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adding optional_field in Serializermutation to enfore some fields to be optional (#1455)
* adding optional_fields to enforce fields to be optional * adding support for all * adding unit tests * Update graphene_django/rest_framework/mutation.py Co-authored-by: Kien Dang <kiend@pm.me> * linting * linting * add missing import --------- Co-authored-by: Kien Dang <kiend@pm.me>
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@ -19,6 +19,7 @@ class SerializerMutationOptions(MutationOptions):
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model_class = None
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model_operations = ["create", "update"]
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serializer_class = None
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optional_fields = ()
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def fields_for_serializer(
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@ -28,6 +29,7 @@ def fields_for_serializer(
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is_input=False,
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convert_choices_to_enum=True,
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lookup_field=None,
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optional_fields=(),
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):
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fields = OrderedDict()
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for name, field in serializer.fields.items():
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@ -48,9 +50,13 @@ def fields_for_serializer(
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if is_not_in_only or is_excluded:
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continue
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is_optional = name in optional_fields or "__all__" in optional_fields
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fields[name] = convert_serializer_field(
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field, is_input=is_input, convert_choices_to_enum=convert_choices_to_enum
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field,
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is_input=is_input,
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convert_choices_to_enum=convert_choices_to_enum,
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force_optional=is_optional,
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)
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return fields
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@ -74,6 +80,7 @@ class SerializerMutation(ClientIDMutation):
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exclude_fields=(),
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convert_choices_to_enum=True,
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_meta=None,
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optional_fields=(),
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**options
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):
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if not serializer_class:
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@ -98,6 +105,7 @@ class SerializerMutation(ClientIDMutation):
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is_input=True,
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convert_choices_to_enum=convert_choices_to_enum,
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lookup_field=lookup_field,
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optional_fields=optional_fields,
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)
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output_fields = fields_for_serializer(
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serializer,
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@ -18,7 +18,9 @@ def get_graphene_type_from_serializer_field(field):
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)
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def convert_serializer_field(field, is_input=True, convert_choices_to_enum=True):
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def convert_serializer_field(
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field, is_input=True, convert_choices_to_enum=True, force_optional=False
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):
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"""
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Converts a django rest frameworks field to a graphql field
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and marks the field as required if we are creating an input type
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@ -31,7 +33,10 @@ def convert_serializer_field(field, is_input=True, convert_choices_to_enum=True)
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graphql_type = get_graphene_type_from_serializer_field(field)
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args = []
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kwargs = {"description": field.help_text, "required": is_input and field.required}
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kwargs = {
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"description": field.help_text,
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"required": is_input and field.required and not force_optional,
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}
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# if it is a tuple or a list it means that we are returning
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# the graphql type and the child type
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@ -3,7 +3,7 @@ import datetime
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from pytest import raises
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from rest_framework import serializers
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from graphene import Field, ResolveInfo
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from graphene import Field, ResolveInfo, String
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from graphene.types.inputobjecttype import InputObjectType
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from ...types import DjangoObjectType
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@ -105,6 +105,16 @@ def test_exclude_fields():
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assert "created" not in MyMutation.Input._meta.fields
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def test_model_serializer_optional_fields():
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class MyMutation(SerializerMutation):
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class Meta:
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serializer_class = MyModelSerializer
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optional_fields = ("cool_name",)
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assert "cool_name" in MyMutation.Input._meta.fields
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assert MyMutation.Input._meta.fields["cool_name"].type == String
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def test_write_only_field():
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class WriteOnlyFieldModelSerializer(serializers.ModelSerializer):
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password = serializers.CharField(write_only=True)
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