public AreaVisitEvent(DeviceLabelEvent _labelEvent, Area _area, LastAreaAccess _areaAccess, int _nTimeDelay)
{
device = _labelEvent.device;
label = _labelEvent.label;
signal = _labelEvent.signal;
area = _area;
areaAccess = _areaAccess;
timeDelay = _nTimeDelay;
}
public LastAreaAccess findOrCreateLastAreaAccess(Area _area, Device _device)
{
try
{
return (
from m in db.LastAreaAccesses
where m.areaId == _area.areaId && m.deviceId == _device.deviceId
select m
).First<LastAreaAccess>();
}
catch (Exception)
{
TimeSpan span = DateTime.Now.Subtract(new DateTime(1970, 1, 1, 0, 0, 0));
LastAreaAccess record = db.LastAreaAccesses.Create();
record.Area = _area;
record.Device = _device;
record.accessTime = (int)span.TotalSeconds;
db.LastAreaAccesses.Add(record);
db.SaveChanges();
System.Diagnostics.Debug.Write("\n Create new area access, area:" + _area.areaId + ", device: " + _device.deviceId + ", devicename: '" + _device.deviceName + "'");
return record;
}
}