/
test_provider_shapefile.py
1103 lines (922 loc) · 53.2 KB
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test_provider_shapefile.py
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# -*- coding: utf-8 -*-
"""QGIS Unit tests for the OGR/Shapefile provider.
.. note:: This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
"""
__author__ = 'Matthias Kuhn'
__date__ = '2015-04-23'
__copyright__ = 'Copyright 2015, The QGIS Project'
import os
import re
import tempfile
import shutil
import glob
import osgeo.gdal
import osgeo.ogr
import sys
from osgeo import gdal
from qgis.core import (
QgsApplication,
QgsDataProvider,
QgsSettings,
QgsFeature,
QgsField,
QgsGeometry,
QgsVectorLayer,
QgsFeatureRequest,
QgsProviderRegistry,
QgsVectorDataProvider,
QgsWkbTypes,
QgsVectorLayerExporter,
)
from qgis.PyQt.QtCore import QVariant
from qgis.testing import start_app, unittest
from utilities import unitTestDataPath
from providertestbase import ProviderTestCase
start_app()
TEST_DATA_DIR = unitTestDataPath()
def GDAL_COMPUTE_VERSION(maj, min, rev):
return ((maj) * 1000000 + (min) * 10000 + (rev) * 100)
class ErrorReceiver():
def __init__(self):
self.msg = None
def receiveError(self, msg):
self.msg = msg
class TestPyQgsShapefileProvider(unittest.TestCase, ProviderTestCase):
@classmethod
def setUpClass(cls):
"""Run before all tests"""
# Create test layer
cls.basetestpath = tempfile.mkdtemp()
cls.repackfilepath = tempfile.mkdtemp()
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), cls.basetestpath)
shutil.copy(os.path.join(srcpath, file), cls.repackfilepath)
for file in glob.glob(os.path.join(srcpath, 'shapefile_poly.*')):
shutil.copy(os.path.join(srcpath, file), cls.basetestpath)
cls.basetestfile = os.path.join(cls.basetestpath, 'shapefile.shp')
cls.repackfile = os.path.join(cls.repackfilepath, 'shapefile.shp')
cls.basetestpolyfile = os.path.join(cls.basetestpath, 'shapefile_poly.shp')
cls.vl = QgsVectorLayer('{}|layerid=0'.format(cls.basetestfile), 'test', 'ogr')
assert(cls.vl.isValid())
cls.source = cls.vl.dataProvider()
cls.vl_poly = QgsVectorLayer('{}|layerid=0'.format(cls.basetestpolyfile), 'test', 'ogr')
assert (cls.vl_poly.isValid())
cls.poly_provider = cls.vl_poly.dataProvider()
cls.dirs_to_cleanup = [cls.basetestpath, cls.repackfilepath]
@classmethod
def tearDownClass(cls):
"""Run after all tests"""
del(cls.vl)
del(cls.vl_poly)
for dirname in cls.dirs_to_cleanup:
shutil.rmtree(dirname, True)
def treat_time_as_string(self):
return True
def treat_datetime_as_string(self):
return True
def getSource(self):
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
return vl
def getEditableLayer(self):
return self.getSource()
def enableCompiler(self):
QgsSettings().setValue('/qgis/compileExpressions', True)
return True
def disableCompiler(self):
QgsSettings().setValue('/qgis/compileExpressions', False)
def uncompiledFilters(self):
filters = set(['name ILIKE \'QGIS\'',
'"name" NOT LIKE \'Ap%\'',
'"name" NOT ILIKE \'QGIS\'',
'"name" NOT ILIKE \'pEAR\'',
'name <> \'Apple\'',
'"name" <> \'apple\'',
'(name = \'Apple\') is not null',
'name ILIKE \'aPple\'',
'name ILIKE \'%pp%\'',
'cnt = 1100 % 1000',
'"name" || \' \' || "name" = \'Orange Orange\'',
'"name" || \' \' || "cnt" = \'Orange 100\'',
'\'x\' || "name" IS NOT NULL',
'\'x\' || "name" IS NULL',
'cnt = 10 ^ 2',
'"name" ~ \'[OP]ra[gne]+\'',
'false and NULL',
'true and NULL',
'NULL and false',
'NULL and true',
'NULL and NULL',
'false or NULL',
'true or NULL',
'NULL or false',
'NULL or true',
'NULL or NULL',
'not name = \'Apple\'',
'not name = \'Apple\' or name = \'Apple\'',
'not name = \'Apple\' or not name = \'Apple\'',
'not name = \'Apple\' and pk = 4',
'not name = \'Apple\' and not pk = 4',
'num_char IN (2, 4, 5)',
'-cnt > 0',
'-cnt < 0',
'-cnt - 1 = -101',
'-(-cnt) = 100',
'-(cnt) = -(100)',
'sqrt(pk) >= 2',
'radians(cnt) < 2',
'degrees(pk) <= 200',
'abs(cnt) <= 200',
'cos(pk) < 0',
'sin(pk) < 0',
'tan(pk) < 0',
'acos(-1) < pk',
'asin(1) < pk',
'atan(3.14) < pk',
'atan2(3.14, pk) < 1',
'exp(pk) < 10',
'ln(pk) <= 1',
'log(3, pk) <= 1',
'log10(pk) < 0.5',
'round(3.14) <= pk',
'round(0.314,1) * 10 = pk',
'floor(3.14) <= pk',
'ceil(3.14) <= pk',
'pk < pi()',
'round(cnt / 66.67) <= 2',
'floor(cnt / 66.67) <= 2',
'ceil(cnt / 66.67) <= 2',
