/// <summary>
/// Inserts or update the device with the given fields.
/// </summary>
/// <param name="gcmToken"></param>
/// <param name="deviceId"></param>
/// <param name="deviceType"></param>
/// <returns></returns>
public async Task InsertOrUpdateDevice(string gcmToken, string deviceId, string deviceType)
{
DbDevice db = new DbDevice();
DbStudent dbStudent = new DbStudent();
Student student = dbStudent.GetStudent();
Device device = db.GetDevice();
if (device == null)
{
device = new Device();
device.id = deviceId;
device.token = gcmToken;
device.tokenSent = false;
device.deviceType = deviceType;
if (student != null)
{
device.username = student.username;
}
db.InsertDevice(device);
if (student != null)
{
UpdateServersDb();
}
return;
}
if (device.token != gcmToken)
{
device.token = gcmToken;
device.tokenSent = false;
if (student != null)
{
device.username = student.username;
}
db.UpdateDevice(device);
if (student != null)
{
UpdateServersDb();
}
return;
}
if (!device.tokenSent && student != null)
{
if (device.username != student.username)
{
device.username = student.username;
db.UpdateDevice(device);
}
UpdateServersDb();
}
}
/// <summary>
/// Inserts the Device
/// into the database.
/// </summary>
/// <param name="student"></param>
/// <returns>Returns true if the Device was inserted, returns false if a Device with the same
/// primary key already exists in the table.</returns>
public bool InsertDevice(Device device)
{
if (CheckIfDeviceExist(device.id))
{
return false;
}
lock (DbContext.locker)
{
Db.Insert(device);
}
return true;
}
/// <summary>
/// Updates a Device, but if it doesnt already exist a new entry will be inserted into the db.
/// </summary>
/// <param name="device"></param>
public void UpdateDevice(Device device)
{
if (CheckIfDeviceExist(device.id))
{
lock (DbContext.locker)
{
Db.Update(device);
}
}
else
{
lock (DbContext.locker)
{
Db.Insert(device);
}
}
}
/// <summary>
/// Deletes the Device from the database
/// </summary>
/// <param name="device"></param>
/// <returns></returns>
public void DeleteDevice(Device device)
{
try
{
lock (DbContext.locker)
{
Db.Delete<Device>(device.id);
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("DbDevice - DeleteDevice(Device device): Exception msg: " + e.Message);
System.Diagnostics.Debug.WriteLine("DbDevice - DeleteDevice(Device device): Stack Trace: \n" + e.StackTrace);
System.Diagnostics.Debug.WriteLine("DbDevice - DeleteDevice(Device device): End Of Stack Trace");
}
}
