public int Save()
{
//Strings to handle query as it's built
String queryFull = "", queryCondition = "";
//verify input username is valid
if (resourceName == "" || resourceName == "*" || resourceName == " ") { return -1; }
//is this a new record? If so, we need an INSERT statement. Else, an UPDATE
if (NewOrOld == true)
{
queryFull = "INSERT INTO " + tableName + " VALUES (";
queryFull += "'" + resourceName + "', ";
queryFull += "'" + resourceDesc + "', ";
queryFull += resourceQuantity + ", "; //no quotes needed around numeric values
queryFull += "'" + Convert.ToString(resourceActive)+ ", ";
queryFull += resourceRate + ", ";
queryFull += "'" + createdTimeStamp.ToString("dd-MMMM-yyyy H:mm:ss") + "')";
}
else
{
//verify the record actually exists
ResourceRecord test = new ResourceRecord();
int initCheck = test.Load(resourceName);
if (initCheck < 0) { return -1; }
//build the UPDATE query (resourceName is skipped because it's a primary key)
queryFull = "UPDATE " + tableName + " SET ";
queryCondition = "WHERE " + attribNames[0] + "='" + resourceName + "'";
queryFull += attribNames[1] + "='" + resourceDesc + "', ";
queryFull += attribNames[2] + "=" + resourceQuantity + ", ";
queryFull += attribNames[3] + "='" + Convert.ToString(resourceActive) + "', ";
queryFull += attribNames[4] + "=" + resourceRate + ", ";
queryFull += attribNames[5] + "='" + createdTimeStamp.ToString("dd-MMMM-yyyy H:mm:ss") + "' ";
queryFull += queryCondition;
}
//attempt DB connection
try
{
dbConnection = new SqlConnection(dbInString);
dbConnection.Open();
}
catch { return -1; }
//create command that will run query
dbCommand = dbConnection.CreateCommand();
dbCommand.CommandText = queryFull;
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandTimeout = 15;
//Run command, and tidy-up if exceptions occur
try { dbReader = dbCommand.ExecuteReader(); }
catch
{
dbReader.Close();
dbConnection.Close();
return -1;
}
//Clean-up DB connection
try
{
dbReader.Close();
dbConnection.Close();
}
catch { return -1; }
//check if saved correctly if new
if (NewOrOld == true)
{
int saveCheck = Load(resourceName);
if (saveCheck < 0) { return -1; }
}
NewOrOld = false; //fail-safe
return 0;
}
public int Save()
{
//Strings to handle query as it's built
String queryFull = "", queryCondition = "";
int result = 0;
//verify input keys
if (BookingID < 0) { return -1; }
/* TO-DO: UNCOMMENT ONCE BOOKING CLASS EXISTS */
//Booking test = new Booking();
//result = test.Load(BookingID);
if (ResName == "" || ResName == "*" || ResName == " ") { return -1; }
ResourceRecord test = new ResourceRecord();
result = test.Load(ResName);
if (result < 0) { return -1; }
//is this a new record? If so, we need an INSERT statement. Else, an UPDATE
if (NewOrOld == true)
{
queryFull = "INSERT INTO " + tableName + " VALUES (";
queryFull += BookingID + ", ";
queryFull += "'" + ResName + "', ";
queryFull += "'" + Requester + "', ";
queryFull += Quantity + ", ";
queryFull += "'" + Convert.ToString(Approved) + "', ";
queryFull += "'" + createdTimeStamp.ToString("dd-MMMM-yyyy H:mm:ss") + "')";
}
else
{
//verify the record actually exists
ResourceRequest testA = new ResourceRequest();
int initCheck = testA.Load(BookingID, ResName);
if (initCheck < 0) { return -1; }
//build the UPDATE query (the two primary key fields are skipped here)
queryFull = "UPDATE " + tableName + " SET ";
queryCondition = "WHERE " + attribNames[0] + "=" + BookingID + " AND " + attribNames[1] + "='" + ResName + "'"; //compound key!
