Re: Fitering on manytomany field whose results are contained within another set...

Thanks :-) Should have guessed it was that easy!

On Wed, Dec 23, 2015 at 12:44 PM, Vijay Khemlani <vkhemlan@gmail.com> wrote:

You should be able to query it as a ForeignKey

Jobs.objects.filter(names__is_a_problem=True).distinct()

(distinct to prevent repeated jobs with more than one worker problem)

On Wed, Dec 23, 2015 at 9:31 AM, Jonty Needham <jontyneedham@gmail.com> wrote:

I have a model of the form:

class Jobs(models.Model):
        names  = models.ManyToManyField(Workers)

class Workers(modesl.Model):

     is_a_problem = True

And I want the set of jobs that are done by workers who are a problem.

Something like

Jobs.objects.filter(names__is_contained_in=Workers.objects.filter(is_a_problem=True))

Obviously is_contained_in is not a valid lookup, so I would like to know how to do this please.

Thanks

Jonty

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