本文整理汇总了Python中qgis.core.QgsProject.addMapLayers方法的典型用法代码示例。如果您正苦于以下问题:Python QgsProject.addMapLayers方法的具体用法?Python QgsProject.addMapLayers怎么用?Python QgsProject.addMapLayers使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsProject
的用法示例。
在下文中一共展示了QgsProject.addMapLayers方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_zip_unzip
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def test_zip_unzip(self):
tmpDir = QTemporaryDir()
tmpFile = "{}/project.qgz".format(tmpDir.path())
project = QgsProject()
l0 = QgsVectorLayer(os.path.join(TEST_DATA_DIR, "points.shp"), "points", "ogr")
l1 = QgsVectorLayer(os.path.join(TEST_DATA_DIR, "lines.shp"), "lines", "ogr")
project.addMapLayers([l0, l1])
self.assertTrue(project.write(tmpFile))
project2 = QgsProject()
self.assertFalse(project2.isZipped())
self.assertTrue(project2.fileName() == "")
self.assertTrue(project2.read(tmpFile))
self.assertTrue(project2.isZipped())
self.assertTrue(project2.fileName() == tmpFile)
layers = project2.mapLayers()
self.assertEqual(len(layers.keys()), 2)
self.assertTrue(layers[l0.id()].isValid(), True)
self.assertTrue(layers[l1.id()].isValid(), True)
project2.clear()
self.assertFalse(project2.isZipped())
示例2: testLayers
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testLayers(self):
""" check that layers are shown in widget model"""
p = QgsProject.instance()
layer = QgsVectorLayer("Point", "layer1", "memory")
layer2 = QgsVectorLayer("Point", "layer2", "memory")
p.addMapLayers([layer, layer2])
w = QgsExpressionBuilderWidget()
m = w.model()
# check that layers are shown
items = m.findItems('layer1', Qt.MatchRecursive)
self.assertEqual(len(items), 1)
items = m.findItems('layer2', Qt.MatchRecursive)
self.assertEqual(len(items), 1)
# change project
p2 = QgsProject()
layer3 = QgsVectorLayer("Point", "layer3", "memory")
p2.addMapLayers([layer3])
w.setProject(p2)
m = w.model()
items = m.findItems('layer1', Qt.MatchRecursive)
self.assertEqual(len(items), 0)
items = m.findItems('layer2', Qt.MatchRecursive)
self.assertEqual(len(items), 0)
items = m.findItems('layer3', Qt.MatchRecursive)
self.assertEqual(len(items), 1)
示例3: TestQgsLayerTreeView
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
class TestQgsLayerTreeView(unittest.TestCase):
def __init__(self, methodName):
"""Run once on class initialization."""
unittest.TestCase.__init__(self, methodName)
# setup a dummy project
self.project = QgsProject()
self.layer = QgsVectorLayer("Point?field=fldtxt:string",
"layer1", "memory")
self.layer2 = QgsVectorLayer("Point?field=fldtxt:string",
"layer2", "memory")
self.layer3 = QgsVectorLayer("Point?field=fldtxt:string",
"layer3", "memory")
self.project.addMapLayers([self.layer, self.layer2, self.layer3])
self.model = QgsLayerTreeModel(self.project.layerTreeRoot())
def testSetModel(self):
view = QgsLayerTreeView()
# should not work
string_list_model = QStringListModel()
view.setModel(string_list_model)
self.assertFalse(view.model())
# should work
view.setModel(self.model)
self.assertEqual(view.model(), self.model)
def testSetCurrentLayer(self):
view = QgsLayerTreeView()
view.setModel(self.model)
current_layer_changed_spy = QSignalSpy(view.currentLayerChanged)
self.assertFalse(view.currentLayer())
view.setCurrentLayer(self.layer3)
self.assertEqual(view.currentLayer(), self.layer3)
self.assertEqual(len(current_layer_changed_spy), 1)
view.setCurrentLayer(self.layer)
self.assertEqual(view.currentLayer(), self.layer)
self.assertEqual(len(current_layer_changed_spy), 2)
view.setCurrentLayer(None)
self.assertFalse(view.currentLayer())
self.assertEqual(len(current_layer_changed_spy), 3)
def testDefaultActions(self):
view = QgsLayerTreeView()
view.setModel(self.model)
actions = QgsLayerTreeViewDefaultActions(view)
# show in overview action
view.setCurrentLayer(self.layer)
