public virtual object ExecuteLinqCommand(LinqCommand command, bool withIncludes = true)
{
try {
var result = _dataSource.ExecuteLinqCommand(this, command);
switch (command.Operation)
{
case LinqOperation.Select:
Context.App.AppEvents.OnExecutedSelect(this, command);
if (withIncludes && (command.Includes?.Count > 0 || Context.HasIncludes()))
{
IncludeProcessor.RunIncludeQueries(command, result);
}
//Util.Throw("Include processor disabled.");
break;
default:
Context.App.AppEvents.OnExecutedNonQuery(this, command);
NextTransactionId = Guid.NewGuid();
break;
}
return(result);
} catch (Exception ex) {
ex.AddValue("entity-command", command + string.Empty);
ex.AddValue("parameters", command.ParamValues);
throw;
}
}
//TODO: test and fix the following:
// Includes - when including child list, the list initialized only if it's not empty;
// if empty, it remains uninitialized, and on touch fwk fires select query with 0 results
// Initially found in some external solution, seemed to be broken, but now maybe working. Needs to be retested!
internal static void RunIncludeQueries(LinqCommand command, object mainQueryResult)
{
// initial checks if there's anything to run
if (mainQueryResult == null)
{
return;
}
var session = command.Session;
var allIncludes = session.Context.GetMergedIncludes(command.Includes);
if (allIncludes == null || allIncludes.Count == 0)
{
return;
}
var resultShape = GetResultShape(session.Context.App.Model, mainQueryResult.GetType());
if (resultShape == QueryResultShape.Object)
{
return;
}
// Get records from query result
var records = new List <EntityRecord>();
switch (resultShape)
{
case QueryResultShape.Entity:
records.Add(EntityHelper.GetRecord(mainQueryResult));
break;
case QueryResultShape.EntityList:
var list = mainQueryResult as IList;
if (list.Count == 0)
{
return;
}
foreach (var ent in list)
{
records.Add(EntityHelper.GetRecord(ent));
}
break;
}//switch;
// actually run the includes
var entityType = records[0].EntityInfo.EntityType;
var helper = new IncludeProcessor(session, allIncludes);
session.LogMessage("------- Running include queries ----------");
helper.RunIncludeQueries(entityType, records);
session.LogMessage("------- Completed include queries ----------");
}