/*
* Purpose:
* Updates a record from the enrollment table
*
* Parameters:
* enrollmentID to select a specific record
*
* Return:
* No return
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public void update(EnrollmentModel enrollmentModel)
{
try
{
DataStoreConnectionHelper dataStoreHelper = new DataStoreConnectionHelper();
//Create connection to database
SqlConnection connection = dataStoreHelper.createConnection();
//Set up the stored procedure and the parameters
SqlCommand commandCreate = new SqlCommand("UpdateEnrollmentByID");
commandCreate.CommandType = System.Data.CommandType.StoredProcedure;
commandCreate.Parameters.Add("@EnrollmentID", SqlDbType.Int).Value = enrollmentModel.id;
commandCreate.Parameters.Add("@ClientID", SqlDbType.Int).Value = enrollmentModel.clientId;
commandCreate.Parameters.Add("@DogID", SqlDbType.Int).Value = enrollmentModel.dogId;
commandCreate.Parameters.Add("@ProgramID", SqlDbType.Int).Value = enrollmentModel.programId;
//Which connection to execute the command against
commandCreate.Connection = connection;
//Execute the command
commandCreate.ExecuteNonQuery(); //Used for updating new records
//Close connection to database
dataStoreHelper.closeConnection(connection);
}
catch (Exception ex)
{
//Log the exception and rethrow
Console.WriteLine("Exception thrown update: " + this.GetType().Name + ". <" + ex.Message + ">");
throw ex;
}
}
private EnrollmentModel convertCursorRecordToModel(SqlDataReader dataReader)
{
EnrollmentModel enrollmentModel = new EnrollmentModel();
enrollmentModel.id = dataReader.GetInt32(0);
enrollmentModel.clientId = dataReader.GetInt32(1);
enrollmentModel.dogId = dataReader.GetInt32(2);
enrollmentModel.programId = dataReader.GetInt32(3);
return(enrollmentModel);
}
private EnrollmentModel convertCursorRecordToModel(SqlDataReader dataReader)
{
EnrollmentModel enrollmentModel = new EnrollmentModel();
enrollmentModel.id = dataReader.GetInt32(0);
enrollmentModel.name = dataReader.GetString(1);
enrollmentModel.clientId = dataReader.GetInt32(2);
enrollmentModel.dogId = dataReader.GetInt32(3);
enrollmentModel.programId = dataReader.GetInt32(4);
enrollmentModel.paymentMethod = dataReader.GetInt32(5);
enrollmentModel.joinDate = dataReader.GetDateTime(6);
enrollmentModel.inviteIssued = dataReader.GetBoolean(7);
return(enrollmentModel);
}
/*
* Purpose:
* Reads all records from the enrollment table
*
* Parameters:
* No parameters
*
* Return:
* All information from every record
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public List <EnrollmentModel> readAll()
{
List <EnrollmentModel> enrollments = new List <EnrollmentModel>();
try
{
DataStoreConnectionHelper dataStoreHelper = new DataStoreConnectionHelper();
//Create connection to database
SqlConnection connection = dataStoreHelper.createConnection();
//Set up the stored procedure and the parameters
SqlCommand commandRead = new SqlCommand("ReadEnrollment");
commandRead.CommandType = System.Data.CommandType.StoredProcedure;
//Which connection to execute the command against
commandRead.Connection = connection;
//Execute the command
SqlDataReader dataReader = commandRead.ExecuteReader(); //Used for reading records
//Handle return values
while (dataReader.Read()) //Expecting multiple records - Read moves to the next record - Get values from the columns
{
//Create a new enrollment model for every record in the data reader
EnrollmentModel enrollmentModel = new EnrollmentModel();
//Copy information from the data reader into the new data model
enrollmentModel = convertCursorRecordToModel(dataReader);
//Copy the new model onto the end of the list
enrollments.Add(enrollmentModel);
}
//Close connection to database
dataStoreHelper.closeConnection(connection);
}
