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31 lines
790 B
31 lines
790 B
6 years ago
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# -*- coding: utf-8 -*-
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#
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import itertools
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from assets.models import SystemUser
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from .asset_user import AssetUserBackend
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class SystemUserBackend(AssetUserBackend):
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model = SystemUser
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backend = 'SystemUser'
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@classmethod
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def filter_queryset_more(cls, queryset):
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queryset = cls._distinct_system_users_by_username(queryset)
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return queryset
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@classmethod
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def _distinct_system_users_by_username(cls, system_users):
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system_users = sorted(
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system_users,
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key=lambda su: (su.username, su.priority, su.date_updated),
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reverse=True,
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)
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results = itertools.groupby(system_users, key=lambda su: su.username)
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system_users = [next(result[1]) for result in results]
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return system_users
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