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41 lines
1.2 KiB
41 lines
1.2 KiB
from django.core.cache import cache
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from rest_framework.request import Request
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from common.utils.http import is_true
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from common.utils import lazyproperty
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from perms.utils import UserPermTreeRefreshUtil
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from users.models import User
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__all__ = ['RebuildTreeMixin']
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class RebuildTreeMixin:
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user: User
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request: Request
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def get(self, request, *args, **kwargs):
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UserPermTreeRefreshUtil(self.user).refresh_if_need(force=self.is_force_refresh_tree)
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return super().get(request, *args, **kwargs)
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@lazyproperty
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def is_force_refresh_tree(self):
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force = is_true(self.request.query_params.get('rebuild_tree'))
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if not force:
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force = self.compute_is_force_refresh()
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return force
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def compute_is_force_refresh(self):
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""" 5s 内连续刷新三次转为强制刷新 """
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force_timeout = 5
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force_max_count = 3
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force_cache_key = '{user_id}:{path}'.format(user_id=self.user.id, path=self.request.path)
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count = cache.get(force_cache_key, 1)
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if count >= force_max_count:
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force = True
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cache.delete(force_cache_key)
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else:
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force = False
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cache.set(force_cache_key, count + 1, force_timeout)
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return force
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