public Device Add(Device device)
{
this.devices.Add(device);
this.devices.SaveChanges();
return device;
}
public Device Update(int id, Device device)
{
var deviceToUpdate = this.devices.GetById(id);
deviceToUpdate.Name = device.Name;
deviceToUpdate.CategoryId = device.CategoryId;
this.devices.SaveChanges();
return deviceToUpdate;
}