getRelationList<T> method

List<T> getRelationList<T>(String name)

Retrieves a list relation typed as T.

Returns an empty list if the relation hasn't been loaded. Returns the cached list if loaded (even if it's an empty list).

Example:

final posts = author.getRelationList<Post>('posts');

Implementation

List<T> getRelationList<T>(String name) {
  final relations = _relationValues[this];
  if (relations == null || !relations.containsKey(name)) {
    return const [];
  }
  final value = relations[name];
  if (value == null) {
    return const [];
  }
  if (value is List<T>) {
    return value;
  }
  if (value is Iterable<T>) {
    final list = List<T>.unmodifiable(value);
    relations[name] = list;
    return list;
  }
  if (value is Iterable) {
    final list = List<T>.unmodifiable(value.cast<T>());
    relations[name] = list;
    return list;
  }
  return const [];
}