public ActionResult Create(Institution user)
 {
     if (repo.AlreadyExists(user))
     {
         ModelState.AddModelError(nameof(user.Name), "Institution with such name already exists");
     }
     if (ModelState.IsValid)
     {
         repo.CreateInstitution(user);
         return(RedirectToAction("Index"));
     }
     return(View(user));
 }