self.assertEqual(view.currentNode().customProperty('overview', 0), False)
show_in_overview = actions.actionShowInOverview()
show_in_overview.trigger()
self.assertEqual(view.currentNode().customProperty('overview', 0), True)
show_in_overview.trigger()
self.assertEqual(view.currentNode().customProperty('overview', 0), False)
示例4: testTransformContextInheritsFromProject
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testTransformContextInheritsFromProject(self):
"""Test that when a layer is added to a project it inherits its context"""
rl = QgsRasterLayer(self.rpath, 'raster')
self.assertFalse(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p = QgsProject()
self.assertFalse(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.setTransformContext(self.ctx)
self.assertTrue(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.addMapLayers([rl])
self.assertTrue(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
示例5: testTransactionDirty
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testTransactionDirty(self):
# create a vector layer based on postgres
vl = QgsVectorLayer(self.dbconn + ' sslmode=disable key=\'pk\' srid=4326 type=POLYGON table="qgis_test"."some_poly_data" (geom) sql=', 'test', 'postgres')
self.assertTrue(vl.isValid())
# prepare a project with transactions enabled
p = QgsProject()
p.setAutoTransaction(True)
p.addMapLayers([vl])
vl.startEditing()
# check that the feature used for testing is ok
ft0 = vl.getFeatures('pk=1')
f = QgsFeature()
self.assertTrue(ft0.nextFeature(f))
# update the data within the transaction
tr = vl.dataProvider().transaction()
sql = "update qgis_test.some_poly_data set pk=33 where pk=1"
self.assertTrue(tr.executeSql(sql, True)[0])
# check that the pk of the feature has been changed
ft = vl.getFeatures('pk=1')
self.assertFalse(ft.nextFeature(f))
ft = vl.getFeatures('pk=33')
self.assertTrue(ft.nextFeature(f))
# underlying data has been modified but the layer is not tagged as
# modified
self.assertTrue(vl.isModified())
# undo sql query
vl.undoStack().undo()
# check that the original feature with pk is back
ft0 = vl.getFeatures('pk=1')
self.assertTrue(ft0.nextFeature(f))
# redo
vl.undoStack().redo()
# check that the pk of the feature has been changed
ft1 = vl.getFeatures('pk=1')
self.assertFalse(ft1.nextFeature(f))
示例6: testTransactionTuple
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testTransactionTuple(self):
# create a vector layer based on postgres
vl = QgsVectorLayer(self.dbconn + ' sslmode=disable key=\'pk\' srid=4326 type=POLYGON table="qgis_test"."some_poly_data" (geom) sql=', 'test', 'postgres')
self.assertTrue(vl.isValid())
# prepare a project with transactions enabled
p = QgsProject()
p.setAutoTransaction(True)
p.addMapLayers([vl])
vl.startEditing()
# execute a query which returns a tuple
tr = vl.dataProvider().transaction()
sql = "select * from qgis_test.some_poly_data"
self.assertTrue(tr.executeSql(sql, False)[0])
# underlying data has not been modified
self.assertFalse(vl.isModified())
示例7: testCustomLayerOrder
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testCustomLayerOrder(self):
""" test project layer order"""
prj = QgsProject()
layer = QgsVectorLayer("Point?field=fldtxt:string",
"layer1", "memory")
layer2 = QgsVectorLayer("Point?field=fldtxt:string",
"layer2", "memory")
layer3 = QgsVectorLayer("Point?field=fldtxt:string",
"layer3", "memory")
prj.addMapLayers([layer, layer2, layer3])
layer_order_changed_spy = QSignalSpy(prj.layerTreeRoot().customLayerOrderChanged)
prj.layerTreeRoot().setCustomLayerOrder([layer2, layer])
self.assertEqual(len(layer_order_changed_spy), 1)
prj.layerTreeRoot().setCustomLayerOrder([layer2, layer])
self.assertEqual(len(layer_order_changed_spy), 1) # no signal, order not changed
