Correction de toutes les erreurs de relations et d'écritures dans tous

PyroFetes/Models/ShowStaff.cs

@@ -0,0 +1,14 @@
+using System.ComponentModel.DataAnnotations;
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(StaffId), nameof(ShowId))]
+public class ShowStaff
+{
+    public Staff? Staff { get; set; }
+    [Required] public int StaffId { get; set; }
+
+    public Show? Show { get; set; }
+    [Required] public int ShowId { get; set; }
+}