// Delete object
// return indicator of success
public static bool Delete(Agencies obj)
{
bool success = false;
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create DELETE command
string deleteStatment =
"DELETE FROM Agencies " +
"WHERE AgencyId = @AgencyId " + // needed for identification of object
"AND AgncyAddress = @AgncyAddress " + // the rest - for optimistic concurrency
"AND AgncyCity = @AgncyCity " +
"AND AgncyProv = @AgncyProv " +
"AND AgncyPostal = @AgncyPostal " +
"AND AgncyCountry = @AgncyCountry " +
"AND AgncyPhone = @AgncyPhone " +
"AND AgncyFax = @AgncyFax ";
SqlCommand cmd = new SqlCommand(deleteStatment, connection);
// suply perameter value
cmd.Parameters.AddWithValue("@AgencyId", obj.AgencyId);
cmd.Parameters.AddWithValue("@AgncyAddress", obj.AgncyAddress);
cmd.Parameters.AddWithValue("@AgncyCity", obj.AgncyCity);
cmd.Parameters.AddWithValue("@AgncyProv", obj.AgncyProv);
cmd.Parameters.AddWithValue("@AgncyPostal", obj.AgncyPostal);
cmd.Parameters.AddWithValue("@AgncyCountry", obj.AgncyCountry);
cmd.Parameters.AddWithValue("@AgncyPhone", obj.AgncyPhone);
cmd.Parameters.AddWithValue("@AgncyFax", obj.AgncyFax);
// execute the command
try
{
// open the conection
connection.Open();
// execute the command
int count = cmd.ExecuteNonQuery();
// check if successful
if (count > 0)
{
success = true;
}
}
catch (Exception ex)
{
throw ex;
}
finally // executes always
{
connection.Close();
}
// retrieve generated customer nID to return
return(success);
}
// retrieve object with given ID
public static Agencies GetValue(int objID)
{
Agencies obj = null;
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create SELECT command
string query =
"SELECT AgencyId, AgncyAddress, AgncyCity, AgncyProv, AgncyPostal, AgncyCountry, AgncyPhone, AgncyFax " +
"FROM Agencies " +
"WHERE AgencyId = @AgencyId ";
SqlCommand cmd = new SqlCommand(query, connection);
// suply perameter value
cmd.Parameters.AddWithValue("@AgencyId", objID);
// run the SELECT query
try
{
// open the conection
connection.Open();
// run the command
SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.SingleRow);
// build object object to return
if (reader.Read()) // if there is a object with this ID
{
obj = new Agencies();
obj.AgencyId = Convert.ToInt32(reader["AgencyId"]);
obj.AgncyAddress = reader["AgncyAddress"].ToString();
obj.AgncyCity = reader["AgncyCity"].ToString();
obj.AgncyProv = reader["AgncyProv"].ToString();
obj.AgncyPostal = reader["AgncyPostal"].ToString();
obj.AgncyCountry = reader["AgncyCountry"].ToString();
obj.AgncyPhone = reader["AgncyPhone"].ToString();
obj.AgncyFax = reader["AgncyFax"].ToString();
}
reader.Close();
}
catch (Exception ex)
{
throw ex;
}
finally // executes always
{
connection.Close();
}
return(obj);
}
// makes identival copy of Customer
public Agencies Clone()
{
Agencies copy = new Agencies();
copy.AgencyId = this.AgencyId;
copy.AgncyAddress = this.AgncyAddress;
copy.AgncyCity = this.AgncyCity;
copy.AgncyProv = this.AgncyProv;
copy.AgncyPostal = this.AgncyPostal;
copy.AgncyCountry = this.AgncyCountry;
copy.AgncyPhone = this.AgncyPhone;
copy.AgncyFax = this.AgncyFax;
return(copy);
}
// insert new row to table
// return new object
public static int Add(Agencies obj)
{
int custID = 0;
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create INSERT command
// CustomerID is IDENTITY so no value provided
string insertStatment =
"INSERT INTO Agencies(AgencyId, AgncyAddress, AgncyCity, AgncyProv, AgncyPostal, AgncyCountry, AgncyPhone, AgncyFax) " +
"OUTPUT inserted.[AgencyId] " +
"VALUES(@AgencyId, @AgencyId) ";
SqlCommand cmd = new SqlCommand(insertStatment, connection);
// suply perameter value
cmd.Parameters.AddWithValue("@AgencyId", obj.AgencyId);
cmd.Parameters.AddWithValue("@AgncyAddress", obj.AgncyAddress);
cmd.Parameters.AddWithValue("@AgncyCity", obj.AgncyCity);
cmd.Parameters.AddWithValue("@AgncyProv", obj.AgncyProv);
cmd.Parameters.AddWithValue("@AgncyPostal", obj.AgncyPostal);
cmd.Parameters.AddWithValue("@AgncyCountry", obj.AgncyCountry);