'pk < pi() / 2',
'pk = char(51)',
'pk = coalesce(NULL,3,4)',
'lower(name) = \'apple\'',
'upper(name) = \'APPLE\'',
'name = trim(\' Apple \')',
'x($geometry) < -70',
'y($geometry) > 70',
'xmin($geometry) < -70',
'ymin($geometry) > 70',
'xmax($geometry) < -70',
'ymax($geometry) > 70',
'disjoint($geometry,geom_from_wkt( \'Polygon ((-72.2 66.1, -65.2 66.1, -65.2 72.0, -72.2 72.0, -72.2 66.1))\'))',
'intersects($geometry,geom_from_wkt( \'Polygon ((-72.2 66.1, -65.2 66.1, -65.2 72.0, -72.2 72.0, -72.2 66.1))\'))',
'contains(geom_from_wkt( \'Polygon ((-72.2 66.1, -65.2 66.1, -65.2 72.0, -72.2 72.0, -72.2 66.1))\'),$geometry)',
'distance($geometry,geom_from_wkt( \'Point (-70 70)\')) > 7',
'intersects($geometry,geom_from_gml( \'<gml:Polygon srsName="EPSG:4326"><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>-72.2,66.1 -65.2,66.1 -65.2,72.0 -72.2,72.0 -72.2,66.1</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon>\'))',
'x($geometry) < -70',
'y($geometry) > 79',
'xmin($geometry) < -70',
'ymin($geometry) < 76',
'xmax($geometry) > -68',
'ymax($geometry) > 80',
'area($geometry) > 10',
'perimeter($geometry) < 12',
'relate($geometry,geom_from_wkt( \'Polygon ((-68.2 82.1, -66.95 82.1, -66.95 79.05, -68.2 79.05, -68.2 82.1))\')) = \'FF2FF1212\'',
'relate($geometry,geom_from_wkt( \'Polygon ((-68.2 82.1, -66.95 82.1, -66.95 79.05, -68.2 79.05, -68.2 82.1))\'), \'****F****\')',
'crosses($geometry,geom_from_wkt( \'Linestring (-68.2 82.1, -66.95 82.1, -66.95 79.05)\'))',
'overlaps($geometry,geom_from_wkt( \'Polygon ((-68.2 82.1, -66.95 82.1, -66.95 79.05, -68.2 79.05, -68.2 82.1))\'))',
'within($geometry,geom_from_wkt( \'Polygon ((-75.1 76.1, -75.1 81.6, -68.8 81.6, -68.8 76.1, -75.1 76.1))\'))',
'overlaps(translate($geometry,-1,-1),geom_from_wkt( \'Polygon ((-75.1 76.1, -75.1 81.6, -68.8 81.6, -68.8 76.1, -75.1 76.1))\'))',
'overlaps(buffer($geometry,1),geom_from_wkt( \'Polygon ((-75.1 76.1, -75.1 81.6, -68.8 81.6, -68.8 76.1, -75.1 76.1))\'))',
'intersects(centroid($geometry),geom_from_wkt( \'Polygon ((-74.4 78.2, -74.4 79.1, -66.8 79.1, -66.8 78.2, -74.4 78.2))\'))',
'intersects(point_on_surface($geometry),geom_from_wkt( \'Polygon ((-74.4 78.2, -74.4 79.1, -66.8 79.1, -66.8 78.2, -74.4 78.2))\'))',
'"dt" <= format_date(make_datetime(2020, 5, 4, 12, 13, 14), \'yyyy-MM-dd hh:mm:ss\')',
'"dt" < format_date(make_date(2020, 5, 4), \'yyyy-MM-dd hh:mm:ss\')',
'"dt" = format_date(to_datetime(\'000www14ww13ww12www4ww5ww2020\',\'zzzwwwsswwmmwwhhwwwdwwMwwyyyy\'),\'yyyy-MM-dd hh:mm:ss\')',
'"date" = to_date(\'www4ww5ww2020\',\'wwwdwwMwwyyyy\')',
'to_time("time") >= make_time(12, 14, 14)',
'to_time("time") = to_time(\'000www14ww13ww12www\',\'zzzwwwsswwmmwwhhwww\')',
'to_datetime("dt", \'yyyy-MM-dd hh:mm:ss\') + make_interval(days:=1) <= make_datetime(2020, 5, 4, 12, 13, 14)',
'to_datetime("dt", \'yyyy-MM-dd hh:mm:ss\') + make_interval(days:=0.01) <= make_datetime(2020, 5, 4, 12, 13, 14)'
])
if int(osgeo.gdal.VersionInfo()[:1]) < 2:
filters.insert('not null')
return filters
def partiallyCompiledFilters(self):
return set(['name = \'Apple\'',
'name = \'apple\'',
'name LIKE \'Apple\'',
'name LIKE \'aPple\'',
'name LIKE \'Ap_le\'',
'name LIKE \'Ap\\_le\'',
'"name"="name2"'])
def testRepack(self):
vl = QgsVectorLayer('{}|layerid=0'.format(self.repackfile), 'test', 'ogr')
ids = [f.id() for f in vl.getFeatures(QgsFeatureRequest().setFilterExpression('pk=1'))]
vl.selectByIds(ids)
self.assertEqual(vl.selectedFeatureIds(), ids)
self.assertEqual(vl.featureCount(), 5)
self.assertTrue(vl.startEditing())
self.assertTrue(vl.deleteFeature(3))
self.assertTrue(vl.commitChanges())
self.assertTrue(vl.selectedFeatureCount() == 0 or vl.selectedFeatures()[0]['pk'] == 1)
def testUpdateMode(self):
""" Test that on-the-fly re-opening in update/read-only mode works """
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
caps = vl.dataProvider().capabilities()
self.assertTrue(caps & QgsVectorDataProvider.AddFeatures)
self.assertTrue(caps & QgsVectorDataProvider.DeleteFeatures)
self.assertTrue(caps & QgsVectorDataProvider.ChangeAttributeValues)
self.assertTrue(caps & QgsVectorDataProvider.AddAttributes)
self.assertTrue(caps & QgsVectorDataProvider.DeleteAttributes)
self.assertTrue(caps & QgsVectorDataProvider.CreateSpatialIndex)
