public static Query JoinLastTableSource(this Query query, TableSourceBase joinTableSource, PredicateBase on, JoinType joinType)
{
Argument.NotNull(query, "query");
Argument.NotNull(joinTableSource, "joinTableSource");
var lastTableSource = query.From.InternalNodes.LastOrDefault();
if (lastTableSource == null)
{
throw new InvalidOperationException("Query's table source list is empty.");
}
var newTableSource = new JoinedTableSource(lastTableSource, joinTableSource, on, joinType);
return(new Query(query.Select, query.From.ReplaceLast(newTableSource), query.Where));
}
protected internal virtual void VisitJoinedTableSource(JoinedTableSource tableSource)
{
Visit(tableSource.Left);
Visit(tableSource.Right);
Visit(tableSource.On);
}