def err_missing_parent(self, obj):
        self.report("ERROR: parent object not found for %s" % (obj.dn))
        if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
            self.report('Not moving object %s into LostAndFound' % (obj.dn))
            return

        keep_transaction = True
        self.samdb.transaction_start()
        try:
            nc_root = self.samdb.get_nc_root(obj.dn);
            lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
            new_dn = ldb.Dn(self.samdb, str(obj.dn))
            new_dn.remove_base_components(len(new_dn) - 1)
            if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
                              "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
                self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))

                m = ldb.Message()
                m.dn = obj.dn
                m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')

                if self.do_modify(m, [],
                                  "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
                    self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
                    keep_transaction = True
        except:
            self.samdb.transaction_cancel()
            raise

        if keep_transaction:
            self.samdb.transaction_commit()
        else:
            self.samdb.transaction_cancel()
Constructor for BarChart objects.
dataset/ETHPy150Open byt3bl33d3r/pth-toolkit/lib/python2.7/site-packages/samba/dbchecker.py/dbcheck.err_missing_parent--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/graphy/graphy/bar_chart.py/BarChart.__init__