public ActionResult Edit(Publisher publisher) {
     if (ModelState.IsValid) {
         db.Entry(publisher).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(publisher);
 }
        public bool Create(Publisher publisher) {
            if (ModelState.IsValid) {
                db.Publishers.Add(publisher);
                db.SaveChanges();
            }

            return true;
        }