private ChangedRelationShip <TKey> BuildChangeRelationshipTemplate(IChangeTrackable <TKey> parent, PropertyInfo propertyInfo)
{
OwnershipActions ownershipActions = null;
var key = new Tuple <Type, PropertyInfo>(parent.GetType(), propertyInfo);
_ownerMappings.TryGetValue(key, out ownershipActions);
return(new ChangedRelationShip <TKey>(parent, propertyInfo, ownershipActions));
}
/// <summary>
/// By adding an owner mapping you will be changing how elements get flagged.
/// By being the owner the parent object in the tree can flag sub properties as added, removed or deleted
/// </summary>
public ChangeAssessor <TKey> AddOwnerMapping <T>(Expression <Func <T, object> > property, bool add = true, bool update = true, bool delete = true) where T : class
{
var propertyInfo = ResolvePropertyInfo <T>(property);
OwnershipActions ownershipActions = null;
var key = new Tuple <Type, PropertyInfo>(typeof(T), propertyInfo);
if (!_ownerMappings.TryGetValue(key, out ownershipActions))
{
ownershipActions = new OwnershipActions()
{
Add = add,
Delete = delete,
Update = update
};
_ownerMappings.Add(key, ownershipActions);
}
return(this);
}
public ChangedRelationShip(IChangeTrackable <TKey> parent, PropertyInfo property, OwnershipActions ownershipActions)
{
Parent = parent;
Property = property;
OwnershipActions = ownershipActions ?? new OwnershipActions();
}