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Model A has a ForeignKey relation to Model B. Model B has a PointField. Is there a way to order Model A objects by distance from a POINT?

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up vote 4 down vote accepted

Assuming that both Model A and B are using objects = models.GeoManager(), the FK field on Model A is named b, Model B has PointField named point, and pnt is a GEOSGeometry then the following should work:

A.objects.distance(pnt, field_name='b__point').order_by('distance')
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thanks. i have yet to try this, but it looks promising. is this documented somewhere? i couldn't find it... – kliao Dec 31 '10 at 22:29
tried it and worked...thanks – kliao Jan 7 '11 at 5:12

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