private static ProcessingResult LoadData(ProcessingResult result, Type dataType)
{
if (!result.IsSuccess)
{
return(ProcessingResult.Unsuccessful);
}
var loadedResult = result.IsSingleItem
? result.GetLoadedItem(dataType)
: result.GetLoadedItems(dataType);
return(new ProcessingResult(true, loadedResult, result.IsSingleItem));
}
internal static object ProcessQueries(NodeReference node, DataContext context, Expression queryExpression)
{
var queries = GetQueriesInTurn(queryExpression);
var nodes = DatabaseManager.GetEntitiesNodes(node, context);
var result = new ProcessingResult(true, nodes);
result = queries.Aggregate(result, (current, query) => ProcessQuery(query, current, context));
if (result.IsDeferred())
{
return(result.IsSingleItem
? result.GetLoadedItem(GetReturnParameterType(queries.Last()))
: result.GetLoadedItems(GetReturnParameterType(queries.Last())));
}
return(result.Result);
}