public ArrayList searchCruises(CruiseEN cr)
{
ArrayList a = new ArrayList();
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Select * from Cruise where Id = " + cr.Id, c);
SqlDataReader dr = com.ExecuteReader();
while (dr.Read())
{
a.Add(dr["Id"].ToString());
}
dr.Close();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Search Cruise");
}
finally
{
c.Close();
}
return(a);
}
//Removes a cruise from the DB
public DataSet deleteCruise(CruiseEN 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(); //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 "Cruise"
SqlDataAdapter da = new SqlDataAdapter("Select * from Cruise", c);
da.Fill(virtdb, "cruise"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a table
t = virtdb.Tables["cruise"]; //Fills it with the select
t.Rows[i].Delete(); //Removes the cruise from the table
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "cruise"); //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: Delete cruise");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
public void delete_Cruise(CruiseEN cr)
{
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Delete from Cruise where ID = " + cr.Id, c);
com.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Delete Cruise");
}
finally
{
c.Close();
}
}
//Adds a new Cruise to the DB
public DataSet addCruise(CruiseEN 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 "Cruise"
SqlDataAdapter da = new SqlDataAdapter("Select * from Cruise", c);
da.Fill(virtdb, "cruise"); //It introduces the information returned from the select into this virtual DB
DataTable dt = new DataTable(); //Creates a table
dt = virtdb.Tables["cruise"]; //Fills it with the select information
DataRow newRow = dt.NewRow(); //Crreates a new row
newRow[0] = b.id;
newRow[1] = b.DepartureTime;
newRow[2] = b.ArrivalTime; //Fills the row with the information of the new cruise
newRow[3] = b.city;
newRow[4] = b.route;
newRow[5] = b.Price;
newRow[6] = b.Company;
newRow[7] = b.Extras;
dt.Rows.Add(newRow); //Inserts the row to the table
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "cruise"); //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 cruise");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
public void add_Cruise(CruiseEN cr)
{
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Insert Into Cruise (ID,departureTime,arrivaleTime,City,Route) VALUES ('" + cr.Id + "','" + cr.departureDate + "','" + cr.arrivalDate + "','" +
cr.City + "','" + cr.Route + "')", c);
com.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Add Cruise");
}
finally
{
c.Close();
}
}
public void update_Cruise(CruiseEN cr)
{
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Update Cruise where ID = '" + cr.Id + "', departureTime = '"
+ cr.departureDate + "', arrivalTime = '" + cr.arrivalDate + "' , City ='" + cr.City +
"', Route = '" + cr.Route + "')", c);
com.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Update Cruise");
}
finally
{
c.Close();
}
}
//Shows all the information about all the cruises of the DB
public DataSet showCruises(CruiseEN 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
{
SqlDataAdapter da = new SqlDataAdapter("select * from Cruise", c); //The select in SQL language that is processed in the DB which will return all the rows from the table "Cruise"
da.Fill(virtdb, "cruise"); //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 cruise");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
