Añadido modelo Prize

1 files changed, 21 insertions, 0 deletions

diff --git a/Validations/UniqueTier.cs b/Validations/UniqueTier.cs
new file mode 100644
index 0000000..c91db1c
--- /dev/null
+++ b/Validations/UniqueTier.cs
@@ -0,0 +1,21 @@
+using System.ComponentModel.DataAnnotations;
+using BackendPIA.Models;
+using BackendPIA.Forms;
+
+namespace BackendPIA.Validations {
+    public class UniqueTier : ValidationAttribute {
+        public string GetErrorMessage(object? value) {
+          return $"The given raffle already has a {value}-Tier.";
+        }
+
+        protected override ValidationResult? IsValid(object? value, ValidationContext validationContext) {
+            var prize = (PrizeForm) validationContext.ObjectInstance;
+            var db_context = (ApplicationDbContext) validationContext.GetService(typeof(ApplicationDbContext));
+
+            if(db_context.Prizes.Where(p => p.RaffleId == prize.RaffleId).Where(p => p.Tier == (int) value).Any()) 
+                return new ValidationResult(GetErrorMessage(value));
+            
+            return ValidationResult.Success;
+        }
+    }
+}
\ No newline at end of file