self.assertTrue(caps & QgsVectorDataProvider.SelectAtId)
self.assertTrue(caps & QgsVectorDataProvider.ChangeGeometries)
# self.assertTrue(caps & QgsVectorDataProvider.ChangeFeatures)
# We should be really opened in read-only mode even if write capabilities are declared
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-only")
# Unbalanced call to leaveUpdateMode()
self.assertFalse(vl.dataProvider().leaveUpdateMode())
# Test that startEditing() / commitChanges() plays with enterUpdateMode() / leaveUpdateMode()
self.assertTrue(vl.startEditing())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
self.assertTrue(vl.dataProvider().isValid())
self.assertTrue(vl.commitChanges())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-only")
self.assertTrue(vl.dataProvider().isValid())
# Manual enterUpdateMode() / leaveUpdateMode() with 2 depths
self.assertTrue(vl.dataProvider().enterUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
caps = vl.dataProvider().capabilities()
self.assertTrue(caps & QgsVectorDataProvider.AddFeatures)
f = QgsFeature()
f.setAttributes([200])
f.setGeometry(QgsGeometry.fromWkt('Point (2 49)'))
(ret, feature_list) = vl.dataProvider().addFeatures([f])
self.assertTrue(ret)
fid = feature_list[0].id()
features = [f_iter for f_iter in vl.getFeatures(QgsFeatureRequest().setFilterFid(fid))]
values = [f_iter['pk'] for f_iter in features]
self.assertEqual(values, [200])
got_geom = [f_iter.geometry() for f_iter in features][0].constGet()
self.assertEqual((got_geom.x(), got_geom.y()), (2.0, 49.0))
self.assertTrue(vl.dataProvider().changeGeometryValues({fid: QgsGeometry.fromWkt('Point (3 50)')}))
self.assertTrue(vl.dataProvider().changeAttributeValues({fid: {0: 100}}))
features = [f_iter for f_iter in vl.getFeatures(QgsFeatureRequest().setFilterFid(fid))]
values = [f_iter['pk'] for f_iter in features]
got_geom = [f_iter.geometry() for f_iter in features][0].constGet()
self.assertEqual((got_geom.x(), got_geom.y()), (3.0, 50.0))
self.assertTrue(vl.dataProvider().deleteFeatures([fid]))
# Check that it has really disappeared
osgeo.gdal.PushErrorHandler('CPLQuietErrorHandler')
features = [f_iter for f_iter in vl.getFeatures(QgsFeatureRequest().setFilterFid(fid))]
osgeo.gdal.PopErrorHandler()
self.assertEqual(features, [])
self.assertTrue(vl.dataProvider().addAttributes([QgsField("new_field", QVariant.Int, "integer")]))
self.assertTrue(vl.dataProvider().deleteAttributes([len(vl.dataProvider().fields()) - 1]))
self.assertTrue(vl.startEditing())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
self.assertTrue(vl.commitChanges())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
self.assertTrue(vl.dataProvider().enterUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
self.assertTrue(vl.dataProvider().leaveUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
self.assertTrue(vl.dataProvider().leaveUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-only")
# Test that update mode will be implicitly enabled if doing an action
# that requires update mode
(ret, _) = vl.dataProvider().addFeatures([QgsFeature()])
self.assertTrue(ret)
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
def testUpdateModeFailedReopening(self):
''' Test that methods on provider don't crash after a failed reopening '''
# Windows doesn't like removing files opened by OGR, whatever
# their open mode, so that makes it hard to test
if sys.platform == 'win32':
return
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
os.unlink(datasource)
self.assertFalse(vl.dataProvider().enterUpdateMode())
self.assertFalse(vl.dataProvider().enterUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "invalid")
self.assertFalse(vl.dataProvider().isValid())
self.assertEqual(len([f for f in vl.dataProvider().getFeatures()]), 0)
self.assertEqual(len(vl.dataProvider().subLayers()), 0)
self.assertFalse(vl.dataProvider().setSubsetString('TRUE'))
(ret, _) = vl.dataProvider().addFeatures([QgsFeature()])
self.assertFalse(ret)
self.assertFalse(vl.dataProvider().deleteFeatures([1]))
self.assertFalse(vl.dataProvider().addAttributes([QgsField()]))
self.assertFalse(vl.dataProvider().deleteAttributes([1]))
self.assertFalse(vl.dataProvider().changeGeometryValues({0: QgsGeometry.fromWkt('Point (3 50)')}))
