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Joel Falknau
2025-06-19 20:30:37 +10:00
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docs/development/tech_docu/celery.md
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@@ -271,14 +271,14 @@ Every Alliance Auth installation will come with a couple of special celery relat
Celery-once is a celery extension "that allows you to prevent multiple execution and queuing of celery tasks". What that means is that you can ensure that only one instance of a celery task runs at any given time. This can be useful, for example, if you do not want multiple instances of your task to talk to the same external service at the same time.
We use a custom backend for celery_once in Alliance Auth defined [here](https://gitlab.com/allianceauth/allianceauth/-/blob/master/allianceauth/services/tasks.py#L14)
We use a custom backend for celery_once in Alliance Auth defined [allianceauth.services.tasks.celery_once](https://gitlab.com/allianceauth/allianceauth/-/blob/master/allianceauth/services/tasks.py#L14)
You can import it for use like so:
```python
from allianceauth.services.tasks import QueueOnce
```
An example of Alliance Auth's use within the `@sharedtask` decorator, can be seen [here](https://gitlab.com/allianceauth/allianceauth/-/blob/master/allianceauth/services/modules/discord/tasks.py#L62) in the discord module
An example of Alliance Auth's use within the `@sharedtask` decorator, can be seen [allianceauth.services.modules.discord.tasks](https://gitlab.com/allianceauth/allianceauth/-/blob/master/allianceauth/services/modules/discord/tasks.py#L62) in the discord module
You can use it like so:
```python