/// <summary>
/// POST: api/Books
/// use DTO
/// </summary>
/// <param name="book"></param>
/// <returns></returns>
public async Task <IHttpActionResult> PostBook(Book book)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
db.Books.Add(book);
await db.SaveChangesAsync();
// New code:
// Load author name
db.Entry(book).Reference(x => x.Author).Load();
var dto = new BookDTO()
{
Id = book.Id,
Title = book.Title,
AuthorName = book.Author.Name
};
return(CreatedAtRoute("DefaultApi", new { id = book.Id }, dto));
}
public async Task<IHttpActionResult> PostBook(Book book)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
db.Books.Add(book);
await db.SaveChangesAsync();
// New code:
// Load author name
db.Entry(book).Reference(x => x.Author).Load();
var dto = new BookDTO()
{
Id = book.Id,
Title = book.Title,
AuthorName = book.Author.Name
};
return CreatedAtRoute("DefaultApi", new { id = book.Id }, dto);
}
public async Task<IHttpActionResult> PostBook(Book book)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
db.Books.Add(book);
await db.SaveChangesAsync();
db.Entry(book).Reference(x => x.Author).Load();
//selecting BookDTO class for lazy loading with authorName in book table
var dto = new BookDTO()
{
Id = book.Id,
Title = book.Title,
AuthorName = book.Author.Name
};
return CreatedAtRoute("DefaultApi", new { id = book.Id }, dto);
}
public async Task<IActionResult> PostBook([FromBody] Book book)
{
if (!ModelState.IsValid)
{
return HttpBadRequest(ModelState);
}
_context.Books.Add(book);
try
{
await _context.SaveChangesAsync();
var dto = new BookDTO()
{
Id = _context.Entry(book).Entity.Id,
Title = _context.Entry(book).Entity.Title,
AuthorName = _context.Entry(book).Entity.Author.Name
};
return CreatedAtRoute("GetBook", new { id = book.Id }, dto);
}
catch (DbUpdateException)
{
if (BookExists(book.Id))
{
return new HttpStatusCodeResult(StatusCodes.Status409Conflict);
}
else
{
throw;
}
}
}
