mirror of https://github.com/django/django.git
584 lines
25 KiB
Python
584 lines
25 KiB
Python
import tempfile
|
|
from io import StringIO
|
|
|
|
from django.contrib.gis import gdal
|
|
from django.contrib.gis.db.models import Extent, MakeLine, Union, functions
|
|
from django.contrib.gis.geos import (
|
|
GeometryCollection, GEOSGeometry, LinearRing, LineString, MultiLineString,
|
|
MultiPoint, MultiPolygon, Point, Polygon, fromstr,
|
|
)
|
|
from django.core.management import call_command
|
|
from django.db import connection
|
|
from django.test import TestCase, skipUnlessDBFeature
|
|
|
|
from ..utils import (
|
|
mysql, no_oracle, oracle, postgis, skipUnlessGISLookup, spatialite,
|
|
)
|
|
from .models import (
|
|
City, Country, Feature, MinusOneSRID, NonConcreteModel, PennsylvaniaCity,
|
|
State, Track,
|
|
)
|
|
|
|
|
|
class GeoModelTest(TestCase):
|
|
fixtures = ['initial']
|
|
|
|
def test_fixtures(self):
|
|
"Testing geographic model initialization from fixtures."
|
|
# Ensuring that data was loaded from initial data fixtures.
|
|
self.assertEqual(2, Country.objects.count())
|
|
self.assertEqual(8, City.objects.count())
|
|
self.assertEqual(2, State.objects.count())
|
|
|
|
def test_proxy(self):
|
|
"Testing Lazy-Geometry support (using the GeometryProxy)."
|
|
# Testing on a Point
|
|
pnt = Point(0, 0)
|
|
nullcity = City(name='NullCity', point=pnt)
|
|
nullcity.save()
|
|
|
|
# Making sure TypeError is thrown when trying to set with an
|
|
# incompatible type.
|
|
for bad in [5, 2.0, LineString((0, 0), (1, 1))]:
|
|
with self.assertRaisesMessage(TypeError, 'Cannot set'):
|
|
nullcity.point = bad
|
|
|
|
# Now setting with a compatible GEOS Geometry, saving, and ensuring
|
|
# the save took, notice no SRID is explicitly set.
|
|
new = Point(5, 23)
|
|
nullcity.point = new
|
|
|
|
# Ensuring that the SRID is automatically set to that of the
|
|
# field after assignment, but before saving.
|
|
self.assertEqual(4326, nullcity.point.srid)
|
|
nullcity.save()
|
|
|
|
# Ensuring the point was saved correctly after saving
|
|
self.assertEqual(new, City.objects.get(name='NullCity').point)
|
|
|
|
# Setting the X and Y of the Point
|
|
nullcity.point.x = 23
|
|
nullcity.point.y = 5
|
|
# Checking assignments pre & post-save.
|
|
self.assertNotEqual(Point(23, 5, srid=4326), City.objects.get(name='NullCity').point)
|
|
nullcity.save()
|
|
self.assertEqual(Point(23, 5, srid=4326), City.objects.get(name='NullCity').point)
|
|
nullcity.delete()
|
|
|
|
# Testing on a Polygon
|
|
shell = LinearRing((0, 0), (0, 90), (100, 90), (100, 0), (0, 0))
|
|
inner = LinearRing((40, 40), (40, 60), (60, 60), (60, 40), (40, 40))
|
|
|
|
# Creating a State object using a built Polygon
|
|
ply = Polygon(shell, inner)
|
|
nullstate = State(name='NullState', poly=ply)
|
|
self.assertEqual(4326, nullstate.poly.srid) # SRID auto-set from None
|
|
nullstate.save()
|
|
|
|
ns = State.objects.get(name='NullState')
|
|
self.assertEqual(ply, ns.poly)
|
|
|
|
# Testing the `ogr` and `srs` lazy-geometry properties.
|
|
self.assertIsInstance(ns.poly.ogr, gdal.OGRGeometry)
|
|
self.assertEqual(ns.poly.wkb, ns.poly.ogr.wkb)
|
|
self.assertIsInstance(ns.poly.srs, gdal.SpatialReference)
|
|
self.assertEqual('WGS 84', ns.poly.srs.name)
|
|
|
|
# Changing the interior ring on the poly attribute.
|
|
new_inner = LinearRing((30, 30), (30, 70), (70, 70), (70, 30), (30, 30))
|
|
ns.poly[1] = new_inner
|
|
ply[1] = new_inner
|
|
self.assertEqual(4326, ns.poly.srid)
|
|
ns.save()
|
|
self.assertEqual(ply, State.objects.get(name='NullState').poly)
|
|
ns.delete()
|
|
|
|
@skipUnlessDBFeature("supports_transform")
|
|
def test_lookup_insert_transform(self):
|
|
"Testing automatic transform for lookups and inserts."