self.assertFalse(vl.dataProvider().changeAttributeValues({0: {0: 0}}))
self.assertFalse(vl.dataProvider().createSpatialIndex())
self.assertFalse(vl.dataProvider().createAttributeIndex(0))
def testreloadData(self):
''' Test reloadData() '''
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl1 = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
vl2 = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl1.startEditing())
self.assertTrue(vl1.deleteAttributes([1]))
self.assertTrue(vl1.commitChanges())
self.assertEqual(len(vl1.fields()) + 1, len(vl2.fields()))
# Reload
vl2.reload()
# And now check that fields are up-to-date
self.assertEqual(len(vl1.fields()), len(vl2.fields()))
def testRenameAttributes(self):
''' Test renameAttributes() '''
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
provider = vl.dataProvider()
# bad rename
self.assertFalse(provider.renameAttributes({-1: 'not_a_field'}))
self.assertFalse(provider.renameAttributes({100: 'not_a_field'}))
# already exists
self.assertFalse(provider.renameAttributes({2: 'cnt'}))
# rename one field
self.assertTrue(provider.renameAttributes({2: 'newname'}))
self.assertEqual(provider.fields().at(2).name(), 'newname')
vl.updateFields()
fet = next(vl.getFeatures())
self.assertEqual(fet.fields()[2].name(), 'newname')
# rename two fields
self.assertTrue(provider.renameAttributes({2: 'newname2', 3: 'another'}))
self.assertEqual(provider.fields().at(2).name(), 'newname2')
self.assertEqual(provider.fields().at(3).name(), 'another')
vl.updateFields()
fet = next(vl.getFeatures())
self.assertEqual(fet.fields()[2].name(), 'newname2')
self.assertEqual(fet.fields()[3].name(), 'another')
# close file and reopen, then recheck to confirm that changes were saved to file
del vl
vl = None
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
provider = vl.dataProvider()
self.assertEqual(provider.fields().at(2).name(), 'newname2')
self.assertEqual(provider.fields().at(3).name(), 'another')
fet = next(vl.getFeatures())
self.assertEqual(fet.fields()[2].name(), 'newname2')
self.assertEqual(fet.fields()[3].name(), 'another')
def testDeleteGeometry(self):
''' Test changeGeometryValues() with a null geometry '''
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.dataProvider().changeGeometryValues({0: QgsGeometry()}))
vl = None
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
fet = next(vl.getFeatures())
self.assertFalse(fet.hasGeometry())
def testDeleteShapes(self):
''' Test fix for #11007 '''
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
feature_count = vl.featureCount()
# Start an iterator that will open a new connection
iterator = vl.getFeatures()
next(iterator)
# Delete a feature
self.assertTrue(vl.startEditing())
self.assertTrue(vl.deleteFeature(1))
self.assertTrue(vl.commitChanges())
# Test the content of the shapefile while it is still opened
ds = osgeo.ogr.Open(datasource)
# Test repacking has been done
self.assertTrue(ds.GetLayer(0).GetFeatureCount() == feature_count - 1)
ds = None
# Delete another feature while in update mode
self.assertTrue(2 == 2)
vl.dataProvider().enterUpdateMode()
vl.dataProvider().deleteFeatures([0])
# Test that repacking has not been done (since in update mode)
ds = osgeo.ogr.Open(datasource)
self.assertTrue(ds.GetLayer(0).GetFeatureCount() == feature_count - 1)
ds = None
# Test that repacking was performed when leaving updateMode
vl.dataProvider().leaveUpdateMode()
ds = osgeo.ogr.Open(datasource)
self.assertTrue(ds.GetLayer(0).GetFeatureCount() == feature_count - 2)
ds = None
vl = None
def testDontRepackOnReload(self):
''' Test fix for #18421 '''
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
feature_count = vl.featureCount()
# Start an iterator that will open a new connection
iterator = vl.getFeatures()
next(iterator)
# Delete another feature while in update mode
vl.dataProvider().enterUpdateMode()
vl.dataProvider().reloadData()
vl.dataProvider().deleteFeatures([0])
# Test that repacking has not been done (since in update mode)
ds = osgeo.ogr.Open(datasource)
self.assertTrue(ds.GetLayer(0).GetFeatureCount() == feature_count)
ds = None
vl = None
def testRepackUnderFileLocks(self):
''' Test fix for #15570 and #15393 '''
