Django RQ Scheduler

Notice: Starting v2023.1, requirement for rq_scheduler was removed and instead one of the django-rq workers should run with --with-scheduler parameter as mentioned here.

A database backed job scheduler for Django RQ. Based on original django-rq-scheduler - Now supports Django 4.0.

This allows remembering scheduled jobs, their parameters, etc.

Installation

1. Use pip to install:

pip install django-rq-scheduler

2. In settings.py, add django_rq and scheduler to INSTALLED_APPS:

INSTALLED_APPS = [
    ...
    'django_rq',
    'scheduler',
    ...
]

3. Configure Django RQ. See https://github.com/ui/django-rq#installation

   Add at least one Redis Queue to your settings.py:

RQ_QUEUES = {
  'default': {
      'HOST': 'localhost',
      'PORT': 6379,
      'DB': 0,
      'PASSWORD': 'some-password',
      'DEFAULT_TIMEOUT': 360,
  },
}

4. Run migrations.

./manage.py migrate

Usage

Making a method in your code a schedulable job to be run by a worker.

See http://python-rq.org/docs/jobs/ or https://github.com/ui/django-rq#job-decorator

An example (myapp/jobs.py file):

from django_rq import job

@job
def count():
    return 1 + 1

Scheduling a Job

Scheduled Job

1. Sign in to the Django Admin site, http://localhost:8000/admin/ and locate the Django RQ Scheduler section.
2. Click on the Add link for Scheduled Job.
3. Enter a unique name for the job in the Name field.
4. In the Callable field, enter a Python dot notation path to the method that defines the job. For the example above, that would be myapp.jobs.count
5. Choose your Queue. Side Note: The queues listed are defined in the Django Settings.
6. Enter the time the job is to be executed in the Scheduled time field. Side Note: Enter the date via the browser's local timezone, the time will automatically convert UTC.
7. Click the Save button to schedule the job.

Repeatable Job

1. Sign in to the Django Admin site, http://localhost:8000/admin/ and locate the Django RQ Scheduler section.
2. Click on the Add link for Repeatable Job
3. Enter a unique name for the job in the Name field.
4. In the Callable field, enter a Python dot notation path to the method that defines the job. For the example above, that would be myapp.jobs.count
5. Choose your Queue. Side Note: The queues listed are defined in the Django Settings.
6. Enter the time the first job is to be executed in the Scheduled time field. Side Note: Enter the date via the browser's local timezone, the time will automatically convert UTC.
7. Enter an Interval, and choose the Interval unit. This will calculate the time before the function is called again.
8. In the Repeat field, enter the number of time the job is to be run. Leaving the field empty, means the job will be scheduled to run forever.
9. Click the Save button to schedule the job.

Advanced usage using jobs with args

django-rq-scheduler supports scheduling jobs with arguments, as long as the arguments do need to be calculated in run-time.

from django_rq import job
@job
def job_args_kwargs(*args, **kwargs):
    func = "test_args_kwargs({})"
    args_list = [repr(arg) for arg in args]
    kwargs_list = [k + '=' + repr(v) for (k, v) in kwargs.items()]
    return func.format(', '.join(args_list + kwargs_list))

Schedule job with custom arguments to be calculated when scheduling

1. Sign in to the Django Admin site, http://localhost:8000/admin/ and locate the Django RQ Scheduler section.

2. Click on the Add link for Scheduled Job.

3. Enter a unique name for the job in the Name field.

4. In the Callable field, enter a Python dot notation path to the method that defines the job. For the example above, that would be myapp.jobs.job_args_kwargs

5. Choose your Queue. Side Note: The queues listed are defined in the Django Settings.

6. Enter the time the job is to be executed in the Scheduled time field. Side Note: Enter the date via the browser's local timezone, the time will automatically convert UTC.

7. Click the Save button to schedule the job.

8. Add arguments to the job, pick argument type.

9. Add arguments with keys to the job, pick argument type and value.

Reporting issues or Features requests

Please report issues via GitHub Issues .