Latest version with pip install django-carrot

[tehfink]

Following the directions here yesterday:
http://www.django-carrot.com/en/latest/quick-start.html

After installing with pip install django-carrot in a virtualenv with Django 2.1.1, I spent a few hours debugging why this error constantly popped up when creating a new ScheduledTask with the task_name kwarg:
django.db.utils.IntegrityError: UNIQUE constraint failed: carrot_scheduledtask.task_name

Apparently the most recent released version installed via pip is 6a5fbb3, which is behind the fix in 5bdfc14. Checking carrot.__version__ returns '0'.
Will there be a new release soon, or what's the recommended version of carrot to install?

[chris104957]

Is this on a clean install or are you upgrading from a previous version of carrot?

[chris104957]

The root cause here is that you are trying to create a ScheduledTask object with a non-unique task_name value. By default, when you create a new ScheduledTask object using the carrot.utilities.create_scheduled_task function, if you do not provide the task_name value, this will automatically default to the name of the task function you are trying to schedule (e.g. my_app.my_tasks.my_task). So, if you already have a ScheduledTask object for one function, and you try to create another one for the same function, without specifying the task_name parameter, this will cause this error.

Solution: Use the task_name parameter when using carrot.utilities.create_scheduled_task:

create_scheduled_task('my_app.my_tasks.task`, {'seconds': 5}, task_name='something unique', **task_kwargs)

I'm going to add validation to that function for version 1.3 so that its more clear in future what the issue is.

The version number thing is a weird issue that seems to have arisen from CI, this will also be fixed in 1.3

[chris104957]

Fixed with #97

[tehfink]

Thanks for the reply, and a great project!

Is this on a clean install or are you upgrading from a previous version of carrot?

A fresh install & in a new virtualenv.

Solution: Use the task_name parameter when using carrot.utilities.create_scheduled_task…

Thanks, I had seen this in the docs and was looking forward to trying it out! The problem was that the version of carrot installed via pip install django-carrot didn't include the task_name kwarg from 5bdfc14. Anyway, it has been 'fixed' by telling pip which changeset to install, e.g.:

pip install git+git://github.com/chris104957/django-carrot.git@ded8daa8edf66ffe06829ec064df15aa676c5567#egg=django-carrot