|
|
# San Antonio in 'WGS84' (SRID 4326)
|
|
sa_4326 = 'POINT (-98.493183 29.424170)'
|
|
wgs_pnt = fromstr(sa_4326, srid=4326) # Our reference point in WGS84
|
|
# San Antonio in 'WGS 84 / Pseudo-Mercator' (SRID 3857)
|
|
other_srid_pnt = wgs_pnt.transform(3857, clone=True)
|
|
# Constructing & querying with a point from a different SRID. Oracle
|
|
# `SDO_OVERLAPBDYINTERSECT` operates differently from
|
|
# `ST_Intersects`, so contains is used instead.
|
|
if oracle:
|
|
tx = Country.objects.get(mpoly__contains=other_srid_pnt)
|
|
else:
|
|
tx = Country.objects.get(mpoly__intersects=other_srid_pnt)
|
|
self.assertEqual('Texas', tx.name)
|
|
|
|
# Creating San Antonio. Remember the Alamo.
|
|
sa = City.objects.create(name='San Antonio', point=other_srid_pnt)
|
|
|
|
# Now verifying that San Antonio was transformed correctly
|
|
sa = City.objects.get(name='San Antonio')
|
|
self.assertAlmostEqual(wgs_pnt.x, sa.point.x, 6)
|
|
self.assertAlmostEqual(wgs_pnt.y, sa.point.y, 6)
|
|
|
|
# If the GeometryField SRID is -1, then we shouldn't perform any
|
|
# transformation if the SRID of the input geometry is different.
|
|
m1 = MinusOneSRID(geom=Point(17, 23, srid=4326))
|
|
m1.save()
|
|
self.assertEqual(-1, m1.geom.srid)
|
|
|
|
def test_createnull(self):
|
|
"Testing creating a model instance and the geometry being None"
|
|
c = City()
|
|
self.assertIsNone(c.point)
|
|
|
|
def test_geometryfield(self):
|
|
"Testing the general GeometryField."
|
|
Feature(name='Point', geom=Point(1, 1)).save()
|
|
Feature(name='LineString', geom=LineString((0, 0), (1, 1), (5, 5))).save()
|
|
Feature(name='Polygon', geom=Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0)))).save()
|
|
Feature(name='GeometryCollection',
|
|
geom=GeometryCollection(Point(2, 2), LineString((0, 0), (2, 2)),
|
|
Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0))))).save()
|
|
|
|
f_1 = Feature.objects.get(name='Point')
|
|
self.assertIsInstance(f_1.geom, Point)
|
|
self.assertEqual((1.0, 1.0), f_1.geom.tuple)
|
|
f_2 = Feature.objects.get(name='LineString')
|
|
self.assertIsInstance(f_2.geom, LineString)
|
|
self.assertEqual(((0.0, 0.0), (1.0, 1.0), (5.0, 5.0)), f_2.geom.tuple)
|
|
|
|
f_3 = Feature.objects.get(name='Polygon')
|
|
self.assertIsInstance(f_3.geom, Polygon)
|
|
f_4 = Feature.objects.get(name='GeometryCollection')
|
|
self.assertIsInstance(f_4.geom, GeometryCollection)
|
|
self.assertEqual(f_3.geom, f_4.geom[2])
|
|
|
|
# TODO: fix on Oracle: ORA-22901: cannot compare nested table or VARRAY or
|
|
# LOB attributes of an object type.
|
|
@no_oracle
|
|
@skipUnlessDBFeature("supports_transform")
|
|
def test_inherited_geofields(self):
|
|
"Database functions on inherited Geometry fields."
