public async Task <bool> BorrowBook(BookAndUserIds bookAndUser)
{
var id = await this.getMaxId() + 1;
var date = DateTime.Now;
var newLoan = new Loans(id, date, bookAndUser.idUser, bookAndUser.idBook);
context.Loans.Add(newLoan);
var result = await context.SaveChangesAsync();
return(result == 1 ? true : false);
}
public async Task <int> RemoveBookFromUserFavourites(BookAndUserIds bookAndUser)
{
bool isInserted = await this.VerifyIfBookIsAlreadyInFavourites(bookAndUser.idBook, bookAndUser.idUser);
if (isInserted == true)
{
var usFavToRemove = await this.GetUserFav(bookAndUser);
context.Remove(usFavToRemove);
return(await this.context.SaveChangesAsync());
}
else
{
return(await this.context.SaveChangesAsync());
}
}
public async Task <int> addBookToUserFavourites(BookAndUserIds bookAndUser)
{
bool alreadyInserted = await this.VerifyIfBookIsAlreadyInFavourites(bookAndUser.idBook, bookAndUser.idUser);
if (alreadyInserted == false)
{
var maxId = await this.getMaxId() + 1;
this.context.UserFavourites.Add(new UserFavourites(maxId, bookAndUser.idBook, bookAndUser.idUser));
return(await this.context.SaveChangesAsync());
}
else
{
return(await this.context.SaveChangesAsync());
}
}
public async Task <UserFavourites> GetUserFav(BookAndUserIds bookAndUser)
{
return(await this.context.UserFavourites
.Where(uf => uf.IdUser == bookAndUser.idUser && uf.IdBook == bookAndUser.idBook)
.FirstOrDefaultAsync());
}
public Task <bool> BorrowBook(BookAndUserIds bookAndUser)
{
return(this.BorrowRepo.BorrowBook(bookAndUser));
}
public Task <int> RemoveBookToUserFavourites(BookAndUserIds bookAndUser)
{
return(this.UserFavRepo.RemoveBookFromUserFavourites(bookAndUser));
}
public Task <int> AddBookToUserFavourites(BookAndUserIds bookAndUser)
{
return(this.UserFavRepo.addBookToUserFavourites(bookAndUser));
}
