def account_is_active(cls, user_id):
# detect activity on a user account
result = False
has_friends = True if EnkiModelFriends.fetch_by_user_id(
user_id) else False
has_messages = True if EnkiModelMessage.exist_sent_or_received(
user_id) else False
has_forum_posts = True if EnkiModelPost.fetch_by_author(
user_id) else False
has_product = True if EnkiModelProductKey.exist_by_purchaser_or_activator(
user_id) else False
has_email_subscriptions = False
email = ndb.Key(EnkiModelUser, user_id).get().email
if email:
has_email_subscriptions = True if EnkiModelEmailSubscriptions.exist_by_email(
email) else False
if has_friends or has_messages or has_forum_posts or has_product or has_email_subscriptions:
result = True
return result
