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From ed03e99ee582cb4abd1ae08cf333da8c0975a4c8 Mon Sep 17 00:00:00 2001
From: Luigi Pirelli <luipir@gmail.com>
Date: Tue, 9 May 2017 13:39:23 +0200
Subject: [PATCH] catch uncatched exception when item has lost reference.
fixies #15868
---
python/plugins/db_manager/layer_preview.py | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/python/plugins/db_manager/layer_preview.py b/python/plugins/db_manager/layer_preview.py
index 27bba0a8f13..9947b1ef4d8 100644
--- a/python/plugins/db_manager/layer_preview.py
+++ b/python/plugins/db_manager/layer_preview.py
@@ -25,7 +25,7 @@
from qgis.PyQt.QtWidgets import QApplication
from qgis.gui import QgsMapCanvas, QgsMapCanvasLayer, QgsMessageBar
-from qgis.core import QgsVectorLayer, QgsMapLayerRegistry, QgsProject
+from qgis.core import QgsVectorLayer, QgsMapLayerRegistry, QgsProject, QgsMessageLog
from .db_plugins.plugin import Table
@@ -78,11 +78,13 @@ def setDirty(self, val=True):
def _clear(self):
""" remove any layers from preview canvas """
if self.item is not None:
- ## skip exception on RuntimeError fixes #6892
try:
self.item.aboutToChange.disconnect(self.setDirty)
- except RuntimeError:
- pass
+ ## skip exception on RuntimeError fixes #6892
+ ## skip TypeError and generic Exceptions fixes #15868
+ ## generally due the remove of self.item object or C++ referenced object
+ except Exception as ex:
+ QgsMessageLog.logMessage(unicode(ex))
self.item = None
self.dirty = False
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