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73 lines
2.7 KiB
73 lines
2.7 KiB
# -*- coding: utf-8 -*-
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#
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from django.db.models.signals import m2m_changed, post_save, post_delete
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from django.dispatch import receiver
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from django.db import transaction
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from common.utils import get_logger
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from .utils import AssetPermissionUtil
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from .models import AssetPermission
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logger = get_logger(__file__)
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def on_transaction_commit(func):
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"""
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如果不调用on_commit, 对象创建时添加多对多字段值失败
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"""
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def inner(*args, **kwargs):
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transaction.on_commit(lambda: func(*args, **kwargs))
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return inner
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@receiver(post_save, sender=AssetPermission, dispatch_uid="my_unique_identifier")
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@on_transaction_commit
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def on_permission_created(sender, instance=None, created=False, **kwargs):
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AssetPermissionUtil.expire_all_cache()
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@receiver(post_save, sender=AssetPermission)
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def on_permission_update(sender, **kwargs):
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AssetPermissionUtil.expire_all_cache()
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@receiver(post_delete, sender=AssetPermission)
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def on_permission_delete(sender, **kwargs):
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AssetPermissionUtil.expire_all_cache()
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@receiver(m2m_changed, sender=AssetPermission.nodes.through)
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def on_permission_nodes_changed(sender, instance=None, **kwargs):
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AssetPermissionUtil.expire_all_cache()
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if isinstance(instance, AssetPermission) and kwargs['action'] == 'post_add':
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logger.debug("Asset permission nodes change signal received")
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nodes = kwargs['model'].objects.filter(pk__in=kwargs['pk_set'])
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system_users = instance.system_users.all()
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for system_user in system_users:
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system_user.nodes.add(*tuple(nodes))
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@receiver(m2m_changed, sender=AssetPermission.assets.through)
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def on_permission_assets_changed(sender, instance=None, **kwargs):
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AssetPermissionUtil.expire_all_cache()
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if isinstance(instance, AssetPermission) and kwargs['action'] == 'post_add':
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logger.debug("Asset permission assets change signal received")
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assets = kwargs['model'].objects.filter(pk__in=kwargs['pk_set'])
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system_users = instance.system_users.all()
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for system_user in system_users:
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system_user.assets.add(*tuple(assets))
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@receiver(m2m_changed, sender=AssetPermission.system_users.through)
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def on_permission_system_users_changed(sender, instance=None, **kwargs):
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AssetPermissionUtil.expire_all_cache()
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if isinstance(instance, AssetPermission) and kwargs['action'] == 'post_add':
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logger.debug("Asset permission system_users change signal received")
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system_users = kwargs['model'].objects.filter(pk__in=kwargs['pk_set'])
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assets = instance.assets.all()
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nodes = instance.nodes.all()
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for system_user in system_users:
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system_user.nodes.add(*tuple(nodes))
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system_user.assets.add(*tuple(assets))
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