Move generate_object_id into migration utils

osf/utils/migrations.py

@@ -5,6 +5,7 @@
 import json
 import logging
 import warnings
+import bson
 from math import ceil
 
 
@@ -13,7 +14,6 @@
 from django.db import connection
 from django.db.migrations.operations.base import Operation
 
-from osf.models.base import generate_object_id
 from osf.utils.sanitize import strip_html, unescape_entities
 from website import settings
 from website.project.metadata.schemas import get_osf_meta_schemas
@@ -41,6 +41,11 @@
     ('textarea-xl', 'string'): 'long-text-input',
 }
 
+
+def generate_object_id():
+    return str(bson.ObjectId())
+
+
 def get_osf_models():
     """
     Helper function to retrieve all osf related models.