# This requires a GDAL fix done per https://trac.osgeo.org/gdal/ticket/6672
# but on non-Windows version the test would succeed
if int(osgeo.gdal.VersionInfo('VERSION_NUM')) < GDAL_COMPUTE_VERSION(2, 1, 2):
return
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
feature_count = vl.featureCount()
# Keep a file descriptor opened on the .dbf, .shp and .shx
f_shp = open(os.path.join(tmpdir, 'shapefile.shp'), 'rb')
f_shx = open(os.path.join(tmpdir, 'shapefile.shx'), 'rb')
f_dbf = open(os.path.join(tmpdir, 'shapefile.dbf'), 'rb')
# Delete a feature
self.assertTrue(vl.startEditing())
self.assertTrue(vl.deleteFeature(1))
# Commit changes and check no error is emitted
cbk = ErrorReceiver()
vl.dataProvider().raiseError.connect(cbk.receiveError)
self.assertTrue(vl.commitChanges())
self.assertIsNone(cbk.msg)
vl = None
del f_shp
del f_shx
del f_dbf
# Test repacking has been done
ds = osgeo.ogr.Open(datasource)
self.assertTrue(ds.GetLayer(0).GetFeatureCount(), feature_count - 1)
ds = None
def testRepackAtFirstSave(self):
''' Test fix for #15407 '''
# This requires a GDAL fix done per https://trac.osgeo.org/gdal/ticket/6672
# but on non-Windows version the test would succeed
if int(osgeo.gdal.VersionInfo('VERSION_NUM')) < GDAL_COMPUTE_VERSION(2, 1, 2):
return
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
ds = osgeo.ogr.Open(datasource)
lyr = ds.GetLayer(0)
original_feature_count = lyr.GetFeatureCount()
lyr.DeleteFeature(2)
ds = None
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.featureCount(), original_feature_count)
# Edit a feature (attribute change only)
self.assertTrue(vl.startEditing())
self.assertTrue(vl.dataProvider().changeAttributeValues({0: {0: 100}}))
# Commit changes and check no error is emitted
cbk = ErrorReceiver()
vl.dataProvider().raiseError.connect(cbk.receiveError)
self.assertTrue(vl.commitChanges())
self.assertIsNone(cbk.msg)
self.assertTrue(vl.featureCount(), original_feature_count - 1)
vl = None
# Test repacking has been done
ds = osgeo.ogr.Open(datasource)
self.assertTrue(ds.GetLayer(0).GetFeatureCount(), original_feature_count - 1)
ds = None
def testOpenWithFilter(self):
file_path = os.path.join(TEST_DATA_DIR, 'provider', 'shapefile.shp')
uri = '{}|layerid=0|subset="name" = \'Apple\''.format(file_path)
# ensure that no longer required ogr SQL layers are correctly cleaned up
# we need to run this twice for the incorrect cleanup asserts to trip,
# since they are triggered only when fetching an existing layer from the ogr
# connection pool
for i in range(2):
vl = QgsVectorLayer(uri)
self.assertTrue(vl.isValid(), 'Layer not valid, iteration {}'.format(i + 1))
self.assertEqual(vl.featureCount(), 1)
f = next(vl.getFeatures())
self.assertEqual(f['name'], 'Apple')
# force close of data provider
vl.setDataSource('', 'test', 'ogr')
def testEncoding(self):
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'iso-8859-1.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'ISO-8859-1')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'iso-8859-1_ldid.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'ISO-8859-1')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'latin1.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'ISO-8859-1')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'utf8.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'UTF-8')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'windows-1252.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'windows-1252')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'windows-1252_ldid.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'windows-1252')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
if int(gdal.VersionInfo('VERSION_NUM')) >= GDAL_COMPUTE_VERSION(3, 1, 0):
# correct autodetection of vsizip based shapefiles depends on GDAL 3.1
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'windows-1252.zip')
vl = QgsVectorLayer('/vsizip/{}'.format(file_path))
self.assertTrue(vl.isValid())
self.assertEqual(vl.dataProvider().encoding(), 'windows-1252')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
file_path = os.path.join(TEST_DATA_DIR, 'shapefile', 'system_encoding.shp')
vl = QgsVectorLayer(file_path)
self.assertTrue(vl.isValid())
# no encoding hints, so it should default to UTF-8 (which is wrong for this particular file, but the correct guess to make first!)
