private void ConnectEntities(ObjectRelation relation, object child, object parent)
{
if (child == null || parent == null)
{
return;
}
if (relation.HasChildProperty)
{
MapParentPropertyForChild(relation, child, parent);
}
if (relation.HasParentProperty)
{
MapChildCollectionForParent(relation, child, parent);
}
}
private CreatedEntity CreateInstanceGraph(Type resultType, Row row, ObjectRelation relation, EntityCache entityCache, string primaryAlias)
{
var childType = relation.ChildType;
var parentType = relation.ParentType;
var child = CreateInstance(childType, row, entityCache, relation.ChildAlias);
var parent = CreateInstance(parentType, row, entityCache, relation.ParentAlias);
ConnectEntities(relation, child, parent);
if (Matches(relation.ChildAlias, primaryAlias))
{
return(CreatedEntity.Primary(child));
}
if (Matches(relation.ParentAlias, primaryAlias))
{
return(CreatedEntity.Primary(parent));
}
return(resultType == childType?CreatedEntity.Ordinary(child) : CreatedEntity.Ordinary(parent));
}
private void MapChildCollectionForParent(ObjectRelation relation, object child, object parent)
{
var parentsChildCollection = (IList)relation.ParentProperty.GetValue(parent, null);
if (parentsChildCollection == null)
{
var list = Reflector.CreateGenericList(child.GetType());
parentsChildCollection = list;
relation.ParentProperty.SetValue(parent, list, null);
}
var comparer = GetEqualityComparer <object>(child.GetType());
var parentCollectionContainsChild = parentsChildCollection
.OfType <object>()
.Contains(child, comparer);
if (!parentCollectionContainsChild)
{
parentsChildCollection.Add(child);
}
}
public T CreateInstanceGraph <T>(Row row, ObjectRelation relation)
{
return(CreateInstanceGraph <T>(row, new[] { relation }));
}
private static void MapParentPropertyForChild(ObjectRelation relation, object child, object parent)
{
relation.ChildProperty.SetValue(child, parent, null);
}
public IList <T> CreateInstanceGraphs <T>(ResultSet resultSet, ObjectRelation parentChildRelation)
{
return(CreateInstanceGraphs <T>(resultSet, new[] { parentChildRelation }));
}