Question

I’m trying to do something like this:

jobQuery = getJobQuery()
job = jobType.objects().get(jobQuery)

How do I implement getJobQuery() to return an expression equivalent to:

jobType.objects().get(in_progress=False)

Answer 1

A Q object is 100% what you’re looking for.

def get_job_query():
    return Q(in_progress=False)

alternatively, though, rely on the fact that querysets are lazy.

def get_job_query():
    return JobType.objects.filter(in_progress=False)
job = get_job_query().get()

for extra style points, you can attach that to a custom Manager for JobType.