public void UpdateDiem(Diem d)
{
string query = "UPDATE diem SET idsinhvien = '" + d.idsinhvien + "', idkhoahoc = '" + d.idkhoahoc + "', chuyen_can = '" + d.chuyen_can + "', giua_ki = '" + d.giua_ki + "', cuoi_ki = '" + d.cuoi_ki + "', trung_binh = '" + d.trung_binh + "' WHERE id = '" + d.id + "';";
//open connection
if (this.OpenConnection() == true)
{
//create command and assign the query and connection from the constructor
MySqlCommand cmd = new MySqlCommand(query, connection);
//Execute command
cmd.ExecuteNonQuery();
//close connection
CloseConnection();
update();
}
}
public void InsertDiem(Diem d)
{
string query = "INSERT INTO diem (idsinhvien, idkhoahoc, chuyen_can, giua_ki, cuoi_ki, trung_binh) VALUES('"
+ d.idsinhvien + "','" + d.idkhoahoc + "','" + d.chuyen_can + "','" + d.giua_ki + "','" + d.cuoi_ki + "','" + d.trung_binh + "')";
//open connection
if (this.OpenConnection() == true)
{
//create command and assign the query and connection from the constructor
MySqlCommand cmd = new MySqlCommand(query, connection);
//Execute command
cmd.ExecuteNonQuery();
//close connection
CloseConnection();
update();
}
}
public void DeleteDiem(Diem d)
{
string query = "DELETE FROM diem WHERE id='" + d.id.ToString() + "';";
if (this.OpenConnection() == true)
{
try
{
MySqlCommand cmd = new MySqlCommand(query, connection);
cmd.ExecuteNonQuery();
}
catch (MySqlException ex)
{
}
finally
{
CloseConnection();
}
update();
}
}
public void Readhanle()
{
string str;
try
{
while ((str = reader.ReadLine()) != null)
{
Console.WriteLine(str);
string[] data = Regex.Split(str, "#@#");
if (data[0].Equals("Bang"))
{
if (data[1].Equals("Khoahoc"))
{
listKhoahoc(data[2]);
}
else if (data[1].Equals("Danghoc"))
{
listDanghoc(data[2]);
}
else if (data[1].Equals("Dahoc"))
{
listDahoc(data[2]);
}
else if (data[1].Equals("Dangki"))
{
listDangki(data[2]);
}
else if (data[1].Equals("Sinhvien"))
{
listSinhvien(data[2], data[3]);
}
else if (data[1].Equals("Diem"))
{
listDiem(data[2]);
}
}
else if (data[0].Equals("Dangky"))
{
int idkh = int.Parse(data[1]);
Console.WriteLine(sql.SelectDiem(sinhvien.id, idkh).Count);
if (sql.SelectDiem(sinhvien.id, idkh).Count > 0)
{
sql.DeleteDiem(sql.SelectDiem(sinhvien.id, idkh)[0]);
foreach (Khoahoc kh in sinhvien.dang_ki)
{
if (kh.id == idkh)
{
if (kh.danh_sach.Count() < kh.max_danhsach)
{
kh.trang_thai = "OPEN";
}
sinhvien.dang_ki.Remove(kh);
sql.UpdateSinhvien(sinhvien);
kh.danh_sach.Remove(sinhvien);
sql.UpdateKhoahoc(kh);
}
}
}
else
{
foreach (Khoahoc kh in sql.SearchKhoahoc(""))
{
if (kh.id == idkh && kh.trang_thai.Equals("OPEN"))
{
Diem diem = new Diem(sinhvien.id, kh.id, 0, 0, 0, 0);
sql.InsertDiem(diem);
Console.WriteLine("**");
kh.danh_sach.Add(sinhvien);
if (kh.danh_sach.Count() >= kh.max_danhsach)
{
kh.trang_thai = "CLOSE";
}
sql.UpdateKhoahoc(kh);
sinhvien.dang_ki.Add(kh);
sql.UpdateSinhvien(sinhvien);
}
}
}
listKhoahoc(data[2]);
updatesv();
}
else if (data[0].Equals("Login"))
{
bool t = false;
foreach (Sinhvien sv in sql.SearchSinhvien(""))
{
if (int.Parse(data[1]) == sv.id && sv.password.Equals(data[2]))
{
sinhvien = sv;
listKhoahoc("");
t = true;
}
}
if (t == false)
{
send("LoginFail");
throw new Exception();
}
}
}
}
catch (Exception ex)
{
writer.Close();
reader.Close();
stream.Close();
Console.WriteLine(ex);
Clientclose();
}
}
