possible bug in joining on a geo field

Hi everyone,

I'm trying to do a join on geo field. I have two models like these ones (simplified):

from django.contrib.gis.db import models

class Spot(models.Model):

    point = models.PointField(spatial_index = True, srid = 4326, geography = True)

    objects = models.GeoManager()

from django.db import models

class Item(models.Model):

    location = models.ForeignKey(Spot)

    description = models.CharField(max_length=100)

I'm trying to execute this query:

from django.contrib.gis.geos import Point

point = Point(4, 5)

Item.objects.filter(location__point__distance_lte = (point, D(km=10)))

And I'm getting:

FieldError: Join on field 'point' not permitted. Did you misspell 'distance_lte' for the lookup type?

is this a bug? should I report it in a ticket? am I doing anything wrong?

Thanks, regards

Miguel Araujo

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