self.assertEqual(vl.dataProvider().encoding(), 'UTF-8')
self.assertNotEqual(next(vl.getFeatures())[1], 'äöü')
# set to correct encoding
vl.dataProvider().setEncoding('ISO-8859-1')
self.assertEqual(vl.dataProvider().encoding(), 'ISO-8859-1')
self.assertEqual(next(vl.getFeatures())[1], 'äöü')
def testCreateAttributeIndex(self):
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.dataProvider().capabilities() & QgsVectorDataProvider.CreateAttributeIndex)
self.assertFalse(vl.dataProvider().createAttributeIndex(-1))
self.assertFalse(vl.dataProvider().createAttributeIndex(100))
self.assertTrue(vl.dataProvider().createAttributeIndex(1))
def testCreateSpatialIndex(self):
tmpdir = tempfile.mkdtemp()
self.dirs_to_cleanup.append(tmpdir)
srcpath = os.path.join(TEST_DATA_DIR, 'provider')
for file in glob.glob(os.path.join(srcpath, 'shapefile.*')):
shutil.copy(os.path.join(srcpath, file), tmpdir)
datasource = os.path.join(tmpdir, 'shapefile.shp')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.dataProvider().capabilities() & QgsVectorDataProvider.CreateSpatialIndex)
self.assertTrue(vl.dataProvider().createSpatialIndex())
def testSubSetStringEditable_bug17795_but_with_modified_behavior(self):
"""Test that a layer is still editable after setting a subset"""
testPath = TEST_DATA_DIR + '/' + 'lines.shp'
isEditable = QgsVectorDataProvider.ChangeAttributeValues
vl = QgsVectorLayer(testPath, 'subset_test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.dataProvider().capabilities() & isEditable)
vl = QgsVectorLayer(testPath, 'subset_test', 'ogr')
vl.setSubsetString('')
self.assertTrue(vl.isValid())
self.assertTrue(vl.dataProvider().capabilities() & isEditable)
vl = QgsVectorLayer(testPath, 'subset_test', 'ogr')
vl.setSubsetString('"Name" = \'Arterial\'')
self.assertTrue(vl.isValid())
self.assertTrue(vl.dataProvider().capabilities() & isEditable)
vl.setSubsetString('')
self.assertTrue(vl.dataProvider().capabilities() & isEditable)
def testSubsetStringExtent_bug17863(self):
"""Check that the extent is correct when applied in the ctor and when
modified after a subset string is set """
def _lessdigits(s):
return re.sub(r'(\d+\.\d{3})\d+', r'\1', s)
testPath = TEST_DATA_DIR + '/' + 'points.shp'
subSetString = '"Class" = \'Biplane\''
subSet = '|layerid=0|subset=%s' % subSetString
# unfiltered
vl = QgsVectorLayer(testPath, 'test', 'ogr')
self.assertTrue(vl.isValid())
unfiltered_extent = _lessdigits(vl.extent().toString())
del(vl)
# filter after construction ...
subSet_vl2 = QgsVectorLayer(testPath, 'test', 'ogr')
self.assertEqual(_lessdigits(subSet_vl2.extent().toString()), unfiltered_extent)
# ... apply filter now!
subSet_vl2.setSubsetString(subSetString)
self.assertEqual(subSet_vl2.subsetString(), subSetString)
self.assertNotEqual(_lessdigits(subSet_vl2.extent().toString()), unfiltered_extent)
filtered_extent = _lessdigits(subSet_vl2.extent().toString())
del(subSet_vl2)
# filtered in constructor
subSet_vl = QgsVectorLayer(testPath + subSet, 'subset_test', 'ogr')
self.assertEqual(subSet_vl.subsetString(), subSetString)
self.assertTrue(subSet_vl.isValid())
# This was failing in bug 17863
self.assertEqual(_lessdigits(subSet_vl.extent().toString()), filtered_extent)
self.assertNotEqual(_lessdigits(subSet_vl.extent().toString()), unfiltered_extent)
def testMalformedSubsetStrings(self):
"""Test that invalid where clauses always return false"""
testPath = TEST_DATA_DIR + '/' + 'lines.shp'
vl = QgsVectorLayer(testPath, 'subset_test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.setSubsetString(''))
self.assertTrue(vl.setSubsetString('"Name" = \'Arterial\''))
self.assertTrue(vl.setSubsetString('select * from lines where "Name" = \'Arterial\''))
self.assertFalse(vl.setSubsetString('this is invalid sql'))
self.assertFalse(vl.setSubsetString('select * from lines where "NonExistentField" = \'someValue\''))
self.assertFalse(vl.setSubsetString('select * from lines where "Name" = \'Arte...'))
