First table in database

GerbilManagerWebAPI/ApplicationContext.cs

@@ -1,12 +1,27 @@
 using GerbilManagerWebAPI.Models;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 
 public class ApplicationContext : DbContext
 {
     public ApplicationContext(DbContextOptions options)
-        :base(options)
+        : base(options)
     {
     }
     public DbSet<Gerbil> Gerbils { get; set; }
+    public DbSet<Litter> Litters { get; set; }
+    public DbSet<Breeder> Breeders { get; set; }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Gerbil>().HasOne(entity => entity.Litter);
+        modelBuilder.Entity<Litter>().HasOne(entity => entity.Father);
+        modelBuilder.Entity<Litter>().HasOne(entity => entity.Mother);
+
+        modelBuilder
+        .Entity<Gerbil>()
+        .Property(d => d.Gender)
+        .HasConversion(new EnumToStringConverter<Gender>());
+    }
 }