// public ContractDAL()
// {
// connection = DBHelper.OpenConnection();
// }
public bool CreateContract(Contract contract, Customers cus)
{
if (contract == null)
{
return(false);
}
bool result = false;
MySqlConnection connection = DBHelper.OpenConnection();
MySqlCommand cmd = connection.CreateCommand();
cmd.Connection = connection;
cmd.CommandText = "lock tables Customers write, Contract_Motor write, Contract write,Motor write;";
cmd.ExecuteNonQuery();
MySqlTransaction trans = connection.BeginTransaction();
cmd.Transaction = trans;
MySqlDataReader reader = null;
CustomerDAL cusdal = new CustomerDAL();
if (cus == null || cus.Customer_Name == null || cus.Customer_Name == "")
{
cus = new Customers()
{
CustomerID = 1
};
}
try
{
if (cusdal.GetCustomerByIdentityCard(cus.IdentityCard) == null)
{
cmd.CommandText = @"insert into Customers(Customer_Name,Customer_Address,IdentityCard,Customer_PhoneNumber)
values(@Customer_Name,@Customer_Address,@IdentityCard,@Customer_PhoneNumber);";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("@Customer_Name", cus.Customer_Name);
cmd.Parameters.AddWithValue("@Customer_Address", cus.Customer_Address);
cmd.Parameters.AddWithValue("@IdentityCard", cus.IdentityCard);
cmd.Parameters.AddWithValue("@Customer_PhoneNumber", cus.Customer_PhoneNumber);
cmd.ExecuteNonQuery();
cmd.CommandText = "select CustomerID from Customers order by CustomerID desc limit 1;";
reader = cmd.ExecuteReader();
if (reader.Read())
{
cus.CustomerID = reader.GetInt32("CustomerID");
}
reader.Close();
}
else
{
cusdal = new CustomerDAL();
cus = cusdal.GetCustomerByIdentityCard(cus.IdentityCard);
}
// insert Contract;
cmd.CommandText = @"insert into Contract(CustomerID,IdentityCard,Type_Transaction,Contract_Status,Contract_DateRental,Contract_DateReturn)
values(@CustomerID,@IdentityCard,@Type_Transaction,@Contract_Status,@Contract_DateRental, @Contract_DateReturn);";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("@CustomerID", cus.CustomerID);
cmd.Parameters.AddWithValue("@IdentityCard", cus.IdentityCard);
cmd.Parameters.AddWithValue("@Type_Transaction", contract.Type_Transaction);
cmd.Parameters.AddWithValue("@Contract_Status", contract.Contract_Status);
cmd.Parameters.AddWithValue("@Contract_DateRental", contract.DateRental);
cmd.Parameters.AddWithValue("@Contract_DateReturn", contract.DateReturn);
cmd.ExecuteNonQuery();
cmd.CommandText = "select LAST_INSERT_ID() as ContractID";
reader = cmd.ExecuteReader();
if (reader.Read())
{
contract.customer.CustomerID = reader.GetInt32("ContractID");
}
reader.Close();
if (contract.motor.LicensePlate == null)
{
throw new Exception("Khong tim thay xe");
}
cmd.CommandText = "select PriceOfMotor from Motor where LicensePlate = @LicensePlate";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("@LicensePlate", contract.motor.LicensePlate);
reader = cmd.ExecuteReader();
if (reader.Read())
{
contract.motor.PriceOfMotor = reader.GetString("PriceOfMotor");
}
// if (contract.PriceOfMotor == null)
// {
// throw new Exception("Khong ton tai xe");
// }
reader.Close();
//insert Contract_Motor
cmd.CommandText = "insert into Contract_Motor(LicensePlate,ContractID) values(@LicensePlate,@ContractID);";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("@LicensePlate", contract.motor.LicensePlate);
cmd.Parameters.AddWithValue("@ContractID", contract.customer.CustomerID);
cmd.ExecuteNonQuery();
//Update status in Motor
// if (contract.deposit <= 50000)
// {
// throw new Exception("Ban chua dat coc");
// }
cmd.CommandText = "update Motor set Motor_Status = @Motor_Status where LicensePlate = '" + contract.motor.LicensePlate + "';";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("@Motor_Status", contract.Type_Transaction);
cmd.ExecuteNonQuery();
trans.Commit();
result = true;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
result = false;
try
{
trans.Rollback();
}
catch
{
}
}
finally
{
cmd.CommandText = "unlock tables;";
cmd.ExecuteNonQuery();
DBHelper.CloseConnection();
}
return(result);
}
public bool ReturnMotor(Customers customer, Motor motor, Contract contract)
{
bool result = false;
CustomerDAL cusdal = new CustomerDAL();
MotorDAL mtdal = new MotorDAL();
MySqlConnection connection = DBHelper.OpenConnection();
MySqlCommand cmd = connection.CreateCommand();
cmd.Connection = connection;
cmd.CommandText = "lock tables Contract write,Motor write;";
cmd.ExecuteNonQuery();
MySqlTransaction trans = connection.BeginTransaction();
cmd.Transaction = trans;
MySqlDataReader reader = null;
try
{
if (cusdal.GetCustomerByID(customer.CustomerID) != null && mtdal.GetMotorByLicensePlate(motor.LicensePlate) != null)
{
cmd.CommandText = @"select ct.ContractID,ct.CustomerID,mt.LicensePlate,ct.Contract_DateRental,ct.Contract_DateReturn,datediff(ct.Contract_DateReturn,ct.Contract_DateRental) as TongNgayThue,
(mt.PriceOfMotor * datediff(ct.Contract_DateReturn,ct.Contract_DateRental)) as TongTien from Contract ct
inner join Contract_Motor cm on ct.ContractID = cm.ContractID
inner join Motor mt on mt.LicensePlate = cm.LicensePlate where ct.CustomerID = '" + customer.CustomerID + "' and mt.LicensePlate = '" + motor.LicensePlate + "';";
reader = cmd.ExecuteReader();
if (reader.Read())
{
contract.ContractID = reader.GetInt32("ContractID");
}
reader.Close();
// Update status contract
cmd.CommandText = "update Contract set Contract_Status = 'DA THANH TOAN' where ContractID = '" + contract.ContractID + "';";
// cmd.Parameters.Clear();
// cmd.Parameters.AddWithValue("@LicensePlate",motor.LicensePlate);
cmd.ExecuteNonQuery();
// Update status Motor
cmd.CommandText = "update Motor set Motor_Status = 'CHUA THUE' where LicensePlate = '" + motor.LicensePlate + "'";
// cmd.Parameters.Clear();
// cmd.Parameters.AddWithValue("@LicensePlate",motor.LicensePlate);
cmd.ExecuteNonQuery();
trans.Commit();
return(true);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
result = false;
try
{
trans.Rollback();
}
catch
{
}
}
finally
{
cmd.CommandText = "unlock tables;";
cmd.ExecuteNonQuery();
DBHelper.CloseConnection();
}
return(result);
}