self.assertEqual(prj.layerTreeRoot().customLayerOrder(), [layer2, layer])
prj.layerTreeRoot().setCustomLayerOrder([layer])
self.assertEqual(prj.layerTreeRoot().customLayerOrder(), [layer])
self.assertEqual(len(layer_order_changed_spy), 2)
# remove a layer
prj.layerTreeRoot().setCustomLayerOrder([layer2, layer, layer3])
self.assertEqual(len(layer_order_changed_spy), 3)
prj.removeMapLayer(layer)
self.assertEqual(prj.layerTreeRoot().customLayerOrder(), [layer2, layer3])
self.assertEqual(len(layer_order_changed_spy), 4)
# save and restore
file_name = os.path.join(QDir.tempPath(), 'proj.qgs')
prj.setFileName(file_name)
prj.write()
prj2 = QgsProject()
prj2.setFileName(file_name)
prj2.read()
self.assertEqual([l.id() for l in prj2.layerTreeRoot().customLayerOrder()], [layer2.id(), layer3.id()])
# clear project
prj.clear()
self.assertEqual(prj.layerTreeRoot().customLayerOrder(), [])
示例8: prepareIteratorLayout
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def prepareIteratorLayout(self):
layer_path = os.path.join(TEST_DATA_DIR, 'france_parts.shp')
layer = QgsVectorLayer(layer_path, 'test', "ogr")
project = QgsProject()
project.addMapLayers([layer])
# select epsg:2154
crs = QgsCoordinateReferenceSystem()
crs.createFromSrid(2154)
project.setCrs(crs)
layout = QgsPrintLayout(project)
layout.initializeDefaults()
# fix the renderer, fill with green
props = {"color": "0,127,0", "outline_width": "4", "outline_color": '255,255,255'}
fillSymbol = QgsFillSymbol.createSimple(props)
renderer = QgsSingleSymbolRenderer(fillSymbol)
layer.setRenderer(renderer)
# the atlas map
atlas_map = QgsLayoutItemMap(layout)
atlas_map.attemptSetSceneRect(QRectF(20, 20, 130, 130))
atlas_map.setFrameEnabled(True)
atlas_map.setLayers([layer])
layout.addLayoutItem(atlas_map)
# the atlas
atlas = layout.atlas()
atlas.setCoverageLayer(layer)
atlas.setEnabled(True)
atlas_map.setExtent(
QgsRectangle(332719.06221504929, 6765214.5887386119, 560957.85090677091, 6993453.3774303338))
atlas_map.setAtlasDriven(True)
atlas_map.setAtlasScalingMode(QgsLayoutItemMap.Auto)
atlas_map.setAtlasMargin(0.10)
return project, layout
示例9: testTransformContextIsSyncedFromProject
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testTransformContextIsSyncedFromProject(self):
"""Test that when a layer is synced when project context changes"""
rl = QgsRasterLayer(self.rpath, 'raster')
self.assertFalse(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p = QgsProject()
self.assertFalse(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.setTransformContext(self.ctx)
self.assertTrue(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.addMapLayers([rl])
self.assertTrue(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
# Now change the project context
tc2 = QgsCoordinateTransformContext()
p.setTransformContext(tc2)
self.assertFalse(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
self.assertFalse(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.setTransformContext(self.ctx)
self.assertTrue(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
self.assertTrue(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
示例10: test_mapLayersByName
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def test_mapLayersByName(self):
""" test retrieving map layer by name """
p = QgsProject()
# test no crash with empty registry
self.assertEqual(p.mapLayersByName('bad'), [])
self.assertEqual(p.mapLayersByName(None), [])
l1 = createLayer('test')
l2 = createLayer('test2')
p.addMapLayers([l1, l2])
self.assertEqual(p.mapLayersByName('bad'), [])
self.assertEqual(p.mapLayersByName(None), [])
self.assertEqual(p.mapLayersByName('test'), [l1])
self.assertEqual(p.mapLayersByName('test2'), [l2])
#duplicate name
l3 = createLayer('test')
p.addMapLayer(l3)
self.assertEqual(set(p.mapLayersByName('test')), set([l1, l3]))
