Refactoring, database structure changed

WatchIt.Database/Configuration/Accounts/AccountBackgroundPictureConfiguration.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using WatchIt.Database.Model.Accounts;
+
+namespace WatchIt.Database.Configuration.Accounts;
+
+public class AccountBackgroundPictureConfiguration : IEntityTypeConfiguration<AccountBackgroundPicture>
+{
+    #region PUBLIC METHODS
+    
+    public void Configure(EntityTypeBuilder<AccountBackgroundPicture> builder)
+    {
+        builder.ToTable("AccountBackgroundPictures", "accounts");
+        
+        // Account
+        builder.HasKey(x => x.AccountId);
+        builder.HasIndex(x => x.AccountId)
+               .IsUnique();
+        builder.HasOne(x => x.Account)
+               .WithOne(x => x.BackgroundPicture)
+               .HasForeignKey<AccountBackgroundPicture>(x => x.AccountId)
+               .IsRequired();
+        builder.Property(x => x.AccountId)
+               .IsRequired();
+        
+        // Background
+        builder.HasOne(x => x.Background)
+               .WithMany(x => x.BackgroundUsages)
+               .HasForeignKey(x => x.BackgroundId)
+               .IsRequired();
+        builder.Property(x => x.BackgroundId)
+               .IsRequired();
+        
+        // Version
+        builder.Property(b => b.Version)
+               .IsRowVersion();
+    }
+    
+    #endregion
+}