From 4c66748ade7a74bba2fdee3d2329d81c1ca079f4 Mon Sep 17 00:00:00 2001
From: sliptonic <shopinthewoods@gmail.com>
Date: Sat, 19 Nov 2016 17:05:41 -0600
Subject: [PATCH] PATH: Prevent Job creation without Base object.

PathMillFace won't add a base if it isn't known to the parent
---
 src/Mod/Path/PathScripts/PathJob.py      | 3 +++
 src/Mod/Path/PathScripts/PathMillFace.py | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/src/Mod/Path/PathScripts/PathJob.py b/src/Mod/Path/PathScripts/PathJob.py
index 27ee74515..12bee9bd7 100644
--- a/src/Mod/Path/PathScripts/PathJob.py
+++ b/src/Mod/Path/PathScripts/PathJob.py
@@ -243,6 +243,9 @@ class TaskPanel:
         self.postProcessorArgsDefaultTooltip = self.form.cboPostProcessorArgs.toolTip()
 
     def accept(self):
+        if self.obj.Base is None:
+            QtGui.QMessageBox.information(None,"","No Base Object Selected.")
+            return
         self.getFields()
         FreeCADGui.ActiveDocument.resetEdit()
         FreeCADGui.Control.closeDialog()
diff --git a/src/Mod/Path/PathScripts/PathMillFace.py b/src/Mod/Path/PathScripts/PathMillFace.py
index d27c1adf5..3692ced04 100644
--- a/src/Mod/Path/PathScripts/PathMillFace.py
+++ b/src/Mod/Path/PathScripts/PathMillFace.py
@@ -27,6 +27,7 @@ import Path
 from PySide import QtCore, QtGui
 from PathScripts import PathUtils
 import Part
+import PathScripts.PathUtils
 import PathScripts.PathKurveUtils
 import area
 import TechDraw
@@ -135,6 +136,10 @@ class ObjectFace:
 
 
     def addFacebase(self, obj, ss, sub=""):
+        parent = PathScripts.PathUtils.findParentJob(obj)
+        if parent.Base is None:
+            return
+
         baselist = obj.Base
         if baselist is None:
             baselist = []