cmd.Parameters.AddWithValue("@AgncyPhone", obj.AgncyPhone);
cmd.Parameters.AddWithValue("@AgncyFax", obj.AgncyFax);
// execute the INSERT command
try
{
// open the conection
connection.Open();
// execute insert command
custID = (int)cmd.ExecuteScalar();
}
catch (Exception ex)
{
throw ex;
}
finally // executes always
{
connection.Close();
}
// retrieve generated customer nID to return
return(custID);
}
// retrieve all objects
public static List <Agencies> GetAll()
{
// create SELECT command
string query =
"SELECT AgencyId, AgncyAddress, AgncyCity, AgncyProv, AgncyPostal, AgncyCountry, AgncyPhone, AgncyFax " +
"FROM Agencies ";
SqlConnection connection = TravelExperts.GetConection();
List <Agencies> dataList = new List <Agencies>(); // epmty list
Agencies data; // for reading
// create connection
SqlCommand cmd = new SqlCommand(query, connection);
// open the conection
connection.Open();
// run the command
SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
// build object list to return
while (reader.Read()) // if there is a object with this ID
{
data = new Agencies();
data.AgencyId = Convert.ToInt32(reader["AgencyId"]);
data.AgncyAddress = reader["AgncyAddress"].ToString();
data.AgncyCity = reader["AgncyCity"].ToString();
data.AgncyProv = reader["AgncyProv"].ToString();
data.AgncyPostal = reader["AgncyPostal"].ToString();
data.AgncyCountry = reader["AgncyCountry"].ToString();
data.AgncyPhone = reader["AgncyPhone"].ToString();
data.AgncyFax = reader["AgncyFax"].ToString();
dataList.Add(data);
}
return(dataList);
}
// Update object
// return indicator of success
public static bool Update(Agencies oldObj, Agencies newObj)
{
bool success = false; // did not update
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create UPDATE command
string updateStatment =
"UPDATE Agencies SET " +
"AgencyId = @NewAgencyId, " +
"AgncyAddress = @NewAgncyAddress, " +
"AgncyCity = @NewAgncyCity, " +
"AgncyProv = @NewAgncyProv, " +
"AgncyPostal = @NewAgncyPostal, " +
"AgncyCountry = @NewAgncyCountry, " +
"AgncyPhone = @NewAgncyPhone, " +
"AgncyFax = @NewAgncyFax " +
"WHERE AgencyId = @OldAgencyId " + // needed for identification of object
"AND AgncyAddress = @OldAgncyAddress " + // the rest - for optimistic concurrency
"AND AgncyCity = @OldAgncyCity " +
"AND AgncyProv = @OldAgncyProv " +
"AND AgncyPostal = @OldAgncyPostal " +
"AND AgncyCountry = @OldAgncyCountry " +
"AND AgncyPhone = @OldAgncyPhone " +
"AND AgncyFax = @OldAgncyFax ";
SqlCommand cmd = new SqlCommand(updateStatment, connection);
// suply perameter value
// New object Values
cmd.Parameters.AddWithValue("@NewAgencyId", newObj.AgencyId);
cmd.Parameters.AddWithValue("@NewAgncyAddress", newObj.AgncyAddress);
cmd.Parameters.AddWithValue("@NewAgncyCity", newObj.AgncyCity);
cmd.Parameters.AddWithValue("@NewAgncyProv", newObj.AgncyProv);
cmd.Parameters.AddWithValue("@NewAgncyPostal", newObj.AgncyPostal);
cmd.Parameters.AddWithValue("@NewAgncyCountry", newObj.AgncyCountry);
cmd.Parameters.AddWithValue("@NewAgncyPhone", newObj.AgncyPhone);
cmd.Parameters.AddWithValue("@NewAgncyFax", newObj.AgncyFax);
// ID
cmd.Parameters.AddWithValue("@OldAgencyId", oldObj.AgencyId);
// Old object Values
cmd.Parameters.AddWithValue("@OldAgncyAddress", oldObj.AgncyAddress);
cmd.Parameters.AddWithValue("@OldAgncyCity", oldObj.AgncyCity);
cmd.Parameters.AddWithValue("@OldAgncyProv", oldObj.AgncyProv);
cmd.Parameters.AddWithValue("@OldAgncyPostal", oldObj.AgncyPostal);
cmd.Parameters.AddWithValue("@OldAgncyCountry", oldObj.AgncyCountry);
cmd.Parameters.AddWithValue("@OldAgncyPhone", oldObj.AgncyPhone);
cmd.Parameters.AddWithValue("@OldAgncyFax", oldObj.AgncyFax);
// execute the UPDATE command
try
{
// open the conection
connection.Open();
// execute the command
int count = cmd.ExecuteNonQuery();
// check if successful
if (count > 0)
{
success = true; // updated
}
}
catch (Exception ex)
{
throw ex;
}
finally // executes always
{
connection.Close();
}
// retrieve generated object ID to return
return(success);
}
