[processing] Fix creation of new layers doesn't default output folder

Fixes #19637

Author: nyalldawson

python/plugins/processing/gui/DestinationSelectionPanel.py

@@ -30,7 +30,7 @@
 import warnings
 
 from qgis.PyQt import uic
-from qgis.PyQt.QtCore import QCoreApplication, QDir, pyqtSignal
+from qgis.PyQt.QtCore import QCoreApplication, QDir, pyqtSignal, QFileInfo
 from qgis.PyQt.QtWidgets import QDialog, QMenu, QAction, QFileDialog, QInputDialog
 from qgis.PyQt.QtGui import QCursor
 from qgis.gui import QgsEncodingSelectionDialog
@@ -331,6 +331,17 @@ def getValue(self):
         if not key and self.parameter.flags() & QgsProcessingParameterDefinition.FlagOptional:
             return None
 
+        if key and not key.startswith('memory:') \
+                and not key.startswith('ogr:') \
+                and not key.startswith('postgres:') \
+                and not key.startswith('postgis:'):
+            # output should be a file path
+            folder = QFileInfo(key).path()
+            if folder == '.':
+                # output name does not include a folder - use default
+                default_folder = ProcessingConfig.getSetting(ProcessingConfig.OUTPUT_FOLDER)
+                key = QDir(default_folder).filePath(key)
+
         if isinstance(self.parameter, QgsProcessingParameterFolderDestination):
             return key
 

python/plugins/processing/tests/GuiTest.py

@@ -29,6 +29,12 @@
 from qgis.core import (QgsApplication,
                        QgsCoordinateReferenceSystem,
                        QgsProcessingParameterMatrix,
+                       QgsProcessingOutputLayerDefinition,
+                       QgsProcessingParameterFeatureSink,
+                       QgsProcessingParameterFileDestination,
+                       QgsProcessingParameterFolderDestination,
+                       QgsProcessingParameterVectorDestination,
+                       QgsProcessingParameterRasterDestination,
                        QgsVectorLayer,
                        QgsProject)
 from qgis.analysis import QgsNativeAlgorithms
@@ -37,10 +43,13 @@
 from processing.gui.BatchAlgorithmDialog import BatchAlgorithmDialog
 from processing.modeler.ModelerParametersDialog import ModelerParametersDialog
 from processing.gui.wrappers import *
+from processing.gui.DestinationSelectionPanel import DestinationSelectionPanel
 
 start_app()
 QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())
 
+testDataPath = os.path.join(os.path.dirname(__file__), 'testdata')
+
 
 class AlgorithmDialogTest(unittest.TestCase):
 
@@ -52,6 +61,10 @@ def testCreation(self):
 
 class WrappersTest(unittest.TestCase):
 
+    @classmethod
+    def setUpClass(cls):
+        ProcessingConfig.initialize()
+
     def checkConstructWrapper(self, param, expected_wrapper_class):
         alg = QgsApplication.processingRegistry().algorithmById('native:centroids')
 
@@ -270,6 +283,118 @@ def testNumber(self):
     def testBand(self):
         self.checkConstructWrapper(QgsProcessingParameterBand('test'), BandWidgetWrapper)
 
+    def testFeatureSink(self):
+        param = QgsProcessingParameterFeatureSink('test')
+        alg = QgsApplication.processingRegistry().algorithmById('native:centroids')
+        panel = DestinationSelectionPanel(param, alg)
+
+        panel.setValue('memory:')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), 'memory:')
+
+        panel.setValue('''ogr:dbname='/me/a.gpkg' table="d" (geom) sql=''')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '''ogr:dbname='/me/a.gpkg' table="d" (geom) sql=''')
+
+        panel.setValue('''postgis:dbname='oraclesux' host=10.1.1.221 port=5432 user='qgis' password='qgis' table="stufff"."output" (the_geom) sql=''')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '''postgis:dbname='oraclesux' host=10.1.1.221 port=5432 user='qgis' password='qgis' table="stufff"."output" (the_geom) sql=''')
+
+        panel.setValue('/home/me/test.shp')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '/home/me/test.shp')
+
+        ProcessingConfig.setSettingValue(ProcessingConfig.OUTPUT_FOLDER, testDataPath)
+        panel.setValue('test.shp')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), os.path.join(testDataPath, 'test.shp'))
+
+    def testVectorDestination(self):
+        param = QgsProcessingParameterVectorDestination('test')
+        alg = QgsApplication.processingRegistry().algorithmById('native:centroids')
+        panel = DestinationSelectionPanel(param, alg)
+
+        panel.setValue('''ogr:dbname='/me/a.gpkg' table="d" (geom) sql=''')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '''ogr:dbname='/me/a.gpkg' table="d" (geom) sql=''')
+
+        panel.setValue('''postgis:dbname='oraclesux' host=10.1.1.221 port=5432 user='qgis' password='qgis' table="stufff"."output" (the_geom) sql=''')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '''postgis:dbname='oraclesux' host=10.1.1.221 port=5432 user='qgis' password='qgis' table="stufff"."output" (the_geom) sql=''')
+
+        panel.setValue('/home/me/test.shp')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '/home/me/test.shp')
+
+        ProcessingConfig.setSettingValue(ProcessingConfig.OUTPUT_FOLDER, testDataPath)
+        panel.setValue('test.shp')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), os.path.join(testDataPath, 'test.shp'))
+
+    def testRasterDestination(self):
+        param = QgsProcessingParameterRasterDestination('test')
+        alg = QgsApplication.processingRegistry().algorithmById('native:centroids')
+        panel = DestinationSelectionPanel(param, alg)
+
+        panel.setValue('/home/me/test.tif')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), '/home/me/test.tif')
+
+        ProcessingConfig.setSettingValue(ProcessingConfig.OUTPUT_FOLDER, testDataPath)
+        panel.setValue('test.tif')
+        v = panel.getValue()
+        self.assertIsInstance(v, QgsProcessingOutputLayerDefinition)
+        self.assertEqual(v.createOptions, {'fileEncoding': 'System'})
+        self.assertEqual(v.sink.staticValue(), os.path.join(testDataPath, 'test.tif'))
+
+    def testFolderDestination(self):
+        param = QgsProcessingParameterFolderDestination('test')
+        alg = QgsApplication.processingRegistry().algorithmById('native:centroids')
+        panel = DestinationSelectionPanel(param, alg)
+
+        panel.setValue('/home/me/test.tif')
+        v = panel.getValue()
+        self.assertEqual(v, '/home/me/test.tif')
+
+        ProcessingConfig.setSettingValue(ProcessingConfig.OUTPUT_FOLDER, testDataPath)
+        panel.setValue('test.tif')
+        v = panel.getValue()
+        self.assertEqual(v, os.path.join(testDataPath, 'test.tif'))
+
+    def testFileDestination(self):
+        param = QgsProcessingParameterFileDestination('test')
+        alg = QgsApplication.processingRegistry().algorithmById('native:centroids')
+        panel = DestinationSelectionPanel(param, alg)
+
+        panel.setValue('/home/me/test.tif')
+        v = panel.getValue()
+        self.assertEqual(v, '/home/me/test.tif')
+
+        ProcessingConfig.setSettingValue(ProcessingConfig.OUTPUT_FOLDER, testDataPath)
+        panel.setValue('test.tif')
+        v = panel.getValue()
+        self.assertEqual(v, os.path.join(testDataPath, 'test.tif'))
+
 
 if __name__ == '__main__':
     unittest.main()