validateInput static method

String? validateInput(String? value, bool required, String? requiredMessage, InputValidator? validator,)

Build common validator function for input fields

Implementation

static String? validateInput(
  String? value,
  bool required,
  String? requiredMessage,
  model.InputValidator? validator,
) {
  if (value == null || value.isEmpty) {
    return required
        ? Utils.translateWithFallback('ensemble.input.required',
            requiredMessage ?? 'This field is required')
        : null;
  }

  if (validator != null) {
    ValidationBuilder? builder;
    if (validator.minLength != null) {
      builder = ValidationBuilder().minLength(validator.minLength!,
          Utils.translateOrNull('ensemble.input.validation.minimumLength'));
    }
    if (validator.maxLength != null) {
      builder = (builder ?? ValidationBuilder()).maxLength(
          validator.maxLength!,
          Utils.translateOrNull('ensemble.input.validation.maximumLength'));
    }
    if (validator.regex != null) {
      builder = (builder ?? ValidationBuilder()).regExp(
          RegExp(validator.regex!),
          validator.regexError ??
              Utils.translateWithFallback(
                  'ensemble.input.validation.invalidInput',
                  'This field has invalid value'));
    }
    if (builder != null) {
      return builder.build().call(value);
    }
  }
  return null;
}