//Removes all the information about an especific flight, provided its id
public DataSet deleteFlight(FlightEN b, int i) // It will delete the index passed in the view
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
SqlConnection c = new SqlConnection(s); //The connection is effectuated
DataSet virtdb = new DataSet();
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
SqlDataAdapter da = new SqlDataAdapter("select * from Flight", c);
da.Fill(virtdb, "flight"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a new instance of a table
t = virtdb.Tables["flight"]; //Fills it with the information obtained from the select
t.Rows[i].Delete(); //Deletes the row
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "flight"); //Updates the DB with the new information
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: Delete flight");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
//Adds a new flight to the DB
public DataSet addFlight(FlightEN b)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
SqlConnection c = new SqlConnection(s); //The connection is effectuated
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
SqlDataAdapter da = new SqlDataAdapter("select * from Flight", c);
da.Fill(virtdb, "flight"); //It introduces the information returned from the select into this virtual DB
DataTable dt = new DataTable(); //Creates a new instance of a table
dt = virtdb.Tables["flight"]; //Fills it with the information obtained from the select
DataRow newRow = dt.NewRow(); //Creates a new row
newRow[0] = b.id;
newRow[1] = b.DepartureTime;
newRow[2] = b.ArrivalTime; //Fills it with the content of the new flight
newRow[3] = b.DepartureCity;
newRow[4] = b.DestinationCity;
newRow[5] = b.classFlight;
newRow[6] = b.Price;
newRow[7] = b.Company;
newRow[8] = b.Extras;
newRow[9] = b.Image;
dt.Rows.Add(newRow);
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "flight"); //Updates the DB with the new information added
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: Add flight");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
//Updates the information of an especific flight provided its id
public DataSet updateFlight(FlightEN b, int i)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
SqlConnection c = new SqlConnection(s); //The connection is effectuated
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
SqlDataAdapter da = new SqlDataAdapter("select * from Flight", c);
da.Fill(virtdb, "flight"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a new instance of a table
t = virtdb.Tables["flight"]; //Fills it with the information obtained from the select
t.Rows[i]["Id"] = b.id;
t.Rows[i]["departureTime"] = b.DepartureTime;
t.Rows[i]["arrivalTime"] = b.ArrivalTime;
t.Rows[i]["departureCity"] = b.DepartureCity; //Makes the changes in the atributes
t.Rows[i]["destinationCity"] = b.DestinationCity;
t.Rows[i]["ClassFlight"] = b.classFlight;
t.Rows[i]["price"] = b.Price;
t.Rows[i]["company"] = b.Company;
t.Rows[i]["extras"] = b.Extras;
t.Rows[i]["image"] = b.Image;
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "flight"); //Updates the DB with the new information
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: Delete flight");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
//It provides with the information of all the flights contained in the DB
public DataSet showFlights(FlightEN b)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
SqlConnection c = new SqlConnection(s); //The connection is effectuated
try
{
SqlDataAdapter da = new SqlDataAdapter("select * from Flight", c); //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
da.Fill(virtdb, "flight"); //It introduces the information returned from the select into this virtual DB
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: show flight");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information needed inside
}
public void add_flight(FlightEN f)
{
}
public void show_timetable(FlightEN f)
{
}
public void search_flight(FlightEN f)
{
}
public void update_flight(FlightEN f)
{
}
public void delete_flight(FlightEN f)
{
}
