Revision 55f562a4

b/snf-cyclades-app/synnefo/api/util.py
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        return MacPrefixPoolTable
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    else:
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        raise Exception("Unknown resource type")
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def get_existing_users():
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    """
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    Retrieve user ids stored in cyclades user agnostic models.
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    """
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    # also check PublicKeys a user with no servers/networks exist
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    from synnefo.ui.userdata.models import PublicKeyPair
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    from synnefo.db.models import VirtualMachine, Network
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    keypairusernames = PublicKeyPair.objects.filter().values_list('user',
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                                                               flat=True)
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    serverusernames = VirtualMachine.objects.filter().values_list('userid',
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                                                                   flat=True)
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    networkusernames = Network.objects.filter().values_list('userid',
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                                                            flat=True)
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    return set(list(keypairusernames) + list(serverusernames) + \
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           list(networkusernames))
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