public bool End_Rent(string t_ISBN, DateTime t_Reservation_date, string t_username)
{
try
{
DataContext dbConnection = Create_DBConnection();
Table <Rent.db_Rent> rentTable = dbConnection.GetTable <Rent.db_Rent>();
objUser user = Get_User(t_username);
objBook book = Get_Book(t_ISBN).First();
//select
var returnValue =
from i in rentTable
where i.FKey_User == user.PK && i.FKey_Book == book.PK && i.Lend_date == t_Reservation_date
select i;
//Convert DB search to objects
foreach (var i in returnValue)
{
i.Return_date = DateTime.Now;
}
dbConnection.SubmitChanges();
} catch
{
return(false);
}
return(true);
}
public bool Approve_Reservation(string t_ISBN, string t_Username)
{
objBook book = Get_Book(t_ISBN).First();
objUser user = Get_User(t_Username);
try {
var dbConnection = Create_DBConnection();
DateTime today = DateTime.Now;
DateTime returnDate = today.AddDays(30);
Rent.db_Rent rent = new Rent.db_Rent
{
Lend_date = today,
End_rentdate = returnDate,
FKey_Book = book.PK,
FKey_User = user.PK
};
// Add the new object to the Orders collection.
Table <Rent.db_Rent> rentTable = dbConnection.GetTable <Rent.db_Rent>();
rentTable.InsertOnSubmit(rent);
dbConnection.SubmitChanges();
//Set done flag on Reservation
Set_DoneFlag(t_ISBN, true);
} catch
{
return(false);
}
return(true);
}
//Get user by username
public objUser Get_User(string t_username)
{
try
{
DataContext dbConnection = Create_DBConnection();
Table <User.db_User> userTable = dbConnection.GetTable <User.db_User>();
var returnList = new List <objUser>();
//select
var returnValue =
from i_u in userTable
where i_u.Username == t_username
select i_u;
//Convert DB search to objects
foreach (var i in returnValue)
{
var customer = new objUser(i.Username, i.Password, i.Surname, i.Last_name, i.Adress, i.ZIP, i.City, i.Pkey_1, i.Write, i.Write_rent);
returnList.Add(customer);
}
//Close DB connection
dbConnection.Dispose();
objUser userReturn = returnList.First();
return(userReturn);
}
catch
{
return(null);
}
}
private void BntLogin_Click(object sender, RoutedEventArgs e)
{
//Create view object
Controller con= new Controller();
//Call login function
bool loginCorrect = con.Login(txtUsername.Text, txtPassword.Password);
//Create user interface
if (loginCorrect)
{
objUser currentUser = con.Get_User(txtUsername.Text);
if (currentUser.Write == true || currentUser.Write_rent == true) {
AdminInterface guiAdmin = new AdminInterface(txtUsername.Text);
guiAdmin.Show();
}
else
{
UserInterface guiUser = new UserInterface(txtUsername.Text);
guiUser.Show();
}
} else
{
MessageBox.Show("Username or password is not correct", "Invalide credntials", MessageBoxButton.OK,MessageBoxImage.Exclamation);
}
}
// Simplifyes the code in the view
public bool Login(string t_username, string t_password)
{
//Check if username and pass which where provides are correct
bool returnValue = false;
objUser objUser = Get_User(t_username);
if (objUser.Password == t_password)
{
returnValue = true;
}
return(returnValue);
}
public void Set_AdminPermission(objUser t_User, GUI.AdminInterface t_IntAdmin)
{
if (t_User.Write == true)
{
t_IntAdmin.tbAddBook.IsEnabled = true;
t_IntAdmin.tbRemoveBook.IsEnabled = true;
}
if (t_User.Write_rent == true)
{
t_IntAdmin.tbApprovel.IsEnabled = true;
t_IntAdmin.tbCurrentRent.IsEnabled = true;
t_IntAdmin.tbTriggerRental.IsEnabled = true;
}
if (t_User.Write == false && t_User.Write_rent == false)
{
t_IntAdmin.tbReport.Focus();
}
}
//Create a reservation
public bool Set_Reseravtion(string t_ISBN, string t_CurrentUser)
{
bool returnValue = true;
try
{
//Get DB connction
var dbConnection = Create_DBConnection();
//Get_CurrentUser
objUser user = Get_User(t_CurrentUser);
//Get Book for reservation
objBook book = Get_Book(t_ISBN).First();
//Sql insert
// Create a new Order object.
Reservation.db_Reservation reservation = new Reservation.db_Reservation
{
Reservation_date = DateTime.Now,
Done = false,
FKey_Book = book.PK,
FKey_User = user.PK
};
// Add the new object to the Orders collection.
Table <Reservation.db_Reservation> reservationTable = dbConnection.GetTable <Reservation.db_Reservation>();
reservationTable.InsertOnSubmit(reservation);
dbConnection.SubmitChanges();
}
catch
{
returnValue = false;
}
return(returnValue);
}
