models + fix DTO

PF3/Models/Sound.cs

@@ -0,0 +1,35 @@
+using System.ComponentModel.DataAnnotations;
+using PF3.Models;
+
+namespace PF3.Models;
+
+public class Sound
+{
+    [Key] public int Id { get; set; }
+
+    [Required, MaxLength(120)]
+    public string Name { get; set; } = null!;
+
+    [Required, MaxLength(60)]
+    public string? Type { get; set; }
+
+    [Required, MaxLength(120)]
+    public string? Artist { get; set; }
+
+    [Required, Range(0, int.MaxValue)]
+    public int? Duration { get; set; }
+
+    [Required, MaxLength(40)]
+    public string? Kind { get; set; }
+
+    [Required, MaxLength(40)]
+    public string? Format { get; set; }
+
+    public DateTime? CreationDate { get; set; }
+
+    [Required]
+    public int SoundCategoryId { get; set; }
+    public SoundCategory? Category { get; set; }
+
+    public ICollection<SoundTimecode> ShowPlacements { get; set; } = new List<SoundTimecode>();
+}