/// <summary>
/// this seclests the lectuer from the database
/// to be used with in this code and useing a seclect query
/// </summary>
/// <returns>list of lectuerCl</returns>
public List<LecturerCL> SelectLectuer()
{
string query = "SELECT * FROM lecturer";
// creats a list of lectuer objects
List<LecturerCL> allLect = new List<LecturerCL>();
//Open connection
if (this.OpenConnection() == true)
{
//Create Command
MySqlCommand cmd = new MySqlCommand(query, connection);
//Create a data reader and Execute the command
MySqlDataReader dataReader = cmd.ExecuteReader();
//Read the data and store them in the list
while (dataReader.Read())
{
// adds the data in the columes to the class varbiles and pass them in
Int32 lectuerID = dataReader.GetInt32(0);
String lectuerName = dataReader.GetString(1);
Int32 requiedTeachingHrs = dataReader.GetInt32(2);
Int32 teachingHrs = dataReader.GetInt32(3);
// crates the lectuer object
LecturerCL l = new LecturerCL(lectuerID, lectuerName, teachingHrs, requiedTeachingHrs);
// add all the curent values to the database
allLect.Add(l);
}
//close Data Reader
dataReader.Close();
//close Connection
this.CloseConnection();
}
// return all the records in the database for the lecturer
return allLect;
}
/// <summary>
/// this method allows a user to insert an lectuer
/// infomation into the data base useing a Insert query
/// </summary>
/// <param name="l"></param>
public void InsertLect(LecturerCL l)
{
// query to allow data to be placed into the table lectuere on the database from the lectuerCL class
string queryLect = "INSERT INTO lecturer (lecturerName, lecturerRequiredHours, lecturerTaughtHours) VALUES('" + l.lectName + "','" + l.ReqTeachingHrs + "','" + l.TeachingHrs + "')";
//open connection
if (this.OpenConnection() == true)
{
//create command and assign the query and connection from the constructor
MySqlCommand cmd = new MySqlCommand(queryLect, connection);
//Execute command
cmd.ExecuteNonQuery();
//close connection
this.CloseConnection();
}
}
