return user rating

resolvers/profile.py

@@ -1,25 +1,33 @@
-from orm import User, UserRole, Role
+from orm import User, UserRole, Role, UserRating
 from orm.base import local_session
 from resolvers.base import mutation, query, subscription
 from auth.authenticate import login_required
 
+from sqlalchemy import func
 from sqlalchemy.orm import selectinload
 import asyncio
 
 @query.field("getUserBySlug") # get a public profile
 async def get_user_by_slug(_, info, slug):
 	with local_session() as session:
-		user = session.query(User).filter(User.slug == slug).first()
+		row = session.query(User, func.sum(UserRating.value).label("rating")).\
+			where(User.slug == slug).\
+			join(UserRating, UserRating.user_id == User.id).\
+			group_by(User.id).\
+			first()
+	user = row.User
+	user.rating = row.rating
 	return { "user": user } # TODO: remove some fields for public
 
-
 @query.field("getCurrentUser")
 @login_required
 async def get_current_user(_, info):
 	auth = info.context["request"].auth
 	user_id = auth.user_id
+
 	with local_session() as session:
 		user = session.query(User).filter(User.id == user_id).first()
+
 	return { "user": user }
 
 @query.field("userRoles")