// retrieve all objects
public static List <Affiliations> GetAll()
{
// create SELECT command
string query =
"SELECT AffilitationId, AffName, AffDesc " +
"FROM Affiliations ";
SqlConnection connection = TravelExperts.GetConection();
List <Affiliations> dataList = new List <Affiliations>(); // epmty list
Affiliations 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 Affiliations();
data.AffilitationId = reader["AffilitationId"].ToString();
data.AffName = reader["AffName"].ToString();
data.AffDesc = reader["AffDesc"].ToString();
dataList.Add(data);
}
return(dataList);
}
// makes identival copy of Customer
public Affiliations Clone()
{
Affiliations copy = new Affiliations();
copy.AffilitationId = this.AffilitationId;
copy.AffName = this.AffName;
copy.AffDesc = this.AffDesc;
return(copy);
}
// Update object
// return indicator of success
public static bool Update(Affiliations oldObj, Affiliations newObj)
{
bool success = false; // did not update
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create UPDATE command
string updateStatment =
"UPDATE Affiliations SET " +
"AffilitationId = @NewAffilitationId, " +
"AffName = @NewAffName, " +
"AffDesc = @NewAffDesc " +
"WHERE TripTypeId = @OldTripTypeId " + // identifies
"AND AffName = @OldAffName " + // the rest - for optimistic concurrency
"AND AffDesc = @OldAffDesc ";
SqlCommand cmd = new SqlCommand(updateStatment, connection);
// suply perameter value
// New object Values
cmd.Parameters.AddWithValue("@NewAffilitationId", newObj.AffilitationId);
cmd.Parameters.AddWithValue("@NewAffName", newObj.AffName);
cmd.Parameters.AddWithValue("@NewAffDesc", newObj.AffDesc);
// ID
cmd.Parameters.AddWithValue("@OldAffilitationId", oldObj.AffilitationId);
// Old object Values
cmd.Parameters.AddWithValue("@OldAffName", oldObj.AffName);
cmd.Parameters.AddWithValue("@OldAffDesc", oldObj.AffDesc);
// 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);
}
// Delete object
// return indicator of success
public static bool Delete(Affiliations obj)
{
bool success = false;
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create DELETE command
string deleteStatment =
"DELETE FROM Affiliations " +
"WHERE AffilitationId = @AffilitationId " + // needed for identification of object
"AND AffName = @AffName " + // the rest - for optimistic concurrency
"AND AffDesc = @AffDesc ";
SqlCommand cmd = new SqlCommand(deleteStatment, connection);
// suply perameter value
cmd.Parameters.AddWithValue("@AffilitationId", obj.AffilitationId);
cmd.Parameters.AddWithValue("@AffName", obj.AffName);
cmd.Parameters.AddWithValue("@AffDesc", obj.AffDesc);
// 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 Affiliations GetValue(int objID)
{
Affiliations obj = null;
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create SELECT command
string query =
"SELECT AffilitationId, AffName, AffDesc " +
"FROM Affiliations " +
"WHERE AffilitationId = @AffilitationId ";
SqlCommand cmd = new SqlCommand(query, connection);
// suply perameter value
cmd.Parameters.AddWithValue("@AffilitationId", 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 Affiliations();
obj.AffilitationId = reader["AffilitationId"].ToString();
obj.AffName = reader["AffName"].ToString();
obj.AffDesc = reader["AffDesc"].ToString();
}
reader.Close();
}
catch (Exception ex)
{
throw ex;
}
finally // executes always
{
connection.Close();
}
return(obj);
}
// insert new row to table
// return new object
public static int Add(Affiliations obj)
{
int custID = 0;
// create connection
SqlConnection connection = TravelExperts.GetConection();
// create INSERT command
// CustomerID is IDENTITY so no value provided
string insertStatment =
"INSERT INTO Affiliations(AffilitationId, AffName, AffDesc) " +
"OUTPUT inserted.[AffilitationId] " +
"VALUES(@AffilitationId, @AffName, @AffDesc) ";
SqlCommand cmd = new SqlCommand(insertStatment, connection);
// suply perameter value
cmd.Parameters.AddWithValue("@AffilitationId", obj.AffilitationId);
cmd.Parameters.AddWithValue("@AffName", obj.AffName);
cmd.Parameters.AddWithValue("@AffDesc", obj.AffDesc);
// 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);
}