refactor: specify CultureInfo when parsing DateOnly and added AttributeUsage to ValidDateOnlyAttribute

Author: alex-clayton-1

src/ServiceLayer.API/Functions/BSSelectFunctions.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Globalization;
 using System.Text.Json;
 using Azure.Messaging;
 using Azure.Messaging.EventGrid;
@@ -46,7 +47,7 @@ public async Task<IActionResult> IngressEpisode([HttpTrigger(AuthorizationLevel.
                 PathwayTypeName = "Breast Screening Routine",
                 ScreeningName = "Breast Screening",
                 NhsNumber = bssEpisodeEvent.NhsNumber!,
-                DOB = DateOnly.Parse(bssEpisodeEvent.DateOfBirth!),
+                DOB = DateOnly.Parse(bssEpisodeEvent.DateOfBirth!, CultureInfo.CurrentCulture),
                 Name = $"{bssEpisodeEvent.FirstGivenName} {bssEpisodeEvent.FamilyName}",
             };
 

src/ServiceLayer.API/Shared/ValidDateOnlyAttribute.cs

@@ -1,12 +1,14 @@
 using System.ComponentModel.DataAnnotations;
+using System.Globalization;
 
 namespace ServiceLayer.API.Shared;
 
+[AttributeUsage(AttributeTargets.Property)]
 public class ValidDateOnlyAttribute : ValidationAttribute
 {
     public override bool IsValid(object? value)
     {
-        if (value is string s && DateOnly.TryParse(s, out _))
+        if (value is string s && DateOnly.TryParse(s, CultureInfo.CurrentCulture, out _))
         {
             return true;
         }