private void CreateOrChangeContentLang(SiteContainer context, BrandGroup instance, BrandGroup cache, Language lang)
        {

            BrandGroupLang contenttLang = null;
            if (cache != null)
            {
                contenttLang = context.BrandGroupLang.FirstOrDefault(p => p.BrandGroupId == cache.Id && p.LanguageId == lang.Id);
            }
            if (contenttLang == null)
            {
                var newPostLang = new BrandGroupLang
                {
                    BrandGroupId = instance.Id,
                    LanguageId = lang.Id,
                    Title = instance.Title,
                    Description = instance.Description
                };
                context.AddToBrandGroupLang(newPostLang);
            }
            else
            {
                contenttLang.Title = instance.Title;
                contenttLang.Description = instance.Description;
            }
            context.SaveChanges();

        }