I have two models in Django linked together by ManyToMany relation like this:

class Person(models.Model):
    name = models.CharField(max_length=128)

class Group(models.Model):
    name = models.CharField(max_length=128)
    members = models.ManyToManyField(Person)

I need to get the main person in the group which is the first person in the group. How can I get the first person?

Here's how I'm adding members:

grp = Group.objects.create(name="Group 1")
grp.save()
prs = Person.objects.create(name="Tom")
grp.members.add(prs) #This is the main person of the group.
prs = Person.objects.create(name="Dick")
grp.members.add(prs)
prs = Person.objects.create(name="Harry")
grp.members.add(prs)

I don't think I need any additional columns as the id of the table group_members is a running sequence right.

If I try to fetch the main member of the group through Group.objects.get(id=1).members[0] then Django says that the manager is not indexable.

If I try this Group.objects.get(id=1).members.all().order_by('id')[0], I get the member with the lowest id in the Person table.

How can I solve this?

Thanks

python django django-orm
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