public bool UpdateLending(int id, LendingModel lending)
{
if (lending.ReturnDate == null)
{
try
{
var dbLending = db.Lendings.FirstOrDefault(x => x.Id == id);
dbLending.ReturnDate = lending.ReturnDate;
var bookCopy = db.BookCopies.FirstOrDefault(
x => x.BookId == lending.BookId &&
x.LibraryId == lending.LibraryId);
bookCopy.NumberOfCopies = bookCopy.NumberOfCopies + 1;
db.SaveChanges();
return(true);
}
catch (Exception ex)
{
return(false);
}
}
return(false);
}
public bool InsertLending(LendingModel lending)
{
try
{
var dbLending = new Lending()
{
LendingDate = lending.LendingDate,
ReturnDate = lending.ReturnDate,
BookId = lending.BookId,
ClientId = lending.ClientId,
LibraryId = lending.LibraryId
};
db.Lendings.Add(dbLending);
var bookCopy = db.BookCopies.FirstOrDefault(
x => x.BookId == lending.BookId &&
x.LibraryId == lending.LibraryId);
bookCopy.NumberOfCopies = bookCopy.NumberOfCopies - 1;
db.SaveChanges();
return(true);
}
catch (Exception ex)
{
return(false);
}
}
public IHttpActionResult GetById(int id)
{
LendingModel result = lendingService.GetById(id);
if (result != null)
{
return(Ok(result));
}
return(NotFound());
}
public IHttpActionResult InsertLending([FromBody] LendingModel lending)
{
var insertLending = lendingService.InsertLending(lending);
if (insertLending)
{
return(Ok());
}
return(Content(HttpStatusCode.BadRequest, "Bad object"));
}
public IHttpActionResult UpdateLending(int id, [FromBody] LendingModel lending)
{
LendingModel result = lendingService.GetById(id);
if (result != null)
{
var updateLending = lendingService.UpdateLending(id, lending);
if (updateLending)
{
return(Ok());
}
}
return(NotFound());
}
public LendingModel GetById(int id)
{
var dbLending = db.Lendings.FirstOrDefault(x => x.Id == id);
if (dbLending == null)
{
return(null);
}
else
{
var lending = new LendingModel()
{
Id = dbLending.Id,
LendingDate = dbLending.LendingDate,
ReturnDate = dbLending.ReturnDate,
BookId = dbLending.BookId,
ClientId = dbLending.ClientId,
LibraryId = dbLending.LibraryId
};
return(lending);
}
}