[processing] Fix traceback when modeller parameter invalid value is d…

…etected (cherry picked from commit 64bd9e5)
qgis · Nov 27, 2018 · 5e4d156 · 5e4d156
1 parent bb8854f
commit 5e4d156
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/python/plugins/processing/modeler/ModelerParametersDialog.py b/python/plugins/processing/modeler/ModelerParametersDialog.py
@@ -351,7 +351,9 @@ def createAlgorithm(self):
                 continue
             try:
                 wrapper = self.wrappers[param.name()]
-                if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
+                if issubclass(wrapper.__class__, WidgetWrapper):
+                    val = wrapper.value()
+                elif issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
                     val = wrapper.value()
                 else:
                     val = wrapper.parameterValue()