validateFields static method

String? validateFields(String? value, ValidationType fieldType, BuildContext context, { String? errorMeassge, int passwordLength = 4, int phoneLength = 10, int codeLength = 4, })

Implementation

static String? validateFields(
  String? value,
  ValidationType fieldType,
  BuildContext context, {
  String? errorMeassge,
  int passwordLength = 4,
  int phoneLength = 10,
  int codeLength = 4,
}) {
  if (value == null) {
    return errorMeassge ?? "Field required";
  } else if (fieldType == ValidationType.email) {
    if (value.isEmpty) {
      return errorMeassge ?? "Email required";
    }
    if (!RegExp(r'\S+@\S+\.\S+').hasMatch(value)) {
      return errorMeassge ?? "It must be an email";
    }
  } else if (fieldType == ValidationType.password) {
    if (value.isEmpty) {
      return errorMeassge ?? "Password required";
    }
    if (value.length < passwordLength) {
      return errorMeassge ??
          "The password must be greater than or equal to $passwordLength";
    }
  } else if (fieldType == ValidationType.phone) {
    if (value.length != phoneLength) {
      return errorMeassge ?? "Field required";
    }
  } else if (fieldType == ValidationType.notEmpty) {
    if (value.trim().isEmpty || value.isEmpty) {
      return errorMeassge ?? "Field required";
    }
  } else if (fieldType == ValidationType.validationCode) {
    if (value.isEmpty || value.length != codeLength) {
      return errorMeassge ?? "Validate code";
    }
  }
  return null;
}