public Expression HandleLeave(
SelectionVisitorContext context,
IFieldSelection selection,
Expression expression)
{
if (context.TryGetValueNode(ArgumentName, out IValueNode sortArgument) &&
selection.Field.Arguments[ArgumentName].Type is InputObjectType iot &&
iot is ISortInputType fit)
{
var visitor = new QueryableSortVisitor(iot, fit.EntityType);
sortArgument.Accept(visitor);
return(visitor.Compile(expression));
}
return(expression);
}
public static QueryableSortVisitor GetQueryableSortExpr <TDto>(this IResolverContext context)
{
QueryableSortVisitor queryableSortVisitor = null;
if (context.Field?.Arguments[SortObjectFieldDescriptorExtensions.OrderByArgumentName]?.Type is
InputObjectType iot &&
iot is ISortInputType fit)
{
var orderByValueNode =
context.Argument <IValueNode>(SortObjectFieldDescriptorExtensions.OrderByArgumentName);
if (orderByValueNode != null)
{
queryableSortVisitor = new QueryableSortVisitor(iot, fit.EntityType);
orderByValueNode.Accept(queryableSortVisitor);
}
}
return(queryableSortVisitor);
}
