How to get oauth access token data saved in database

Question

To be able to make API calls on behalf of the user who granted access to django app, I have done the following :

1. I have added the field below to the UserAssociation class in the django-authopenid models (see link line 54) :

   data_access_token = models.CharField(max_length=255)
   

2. In the complete_oauth1_signin request in the django-authopenid views (see link line 428) I have added :

   access_token_data = oauth._get_access_token_data()
   

   (Note: _get_access_token_data is from the OAuthConnection class in the util.py line 1005).

3. and I have added:

   return finalize_generic_signin(
       request=request,
       user=user,
       user_identifier=user_id,
       login_provider_name=oauth_provider_name,
       link_token=access_token_data,
       redirect_url=next_url)
   

4. In addition, in the create_authenticated_user_account in the views.py (see link line 118), I have added :

   UserAssociation(
       openid_url = user_identifier,
       user = user,
       provider_name = login_provider_name,
       data_access_token = link_token
       last_used_timestamp = timezone.now()
   ).save()
   

Please tell me what action shall I do to be able to store oauth access token data.