|
|
# Creating a Pennsylvanian city.
|
|
PennsylvaniaCity.objects.create(name='Mansfield', county='Tioga', point='POINT(-77.071445 41.823881)')
|
|
|
|
# All transformation SQL will need to be performed on the
|
|
# _parent_ table.
|
|
qs = PennsylvaniaCity.objects.annotate(new_point=functions.Transform('point', srid=32128))
|
|
|
|
self.assertEqual(1, qs.count())
|
|
for pc in qs:
|
|
self.assertEqual(32128, pc.new_point.srid)
|
|
|
|
def test_raw_sql_query(self):
|
|
"Testing raw SQL query."
|
|
cities1 = City.objects.all()
|
|
# Only PostGIS would support a 'select *' query because of its recognized
|
|
# HEXEWKB format for geometry fields
|
|
as_text = 'ST_AsText(%s)' if postgis else connection.ops.select
|
|
cities2 = City.objects.raw(
|
|
'select id, name, %s from geoapp_city' % as_text % 'point'
|
|
)
|
|
self.assertEqual(len(cities1), len(list(cities2)))
|
|
self.assertIsInstance(cities2[0].point, Point)
|
|
|
|
def test_dumpdata_loaddata_cycle(self):
|
|
"""
|
|
Test a dumpdata/loaddata cycle with geographic data.
|
|
"""
|
|
out = StringIO()
|
|
original_data = list(City.objects.all().order_by('name'))
|
|
call_command('dumpdata', 'geoapp.City', stdout=out)
|
|
result = out.getvalue()
|
|
houston = City.objects.get(name='Houston')
|
|
self.assertIn('"point": "%s"' % houston.point.ewkt, result)
|
|
|
|
# Reload now dumped data
|
|
with tempfile.NamedTemporaryFile(mode='w', suffix='.json') as tmp:
|
|
tmp.write(result)
|
|
tmp.seek(0)
|
|
call_command('loaddata', tmp.name, verbosity=0)
|
|
self.assertEqual(original_data, list(City.objects.all().order_by('name')))
|
|
|
|
@skipUnlessDBFeature("supports_empty_geometries")
|
|
def test_empty_geometries(self):
|
|
geometry_classes = [
|
|
Point,
|
|
LineString,
|
|
LinearRing,
|
|
Polygon,
|
|
MultiPoint,
|
|
MultiLineString,
|
|
MultiPolygon,
|
|
GeometryCollection,
|
|
]
|
|
for klass in geometry_classes:
|
|
g = klass(srid=4326)
|
|
feature = Feature.objects.create(name='Empty %s' % klass.__name__, geom=g)
|
|
feature.refresh_from_db()
|
|
if klass is LinearRing:
|
|
# LinearRing isn't representable in WKB, so GEOSGeomtry.wkb
|
|
# uses LineString instead.
|
|
g = LineString(srid=4326)
|
|
self.assertEqual(feature.geom, g)
|
|
self.assertEqual(feature.geom.srid, g.srid)
|
|
|
|
|
|
class GeoLookupTest(TestCase):
|
|
fixtures = ['initial']
|
|
|
|
def test_disjoint_lookup(self):
|
|
"Testing the `disjoint` lookup type."
|
|
ptown = City.objects.get(name='Pueblo')
|
|
qs1 = City.objects.filter(point__disjoint=ptown.point)
|
|
self.assertEqual(7, qs1.count())
|
|
|
|
if connection.features.supports_real_shape_operations:
|
|
qs2 = State.objects.filter(poly__disjoint=ptown.point)
|
|
self.assertEqual(1, qs2.count())
|
|
self.assertEqual('Kansas', qs2[0].name)
|
|
|
|
def test_contains_contained_lookups(self):
|
|
"Testing the 'contained', 'contains', and 'bbcontains' lookup types."
|
|
# Getting Texas, yes we were a country -- once ;)
|
|
texas = Country.objects.get(name='Texas')
|
|
|
|
# Seeing what cities are in Texas, should get Houston and Dallas,
|
|
# and Oklahoma City because 'contained' only checks on the
|
|
# _bounding box_ of the Geometries.
|
|
if connection.features.supports_contained_lookup:
|
|
qs = City.objects.filter(point__contained=texas.mpoly)
|
|
self.assertEqual(3, qs.count())
|
|
cities = ['Houston', 'Dallas', 'Oklahoma City']
|
|
for c in qs:
|
|
self.assertIn(c.name, cities)