示例11: testQgdCreation
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testQgdCreation(self):
# New project
p = QgsProject()
self.assertTrue(p.auxiliaryStorage().isValid())
# Save the project
path = tmpPath()
qgs = path + '.qgs'
self.assertTrue(p.write(qgs))
self.assertTrue(os.path.exists(qgs))
# Auxiliary storage is empty so .qgd file should not be saved
qgd = path + '.qgd'
self.assertFalse(os.path.exists(qgd))
# Add a vector layer and an auxiliary layer in the project
vl = createLayer()
self.assertTrue(vl.isValid())
p.addMapLayers([vl])
pkf = vl.fields().field(vl.fields().indexOf('pk'))
al = p.auxiliaryStorage().createAuxiliaryLayer(pkf, vl)
self.assertTrue(al.isValid())
vl.setAuxiliaryLayer(al)
# Add an auxiliary field to have a non empty auxiliary storage
pdef = QgsPropertyDefinition('propname', QgsPropertyDefinition.DataTypeNumeric, '', '', 'ut')
self.assertTrue(al.addAuxiliaryField(pdef))
# Save the project
newpath = tmpPath()
qgs = newpath + '.qgs'
self.assertTrue(p.write(qgs))
self.assertTrue(os.path.exists(qgs))
# Auxiliary storage is NOT empty so .qgd file should be saved now
qgd = newpath + '.qgd'
self.assertTrue(os.path.exists(qgd))
示例12: testRelativePaths
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testRelativePaths(self):
"""
Test whether paths to layer sources are stored as relative to the project path
"""
tmpDir = QTemporaryDir()
tmpFile = "{}/project.qgs".format(tmpDir.path())
copyfile(os.path.join(TEST_DATA_DIR, "points.shp"), os.path.join(tmpDir.path(), "points.shp"))
copyfile(os.path.join(TEST_DATA_DIR, "points.dbf"), os.path.join(tmpDir.path(), "points.dbf"))
copyfile(os.path.join(TEST_DATA_DIR, "points.shx"), os.path.join(tmpDir.path(), "points.shx"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.shp"), os.path.join(tmpDir.path(), "lines.shp"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.dbf"), os.path.join(tmpDir.path(), "lines.dbf"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.shx"), os.path.join(tmpDir.path(), "lines.shx"))
copyfile(os.path.join(TEST_DATA_DIR, "landsat_4326.tif"), os.path.join(tmpDir.path(), "landsat_4326.tif"))
project = QgsProject()
l0 = QgsVectorLayer(os.path.join(tmpDir.path(), "points.shp"), "points", "ogr")
l1 = QgsVectorLayer(os.path.join(tmpDir.path(), "lines.shp"), "lines", "ogr")
l2 = QgsRasterLayer(os.path.join(tmpDir.path(), "landsat_4326.tif"), "landsat", "gdal")
self.assertTrue(l0.isValid())
self.assertTrue(l1.isValid())
self.assertTrue(l2.isValid())
self.assertTrue(project.addMapLayers([l0, l1, l2]))
self.assertTrue(project.write(tmpFile))
del project
with open(tmpFile, 'r') as f:
content = ''.join(f.readlines())
self.assertTrue('source="./lines.shp"' in content)
self.assertTrue('source="./points.shp"' in content)
self.assertTrue('source="./landsat_4326.tif"' in content)
# Re-read the project and store absolute
project = QgsProject()
self.assertTrue(project.read(tmpFile))
store = project.layerStore()
self.assertEquals(set([l.name() for l in store.mapLayers().values()]), set(['lines', 'landsat', 'points']))
project.writeEntryBool('Paths', '/Absolute', True)
tmpFile2 = "{}/project2.qgs".format(tmpDir.path())
self.assertTrue(project.write(tmpFile2))
with open(tmpFile2, 'r') as f:
content = ''.join(f.readlines())
self.assertTrue('source="{}/lines.shp"'.format(tmpDir.path()) in content)
self.assertTrue('source="{}/points.shp"'.format(tmpDir.path()) in content)
self.assertTrue('source="{}/landsat_4326.tif"'.format(tmpDir.path()) in content)
del project
示例13: testSymbolicLinkInProjectPath
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testSymbolicLinkInProjectPath(self):
"""
Test whether paths to layer sources relative to the project are stored correctly
when project'name contains a symbolic link.