self.assertFalse(vl.setSubsetString('select * from lines where "Name" in (\'Arterial\', \'Highway\' '))
self.assertFalse(vl.setSubsetString('select * from NonExistentTable'))
self.assertFalse(vl.setSubsetString('select NonExistentField from lines'))
self.assertFalse(vl.setSubsetString('"NonExistentField" = \'someValue\''))
self.assertFalse(vl.setSubsetString('"Name" = \'Arte...'))
self.assertFalse(vl.setSubsetString('"Name" in (\'Arterial\', \'Highway\' '))
self.assertTrue(vl.setSubsetString(''))
def testMultipatch(self):
"""Check that we can deal with multipatch shapefiles, returned natively by OGR as GeometryCollection of TIN"""
testPath = TEST_DATA_DIR + '/' + 'multipatch.shp'
vl = QgsVectorLayer(testPath, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), QgsWkbTypes.MultiPolygonZ)
f = next(vl.getFeatures())
self.assertEqual(f.geometry().wkbType(), QgsWkbTypes.MultiPolygonZ)
self.assertEqual(f.geometry().constGet().asWkt(),
'MultiPolygonZ (((0 0 0, 0 1 0, 1 1 0, 0 0 0)),((0 0 0, 1 1 0, 1 0 0, 0 0 0)),((0 0 0, 0 -1 0, 1 -1 0, 0 0 0)),((0 0 0, 1 -1 0, 1 0 0, 0 0 0)))')
def testShzSupport(self):
''' Test support for single layer compressed shapefiles (.shz) '''
if int(osgeo.gdal.VersionInfo('VERSION_NUM')) < GDAL_COMPUTE_VERSION(3, 1, 0):
return
tmpfile = os.path.join(self.basetestpath, 'testShzSupport.shz')
ds = osgeo.ogr.GetDriverByName('ESRI Shapefile').CreateDataSource(tmpfile)
lyr = ds.CreateLayer('testShzSupport', geom_type=osgeo.ogr.wkbPoint)
lyr.CreateField(osgeo.ogr.FieldDefn('attr', osgeo.ogr.OFTInteger))
f = osgeo.ogr.Feature(lyr.GetLayerDefn())
f.SetField('attr', 1)
f.SetGeometry(osgeo.ogr.CreateGeometryFromWkt('POINT(0 0)'))
lyr.CreateFeature(f)
f = None
ds = None
vl = QgsVectorLayer(tmpfile, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), QgsWkbTypes.Point)
f = next(vl.getFeatures())
assert f['attr'] == 1
self.assertEqual(f.geometry().constGet().asWkt(), 'Point (0 0)')
self.assertTrue(vl.startEditing())
self.assertTrue(vl.changeAttributeValue(f.id(), 0, -1))
self.assertTrue(vl.commitChanges())
f = next(vl.getFeatures())
assert f['attr'] == -1
# Check DataItem
registry = QgsApplication.dataItemProviderRegistry()
ogrprovider = next(provider for provider in registry.providers() if provider.name() == 'OGR')
item = ogrprovider.createDataItem(tmpfile, None)
self.assertTrue(item.uri().endswith('testShzSupport.shz'))
def testShpZipSupport(self):
''' Test support for multi layer compressed shapefiles (.shp.zip) '''
if int(osgeo.gdal.VersionInfo('VERSION_NUM')) < GDAL_COMPUTE_VERSION(3, 1, 0):
return
tmpfile = os.path.join(self.basetestpath, 'testShpZipSupport.shp.zip')
ds = osgeo.ogr.GetDriverByName('ESRI Shapefile').CreateDataSource(tmpfile)
lyr = ds.CreateLayer('layer1', geom_type=osgeo.ogr.wkbPoint)
lyr.CreateField(osgeo.ogr.FieldDefn('attr', osgeo.ogr.OFTInteger))
f = osgeo.ogr.Feature(lyr.GetLayerDefn())
f.SetField('attr', 1)
f.SetGeometry(osgeo.ogr.CreateGeometryFromWkt('POINT(0 0)'))
lyr.CreateFeature(f)
f = None
lyr = ds.CreateLayer('layer2', geom_type=osgeo.ogr.wkbMultiLineString)
lyr.CreateField(osgeo.ogr.FieldDefn('attr', osgeo.ogr.OFTInteger))
f = osgeo.ogr.Feature(lyr.GetLayerDefn())
f.SetField('attr', 2)
f.SetGeometry(osgeo.ogr.CreateGeometryFromWkt('LINESTRING(0 0,1 1)'))
lyr.CreateFeature(f)
f = None
ds = None
vl1 = QgsVectorLayer(tmpfile + '|layername=layer1', 'test', 'ogr')
vl2 = QgsVectorLayer(tmpfile + '|layername=layer2', 'test', 'ogr')
self.assertTrue(vl1.isValid())
self.assertTrue(vl2.isValid())
self.assertEqual(vl1.wkbType(), QgsWkbTypes.Point)
self.assertEqual(vl2.wkbType(), QgsWkbTypes.MultiLineString)
f1 = next(vl1.getFeatures())
f2 = next(vl2.getFeatures())
assert f1['attr'] == 1
self.assertEqual(f1.geometry().constGet().asWkt(), 'Point (0 0)')
assert f2['attr'] == 2