|
|
|
|
# Pulling out some cities.
|
|
houston = City.objects.get(name='Houston')
|
|
wellington = City.objects.get(name='Wellington')
|
|
pueblo = City.objects.get(name='Pueblo')
|
|
okcity = City.objects.get(name='Oklahoma City')
|
|
lawrence = City.objects.get(name='Lawrence')
|
|
|
|
# Now testing contains on the countries using the points for
|
|
# Houston and Wellington.
|
|
tx = Country.objects.get(mpoly__contains=houston.point) # Query w/GEOSGeometry
|
|
nz = Country.objects.get(mpoly__contains=wellington.point.hex) # Query w/EWKBHEX
|
|
self.assertEqual('Texas', tx.name)
|
|
self.assertEqual('New Zealand', nz.name)
|
|
|
|
# Testing `contains` on the states using the point for Lawrence.
|
|
ks = State.objects.get(poly__contains=lawrence.point)
|
|
self.assertEqual('Kansas', ks.name)
|
|
|
|
# Pueblo and Oklahoma City (even though OK City is within the bounding box of Texas)
|
|
# are not contained in Texas or New Zealand.
|
|
self.assertEqual(len(Country.objects.filter(mpoly__contains=pueblo.point)), 0) # Query w/GEOSGeometry object
|
|
self.assertEqual(len(Country.objects.filter(mpoly__contains=okcity.point.wkt)),
|
|
0 if connection.features.supports_real_shape_operations else 1) # Query w/WKT
|
|
|
|
# OK City is contained w/in bounding box of Texas.
|
|
if connection.features.supports_bbcontains_lookup:
|
|
qs = Country.objects.filter(mpoly__bbcontains=okcity.point)
|
|
self.assertEqual(1, len(qs))
|
|
self.assertEqual('Texas', qs[0].name)
|
|
|
|
@skipUnlessDBFeature("supports_crosses_lookup")
|
|
def test_crosses_lookup(self):
|
|
Track.objects.create(
|
|
name='Line1',
|
|
line=LineString([(-95, 29), (-60, 0)])
|
|
)
|
|
self.assertEqual(
|
|
Track.objects.filter(line__crosses=LineString([(-95, 0), (-60, 29)])).count(),
|
|
1
|
|
)
|
|
self.assertEqual(
|
|
Track.objects.filter(line__crosses=LineString([(-95, 30), (0, 30)])).count(),
|
|
0
|
|
)
|
|
|
|
@skipUnlessDBFeature("supports_isvalid_lookup")
|
|
def test_isvalid_lookup(self):
|
|
invalid_geom = fromstr('POLYGON((0 0, 0 1, 1 1, 1 0, 1 1, 1 0, 0 0))')
|
|
State.objects.create(name='invalid', poly=invalid_geom)
|
|
qs = State.objects.all()
|
|
if oracle or mysql:
|
|
# Kansas has adjacent vertices with distance 6.99244813842e-12
|
|
# which is smaller than the default Oracle tolerance.
|
|
# It's invalid on MySQL too.
|
|
qs = qs.exclude(name='Kansas')
|
|
self.assertEqual(State.objects.filter(name='Kansas', poly__isvalid=False).count(), 1)
|
|
self.assertEqual(qs.filter(poly__isvalid=False).count(), 1)
|
|
self.assertEqual(qs.filter(poly__isvalid=True).count(), qs.count() - 1)
|
|
|
|
@skipUnlessDBFeature("supports_left_right_lookups")
|
|
def test_left_right_lookups(self):
|
|
"Testing the 'left' and 'right' lookup types."
