311,312}
     py{36,37,38,39}-dj{30}-drf{310,311,312}
     py{36,37,38,39,310}-dj{31,32}-drf{311,312,313,314}
-    py{38,39,310,311}-dj{40,41}-drf{313,314}
+    py{38,39,310,311,312}-dj{40,41}-drf{313,314}
 
 [gh-actions]
 python =
-    3.6: py36
     3.7: py37
     3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 DJANGO =
     1.11: dj111