// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync(int?id, string[] selectedCategories)
{
if (id == null)
{
return(NotFound());
}
var bookToUpdate = await _context.Book
.Include(i => i.Publisher)
.Include(i => i.BookCategories)
.ThenInclude(i => i.Category)
.FirstOrDefaultAsync(s => s.ID == id);
if (bookToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Book>(
bookToUpdate,
"Book",
i => i.Title, i => i.Author,
i => i.Price, i => i.PublishingDate, i => i.Publisher))
{
UpdateBookCategories(_context, selectedCategories, bookToUpdate);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Book).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BookExists(Book.ID))
{
return(NotFound());
}
else
{
throw;
}
}
UpdateBookCategories(_context, selectedCategories, bookToUpdate);
PopulateAssignedCategoryData(_context, bookToUpdate);
return(Page());
}
// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Category).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!CategoryExists(Category.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync(string[] selectedCategories)
{
var newBook = new Book();
if (selectedCategories != null)
{
newBook.BookCategories = new List <BookCategory>();
foreach (var cat in selectedCategories)
{
var catToAdd = new BookCategory
{
CategoryID = int.Parse(cat)
};
newBook.BookCategories.Add(catToAdd);
}
}
if (await TryUpdateModelAsync <Book>(
newBook,
"Book",
i => i.Title, i => i.Author,
i => i.Price, i => i.PublishingDate, i => i.PublisherID))
{
_context.Book.Add(newBook);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
PopulateAssignedCategoryData(_context, newBook);
return(Page());
}
// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Category.Add(Category);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Category = await _context.Category.FindAsync(id);
if (Category != null)
{
_context.Category.Remove(Category);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Book = await _context.Book.FindAsync(id);
if (Book != null)
{
_context.Book.Remove(Book);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Publisher = await _context.Publisher.FindAsync(id);
if (Publisher != null)
{
_context.Publisher.Remove(Publisher);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}