Use python rather than string for primaryjoin

atst/models/user.py

@@ -1,8 +1,8 @@
-from sqlalchemy import String, ForeignKey, Column, Date, Boolean, Table, TIMESTAMP
+from sqlalchemy import and_, String, ForeignKey, Column, Date, Boolean, Table, TIMESTAMP
 from sqlalchemy.orm import relationship
 from sqlalchemy.dialects.postgresql import UUID
 
-from atst.models import Base, types, mixins
+from atst.models import Base, ApplicationRole, types, mixins
 from atst.models.permissions import Permissions
 from atst.models.portfolio_invitation import PortfolioInvitation
 from atst.models.application_invitation import ApplicationInvitation
@@ -30,7 +30,9 @@ class User(
     application_roles = relationship(
         "ApplicationRole",
         backref="user",
-        primaryjoin="and_(ApplicationRole.user_id==User.id, ApplicationRole.deleted==False)",
+        primaryjoin=and_(
+            ApplicationRole.user_id == id, ApplicationRole.deleted == False
+        ),
     )
 
     portfolio_invitations = relationship(