Migrating data when changing an NDB field's property type

Question

Suppose I initially create an ndb.Model and wanted to change a field\'s ndb property type (e.g. IntegerProperty to StringProperty), but wanted to cast the current data store

Answer 1

Just adding to Tim's answer, if you want to change your property to Text, you can:

from google.appengine.api import datastore_types

(...)

for i in results:
    i['production_year'] = datastore_types.Text(i['production_year'])