|
|
# Left: A << B => true if xmax(A) < xmin(B)
|
|
# Right: A >> B => true if xmin(A) > xmax(B)
|
|
# See: BOX2D_left() and BOX2D_right() in lwgeom_box2dfloat4.c in PostGIS source.
|
|
|
|
# Getting the borders for Colorado & Kansas
|
|
co_border = State.objects.get(name='Colorado').poly
|
|
ks_border = State.objects.get(name='Kansas').poly
|
|
|
|
# Note: Wellington has an 'X' value of 174, so it will not be considered
|
|
# to the left of CO.
|
|
|
|
# These cities should be strictly to the right of the CO border.
|
|
cities = ['Houston', 'Dallas', 'Oklahoma City',
|
|
'Lawrence', 'Chicago', 'Wellington']
|
|
qs = City.objects.filter(point__right=co_border)
|
|
self.assertEqual(6, len(qs))
|
|
for c in qs:
|
|
self.assertIn(c.name, cities)
|
|
|
|
# These cities should be strictly to the right of the KS border.
|
|
cities = ['Chicago', 'Wellington']
|
|
qs = City.objects.filter(point__right=ks_border)
|
|
self.assertEqual(2, len(qs))
|
|
for c in qs:
|
|
self.assertIn(c.name, cities)
|
|
|
|
# Note: Wellington has an 'X' value of 174, so it will not be considered
|
|
# to the left of CO.
|
|
vic = City.objects.get(point__left=co_border)
|
|
self.assertEqual('Victoria', vic.name)
|
|
|
|
cities = ['Pueblo', 'Victoria']
|
|
qs = City.objects.filter(point__left=ks_border)
|
|
self.assertEqual(2, len(qs))
|
|
for c in qs:
|
|
self.assertIn(c.name, cities)
|
|
|
|
@skipUnlessGISLookup("strictly_above", "strictly_below")
|
|
def test_strictly_above_below_lookups(self):
|
|
dallas = City.objects.get(name='Dallas')
|
|
self.assertQuerysetEqual(
|
|
City.objects.filter(point__strictly_above=dallas.point).order_by('name'),
|
|
['Chicago', 'Lawrence', 'Oklahoma City', 'Pueblo', 'Victoria'],
|
|
lambda b: b.name
|
|
)
|
|
self.assertQuerysetEqual(
|
|
City.objects.filter(point__strictly_below=dallas.point).order_by('name'),
|
|
['Houston', 'Wellington'],
|
|
lambda b: b.name
|
|
)
|
|
|
|
def test_equals_lookups(self):
|
|
"Testing the 'same_as' and 'equals' lookup types."
|
|
pnt = fromstr('POINT (-95.363151 29.763374)', srid=4326)
|
|
c1 = City.objects.get(point=pnt)
|
|
c2 = City.objects.get(point__same_as=pnt)
|
|
c3 = City.objects.get(point__equals=pnt)
|
|
for c in [c1, c2, c3]:
|
|
self.assertEqual('Houston', c.name)
|
|
|
|
@skipUnlessDBFeature("supports_null_geometries")
|
|
def test_null_geometries(self):
|
|
"Testing NULL geometry support, and the `isnull` lookup type."
|
|
# Creating a state with a NULL boundary.
|
|
State.objects.create(name='Puerto Rico')
|
|
|
|
# Querying for both NULL and Non-NULL values.
|
|
nullqs = State.objects.filter(poly__isnull=True)
|
|
validqs = State.objects.filter(poly__isnull=False)
|
|
|
|
# Puerto Rico should be NULL (it's a commonwealth unincorporated territory)
|
|
self.assertEqual(1, len(nullqs))
|
|
self.assertEqual('Puerto Rico', nullqs[0].name)
|
|
|
|
# The valid states should be Colorado & Kansas
|
|
self.assertEqual(2, len(validqs))
|
|
state_names = [s.name for s in validqs]
|
|
self.assertIn('Colorado', state_names)
|
|
self.assertIn('Kansas', state_names)
|
|
|
|
# Saving another commonwealth w/a NULL geometry.
|
|
nmi = State.objects.create(name='Northern Mariana Islands', poly=None)
|
|
self.assertIsNone(nmi.poly)
|
|
|
|
# Assigning a geometry and saving -- then UPDATE back to NULL.
|
|
nmi.poly = 'POLYGON((0 0,1 0,1 1,1 0,0 0))'
|
|
nmi.save()
|
|
State.objects.filter(name='Northern Mariana Islands').update(poly=None)
|
|
self.assertIsNone(State.objects.get(name='Northern Mariana Islands').poly)
|
|
|
|
@skipUnlessDBFeature('supports_null_geometries', 'supports_crosses_lookup', 'supports_relate_lookup')
|
|
def test_null_geometries_excluded_in_lookups(self):
|
|
"""NULL features are excluded in spatial lookup functions."""
