public Details Insert(Details advert)
        {
            if (context.CarDetails.Any(i => i.AdId == advert.AdId))
            {
                return(null);
            }
            ;

            advert.Inserted = DateTime.Now;
            context.Add(advert);
            return(advert);
        }
        public Features Insert(Features advert)
        {
            //context.CarFeatures
            if (context.CarFeatures.Any(i => i.AdvertId == advert.AdvertId))
            {
                return(null);
            }
            ;

            advert.Inserted = DateTime.Now;
            context.Add(advert);
            return(advert);
        }
 public Schema Insert(Schema topic)
 {
     topic.Inserted = DateTime.Now;
     context.Add(topic);
     return(topic);
 }