App: [skip ci] expose functions to Python to get status string of a feature and whether it's valid

src/App/DocumentObjectPy.xml

@@ -65,6 +65,20 @@
                 <UserDocu>recompute(recursive=False): Recomputes this object</UserDocu>
             </Documentation>
         </Methode>
+        <Methode Name="getStatusString" const="True">
+            <Documentation>
+                <UserDocu>Returns the status of the object as string.
+If the object is invalid its error description will be returned.
+If the object is valid but touched then &apos;Touched&apos; will be returned,
+&apos;Valid&apos; otherwise.
+</UserDocu>
+            </Documentation>
+        </Methode>
+        <Methode Name="isValid" const="True">
+            <Documentation>
+                <UserDocu>Returns True if the object is valid, False otherwise</UserDocu>
+            </Documentation>
+        </Methode>
         <Methode Name="getSubObject" Keyword="true">
             <Documentation>
                 <UserDocu>

src/App/DocumentObjectPyImp.cpp

@@ -397,6 +397,34 @@ PyObject*  DocumentObjectPy::recompute(PyObject *args)
     }
 }
 
+PyObject*  DocumentObjectPy::isValid(PyObject *args)
+{
+    if (!PyArg_ParseTuple(args, ""))
+        return nullptr;
+
+    try {
+        bool ok = getDocumentObjectPtr()->isValid();
+        return Py_BuildValue("O", (ok ? Py_True : Py_False));
+    }
+    catch (const Base::Exception& e) {
+        throw Py::RuntimeError(e.what());
+    }
+}
+
+PyObject*  DocumentObjectPy::getStatusString(PyObject *args)
+{
+    if (!PyArg_ParseTuple(args, ""))
+        return nullptr;
+
+    try {
+        Py::String text(getDocumentObjectPtr()->getStatusString());
+        return Py::new_reference_to(text);
+    }
+    catch (const Base::Exception& e) {
+        throw Py::RuntimeError(e.what());
+    }
+}
+
 PyObject*  DocumentObjectPy::getSubObject(PyObject *args, PyObject *keywds)
 {
     PyObject *obj;