|
|
null = State.objects.create(name='NULL', poly=None)
|
|
queries = [
|
|
('equals', Point(1, 1)),
|
|
('disjoint', Point(1, 1)),
|
|
('touches', Point(1, 1)),
|
|
('crosses', LineString((0, 0), (1, 1), (5, 5))),
|
|
('within', Point(1, 1)),
|
|
('overlaps', LineString((0, 0), (1, 1), (5, 5))),
|
|
('contains', LineString((0, 0), (1, 1), (5, 5))),
|
|
('intersects', LineString((0, 0), (1, 1), (5, 5))),
|
|
('relate', (Point(1, 1), 'T*T***FF*')),
|
|
('same_as', Point(1, 1)),
|
|
('exact', Point(1, 1)),
|
|
]
|
|
for lookup, geom in queries:
|
|
with self.subTest(lookup=lookup):
|
|
self.assertNotIn(null, State.objects.filter(**{'poly__%s' % lookup: geom}))
|
|
|
|
@skipUnlessDBFeature("supports_relate_lookup")
|
|
def test_relate_lookup(self):
|
|
"Testing the 'relate' lookup type."
|
|
# To make things more interesting, we will have our Texas reference point in
|
|
# different SRIDs.
|
|
pnt1 = fromstr('POINT (649287.0363174 4177429.4494686)', srid=2847)
|
|
pnt2 = fromstr('POINT(-98.4919715741052 29.4333344025053)', srid=4326)
|
|
|
|
# Not passing in a geometry as first param raises a TypeError when
|
|
# initializing the QuerySet.
|
|
with self.assertRaises(ValueError):
|
|
Country.objects.filter(mpoly__relate=(23, 'foo'))
|
|
|
|
# Making sure the right exception is raised for the given
|
|
# bad arguments.
|
|
for bad_args, e in [((pnt1, 0), ValueError), ((pnt2, 'T*T***FF*', 0), ValueError)]:
|
|
qs = Country.objects.filter(mpoly__relate=bad_args)
|
|
with self.assertRaises(e):
|
|
qs.count()
|
|
|
|
# Relate works differently for the different backends.
|
|
if postgis or spatialite:
|
|
contains_mask = 'T*T***FF*'
|
|
within_mask = 'T*F**F***'
|
|
intersects_mask = 'T********'
|
|
elif oracle:
|
|
contains_mask = 'contains'
|
|
within_mask = 'inside'
|
|
# TODO: This is not quite the same as the PostGIS mask above
|
|
intersects_mask = 'overlapbdyintersect'
|
|
|
|
# Testing contains relation mask.
|
|
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, contains_mask)).name)
|
|
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, contains_mask)).name)
|
|
|
|
# Testing within relation mask.
|
|
ks = State.objects.get(name='Kansas')
|
|
self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, within_mask)).name)
|
|
|
|
# Testing intersection relation mask.
|
|
if not oracle:
|
|
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, intersects_mask)).name)
|
|
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, intersects_mask)).name)
|
|
self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, intersects_mask)).name)
|
|
|
|
# With a complex geometry expression
|
|
mask = 'anyinteract' if oracle else within_mask
|
|
self.assertFalse(City.objects.exclude(point__relate=(functions.Union('point', 'point'), mask)))
|
|
|
|
def test_gis_lookups_with_complex_expressions(self):
|
|
multiple_arg_lookups = {'dwithin', 'relate'} # These lookups are tested elsewhere.
|
|
lookups = connection.ops.gis_operators.keys() - multiple_arg_lookups
|
|
self.assertTrue(lookups, 'No lookups found')
|
|
for lookup in lookups:
|
|
with self.subTest(lookup):
|
|
City.objects.filter(**{'point__' + lookup: functions.Union('point', 'point')}).exists()
|
|
|
|
|
|
class GeoQuerySetTest(TestCase):
|
|
# TODO: GeoQuerySet is removed, organize these test better.
|
|
fixtures = ['initial']
|
|
|
|
@skipUnlessDBFeature("supports_extent_aggr")
|
|
def test_extent(self):
|
|
"""
|
|
Testing the `Extent` aggregate.
