public ActionResult Create(HttpPostedFileBase newImage, Product product, String submitButton)
{
switch (submitButton)
{
case "Add Picture":
AddPicture(newImage, product);
break;
case "Create":
if (ModelState.IsValid)
{
product.EditedBy = product.CreatedBy = (Guid) Membership.GetUser().ProviderUserKey;
_db.Products.Add(product);
foreach (Image a in product.Images)
{
a.Product = product;
_db.Images.Add(a);
}
_db.SaveChanges();
return RedirectToAction("RedirectedBack", "Products");
}
break;
default:
RemovePicture(product, submitButton);
break;
}
PrepareSelectLists();
return View(product);
}
private static void AddPicture(HttpPostedFileBase newImage, Product product)
{
if (newImage != null)
{
String filePath = Guid.NewGuid() + Path.GetExtension(newImage.FileName);
var newImg = new Image
{
ImageId = -1,
Path = filePath
};
newImage.SaveAs(newImg.FullPath);
product.Images.Add(newImg);
}
}
private static void RemovePicture(Product product, string submitButton)
{
string path = submitButton.Substring(7); //remove "delete:"
Image removedImage = product.Images.SingleOrDefault(img => img.Path == path);
if (removedImage != null)
{
if (removedImage.ImageId < 1)
System.IO.File.Delete(removedImage.FullPath);
product.Images.Remove(removedImage);
}
}
public ActionResult Edit(HttpPostedFileBase newImage, Product product, String submitButton)
{
switch (submitButton)
{
case "Add Picture":
AddPicture(newImage, product);
break;
case "Save":
if (ModelState.IsValid)
{
product.EditedBy = (Guid) Membership.GetUser().ProviderUserKey;
ICollection<Image> newImages = product.Images.ToList();
Dictionary<String, Image> oldImages =
_db.Images.Where(img => img.ProductId == product.ProductId).ToDictionary(image => image.Path);
foreach (Image a in newImages)
{
if (oldImages.ContainsKey(a.Path))
{
oldImages.Remove(a.Path);
product.Images.Remove(a);
}
else
{
a.Product = product;
_db.Images.Add(a);
}
}
foreach (Image a in oldImages.Values)
{
System.IO.File.Delete(a.FullPath);
_db.Images.Remove(a);
}
_db.Entry(product).State = EntityState.Modified;
_db.SaveChanges();
return RedirectToAction("RedirectedBack", "Products");
}
break;
default:
RemovePicture(product, submitButton);
break;
}
PrepareSelectLists(product.CategoryId, product.ProducerId);
return View(product);
}