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Temporarily disable all signals in django.
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from collections import defaultdict | |
from django.db.models.signals import * | |
class DisableSignals(object): | |
def __init__(self, disabled_signals=None): | |
self.stashed_signals = defaultdict(list) | |
self.disabled_signals = disabled_signals or [ | |
pre_init, post_init, | |
pre_save, post_save, | |
pre_delete, post_delete, | |
pre_migrate, post_migrate, | |
] | |
def __enter__(self): | |
for signal in self.disabled_signals: | |
self.disconnect(signal) | |
def __exit__(self, exc_type, exc_val, exc_tb): | |
for signal in self.stashed_signals.keys(): | |
self.reconnect(signal) | |
def disconnect(self, signal): | |
self.stashed_signals[signal] = signal.receivers | |
signal.receivers = [] | |
def reconnect(self, signal): | |
signal.receivers = self.stashed_signals.get(signal, []) | |
del self.stashed_signals[signal] | |
# Example usage: | |
# with DisableSignals(): | |
# user.save() # will not call any signals |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
from collections import defaultdict | |
from django.db.models.signals import * | |
class DisableSignals(object): | |
def __init__(self, disabled_signals=None): | |
self.stashed_signals = defaultdict(list) | |
self.disabled_signals = disabled_signals or [ | |
pre_init, | |
post_init, | |
pre_save, | |
post_save, | |
pre_delete, | |
post_delete, | |
pre_migrate, | |
post_migrate, | |
m2m_changed, | |
] | |
def __enter__(self): | |
for signal in self.disabled_signals: | |
self.disconnect(signal) | |
def __exit__(self, exc_type, exc_val, exc_tb): | |
for signal in list(self.stashed_signals): | |
self.reconnect(signal) | |
def disconnect(self, signal): | |
self.stashed_signals[signal] = signal.receivers | |
signal.receivers = [] | |
def reconnect(self, signal): | |
signal.receivers = self.stashed_signals.get(signal, []) | |
del self.stashed_signals[signal] |
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