[processing] fixed field loading in field calculator

fixes #15767
qgis · Oct 27, 2016 · dc4f1a4290a762073af508033ea1935a9e5a1dc0 · dc4f1a4
1 parent ba309cb
commit dc4f1a4290a762073af508033ea1935a9e5a1dc0
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/python/plugins/processing/algs/qgis/ui/FieldsCalculatorDialog.py b/python/plugins/processing/algs/qgis/ui/FieldsCalculatorDialog.py
@@ -90,6 +90,7 @@ def manageGui(self):
         self.builder.loadRecent('fieldcalc')
 
         self.initContext()
+        self.updateLayer()
 
     def initContext(self):
         exp_context = self.builder.expressionContext()
@@ -170,7 +171,8 @@ def toggleNewGroup(self, toggled):
     def populateFields(self):
         if self.layer is None:
             return
-
+
+        self.mExistingFieldComboBox.clear()
         fields = self.layer.pendingFields()
         for f in fields:
             self.mExistingFieldComboBox.addItem(f.name())