mirror of
https://github.com/django/django.git
synced 2024-12-26 11:06:07 +00:00
32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
|
from unittest import skipUnless
|
||
|
|
|
||
|
|
from django.contrib.gis.db.models import GeometryField, Value, functions
|
||
|
|
from django.contrib.gis.geos import Point, Polygon
|
||
|
|
from django.test import TestCase, skipUnlessDBFeature
|
||
|
|
|
||
|
|
from ..utils import postgis
|
||
|
|
from .models import City
|
||
|
|
|
||
|
|
|
||
|
|
@skipUnlessDBFeature('gis_enabled')
|
||
|
|
class GeoExpressionsTests(TestCase):
|
||
|
|
fixtures = ['initial']
|
||
|
|
|
||
|
|
def test_geometry_value_annotation(self):
|
||
|
|
p = Point(1, 1, srid=4326)
|
||
|
|
point = City.objects.annotate(p=Value(p, GeometryField(srid=4326))).first().p
|
||
|
|
self.assertEqual(point, p)
|
||
|
|
|
||
|
|
@skipUnlessDBFeature('supports_transform')
|
||
|
|
def test_geometry_value_annotation_different_srid(self):
|
||
|
|
p = Point(1, 1, srid=32140)
|
||
|
|
point = City.objects.annotate(p=Value(p, GeometryField(srid=4326))).first().p
|
||
|
|
self.assertTrue(point.equals_exact(p.transform(4326, clone=True), 10 ** -5))
|
||
|
|
self.assertEqual(point.srid, 4326)
|
||
|
|
|
||
|
|
@skipUnless(postgis, 'Only postgis has geography fields.')
|
||
|
|
def test_geography_value(self):
|
||
|
|
p = Polygon(((1, 1), (1, 2), (2, 2), (2, 1), (1, 1)))
|
||
|
|
area = City.objects.annotate(a=functions.Area(Value(p, GeometryField(srid=4326, geography=True)))).first().a
|
||
|
|
self.assertAlmostEqual(area.sq_km, 12305.1, 0)
|