def _geom_attribute(self, func, tolerance=0.05, **kwargs):
        s = {'select_field' : GeomField(),}
        if SpatialBackend.oracle:
            s['procedure_fmt'] = '%(geo_col)s,%(tolerance)s'
            s['procedure_args'] = {'tolerance' : tolerance}
        return self._spatial_attribute(func, s, **kwargs)
DRY routine for setting up a GeoQuerySet method that attaches a
dataset/ETHPy150Open dcramer/django-compositepks/django/contrib/gis/db/models/query.py/GeoQuerySet._geom_attribute