/// <inheritdoc />
public HashSet <TResource> GetAffected(Expression <Func <TResource, object> > navigationAction)
{
ArgumentGuard.NotNull(navigationAction, nameof(navigationAction));
PropertyInfo property = HooksNavigationParser.ParseNavigationExpression(navigationAction);
return(this.Where(pair => pair.Key.Property.Name == property.Name).Select(pair => pair.Value).SingleOrDefault());
}
/// <inheritdoc />
public override HashSet <TResource> GetAffected(Expression <Func <TResource, object> > navigationAction)
{
ArgumentGuard.NotNull(navigationAction, nameof(navigationAction));
PropertyInfo propertyInfo = HooksNavigationParser.ParseNavigationExpression(navigationAction);
Type propertyType = propertyInfo.PropertyType;
if (propertyType.IsOrImplementsInterface(typeof(IEnumerable)))
{
propertyType = CollectionConverter.TryGetCollectionElementType(propertyType);
}
if (propertyType.IsOrImplementsInterface(typeof(IIdentifiable)))
{
// the navigation action references a relationship. Redirect the call to the relationship dictionary.
return(base.GetAffected(navigationAction));
}
return(_updatedAttributes.TryGetValue(propertyInfo, out HashSet <TResource> resources) ? resources : new HashSet <TResource>());
}
