public ActionResult Bid(Bid bid)
{
var db = new AuctionsDataContext();
var auction = db.Auctions.Find(bid.AuctionId);
if(auction == null) {
ModelState.AddModelError("ActionId", "Auction not found!");
} else if(auction.CurrentPrice >= bid.Amount){
ModelState.AddModelError("Amount", "Bid amount must exceed current bid");
} else {
bid.Username = User.Identity.Name;
auction.Bids.Add(bid);
auction.CurrentPrice = bid.Amount;
db.SaveChanges();
}
if(!Request.IsAjaxRequest())
return RedirectToAction("Auction", new {id = bid.AuctionId});
// Send JSOn response
return Json(new {
CurrentPrice = bid.Amount.ToString("C"),
BidCount = auction.BidCount
});
}
public ActionResult Bid(Bid bid)
{
var db = new AuctionsDataContext();
var auction = db.Auctions.Find(bid.AuctionId);
if (auction == null)
{
ModelState.AddModelError("AuctionId", "Auction not found!");
}
else if (auction.CurrentPrice >= bid.Amount)
{
ModelState.AddModelError("Amount", "Bid amount must exceed current bid");
}
else
{
bid.Username = User.Identity.Name;
auction.Bids.Add(bid);
auction.CurrentPrice = bid.Amount;
db.SaveChanges();
}
if (!Request.IsAjaxRequest())
return RedirectToAction("Auction", new { id = bid.AuctionId });
var httpStatus = ModelState.IsValid ? HttpStatusCode.OK : HttpStatusCode.BadRequest;
return new HttpStatusCodeResult(httpStatus);
}
public ActionResult Bid(Bid bid)
{
var db = new AuctionsDataContext();
var auction = db.Auctions.Find(bid.AuctionId);
//Checks to see if the auction exists first
if (auction == null)
{
ModelState.AddModelError("AuctionId", "Auction not found!");
}
//Checks to see whether the new bid is actually greater than the current price
else if (auction.CurrentPrice >= bid.Amount)
{
ModelState.AddModelError("Amount", "Bid amount must exceed current bid");
}
/*If there are no errors (model state is valid), then set bid.username to current user,
add bid, update current price, and save changes to db*/
else
{
bid.Username = User.Identity.Name;
auction.Bids.Add(bid);
auction.CurrentPrice = bid.Amount;
db.SaveChanges();
}
//Checks to see whether the request is Ajax or not. If it isn't an Ajax Request, the controller is free to return the redirect action
//If it is an Ajax request, the controller action should return an http status result that jQuery can analyze to see if the request was successful or not
if (!Request.IsAjaxRequest())
return RedirectToAction("Auction", new { id = bid.AuctionId });
/* This will be commented out because we are going to use the partial view method to update the CurrentPrice
//Uses httpStatus to check if the request was successful or not and display the appropriate message
var httpStatus = ModelState.IsValid ? HttpStatusCode.OK : HttpStatusCode.BadRequest;
return new HttpStatusCodeResult(httpStatus);
*/
//Uses PartialView helper to call the "_CurrentPrice" page after the Ajax Request
//This will be commented out to instead show how to use the JSON helper method to accomplish a similar function
/*
return PartialView("_CurrentPrice", auction);
*/
//Uses JSON helper method to update only the values that we want changed instead of calling a partial view to change the HTML
//I have added this if statement (not in lab!) to make sure the JSON doesn't update if there is an error in the modelstate
//If there is an error (auction not found/bid < current price), the Ajax method isn't posted successfully and an error is displayed
if (!ModelState.IsValid)
{
return RedirectToAction("Auction", bid.AuctionId);
}
else
{
return Json(new
{
CurrentPrice = bid.Amount.ToString("C"),
BidCount = auction.BidCount
});
}
}
public ActionResult Create([Bind(Exclude="CurrentPrice")]Models.Auction auction)
{
if (ModelState.IsValid)
{
//Saving inside database
var db = new AuctionsDataContext();
db.Auctions.Add(auction);
db.SaveChanges();
return RedirectToAction("Index");
}
return Create();
}
public ActionResult Bid(Bid bid)
{
var db = new AuctionsDataContext();
var auction = db.Auctions.Find(bid.AuctionId);
if (auction == null)
{
ModelState.AddModelError("AuctionId", "Auction not found!");
}
else if (auction.CurrentPrice >= bid.Amount)
{
ModelState.AddModelError("Amount", "New Bid should exceed the current price");
}
else
{
bid.UserName = User.Identity.Name;
auction.Bids.Add(bid);
auction.CurrentPrice = bid.Amount;
db.SaveChanges();
}
//return RedirectToAction("Auction", new { id = bid.AuctionId });
if (!Request.IsAjaxRequest()) // if not an ajax request, return norml return
return RedirectToAction("Auction", new { id = bid.AuctionId });
if (ModelState.IsValid)
{
return Json(new
{
CurrentPrice = bid.Amount.ToString("C"),
BidCount = auction.BidCount
});
}
else
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
/*
// to return a partial view
if (ModelState.IsValid)
return PartialView("_CurrentPricePartial", auction);
else
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
*/
/* this code is just only for response
// if ajax request sent an ajax response
var httpStatus = ModelState.IsValid ? HttpStatusCode.OK : HttpStatusCode.BadRequest;
return new HttpStatusCodeResult(httpStatus);
*/
}
public ActionResult Create([Bind(Exclude="CurrentPrice")]Models.Auction auction)
{
/*Now that we have created validation using Data Annotations, these validation statements will be commented out
//This IF statement makes sure a user enters the required title and throws an error if they don't
if (string.IsNullOrWhiteSpace(auction.Title))
{
//Adds a model error to the Model state. The parameters are the property name key and the error message
ModelState.AddModelError("Title", "Title is required!");
}
//This IF statement makes sure the title is between 5 and 200 characters long
else if (auction.Title.Length < 5 || auction.Title.Length > 200)
{
ModelState.AddModelError("Title", "Title must be between 5 and 20 characters long!");
}
*/
//If the modelstate is valid (no errors), redirect the action to "Index"
if (ModelState.IsValid)
{
//Creates a new instance of AuctionsDataContext, adds new object, and saves changes
var db = new AuctionsDataContext();
db.Auctions.Add(auction);
db.SaveChanges();
return RedirectToAction("Index");
}
//calls the Create function again if the user's input has errors!
return Create();
}
public ActionResult Create([Bind(Exclude="CurrentPrice")]Models.Auction auction)
{
/* if (string.IsNullOrWhiteSpace(auction.Title))
{
ModelState.AddModelError("Title","Title is expected!");
}
else if (auction.Title.Length < 5 || auction.Title.Length > 200)
{
ModelState.AddModelError("Title", "Title should be between 5 and 200 characters");
}
*/
if (ModelState.IsValid)
{
//save to data base
//Response.Write("<script type='text/javascript'> alert('Saved to the database')</script>");
var db = new AuctionsDataContext();
db.Auctions.Add(auction);
db.SaveChanges();
return RedirectToAction("Index");
}
return Create();
}