Hi --
I'm trying to figure out how to do a geospatial query that references a
model field in the filter.
class Article(geomodels.Model):
point = PointField(...)
radius = IntegerField(...)
query_point = Point (...)
Articles.objects.filter(point__distance_lt=(query_point, F('radius')))
I tried using the F() object, but, not surprisingly, it did not work.
Has anyone figured out how to do this?
Perhaps there's some workaround using extra()?
Liam
Someone else had this question, elsewhere, but it went unanswered...
I have a model (let's call it A) that has a point field and a radius
field:
class A(geomodels.Model):
point = geomodels.PointField(srid=<srid>)
radius = models.PositiveIntegerField()
How do I make a query that yields all A objects for which a given
point's distance from the object's point is within the object's
radius?
My first thought was to use the F() method to reference the radius
field on the A model:
query_point = <some point object>
a_qs = A.objects.filter(point__distance_lte=(query_point,
D(mi=F('radius')))
This, of course, does not work.
Any suggestions?
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