mongoengine connection and multiple databases - mongodb

Question

I have 2 databases I want to query from, but I only get results from one. I'm using mongoengine with python and graphene (it's my first time). I've exhausted my search and I don't understand how I can resolve this issue. Here is my code:
import graphene
from mongoengine import Document, connect
from mongoengine.context_managers import switch_collection
from mongoengine.fields import (
StringField,
UUIDField,
IntField,
FloatField,
BooleanField,
)
from graphene_mongo import MongoengineObjectType
from mongoengine.connection import disconnect
class UserModel(Document):
meta = {"collection": "users"}
userID = UUIDField()
first_name = StringField()
last_name = StringField()
class Users(MongoengineObjectType):
class Meta:
model = UserModel
class UsersQuery(graphene.ObjectType):
users = graphene.List(Users)
user = graphene.Field(Users, userID=graphene.UUID())
def resolve_users(self, info):
db = connect("users")
users = list(UserModel.objects.all())
db.close()
return users
def resolve_user(self, info, userID):
return UserModel.objects(userID=userID).first()
users_schema = graphene.Schema(query=UsersQuery)
import graphene
from mongoengine import Document, connect
from mongoengine.fields import StringField, UUIDField
from graphene_mongo import MongoengineObjectType
from mongoengine.connection import disconnect
class Workout(Document):
meta = {"collection": "workouts"}
workoutID = UUIDField()
workout_label = StringField()
class Workouts(MongoengineObjectType):
class Meta:
model = Workout
class Query(graphene.ObjectType):
workouts = graphene.List(Workouts)
workout = graphene.Field(Workouts, workoutID=graphene.UUID())
def resolve_workouts(self, info):
db = connect("workouts")
wks = list(Workout.objects.all())
db.close()
return wks
def resolve_workout(self, info, workoutID):
return Workout.objects(workoutID=workoutID).first()
workouts_schema = graphene.Schema(query=Query)
Now when I have my python server up, mongod running I can hit the /workouts and it will return the array I need. But /users will not return the results.
I get no errors, nothing is wrong with my graphene query.
I can only get one of the queries to work at once.
I have tried using alias, not closing the connections, declaring the connect at the top level even before class UserModel or Workout.

Answer 1

If each of your model is bound to a different database. You should use something like this (cfr docs):
connect('workouts', alias='dbworkouts') # init a connection to database named "workouts" and register it under alias "dbworkouts"
connect('users', alias='dbusers')
class Workout(Document):
meta = {"db_alias": "dbworkouts"}
workoutID = UUIDField()
...
class UserModel(Document):
meta = {"db_alias": "dbusers"}
userID = UUIDField()
...