public static Sql.IAggregateFunction <T, TR> OrderBy <T, TR>(
[ExprParameter] this Sql.IAggregateFunctionNotOrdered <T, TR> aggregate)
{
if (aggregate == null)
{
throw new ArgumentNullException(nameof(aggregate));
}
var query = aggregate.Query.Provider.CreateQuery <TR>(
Expression.Call(
null,
MethodHelper.GetMethodInfo(OrderBy, aggregate), Expression.Constant(aggregate)
));
return(new Sql.AggregateFunctionNotOrderedImpl <T, TR>(query));
}
public static Sql.IAggregateFunctionOrdered <T, TR> OrderByDescending <T, TR, TKey>(
this Sql.IAggregateFunctionNotOrdered <T, TR> aggregate,
[ExprParameter] Expression <Func <T, TKey> > expr)
{
if (aggregate == null)
{
throw new ArgumentNullException(nameof(aggregate));
}
if (expr == null)
{
throw new ArgumentNullException(nameof(expr));
}
var query = aggregate.Query.Provider.CreateQuery <TR>(
Expression.Call(
null,
MethodHelper.GetMethodInfo(OrderByDescending, aggregate, expr),
Expression.Constant(aggregate), Expression.Quote(expr)));
return(new Sql.AggregateFunctionNotOrderedImpl <T, TR>(query));
}
