add unique constraint on award shortname, and add some constraints an…

…d nullability override for user username/normalized username and role name

TASVideos.Data/ApplicationDbContext.cs

@@ -183,6 +183,11 @@ protected override void OnModelCreating(ModelBuilder builder)
 			builder.HasPostgresExtension("pg_trgm");
 		}
 
+		builder.Entity<Award>(entity =>
+		{
+			entity.HasIndex(e => e.ShortName).IsUnique();
+		});
+
 		builder.Entity<User>(entity =>
 		{
 			entity.HasIndex(e => e.NormalizedUserName).IsUnique();

TASVideos.Data/Entity/Role.cs

@@ -4,6 +4,13 @@ namespace TASVideos.Data.Entity;
 
 public class Role : IdentityRole<int>, ITrackable
 {
+	[StringLength(50)]
+	public new string Name
+	{
+		get => base.Name!;
+		set => base.Name = value;
+	}
+
 	/// <summary>
 	/// Gets or sets a value indicating whether the role is automatically assigned to new users.
 	/// </summary>

TASVideos.Data/Entity/User.cs

@@ -9,6 +9,20 @@ public enum UserPreference
 
 public class User : IdentityUser<int>, ITrackable
 {
+	[StringLength(50)]
+	public new string UserName
+	{
+		get => base.UserName!;
+		set => base.UserName = value;
+	}
+
+	[StringLength(50)]
+	public new string NormalizedUserName
+	{
+		get => base.NormalizedUserName!;
+		set => base.NormalizedUserName = value;
+	}
+
 	public DateTime? LastLoggedInTimeStamp { get; set; }
 
 	[Required]