Create query to get all CCPO users

atst/domain/users.py

@@ -28,6 +28,10 @@ class Users(object):
 
         return user
 
+    @classmethod
+    def get_ccpo_users(cls):
+        return db.session.query(User).filter(User.permission_sets != None).all()
+
     @classmethod
     def create(cls, dod_id, permission_sets=None, **kwargs):
         if permission_sets: