Using x++ code updated to system filed values

The following X++ code using to update system field values.
Wrote by Jimmy Jan 20th 2011

1)Add  the Static method(UpdateupdateSystemFieldValues) to the global class.

static server void updateSystemFieldValues(common    _common,
                                           int       _systemFieldNum,
                                           anytype   _fieldvalue)
{
    Dictfield   _dictField    =   new Dictfield(_common.TableId,_systemFieldNum);
;
    if  (!_dictField)
        return;
    
    if  (_dictField.isSystem())
    {
        new OverwriteSystemfieldsPermission().assert();
        _common.overwriteSystemfields(true);
        _common.(_systemFieldNum) =   _fieldValue;
        CodeAccessPermission::revertAssert();
        _common.overwriteSystemfields(false);
    }
    else
    {
        _common.(_systemFieldNum) =   _fieldValue;
    }
}

2)Job invoking the global static method updateSystemFieldValues

static void Jimmy_UpdateupdateSystemFieldValues(Args _args)
{
    salesTable   salesTable;
    ;
    ttsbegin;
    select firstonly forupdate salesTable
        where salesTable.createdBy == "tyler";
    if(salesTable)
    {
        info(strfmt("%1 - %2 - %3",salesTable.SalesId,salesTable.createdBy,salesTable.RecId));

        global::UpdateupdateSystemFieldValues(salesTable,fieldnum(SalesTable,createdby),"Jimmy");
        salesTable.update();
    }
    ttscommit;
}