Hi, I'm trying to update a nested document including an EmbeddedDocumentListField / EmbeddedDocument with graphene-mongo. Creating a new user via create mutation works perfectly fine, but when I try to update a nested document, it fails with the error
Invalid embedded document instance provided to an EmbeddedDocumentField: ['label']
Here is my code:
models.py:
from mongoengine import Document, EmbeddedDocumentListField, EmbeddedDocument
from mongoengine.fields import StringField
class UserLabel(EmbeddedDocument):
code = StringField()
value = StringField()
class User(Document):
meta = {'collection': 'user'}
first_name = StringField(required=True)
last_name = StringField(required=True)
label = EmbeddedDocumentListField(UserLabel)
app.py:
from flask import Flask
from flask_graphql import GraphQLView
import graphene
from graphene_mongo import MongoengineObjectType
from mongoengine import connect
from models import User as UserModel, UserLabel as UserLabelModel
app = Flask(__name__)
class UserLabel(MongoengineObjectType):
class Meta:
model = UserLabelModel
class User(MongoengineObjectType):
class Meta:
model = UserModel
class UserLabelInput(graphene.InputObjectType):
code = graphene.String()
value = graphene.String()
class UserInput(graphene.InputObjectType):
id = graphene.String()
first_name = graphene.String()
last_name = graphene.String()
label = graphene.List(UserLabelInput, required=False)
class Query(graphene.ObjectType):
users = graphene.List(User)
def resolve_users(self, info):
return list(UserModel.objects.all())
class createUser(graphene.Mutation):
user = graphene.Field(User)
class Arguments:
user_data = UserInput()
def mutate(root, info, user_data):
user = UserModel(
first_name=user_data.first_name,
last_name=user_data.last_name,
label=user_data.label
)
user.save()
return createUser(user=user)
class updateUser(graphene.Mutation):
user = graphene.Field(User)
class Arguments:
user_data = UserInput()
def mutate(self, info, user_data):
user = UserModel.objects.get(id=user_data.id)
if user_data.first_name:
user.first_name = user_data.first_name
if user_data.last_name:
user.last_name = user_data.last_name
if user_data.label:
user.label = user_data.label
user.save()
return updateUser(user=user)
class Mutation(graphene.ObjectType):
create_user = createUser.Field()
update_user = updateUser.Field()
schema = graphene.Schema(query=Query, mutation=Mutation)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view('graphql', schema=schema, graphiql=True))
if __name__ == '__main__':
app.run(debug=True, port=1234)
Trying to run this update mutation via graphiql :
mutation {
updateUser(userData: {
id: "5d6f8bbbe3ec841d93229322",
firstName: "Peter",
lastName: "Simpson",
label: [
{
code:"DE",
value: "Peter Simpson"
}
]
}) {
user {
id
firstName
lastName
label {
code
value
}
}
}
}
I get the error:
{
"errors": [
{
"message": "ValidationError (User:5d6f8bbbe3ec841d93229322) (Invalid embedded document instance provided to an EmbeddedDocumentField: ['label'])",
"locations": [
{
"line": 2,
"column": 3
}
],
"path": [
"updateUser"
]
}
],
"data": {
"updateUser": null
}
}
Updating without the nested field works perfectly fine.
How can I resolve this ?
good first issue wait for response
![[BUG] Document subclasses are cast to parent class in query results](https://avatars.githubusercontent.com/u/49740?v=4)
1 Nov 18, 2021
9 Nov 10, 2022
1 Jan 10, 2022
5 May 8, 2022
4 May 25, 2022
525 Jan 1, 2023
815 Jan 3, 2023
491 Dec 8, 2022
4 Jan 15, 2022
11k Dec 30, 2022
3.3k Jan 4, 2023
1.7k Jan 7, 2023
2.3k Dec 24, 2022
1.9k Jan 2, 2023
352 Jan 6, 2023