public CollectionValueProvider(CloneChangesHelper resolver,
MemberInfo member,
IValueProvider valueProvider)
{
_resolver = resolver;
_member = member;
_valueProvider = valueProvider;
}
/// <summary>
/// Get entities that have been added, modified or deleted, including child
/// collections with entities that have been added, modified or deleted.
/// </summary>
/// <returns>Collection containing only changed entities</returns>
public ChangeTrackingCollection <TEntity> GetChanges()
{
// Temporarily restore deletes
this.RestoreDeletes();
try
{
return(CloneChangesHelper.GetChanges(this));
}
finally
{
// Remove deletes
this.RemoveRestoredDeletes();
}
}
public static ChangeTrackingCollection <TEntity> GetChanges(ChangeTrackingCollection <TEntity> source)
{
var helper = new CloneChangesHelper();
var wrapper = new Wrapper()
{
Result = source
};
// Inspect the graph and collect entityChangedInfos
helper.GetChanges(Enumerable.Repeat(wrapper, 1)).ToList();
// Clone only changed items
var clone = TrackableExtensions.CloneObject(wrapper, helper);
return(clone.Result);
}