In other words, test if project's and layers' names are correctly resolved.
"""
tmpDir = QTemporaryDir()
tmpFile = "{}/project.qgs".format(tmpDir.path())
copyfile(os.path.join(TEST_DATA_DIR, "points.shp"), os.path.join(tmpDir.path(), "points.shp"))
copyfile(os.path.join(TEST_DATA_DIR, "points.dbf"), os.path.join(tmpDir.path(), "points.dbf"))
copyfile(os.path.join(TEST_DATA_DIR, "points.shx"), os.path.join(tmpDir.path(), "points.shx"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.shp"), os.path.join(tmpDir.path(), "lines.shp"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.dbf"), os.path.join(tmpDir.path(), "lines.dbf"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.shx"), os.path.join(tmpDir.path(), "lines.shx"))
copyfile(os.path.join(TEST_DATA_DIR, "landsat_4326.tif"), os.path.join(tmpDir.path(), "landsat_4326.tif"))
project = QgsProject()
l0 = QgsVectorLayer(os.path.join(tmpDir.path(), "points.shp"), "points", "ogr")
l1 = QgsVectorLayer(os.path.join(tmpDir.path(), "lines.shp"), "lines", "ogr")
l2 = QgsRasterLayer(os.path.join(tmpDir.path(), "landsat_4326.tif"), "landsat", "gdal")
self.assertTrue(l0.isValid())
self.assertTrue(l1.isValid())
self.assertTrue(l2.isValid())
self.assertTrue(project.addMapLayers([l0, l1, l2]))
self.assertTrue(project.write(tmpFile))
del project
# Create symbolic link to previous project
tmpDir2 = QTemporaryDir()
symlinkDir = os.path.join(tmpDir2.path(), "dir")
os.symlink(tmpDir.path(), symlinkDir)
tmpFile = "{}/project.qgs".format(symlinkDir)
# Open project from symmlink and force re-save.
project = QgsProject()
self.assertTrue(project.read(tmpFile))
self.assertTrue(project.write(tmpFile))
del project
with open(tmpFile, 'r') as f:
content = ''.join(f.readlines())
self.assertTrue('source="./lines.shp"' in content)
self.assertTrue('source="./points.shp"' in content)
self.assertTrue('source="./landsat_4326.tif"' in content)
示例14: testLayerChangeDirtiesProject
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testLayerChangeDirtiesProject(self):
"""
Test that making changes to certain layer properties results in dirty projects
"""
p = QgsProject()
l = QgsVectorLayer(os.path.join(TEST_DATA_DIR, "points.shp"), "points", "ogr")
self.assertTrue(l.isValid())
self.assertTrue(p.addMapLayers([l]))
p.setDirty(False)
l.setCrs(QgsCoordinateReferenceSystem('EPSG:3111'))
self.assertTrue(p.isDirty())
p.setDirty(False)
l.setName('test')
self.assertTrue(p.isDirty())
p.setDirty(False)
self.assertTrue(l.setSubsetString('class=\'a\''))
self.assertTrue(p.isDirty())
示例15: testProjectStorage
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import addMapLayers [as 别名]
def testProjectStorage(self):
# New project without fileName
p0 = QgsProject()
self.assertTrue(p0.auxiliaryStorage().isValid())
# Create new layers with key otherwise auxiliary layers are not
# automacially created when added in project
vl0 = createLayer()
vl0Shp = writeShape(vl0, 'vl0.shp')
vl1 = createLayer()
vl1Shp = writeShape(vl1, 'vl1.shp')
