private object ObtainPrimaryKeyValue(Castle.ActiveRecord.Model model, CompositeNode node, String prefix, out KeyValuePair <string, IType> pkModel)
{
pkModel = ObtainPrimaryKey(model);
var pkPropName = pkModel.Key;
var idNode = node.GetChildNode(pkPropName);
if (idNode == null)
{
return(null);
}
if (idNode != null && idNode.NodeType != NodeType.Leaf)
{
throw new BindingException("Expecting leaf node to contain id for ActiveRecord class. " +
"Prefix: {0} PK Property Name: {1}", prefix, pkPropName);
}
var lNode = (LeafNode)idNode;
if (lNode == null)
{
throw new BindingException("ARDataBinder autoload failed as element {0} " +
"doesn't have a primary key {1} value", prefix, pkPropName);
}
bool conversionSuc;
return(Converter.Convert(pkModel.Value.ReturnedClass, lNode.ValueType, lNode.Value, out conversionSuc));
}
private object LoadActiveRecord(Type type, object pk, ARFetchAttribute attr, Castle.ActiveRecord.Model model)
{
object instance = null;
if (pk != null && !String.Empty.Equals(pk))
{
var pkModel = ObtainPrimaryKey(model);
var pkType = pkModel.Value.ReturnedClass;
bool conversionSucceeded;
var convertedPk = _converter.Convert(pkType, pk.GetType(), pk, out conversionSucceeded);
if (!conversionSucceeded)
{
throw new ActiveRecordException(string.Format("ARFetcher could not convert PK {0} to type {1}", pk, pkType));
}
if (string.IsNullOrEmpty(attr.Eager))
{
// simple load
instance = attr.Required
? AR.Find(type, convertedPk)
: AR.Peek(type, convertedPk);
}
else
{
// load using eager fetching of lazy collections
var criteria = DetachedCriteria.For(type);
criteria.Add(Expression.Eq(pkModel.Key, convertedPk));
foreach (var associationToEagerFetch in attr.Eager.Split(','))
{
var clean = associationToEagerFetch.Trim();
if (clean.Length == 0)
{
continue;
}
criteria.SetFetchMode(clean, FetchMode.Eager);
}
var result = AR.Execute(type, s => criteria.GetExecutableCriteria(s).List());
if (result.Count > 0)
{
instance = result[0];
}
}
}
if (instance == null && attr.Create)
{
instance = Activator.CreateInstance(type);
}
return(instance);
}
private static KeyValuePair <string, IType> ObtainPrimaryKey(Castle.ActiveRecord.Model model)
{
if (model.Metadata.IsInherited)
{
var parent = AR.Holder.GetModel(model.Type.BaseType);
return(ObtainPrimaryKey(parent));
}
return(model.PrimaryKey);
}
protected bool IsBelongsToRef(Castle.ActiveRecord.Model arModel, string prefix)
{
if (arModel.BelongsTos.ContainsKey(prefix))
{
return(true);
}
if (arModel.Metadata.IsInherited)
{
var parentmodel = AR.Holder.GetModel(arModel.Type.BaseType);
return(IsBelongsToRef(parentmodel, prefix));
}
return(false);
}
protected bool FindPropertyInHasMany(Castle.ActiveRecord.Model model, string propertyName,
ref Type foundType, ref Castle.ActiveRecord.Model foundModel)
{
foreach (var hasManyModel in model.HasManys)
{
// Inverse=true relations will be ignored
if (hasManyModel.Key == propertyName && !hasManyModel.Value.Persister.IsInverse)
{
foundType = hasManyModel.Value.Persister.ElementType.ReturnedClass;
foundModel = AR.Holder.GetModel(foundType);
return(true);
}
}
if (model.Metadata.IsInherited)
{
var basemodel = AR.Holder.GetModel(model.Type.BaseType);
return(FindPropertyInHasMany(basemodel, propertyName, ref foundType, ref foundModel));
}
return(false);
}
public virtual Model GetModel(Type type)
{
type = GetNonProxyType(type);
return Type2SessFactory.ContainsKey(type)
? Type2Model.GetOrAdd(type, t => {
var sf = GetSessionFactory(t);
var model = new Model(sf, type);
return model;
})
: null;
}
protected override object BindSpecialObjectInstance(Type instanceType, string prefix, Node node,
out bool succeeded)
{
succeeded = false;
var model = CurrentARModel;
if (model == null)
{
return(null);
}
var container = CreateContainer(instanceType);
Type targetType = null;
Castle.ActiveRecord.Model targetModel = null;
var found = FindPropertyInHasAndBelongsToMany(model, prefix, ref targetType, ref targetModel);
if (!found)
{
found = FindPropertyInHasMany(model, prefix, ref targetType, ref targetModel);
}
if (found)
{
succeeded = true;
ClearContainer(container);
if (node.NodeType == NodeType.Indexed)
{
var indexNode = (IndexedNode)node;
var collArray = Array.CreateInstance(targetType, indexNode.ChildrenCount);
collArray = (Array)InternalBindObject(collArray.GetType(), prefix, node);
foreach (var item in collArray)
{
AddToContainer(container, item);
}
}
else if (node.NodeType == NodeType.Leaf)
{
var pkModel = targetModel.PrimaryKey;
var pkType = pkModel.Value.ReturnedClass;
var leafNode = (LeafNode)node;
bool convSucceeded;
if (leafNode.IsArray)
{
// Multiples values found
foreach (var element in (Array)leafNode.Value)
{
var keyConverted = Converter.Convert(pkType, leafNode.ValueType.GetElementType(), element, out convSucceeded);
if (convSucceeded)
{
var item = FindByPrimaryKey(targetType, keyConverted);
if (item != null)
{
AddToContainer(container, item);
}
}
}
}
else
{
// Single value found
var keyConverted = Converter.Convert(pkType, leafNode.ValueType.GetElementType(), leafNode.Value, out convSucceeded);
if (convSucceeded)
{
var item = FindByPrimaryKey(targetType, keyConverted);
AddToContainer(container, item);
}
}
}
}
return(container);
}
