/*
* Purpose:
* Updates a record from the program table
*
* Parameters:
* programID to select a specific record
*
* Return:
* No return
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public void update(ProgramModel programModel)
{
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("UpdateProgramByID");
commandCreate.CommandType = System.Data.CommandType.StoredProcedure;
commandCreate.Parameters.Add("@ProgramID", SqlDbType.Int).Value = programModel.id;
commandCreate.Parameters.Add("@name", SqlDbType.Text).Value = programModel.name;
commandCreate.Parameters.Add("@programVarietyID", SqlDbType.Int).Value = programModel.programVarietyId;
//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 ProgramModel convertCursorRecordToModel(SqlDataReader dataReader)
{
ProgramModel programModel = new ProgramModel();
programModel.id = dataReader.GetInt32(0);
programModel.name = dataReader.GetString(1);
programModel.programVarietyId = dataReader.GetInt32(2);
return(programModel);
}
private ProgramModel convertCursorRecordToModel(SqlDataReader dataReader)
{
ProgramModel programModel = new ProgramModel();
programModel.id = dataReader.GetInt32(0);
programModel.programTypeId = dataReader.GetInt32(1);
programModel.programCostId = dataReader.GetInt32(2);
programModel.dogSpacesMaximum = dataReader.GetInt32(3);
programModel.noOfClasses = dataReader.GetInt32(4);
return(programModel);
}
/*
* Purpose:
* Reads all records from the program table
*
* Parameters:
* No parameters
*
* Return:
* All information from every record
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public List <ProgramModel> readAll()
{
List <ProgramModel> programs = new List <ProgramModel>();
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("ReadProgram");
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 program model for every record in the data reader
ProgramModel programModel = new ProgramModel();
//Copy information from the data reader into the new data model
programModel = convertCursorRecordToModel(dataReader);
//Copy the new model onto the end of the list
programs.Add(programModel);
}
//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(programs);
}
/*
* Purpose:
* Creates a new record in the program table
*
* Parameters:
* ProgramModel will be populated, although programID will have a defualt value of 0
*
* Return:
* programID of the record created
*
* Exceptions:
* Logs any exception thrown within the stored procedure and rethrows
*/
public int create(ProgramModel programModel)
{
int programID = 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("CreateProgram");
commandCreate.CommandType = System.Data.CommandType.StoredProcedure;
commandCreate.Parameters.Add("@ProgramID", SqlDbType.Int).Direction = ParameterDirection.Output; //Output parameter that will be returned from this function
commandCreate.Parameters.Add("@programTypeID", SqlDbType.Int).Value = programModel.programTypeId;
commandCreate.Parameters.Add("@programCostID", SqlDbType.Int).Value = programModel.programCostId;
commandCreate.Parameters.Add("@dogSpacesMaximum", SqlDbType.Int).Value = programModel.dogSpacesMaximum;
commandCreate.Parameters.Add("@noOfClasses", SqlDbType.Int).Value = programModel.noOfClasses;
//Which connection to execute the command against
commandCreate.Connection = connection;
//Execute the command
commandCreate.ExecuteNonQuery(); //Used for creating new records
//Handle return values
programID = Convert.ToInt32(commandCreate.Parameters["@ProgramID"].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(programID);
}
/*
* Purpose:
* Reads a record from the program table
*
* Parameters:
* programID 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 ProgramModel read(int programID)
{
ProgramModel programModel = new ProgramModel();
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("ReadProgramByID");
commandRead.CommandType = System.Data.CommandType.StoredProcedure;
commandRead.Parameters.Add("@ProgramID", SqlDbType.Int).Value = programID;
//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
programModel = 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(programModel);
}