catch (Exception ex)
{
//Log the exception and rethrow
Console.WriteLine("Exception thrown readAll: " + this.GetType().Name + ". <" + ex.Message + ">");
throw ex;
}
return(enrollments);
}
/*
* Purpose:
* Creates a new record in the enrollment table
*
* Parameters:
* EnrollmentModel will be populated, although enrollmentID will have a defualt value of 0
*
* Return:
* enrollmentID of the record created
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public int create(EnrollmentModel enrollmentModel)
{
int enrollmentID = 0;
try
{
DataStoreConnectionHelper dataStoreHelper = new DataStoreConnectionHelper();
//Create connection to database
SqlConnection connection = dataStoreHelper.createConnection();
//Set up the stored procedure and the parameters
SqlCommand commandCreate = new SqlCommand("CreateEnrollment");
commandCreate.CommandType = System.Data.CommandType.StoredProcedure;
commandCreate.Parameters.Add("@EnrollmentID", SqlDbType.Int).Direction = ParameterDirection.Output; //Output parameter that will be returned from this function
commandCreate.Parameters.Add("@Name", SqlDbType.Text).Value = enrollmentModel.name;
commandCreate.Parameters.Add("@ClientID", SqlDbType.Int).Value = enrollmentModel.clientId;
commandCreate.Parameters.Add("@DogID", SqlDbType.Int).Value = enrollmentModel.dogId;
commandCreate.Parameters.Add("@ProgramID", SqlDbType.Int).Value = enrollmentModel.programId;
commandCreate.Parameters.Add("@PaymentMethod", SqlDbType.Int).Value = enrollmentModel.paymentMethod;
commandCreate.Parameters.Add("@JoinDate", SqlDbType.Date).Value = enrollmentModel.joinDate;
commandCreate.Parameters.Add("@InviteIssued", SqlDbType.Bit).Value = enrollmentModel.inviteIssued;
//Which connection to execute the command against
commandCreate.Connection = connection;
//Execute the command
commandCreate.ExecuteNonQuery(); //Used for creating new records
//Handle return values
enrollmentID = Convert.ToInt32(commandCreate.Parameters["@EnrollmentID"].Value); //Convert the output value from the SP into an int
//Close connection to database
dataStoreHelper.closeConnection(connection);
}
catch (Exception ex)
{
//Log the exception and rethrow
Console.WriteLine("Exception thrown create: " + this.GetType().Name + ". <" + ex.Message + ">");
throw ex;
}
return(enrollmentID);
}
/*
* Purpose:
* Reads a record from the enrollment table
*
* Parameters:
* enrollmentID allows the user to select a specific record
*
* Return:
* All information from the selected record
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public EnrollmentModel read(int enrollmentID)
{
EnrollmentModel enrollmentModel = new EnrollmentModel();
try
{
DataStoreConnectionHelper dataStoreHelper = new DataStoreConnectionHelper();
//Create connection to database
SqlConnection connection = dataStoreHelper.createConnection();
//Set up the stored procedure and the parameters
SqlCommand commandRead = new SqlCommand("ReadEnrollmentByID");
commandRead.CommandType = System.Data.CommandType.StoredProcedure;
commandRead.Parameters.Add("@EnrollmentID", SqlDbType.Int).Value = enrollmentID;
//Which connection to execute the command against
commandRead.Connection = connection;
//Execute the command
SqlDataReader dataReader = commandRead.ExecuteReader(); //Used for reading records
//Handle return values
dataReader.Read(); //Only expecting one record - Read moves to the first record - Get values from the columns
enrollmentModel = convertCursorRecordToModel(dataReader);
//Close connection to database
dataStoreHelper.closeConnection(connection);
}
catch (Exception ex)
{
//Log the exception and rethrow
Console.WriteLine("Exception thrown read: " + this.GetType().Name + ". <" + ex.Message + ">");
throw ex;
}
return(enrollmentModel);
}