queryFull += attribNames[2] + "='" + Requester + "', ";
queryFull += attribNames[3] + "=" + Quantity + ", ";
queryFull += attribNames[4] + "='" + Convert.ToString(Approved) + "', ";
queryFull += attribNames[5] + "='" + createdTimeStamp.ToString("dd-MMMM-yyyy H:mm:ss") + "' ";
queryFull += queryCondition;
}
//attempt DB connection
try
{
dbConnection = new SqlConnection(dbInString);
dbConnection.Open();
}
catch { return -1; }
//create command that will run query
dbCommand = dbConnection.CreateCommand();
dbCommand.CommandText = queryFull;
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandTimeout = 15;
//Run command, and tidy-up if exceptions occur
try { dbReader = dbCommand.ExecuteReader(); }
catch
{
dbReader.Close();
dbConnection.Close();
return -1;
}
//Clean-up DB connection
try
{
dbReader.Close();
dbConnection.Close();
}
catch { return -1; }
//if new record, verify it saved correctly
if (NewOrOld == true)
{
int saveCheck = Load(BookingID, ResName);
if (saveCheck < 0) { return -1; }
}
NewOrOld = false; //fail-safe
return 0;
}
public int Delete()
{
//Use with caution! This will fail if orphaned entries exist
String queryFull = "DELETE FROM " + tableName, queryCondition = " WHERE " + attribNames[0] + "='" + resourceName + "'";
//verify input username is valid
if (resourceName == "" || resourceName == "*" || resourceName == " ") { return -1; }
//Check record exists in the first place
ResourceRecord test = new ResourceRecord();
int initCheck = test.Load(resourceName);
if (initCheck < 0) { return -1; }
/* TO DO - UNCOMMENT AND TEST LINES BELOW */
//Verify there are no resource requests (i.e. does it have entries that can be orphaned? If so, don't delete)
//ResourceRequest rsrNew = New ResourceRequest();
//int rsrCheck = rsrNew.Search(1, resourceName);
//if(rsrCheck > -1) { return -1; }
queryFull += queryCondition; //pull query together
//attempt DB connection
try
{
dbConnection = new SqlConnection(dbInString);
dbConnection.Open();
}
catch { return -1; }
//create command that will run query
dbCommand = dbConnection.CreateCommand();
dbCommand.CommandText = queryFull;
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandTimeout = 15;
//Run command, and tidy-up if exceptions occur
try { dbReader = dbCommand.ExecuteReader(); }
catch
{
dbReader.Close();
dbConnection.Close();
return -1;
}
//Check was deleted successfully
int delCheck = Load(resourceName);
if (delCheck > -1) { return -1; }
NewOrOld = true; //as the record no longer exists in the database, is considered 'new'
//Clean-up DB connection
try
{
dbReader.Close();
dbConnection.Close();
}
catch { return -1; }
return 0;
}
public int Populate(String fieldName, String criteria)
{
//re-initialise list
resList = new List<ResourceRecord>();
resNames = new List<String>();
//Build query - only need a list of IDs to know which bookings to populate list with
String queryFull = "SELECT " + attribNames[0] + " FROM " + tableName + " WHERE " + fieldName + "=" + criteria;
//verify fieldname is valid
Boolean fieldTest = false;
for (int i = 0; i <= numAttribs; i++)
{
if (attribNames[i] == fieldName)
{
fieldTest = true;
break;
}
}
if (!fieldTest) { return -1; }
//attempt DB connection
try
{
dbConnection = new SqlConnection(dbInString);
dbConnection.Open();
}
catch { return -1; }
//create command that will run query
dbCommand = dbConnection.CreateCommand();
dbCommand.CommandText = queryFull;
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandTimeout = 15;
//Run command, and tidy-up if exceptions occur
try { dbReader = dbCommand.ExecuteReader(); }
catch
{
dbReader.Close();
dbConnection.Close();
return -1;
}
//read in all the results and add them to list of booking IDs
while (dbReader.Read())
{
try
{
resNames.Add(dbReader[attribNames[0]].ToString());
}
catch { return -1; }
}
//verify at least one result was returned, else error
if (resNames.Count() < 1) { return -1; }
//Load found bookings into list
foreach (String res in resNames)
{
ResourceRecord newResRecord = new ResourceRecord();
int loadNewResRecord = newResRecord.Load(res);
if (loadNewResRecord < 0) { return -1; }
else
{
resList.Add(newResRecord);
}
}
//Clean-up DB connection
try
{
dbReader.Close();
dbConnection.Close();
}
catch { return -1; }
return 0;
}
