firstWhere<T extends Model> static method

Implementation

static Future<T?> firstWhere<T extends Model>({
  required String field,
  String comp = "==",
  dynamic value,
}) async {
  final constructor = _jsonConstructors[T];
  if (constructor == null) return null;

  try {
    final records = await jsonIndex<T>();
    final record = records.firstWhereOrNull((r) {
      final fieldValue = r[field];
      switch (comp) {
        case "==":
          return fieldValue == value;
        case "!=":
          return fieldValue != value;
        case ">":
          return fieldValue is num && fieldValue > value;
        case "<":
          return fieldValue is num && fieldValue < value;
        case ">=":
          return fieldValue is num && fieldValue >= value;
        case "<=":
          return fieldValue is num && fieldValue <= value;
        default:
          return false;
      }
    });
    if (record == null) return null;
    return constructor(record) as T;
  } catch (e) {
    return null;
  }
}