|
|
"""
|
|
# Reference query:
|
|
# `SELECT ST_extent(point) FROM geoapp_city WHERE (name='Houston' or name='Dallas');`
|
|
# => BOX(-96.8016128540039 29.7633724212646,-95.3631439208984 32.7820587158203)
|
|
expected = (-96.8016128540039, 29.7633724212646, -95.3631439208984, 32.782058715820)
|
|
|
|
qs = City.objects.filter(name__in=('Houston', 'Dallas'))
|
|
extent = qs.aggregate(Extent('point'))['point__extent']
|
|
for val, exp in zip(extent, expected):
|
|
self.assertAlmostEqual(exp, val, 4)
|
|
self.assertIsNone(City.objects.filter(name=('Smalltown')).aggregate(Extent('point'))['point__extent'])
|
|
|
|
@skipUnlessDBFeature("supports_extent_aggr")
|
|
def test_extent_with_limit(self):
|
|
"""
|
|
Testing if extent supports limit.
|
|
"""
|
|
extent1 = City.objects.all().aggregate(Extent('point'))['point__extent']
|
|
extent2 = City.objects.all()[:3].aggregate(Extent('point'))['point__extent']
|
|
self.assertNotEqual(extent1, extent2)
|
|
|
|
def test_make_line(self):
|
|
"""
|
|
Testing the `MakeLine` aggregate.
|
|
"""
|
|
if not connection.features.supports_make_line_aggr:
|
|
with self.assertRaises(NotImplementedError):
|
|
City.objects.all().aggregate(MakeLine('point'))
|
|
return
|
|
|
|
# MakeLine on an inappropriate field returns simply None
|
|
self.assertIsNone(State.objects.aggregate(MakeLine('poly'))['poly__makeline'])
|
|
# Reference query:
|
|
# SELECT AsText(ST_MakeLine(geoapp_city.point)) FROM geoapp_city;
|
|
ref_line = GEOSGeometry(
|
|
'LINESTRING(-95.363151 29.763374,-96.801611 32.782057,'
|
|
'-97.521157 34.464642,174.783117 -41.315268,-104.609252 38.255001,'
|
|
'-95.23506 38.971823,-87.650175 41.850385,-123.305196 48.462611)',
|
|
srid=4326
|
|
)
|
|
# We check for equality with a tolerance of 10e-5 which is a lower bound
|
|
# of the precisions of ref_line coordinates
|
|
line = City.objects.aggregate(MakeLine('point'))['point__makeline']
|
|
self.assertTrue(
|
|
ref_line.equals_exact(line, tolerance=10e-5),
|
|
"%s != %s" % (ref_line, line)
|
|
)
|
|
|
|
@skipUnlessDBFeature('supports_union_aggr')
|
|
def test_unionagg(self):
|
|
"""
|
|
Testing the `Union` aggregate.
|
|
"""
|
|
tx = Country.objects.get(name='Texas').mpoly
|
|
# Houston, Dallas -- Ordering may differ depending on backend or GEOS version.
|
|
union = GEOSGeometry('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374)')
|
|
qs = City.objects.filter(point__within=tx)
|
|
with self.assertRaises(ValueError):
|
|
qs.aggregate(Union('name'))
|
|
# Using `field_name` keyword argument in one query and specifying an
|
|
# order in the other (which should not be used because this is
|
|
# an aggregate method on a spatial column)
|
|
u1 = qs.aggregate(Union('point'))['point__union']
|
|
u2 = qs.order_by('name').aggregate(Union('point'))['point__union']
|
|
self.assertTrue(union.equals(u1))
|
|
self.assertTrue(union.equals(u2))
|
|
qs = City.objects.filter(name='NotACity')
|
|
self.assertIsNone(qs.aggregate(Union('point'))['point__union'])
|
|
|
|
def test_within_subquery(self):
|
|
"""
|
|
Using a queryset inside a geo lookup is working (using a subquery)
|
|
(#14483).
|
|
"""
|
|
tex_cities = City.objects.filter(
|
|
point__within=Country.objects.filter(name='Texas').values('mpoly')).order_by('name')
|
|
expected = ['Dallas', 'Houston']
|
|
if not connection.features.supports_real_shape_operations:
|
|
expected.append('Oklahoma City')
|
|
self.assertEqual(
|
|
list(tex_cities.values_list('name', flat=True)),
|
|
expected
|
|
)
|
|
|
|
def test_non_concrete_field(self):
|
|
NonConcreteModel.objects.create(point=Point(0, 0), name='name')
|
|
list(NonConcreteModel.objects.all())
|
|
|
|
def test_values_srid(self):
|
|
for c, v in zip(City.objects.all(), City.objects.values()):
|
|
self.assertEqual(c.point.srid, v['point'].srid)
|