protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value == null)
{
return(null);
}
var nhsNumber = NotificationFieldFormattingHelper.FormatNhsNumberForModel(value.ToString());
var match = Regex.Match(nhsNumber, "^[0-9]+$");
if (!match.Success)
{
return(new ValidationResult(string.Format(ValidationMessages.NumberFormat, validationContext.DisplayName)));
}
else if (nhsNumber.Length != 10)
{
return(new ValidationResult(ValidationMessages.NhsNumberLength));
}
var monodigitNumbers = new List <string> {
"0000000000", "1111111111", "9999999999"
};
if (monodigitNumbers.Contains(nhsNumber))
{
return(new ValidationResult(ValidationMessages.NhsNumberMonodigit));
}
var firstDigit = nhsNumber.Substring(0, 1);
// Scotland uses different validation and has NHS numbers starting with 0, 1 and 2. 9 is a generally used test digit for NHS numbers.
var scottishAndTestDigits = new List <string> {
"0", "1", "2", "9"
};
if (scottishAndTestDigits.Contains(firstDigit))
{
return(null);
}
if (!ValidateNhsNumber(nhsNumber))
{
return(new ValidationResult(ValidationMessages.InvalidNhsNumber));
}
return(null);
}
public async Task <JsonResult> OnPostNhsNumberDuplicates([FromBody] NhsNumberValidationModel validationData)
{
var group = await NotificationRepository.GetNotificationGroupAsync(validationData.NotificationId);
return(new JsonResult(await GenerateDuplicateNhsNumberNotificationUrlsAsync(NotificationFieldFormattingHelper.FormatNhsNumberForModel(validationData.NhsNumber), group)));
}