示例#1
0
        public ActionResult Details(int?id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }

            var query = from a in db.Locations
                        from b in db.Events
                        where b.Id == id && a.ID == b.LocationId
                        join c in db.Monsters on b.MonsterId equals c.Id into C
                        from m in C.DefaultIfEmpty()
                        join i1 in db.Images on a.ImageId equals i1.ID into I1
                        from ia in I1.DefaultIfEmpty()
                        join i2 in db.Images on m.ImageId equals i2.ID into I2
                        from im in I2.DefaultIfEmpty()
                        select new DetailsEventViewModel
            {
                Event         = b,
                Location      = a,
                LocationImage = ia != null ? ia : null,
                Monster       = m != null ? m : null,
                MonsterImage  = im != null ? im : null
            };

            var oneEvent = query.FirstOrDefault();

            if (oneEvent == null)
            {
                return(HttpNotFound());
            }

            return(View(oneEvent));
        }