check static method

dynamic check({ required Map<String, String> rules, required Map<String, dynamic> data, Map<String, dynamic> messages = const {}, bool showAlert = true, Duration? alertDuration, ToastNotificationStyleType alertStyle = ToastNotificationStyleType.warning, BuildContext? context, })

NyValidator provides an easy way to validate data. You can use this method like in the example below: try { NyValidator.check(rules: { "email": "email|max:20", "name": "min:10" }, data: { "email": _textEditingEmailController.text, "name": _textEditingNameController.text });

} on ValidationException catch (e) { print(e.validationRule.description); print(e.toString()); } See more https://nylo.dev/docs/6.x/validation

Implementation

static check(
    {required Map<String, String> rules,
    required Map<String, dynamic> data,
    Map<String, dynamic> messages = const {},
    bool showAlert = true,
    Duration? alertDuration,
    ToastNotificationStyleType alertStyle =
        ToastNotificationStyleType.warning,
    BuildContext? context}) {
  Map<String, Map<String, dynamic>> map = data.map((key, value) {
    if (!rules.containsKey(key)) {
      throw Exception('Missing rule: $key');
    }
    Map<String, dynamic> tmp = {"data": value, "rule": rules[key]};
    if (messages.containsKey(key)) {
      tmp.addAll({"message": messages[key]});
    }
    return MapEntry(key, tmp);
  });

  Nylo nylo = Backpack.instance.nylo();

  Map<String, dynamic> allValidationRules = {};
  allValidationRules.addAll(nylo.getValidationRules());
  allValidationRules.addAll(nyDefaultValidations);

  for (int i = 0; i < map.length; i++) {
    String attribute = map.keys.toList()[i];
    Map<String, dynamic> info = map[attribute]!;

    dynamic data = info['data'];

    String rule = info['rule'];
    List<String> rules = rule.split("|").toList();

    if (rule.contains("nullable") && (data == null || data == "")) {
      continue;
    }

    for (rule in rules) {
      String ruleQuery = rule;
      if (ruleQuery.contains(":")) {
        String firstSection = ruleQuery.split(":").first;
        ruleQuery = firstSection;
      }

      MapEntry<String, dynamic>? validationRuleMapEntry =
          allValidationRules.entries.firstWhereOrNull(
              (nyDefaultValidation) => nyDefaultValidation.key == ruleQuery);
      if (validationRuleMapEntry == null) continue;

      ValidationRule? validationRule =
          validationRuleMapEntry.value(attribute);
      if (validationRule == null) continue;

      bool didNotFail = validationRule.handle(info);

      if (didNotFail == true) continue;

      if (showAlert == true && context != null) {
        validationRule.alert(
          context,
          style: alertStyle,
          duration: alertDuration,
        );
      }
      throw ValidationException(attribute, validationRule);
    }
  }
}