public override object MapProperty(NodeMappingContext context)
{
int?id = null;
// Get ID
if (AllowCaching &&
Engine.CacheProvider != null &&
Engine.CacheProvider.ContainsPropertyValue(context.Id, DestinationInfo.Name))
{
id = Engine.CacheProvider.GetPropertyValue(context.Id, DestinationInfo.Name) as int?;
}
else
{
var node = context.GetNode();
if (node == null || string.IsNullOrEmpty(node.Name))
{
throw new InvalidOperationException("Node cannot be null or empty");
}
if (string.IsNullOrEmpty(SourcePropertyAlias))
{
// Get closest parent
var aliases = Engine
.GetCompatibleNodeTypeAliases(DestinationInfo.PropertyType)
.ToArray();
var ancestorNode = node.Ancestors()
.FirstOrDefault(x => aliases.Contains(x.DocumentTypeAlias));
if (ancestorNode != null)
{
// Found one
id = ancestorNode.Id;
context.AddNodeToContextCache(ancestorNode);
}
if (_mapping != null)
{
id = _mapping(context, id);
}
}
else
{
if (_mapping == null)
{
// Map ID from node property
id = GetSourcePropertyValue <int?>(node);
}
else
{
// Custom mapping
id = _mapping(context, GetSourcePropertyValue(node, _sourcePropertyType));
}
}
if (AllowCaching &&
Engine.CacheProvider != null)
{
Engine.CacheProvider.InsertPropertyValue(context.Id, DestinationInfo.Name, id);
}
}
if (!id.HasValue)
{
// Not found
return(null);
}
// Map to model
var childPaths = GetNextLevelPaths(context.Paths);
var childContext = new NodeMappingContext(id.Value, childPaths, context);
return(Engine.Map(childContext, DestinationInfo.PropertyType));
}
public override object MapProperty(NodeMappingContext context)
{
int? id = null;
// Get ID
if (AllowCaching
&& Engine.CacheProvider != null
&& Engine.CacheProvider.ContainsPropertyValue(context.Id, DestinationInfo.Name))
{
id = Engine.CacheProvider.GetPropertyValue(context.Id, DestinationInfo.Name) as int?;
}
else
{
var node = context.GetNode();
if (node == null || string.IsNullOrEmpty(node.Name))
{
throw new InvalidOperationException("Node cannot be null or empty");
}
if (string.IsNullOrEmpty(SourcePropertyAlias))
{
// Get closest parent
var aliases = Engine
.GetCompatibleNodeTypeAliases(DestinationInfo.PropertyType)
.ToArray();
var ancestorNode = node.Ancestors()
.FirstOrDefault(x => aliases.Contains(x.DocumentTypeAlias));
if (ancestorNode != null)
{
// Found one
id = ancestorNode.Id;
context.AddNodeToContextCache(ancestorNode);
}
if (_mapping != null)
{
id = _mapping(context, id);
}
}
else
{
if (_mapping == null)
{
// Map ID from node property
id = GetSourcePropertyValue<int?>(node);
}
else
{
// Custom mapping
id = _mapping(context, GetSourcePropertyValue(node, _sourcePropertyType));
}
}
if (AllowCaching
&& Engine.CacheProvider != null)
{
Engine.CacheProvider.InsertPropertyValue(context.Id, DestinationInfo.Name, id);
}
}
if (!id.HasValue)
{
// Not found
return null;
}
// Map to model
var childPaths = GetNextLevelPaths(context.Paths);
var childContext = new NodeMappingContext(id.Value, childPaths, context);
return Engine.Map(childContext, DestinationInfo.PropertyType);
}
public override object MapProperty(NodeMappingContext context)
{
IEnumerable <int> ids = null;
// Get IDs
if (AllowCaching &&
Engine.CacheProvider != null &&
Engine.CacheProvider.ContainsPropertyValue(context.Id, DestinationInfo.Name))
{
ids = Engine.CacheProvider.GetPropertyValue(context.Id, DestinationInfo.Name) as int[];
}
else
{
var node = context.GetNode();
if (node == null || string.IsNullOrEmpty(node.Name))
{
throw new InvalidOperationException("Node cannot be null or empty");
}
if (string.IsNullOrEmpty(SourcePropertyAlias))
{
// Get compatible descendants
var aliases = Engine.GetCompatibleNodeTypeAliases(_elementType);
var nodes = aliases.SelectMany(alias => node.GetDescendantNodesByType(alias));
// Might as well store the nodes if we're creating them
foreach (var n in nodes)
{
context.AddNodeToContextCache(n);
}
ids = nodes.Select(n => n.Id);
if (_mapping != null)
{
ids = _mapping(context, ids);
}
}
else
{
if (_mapping == null)
{
// Maps IDs from node property
ids = GetSourcePropertyValue <IEnumerable <int> >(node);
}
else
{
// Custom mapping
ids = _mapping(context, GetSourcePropertyValue(node, _sourcePropertyType));
}
}
}
if (_elementType == typeof(int))
{
// Map ID collection
return(_canAssignDirectly
? ids
: Activator.CreateInstance(DestinationInfo.PropertyType, ids));
}
// Map model collection
var childPaths = GetNextLevelPaths(context.Paths);
var sourceListType = typeof(List <>).MakeGenericType(_elementType);
var mappedCollection = Activator.CreateInstance(sourceListType);
var missingIds = new List <int>();
foreach (var id in ids)
{
var childContext = new NodeMappingContext(id, childPaths, context);
var mappedElement = Engine.Map(childContext, _elementType);
if (mappedElement == null)
{
// ID does not exist
missingIds.Add(id);
}
else
{
// Like "items.Add(item)" but for generic list
sourceListType.InvokeMember("Add", BindingFlags.InvokeMethod, null, mappedCollection, new object[] { mappedElement });
}
}
if (AllowCaching &&
Engine.CacheProvider != null)
{
Engine.CacheProvider.InsertPropertyValue(context.Id, DestinationInfo.Name, ids.Except(missingIds).ToArray());
}
return(_canAssignDirectly
? mappedCollection
: Activator.CreateInstance(DestinationInfo.PropertyType, mappedCollection));
}