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Home/ Questions/Q 506371
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Editorial Team
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Editorial Team
Asked: May 13, 20262026-05-13T06:41:39+00:00 2026-05-13T06:41:39+00:00

Suppose my model looks like this: class Farm(models.Model): name = … class Tree(models.Model): farm

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Suppose my model looks like this:

class Farm(models.Model):
   name = ...

class Tree(models.Model):
   farm = models.ForeignKey(Farm)

…and I get a QuerySet of Tree objects. How do I determine what farms are represented in that QuerySet?

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  1. Editorial Team
    Editorial Team
    2026-05-13T06:41:40+00:00Added an answer on May 13, 2026 at 6:41 am

    http://docs.djangoproject.com/en/dev/ref/models/querysets/#in

    Farm.objects.filter(tree__in=TreeQuerySet)
    
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