dynamicValidate static method

dynamic dynamicValidate({ required dynamic text, required dynamic fieldname, required int minLength, required int maxLength, required bool mandatory, required dynamic regex, required bool fromdropdown, required bool fromTextfield, })

Implementation

static dynamic dynamicValidate(
    {required dynamic text,
    required dynamic fieldname,
    required int minLength,
    required int maxLength,
    required bool mandatory,
    required dynamic regex,
    required bool fromdropdown,
    required bool fromTextfield}) {
  fieldname = fieldname?.toString().trim() ?? '';
  final trimmedText = text?.toString().trim();

  bool initCondition = trimmedText != null &&
      trimmedText.isNotEmpty &&
      (fromdropdown
          ? text != ConstantName.dropDownSelect
              ? true
              : false
          : true);

  if (mandatory) {
    if (initCondition) {
      if (fromTextfield &&
          ((minLength != 0 && trimmedText.length < minLength) ||
              (maxLength != 0 && trimmedText.length > maxLength))) {
        return "Please enter a valid $fieldname";
      }

      if (RegExp(regex).hasMatch(trimmedText)) {
        return null;
      } else {
        return "Please enter a valid $fieldname";
      }
    }
    return "Please enter the $fieldname";
  } else if (initCondition) {
    if (fromTextfield &&
        ((minLength != 0 && trimmedText.length < minLength) ||
            (maxLength != 0 && trimmedText.length > maxLength))) {
      return "Please enter a valid $fieldname";
    }

    if (RegExp(regex).hasMatch(trimmedText)) {
      return null;
    } else {
      return "Please enter a valid $fieldname";
    }
  }
}