private void CreateOrChangeContentLang(SiteContainer context, Category instance, Category cache, Language lang) { CategoryLang contenttLang = null; if (cache != null) { contenttLang = context.CategoryLang.FirstOrDefault(p => p.CategoryId == cache.Id && p.LanguageId == lang.Id); } if (contenttLang == null) { var newPostLang = new CategoryLang { CategoryId = instance.Id, LanguageId = lang.Id, Title = instance.Title, }; context.AddToCategoryLang(newPostLang); } else { contenttLang.Title = instance.Title; } context.SaveChanges(); }