Refs #7742 -- Removed oldforms bits from `contrib.gis` app.

from django.contrib.gis import forms

# Getting the SpatialBackend container and the geographic quoting method.

from django.contrib.gis.db.backend import SpatialBackend, gqn

# GeometryProxy, GEOS, Distance, and oldforms imports.

# GeometryProxy, GEOS, and Distance imports.

from django.contrib.gis.db.models.proxy import GeometryProxy

from django.contrib.gis.measure import Distance

from django.contrib.gis.oldforms import WKTField

# The `get_srid_info` function gets SRID information from the spatial

# reference system table w/o using the ORM.

from django.contrib.gis.models import get_srid_info

        else:

            return SpatialBackend.Adaptor(self.get_geometry(value))

    def get_manipulator_field_objs(self):

        "Using the WKTField (oldforms) to be our manipulator."

        return [WKTField]

# The OpenGIS Geometry Type Fields

class PointField(GeometryField):

    _geom = 'POINT'

from django.core.validators import ValidationError

from django.oldforms import LargeTextField

from django.contrib.gis.geos import GEOSException, GEOSGeometry

class WKTField(LargeTextField):

    "An oldforms LargeTextField for editing WKT text in the admin."

    def __init__(self, *args, **kwargs):

        super(WKTField, self).__init__(*args, **kwargs)

        # Overridding the validator list.

        self.validator_list = [self.isValidGeom]

    def render(self, data):

        # Returns the WKT value for the geometry field.  When no such data

        #  is present, return None to LargeTextField's render.

        if isinstance(data, GEOSGeometry):

            return super(WKTField, self).render(data.wkt)

        elif isinstance(data, basestring):

            return super(WKTField, self).render(data)

        else:

            return super(WKTField, self).render(None)

    def isValidGeom(self, field_data, all_data):

        try:

            g = GEOSGeometry(field_data)

        except GEOSException:

            raise ValidationError('Valid WKT or HEXEWKB is required for Geometry Fields.')