self.assertEqual(f2.geometry().constGet().asWkt(), 'MultiLineString ((0 0, 1 1))')
self.assertTrue(vl1.startEditing())
self.assertTrue(vl2.startEditing())
self.assertTrue(vl1.changeAttributeValue(f1.id(), 0, -1))
self.assertTrue(vl2.changeAttributeValue(f2.id(), 0, -2))
self.assertTrue(vl1.commitChanges())
self.assertTrue(vl2.commitChanges())
f = next(vl1.getFeatures())
assert f['attr'] == -1
f = next(vl2.getFeatures())
assert f['attr'] == -2
# Check DataItem
registry = QgsApplication.dataItemProviderRegistry()
ogrprovider = next(provider for provider in registry.providers() if provider.name() == 'OGR')
item = ogrprovider.createDataItem(tmpfile, None)
children = item.createChildren()
self.assertEqual(len(children), 2)
uris = sorted([children[i].uri() for i in range(2)])
self.assertIn('testShpZipSupport.shp.zip|layername=layer1', uris[0])
self.assertIn('testShpZipSupport.shp.zip|layername=layer2', uris[1])
gdalprovider = next(provider for provider in registry.providers() if provider.name() == 'GDAL')
item = gdalprovider.createDataItem(tmpfile, None)
assert not item
def testWriteShapefileWithSingleConversion(self):
"""Check writing geometries from a POLYGON ESRI shapefile does not
convert to multi when "forceSinglePartGeometryType" options is TRUE
also checks failing cases.
OGR provider always report MULTI for POLYGON and LINESTRING, but if we set
the import option "forceSinglePartGeometryType" the writer must respect the
actual single-part type if the features in the data provider are actually single
and not multi.
"""
ml = QgsVectorLayer(
('Polygon?crs=epsg:4326&field=id:int'),
'test',
'memory')
provider = ml.dataProvider()
ft = QgsFeature()
ft.setGeometry(QgsGeometry.fromWkt('Polygon ((0 0, 0 1, 1 1, 1 0, 0 0))'))
ft.setAttributes([1])
res, features = provider.addFeatures([ft])
dest_file_name = os.path.join(self.basetestpath, 'multipart.shp')
write_result, error_message = QgsVectorLayerExporter.exportLayer(ml,
dest_file_name,
'ogr',
ml.crs(),
False,
{"driverName": "ESRI Shapefile"}
)
self.assertEqual(write_result, QgsVectorLayerExporter.NoError, error_message)
# Open the newly created layer
shapefile_layer = QgsVectorLayer(dest_file_name)
dest_singlepart_file_name = os.path.join(self.basetestpath, 'singlepart.gpkg')
write_result, error_message = QgsVectorLayerExporter.exportLayer(shapefile_layer,
dest_singlepart_file_name,
'ogr',
shapefile_layer.crs(),
False,
{
"forceSinglePartGeometryType": True,
"driverName": "GPKG",
})
self.assertEqual(write_result, QgsVectorLayerExporter.NoError, error_message)
# Load result layer and check that it's NOT MULTI
single_layer = QgsVectorLayer(dest_singlepart_file_name)
self.assertTrue(single_layer.isValid())
self.assertTrue(QgsWkbTypes.isSingleType(single_layer.wkbType()))
# Now save the shapfile layer into a gpkg with no force options
dest_multipart_file_name = os.path.join(self.basetestpath, 'multipart.gpkg')
write_result, error_message = QgsVectorLayerExporter.exportLayer(shapefile_layer,
dest_multipart_file_name,
'ogr',
shapefile_layer.crs(),
False,
{
"forceSinglePartGeometryType": False,
"driverName": "GPKG",
})
self.assertEqual(write_result, QgsVectorLayerExporter.NoError, error_message)
# Load result layer and check that it's MULTI
multi_layer = QgsVectorLayer(dest_multipart_file_name)
self.assertTrue(multi_layer.isValid())
self.assertTrue(QgsWkbTypes.isMultiType(multi_layer.wkbType()))
# Failing case: add a real multi to the shapefile and try to force to single
self.assertTrue(shapefile_layer.startEditing())
ft = QgsFeature()
ft.setGeometry(QgsGeometry.fromWkt('MultiPolygon (((0 0, 0 1, 1 1, 1 0, 0 0)), ((-10 -10,-10 -9,-9 -9,-10 -10)))'))
ft.setAttributes([2])
self.assertTrue(shapefile_layer.addFeatures([ft]))
self.assertTrue(shapefile_layer.commitChanges())