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# -*- coding: utf-8 -*-
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#
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from django.db import models
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from django.utils.translation import ugettext_lazy as _
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from common.db.fields import BitChoices
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from common.utils.integer import bit
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__all__ = ["ActionChoices"]
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class ActionChoices(BitChoices):
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connect = bit(0), _("Connect")
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upload = bit(1), _("Upload")
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download = bit(2), _("Download")
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copy = bit(3), _("Copy")
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paste = bit(4), _("Paste")
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@classmethod
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def is_tree(cls):
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return True
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@classmethod
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def branches(cls):
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return (
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cls.connect,
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(_("Transfer"), [cls.upload, cls.download]),
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(_("Clipboard"), [cls.copy, cls.paste]),
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)
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@classmethod
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def has_perm(cls, action_name, total):
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action_value = getattr(cls, action_name)
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return action_value & total == action_value
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