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Viewing changes to lib/lpresults/hardware/models/devicestate.py

  • Committer: Marc Tardif
  • Date: 2011-08-09 15:46:45 UTC
  • Revision ID: marc.tardif@canonical.com-20110809154645-i151emhk6onjggx5
Added hardware for systems and system units.

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lib/lpresults/hardware/models/devicestate.py
 
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# Copyright 2010-2011 Canonical Ltd.  This software is licensed under the
 
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# GNU Affero General Public License version 3 (see the file LICENSE).
 
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__metaclass__ = type
 
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__all__ = [
 
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    "DeviceState",
 
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    ]
 
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from storm.locals import (
 
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    AutoReload,
 
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    Int,
 
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    Reference,
 
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    )
 
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from zope.interface import implements
 
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from lpresults.database.constants import (
 
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    INFINITY,
 
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    UTC_NOW,
 
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    )
 
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from lazr.delegates import delegates
 
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from lpresults.database.datetime import UTCDateTime
 
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from lpresults.hardware.interfaces.device import IDevice
 
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from lpresults.hardware.interfaces.devicestate import IDeviceState
 
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from lpresults.hardware.models.device import Device
 
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from lpresults.hardware.models.devicedriver import DeviceDriver
 
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from lpresults.hardware.models.systemunithelper import SystemUnitHelper
 
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class DeviceState(SystemUnitHelper):
 
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    __storm_table__ = "devicestate"
 
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    implements(IDeviceState)
 
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    delegates(IDevice, context="device")
 
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    id = Int(primary=True, allow_none=False, default=AutoReload)
 
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    system_unit_id = Int(allow_none=False)
 
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    device_id = Int(allow_none=False)
 
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    subdevice_id = Int()
 
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    driver_id = Int()
 
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    date_created = UTCDateTime(allow_none=False, default=UTC_NOW)
 
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    date_deleted = UTCDateTime(allow_none=False, default=INFINITY)
 
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    device = Reference(device_id, Device.id)
 
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    subdevice = Reference(subdevice_id, Device.id)
 
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    driver = Reference(driver_id, DeviceDriver.id)
 
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    def __init__(self, system_unit, device, subdevice=None, driver=None,
 
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            date_created=None):
 
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        super(DeviceState, self).__init__(system_unit)
 
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        self.device = device
 
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        self.subdevice = subdevice
 
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        self.driver = driver
 
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        if date_created is not None:
 
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            self.date_created = date_created