コード例 #1
0
        private static BeachEntity CloneBeach(SandboxContext context, BeachEntity original)
        {
            var cloned      = new BeachEntity();
            var cloneValues = context.Entry(original).CurrentValues.Clone();

            context.Entry(cloned).CurrentValues.SetValues(cloneValues);
            cloned.InternalId = 0;
            cloned.Id         = Guid.NewGuid();

            cloned.Grains = original.Grains.Select(d => CloneGrain(context, d)).ToList();
            return(cloned);
        }
コード例 #2
0
 private static void WriteBeach(BeachEntity beach)
 {
     System.Console.WriteLine();
     System.Console.WriteLine($" BEACH ADDED");
     System.Console.WriteLine($" Internal ID:  {beach.InternalId}");
     System.Console.WriteLine($" Primary Key:  {beach.Id}");
     System.Console.WriteLine($" Created Date: {beach.CreatedDate.ToString("s")}");
     foreach (var grain in beach.Grains)
     {
         WriteSandGrain(grain);
     }
     System.Console.WriteLine();
 }
コード例 #3
0
        static void Main(string[] args)
        {
            var inMemoryContextOptions = new DbContextOptionsBuilder <SandboxContext>()
                                         .UseInMemoryDatabase(databaseName: "Test")
                                         .Options;

            using (var context = new SandboxContext(inMemoryContextOptions))
            {
                var beach = new BeachEntity();
                beach.Id = Guid.NewGuid();

                for (int i = 0; i < 5; i++)
                {
                    var grain = new SandGrainEntity
                    {
                        CreatedDate = DateTime.UtcNow,
                        Id          = Guid.NewGuid()
                    };
                    beach.Grains.Add(grain);
                }

                context.Database.EnsureCreated();
                context.Beaches.Add(beach);
                int savedCount = context.SaveChanges();

                System.Console.WriteLine();
                System.Console.WriteLine($"Created {savedCount} new entries.");
                System.Console.WriteLine();

                WriteBeach(beach);

                BeachEntity clonedBeach = CloneBeach(context, beach);
                context.Beaches.Add(clonedBeach);

                savedCount = context.SaveChanges();
                System.Console.WriteLine();
                System.Console.WriteLine($"Created {savedCount} new entries.");
                System.Console.WriteLine();
                WriteBeach(clonedBeach);
            }
        }