vl0 = QgsVectorLayer(vl0Shp, 'points', 'ogr')
self.assertTrue(vl0.isValid())
vl1 = QgsVectorLayer(vl1Shp, 'points', 'ogr')
self.assertTrue(vl1.isValid())
# Add layers to project and check underlying auxiliary layers
p0.addMapLayers([vl0, vl1])
self.assertTrue(vl0.loadAuxiliaryLayer(p0.auxiliaryStorage(), 'pk'))
self.assertTrue(vl1.loadAuxiliaryLayer(p0.auxiliaryStorage(), 'num_char'))
al0 = vl0.auxiliaryLayer()
al1 = vl1.auxiliaryLayer()
self.assertEqual(al0.joinInfo().targetFieldName(), 'pk')
self.assertEqual(al1.joinInfo().targetFieldName(), 'num_char')
# Add a field in auxiliary layers
pdef0 = QgsPropertyDefinition('propname', QgsPropertyDefinition.DataTypeNumeric, '', '', 'ut')
self.assertTrue(al0.addAuxiliaryField(pdef0))
pdef1 = QgsPropertyDefinition('propname1', QgsPropertyDefinition.DataTypeString, '', '', 'ut')
self.assertTrue(al1.addAuxiliaryField(pdef1))
# Check auxiliary fields names
af0Name = QgsAuxiliaryLayer.nameFromProperty(pdef0, False)
self.assertEqual(af0Name, 'ut_propname')
af1Name = QgsAuxiliaryLayer.nameFromProperty(pdef1, False)
self.assertEqual(af1Name, 'ut_propname1')
# Set value for auxiliary fields
req = QgsFeatureRequest().setFilterExpression("name = 'Honey'")
f = QgsFeature()
vl0.getFeatures(req).nextFeature(f)
self.assertTrue(f.isValid())
af0Name = QgsAuxiliaryLayer.nameFromProperty(pdef0, True)
index0 = vl0.fields().indexOf(af0Name)
vl0.changeAttributeValue(f.id(), index0, 333)
req = QgsFeatureRequest().setFilterExpression("name = 'Apple'")
f = QgsFeature()
vl1.getFeatures(req).nextFeature(f)
self.assertTrue(f.isValid())
af1Name = QgsAuxiliaryLayer.nameFromProperty(pdef1, True)
index1 = vl1.fields().indexOf(af1Name)
vl1.changeAttributeValue(f.id(), index0, 'myvalue')
req = QgsFeatureRequest().setFilterExpression("name = 'Orange'")
f = QgsFeature()
vl1.getFeatures(req).nextFeature(f)
self.assertTrue(f.isValid())
vl1.changeAttributeValue(f.id(), index0, 'myvalue1')
# Save the project in a zip file
f = tmpPath() + '.qgz'
p0.write(f)
# Open the zip file with embedded auxiliary storage
p1 = QgsProject()
p1.read(f)
# Check that auxiliary fields are well loaded in layers
self.assertEqual(len(p1.mapLayers().values()), 2)
for vl in p1.mapLayers().values():
al = vl.auxiliaryLayer()
self.assertEqual(len(al.auxiliaryFields()), 1)
af = al.auxiliaryFields()[0]
afPropDef = QgsAuxiliaryLayer.propertyDefinitionFromField(af)
self.assertEqual(afPropDef.origin(), 'ut')
if vl.auxiliaryLayer().joinInfo().targetFieldName() == 'pk':
self.assertEqual(afPropDef.name(), 'propname')
self.assertEqual(al.featureCount(), 1)
req = QgsFeatureRequest().setFilterExpression("name = 'Honey'")
f = QgsFeature()
vl.getFeatures(req).nextFeature(f)
self.assertTrue(f.isValid())
self.assertEqual(f.attributes()[index0], 333.0)
else: # num_char
self.assertEqual(al.featureCount(), 2)
self.assertEqual(afPropDef.name(), 'propname1')
req = QgsFeatureRequest().setFilterExpression("name = 'Apple'")
#.........这里部分代码省略.........