public static void Seed(ApplicationDbContext context) { if (!context.Engines.Any()) { context.Engines.AddRange(Engines.Select(c => c.Value)); } context.SaveChanges(); if (!context.Fuels.Any()) { context.Fuels.AddRange(Fuels.Select(c => c.Value)); } context.SaveChanges(); if (!context.Brands.Any()) { context.Brands.AddRange(Brands.Select(c => c.Value)); } context.SaveChanges(); if (!context.Cars.Any()) { context.Cars.AddRange(Cars.Select(c => c.Value)); } context.SaveChanges(); }