Hello!
As I commented in other post
(https://groups.google.com/forum/#!topic/web2py/ZbEndj2H-fk) I have
problems using APNSWrapper feedback service sending push notifications.
While I wait for an answer I've thought a possible solution to my problem.
This solution consists in:
1. I'm going to send push notifications to a series of device tokens.
2. For the current device token I mark it as "wrong" in the database.
3. I send the push notifications.
4.1. If the token is wrong the push notification is not sent and
APNSWrapper fails and the loop of tokens is broken.
4.2. If the token is right the push notification is sent.
5. I mark that token as "right" in the database.
This way I can check the database and remove all tokens marked with "wrong".
The problem is that I'm executing this loop not in the main thread and I'm
having lots of problems: crashes, error for database connection closed,
etc...
This is my code:
ifcPushnotifications.py (is a module)
push_thread = threading.Thread(target=__sendPushToUsersInBackground, args=(
users, db))
push_thread.start()
def __sendPushToUsersInBackground(users, db):
wrapper = APNSNotificationWrapper('mycert.pem', False)
for user in users:
_tokenRow = db(db.push_notifs_table.userId == user['id'])
_tokenRow.update(status='wrong')
__sendPushToUser(user)
_tokenRow.update(status='right')
If user's token is wrong __sendPushToUser fails and the loop leaves its
execution, so in the database it should be 'wrong'.
My problem is that all 3 lines related to database (2 updates and the
query) fail randomly, sometimes crashes, sometimes returns an error of
closed database and do nothing, etc...
So, how could I use my database inside a thread so I can avoid this errors?
Thank you very much and kind regards!
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