Use context.project() instead of QgsProject.instance() and

QgsProcessingUtils generateTempFileName method
qgis · Jul 22, 2019 · a7ebdfb · a7ebdfb
1 parent ac2d5f4
commit a7ebdfb
Showing 1 changed file with 4 additions and 6 deletions.
diff --git a/python/plugins/processing/algs/qgis/ExecuteSQL.py b/python/plugins/processing/algs/qgis/ExecuteSQL.py
@@ -21,15 +21,14 @@
 __date__ = 'January 2016'
 __copyright__ = '(C) 2016, Hugo Mercier'
 
-import tempfile
-
 from qgis.core import (QgsVirtualLayerDefinition,
                        QgsVectorLayer,
                        QgsWkbTypes,
                        QgsProcessingAlgorithm,
                        QgsProcessingParameterMultipleLayers,
                        QgsProcessingParameterDefinition,
                        QgsExpression,
+                       QgsProcessingUtils,
                        QgsProcessingParameterString,
                        QgsProcessingParameterEnum,
                        QgsProcessingParameterCrs,
@@ -135,10 +134,9 @@ def processAlgorithm(self, parameters, context, feedback):
             # access (thanks the QgsVirtualLayerProvider) to memory layer that
             # belongs to temporary QgsMapLayerStore, not project.
             # So, we write them to disk is this is the case.
-            if not QgsProject.instance().mapLayer(layer.id()):
-                suffix = "." + QgsVectorFileWriter.supportedFormatExtensions()[0]
-                tf = tempfile.NamedTemporaryFile(suffix=suffix)
-                tmp_path = tf.name
+            if not context.project().mapLayer(layer.id()):
+                basename = "memorylayer." + QgsVectorFileWriter.supportedFormatExtensions()[0]
+                tmp_path = QgsProcessingUtils.generateTempFilename(basename)
                 QgsVectorFileWriter.writeAsVectorFormat(
                     layer, tmp_path, layer.dataProvider().encoding())
                 df.addSource('input{}'.format(layerIdx + 1), tmp_path, "ogr")