/// <summary>
/// Method is done as a cleanup, when a resource is deleted, this method will remove the deleted object from an entityInstance reference property
/// </summary>
/// <param name="targetResource">Resource to look for in the currentEntityInstance</param>
/// <param name="navigationPropertyInfo">NavigationProperty to look in on the currentEntityInstance</param>
/// <param name="currentEntityInstance">currentEntityInstance that may contain the targetResource</param>
private void SetEntityReferenceToNullOnTargetResourceMatch(object targetResource, NavigationPropertyInfo navigationPropertyInfo, object currentEntityInstance)
{
object childReferenceObject = navigationPropertyInfo.PropertyInfo.GetValue(currentEntityInstance, null);
if (childReferenceObject == targetResource)
{
this.pendingChanges.Add(() => navigationPropertyInfo.PropertyInfo.SetValue(currentEntityInstance, null, null));
}
}
/// <summary>
/// Method is done as a cleanup, when a resource is deleted, this method will remove the deleted object from an entityInstance collection property
/// </summary>
/// <param name="targetResource">Resource to look for in the currentEntityInstance</param>
/// <param name="navigationPropertyInfo">NavigationProperty to look in on the currentEntityInstance</param>
/// <param name="currentEntityInstance">currentEntityInstance that may contain the targetResource</param>
private void RemoveResourceFromCollectionOnTargetResourceMatch(object targetResource, NavigationPropertyInfo navigationPropertyInfo, object currentEntityInstance)
{
IEnumerable childCollectionObject = navigationPropertyInfo.PropertyInfo.GetValue(currentEntityInstance, null) as IEnumerable;
if (childCollectionObject.Cast <object>().Any(o => o == targetResource))
{
MethodInfo removeMethod = navigationPropertyInfo.PropertyInfo.PropertyType.GetMethod("Remove");
this.pendingChanges.Add(() => removeMethod.Invoke(childCollectionObject, new object[] { targetResource }));
}
}
