django-db-lock 0.1.1

Lock something and keep status in database.

Lock something and keep status in database.

Install

pip install django-db-lock

Settings

INSTALLED_APPS = [
    ...
    'django_db_lock',
    ...
]

Use inside project

import uuid
from django_db_lock import acquire_lock
from django_db_lock import release_lock

def view01(request):
    lock_name = "view01lock"
    worker_name = str(uuid.uuid4())
    timeout = 10
    locked = acquire_lock(lock_name, worker_name, timeout)
    if locked:
        try:
            ....
        finally:
            release_lock(lock_name, worker_name)
    ...

Use outout project

import requests

def view02(request):
    data = {
        "lock_name": "view02lock",
        "worker_name": str(uuid.uuid4()),
        "timeout": 10,
    }
    response = request.post("http://api.server/system/dblock/acquire-lock", data=data)
    if response["result"]:
        try:
            ....
        finally:
            request.post("http://api.server/system/dblock/acquire-lock", data=data)
    ...

Application options’ in settings.py

• REGISTER_DJANGO_DB_LOCK_ADMIN

  Register LockAdmin in django’s default admin site. Default to False.

• ENABLE_DJANGO_DB_LOCK_CSRF_PROTECT

  Enable csrf-protect for django-db-lock’s views. Default to False.