public bool PutLoan(Loan Loan)
{
if (LoanExists(Loan.LoanId))
{
//update the Loan data corresponding to the id
_context.Loans.Update(Loan);
}
else
{
return(false);
}
try
{
_context.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
throw;
}
return(true);
}
public bool PutBook(Book Book)
{
if (BookExists(Book.BookId))
{
//update the book data corresponding to the id
_context.Books.Update(Book);
}
else
{
return(false);
}
try
{
_context.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
throw;
}
return(true);
}
public bool PutOrder(Order Order)
{
if (OrderExists(Order.OrderId))
{
//update the Order data corresponding to the id
_context.Orders.Update(Order);
}
else
{
return(false);
}
try
{
_context.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
throw;
}
return(true);
}
public bool PutUsers(Users users)
{
//next line of code checks whether the data exists for the given id
if (UsersExists(users.UserId))
{
////update the user data corresponding to the id
_context.Users.Update(users);
}
else
{
return(false);
}
try
{
_context.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
throw;
}
return(true);
}