public IActionResult CreateBook(int authorid,
/* Request body will contain the data for the new book */
[FromBody] BookForCreationDto book)
{
// If the data sent is corrupted or empty then it will return a Bad Request.
if (book == null)
{
return(BadRequest());
}
// This will generate an error if the Genre and Title are the same.
if (book.Genre == book.Title)
{
ModelState.AddModelError("Genre", "The provided genre should be different from the title.");
}
// This will generate an error if the Description and Title are the same.
if (book.Description == book.Title)
{
ModelState.AddModelError("Description", "The provided description should be different from the title.");
}
// This will generate an error if the Description and Genre are the same.
if (book.Description == book.Genre)
{
ModelState.AddModelError("Description", "The provided description should be different from the genre.");
}
// ModelState is a dictionary that contains state of the model and model binding validations.
// Will return false if an invalid value is sent.
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var finalBook = Mapper.Map <Entities.Book>(book);
_bookLibraryRepository.AddBookForAuthor(authorid, finalBook);
if (!_bookLibraryRepository.Save())
{
return(StatusCode(500, "A problem happend while handeling your request."));
}
var createdBookToReturn = Mapper.Map <Models.BookDto>(finalBook);
return(CreatedAtRoute("GetSingleBook", new
{ authorId = authorid, id = createdBookToReturn.Id }, createdBookToReturn));
}
