private void Process(FetchRequestBase resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree, HqlDot memberPath, IType propType)
{
if (resultOperator is FetchOneRequest)
{
if (propType == null)
{
var metadata = queryModelVisitor.VisitorParameters.SessionFactory
.GetClassMetadata(resultOperator.RelationMember.ReflectedType);
propType = metadata?.GetPropertyType(resultOperator.RelationMember.Name);
}
if (propType != null && !propType.IsAssociationType)
{
tree.AddFromLastChildClause(tree.TreeBuilder.Fetch());
tree.AddFromLastChildClause(memberPath);
ComponentType componentType = null;
foreach (var innerFetch in resultOperator.InnerFetchRequests)
{
if (componentType == null)
{
componentType = propType as ComponentType;
if (componentType == null)
{
throw new InvalidOperationException(
$"Property {innerFetch.RelationMember.Name} cannot be fetched from a non component type property {resultOperator.RelationMember.Name}.");
}
}
var subTypeIndex = componentType.GetPropertyIndex(innerFetch.RelationMember.Name);
memberPath = tree.TreeBuilder.Dot(
memberPath,
tree.TreeBuilder.Ident(innerFetch.RelationMember.Name));
Process(innerFetch, queryModelVisitor, tree, memberPath, componentType.Subtypes[subTypeIndex]);
}
return;
}
}
var alias = queryModelVisitor.Model.GetNewName("_");
tree.AddFromClause(tree.TreeBuilder.LeftFetchJoin(memberPath, tree.TreeBuilder.Alias(alias)));
tree.AddDistinctRootOperator();
foreach (var innerFetch in resultOperator.InnerFetchRequests)
{
Process(innerFetch, queryModelVisitor, tree, alias);
}
}
public void Process(FetchLazyPropertiesResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
tree.AddFromLastChildClause(tree.TreeBuilder.Fetch());
}
