public static bool RecordScan(int deviceId, ScanType scanType, DateTime scanStartTime)
{
Transaction transaction = new Transaction(IsolationLevel.RepeatableRead, "ScanHistoryUpdate");
try
{
DeviceEntity device = new DeviceEntity();
transaction.Add(device);
device.FetchUsingPK(deviceId);
device.ScansUsed = device.ScansUsed + 1;
device.ScansAvailable = device.ScansAvailable - 1;
ScanHistoryEntity history = device.ScanHistories.AddNew();
history.ScanType = scanType;
history.ScanStartTime = scanStartTime;
device.Save(true); // recurse=true; will also save the history record
transaction.Commit();
return(true);
}
catch (Exception)
{
transaction.Rollback();
return(false);
}
finally
{
transaction.Dispose();
}
}
public static Boolean DecrementScansImpl(string deviceUniqueKeyVar, DateTime scanTime, short scanType)
{
Transaction transactionManager = new Transaction(IsolationLevel.ReadCommitted, "Decrement Scans");
int deviceId = DataHelpers.KeyToIdHelpers.ConvertDeviceKey(deviceUniqueKeyVar);
// Add in history record
ScanHistoryEntity scanHistoryEntity = new ScanHistoryEntity();
scanHistoryEntity.DeviceId = deviceId;
//scanHistoryEntity.ScanTypeId = scanType;
scanHistoryEntity.ScanStartTime = scanTime;
scanHistoryEntity.Save();
// Decrement useage counts
DeviceEntity deviceEntity = new DeviceEntity(deviceId);
deviceEntity.ScansAvailable = deviceEntity.ScansAvailable - 1;
deviceEntity.Save();
transactionManager.Commit();
transactionManager.Dispose();
return(true);
}
